Version 2.8.26: die Ordnerauswahl zeigt wieder Ordner

apps/tesm/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "tesm"
-version = "2.8.7"
+version = "2.8.26"
 description = "TESM -- Verwaltung und Ueberwachung von PoE-Endgeraeten und Aruba-Switchen"
 requires-python = ">=3.11"
 dependencies = [

apps/tesm/src/tesm/__init__.py

@@ -100,6 +100,7 @@ def _register_blueprints(app: Flask) -> None:
         settings,
         switches,
         hostkeys,
+        screen,
         terminal,
     )
 
@@ -116,6 +117,7 @@ def _register_blueprints(app: Flask) -> None:
     app.register_blueprint(license_bp.bp)
     app.register_blueprint(backup.bp)
     terminal.init_app(app)
+    screen.init_app(app)
 
     # Die Statusuebersicht ist die Startseite; ``index`` bleibt als Endpunkt
     # bestehen, weil der Kern (Weiterleitungen, Fehlerseiten) darauf verweist.

apps/tesm/src/tesm/blueprints/dashboard.py

@@ -14,7 +14,7 @@ from __future__ import annotations
 
 from typing import Any
 
-from flask import Blueprint, abort, render_template, request
+from flask import Blueprint, abort, render_template, request, url_for
 from tesm_core.security.sessions import fragment
 from tesm_core.extension import core, db
 
@@ -39,11 +39,28 @@ def _tiles(*, authenticated: bool) -> dict[str, Any]:
 
     from ..services import inventory, restart
 
+    from ..services import vnc as vnc_dienst
+
     conn = db()
     counts = monitor.dashboard_counts(conn)
     rows = inventory.list_devices(conn, only_active=not authenticated)
 
     detailed = authenticated and current_user.has("devices.read")
+    # Einmal je Seitenaufbau, nicht je Kachel: der Port ist fuer alle derselbe,
+    # und ohne das Recht wird gar nicht erst nachgesehen.
+    vnc_erlaubt = detailed and current_user.has("device_vnc.execute")
+    # Das Fenster setzt eine frische Passwortbestaetigung voraus -- dieselbe
+    # Schwelle wie die Geraeteseite. Fehlt sie, fuehrt der Knopf dorthin: dort
+    # wird danach gefragt, und ein Fenster, das sich mit "bitte erst
+    # bestaetigen" oeffnet, waere ein Klick fuer nichts.
+    from tesm_core.auth.service import reauth_is_fresh
+
+    vnc_fenster = vnc_erlaubt and reauth_is_fresh()
+    vnc_port = (
+        int(core().settings.get(conn, "vnc_port") or vnc_dienst.STANDARD_PORT)
+        if vnc_erlaubt and core().settings.get(conn, "vnc_enabled")
+        else 0
+    )
     tiles: list[dict[str, Any]] = []
     for row in rows:
         entry: dict[str, Any] = {
@@ -74,9 +91,27 @@ def _tiles(*, authenticated: bool) -> dict[str, Any]:
                         maintenance_active=_maintenance_active(),
                         darf=current_user.has,
                     ),
+                    # Der Knopf oeffnet die Sitzung in TESM selbst. Ein
+                    # vnc://-Link setzte einen eingerichteten Viewer auf dem
+                    # Arbeitsplatz voraus -- und tat dort, wo keiner
+                    # registriert ist, schlicht nichts.
+                    #
+                    # Ob dort ein Server antwortet, steht aus dem letzten
+                    # Durchlauf in der Datenbank. Die Uebersicht zeigt viele
+                    # Kacheln und laedt sich selbst nach; ein
+                    # Verbindungsversuch je Kachel und Aufbau waere genau die
+                    # Art Hintergrundlast, die niemand bestellt hat.
+                    "vnc": bool(vnc_port and row["vnc_open"]),
+                    "vnc_quelle": (
+                        url_for("screen.session_json", device_id=int(row["id"]))
+                        if vnc_port and row["vnc_open"]
+                        else ""
+                    ),
                 }
             )
         tiles.append(entry)
+    # Merker fuer die Vorlage: nur mit frischer Bestaetigung gibt es das
+    # Fenster; sonst zeigt die Kachel auf die Seite.
 
     sections = [
         {
@@ -121,6 +156,7 @@ def _tiles(*, authenticated: bool) -> dict[str, Any]:
         "counts": counts,
         "sections": sections,
         "detailed": detailed,
+        "vnc_fenster": vnc_fenster,
         "interval": int(core().settings.get(conn, "monitor_interval_seconds") or 300),
     }
 

apps/tesm/src/tesm/blueprints/devices.py

@@ -11,14 +11,23 @@ from __future__ import annotations
 
 from typing import Any
 
-from flask import Blueprint, abort, flash, redirect, render_template, request, url_for
+from flask import (
+    Blueprint,
+    Response,
+    abort,
+    flash,
+    redirect,
+    render_template,
+    request,
+    url_for,
+)
 from tesm_core import audit
 from tesm_core.auth.models import current_user, permission_required, reauth_required
 from tesm_core.auth.service import client_ip
 from tesm_core.db import Database
 from tesm_core.extension import core, db, transaction
 
-from ..services import inventory, monitor, restart, ssh
+from ..services import inventory, monitor, restart, ssh, vnc
 
 bp = Blueprint("devices", __name__, url_prefix="/monitoring/clients")
 
@@ -360,6 +369,70 @@ def detail(device_id: int):
         host_keys=host_keys,
         method_labels=monitor.METHOD_LABELS,
         terminal_enabled=bool(extension.settings.get(conn, "terminal_clients_enabled")),
+        vnc=_vnc_zugang(conn, device),
+    )
+
+
+def _vnc_zugang(conn: Any, device: dict[str, Any]) -> vnc.Zugang | None:
+    """Der Bildschirmzugriff dieses Clients -- aus dem, was bekannt ist.
+
+    Diese Seite fragt das Geraet **nicht**. Erreichbarkeit kommt aus dem
+    Ueberwachungsdurchlauf, die Anmeldeverfahren aus der letzten
+    ausdruecklichen Pruefung. Der Grund steht in :func:`vnc.zugang_gemerkt`:
+    jede Messung ist eine angefangene Protokollverhandlung, und ein RealVNC
+    Server zaehlt so etwas mit.
+    """
+    extension = core()
+    if not current_user.has("device_vnc.execute"):
+        return None
+    if not extension.settings.get(conn, "vnc_enabled"):
+        return None
+    port = int(extension.settings.get(conn, "vnc_port") or vnc.STANDARD_PORT)
+    return vnc.zugang_gemerkt(device, port=port)
+
+
+@bp.get("/<int:device_id>/vnc")
+@permission_required("device_vnc.execute")
+def vnc_connection(device_id: int):
+    """Die Verbindungsdatei -- drei Zeilen, sonst nichts.
+
+    Kein Passwort, kein Benutzername, keine Verschluesselungsvorgabe: was beim
+    Verbinden verlangt wird, entscheidet der VNC-Server auf dem Geraet. Die
+    Datei traegt nur, wohin es geht und wie die Verbindung im Viewer heisst.
+    """
+    conn = db()
+    device = inventory.get_device(conn, device_id)
+    if device is None:
+        abort(404)
+    extension = core()
+    if not extension.settings.get(conn, "vnc_enabled"):
+        abort(404)
+    port = int(extension.settings.get(conn, "vnc_port") or vnc.STANDARD_PORT)
+    ziel = vnc.ziel(device)
+    if not ziel:
+        abort(404)
+    # Kein Eintrag in der Aenderungskette: eine Verbindungsdatei ist derselbe
+    # Vorgang wie die Sitzung im Browser, nur fuer einen Viewer auf dem
+    # Arbeitsplatz -- und sie aendert nichts. Wer zusieht, steht im laufenden
+    # Protokoll; das Aenderungsprotokoll bleibt die Liste der Eingriffe.
+    live = core().registry.get("live_log")
+    if live is not None:
+        live.info(
+            "vnc", f"{current_user.username} lädt die Verbindungsdatei für {device['name']}"
+        )
+    return Response(
+        vnc.verbindungsdatei(
+            device,
+            port=port,
+            warnung_aus=bool(extension.settings.get(conn, "vnc_warn_unencrypted_off")),
+        ),
+        mimetype="application/octet-stream",
+        headers={
+            "Content-Disposition": f'attachment; filename="{vnc.dateiname(device)}"',
+            # Eine Verbindungsdatei ist kein Dokument, das ein Proxy aufheben
+            # soll -- und sie ist billig genug, sie jedes Mal neu zu erzeugen.
+            "Cache-Control": "no-store",
+        },
     )
 
 

apps/tesm/src/tesm/blueprints/maintenance.py

@@ -18,7 +18,7 @@ from __future__ import annotations
 from flask import Blueprint, abort, flash, jsonify, redirect, render_template, request, url_for
 from tesm_core.security.sessions import fragment
 from tesm_core import audit
-from tesm_core.auth.models import current_user, permission_required
+from tesm_core.auth.models import current_user, permission_required, reauth_required
 from tesm_core.auth.service import client_ip
 from tesm_core.db import Database
 from tesm_core.extension import core, db, transaction
@@ -77,7 +77,7 @@ def _query_devices(conn) -> list[dict]:  # type: ignore[no-untyped-def]
 
 @bp.get("/")
 @permission_required(*SERVICING_PAGE, mode="any")
-def overview():
+def overview():  # noqa: C901 - eine Seite, drei Aufgaben
     conn = db()
     return render_template(
         "tesm/maintenance.html",
@@ -89,6 +89,7 @@ def overview():
         terminal_enabled=bool(core().settings.get(conn, "terminal_clients_enabled")),
         windows_tool_missing=_windows_tool_missing(conn),
         windows_package=windowsops.REQUIRED_PACKAGE,
+        befehlsvorlagen=service.BEFEHLSVORLAGEN,
     )
 
 
@@ -150,6 +151,13 @@ def status():
         {
             "running": running,
             "poll_ms": 2000 if running else 10000,
+            # Der Zustand der Geraete gehoert dazu: die Seite steht sonst mit
+            # dem Stand ihres Aufbaus da, und wer nach einem Neustart auf die
+            # Rueckkehr wartet, sieht "unbekannt", bis er von Hand neu laedt.
+            "devices": [
+                {"id": int(row["id"]), "state": str(row["state"] or "unknown")}
+                for row in _eligible_devices(conn)
+            ],
             "jobs": [
                 {
                     "id": job["id"],
@@ -159,6 +167,16 @@ def status():
                     "progress": job["progress"],
                     "message": job["message"],
                     "updated_at": job["updated_at"],
+                    # Die letzten Zeilen -- nur von dem, was gerade laeuft.
+                    # Mitlesen heisst mitlesen: wer nach der Wartung wissen
+                    # will, was war, oeffnet den Auftrag. Alles mitzuschicken
+                    # hiesse, alle zwei Sekunden das gesamte Protokoll aller
+                    # Geraete zu uebertragen.
+                    "output": (
+                        service.letzte_zeilen(str(job["output"] or ""))
+                        if service.eben_fertig(dict(job))
+                        else ""
+                    ),
                 }
                 for job in jobs
             ],
@@ -187,7 +205,7 @@ def job_output(job_id: str):
     return render_template("tesm/_maintenance_output.html", job=job)
 
 
-def _start(kind: str) -> None:
+def _start(kind: str, befehl: str = "") -> None:
     extension = core()
     conn = db()
     device_ids = [int(value) for value in request.form.getlist("device_ids") if value.isdigit()]
@@ -233,12 +251,27 @@ def _start(kind: str) -> None:
                 actor_id=current_user.id,
                 action=kind,
                 target=str(device["name"]),
-                detail=f"Auftrag {handle.id}",
+                # Beim Befehl gehoert sein Wortlaut hierher und nicht nur die
+                # Auftragsnummer: was gelaufen ist, muss aus dem Protokoll
+                # hervorgehen, auch wenn der Auftrag laengst aus dem Verlauf
+                # gerollt ist.
+                detail=f"Auftrag {handle.id}" + (f": {befehl}" if befehl else ""),
                 ip=client_ip(),
-                severity="notice",
+                severity="warning" if befehl else "notice",
             )
 
-        if kind == service.JOB_KIND_UPDATE:
+        if kind == service.JOB_KIND_COMMAND:
+            service.start_background(
+                service.run_command,
+                database=extension.database,
+                job_id=handle.id,
+                device=dict(device),
+                username=username,
+                password=password,
+                befehl=befehl,
+                timeout=int(extension.settings.get(conn, "maintenance_command_timeout") or 900),
+            )
+        elif kind == service.JOB_KIND_UPDATE:
             service.start_background(
                 service.run_update,
                 database=extension.database,
@@ -289,3 +322,22 @@ def start_update():
 def start_reboot():
     _start(service.JOB_KIND_REBOOT)
     return redirect(url_for("maintenance.overview"))
+
+
+@bp.post("/command")
+@permission_required("servicing_command.execute")
+@reauth_required
+def start_command():
+    """Eine Befehlszeile auf allen ausgewaehlten Clients.
+
+    Dieselbe Schwelle wie die Konsole: eigenes Recht **und** eine frische
+    Passwortbestaetigung. Wer hier etwas eintippt, tut es auf einem Dutzend
+    Maschinen gleichzeitig, und niemand sieht dabei zu.
+    """
+    try:
+        befehl = service.befehl_pruefen(request.form.get("befehl", ""))
+    except ValueError as exc:
+        flash(str(exc), "danger")
+        return redirect(url_for("maintenance.overview"))
+    _start(service.JOB_KIND_COMMAND, befehl=befehl)
+    return redirect(url_for("maintenance.overview"))

apps/tesm/src/tesm/blueprints/screen.py

@@ -0,0 +1,484 @@
+"""Bildschirm eines Clients im Browser -- noVNC ueber eine WebSocket-Strecke.
+
+Warum ueberhaupt im Browser und nicht mit dem Viewer auf dem Arbeitsplatz: der
+Viewer muss installiert, gepflegt und mit Zugangsdaten versorgt werden, und vom
+Telefon aus gibt es ihn gar nicht. Hier genuegt die Anmeldung an TESM -- die
+Rechte, die Protokollierung und die Frage "darf dieser Mensch auf diesen
+Bildschirm?" haengen ohnehin schon dort.
+
+**Die Strecke reicht durch, sie versteht nichts.** Der Server oeffnet eine
+gewoehnliche TCP-Verbindung zum VNC-Server und schaufelt Bytes in beide
+Richtungen; das RFB-Protokoll samt Authentifizierung handelt der Browser
+unmittelbar mit dem Geraet aus. Das ist Absicht: eine Gegenstelle, die das
+Protokoll auspackt, muesste die Verschluesselung aufbrechen und wieder
+aufbauen -- mehr Code an der empfindlichsten Stelle, ohne dass jemand etwas
+davon haette.
+
+**Was daraus folgt** und nicht verschwiegen werden soll: weil der Browser die
+Anmeldung fuehrt, muss er die Zugangsdaten kennen. Hinterlegte Zugangsdaten
+gibt TESM deshalb nur an einen Menschen heraus, der Geheimnisse ohnehin sehen
+darf (``credentials.secrets``) -- jede Herausgabe steht im Aenderungsprotokoll.
+Wer das Recht nicht hat, tippt sie in der Seite selbst ein; sie gehen dann
+durch den Browser, aber nie durch unsere Datenbank.
+"""
+
+from __future__ import annotations
+
+import logging
+import socket
+import threading
+import time
+from typing import Any
+
+from flask import (
+    Blueprint,
+    abort,
+    flash,
+    redirect,
+    render_template,
+    request,
+    url_for,
+)
+from tesm_core import audit
+from tesm_core.auth.models import current_user, permission_required, reauth_required
+from tesm_core.auth.service import client_ip, reauth_is_fresh
+from tesm_core.extension import core, db
+
+from ..services import inventory, vnc
+
+logger = logging.getLogger(__name__)
+
+bp = Blueprint("screen", __name__)
+
+#: Wie lange auf den VNC-Server gewartet wird, bis die Strecke steht.
+VERBINDUNGSLIMIT = 6.0
+
+#: Groesse der Haeppchen, in denen vom Geraet gelesen wird. Ein Bildschirm
+#: liefert in Schueben; kleiner hiesse mehr Runden, groesser mehr Wartezeit,
+#: bis ein Schub weitergereicht wird.
+BLOCK = 32 * 1024
+
+#: Wie oft nachgesehen wird, ob die Sitzung noch etwas tut. Kurz genug, dass
+#: das Trennen puenktlich ist, lang genug, dass das Nachsehen nichts kostet.
+TAKT = 1.0
+
+
+def _geraet(conn: Any, device_id: int) -> dict[str, Any] | None:
+    device = inventory.get_device(conn, device_id)
+    if device is None or device.get("deleted_at"):
+        return None
+    return device
+
+
+def _erklaerung(fehler: OSError) -> str:
+    """Die Fehlernummer in einem Satz, der weiterhilft.
+
+    "No route to host" und "Connection refused" sehen im Protokoll gleich
+    harmlos aus und bedeuten das Gegenteil voneinander: einmal kommt man gar
+    nicht hin, einmal kommt man hin und niemand hoert zu. Und beides hat mit
+    einem gelungenen Ping nichts zu tun -- der prueft eine andere Schicht.
+    """
+    import errno as fehlernummern
+
+    nummer = getattr(fehler, "errno", None)
+    if nummer == fehlernummern.EHOSTUNREACH:
+        return (
+            f"{fehler} – kein Weg dorthin. Eine Firewall oder eine Route steht "
+            "dazwischen; ein gelungener Ping sagt darüber nichts, der prüft eine "
+            "andere Schicht"
+        )
+    if nummer == fehlernummern.ECONNREFUSED:
+        return f"{fehler} – das Gerät ist erreichbar, aber auf diesem Port hört niemand"
+    if nummer == fehlernummern.ETIMEDOUT:
+        return f"{fehler} – keine Antwort; Paketfilter verwerfen meist stillschweigend"
+    return str(fehler)
+
+
+def _port(conn: Any) -> int:
+    extension = core()
+    if not extension.settings.get(conn, "vnc_enabled"):
+        return 0
+    return int(extension.settings.get(conn, "vnc_port") or vnc.STANDARD_PORT)
+
+
+@bp.get("/monitoring/clients/<int:device_id>/screen")
+@permission_required("device_vnc.execute")
+@reauth_required
+def screen(device_id: int):
+    """Die Seite mit der Leinwand.
+
+    Sie beruehrt das Geraet nicht: die Sitzung selbst ist der einzige Anlass,
+    dort anzuklopfen. Was ueber die Anmeldeverfahren bekannt ist, steht in der
+    Datenbank -- aus der letzten ausdruecklichen Pruefung (Knopf "Verfahren
+    pruefen"). Dass diese Seite frueher selbst gemessen hat, war ein Fehler:
+    jede Messung ist eine angefangene und abgebrochene Protokollverhandlung,
+    und ein RealVNC Server zaehlt so etwas -- das Oeffnen der Seite hat der
+    Sitzung also selbst im Weg gestanden.
+    """
+    conn = db()
+    device = _geraet(conn, device_id)
+    if device is None:
+        abort(404)
+    port = _port(conn)
+    if not port:
+        abort(404)
+
+    zugang = vnc.zugang_gemerkt(device, port=port)
+    return render_template(
+        "tesm/screen.html",
+        device=device,
+        zugang=zugang,
+        quelle=url_for("screen.session_json", device_id=device_id),
+        darf_geheimnis=bool(current_user.has("credentials.secrets")),
+        verfahren_name=vnc.verfahren_name,
+    )
+
+
+def _zugangsdaten(conn: Any, device: dict[str, Any]) -> tuple[str, str]:
+    """Hinterlegte Zugangsdaten -- nur fuer den, der Geheimnisse sehen darf.
+
+    Weil der Browser die Anmeldung fuehrt, muessen sie in die Seite. Wer
+    Geheimnisse nicht sehen darf, bekommt sie auch hier nicht: sonst waere die
+    Bildschirmsitzung der Umweg, auf dem jeder das Passwort liest. Jede
+    Herausgabe steht im Aenderungsprotokoll -- das ist kein Zusehen, sondern
+    ein Zugriff auf etwas, das sonst niemand sieht.
+    """
+    if not device.get("credential_id") or not current_user.has("credentials.secrets"):
+        return "", ""
+    try:
+        benutzer, passwort = inventory.credential_secret(
+            conn, core().keystore, int(device["credential_id"])
+        )
+    except inventory.ValidationError:
+        return "", ""
+    if passwort:
+        with core().database.transaction(conn):
+            audit.log(
+                conn,
+                actor=current_user.username,
+                actor_id=current_user.id,
+                action="device.vnc_credentials_used",
+                target=str(device["name"]),
+                detail=(
+                    f"Hinterlegte Zugangsdaten ({benutzer}) an die Bildschirmsitzung "
+                    "übergeben"
+                ),
+                ip=client_ip(),
+                severity="warning",
+            )
+    return benutzer, passwort
+
+
+@bp.post("/monitoring/clients/<int:device_id>/screen/probe")
+@permission_required("device_vnc.execute")
+@reauth_required
+def probe(device_id: int):
+    """Fragt das Geraet ausdruecklich, wie es sich authentifizieren will.
+
+    Ein Knopf und keine Nebenwirkung des Seitenaufbaus: die Messung bricht eine
+    Protokollverhandlung ab, und RealVNC zaehlt das. Sie gehoert in die Hand
+    dessen, der gerade sucht -- nicht in jeden Aufruf.
+    """
+    conn = db()
+    device = _geraet(conn, device_id)
+    if device is None:
+        abort(404)
+    port = _port(conn)
+    if not port:
+        abort(404)
+
+    from ..services import monitor
+
+    zugang = vnc.zugang(device, port=port)
+    with core().database.transaction(conn):
+        monitor.merke_vnc(conn, int(device["id"]), zugang.erreichbar, zugang.ziel)
+        monitor.merke_verfahren(conn, int(device["id"]), zugang.verfahren, zugang.absage)
+    if zugang.absage:
+        flash(f"Der Server antwortet: „{zugang.absage}“", "warning")
+    elif zugang.verfahren:
+        flash(
+            "Angebotene Anmeldeverfahren: "
+            + ", ".join(vnc.verfahren_name(v) for v in zugang.verfahren),
+            "info",
+        )
+    else:
+        flash(f"{zugang.ziel}:{port} hat nicht geantwortet.", "danger")
+    return redirect(url_for("screen.screen", device_id=device_id))
+
+
+@bp.get("/monitoring/clients/<int:device_id>/screen/session")
+@permission_required("device_vnc.execute")
+def session_json(device_id: int):
+    """Alles, was der Client fuer eine Sitzung braucht -- als Auskunft.
+
+    Warum nicht in die Seite geschrieben: dieselbe Sitzung laeuft auch im
+    Fenster der Statusuebersicht, und dort stuenden sonst die Zugangsdaten
+    **jedes** Geraets im Quelltext der Seite. So holt sie sich nur, wer eine
+    Sitzung wirklich oeffnet -- und nur fuer das eine Geraet.
+
+    Die frische Passwortbestaetigung wird hier von Hand geprueft statt ueber
+    den Dekorator: der wuerde auf eine Seite umleiten, und eine Umleitung ist
+    fuer einen Abruf im Hintergrund keine Auskunft. 409 mit einem Hinweis ist
+    eine.
+    """
+    conn = db()
+    device = _geraet(conn, device_id)
+    if device is None:
+        abort(404)
+    port = _port(conn)
+    if not port:
+        abort(404)
+    if not reauth_is_fresh():
+        return {"reauth": True}, 409
+
+    zugang = vnc.zugang_gemerkt(device, port=port)
+    benutzer, passwort = _zugangsdaten(conn, device)
+    return {
+        "name": str(device["name"]),
+        "socket": f"/ws/screen/{device_id}",
+        "ziel": f"{zugang.ziel}:{zugang.port}",
+        "verfahren": list(zugang.verfahren),
+        "bewaehrt": zugang.bewaehrt,
+        "hinderungsgrund": zugang.hinderungsgrund,
+        "meldeweg": url_for("screen.merke_verfahren", device_id=device_id),
+        "vorgaben": {"username": benutzer, "password": passwort},
+    }
+
+
+@bp.post("/monitoring/clients/<int:device_id>/screen/method")
+@permission_required("device_vnc.execute")
+def merke_verfahren(device_id: int):
+    """Der Browser meldet, womit die Sitzung zustande kam.
+
+    Nur er weiss es: die Strecke reicht Bytes durch und liest das Protokoll
+    nicht. Beim naechsten Mal faengt die Seite damit an, statt wieder bei der
+    ersten Wahl des Servers -- die hier schon einmal abgerissen ist und deren
+    Absage sich ein sperrender RealVNC Server Minuten Zeit laesst.
+    """
+    conn = db()
+    device = _geraet(conn, device_id)
+    if device is None:
+        abort(404)
+    try:
+        verfahren = int(request.json.get("verfahren", 0)) if request.json else 0
+    except (TypeError, ValueError):
+        verfahren = 0
+    if not 0 < verfahren < 256:
+        return {"ok": False}, 400
+
+    from ..services import monitor
+
+    with core().database.transaction(conn):
+        monitor.merke_verfahren_das_traegt(conn, int(device["id"]), verfahren)
+    return {"ok": True}
+
+
+def init_app(app) -> None:  # type: ignore[no-untyped-def]
+    """Meldet Seite und -- falls verfuegbar -- die WebSocket-Strecke an."""
+    app.register_blueprint(bp)
+
+    try:
+        from flask_sock import Sock
+    except ImportError:  # pragma: no cover - optionale Abhaengigkeit
+        logger.info("flask-sock fehlt – die Bildschirmsitzung bleibt abgeschaltet.")
+        return
+
+    sock = Sock(app)
+
+    @sock.route("/ws/screen/<int:device_id>")
+    def screen_socket(ws, device_id: int):  # type: ignore[no-untyped-def]
+        _strecke(ws, device_id)
+
+    @sock.route("/ws/probe")
+    def probe_socket(ws):  # type: ignore[no-untyped-def]
+        """Sagt "da", und mehr nicht.
+
+        Wozu: bricht eine Bildschirmsitzung ab, gibt es zwei sehr verschiedene
+        Ursachen -- der VNC-Server mag nicht, oder die WebSocket-Verbindung
+        kommt gar nicht erst durch (ein Proxy zwischen Browser und TESM, der
+        "Upgrade" nicht weiterreicht, ist der haeufigste Fall). Von aussen
+        sehen beide gleich aus: ein Abbruch ohne Grund. Diese Probe trennt
+        sie, ohne dass jemand ein Protokoll lesen muss.
+        """
+        if not current_user.is_authenticated:
+            ws.close(1008, "Nicht angemeldet.")
+            return
+        try:
+            ws.send("da")
+            ws.receive(timeout=2)
+        except Exception:  # noqa: BLE001 - der Browser ist weg, das ist keine Stoerung
+            pass
+
+
+def _strecke(ws, device_id: int) -> None:  # type: ignore[no-untyped-def]
+    """Bytes hin, Bytes her -- und sonst nichts.
+
+    Die Pruefungen stehen hier ausdruecklich noch einmal: ein WebSocket geht an
+    den Dekoratoren der HTTP-Route vorbei.
+    """
+    extension = core()
+    conn = db()
+
+    if not current_user.is_authenticated or not current_user.has("device_vnc.execute"):
+        ws.close(1008, "Keine Berechtigung für den Bildschirm dieses Clients.")
+        return
+    if not reauth_is_fresh():
+        ws.close(1008, "Die Passwortbestätigung ist abgelaufen.")
+        return
+    port = _port(conn)
+    if not port:
+        ws.close(1008, "Der Bildschirmzugriff ist in dieser Installation abgeschaltet.")
+        return
+    device = _geraet(conn, device_id)
+    if device is None:
+        ws.close(1008, "Client nicht gefunden.")
+        return
+    host = vnc.ziel(device)
+    if not host:
+        ws.close(1008, "Für diesen Client ist kein Ziel bekannt.")
+        return
+
+    gegenstelle = None
+    ausweich = str(device.get("ip") or "").strip()
+    for versuch, ziel_host in enumerate([host] + ([ausweich] if ausweich != host else [])):
+        try:
+            gegenstelle = socket.create_connection((ziel_host, port), timeout=VERBINDUNGSLIMIT)
+            if versuch:
+                # Der Name fuehrte ins Leere, die Adresse nicht. Das ist eine
+                # Auskunft ueber das Netz, keine Nebensaechlichkeit: irgendwo
+                # zeigt ein Eintrag woandershin.
+                if live_log := extension.registry.get("live_log"):
+                    live_log.warning(
+                        "vnc",
+                        f"{host} war nicht erreichbar – Sitzung läuft über {ziel_host}",
+                    )
+                host = ziel_host
+            break
+        except OSError as exc:
+            letzter = exc
+    if gegenstelle is None:
+        ws.close(1011, f"{host}:{port} antwortet nicht ({_erklaerung(letzter)}).")
+        return
+    # Das Zeitlimit galt dem *Aufbau* -- als Abbruchgrund taugt es nicht.
+    #
+    # ``create_connection`` setzt es an den Socket, und dort gilt es fuer jede
+    # weitere Leseoperation. Ein Bildschirm, auf dem sich gerade nichts tut,
+    # schickt sekundenlang nichts; nach sechs Sekunden Stille brach das Lesen
+    # mit einer Zeitueberschreitung ab, und die Sitzung war weg. Genau so
+    # beobachtet: Bild steht, nach fuenf bis zehn Sekunden Schluss.
+    #
+    # Stattdessen ein kurzer Takt: das Lesen laeuft immer wieder in ein
+    # Zeitlimit, und *das* ist kein Abbruch, sondern der Anlass nachzusehen,
+    # ob die Sitzung ueberhaupt noch etwas tut.
+    # Ohne das sammelt der Kern kleine Pakete, bis genug beisammen ist
+    # (Nagle) -- bei einem Bildschirm sind Tastendruck und Mausbewegung genau
+    # solche kleinen Pakete, und das Warten darauf faellt als Ruckeln auf.
+    gegenstelle.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
+    gegenstelle.settimeout(TAKT)
+    leerlauf = int(extension.settings.get(conn, "vnc_idle_timeout") or 0)
+
+    # Ins **laufende** Protokoll, nicht in die Aenderungskette: eine
+    # Bildschirmsitzung aendert nichts an der Anlage. Das Aenderungsprotokoll
+    # soll beantworten, wer was umgestellt hat -- wer wann zugesehen hat,
+    # gehoert nicht in dieselbe Liste und macht sie in einem Betrieb mit
+    # ein paar Dutzend Geraeten unlesbar. Sichtbar ist die Sitzung trotzdem,
+    # solange sie laeuft.
+    begonnen = time.monotonic()
+    live = extension.registry.get("live_log")
+    if live is not None:
+        live.info("vnc", f"{current_user.username} öffnet den Bildschirm von {device['name']}")
+
+    laeuft = threading.Event()
+    laeuft.set()
+    #: Wann zuletzt etwas floss -- in *irgendeine* Richtung. Eine Liste, weil
+    #: beide Richtungen daran schreiben und eine Zuweisung in Python nicht in
+    #: die andere hineinlaufen kann.
+    zuletzt = [time.monotonic()]
+    #: Grund des Endes, falls wir selbst getrennt haben.
+    schluss = [""]
+    #: Kam ueberhaupt schon ein Byte vom Geraet?
+    gehoert = [False]
+
+    def vom_geraet() -> None:
+        """Alles, was der VNC-Server schickt, geht als Binaerrahmen weiter."""
+        try:
+            while laeuft.is_set():
+                try:
+                    daten = gegenstelle.recv(BLOCK)
+                except socket.timeout:
+                    # Kein Fehler, nur Stille -- und die bedeutet zweierlei,
+                    # je nachdem, ob die Sitzung schon stand.
+                    #
+                    # **Vor dem ersten Byte** ist Stille ein Befund: der Port
+                    # nimmt an, aber es kommt nichts. Genau so verhaelt sich
+                    # ein RealVNC Server, der die Adresse gerade aussperrt. Wer
+                    # das nicht erfaehrt, sieht ewig "Verbindung wird
+                    # aufgebaut" -- und sucht den Fehler bei uns.
+                    if not gehoert[0] and time.monotonic() - begonnen > VERBINDUNGSLIMIT:
+                        schluss[0] = (
+                            f"{host}:{port} nimmt die Verbindung an, schickt aber nichts. "
+                            "So verhält sich ein VNC-Server, der die Adresse gerade "
+                            "aussperrt (RealVNC: BlacklistTimeout) – ein Neustart des "
+                            "VNC-Dienstes auf dem Gerät räumt das ab."
+                        )
+                        break
+                    # **Danach** ist Stille der Normalfall: ein Bildschirm, auf
+                    # dem sich nichts tut, schickt nichts.
+                    if gehoert[0] and leerlauf and time.monotonic() - zuletzt[0] > leerlauf:
+                        schluss[0] = (
+                            f"Sitzung nach {leerlauf} Sekunden ohne Bewegung getrennt"
+                        )
+                        break
+                    continue
+                if not daten:
+                    if not gehoert[0]:
+                        schluss[0] = (
+                            f"{host}:{port} hat die Verbindung sofort wieder geschlossen."
+                        )
+                    break
+                gehoert[0] = True
+                zuletzt[0] = time.monotonic()
+                ws.send(daten)
+        except Exception:  # noqa: BLE001 - Abbruch ist der Normalfall, nicht die Stoerung
+            pass
+        finally:
+            laeuft.clear()
+            try:
+                if schluss[0]:
+                    ws.close(1000 if gehoert[0] else 1011, schluss[0])
+                else:
+                    ws.close()
+            except Exception:  # noqa: BLE001
+                pass
+
+    leser = threading.Thread(target=vom_geraet, name=f"vnc-{device_id}", daemon=True)
+    leser.start()
+
+    try:
+        while laeuft.is_set():
+            nachricht = ws.receive()
+            if nachricht is None:
+                break
+            if isinstance(nachricht, str):
+                # Der Browser-Client schickt ausschliesslich Binaerrahmen. Text
+                # waere entweder ein Irrtum oder ein Versuch -- beides endet
+                # hier und nicht auf dem Geraet.
+                continue
+            zuletzt[0] = time.monotonic()
+            gegenstelle.sendall(nachricht)
+    except Exception:  # noqa: BLE001
+        logger.debug("Bildschirmsitzung beendet (%s)", device["name"], exc_info=True)
+    finally:
+        laeuft.clear()
+        try:
+            gegenstelle.shutdown(socket.SHUT_RDWR)
+        except OSError:
+            pass
+        gegenstelle.close()
+        dauer = int(time.monotonic() - begonnen)
+        if live is not None:
+            live.info(
+                "vnc",
+                f"Bildschirmsitzung {device['name']} beendet ({dauer}s)"
+                + (f" – {schluss[0]}" if schluss[0] else ""),
+            )

apps/tesm/src/tesm/blueprints/settings.py

@@ -103,6 +103,10 @@ def system():
                 "monitor_failures_before_restart",
                 "monitor_auto_restart",
                 "dashboard_public",
+                "vnc_enabled",
+                "vnc_port",
+                "vnc_idle_timeout",
+                "vnc_warn_unencrypted_off",
                 "terminal_switches_enabled",
                 "terminal_clients_enabled",
                 "terminal_idle_timeout",
@@ -143,6 +147,10 @@ def system_save():
         "monitor_failures_before_restart",
         "monitor_auto_restart",
         "dashboard_public",
+        "vnc_enabled",
+        "vnc_port",
+        "vnc_idle_timeout",
+        "vnc_warn_unencrypted_off",
         "terminal_switches_enabled",
         "terminal_clients_enabled",
         "terminal_idle_timeout",
@@ -305,7 +313,7 @@ def run_check_now():
     extension = core()
 
     def worker() -> None:
-        from ..services import inventory, monitor
+        from ..services import inventory, monitor, vnc
 
         allowed = extension.license is None or extension.license.feature_allowed(
             "auto_poe_restart"
@@ -315,6 +323,7 @@ def run_check_now():
             live=extension.registry["live_log"],
             keystore=extension.keystore,
             license_allows_auto_restart=allowed,
+            vnc_port=vnc.port_aus_einstellungen(extension),
         )
 
     threading.Thread(target=worker, name="manual-sweep", daemon=True).start()

apps/tesm/src/tesm/blueprints/terminal.py

@@ -76,6 +76,16 @@ CLIENT_COMMANDS: tuple[tuple[str, str], ...] = (
     ("journalctl -p err -n 50 --no-pager", "Letzte Fehler im Journal"),
     ("apt list --upgradable 2>/dev/null", "Verfügbare Aktualisierungen"),
     ("uname -a", "Kernel und Architektur"),
+    # Die beiden schreiben -- deshalb stehen sie am Ende und sagen es im Namen.
+    # Eine Vorlage fuellt nur das Eingabefeld; abgeschickt wird von Hand.
+    (
+        'echo "Encryption=AlwaysOff" | sudo tee -a /etc/vnc/config.d/common.custom',
+        "VNC: Streckenverschlüsselung abschalten (schreibt)",
+    ),
+    (
+        "sudo systemctl restart vncserver-x11-serviced",
+        "VNC-Dienst neu starten (schreibt)",
+    ),
 )
 
 

apps/tesm/src/tesm/cli.py

@@ -82,6 +82,14 @@ def cmd_create_admin(args: argparse.Namespace) -> int:
             gruppe = rbac.funktionsgruppe_anlegen(
                 conn, PERMISSIONS, FUNKTIONEN_VOLLZUGRIFF
             )
+            # Liegt sie im Papierkorb, kommt sie zurueck. Sonst haette dieser
+            # Aufruf nichts bewirkt: das Konto waere in einer geloeschten
+            # Gruppe -- und das faellt genau dann auf, wenn man es am
+            # wenigsten gebrauchen kann.
+            conn.execute(
+                "UPDATE groups SET deleted_at=NULL WHERE id=? AND deleted_at IS NOT NULL",
+                (gruppe,),
+            )
             conn.execute(
                 "INSERT OR IGNORE INTO user_groups (user_id, group_id) VALUES (?,?)",
                 (user_id, gruppe),
@@ -211,7 +219,7 @@ def cmd_restore_signatures(_args: argparse.Namespace) -> int:
 
 def cmd_check_now(_args: argparse.Namespace) -> int:
     app, extension = _app_and_core()
-    from .services import inventory, monitor
+    from .services import inventory, monitor, vnc
 
     with app.app_context():
         allowed = extension.license is None or extension.license.feature_allowed(
@@ -222,6 +230,7 @@ def cmd_check_now(_args: argparse.Namespace) -> int:
             live=extension.registry["live_log"],
             keystore=extension.keystore,
             license_allows_auto_restart=allowed,
+            vnc_port=vnc.port_aus_einstellungen(extension),
         )
     print(
         f"{report.checked} geprüft, {report.online} online, {report.offline} offline, "

apps/tesm/src/tesm/permissions.py

@@ -78,6 +78,26 @@ DEVICE_RESTART_RPC = Resource(
     action_hints={A.EXECUTE: "Neustartauftrag anlegen (wie 'shutdown /m')."},
 )
 
+#: Bildschirmzugriff ist **nicht** dasselbe wie die Konsole, auch wenn beides
+#: "auf das Geraet" fuehrt: hier sieht jemand den Bildschirm, wie er ist --
+#: samt dem, was ein Mensch dort gerade offen hat. Das ist eine eigene
+#: Entscheidung, also eine eigene Zeile. Sie wird **niemandem** mitgegeben:
+#: keine Migration setzt sie, auch nicht bei denen, die schon eine Konsole
+#: oeffnen duerfen. Wer sie haben soll, bekommt sie in der Matrix -- einmal,
+#: sichtbar, mit Zeile im Aenderungsprotokoll.
+DEVICE_VNC = Resource(
+    key="device_vnc",
+    parent="devices",
+    label="Clients: Bildschirm (VNC)",
+    actions=(A.READ, A.EXECUTE),
+    hint="Verbindungsdatei bzw. vnc://-Adresse für den Bildschirm des Clients",
+    action_hints={
+        A.READ: "Den Knopf sehen, wo ein VNC-Server antwortet.",
+        A.EXECUTE: "Verbindung öffnen. Die Datei enthält nur Ziel und Namen – "
+        "was beim Verbinden verlangt wird, entscheidet der VNC-Server auf dem Gerät.",
+    },
+)
+
 #: Die Client-Konsole lief unter ``maintenance.execute`` mit -- demselben Recht
 #: wie die Paketaktualisierung. Eine Sitzung auf einem Geraet ist aber etwas
 #: anderes als ein Auftrag, den der Server abarbeitet: hier tippt ein Mensch.
@@ -167,6 +187,24 @@ SERVICING_TOOL = Resource(
     action_hints={A.EXECUTE: "Installation auslösen."},
 )
 
+#: Ein freier Befehl auf vielen Geraeten ist das Maechtigste, was diese
+#: Anwendung kann -- und das Einzige, dessen Wirkung sie nicht kennt. Deshalb
+#: ein eigenes Recht, das niemand nebenbei bekommt: wer Pakete aktualisieren
+#: oder neu starten darf, tut etwas Umrissenes; wer hier etwas eintippt, tut
+#: alles, was ein Konto auf dem Geraet tun kann. Die Vorlagen nehmen dem den
+#: Alltag ab, nicht die Verantwortung.
+SERVICING_COMMAND = Resource(
+    key="servicing_command",
+    label="Befehl auf mehreren Geräten",
+    actions=(A.READ, A.EXECUTE),
+    hint="Eine Befehlszeile über SSH, auf allen ausgewählten Clients",
+    action_hints={
+        A.READ: "Die Karte sehen – und damit, was zuletzt lief.",
+        A.EXECUTE: "Befehl absenden. Verlangt eine frische Passwortbestätigung; "
+        "jeder Auftrag steht mit seinem Wortlaut im Änderungsprotokoll.",
+    },
+)
+
 #: Die Wartungsseite zeigt alle drei Aufgaben. Sie oeffnet, wer **eine** davon
 #: sehen darf -- und zeigt dann nur die. Als Konstante, damit die vier Routen
 #: dieselbe Antwort geben; einzeln getippt liefen sie irgendwann auseinander.
@@ -174,6 +212,7 @@ SERVICING_PAGE: tuple[str, ...] = (
     "servicing_update.read",
     "servicing_reboot.read",
     "servicing_tool.read",
+    "servicing_command.read",
 )
 
 #: Elf Funktionen hingen an ``dhcp.edit``: Grundeinstellungen, Subnetze,
@@ -316,6 +355,7 @@ MONITORING_AREA = Area(
         DEVICE_RESTART_SSH,
         DEVICE_RESTART_RPC,
         DEVICE_CONSOLE,
+        DEVICE_VNC,
         SWITCHES,
         SWITCH_CONSOLE,
         HOSTKEYS,
@@ -333,7 +373,7 @@ MAINTENANCE_AREA = Area(
     icon="wrench",
     hint="Paketpflege und Neustarts. Ohne diesen Zugang bleibt der Bereich "
     "verborgen – auch wenn einzelne Rechte darunter gesetzt sind.",
-    resources=(SERVICING_UPDATE, SERVICING_REBOOT, SERVICING_TOOL),
+    resources=(SERVICING_UPDATE, SERVICING_REBOOT, SERVICING_COMMAND, SERVICING_TOOL),
 )
 
 NETWORK_AREA = Area(

apps/tesm/src/tesm/schema.py

@@ -490,6 +490,68 @@ def eingefrorene_vorlagen(
     return vorlagen
 
 
+# Version 10 ----------------------------------------------------------------
+#
+# Wo antwortet ein VNC-Server? Die Frage beantwortet der Ueberwachungs-
+# durchlauf mit, der ohnehin jedes Geraet anfasst -- einmal je Intervall statt
+# einmal je Seitenaufruf. Die Kacheln der Statusuebersicht koennen den Knopf
+# damit zeigen, ohne dass das Rendern der Seite ein Dutzend Verbindungen
+# aufbaut.
+V10 = """
+ALTER TABLE device_status ADD COLUMN vnc_open INTEGER NOT NULL DEFAULT 0;
+ALTER TABLE device_status ADD COLUMN vnc_checked_at TEXT;
+"""
+
+
+# Version 11 ----------------------------------------------------------------
+#
+# Nicht nur *ob* dort ein VNC-Server antwortet, sondern *wohin* gefragt wurde.
+# Die Kacheln der Statusuebersicht verlinken die Verbindung unmittelbar
+# (vnc://hap02); das Ziel dafuer aus dem Namen neu herzuleiten hiesse, bei
+# jedem Seitenaufbau je Kachel eine Namensaufloesung zu versuchen. Der
+# Durchlauf hat sie ohnehin schon gemacht -- also schreibt er sie hin.
+V11 = """
+ALTER TABLE device_status ADD COLUMN vnc_target TEXT NOT NULL DEFAULT '';
+"""
+
+
+# Version 12 ----------------------------------------------------------------
+#
+# Welche Sicherheitsverfahren der VNC-Server angeboten hat. Daran entscheidet
+# sich, ob eine Sitzung im Browser ueberhaupt zustande kommen kann -- und wer
+# das erst erfaehrt, wenn er vor einer schwarzen Flaeche sitzt, sucht den
+# Fehler bei uns.
+V12 = """
+ALTER TABLE device_status ADD COLUMN vnc_types TEXT NOT NULL DEFAULT '';
+"""
+
+
+# Version 13 ----------------------------------------------------------------
+#
+# Die Absage eines VNC-Servers und der Zeitpunkt der Verfahrensmessung. Beide
+# gehoeren getrennt vom Ueberwachungsdurchlauf gefuehrt: der fragt nur noch,
+# ob der Port annimmt (eine abgebrochene Protokollverhandlung sperrt bei
+# RealVNC die eigene Adresse aus), die Verfahren misst die Seite -- und auch
+# die nur, wenn die letzte Messung alt ist.
+V13 = """
+ALTER TABLE device_status ADD COLUMN vnc_reason TEXT NOT NULL DEFAULT '';
+ALTER TABLE device_status ADD COLUMN vnc_types_at TEXT;
+"""
+
+
+# Version 14 ----------------------------------------------------------------
+#
+# Welches Anmeldeverfahren zuletzt wirklich getragen hat. Der Server nennt
+# seine Reihenfolge, und die gilt -- aber wenn seine erste Wahl schon einmal
+# abgerissen ist und eine andere zum Bild gefuehrt hat, ist das ein Befund.
+# Ihn zu vergessen kostet bei jedem Oeffnen einen Fehlversuch, und RealVNC
+# laesst sich mit der Absage Zeit: gemessen zwei bis drei Minuten, bis das
+# Bild stand.
+V14 = """
+ALTER TABLE device_status ADD COLUMN vnc_method INTEGER NOT NULL DEFAULT 0;
+"""
+
+
 def uebergang_standardgruppen(conn) -> None:  # type: ignore[no-untyped-def]
     """Aus sieben Standardgruppen werden drei -- ohne jemandem etwas wegzunehmen.
 
@@ -532,4 +594,9 @@ TESM_MIGRATIONS: tuple[Migration, ...] = (
     Migration(version=7, name="signaturverzeichnis", sql=V7, fn=uebernehme_signaturen),
     Migration(version=8, name="funktionsgruppe-fuer-admins", fn=uebergang_funktionsgruppe),
     Migration(version=9, name="standardgruppen-aufraeumen", fn=uebergang_standardgruppen),
+    Migration(version=10, name="vnc-erreichbarkeit", sql=V10),
+    Migration(version=11, name="vnc-ziel", sql=V11),
+    Migration(version=12, name="vnc-verfahren", sql=V12),
+    Migration(version=13, name="vnc-absage", sql=V13),
+    Migration(version=14, name="vnc-verfahren-das-traegt", sql=V14),
 )

apps/tesm/src/tesm/services/inventory.py

@@ -542,7 +542,11 @@ def list_devices(
                  WHERE k.host = d.ip AND k.port = d.ssh_port) AS host_key_known,
                COALESCE(st.state,'unknown') AS state, st.latency_ms, st.last_check_at,
                st.last_ok_at, st.last_change_at, st.last_restart_at, st.restart_count,
-               st.fail_count
+               st.fail_count, COALESCE(st.vnc_open, 0) AS vnc_open, st.vnc_checked_at,
+               COALESCE(st.vnc_target, '') AS vnc_target,
+               COALESCE(st.vnc_types, '') AS vnc_types,
+               COALESCE(st.vnc_reason, '') AS vnc_reason, st.vnc_types_at,
+               COALESCE(st.vnc_method, 0) AS vnc_method
           FROM devices d
           LEFT JOIN switches s ON s.id = d.switch_id AND s.deleted_at IS NULL
           LEFT JOIN credentials c ON c.id = d.credential_id AND c.deleted_at IS NULL

apps/tesm/src/tesm/services/maintenance.py

@@ -44,6 +44,51 @@ logger = logging.getLogger(__name__)
 
 JOB_KIND_UPDATE = "maintenance.update"
 JOB_KIND_REBOOT = "maintenance.reboot"
+JOB_KIND_COMMAND = "maintenance.command"
+
+#: Vorlagen fuer den Massenbefehl: Name, Befehl, Erklaerung.
+#:
+#: ``{sudo}`` wird zur Laufzeit ersetzt -- mit ``sudo -n``, wo es ohne Passwort
+#: geht, sonst mit ``sudo -S`` und dem hinterlegten Passwort ueber stdin. Wer
+#: eine Vorlage waehlt, sieht den Befehl im Feld und kann ihn aendern: eine
+#: Vorlage ist ein Vorschlag, kein Automat.
+BEFEHLSVORLAGEN: tuple[tuple[str, str, str], ...] = (
+    (
+        "VNC: Streckenverschlüsselung abschalten",
+        'echo "Encryption=AlwaysOff" | {sudo} tee -a /etc/vnc/config.d/common.custom',
+        "Danach bietet RealVNC auch RA2ne und „ohne Authentifizierung“ an – nur damit "
+        "kommt eine Sitzung im Browser zustande. Die Strecke ist dann unverschlüsselt; "
+        "im Netz zwischen Server und Gerät ist sie es ohnehin.",
+    ),
+    (
+        "VNC-Dienst neu starten",
+        "{sudo} systemctl restart vncserver-x11-serviced",
+        "Räumt auch eine Sperre ab, die der Server nach zu vielen abgebrochenen "
+        "Verbindungsversuchen gesetzt hat.",
+    ),
+    (
+        "VNC: aktuelle Einstellungen zeigen",
+        "cat /etc/vnc/config.d/common.custom 2>/dev/null || echo '(keine eigene Konfiguration)'",
+        "Liest nur – gut, um vor dem Ändern zu sehen, was schon dasteht.",
+    ),
+    (
+        "Zeit und Zeitzone",
+        "timedatectl",
+        "Liest nur.",
+    ),
+    (
+        "Belegung der Dateisysteme",
+        "df -h",
+        "Liest nur.",
+    ),
+)
+
+#: Was in einer Befehlszeile nichts zu suchen hat. Nicht als Schutz vor einem
+#: Menschen mit diesem Recht -- er darf ohnehin alles, was sein Konto auf dem
+#: Geraet darf --, sondern gegen Unfaelle: ein Zeilenumbruch aus der
+#: Zwischenablage macht aus einem Befehl unbemerkt zwei.
+VERBOTENE_ZEICHEN = ("\n", "\r", "\x00")
+MAX_BEFEHLSLAENGE = 500
 
 MAX_OUTPUT_LINES = 400
 CONNECT_TIMEOUT = 25
@@ -231,7 +276,10 @@ def update_job(
 
 
 def list_jobs(
-    conn: sqlite3.Connection, *, kinds: tuple[str, ...] = (JOB_KIND_UPDATE, JOB_KIND_REBOOT), limit: int = 60
+    conn: sqlite3.Connection,
+    *,
+    kinds: tuple[str, ...] = (JOB_KIND_UPDATE, JOB_KIND_REBOOT, JOB_KIND_COMMAND),
+    limit: int = 60,
 ) -> list[dict[str, Any]]:
     placeholders = ",".join("?" * len(kinds))
     return Database.all(
@@ -447,6 +495,149 @@ def run_update(
         )
 
 
+#: So lange gilt ein Auftrag als "eben fertig geworden" und schickt seine
+#: letzten Zeilen noch mit. Ohne das verschwaende die Ausgabe genau in dem
+#: Augenblick, in dem sie interessant wird: wenn der Befehl durch ist.
+EBEN_FERTIG_SEKUNDEN = 120
+
+#: So viele Zeilen gehen ins Mitlesen. Genug, um zu sehen, was gerade
+#: passiert; wenig genug, dass eine Abfrage alle zwei Sekunden nichts kostet.
+MITLESEN_ZEILEN = 40
+
+
+def letzte_zeilen(ausgabe: str, anzahl: int = MITLESEN_ZEILEN) -> str:
+    """Das Ende einer Ausgabe -- das ist der Teil, der gerade entsteht."""
+    zeilen = [zeile for zeile in ausgabe.splitlines() if zeile.strip()]
+    return "\n".join(zeilen[-anzahl:])
+
+
+def eben_fertig(job: dict[str, Any], sekunden: int = EBEN_FERTIG_SEKUNDEN) -> bool:
+    """Ist dieser Auftrag gerade eben fertig geworden?"""
+    if job.get("state") in {"pending", "running"}:
+        return True
+    stempel = str(job.get("finished_at") or job.get("updated_at") or "")
+    if not stempel:
+        return False
+    try:
+        moment = datetime.fromisoformat(stempel)
+    except ValueError:
+        return False
+    if moment.tzinfo is None:
+        moment = moment.replace(tzinfo=timezone.utc)
+    return (datetime.now(timezone.utc) - moment).total_seconds() < sekunden
+
+
+def befehl_pruefen(befehl: str) -> str:
+    """Gibt den bereinigten Befehl zurueck -- oder wirft mit Klartext.
+
+    Eine eigene Funktion, weil genau diese Frage sich pruefen lassen muss,
+    ohne ein Geraet zu brauchen.
+    """
+    sauber = (befehl or "").strip()
+    if not sauber:
+        raise ValueError("Es wurde kein Befehl eingegeben.")
+    if len(sauber) > MAX_BEFEHLSLAENGE:
+        raise ValueError(
+            f"Der Befehl ist zu lang (mehr als {MAX_BEFEHLSLAENGE} Zeichen). "
+            "Für längere Abläufe ist ein Skript auf dem Gerät der bessere Weg."
+        )
+    for zeichen in VERBOTENE_ZEICHEN:
+        if zeichen in sauber:
+            raise ValueError(
+                "Der Befehl enthält einen Zeilenumbruch. Hier läuft genau eine "
+                "Befehlszeile – alles danach würde stillschweigend mitlaufen."
+            )
+    return sauber
+
+
+def run_command(
+    database: Any,
+    *,
+    job_id: str,
+    device: dict[str, Any],
+    username: str,
+    password: str,
+    befehl: str,
+    timeout: int,
+) -> None:
+    """Fuehrt **eine** Befehlszeile auf einem Geraet aus. Eigener Thread.
+
+    Bewusst ohne Deutung des Ergebnisses: was der Befehl tut, weiss der
+    Mensch, der ihn geschrieben hat. Festgehalten wird, was zurueckkam und mit
+    welchem Rueckgabewert -- mehr kann ein Werkzeug hier nicht beitragen, und
+    weniger waere zu wenig.
+    """
+    name = str(device.get("name") or device.get("ip"))
+
+    def emit(line: str) -> None:
+        stamp = datetime.now().strftime("%H:%M:%S")
+        update_job(database, job_id, append_output=f"{stamp}  {line}\n")
+
+    update_job(
+        database, job_id, state="running", progress=5, message="Verbindung wird aufgebaut"
+    )
+    try:
+        with database.session() as conn:
+            transport = open_transport(
+                conn,
+                host=str(device["ip"]),
+                port=int(device.get("ssh_port") or 22),
+                username=username,
+                password=password,
+            )
+    except SshError as exc:
+        emit(f"FEHLER: {exc}")
+        update_job(database, job_id, state="failed", message=str(exc), finished=True)
+        return
+
+    status = 1
+    try:
+        sudo, sudo_stdin = _sudo_mode(transport, password, emit)
+        # Nur wer {sudo} benutzt, bekommt es auch: ein Befehl ohne diese Marke
+        # laeuft als der angemeldete Benutzer, und das ist die richtige
+        # Vorgabe -- Rechte holt man sich hier ausdruecklich.
+        ausgefuehrt = befehl.replace("{sudo}", sudo) if "{sudo}" in befehl else befehl
+        emit(f"$ {ausgefuehrt}")
+        update_job(database, job_id, progress=40, message="Befehl läuft")
+        status = _run_remote_command(
+            transport,
+            ausgefuehrt,
+            timeout=timeout,
+            on_line=emit,
+            stdin_text=sudo_stdin if "{sudo}" in befehl else "",
+        )
+    except Exception as exc:  # noqa: BLE001 - der Auftrag soll das Ergebnis tragen
+        emit(f"FEHLER: {exc}")
+    finally:
+        try:
+            transport.close()
+        except Exception:  # noqa: BLE001
+            pass
+
+    emit(COMPLETION_MARKER)
+    update_job(
+        database,
+        job_id,
+        state="succeeded" if status == 0 else "failed",
+        progress=100,
+        message=(
+            "Befehl ausgeführt."
+            if status == 0
+            else f"Der Befehl endete mit Rückgabewert {status}."
+        ),
+        finished=True,
+    )
+    with database.session() as conn, database.transaction(conn):
+        audit.log(
+            conn,
+            actor="system",
+            action="maintenance.command_finished",
+            target=name,
+            detail=f"Rückgabewert {status}",
+            severity="notice" if status == 0 else "warning",
+        )
+
+
 def _reboot_windows(
     database: Any,
     *,

apps/tesm/src/tesm/services/monitor.py

@@ -507,6 +507,48 @@ class SweepReport:
     duration_ms: int = 0
 
 
+def merke_vnc(conn: sqlite3.Connection, device_id: int, offen: bool, ziel: str = "") -> None:
+    """Haelt fest, ob dort ein VNC-Server antwortet -- und unter welchem Ziel.
+
+    Das Ziel gehoert dazu, weil die Statusuebersicht die Verbindung unmittelbar
+    verlinkt. Es aus dem Namen neu herzuleiten hiesse, je Kachel und
+    Seitenaufbau eine Namensaufloesung zu versuchen; hier steht es einmal
+    geschrieben, von dem, der ohnehin gefragt hat.
+
+    Die Anmeldeverfahren bleiben unberuehrt: sie kommen aus einer anderen
+    Quelle (:func:`merke_verfahren`) und haetten hier nur den Wert "nicht
+    gefragt" -- der wuerde eine gute Messung ueberschreiben.
+    """
+    conn.execute(
+        "UPDATE device_status SET vnc_open=?, vnc_checked_at=?, vnc_target=? WHERE device_id=?",
+        (1 if offen else 0, _now(), ziel, device_id),
+    )
+
+
+def merke_verfahren(
+    conn: sqlite3.Connection, device_id: int, verfahren: tuple[int, ...], absage: str = ""
+) -> None:
+    """Haelt fest, wie sich der VNC-Server authentifizieren will.
+
+    Mit Zeitstempel, denn diese Messung kostet eine angefangene
+    Protokollverhandlung -- und die soll sich nicht bei jedem Seitenaufbau
+    wiederholen.
+    """
+    conn.execute(
+        "UPDATE device_status SET vnc_types=?, vnc_reason=?, vnc_types_at=? WHERE device_id=?",
+        (",".join(str(v) for v in verfahren), absage, _now(), device_id),
+    )
+
+
+def merke_verfahren_das_traegt(
+    conn: sqlite3.Connection, device_id: int, verfahren: int
+) -> None:
+    """Haelt fest, womit die letzte Sitzung wirklich zustande kam."""
+    conn.execute(
+        "UPDATE device_status SET vnc_method=? WHERE device_id=?", (int(verfahren), device_id)
+    )
+
+
 def run_sweep(
     *,
     database: Any,
@@ -514,13 +556,25 @@ def run_sweep(
     keystore: Any,
     license_allows_auto_restart: bool,
     failures_before_restart: int = DEFAULT_FAILURES_BEFORE_RESTART,
+    vnc_port: int = 0,
 ) -> SweepReport:
     """Ein vollstaendiger Ueberwachungsdurchlauf.
 
     Die Pruefungen laufen parallel (I/O-gebunden), die Datenbankschreibvorgaenge
     danach in **einer** Transaktion -- so gibt es keinen Schreib-Wettlauf und
     keine halb geschriebenen Durchlaeufe.
+
+    ``vnc_port`` (0 = aus) haengt eine zweite, sehr kurze Frage an jedes
+    erreichbare Geraet: nimmt dort ein VNC-Server Verbindungen an? Sie gehoert
+    hierher und nicht in den Seitenaufbau -- einmal je Intervall statt einmal
+    je Aufruf, und nur fuer Geraete, die ohnehin gerade antworten.
+
+    **Nur die Frage nach dem Port**, kein Wort Protokoll: ein RealVNC Server
+    zaehlt abgebrochene Verhandlungen und sperrt die Adresse eine Weile aus.
+    Welche Anmeldeverfahren er anbietet, misst die Seite, die es braucht.
     """
+    from . import vnc as vnc_dienst  # spaet: vnc benutzt tcp_reachable von hier
+
     report = SweepReport()
     started = time.monotonic()
 
@@ -531,15 +585,37 @@ def run_sweep(
         report.duration_ms = int((time.monotonic() - started) * 1000)
         return report
 
+    def pruefen(
+        device: dict[str, Any],
+    ) -> tuple[dict[str, Any], PingResult, vnc_dienst.Zugang | None]:
+        ergebnis = ping(str(device["ip"]))
+        if not vnc_port or not ergebnis.ok:
+            # Kein Ergebnis heisst "nicht gefragt" -- und laesst den zuletzt
+            # bekannten Stand stehen. Ein Geraet, das gerade neu startet, soll
+            # seinen Knopf nicht verlieren.
+            return device, ergebnis, None
+        try:
+            return device, ergebnis, vnc_dienst.zugang_kurz(device, port=vnc_port)
+        except Exception:  # noqa: BLE001
+            # Die Ueberwachung ist die Kernaufgabe, der Bildschirmzugriff eine
+            # Zugabe. Was hier schiefgeht -- ein Name, den der Resolver nicht
+            # verdaut, ein Netz, das seltsam antwortet --, darf niemals den
+            # ganzen Durchlauf kosten: sonst stuenden alle Geraete auf
+            # "unbekannt", und niemand brächte das mit VNC in Verbindung.
+            logger.warning("VNC-Pruefung fuer %s uebersprungen", device.get("name"), exc_info=True)
+            return device, ergebnis, None
+
     with ThreadPoolExecutor(max_workers=min(MAX_PARALLEL_CHECKS, len(devices))) as pool:
-        results = list(pool.map(lambda device: (device, ping(str(device["ip"]))), devices))
+        results = list(pool.map(pruefen, devices))
 
     restart_candidates: list[dict[str, Any]] = []
     with database.session() as conn:
         with database.transaction(conn):
-            for device, result in results:
+            for device, result, vnc_offen in results:
                 report.checked += 1
                 previous, current = record_status(conn, int(device["id"]), result)
+                if vnc_offen is not None:
+                    merke_vnc(conn, int(device["id"]), vnc_offen.erreichbar, vnc_offen.ziel)
                 if result.ok:
                     report.online += 1
                 else:

apps/tesm/src/tesm/services/vnc.py

@@ -0,0 +1,414 @@
+"""Bildschirmzugriff per VNC: Ziel bestimmen, Erreichbarkeit pruefen, Datei bauen.
+
+Auf den HAPs (Raspberry Pis) laeuft ein VNC-Server. TESM kennt von jedem
+Client Namen und Adresse -- daraus laesst sich die Verbindung erzeugen, statt
+sie in jedem Viewer von Hand zu pflegen.
+
+Zwei Wege, beide aus denselben zwei Angaben:
+
+* eine **Verbindungsdatei** (``.vnc``), wie der RealVNC Viewer sie schreibt.
+  Sie enthaelt genau drei Zeilen -- ``ConnMethod``, ``FriendlyName``, ``Host``
+  -- und **nichts weiter**. Jede zusaetzliche Angabe ist eine Gelegenheit,
+  etwas zu verlangen, das hier niemand verlangen soll: keine
+  Verschluesselungsvorgabe, keine Identitaetspruefung, kein Benutzername, kein
+  Passwortfeld. Was am Ende gefragt wird, entscheidet ohnehin der VNC-Server
+  auf dem Geraet; die Datei fragt von sich aus nichts.
+* eine **Adresse** (``vnc://host``) fuer den Fall, dass der Viewer als
+  Handler registriert ist -- ein Klick statt Herunterladen und Oeffnen.
+
+Der Zugang erscheint nur dort, wo wirklich ein VNC-Server antwortet
+(:func:`erreichbar`). Das ist der Unterschied zu einem Schalter am Geraet:
+niemand muss ihn pflegen, und er zeigt nie ins Leere.
+"""
+
+from __future__ import annotations
+
+import re
+import socket
+import time
+from dataclasses import dataclass
+from typing import Any, Mapping
+
+from .monitor import tcp_reachable
+
+#: Vorgabeport von VNC (Anzeige :0). Ueberschreibbar in den Einstellungen.
+STANDARD_PORT = 5900
+
+#: So kurz, dass die Detailseite es nicht merkt, und so lang, dass ein Geraet
+#: im selben Netz antworten kann. Gefragt wird ohnehin nur, wenn der Client
+#: gerade als erreichbar gilt.
+ZEITLIMIT = 0.6
+
+#: Ein Name, den ein Rechner aufloesen kann: Buchstaben, Ziffern, Bindestrich,
+#: Punkt als Trenner. "HAP 02" oder "Kamera Eingang" ist keiner -- dann bleibt
+#: die IP-Adresse, die im Datensatz ohnehin steht.
+HOSTNAME_RE = re.compile(r"^(?!-)[A-Za-z0-9-]{1,63}(?<!-)(\.(?!-)[A-Za-z0-9-]{1,63}(?<!-))*$")
+
+#: Zeilenende der Datei: CRLF. Der Viewer liest beides, aber die Datei landet
+#: auf einem Windows-Arbeitsplatz -- und dort soll sie in jedem Editor
+#: vernuenftig aussehen, wenn jemand nachsieht, was drinsteht.
+ZEILE = "\r\n"
+
+
+@dataclass(frozen=True, slots=True)
+class Zugang:
+    """Was die Detailseite ueber den Bildschirmzugriff eines Clients weiss."""
+
+    ziel: str
+    port: int
+    erreichbar: bool
+    #: Die Sicherheitsverfahren, die der Server angeboten hat (leer: nicht
+    #: gemessen). Daraus entsteht der Satz, warum eine Sitzung im Browser
+    #: gehen wird oder nicht.
+    verfahren: tuple[int, ...] = ()
+    #: Der Text, mit dem der Server die Verbindung abgelehnt hat -- er nennt
+    #: dann kein Verfahren, sondern eine 0 und einen Grund.
+    absage: str = ""
+    #: Das Verfahren, mit dem zuletzt wirklich eine Sitzung zustande kam
+    #: (0: noch keine). Damit faengt der naechste Versuch an.
+    bewaehrt: int = 0
+
+    @property
+    def browsertauglich(self) -> bool:
+        """Ist mindestens ein angebotenes Verfahren eines, das noVNC kann?"""
+        return bool(set(self.verfahren) & BROWSER_VERFAHREN)
+
+    @property
+    def hinderungsgrund(self) -> str:
+        """Warum eine Sitzung im Browser nicht zustande kaeme -- im Klartext."""
+        if not self.erreichbar:
+            return f"Auf {self.ziel}:{self.port} antwortet kein VNC-Server."
+        if self.absage:
+            return (
+                f"Der VNC-Server auf {self.ziel} weist die Verbindung ab: "
+                f"„{self.absage}“. Das ist seine Auskunft, nicht unsere – "
+                "typisch sind eine Sperre nach zu vielen Fehlversuchen "
+                "(RealVNC: BlacklistTimeout), eine Adressfilterung oder eine "
+                "belegte Sitzung."
+            )
+        if not self.verfahren:
+            return ""
+        if self.browsertauglich:
+            return ""
+        angeboten = ", ".join(verfahren_name(v) for v in self.verfahren)
+        return (
+            f"Der VNC-Server bietet nur {angeboten} an. Der Browser-Client kann "
+            "davon keines: herstellereigene Verfahren sind nicht offengelegt, "
+            "und RA2 (5) verschlüsselt die ganze Strecke mit einem Verfahren, "
+            "das er nicht mitbringt. Auf dem Gerät hilft eine Zeile: "
+            "Encryption=AlwaysOff (dann bietet der Server RA2ne an) oder "
+            "Authentication=VncAuth samt vncpasswd (dann das klassische "
+            "VNC-Passwort)."
+        )
+
+    @property
+    def adresse(self) -> str:
+        """``vnc://host`` -- den Standardport schreibt niemand dazu."""
+        if self.port == STANDARD_PORT:
+            return f"vnc://{self.ziel}"
+        return f"vnc://{self.ziel}:{self.port}"
+
+
+#: Aufloesungen, die wir schon einmal versucht haben: ``name -> (Zeit, Ergebnis)``.
+#:
+#: Nicht wegen der Geschwindigkeit -- ein arbeitender Resolver antwortet in
+#: Bruchteilen einer Millisekunde --, sondern wegen des Gegenteils: faellt der
+#: Nameserver aus, laeuft jede Abfrage in sein eigenes Zeitlimit. Ohne diesen
+#: Puffer haette das der Seitenaufbau ausgebadet, und zwar bei jedem Aufruf.
+_AUFLOESUNG: dict[str, tuple[float, bool]] = {}
+
+#: Fuenf Minuten. Lang genug, damit ein kaputter Resolver nicht jede Seite
+#: aufhaelt; kurz genug, dass ein neuer DNS-Eintrag nicht bis zum Neustart
+#: wartet.
+AUFLOESUNG_GILT = 300.0
+
+
+def aufloesbar(name: str) -> bool:
+    """Kennt der Resolver diesen Namen?"""
+    jetzt = time.monotonic()
+    gemerkt = _AUFLOESUNG.get(name)
+    if gemerkt is not None and jetzt - gemerkt[0] < AUFLOESUNG_GILT:
+        return gemerkt[1]
+    try:
+        socket.getaddrinfo(name, None)
+        ergebnis = True
+    except Exception:  # noqa: BLE001
+        # Nicht nur OSError: ein Name mit Sonderzeichen wirft UnicodeError,
+        # und der ist kein OSError. Aufloesbar ist er so oder so nicht.
+        ergebnis = False
+    _AUFLOESUNG[name] = (jetzt, ergebnis)
+    return ergebnis
+
+
+def ziel(device: Mapping[str, Any]) -> str:
+    """Der Name des Clients, sonst seine IP-Adresse.
+
+    Der Name ist die bessere Wahl, wo er gilt: er ueberlebt einen
+    Adresswechsel, und genau so stehen die gewachsenen Verbindungen im Viewer
+    (``Host=hap02``). Zwei Dinge muessen dafuer stimmen -- er muss als Hostname
+    **taugen** ("Kamera Eingang" tut es nicht) und er muss sich **aufloesen**
+    lassen. Sonst zeigte die Datei auf einen Namen, den der Arbeitsplatz nicht
+    kennt, und niemand saehe, woran es liegt; dann ist die Adresse richtig, die
+    ohnehin im Datensatz steht.
+
+    Loest der Name auf eine **andere** Adresse auf als die gespeicherte, gewinnt
+    trotzdem der Name: dann ist der Eintrag im Bestand veraltet, nicht das DNS.
+    """
+    name = str(device.get("name") or "").strip()
+    if name and HOSTNAME_RE.match(name) and aufloesbar(name):
+        return name.lower()
+    return str(device.get("ip") or "").strip()
+
+
+def erreichbar(host: str, port: int = STANDARD_PORT) -> bool:
+    """Nimmt auf diesem Host ein VNC-Server Verbindungen an?"""
+    if not host:
+        return False
+    return tcp_reachable(host, port, timeout=ZEITLIMIT)
+
+
+#: Was der Browser-Client (noVNC 1.6) aushandeln kann. Aus dessen
+#: ``_isSupportedSecurityType`` uebernommen -- steht hier, weil die Oberflaeche
+#: **vor** dem Verbinden sagen koennen soll, ob es klappen wird.
+BROWSER_VERFAHREN: frozenset[int] = frozenset({1, 2, 6, 16, 19, 22, 30, 113})
+
+#: Die Namen dazu. Was nicht drinsteht, ist herstellereigen -- die Nummern
+#: 7 bis 15 gehoeren RealVNC, 3 und 4 ebenfalls.
+VERFAHREN_NAMEN: dict[int, str] = {
+    1: "ohne Authentifizierung",
+    2: "VNC-Passwort",
+    5: "RA2 (RSA-AES, verschlüsselt)",
+    6: "RA2ne (RSA-AES, unverschlüsselt)",
+    16: "Tight",
+    18: "TLS",
+    19: "VeNCrypt",
+    22: "xvp",
+    30: "Apple ARD",
+    113: "MS-Logon II",
+}
+
+
+def verfahren_name(nummer: int) -> str:
+    """Lesbarer Name eines Sicherheitsverfahrens."""
+    if nummer in VERFAHREN_NAMEN:
+        return f"{nummer} ({VERFAHREN_NAMEN[nummer]})"
+    if 3 <= nummer <= 15:
+        return f"{nummer} (RealVNC-eigen)"
+    return str(nummer)
+
+
+def _absage(sock: Any) -> str:
+    """Der Grund, den ein Server einer abgelehnten Verbindung mitgibt.
+
+    Auf eine 0 -- ob als Anzahl (ab 3.7) oder als bestimmtes Verfahren (3.3) --
+    folgt eine Laenge und ein Text. Genau dieser Satz ist die Auskunft, die
+    sonst niemand bekommt: "zu viele Fehlversuche", "Verbindung von dieser
+    Adresse nicht erlaubt", "kein gemeinsames Verfahren". Ohne ihn steht da
+    nur, dass es nicht geht.
+    """
+    try:
+        roh = sock.recv(4)
+        if len(roh) < 4:
+            return ""
+        laenge = int.from_bytes(roh, "big")
+        if not 0 < laenge <= 1024:
+            return ""
+        text = b""
+        while len(text) < laenge:
+            stueck = sock.recv(laenge - len(text))
+            if not stueck:
+                break
+            text += stueck
+        return text.decode("utf-8", "replace").strip()
+    except OSError:
+        return ""
+
+
+def sicherheitsverfahren(
+    host: str, port: int = STANDARD_PORT
+) -> tuple[str, tuple[int, ...], str]:
+    """Fragt den Server, **wie** er sich authentifizieren will.
+
+    Der Anfang einer VNC-Verbindung ist fuer jeden Server derselbe: er nennt
+    seine Protokollfassung, der Client die seine, dann kommt die Liste der
+    Sicherheitsverfahren. Weiter gehen wir nicht -- die Verbindung wird sofort
+    geschlossen, es wird nichts angemeldet und nichts geraten.
+
+    Das ist die Angabe, an der eine Bildschirmsitzung im Browser scheitert oder
+    gelingt, und sie hier zu messen ist der Unterschied zwischen einer
+    schwarzen Flaeche und dem Satz "dieser Server bietet nur Verfahren an, die
+    der Browser nicht kennt".
+
+    Gibt ``(Fassung, Verfahren, Absage)`` zurueck. Die Absage ist der Text, den
+    ein Server mitschickt, wenn er die Verbindung **ablehnt** -- er meldet dann
+    kein Verfahren, sondern eine 0 und einen Grund. Bei einem Fehler
+    ``("", (), "")``.
+    """
+    import socket
+
+    try:
+        with socket.create_connection((host, int(port)), timeout=ZEITLIMIT) as sock:
+            sock.settimeout(ZEITLIMIT)
+            gruss = sock.recv(12)
+            if not gruss.startswith(b"RFB "):
+                return "", (), ""
+            fassung = gruss[4:11].decode("ascii", "replace")
+            # Wir antworten mit 3.8 -- der Fassung, die auch der Browser
+            # spricht. Ein Server, der mehr kann, faellt darauf zurueck und
+            # nennt trotzdem seine Verfahren.
+            # Antworten wird mit *seiner* Fassung, hoechstens 3.8. Wer einem
+            # 3.3-Server mit 3.8 antwortet, bekommt keine Liste, sondern eine
+            # 32-Bit-Zahl -- und liest sie als "keine Verfahren".
+            eigene = "003.003" if fassung == "003.003" else "003.008"
+            sock.sendall(b"RFB " + eigene.encode("ascii") + bytes([10]))
+
+            if eigene == "003.003":
+                # RFB 3.3: der Server bestimmt allein und schickt eine
+                # 32-Bit-Zahl. Das ist kein Sonderfall aus der Vorzeit --
+                # RealVNC faellt darauf zurueck, sobald keine Anmeldung
+                # verlangt wird.
+                rohwert = b""
+                while len(rohwert) < 4:
+                    stueck = sock.recv(4 - len(rohwert))
+                    if not stueck:
+                        break
+                    rohwert += stueck
+                if len(rohwert) < 4:
+                    return fassung, (), ""
+                bestimmt = int.from_bytes(rohwert, "big")
+                if bestimmt == 0:
+                    return fassung, (), _absage(sock)
+                return fassung, (bestimmt,), ""
+
+            anzahl = sock.recv(1)
+            if not anzahl:
+                return fassung, (), ""
+            wie_viele = anzahl[0]
+            if wie_viele == 0:
+                # Null heisst: der Server lehnt ab und schickt den Grund.
+                return fassung, (), _absage(sock)
+            liste = b""
+            while len(liste) < wie_viele:
+                stueck = sock.recv(wie_viele - len(liste))
+                if not stueck:
+                    break
+                liste += stueck
+            return fassung, tuple(liste), ""
+    except OSError:
+        return "", (), ""
+
+
+def zugang_kurz(device: Mapping[str, Any], *, port: int = STANDARD_PORT) -> Zugang:
+    """Nur die Frage, ob dort jemand annimmt -- ohne ein Wort Protokoll.
+
+    Das ist die Fassung fuer den Ueberwachungsdurchlauf. Er laeuft alle paar
+    Minuten ueber jedes Geraet, und eine angefangene und sofort wieder
+    abgebrochene Protokollverhandlung ist nicht nur unhoeflich: ein RealVNC
+    Server zaehlt abgebrochene Versuche und sperrt die Adresse eine Weile aus
+    (``BlacklistTimeout``). Eine Ueberwachung, die ihr eigenes Ziel aussperrt,
+    waere ein schoener Eigentor -- also fragt sie nur, ob der Port annimmt.
+
+    Welche Anmeldeverfahren der Server kann, misst erst die Seite, die es
+    wirklich braucht -- und auch die nicht oefter als noetig.
+    """
+    host = ziel(device)
+    return Zugang(ziel=host, port=port, erreichbar=erreichbar(host, port))
+
+
+def zugang(device: Mapping[str, Any], *, port: int = STANDARD_PORT, pruefen: bool = True) -> Zugang:
+    """Ziel, Erreichbarkeit und Verfahren in einem Stueck -- so nimmt es die Vorlage."""
+    host = ziel(device)
+    if not pruefen:
+        return Zugang(ziel=host, port=port, erreichbar=False)
+    fassung, verfahren, absage = sicherheitsverfahren(host, port)
+    return Zugang(
+        ziel=host,
+        port=port,
+        erreichbar=bool(fassung),
+        verfahren=verfahren,
+        absage=absage,
+    )
+
+
+def zugang_gemerkt(device: Mapping[str, Any], *, port: int = STANDARD_PORT) -> Zugang:
+    """Der Zugang, wie er in der Datenbank steht -- **ohne** das Geraet zu fragen.
+
+    Frueher hat diese Funktion selbst gemessen, wenn die letzte Messung alt war.
+    Das ist gestrichen, und zwar aus Erfahrung: jede Messung ist eine
+    angefangene und abgebrochene Protokollverhandlung, und ein RealVNC Server
+    zaehlt so etwas. Wer eine Bildschirmseite oeffnet, klopfte damit zweimal an
+    -- einmal zum Messen, einmal fuer die Sitzung --, und das zweite Klopfen
+    fiel dem ersten zum Opfer.
+
+    Jetzt beruehrt das Oeffnen einer Seite das Geraet gar nicht mehr. Die
+    Erreichbarkeit kommt aus dem Ueberwachungsdurchlauf (ein blosser
+    Verbindungsaufbau), die Anmeldeverfahren aus der letzten **ausdruecklichen**
+    Pruefung -- der Knopf dafuer steht auf der Seite und wird gedrueckt, wenn
+    etwas nicht geht.
+    """
+    gespeichert = str(device.get("vnc_types") or "")
+    return Zugang(
+        ziel=ziel(device),
+        port=port,
+        erreichbar=bool(device.get("vnc_open")),
+        verfahren=tuple(
+            int(teil) for teil in gespeichert.split(",") if teil.strip().isdigit()
+        ),
+        absage=str(device.get("vnc_reason") or ""),
+        bewaehrt=int(device.get("vnc_method") or 0),
+    )
+
+
+def verbindungsdatei(
+    device: Mapping[str, Any], *, port: int = STANDARD_PORT, warnung_aus: bool = False
+) -> str:
+    """Der Inhalt der ``.vnc``-Datei -- drei Zeilen, keine vierte.
+
+    ``ConnMethod=tcp`` ist die direkte Verbindung (nicht ueber den Cloud-Dienst
+    von RealVNC), ``FriendlyName`` der Name, den der Viewer anzeigt, ``Host``
+    das Ziel. Ein abweichender Port gehoert in dieser Datei an den Host, mit
+    Doppelpunkt -- einen eigenen Schluessel dafuer gibt es nicht.
+
+    ``warnung_aus`` haengt eine vierte Zeile an: ``WarnUnencrypted=False``. Sie
+    betrifft **den Viewer**, nicht den Server -- er zeigt sonst bei jeder
+    Verbindung zu einem Geraet ohne Streckenverschluesselung einen roten
+    Hinweis, den man wegklicken muss. Wer ``Encryption=AlwaysOff`` auf dem
+    Geraet gesetzt hat (damit der Browser ueberhaupt verbinden kann), sieht
+    diesen Hinweis fortan bei jedem Start. Er bleibt in der Vorgabe stehen:
+    eine unverschluesselte Strecke soll man einmal bewusst hinnehmen, nicht
+    stillschweigend. Abschaltbar unter Verwaltung -> System.
+    """
+    host = ziel(device)
+    if port != STANDARD_PORT:
+        host = f"{host}:{port}"
+    zeilen = [
+        "ConnMethod=tcp",
+        f"FriendlyName={str(device.get('name') or host).strip()}",
+        f"Host={host}",
+    ]
+    if warnung_aus:
+        zeilen.append("WarnUnencrypted=False")
+    return ZEILE.join(zeilen) + ZEILE
+
+
+def dateiname(device: Mapping[str, Any]) -> str:
+    """``HAP02.vnc`` -- aus dem Namen, auf Unbedenkliches beschraenkt.
+
+    Auch der Punkt faellt weg, nicht nur der Schraegstrich: ein Geraetename ist
+    Freitext, und ein Dateiname, in dem ".." vorkommen kann, ist eine Frage,
+    die man sich gar nicht erst stellen muss.
+    """
+    name = re.sub(r"[^A-Za-z0-9_-]+", "-", str(device.get("name") or "client")).strip("-")
+    return f"{name or 'client'}.vnc"
+
+
+def port_aus_einstellungen(extension: Any) -> int:
+    """Der eingestellte Port -- oder 0, wenn der Zugang abgeschaltet ist.
+
+    Nimmt die Erweiterung statt der Verbindung, weil der Ueberwachungsprozess
+    ausserhalb eines Anfragekontextes laeuft und seine eigene Sitzung oeffnet.
+    """
+    with extension.database.session() as conn:
+        if not extension.settings.get(conn, "vnc_enabled"):
+            return 0
+        return int(extension.settings.get(conn, "vnc_port") or STANDARD_PORT)

apps/tesm/src/tesm/settings_spec.py

@@ -45,6 +45,49 @@ TESM_SETTINGS: tuple[SettingSpec, ...] = (
         "IP-Adressen, keine Switch-Zuordnung, keine Verwaltungsfunktionen.",
         section="monitoring",
     ),
+    # -- Bildschirmzugriff (VNC) -------------------------------------------- #
+    SettingSpec(
+        "vnc_enabled",
+        True,
+        "bool",
+        "Bildschirmzugriff (VNC) anbieten",
+        hint="Der Überwachungsdurchlauf fragt bei jedem erreichbaren Client kurz, ob "
+        "auf diesem Port ein VNC-Server antwortet; nur dort erscheint der Knopf. "
+        "Sehen darf ihn trotzdem nur, wer das Recht dafür hat.",
+        section="monitoring",
+    ),
+    SettingSpec(
+        "vnc_port",
+        5900,
+        "int",
+        "VNC-Port",
+        hint="5900 ist Anzeige :0 – die Vorgabe eines Raspberry Pi.",
+        section="monitoring",
+        minimum=1,
+        maximum=65535,
+    ),
+    SettingSpec(
+        "vnc_idle_timeout",
+        300,
+        "int",
+        "Bildschirmsitzung bei Untätigkeit trennen nach (Sekunden)",
+        hint="Gezählt wird, wenn in **keine** Richtung mehr etwas fließt: der Bildschirm "
+        "ändert sich nicht und es kommt keine Eingabe. Eine Sitzung, die jemand offen "
+        "vergisst, hält sonst die Verbindung zum Gerät. 0 schaltet die Trennung ab.",
+        section="monitoring",
+        minimum=0,
+        maximum=86400,
+    ),
+    SettingSpec(
+        "vnc_warn_unencrypted_off",
+        False,
+        "bool",
+        "Warnung des Viewers vor unverschlüsselter Verbindung unterdrücken",
+        hint="Setzt WarnUnencrypted=False in die Verbindungsdatei. Betrifft nur den "
+        "RealVNC Viewer auf dem Arbeitsplatz, nicht die Verbindung selbst: die bleibt "
+        "unverschlüsselt, wenn das Gerät es so anbietet.",
+        section="monitoring",
+    ),
     # -- DHCP --------------------------------------------------------------- #
     SettingSpec("dhcp_domain", "local", "str", "Domainname", section="dhcp"),
     SettingSpec(

apps/tesm/src/tesm/templates/tesm/_dashboard_tiles.html

@@ -84,21 +84,6 @@
                     <a class="btn btn--sm btn--ghost" href="{{ url_for('devices.detail', device_id=tile.id) }}">
                       Details
                     </a>
-                    {% if tile.restart_methods %}
-                      {% set method = tile.restart_methods[0] %}
-                      <form method="post" data-no-guard
-                            action="{{ url_for('devices.restart_device', device_id=tile.id) }}">
-                        <input type="hidden" name="{{ csrf_field_name }}" value="{{ csrf_token() }}">
-                        <input type="hidden" name="method" value="{{ method.key }}">
-                        <button class="btn btn--sm" type="submit" title="{{ method.hint }}"
-                                data-busy-label="Startet ..."
-                                data-confirm="{{ tile.name }} über {{ method.label }} neu starten? {{ method.hint }}"
-                                data-confirm-title="Neustart" data-confirm-ok="Neu starten"
-                                data-confirm-style="primary">
-                          {{ icon('power', size=14) }} {{ method.label }}
-                        </button>
-                      </form>
-                    {% endif %}
                     {% if current_user.has('devices.write') and tile.state == 'disabled' %}
                       <form method="post" action="{{ url_for('devices.toggle_active', device_id=tile.id) }}"
                             data-no-guard>
@@ -108,6 +93,54 @@
                       </form>
                     {% endif %}
                   </div>
+                  {# Die beiden Eingriffe stehen unten und immer an derselben
+                     Stelle: links der Bildschirm, rechts der Neustart. Wer
+                     eine Reihe Kacheln abarbeitet, trifft denselben Knopf,
+                     ohne hinzusehen -- und verwechselt ihn nicht mit dem
+                     anderen. #}
+                  {% if tile.vnc or tile.restart_methods %}
+                    <div class="tile__actions">
+                      {% if tile.vnc %}
+                        {# Die Sitzung laeuft in TESM selbst: ein Klick, kein
+                           Viewer auf dem Arbeitsplatz, keine Datei.
+
+                           Mit frischer Passwortbestätigung öffnet sie sich hier
+                           im Fenster -- man bleibt bei der Übersicht und sieht
+                           die anderen Geräte weiter. Ohne sie führt der Knopf
+                           auf die Geräteseite, wo danach gefragt wird. #}
+                        {% if vnc_fenster %}
+                          <button class="btn btn--sm" type="button"
+                                  data-vnc-oeffnen="{{ tile.vnc_quelle }}"
+                                  data-vnc-name="{{ tile.name }}"
+                                  title="Bildschirm im Fenster öffnen">
+                            {{ icon('monitor', size=14) }} VNC
+                          </button>
+                        {% else %}
+                          <a class="btn btn--sm" href="{{ url_for('screen.screen', device_id=tile.id) }}"
+                             title="Bildschirm im Browser öffnen">
+                            {{ icon('monitor', size=14) }} VNC
+                          </a>
+                        {% endif %}
+                      {% else %}
+                        <span class="tile__spacer" aria-hidden="true"></span>
+                      {% endif %}
+                      {% if tile.restart_methods %}
+                        {% set method = tile.restart_methods[0] %}
+                        <form method="post" data-no-guard
+                              action="{{ url_for('devices.restart_device', device_id=tile.id) }}">
+                          <input type="hidden" name="{{ csrf_field_name }}" value="{{ csrf_token() }}">
+                          <input type="hidden" name="method" value="{{ method.key }}">
+                          <button class="btn btn--sm" type="submit" title="{{ method.hint }}"
+                                  data-busy-label="Startet ..."
+                                  data-confirm="{{ tile.name }} über {{ method.label }} neu starten? {{ method.hint }}"
+                                  data-confirm-title="Neustart" data-confirm-ok="Neu starten"
+                                  data-confirm-style="primary">
+                            {{ icon('power', size=14) }} {{ method.label }}
+                          </button>
+                        </form>
+                      {% endif %}
+                    </div>
+                  {% endif %}
                 {% endif %}
               </article>
             {% endfor %}

apps/tesm/src/tesm/templates/tesm/_vnc_flaeche.html

@@ -0,0 +1,42 @@
+{# Die Bildschirmfläche -- einmal geschrieben, an zwei Orten benutzt: auf der
+   Geräteseite und im Fenster der Statusübersicht.
+
+   Die Teile finden sich über `data-rolle`, nicht über Kennungen: im Fenster
+   gäbe es sie sonst zweimal auf derselben Seite, und die zweite wäre die, die
+   niemand findet. #}
+{% macro vnc_flaeche(quelle='') %}
+<div class="screen" {% if quelle %}data-sitzung="{{ quelle }}"{% endif %}>
+  <div data-rolle="leinwand" class="screen__canvas" hidden></div>
+</div>
+{% endmacro %}
+
+{% macro vnc_status() %}
+<div data-rolle="status" class="screen__status">Wird vorbereitet …</div>
+{% endmacro %}
+
+{% macro vnc_zugangsdaten() %}
+<form data-rolle="zugangsdaten" class="row row--tight" hidden onsubmit="return false">
+  <label class="field">
+    <span class="field__label">Benutzer</span>
+    <input class="input" type="text" data-rolle="benutzer" autocomplete="off">
+  </label>
+  <label class="field">
+    <span class="field__label">Passwort</span>
+    <input class="input" type="password" data-rolle="passwort" autocomplete="off">
+  </label>
+  <button class="btn btn--primary" type="button" data-rolle="anmelden">Anmelden</button>
+</form>
+{% endmacro %}
+
+{# Tasten, die der Arbeitsplatz selbst abfängt und die deshalb einen Knopf
+   brauchen: Strg+Alt+Entf schaltet der Browser gar nicht erst durch, Alt+F4
+   schlösse das Fenster hier statt das Fenster dort. #}
+{% macro vnc_tasten() %}
+<button class="btn btn--sm" type="button" data-rolle="taste-cad" hidden
+        title="Strg+Alt+Entf an das Gerät senden">Strg+Alt+Entf</button>
+<button class="btn btn--sm" type="button" data-rolle="taste-altf4" hidden
+        title="Alt+F4 an das Gerät senden – schließt dort das oberste Fenster">Alt+F4</button>
+<button class="btn btn--sm" type="button" data-rolle="taste-f5" hidden
+        title="F5 an das Gerät senden – der Browser des Arbeitsplatzes würde sonst diese Seite neu laden">F5</button>
+<button class="btn btn--sm" type="button" data-rolle="trennen" hidden>Trennen</button>
+{% endmacro %}

apps/tesm/src/tesm/templates/tesm/dashboard.html

@@ -1,5 +1,6 @@
 {% extends "tesm_core/base.html" %}
-{% from "tesm_core/macros.html" import search_box %}
+{% from "tesm_core/macros.html" import search_box, modal %}
+{% from "tesm/_vnc_flaeche.html" import vnc_flaeche, vnc_status, vnc_zugangsdaten, vnc_tasten %}
 
 {% block page_title %}Statusübersicht{% endblock %}
 {% block page_sub %}
@@ -19,4 +20,27 @@
      data-refresh-interval="20000">
   {% include "tesm/_dashboard_tiles.html" %}
 </div>
+
+{% if vnc_fenster %}
+  {# Ein Fenster für alle Kacheln: welches Gerät gemeint ist, bringt der Knopf
+     beim Öffnen mit. Ein Dialog je Kachel wäre dieselbe Sache dutzendfach im
+     Quelltext -- und dutzendfach eine Sitzung, die niemand aufräumt. #}
+  {% call modal('vnc-fenster', 'Bildschirm', 'Tastatur und Maus gehen an das Gerät. Die Zwischenablage bleibt getrennt.', 'wide') %}
+    <div class="modal__body stack" data-rolle="behaelter">
+      <div class="row row--tight">
+        <strong data-rolle="titel" class="flex-1"></strong>
+        {{ vnc_tasten() }}
+      </div>
+      {{ vnc_status() }}
+      {{ vnc_zugangsdaten() }}
+      {{ vnc_flaeche() }}
+    </div>
+  {% endcall %}
+{% endif %}
+{% endblock %}
+
+{% block scripts %}
+{% if vnc_fenster %}
+  <script type="module" src="{{ asset_url('js/screen.js') }}" nonce="{{ csp_nonce }}"></script>
+{% endif %}
 {% endblock %}

apps/tesm/src/tesm/templates/tesm/device_detail.html

@@ -16,6 +16,12 @@
       {{ icon('terminal', size=15) }} Konsole
     </a>
   {% endif %}
+  {% if vnc and vnc.erreichbar %}
+    <a class="btn btn--sm" href="{{ url_for('screen.screen', device_id=device.id) }}"
+       title="Bildschirm im Browser öffnen">
+      {{ icon('monitor', size=15) }} VNC
+    </a>
+  {% endif %}
   {% if restart_methods %}
     {% for method in restart_methods %}
       <form method="post" style="display:inline"
@@ -225,6 +231,29 @@
         <dt>Kategorie</dt><dd>{{ device.category or '&ndash;' | safe }}</dd>
         <dt>Standort</dt><dd>{{ device.location or '&ndash;' | safe }}</dd>
         <dt>Zugangsdaten</dt><dd>{{ device.credential_name or 'keine' }}</dd>
+        {% if vnc %}
+          <dt>Bildschirm (VNC)</dt>
+          <dd>
+            {% if vnc.erreichbar %}
+              <span class="mono">{{ vnc.ziel }}:{{ vnc.port }}</span>
+              <div class="fs-xs faint">
+                <a href="{{ url_for('screen.screen', device_id=device.id) }}">
+                  Im Browser öffnen</a> – oder die
+                <a href="{{ url_for('devices.vnc_connection', device_id=device.id) }}">
+                  Verbindungsdatei</a> für einen Viewer auf dem Arbeitsplatz; sie
+                enthält nur Ziel und Namen.
+                {% if vnc.hinderungsgrund %}
+                  <div class="mt-1">{{ vnc.hinderungsgrund }}</div>
+                {% endif %}
+              </div>
+            {% else %}
+              <span class="faint">
+                kein VNC-Server auf {{ vnc.ziel }}:{{ vnc.port }}
+                {%- if device.state != 'online' %} (Client antwortet gerade nicht){% endif %}
+              </span>
+            {% endif %}
+          </dd>
+        {% endif %}
         <dt>Automatischer Neustart</dt><dd>{{ device.auto_restart | yes_no }}</dd>
         <dt>Angelegt</dt><dd>{{ device.created_at | dt }}</dd>
         <dt>Geändert</dt>

apps/tesm/src/tesm/templates/tesm/fileshare.html

@@ -242,8 +242,7 @@
          data-viewer-pdflib="{{ asset_url('vendor/pdflib/pdf-lib.min.js') }}"
          data-viewer-konto="{{ current_user.username }}"
          data-viewer-zeuge="{{ '1' if signature_witness else '0' }}"
-         data-viewer-zeit="{{ serverzeit }}"
-         data-viewer-ordnerliste="{{ verzeichnisse | tojson }}">
+         data-viewer-zeit="{{ serverzeit }}">
       <div class="viewer">
         <div class="viewer__stage" data-viewer-bildbuehne hidden>
           <img class="viewer__img" alt="" data-viewer-bild>

apps/tesm/src/tesm/templates/tesm/maintenance.html

@@ -47,6 +47,48 @@ Druckerfreigabe. Der PoE-Neustart ist davon getrennt: er schaltet den Switch-Por
 
 <form method="post" id="maintenance-form" action="{{ url_for('maintenance.start_update') }}">
   <input type="hidden" name="{{ csrf_field_name }}" value="{{ csrf_token() }}">
+
+  {% if current_user.has('servicing_command.read') %}
+    <section class="card">
+      <div class="card__header">
+        <div class="flex-1">
+          <div class="card__title">{{ icon('terminal', size=17) }} Massenbefehl</div>
+          <div class="card__sub">
+            Eine Befehlszeile über SSH, auf allen unten ausgewählten Clients – jeder als
+            eigener Auftrag mit eigener Ausgabe. <strong>{{ '{sudo}' }}</strong> im Befehl
+            wird ersetzt: mit <code>sudo -n</code>, wo es ohne Passwort geht, sonst mit dem
+            hinterlegten Passwort über stdin. Ohne diese Marke läuft der Befehl als das
+            angemeldete Konto.
+          </div>
+        </div>
+      </div>
+      <div class="card__body stack">
+        <label class="field">
+          <span class="field__label">Vorlage</span>
+          <select class="select" id="befehlsvorlage">
+            <option value="">– eigene Eingabe –</option>
+            {% for name, befehl, erklaerung in befehlsvorlagen %}
+              <option value="{{ befehl }}" data-erklaerung="{{ erklaerung }}">{{ name }}</option>
+            {% endfor %}
+          </select>
+          <span class="field__hint" id="befehlserklaerung">
+            Eine Vorlage füllt nur das Feld darunter – abgeschickt wird von Hand.
+          </span>
+        </label>
+        <label class="field">
+          <span class="field__label">Befehl</span>
+          <input class="input mono" type="text" name="befehl" id="befehl"
+                 maxlength="500" autocomplete="off"
+                 placeholder='echo "Encryption=AlwaysOff" | {sudo} tee -a /etc/vnc/config.d/common.custom'
+                 {% if not current_user.has('servicing_command.execute') %}disabled{% endif %}>
+          <span class="field__hint">
+            Genau eine Zeile. Was der Befehl bewirkt, weiß der, der ihn schreibt – TESM
+            führt ihn aus und hält fest, was zurückkam.
+          </span>
+        </label>
+      </div>
+    </section>
+  {% endif %}
   <section class="card">
     <div class="table-toolbar">
       <label class="check">
@@ -54,6 +96,14 @@ Druckerfreigabe. Der PoE-Neustart ist davon getrennt: er schaltet den Switch-Por
         <span>Alle auswählen</span>
       </label>
       <span class="table-toolbar__spacer"></span>
+      {% if current_user.has('servicing_command.execute') %}
+        <button class="btn btn--sm" type="submit"
+                formaction="{{ url_for('maintenance.start_command') }}"
+                data-confirm="Den eingetragenen Befehl auf allen ausgewählten Geräten ausführen? Was er bewirkt, entscheidet er selbst – TESM führt ihn nur aus."
+                data-confirm-title="Befehl senden" data-confirm-ok="Senden" data-confirm-style="danger">
+          {{ icon('terminal', size=15) }} Befehl senden
+        </button>
+      {% endif %}
       {% if current_user.has('servicing_update.execute') %}
         <button class="btn btn--sm btn--primary" type="submit"
                 formaction="{{ url_for('maintenance.start_update') }}"
@@ -95,9 +145,19 @@ Druckerfreigabe. Der PoE-Neustart ist davon getrennt: er schaltet den Switch-Por
                   <span class="sr-only">{{ device.name }} auswählen</span>
                 </label>
               </td>
-              <td class="fw-600">{{ device.name }}</td>
+              <td class="fw-600">
+                {# Mitlesen, ohne die Seite zu verlassen -- so war es in der
+                   Fassung 1.2.8, und es fehlte seither. Die Zeile darunter
+                   klappt auf, sobald für dieses Gerät etwas läuft. #}
+                <button class="btn btn--ghost btn--sm" type="button"
+                        data-ausgabe-schalter="{{ device.name }}"
+                        title="Ausgabe dieses Geräts mitlesen">
+                  {{ icon('chevron-right', size=13) }}
+                </button>
+                {{ device.name }}
+              </td>
               <td class="mono fs-sm">{{ device.ip }}</td>
-              <td>
+              <td data-zustand="{{ device.id }}">
                 {% if device.state == 'online' %}{{ pill('online', 'online') }}
                 {% elif device.state == 'offline' %}{{ pill('offline', 'offline') }}
                 {% else %}{{ pill('unbekannt', 'warning') }}{% endif %}
@@ -129,6 +189,11 @@ Druckerfreigabe. Der PoE-Neustart ist davon getrennt: er schaltet den Switch-Por
                 {% endif %}
               </td>
             </tr>
+            <tr data-ausgabe-zeile="{{ device.name }}" hidden>
+              <td colspan="7" class="p-0">
+                <pre class="job-output" data-ausgabe="{{ device.name }}">Noch keine Ausgabe.</pre>
+              </td>
+            </tr>
           {% endfor %}
         </tbody>
       </table>
@@ -161,13 +226,13 @@ Druckerfreigabe. Der PoE-Neustart ist davon getrennt: er schaltet den Switch-Por
         <thead><tr><th>Gestartet</th><th>Gerät</th><th>Art</th><th>Zustand</th><th>Fortschritt</th><th>Meldung</th></tr></thead>
         <tbody>
           {% for job in jobs %}
-            <tr>
+            <tr data-auftrag="{{ job.id }}">
               <td class="fs-sm nowrap">{{ job.created_at | dt }}</td>
               <td class="fs-sm fw-600">
                 <a href="{{ url_for('maintenance.job_detail', job_id=job.id) }}">{{ job.subject }}</a>
               </td>
               <td class="fs-sm">{{ 'Aktualisierung' if job.kind.endswith('update') else 'Neustart' }}</td>
-              <td>
+              <td data-auftrag-zustand>
                 {% if job.state == 'succeeded' %}{{ pill('erfolgreich', 'online') }}
                 {% elif job.state == 'failed' %}{{ pill('fehlgeschlagen', 'danger') }}
                 {% elif job.state == 'running' %}{{ pill('läuft', 'info') }}
@@ -175,11 +240,12 @@ Druckerfreigabe. Der PoE-Neustart ist davon getrennt: er schaltet den Switch-Por
                 {% else %}{{ pill('wartet', '') }}{% endif %}
               </td>
               <td style="min-width:120px">
-                <div class="progress {{ 'progress--success' if job.state == 'succeeded' else ('progress--danger' if job.state == 'failed' else '') }}">
+                <div class="progress {{ 'progress--success' if job.state == 'succeeded' else ('progress--danger' if job.state == 'failed' else '') }}"
+                     data-auftrag-balken>
                   <div class="progress__bar" style="width: {{ job.progress }}%"></div>
                 </div>
               </td>
-              <td class="fs-xs muted">{{ job.message }}</td>
+              <td class="fs-xs muted" data-auftrag-meldung>{{ job.message }}</td>
             </tr>
           {% endfor %}
         </tbody>
@@ -193,6 +259,18 @@ Druckerfreigabe. Der PoE-Neustart ist davon getrennt: er schaltet den Switch-Por
 
 {% block scripts %}
 <script type="module" nonce="{{ csp_nonce }}">
+  // Eine Vorlage füllt das Feld und erklärt sich -- abgeschickt wird von Hand.
+  const vorlage = document.getElementById("befehlsvorlage");
+  const befehl = document.getElementById("befehl");
+  const erklaerung = document.getElementById("befehlserklaerung");
+  vorlage?.addEventListener("change", () => {
+    const gewaehlt = vorlage.selectedOptions[0];
+    if (vorlage.value) befehl.value = vorlage.value;
+    erklaerung.textContent =
+      gewaehlt?.dataset.erklaerung ||
+      "Eine Vorlage füllt nur das Feld darunter – abgeschickt wird von Hand.";
+  });
+
   // Auswahl beim Laden bewusst zurücksetzen: Browser stellen den Checked-Zustand
   // sonst aus dem Verlauf wieder her – und dann wird bei "Neustarten"
   // versehentlich das falsche Gerät erwischt.
@@ -205,14 +283,113 @@ Druckerfreigabe. Der PoE-Neustart ist davon getrennt: er schaltet den Switch-Por
          .forEach((box) => (box.checked = all.checked));
   });
 
-  // Auftragsliste nachladen, solange etwas läuft.
+  // Mitlesen: die Zeile unter dem Gerät zeigt, was dort gerade passiert.
+  //
+  // Vorher lud diese Seite sich alle zwei Sekunden komplett neu, solange etwas
+  // lief -- das verwarf jede Auswahl, jeden Tastendruck im Befehlsfeld und
+  // sprang nach oben. Jetzt kommen nur die letzten Zeilen, und die Seite
+  // bleibt stehen.
+  const schalter = Array.from(document.querySelectorAll("[data-ausgabe-schalter]"));
+  const offen = new Set();
+  schalter.forEach((knopf) => {
+    knopf.addEventListener("click", () => {
+      const name = knopf.dataset.ausgabeSchalter;
+      const zeile = document.querySelector(`[data-ausgabe-zeile="${CSS.escape(name)}"]`);
+      if (!zeile) return;
+      zeile.hidden = !zeile.hidden;
+      if (zeile.hidden) offen.delete(name);
+      else offen.add(name);
+    });
+  });
+
+  function zeigen(name, text) {
+    const feld = document.querySelector(`[data-ausgabe="${CSS.escape(name)}"]`);
+    const zeile = document.querySelector(`[data-ausgabe-zeile="${CSS.escape(name)}"]`);
+    if (!feld || !zeile) return;
+    const unten = feld.scrollTop + feld.clientHeight >= feld.scrollHeight - 24;
+    feld.textContent = text || "Noch keine Ausgabe.";
+    if (unten) feld.scrollTop = feld.scrollHeight;
+    // Was läuft, klappt von selbst auf -- wer zusieht, will nicht erst suchen.
+    if (text && zeile.hidden && !offen.has(name)) zeile.hidden = false;
+  }
+
+  // Zustand, Fortschritt und Meldung eines Auftrags nachziehen.
+  //
+  // Vorher lud die Seite sich dafür komplett neu, sobald der letzte Auftrag
+  // durch war -- und riss damit genau das weg, was man lesen wollte: die
+  // Ausgabe stand da, dann sprang die Seite, und danach war sie leer.
+  const ZUSTAENDE = {
+    succeeded: ["erfolgreich", "pill--online", "progress--success"],
+    failed: ["fehlgeschlagen", "pill--danger", "progress--danger"],
+    running: ["läuft", "pill--info", ""],
+    unknown: ["unklar", "pill--warning", ""],
+    pending: ["wartet", "", ""],
+  };
+
+  function auftragZeigen(job) {
+    const zeile = document.querySelector(`[data-auftrag="${CSS.escape(job.id)}"]`);
+    if (!zeile) return false;
+    const [text, pillenKlasse, balkenKlasse] = ZUSTAENDE[job.state] || ZUSTAENDE.pending;
+    const pille = zeile.querySelector("[data-auftrag-zustand] .pill");
+    if (pille && pille.textContent.trim() !== text) {
+      pille.textContent = text;
+      pille.className = `pill ${pillenKlasse}`.trim();
+    }
+    const balken = zeile.querySelector("[data-auftrag-balken]");
+    if (balken) {
+      balken.className = `progress ${balkenKlasse}`.trim();
+      const inner = balken.querySelector(".progress__bar");
+      if (inner) inner.style.width = `${job.progress || 0}%`;
+    }
+    const meldung = zeile.querySelector("[data-auftrag-meldung]");
+    if (meldung && meldung.textContent.trim() !== (job.message || "")) {
+      meldung.textContent = job.message || "";
+    }
+    return true;
+  }
+
+  let neueAuftraege = false;
   async function poll() {
+    let weiter = 10000;
     try {
-      const state = await window.tesm.api("{{ url_for('maintenance.status') }}");
-      if (state.running) window.setTimeout(() => location.reload(), state.poll_ms);
+      const state = await window.tesm.api("{{ url_for('maintenance.status') }}", { auto: true });
+      weiter = state.poll_ms || 10000;
+      state.jobs.forEach((job) => {
+        if (job.output) zeigen(job.subject, job.output);
+        // Ein Auftrag, der in der Tabelle noch gar nicht steht, ist neu --
+        // dafür braucht es die Seite einmal frisch, aber erst, wenn nichts
+        // mehr läuft.
+        if (!auftragZeigen(job)) neueAuftraege = true;
+      });
+      // Erreichbarkeit mitziehen -- sonst steht die Seite mit dem Stand ihres
+      // Aufbaus da, und wer nach einem Neustart auf die Rückkehr wartet, sieht
+      // "unbekannt", bis er von Hand neu lädt.
+      (state.devices || []).forEach((geraet) => {
+        const zelle = document.querySelector(`[data-zustand="${geraet.id}"]`);
+        if (!zelle) return;
+        const [text, art] =
+          geraet.state === "online"
+            ? ["online", "pill--online"]
+            : geraet.state === "offline"
+              ? ["offline", "pill--offline"]
+              : ["unbekannt", "pill--warning"];
+        const pille = zelle.querySelector(".pill");
+        if (pille && pille.textContent.trim() !== text) {
+          pille.textContent = text;
+          pille.className = `pill ${art}`;
+        }
+      });
+      // Neu laden nur, wenn Aufträge dazugekommen sind, die in der Tabelle
+      // fehlen -- und auch dann erst, wenn nichts mehr läuft. Wer zusieht,
+      // soll nicht mitten im Lesen weggerissen werden.
+      if (neueAuftraege && !state.running) {
+        window.setTimeout(() => location.reload(), 8000);
+        neueAuftraege = false;
+      }
     } catch {
       /* stumm bleiben – die Seite ist auch ohne Aktualisierung nutzbar */
     }
+    window.setTimeout(poll, weiter);
   }
   poll();
 </script>

apps/tesm/src/tesm/templates/tesm/screen.html

@@ -0,0 +1,87 @@
+{% extends "tesm_core/base.html" %}
+{% from "tesm_core/macros.html" import alert, pill %}
+{% from "tesm/_vnc_flaeche.html" import vnc_flaeche, vnc_status, vnc_zugangsdaten, vnc_tasten %}
+
+{% block page_title %}Bildschirm: {{ device.name }}{% endblock %}
+{% block page_sub %}{{ zugang.ziel }}:{{ zugang.port }}{% endblock %}
+
+{% block breadcrumb %}
+<nav class="breadcrumb">
+  <span><a href="{{ url_for('devices.overview') }}">Clients</a></span>
+  <span><a href="{{ url_for('devices.detail', device_id=device.id) }}">{{ device.name }}</a></span>
+  <span>Bildschirm</span>
+</nav>
+{% endblock %}
+
+{% block content %}
+<div class="stack">
+  {% if zugang.hinderungsgrund %}
+    {{ alert(zugang.hinderungsgrund, 'warning') }}
+  {% endif %}
+
+  <section class="card">
+    <div class="card__header">
+      <div class="flex-1">
+        <div class="card__title">
+          {{ icon('monitor', size=17) }} {{ device.name }}
+          {% if zugang.absage %}{{ pill('Verbindung abgelehnt', 'warning') }}
+          {% elif zugang.verfahren %}
+            {% if zugang.browsertauglich %}{{ pill('Browser-Sitzung möglich', 'online') }}
+            {% else %}{{ pill('Verfahren nicht unterstützt', 'warning') }}{% endif %}
+          {% endif %}
+        </div>
+        <div class="card__sub">
+          Tastatur und Maus gehen an das Gerät, sobald das Bild steht. Die Zwischenablage
+          bleibt getrennt.
+          {% if zugang.verfahren %}
+            Zuletzt angebotene Anmeldeverfahren:
+            {% for nummer in zugang.verfahren %}{{ verfahren_name(nummer) }}{% if not loop.last %}, {% endif %}{% endfor %}.
+          {% else %}
+            Welche Anmeldeverfahren das Gerät anbietet, ist nicht bekannt – die Seite
+            fragt es nicht von sich aus.
+          {% endif %}
+        </div>
+      </div>
+      <div class="row row--tight">
+        {{ vnc_tasten() }}
+        {# Ausdrücklich ein Knopf und keine Nebenwirkung des Seitenaufbaus: die
+           Prüfung bricht eine Protokollverhandlung ab, und RealVNC zählt das.
+           Wer sucht, drückt ihn; wer nur arbeiten will, merkt nichts davon. #}
+        <form method="post" data-no-guard
+              action="{{ url_for('screen.probe', device_id=device.id) }}">
+          <input type="hidden" name="{{ csrf_field_name }}" value="{{ csrf_token() }}">
+          <button class="btn btn--sm btn--ghost" type="submit"
+                  title="Fragt das Gerät, welche Anmeldeverfahren es anbietet. Das ist
+eine eigene Verbindung, die abgebrochen wird – ein RealVNC Server zählt so etwas mit.
+Nicht unmittelbar vor dem Verbinden drücken.">
+            Verfahren prüfen
+          </button>
+        </form>
+        <a class="btn btn--sm btn--ghost"
+           href="{{ url_for('devices.vnc_connection', device_id=device.id) }}">
+          {{ icon('download', size=14) }} Verbindungsdatei
+        </a>
+      </div>
+    </div>
+
+    <div class="card__body stack" id="screen" data-sitzung="{{ quelle }}">
+      {{ vnc_status() }}
+      {{ vnc_zugangsdaten() }}
+      {{ vnc_flaeche() }}
+
+      {% if not darf_geheimnis and device.credential_id %}
+        <p class="fs-xs faint">
+          Für diesen Client sind Zugangsdaten hinterlegt. TESM gibt sie nur an Konten
+          heraus, die Geheimnisse ohnehin einsehen dürfen – sonst wären sie über den
+          Umweg einer Bildschirmsitzung für jeden lesbar, der sie öffnen darf. Tragen
+          Sie sie oben ein; sie werden nicht gespeichert.
+        </p>
+      {% endif %}
+    </div>
+  </section>
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script type="module" src="{{ asset_url('js/screen.js') }}" nonce="{{ csp_nonce }}"></script>
+{% endblock %}

apps/tesm/src/tesm/templates/tesm/settings_system.html

@@ -106,6 +106,39 @@
       </form>
     </section>
 
+    <section class="card">
+      <div class="card__header">
+        <div class="flex-1">
+          <div class="card__title">{{ icon('monitor', size=17) }} Bildschirm (VNC)</div>
+          <div class="card__sub">
+            Dieselben Regeln wie bei der Konsole: eigenes Recht, frische
+            Passwortbestätigung, getrennte Zwischenablage. Der Knopf erscheint nur, wo
+            ein VNC-Server antwortet – das prüft der Überwachungsdurchlauf mit.
+          </div>
+        </div>
+      </div>
+      <form method="post" action="{{ url_for('settings.system_save') }}">
+        <input type="hidden" name="{{ csrf_field_name }}" value="{{ csrf_token() }}">
+        <div class="card__body stack">
+          {{ checkbox('vnc_enabled', 'Bildschirmzugriff (VNC) anbieten',
+                      checked=values.vnc_enabled,
+                      hint_text=specs['vnc_enabled'].hint) }}
+          <div class="form-grid">
+            {{ field('vnc_port', 'VNC-Port', value=values.vnc_port, type='number',
+                     hint_text=specs['vnc_port'].hint) }}
+            {{ field('vnc_idle_timeout', 'Trennen bei Untätigkeit (Sekunden)',
+                     value=values.vnc_idle_timeout, type='number',
+                     hint_text=specs['vnc_idle_timeout'].hint) }}
+          </div>
+          {{ checkbox('vnc_warn_unencrypted_off',
+                      'Warnung des Viewers vor unverschlüsselter Verbindung unterdrücken',
+                      checked=values.vnc_warn_unencrypted_off,
+                      hint_text=specs['vnc_warn_unencrypted_off'].hint) }}
+        </div>
+        <div class="card__footer"><button class="btn btn--primary" type="submit">Speichern</button></div>
+      </form>
+    </section>
+
     <section class="card">
       <div class="card__header">
         <div class="flex-1">

apps/tesm/src/tesm/worker.py

@@ -22,7 +22,7 @@ from types import FrameType
 from tesm_core.extension import core
 
 from . import create_app
-from .services import inventory, monitor
+from .services import inventory, monitor, vnc
 
 logger = logging.getLogger("tesm.monitor")
 
@@ -82,6 +82,7 @@ class MonitorDaemon:
                         keystore=self.extension.keystore,
                         license_allows_auto_restart=self._auto_restart_allowed(),
                         failures_before_restart=self._failures_before_restart(),
+                        vnc_port=vnc.port_aus_einstellungen(self.extension),
                     )
                 logger.info(
                     "Durchlauf: %s geprüft, %s online, %s offline, %s Neustarts (%s erfolgreich), "

deploy/install.sh

@@ -39,6 +39,7 @@ HTTPS=0
 HTTPS_PORT=""
 DOMAIN=""
 ACME_EMAIL=""
+ERZWINGEN=0
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 REPO_DIR="$(cd "$SCRIPT_DIR/.." && pwd)"
@@ -49,6 +50,39 @@ warn()  { printf '%s !!%s %s\n' "$COLOR_WARN" "$COLOR_OFF" "$*"; }
 fail()  { printf '%s !!%s %s\n' "$COLOR_ERR" "$COLOR_OFF" "$*" >&2; exit 1; }
 info()  { printf '    %s\n' "$*"; }
 
+# -- Welche Fassung liegt hier, und welche laeuft schon? ---------------------
+#
+# Ein Installationslauf auf dieselbe Fassung macht nichts besser: er baut die
+# Python-Umgebung neu, kopiert dieselben Dateien, laedt nginx neu und startet
+# den Dienst -- mit der einzigen Wirkung, dass die Anwendung ein paar Sekunden
+# weg ist. Wer "update.sh" in einen Zeitplan haengt, bekaeme das taeglich.
+#
+# Verglichen wird die Anwendung **und** der Kern: die beiden Nummern laufen
+# absichtlich auseinander (siehe pyproject.toml), und eine Auslieferung kann
+# denselben Anwendungsstand mit neuem Kern enthalten.
+
+#: Die Nummer aus einer pyproject.toml. Die erste Zeile "version = ..." gilt --
+#: weitere Vorkommen stehen in Abhaengigkeiten und gehen uns nichts an.
+paket_version() {
+  sed -n 's/^version = "\([^"]*\)"/\1/p' "$1" 2>/dev/null | head -1
+}
+
+#: Was in dieser Installation laeuft: "<anwendung> <kern>", sonst leer.
+laufende_version() {
+  local wurzel="$1" modul="$2"
+  [[ -x "$wurzel/venv/bin/python" ]] || return 0
+  "$wurzel/venv/bin/python" -c \
+    "import $modul, tesm_core; print($modul.__version__, tesm_core.__version__)" \
+    2>/dev/null || true
+}
+
+#: Ist das, was hier liegt, schon installiert? Eine eigene Funktion, weil genau
+#: diese Frage sich pruefen lassen muss -- ohne einen Server aufzusetzen.
+gleiche_version() {
+  local laeuft="$1" liegt="$2"
+  [[ -n "$laeuft" && "$laeuft" == "$liegt" ]]
+}
+
 #: Merker fuer die EXIT-Falle. Zurueckgerollt wird nur, was auch gesichert ist.
 SICHERUNG_STEHT=0
 INSTALL_FERTIG=0
@@ -129,6 +163,7 @@ Verwendung: install.sh --app <tesm|tesm-license> [Optionen]
   --acme-email <a>    Kontaktadresse fuer Let's Encrypt.
   --skip-packages     Keine Systempakete installieren
   --yes               Rueckfragen ueberspringen
+  --force             Auch dann einrichten, wenn dieselbe Fassung schon laeuft
 USAGE
 }
 
@@ -144,6 +179,7 @@ while [[ $# -gt 0 ]]; do
     --acme-email) ACME_EMAIL="${2:?}"; shift 2 ;;
     --skip-packages) SKIP_PACKAGES=1; shift ;;
     --yes|-y) ASSUME_YES=1; shift ;;
+    --force) ERZWINGEN=1; shift ;;
     -h|--help) usage; exit 0 ;;
     *) fail "unbekannte Option: $1" ;;
   esac
@@ -261,6 +297,23 @@ FAILED_DIR="/srv/$NAME-failed-$TIMESTAMP"
 IS_UPDATE=0
 [[ -f "$ROOT/data/app.db" ]] && IS_UPDATE=1
 
+# Laeuft hier schon genau das, was hier liegt? Dann ist Schluss, bevor
+# irgendetwas angefasst wird -- und zwar mit Ausstiegscode 0: es ist nichts
+# schiefgegangen, es war nur nichts zu tun.
+MODUL="tesm"
+[[ "$APP" == "tesm-license" ]] && MODUL="tesm_license"
+LIEGT="$(paket_version "$REPO_DIR/apps/$APP/pyproject.toml") $(
+         paket_version "$REPO_DIR/packages/tesm-core/pyproject.toml")"
+LAEUFT="$(laufende_version "$ROOT" "$MODUL")"
+if [[ $IS_UPDATE -eq 1 && $ERZWINGEN -eq 0 ]] && gleiche_version "$LAEUFT" "$LIEGT"; then
+  step "Nichts zu tun"
+  info "$APP ${LIEGT%% *} (tesm-core ${LIEGT##* }) laeuft hier bereits."
+  info "Ein zweiter Durchlauf wuerde nur die Umgebung neu bauen und den"
+  info "Dienst neu starten -- ohne dass sich etwas aendert."
+  info "Trotzdem neu einrichten: --force"
+  exit 0
+fi
+
 step "TESM-Installation"
 info "Anwendung   : $APP${INSTANCE:+ (Instanz $INSTANCE)}"
 info "Ziel        : $ROOT"
@@ -278,6 +331,7 @@ else
   info "nginx       : Port $HTTP_PORT (nur HTTP)"
 fi
 info "Modus       : $([[ $IS_UPDATE -eq 1 ]] && echo Aktualisierung || echo Neuinstallation)"
+info "Fassung     : ${LIEGT%% *} (tesm-core ${LIEGT##* })${LAEUFT:+, bisher ${LAEUFT%% *}}"
 
 if [[ $ASSUME_YES -eq 0 ]]; then
   read -r -p "Fortfahren? [j/N] " answer

deploy/update.sh

@@ -33,6 +33,8 @@ EXTRA=("$@")
   echo "Verwendung: update.sh <tesm|tesm-license> [tag] [install.sh-Argumente ...]" >&2
   echo "Beispiel  : update.sh tesm latest --instance test" >&2
   echo "Ohne Rueckfrage: --yes anhaengen (ohne Terminal zwingend)." >&2
+  echo "Laeuft die Fassung schon, endet der Aufruf ohne Arbeit; --force setzt" >&2
+  echo "sie trotzdem neu auf." >&2
   exit 2
 }
 
@@ -173,6 +175,32 @@ release_holen() {
 
 release_holen
 
+# Schon installiert? Dann gar nicht erst fragen.
+#
+# Dieselbe Pruefung steht in install.sh und gilt dort endgueltig (sie
+# vergleicht auch den Kern). Hier steht sie noch einmal, weil ein Update, das
+# ohne Wirkung bleibt, gar nicht erst nach einer Bestaetigung fragen soll --
+# und weil "es lief durch" sonst wie eine Aktualisierung aussieht.
+ERZWINGEN=0
+for ((i = 0; i < ${#EXTRA[@]}; i++)); do
+  [[ "${EXTRA[i]}" == "--force" ]] && ERZWINGEN=1
+done
+INSTALLATION="$APP"
+for ((i = 0; i < ${#EXTRA[@]}; i++)); do
+  [[ "${EXTRA[i]}" == "--instance" ]] && INSTALLATION="$APP-${EXTRA[i + 1]:-}"
+done
+MODUL="tesm"
+[[ "$APP" == "tesm-license" ]] && MODUL="tesm_license"
+if [[ $ERZWINGEN -eq 0 && -x "/srv/$INSTALLATION/venv/bin/python" ]]; then
+  LAEUFT="$("/srv/$INSTALLATION/venv/bin/python" -c \
+            "import $MODUL; print($MODUL.__version__)" 2>/dev/null || true)"
+  if [[ -n "$LAEUFT" && "v$LAEUFT" == "$TAG" ]]; then
+    echo "==> $APP $LAEUFT laeuft hier bereits -- nichts zu tun."
+    echo "    Trotzdem neu einrichten: --force"
+    exit 0
+  fi
+fi
+
 # --yes darf auch hier stehen, nicht nur bei install.sh und upgrade.sh. Es
 # bleibt in EXTRA: install.sh bekommt es ohnehin, doppelt schadet nicht.
 OHNE_RUECKFRAGE=0

docs/BETRIEB.md

@@ -120,6 +120,14 @@ sudo bash /srv/tesm/deploy/update.sh tesm
 sudo bash /srv/tesm-license/deploy/update.sh tesm-license
 ```
 
+**Läuft die Fassung schon, passiert nichts.** `update.sh` vergleicht den
+aufgelösten Tag mit dem, was installiert ist, und endet mit `0`, bevor es eine
+Rückfrage stellt; `install.sh` prüft es noch einmal genauer (Anwendung **und**
+Kern) und bricht vor dem ersten Eingriff ab. Ein zweiter Lauf auf dieselbe
+Fassung baut sonst die Python-Umgebung neu, kopiert dieselben Dateien und
+startet den Dienst neu -- ein paar Sekunden Ausfall ohne jede Wirkung. Wer das
+trotzdem will (eine beschädigte Installation etwa), hängt `--force` an.
+
 Alles nach dem Tag geht unverändert an `install.sh` weiter -- das ist der Weg,
 eine **benannte Instanz** zu aktualisieren:
 

packages/tesm-core/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "tesm-core"
-version = "2.8.3"
+version = "2.8.15"
 description = "Gemeinsames Anwendungsgeruest (Auth, RBAC, Navigation, Design-System, Migrationen) fuer TESM und TESM-Lizenzserver"
 requires-python = ">=3.11"
 dependencies = [

packages/tesm-core/src/tesm_core/static/tesm_core/css/components.css

@@ -1208,6 +1208,12 @@
     --tile-accent: var(--text-faint);
     position: relative;
     overflow: hidden;
+    /* Spalte, damit die Fusszeile unten haengen kann (siehe .tile__actions).
+       Die Kacheln eines Rasters sind gleich hoch, ihr Inhalt aber nicht: mal
+       fehlt der Switch, mal der Standort. Ohne diesen Halt stuenden die Knoepfe
+       in jeder Kachel auf einer anderen Hoehe -- und das Auge sucht sie. */
+    display: flex;
+    flex-direction: column;
     padding: var(--sp-4);
     padding-left: calc(var(--sp-4) + 3px);
     border: 1px solid var(--border-subtle);
@@ -1269,6 +1275,73 @@
     color: var(--text-faint);
   }
 
+  /* Mitlesen auf der Wartungsseite: die Ausgabe eines laufenden Auftrags,
+     direkt unter seinem Geraet. Dunkler Grund wie in jeder Konsole -- was
+     dort steht, kommt von einer fremden Maschine und nicht aus dieser
+     Oberflaeche. */
+  .job-output {
+    margin: 0;
+    max-height: 220px;
+    overflow: auto;
+    padding: var(--sp-3) var(--sp-4);
+    background: #101216;
+    color: #d7dbe0;
+    font-family: var(--font-mono);
+    font-size: var(--fs-xs);
+    line-height: 1.5;
+    white-space: pre-wrap;
+    word-break: break-word;
+  }
+
+  /* ---------------------------------------------------------------------- #
+     Bildschirmsitzung (VNC)
+
+     Die Leinwand bekommt einen dunklen Grund -- unabhaengig vom Thema der
+     Oberflaeche: was darauf erscheint, ist der Bildschirm eines fremden
+     Geraets, und ein heller Rahmen darum laesst ihn wie einen Teil dieser
+     Seite aussehen. Er ist keiner.
+     ---------------------------------------------------------------------- */
+  .screen {
+    border: 1px solid var(--border-subtle);
+    border-radius: var(--r-md);
+    background: #101216;
+    overflow: hidden;
+  }
+  .screen__canvas {
+    width: 100%;
+    /* Genug Hoehe, dass ein Bildschirm erkennbar ist, ohne die Seite zu
+       sprengen; noVNC skaliert das Bild hinein. */
+    height: min(72vh, 760px);
+  }
+  /* Im Fenster ist weniger Platz -- und das Fenster soll nicht ueber den
+     Bildschirmrand hinauswachsen, nur weil das Geraet hochaufloesend ist. */
+  dialog.modal .screen__canvas { height: min(62vh, 620px); }
+  .screen__status {
+    font-size: var(--fs-sm);
+    color: var(--text-faint);
+  }
+  .screen__status--ok { color: var(--success); }
+  .screen__status--warnung { color: var(--warning); }
+  .screen__status--fehler { color: var(--danger); }
+
+  /* Fusszeile der Kachel: links der Bildschirm, rechts der Neustart.
+     ``margin-top: auto`` schiebt sie an den unteren Rand -- unabhaengig
+     davon, wie viel darueber steht. Die beiden Eingriffe stehen damit in
+     jeder Kachel an derselben Stelle, und der eine liegt nicht dort, wo eben
+     noch der andere war. */
+  .tile__actions {
+    display: flex;
+    align-items: center;
+    gap: var(--sp-2);
+    margin-top: auto;
+    padding-top: var(--sp-3);
+  }
+  .tile__actions > :last-child { margin-left: auto; }
+  /* Steht nur ein Knopf da, bleibt er links -- sonst spraenge der Neustart bei
+     einem Geraet ohne Bildschirmzugang an die Stelle, an der nebenan VNC
+     steht. Das Fuellstueck haelt den Platz. */
+  .tile__spacer { flex: 1 1 auto; }
+
   /* Marke und Karte stehen uebereinander im normalen Fluss. Vorher lag die
      Marke absolut positioniert hinter der Karte -- auf einem flachen Fenster
      schnitt die Karte mitten durch den Schriftzug und die Funktionszeile. Ein

packages/tesm-core/src/tesm_core/static/tesm_core/js/screen.js

@@ -0,0 +1,468 @@
+// Bildschirmsitzung im Browser: noVNC an die WebSocket-Strecke von TESM.
+//
+// Der Client handelt das RFB-Protokoll unmittelbar mit dem Geraet aus; TESM
+// reicht nur Bytes durch. Alles, was diese Datei tut, ist: verbinden, den
+// Zustand in Worte fassen und nach Zugangsdaten fragen, wenn keine hinterlegt
+// sind.
+//
+// Die Meldungen sind der eigentliche Wert. Eine Sitzung, die schwarz bleibt,
+// laesst offen, ob es an der Berechtigung, am Netz, am Server oder am
+// Passwort liegt -- und wer das nicht sieht, sucht den Fehler in TESM.
+//
+// **Ein Bauteil, zwei Orte.** Dieselbe Sitzung laeuft auf der Bildschirmseite
+// und im Fenster der Statusuebersicht. Sie holt alles, was sie braucht, aus
+// einer JSON-Auskunft des Servers -- damit gibt es keine zweite Fassung, die
+// man beim naechsten Fund vergisst nachzuziehen.
+
+import RFB from "../vendor/novnc/core/rfb.js";
+
+// Drei Eingriffe in private Methoden der mitgelieferten Bibliothek. Bewusst
+// hier und nicht in der Bibliothek selbst: eine neue Fassung von noVNC laesst
+// sich dann austauschen, ohne eine Aenderung nachzupflegen -- faellt eine
+// Methode weg, entfaellt nur die Auskunft, nicht die Sitzung.
+//
+// Zwei davon holen nur Auskunft (_fail, _socketClose). Der dritte greift in
+// die Wahl des Sicherheitsverfahrens ein -- aber erst, **nachdem** eines
+// nachweislich nicht getragen hat, oder weil eines schon einmal getragen hat.
+//
+// Die Vorgeschichte gehoert dazu, damit niemand den Schritt zurueckgeht: hier
+// stand einmal eine Vorauswahl, die ohne hinterlegte Zugangsdaten ein
+// Verfahren ohne Anmeldung erzwang, weil RealVNC RA2ne zuerst nennt. Das war
+// geraten und falsch. Was jetzt hier steht, ist das Gegenteil einer Vermutung:
+// ein Befund aus einer vorherigen Sitzung.
+const istUnterstuetzt = RFB.prototype._isSupportedSecurityType;
+
+//: Den *Grund* eines Fehlschlags kennt nur ``_fail`` -- das Ereignis
+//: "disconnect" traegt ihn nicht, und der Weg ueber die Protokollausgabe
+//: funktioniert nicht: die Bibliothek bindet ``console.error`` beim Laden,
+//: also bevor eine Seite etwas daran aendern koennte.
+let letzterGrund = "";
+const originalFail = RFB.prototype._fail;
+RFB.prototype._fail = function (details) {
+  letzterGrund = String(details);
+  return originalFail.call(this, details);
+};
+
+//: Und der Abschluss der Leitung selbst: der Schliesscode sagt, ob TESM
+//: abgewiesen hat (1008), ob es ein Serverfehler war (1011) -- oder ob die
+//: Verbindung nie zustande kam (1006).
+let letzterCode = 0;
+const originalSocketClose = RFB.prototype._socketClose;
+RFB.prototype._socketClose = function (ereignis) {
+  letzterCode = (ereignis && ereignis.code) || 0;
+  if (ereignis && ereignis.reason) {
+    letzterGrund = letzterGrund || String(ereignis.reason);
+  }
+  return originalSocketClose.call(this, ereignis);
+};
+
+//: Hoechstens ein zweiter Anlauf. Jeder Versuch ist eine Verbindung, und ein
+//: RealVNC Server zaehlt abgebrochene Versuche mit -- wer dreimal anklopft,
+//: sperrt sich aus.
+const HOECHSTENS = 2;
+
+//: So lange darf "wird aufgebaut" stehen, bevor die Seite selbst nachsieht.
+//: Kommt die WebSocket-Verbindung gar nicht erst zustande, wartet noVNC ohne
+//: jedes Ereignis, und die Seite stuende stumm bis zum Seitenwechsel.
+const AUFBAU_GRENZE = 12000;
+
+//: Verfahren, die im Browser keinen Schluesseltausch kosten.
+//:
+//: Der Grund steht in der Bibliothek, `core/ra2.js`: fuer RA2ne erzeugt der
+//: **Browser** bei jeder Sitzung ein eigenes 2048-Bit-RSA-Schluesselpaar, in
+//: JavaScript. Die Primzahlsuche dafuer dauert ein bis drei Minuten -- genau
+//: die Zeit, die zwischen Klick und Bild lag. "Ohne Authentifizierung" (1)
+//: kostet davon nichts.
+//:
+//: Deshalb kommt es zuerst, **wenn der Server es anbietet** und wir nicht
+//: ohnehin schon wissen, was hier traegt. Das ist nicht dieselbe Vorauswahl
+//: wie in 2.8.14: die war geraten, diese steht auf einer Messung. Traegt sie
+//: nicht, nimmt der zweite Anlauf die Reihenfolge des Servers -- dann dauert
+//: es eben.
+const OHNE_SCHLUESSELTAUSCH = new Set([1]);
+
+//: RA2ne. Wird es ausgehandelt, ist die Wartezeit erklaerbar und kein Fehler.
+const RA2NE = 6;
+
+//: Tastenkombinationen, die der Arbeitsplatz selbst abfaengt und die deshalb
+//: einen Knopf brauchen. X11-Keysyms.
+const ALT_LINKS = 0xffe9;
+const F4 = 0xffc1;
+const F5 = 0xffc2;
+
+const schema = window.location.protocol === "https:" ? "wss:" : "ws:";
+
+/**
+ * Baut eine Sitzung in diesem Behaelter auf.
+ *
+ * ``quelle`` ist die Adresse der JSON-Auskunft; alles Weitere steht dort.
+ * Rueckgabe: eine Funktion, die die Sitzung wieder abbaut.
+ */
+export function starteSitzung(wurzel, quelle, { beiEnde = null } = {}) {
+  const teil = (rolle) => wurzel.querySelector(`[data-rolle="${rolle}"]`);
+  const leinwand = teil("leinwand");
+  const zeile = teil("status");
+  const abfrage = teil("zugangsdaten");
+  const feldBenutzer = teil("benutzer");
+  const feldPasswort = teil("passwort");
+  const knopfSenden = teil("anmelden");
+  const knopfTrennen = teil("trennen");
+  const knoepfeSitzung = [...wurzel.querySelectorAll("[data-rolle^='taste-']"), knopfTrennen];
+
+  const gescheitert = new Set();
+  let rfb = null;
+  let aufbauUhr = 0;
+  let versuche = 0;
+  let stand = false;
+  let daten = null;
+  let letzterZugang = {};
+  let beendet = false;
+
+  function melden(text, art = "") {
+    if (!zeile) return;
+    zeile.textContent = text;
+    zeile.className = `screen__status${art ? " screen__status--" + art : ""}`;
+  }
+
+  function sitzungsknoepfe(sichtbar) {
+    knoepfeSitzung.forEach((knopf) => {
+      if (knopf) knopf.hidden = !sichtbar;
+    });
+  }
+
+  function grund() {
+    const teile = [];
+    if (letzterGrund) {
+      teile.push(letzterGrund.replace(/^Failed (when|while) \w+: /, ""));
+    }
+    if (rfb && rfb._rfbAuthScheme > 0) {
+      teile.push(`gewähltes Verfahren: ${rfb._rfbAuthScheme}`);
+    }
+    if (gescheitert.size) {
+      teile.push(`erfolglos: ${[...gescheitert].join(", ")}`);
+    }
+    return teile.join(" · ");
+  }
+
+  // Steht die WebSocket-Strecke zu TESM überhaupt? Zwei sehr verschiedene
+  // Ursachen sehen von aussen gleich aus: der VNC-Server mag nicht, oder die
+  // Verbindung kommt nie zustande, weil ein Proxy zwischen Browser und TESM
+  // "Upgrade" nicht durchreicht. Diese Probe trennt sie.
+  function streckeTesten() {
+    return new Promise((fertig) => {
+      let beantwortet = false;
+      const pruefling = new WebSocket(`${schema}//${window.location.host}/ws/probe`);
+      const schliessen = (ergebnis) => {
+        if (beantwortet) return;
+        beantwortet = true;
+        try {
+          pruefling.close();
+        } catch (fehler) {
+          /* schon zu */
+        }
+        fertig(ergebnis);
+      };
+      pruefling.onmessage = () => schliessen(true);
+      pruefling.onerror = () => schliessen(false);
+      pruefling.onclose = () => schliessen(false);
+      window.setTimeout(() => schliessen(false), 4000);
+    });
+  }
+
+  // Hat das gewählte Verfahren die Verbindung abreissen lassen? Dann ist das
+  // ein Befund und keine Vermutung -- der naechste Anlauf laesst es aus. Nur
+  // solange nie ein Bild stand: bricht eine **laufende** Sitzung ab, liegt es
+  // nicht am Anmeldeverfahren.
+  function naechsterVersuch() {
+    const verfahren = rfb && rfb._rfbAuthScheme > 0 ? rfb._rfbAuthScheme : 0;
+    if (!verfahren || versuche >= HOECHSTENS || gescheitert.has(verfahren)) {
+      return false;
+    }
+    gescheitert.add(verfahren);
+    melden(
+      `Verfahren ${verfahren} hat die Verbindung nicht getragen – nächster Anlauf ` +
+        "mit dem nächsten, das der Server anbietet …",
+      "warnung",
+    );
+    const zugang = letzterZugang;
+    rfb = null;
+    window.setTimeout(() => verbinden(zugang), 400);
+    return true;
+  }
+
+  function verfahrenMelden(gewaehlt) {
+    if (!gewaehlt || gewaehlt === daten.bewaehrt || !daten.meldeweg) return;
+    fetch(daten.meldeweg, {
+      method: "POST",
+      credentials: "same-origin",
+      headers: {
+        "Content-Type": "application/json",
+        "X-Requested-With": "fetch",
+        "X-CSRF-Token": document.body?.dataset.csrf || "",
+      },
+      body: JSON.stringify({ verfahren: gewaehlt }),
+    }).catch(() => {
+      /* Eine Merkhilfe, kein Teil der Sitzung. */
+    });
+  }
+
+  function verbinden(zugang) {
+    if (beendet) return;
+    melden(versuche ? "Nächster Versuch …" : "Verbindung wird aufgebaut …");
+    letzterGrund = "";
+    letzterCode = 0;
+    letzterZugang = zugang;
+    versuche += 1;
+    window.clearTimeout(aufbauUhr);
+    aufbauUhr = window.setTimeout(() => {
+      // Ein ausgehandeltes RA2ne ist kein Fehler, sondern Rechenzeit: der
+      // Browser erzeugt dafuer gerade einen 2048-Bit-Schluessel. Das zu
+      // melden ist das Gegenteil einer Warnung -- es nimmt die Sorge.
+      if (rfb && rfb._rfbAuthScheme === RA2NE) {
+        melden(
+          "Der Server verlangt RA2ne (RSA-AES). Dafür erzeugt der Browser ein " +
+            "2048-Bit-Schlüsselpaar – das dauert ein bis drei Minuten. Bitte warten.",
+          "warnung",
+        );
+        return;
+      }
+      melden("Es kommt keine Antwort. Wird geprüft, woran es liegt …", "warnung");
+      streckeTesten().then((steht) => {
+        melden(
+          steht
+            ? "Die WebSocket-Strecke zu TESM steht, aber die Sitzung kommt nicht " +
+                "zustande. Antwortet der VNC-Server auf dem Gerät noch? Ein Neustart " +
+                "des VNC-Dienstes räumt eine Sperre ab."
+            : "Die WebSocket-Verbindung zu TESM kommt nicht zustande – auch eine " +
+                "einfache Probe scheitert. Ein Proxy zwischen Browser und TESM muss " +
+                "die Kopfzeilen Upgrade und Connection durchreichen (nginx: " +
+                "location /ws/ mit proxy_set_header Upgrade $http_upgrade).",
+          "fehler",
+        );
+      });
+    }, AUFBAU_GRENZE);
+
+    // Drei Regeln, alle aus Messung und keine aus Vermutung:
+    //
+    // 1. Was schon einmal getragen hat, kommt zuerst.
+    // 2. Sonst das Verfahren ohne Schluesseltausch -- aber nur, wenn der
+    //    Server es nachweislich anbietet (sonst faende noVNC gar keines und
+    //    scheiterte sofort). RA2ne kostet sonst ein bis drei Minuten
+    //    Rechenzeit im Browser, jedes Mal.
+    // 3. Was abgerissen ist, wird nicht noch einmal gewaehlt.
+    //
+    // Beides gilt nur fuer den **ersten** Anlauf; danach zaehlt die
+    // Reihenfolge des Servers, abzueglich dessen, was schon abgerissen ist.
+    const bewaehrt = daten.bewaehrt || 0;
+    const angeboten = daten.verfahren || [];
+    const schnell = angeboten.filter((typ) => OHNE_SCHLUESSELTAUSCH.has(typ));
+    let bevorzugt = 0;
+    if (versuche === 1) {
+      if (bewaehrt > 0 && !gescheitert.has(bewaehrt)) bevorzugt = bewaehrt;
+      else if (schnell.length && !gescheitert.has(schnell[0])) bevorzugt = schnell[0];
+    }
+    RFB.prototype._isSupportedSecurityType = function (typ) {
+      if (gescheitert.has(typ)) return false;
+      if (bevorzugt) return typ === bevorzugt;
+      return istUnterstuetzt.call(this, typ);
+    };
+
+    rfb = new RFB(leinwand, `${schema}//${window.location.host}${daten.socket}`, {
+      credentials: zugang,
+      // Eine Bildschirmsitzung soll nicht nebenbei die Zwischenablage des
+      // Arbeitsplatzes mit dem Geraet teilen -- das ist eine eigene
+      // Entscheidung, und niemand hat sie hier getroffen.
+      clipboardTarget: null,
+    });
+    rfb.scaleViewport = true;
+    rfb.resizeSession = false;
+    rfb.focusOnClick = true;
+
+    rfb.addEventListener("connect", () => {
+      window.clearTimeout(aufbauUhr);
+      stand = true;
+      verfahrenMelden(rfb && rfb._rfbAuthScheme > 0 ? rfb._rfbAuthScheme : 0);
+      melden(`Verbunden mit ${daten.ziel}`, "ok");
+      if (abfrage) abfrage.hidden = true;
+      leinwand.hidden = false;
+      sitzungsknoepfe(true);
+    });
+
+    rfb.addEventListener("disconnect", (ereignis) => {
+      window.clearTimeout(aufbauUhr);
+      leinwand.hidden = true;
+      sitzungsknoepfe(false);
+      if (ereignis.detail && ereignis.detail.clean) {
+        // Beim sauberen Schluss steht der Grund im Schliessrahmen -- etwa,
+        // dass TESM wegen Untätigkeit getrennt hat.
+        melden(letzterGrund ? `Sitzung beendet – ${letzterGrund}` : "Sitzung beendet.");
+        // Im Fenster gibt es nach dem Trennen nichts mehr zu sehen: ein leerer
+        // Rahmen, den man wegklicken muss. Bei einem **Abbruch** bleibt es
+        // stehen -- dort steht der Grund, und der ist der ganze Zweck.
+        beiEnde?.();
+      } else if (!stand && naechsterVersuch()) {
+        return;
+      } else {
+        const erklaerung = grund();
+        melden(
+          erklaerung
+            ? `Verbindung abgebrochen – ${erklaerung}`
+            : "Verbindung abgebrochen. Wird geprüft, woran es liegt …",
+          "fehler",
+        );
+        if (letzterCode === 1006 || !erklaerung) {
+          streckeTesten().then((steht) => {
+            melden(
+              steht
+                ? `${erklaerung || "Verbindung abgebrochen"} – die WebSocket-Strecke zu ` +
+                    "TESM selbst steht (Probe erfolgreich), der Abbruch kommt also von " +
+                    "der VNC-Seite."
+                : "Die WebSocket-Verbindung zu TESM kommt nicht zustande – auch eine " +
+                    "einfache Probe scheitert. Ein Proxy zwischen Browser und TESM muss " +
+                    "die Kopfzeilen Upgrade und Connection durchreichen (nginx: " +
+                    "location /ws/ mit proxy_set_header Upgrade $http_upgrade). Dasselbe " +
+                    "gilt für die Browser-Konsole.",
+              "fehler",
+            );
+          });
+        }
+      }
+      rfb = null;
+    });
+
+    rfb.addEventListener("credentialsrequired", (ereignis) => {
+      window.clearTimeout(aufbauUhr);
+      const gefragt = ereignis.detail.types || ["password"];
+      if (abfrage) abfrage.hidden = false;
+      if (feldBenutzer) feldBenutzer.closest("label").hidden = !gefragt.includes("username");
+      melden("Der VNC-Server verlangt Zugangsdaten.", "warnung");
+      (gefragt.includes("username") ? feldBenutzer : feldPasswort)?.focus();
+    });
+
+    rfb.addEventListener("securityfailure", (ereignis) => {
+      window.clearTimeout(aufbauUhr);
+      melden(
+        `Anmeldung abgelehnt: ${ereignis.detail.reason || "kein Grund genannt"}`,
+        "fehler",
+      );
+      if (abfrage) abfrage.hidden = false;
+    });
+  }
+
+  knopfSenden?.addEventListener("click", () => {
+    const zugang = {};
+    if (feldBenutzer?.value) zugang.username = feldBenutzer.value;
+    if (feldPasswort?.value) zugang.password = feldPasswort.value;
+    if (rfb) rfb.sendCredentials(zugang);
+    else verbinden(zugang);
+  });
+
+  [feldBenutzer, feldPasswort].forEach((feld) =>
+    feld?.addEventListener("keydown", (ereignis) => {
+      if (ereignis.key === "Enter") {
+        ereignis.preventDefault();
+        knopfSenden?.click();
+      }
+    }),
+  );
+
+  knopfTrennen?.addEventListener("click", () => rfb && rfb.disconnect());
+  teil("taste-cad")?.addEventListener("click", () => rfb && rfb.sendCtrlAltDel());
+  // Alt+F4 kennt noVNC nicht als fertigen Griff: der Arbeitsplatz faengt die
+  // Kombination selbst ab, bevor sie in der Leinwand ankommt. Also einzeln --
+  // Alt halten, F4 tippen, Alt loslassen -- wie es auf der Tastatur auch
+  // geschieht.
+  teil("taste-altf4")?.addEventListener("click", () => {
+    if (!rfb) return;
+    rfb.sendKey(ALT_LINKS, "AltLeft", true);
+    rfb.sendKey(F4, "F4", true);
+    rfb.sendKey(F4, "F4", false);
+    rfb.sendKey(ALT_LINKS, "AltLeft", false);
+  });
+  // F5 faengt der Browser des Arbeitsplatzes ab -- er wuerde diese Seite neu
+  // laden statt das Bild auf dem Geraet.
+  teil("taste-f5")?.addEventListener("click", () => {
+    if (!rfb) return;
+    rfb.sendKey(F5, "F5", true);
+    rfb.sendKey(F5, "F5", false);
+  });
+
+  sitzungsknoepfe(false);
+  melden("Wird vorbereitet …");
+
+  fetch(quelle, { credentials: "same-origin", headers: { "X-Requested-With": "fetch" } })
+    .then((antwort) => antwort.json().then((inhalt) => ({ status: antwort.status, inhalt })))
+    .then(({ status, inhalt }) => {
+      if (beendet) return;
+      if (status === 409 && inhalt.reauth) {
+        melden(
+          "Für den Bildschirm ist eine frische Passwortbestätigung nötig – bitte über " +
+            "die Geräteseite öffnen.",
+          "warnung",
+        );
+        return;
+      }
+      if (status !== 200) {
+        melden(inhalt.fehler || "Diese Sitzung lässt sich nicht öffnen.", "fehler");
+        return;
+      }
+      daten = inhalt;
+      if (daten.hinderungsgrund) {
+        melden(daten.hinderungsgrund, "fehler");
+        return;
+      }
+      const zugang = {};
+      if (daten.vorgaben?.username) zugang.username = daten.vorgaben.username;
+      if (daten.vorgaben?.password) zugang.password = daten.vorgaben.password;
+      verbinden(zugang);
+    })
+    .catch(() => melden("Die Sitzungsdaten sind nicht abrufbar.", "fehler"));
+
+  return function beenden() {
+    beendet = true;
+    window.clearTimeout(aufbauUhr);
+    try {
+      rfb?.disconnect();
+    } catch (fehler) {
+      /* schon zu */
+    }
+    rfb = null;
+  };
+}
+
+// -- Die beiden Orte -------------------------------------------------------- #
+
+// 1. Die Bildschirmseite: ein Behaelter, der seine Quelle selbst mitbringt.
+const seite = document.getElementById("screen");
+if (seite?.dataset.sitzung) {
+  starteSitzung(seite, seite.dataset.sitzung);
+}
+
+// 2. Die Statusuebersicht: ein Fenster, das jede Kachel oeffnen kann. Ein
+//    Dialog fuer alle -- er bekommt beim Oeffnen, welches Geraet gemeint ist.
+const fenster = document.getElementById("vnc-fenster");
+if (fenster) {
+  let beenden = null;
+  const behaelter = fenster.querySelector("[data-rolle='behaelter']");
+  const titel = fenster.querySelector("[data-rolle='titel']");
+
+  document.addEventListener("click", (ereignis) => {
+    const knopf = ereignis.target.closest("[data-vnc-oeffnen]");
+    if (!knopf) return;
+    ereignis.preventDefault();
+    beenden?.();
+    titel.textContent = knopf.dataset.vncName || "Bildschirm";
+    if (typeof fenster.showModal === "function") fenster.showModal();
+    else fenster.setAttribute("open", "");
+    beenden = starteSitzung(behaelter, knopf.dataset.vncOeffnen, {
+      beiEnde: () => fenster.close(),
+    });
+  });
+
+  // Zu heisst zu: eine Sitzung, die im Hintergrund weiterlaeuft, haelt die
+  // Verbindung zum Geraet und bei RealVNC den einen Sitzungsplatz.
+  fenster.addEventListener("close", () => {
+    beenden?.();
+    beenden = null;
+  });
+}

packages/tesm-core/src/tesm_core/static/tesm_core/js/viewer.js

@@ -960,15 +960,22 @@ export function initFilePreview(wurzel = document) {
   const ersetzenFeld = stueck("ersetzen");
   const ersetzenKasten = stueck("ersetzenfeld");
   const pruefzeile = stueck("pruefung");
-  // Die Ordner der geoeffneten Freigabe kommen mit der Seite; die einer
-  // anderen holt das Auswahlfeld bei Bedarf nach.
-  const eigeneOrdner = () => {
-    try {
-      return JSON.parse(rumpf.dataset.viewerOrdnerliste || "[]");
-    } catch {
-      return [];
-    }
-  };
+  // Die Ordner der geoeffneten Freigabe stehen bereits in der Auswahl -- der
+  // Server hat sie dort hineingeschrieben. Gemerkt werden sie trotzdem, denn
+  // wer zwischendurch eine andere Freigabe waehlt, ersetzt die Liste; die
+  // einer anderen Freigabe holt das Auswahlfeld dann bei Bedarf nach.
+  //
+  // Vorher stand dieselbe Liste ein zweites Mal daneben, als JSON in einem
+  // Attribut -- und kam dort nie an: ``tojson`` laesst doppelte
+  // Anfuehrungszeichen stehen, und in einem doppelt gequoteten Attribut endet
+  // der Wert damit nach der oeffnenden Klammer. Die Auswahl zeigte danach nur
+  // noch das Wurzelverzeichnis, und in einen Unterordner liess sich nichts
+  // mehr speichern. Zwei Fassungen derselben Liste waren die eigentliche
+  // Ursache; jetzt gibt es nur noch eine.
+  const gelieferteOrdner = ordnerFeld
+    ? [...ordnerFeld.options].map((eintrag) => eintrag.value).filter(Boolean)
+    : [];
+  const eigeneOrdner = () => gelieferteOrdner;
   const jetzt = stueck("jetzt");
   const abbrechen = stueck("abbrechen");
   const modusFeld = stueck("modus");

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/AUTHORS

@@ -0,0 +1,13 @@
+maintainers:
+- Samuel Mannehed for Cendio AB (@samhed)
+- Pierre Ossman for Cendio AB (@CendioOssman)
+maintainersEmeritus:
+- Joel Martin (@kanaka)
+- Solly Ross (@directxman12)
+- @astrand 
+contributors:
+# There are a bunch of people that should be here.
+# If you want to be on this list, feel free send a PR
+# to add yourself.
+- jalf <git@jalf.dk>
+- NTT corp.

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/HERKUNFT.md

@@ -0,0 +1,52 @@
+# noVNC 1.6.0 -- mitgeliefert, nicht nachgeladen
+
+Quelle: <https://github.com/novnc/noVNC>, Fassung **1.6.0**, uebernommen am
+13.09.2026. Enthalten sind `core/` (die Bibliothek) und `vendor/pako` (die
+Entpackroutine, die `core/inflator.js` braucht) -- ohne `app/`, `tests/` und
+die mitgelieferte Oberflaeche: die Bedienung stellt TESM selbst
+(`apps/tesm/src/tesm/templates/tesm/screen.html`).
+
+**Lizenz:** MPL-2.0 fuer die Kernbibliothek, siehe `LICENSE.txt` und `AUTHORS`
+(beide unveraendert uebernommen). pako steht unter MIT, siehe
+`vendor/pako/LICENSE`.
+
+**Warum mitgeliefert und nicht von einem CDN:** dieselbe Regel wie bei pdf.js
+und pdf-lib nebenan. Die Anwendung laeuft in Netzen ohne Internetzugang, die
+Inhaltsrichtlinie (CSP) erlaubt ausschliesslich `'self'`, und eine
+Bibliothek, die sich zur Laufzeit aendern kann, gehoert nicht in einen Pfad,
+der einen Bildschirm fernsteuert.
+
+**Unveraendert.** Wird eine Anpassung noetig, gehoert sie hierher in diese
+Datei -- mit Grund und Fundstelle, damit ein Wechsel auf eine neuere Fassung
+nicht stillschweigend darueberlaeuft.
+
+**Was TESM von aussen umbiegt** (also *nicht* in diesen Dateien steht, sondern
+in `js/screen.js`):
+
+* `RFB.prototype._fail` und `_socketClose` -- nur, um den Grund eines
+  Abbruchs zu erfahren. noVNC meldet ihn sonst ausschliesslich in die
+  Entwicklerkonsole, und `console.error` mitzulesen traegt nicht: die
+  Bibliothek bindet es beim Laden.
+* `RFB.prototype._isSupportedSecurityType` -- **erst nachdem** ein Verfahren
+  die Verbindung nachweislich hat abreissen lassen. Dann wird es fuer den
+  zweiten Anlauf ausgelassen, damit noVNC nicht wieder dasselbe zuerst findet.
+  Hoechstens zwei Anlaeufe, denn jeder ist eine Verbindung, und ein RealVNC
+  Server zaehlt abgebrochene mit.
+
+  Hier stand einmal das Gegenteil: eine **Vorauswahl**, die ohne hinterlegte
+  Zugangsdaten ein Verfahren ohne Anmeldung erzwang. Das war geraten und hat
+  eine laufende Sitzung gebrochen. Der Unterschied ist nicht der Code, sondern
+  der Anlass: eine Vermutung vorher gegen einen Befund hinterher.
+
+Faellt eine dieser Methoden in einer neueren Fassung weg, entfaellt nur die
+Auskunft bzw. der zweite Anlauf -- die Sitzung laeuft wie ohne sie.
+
+**Was noVNC an Sicherheitsverfahren spricht** (`core/rfb.js`,
+`_isSupportedSecurityType`): `1` None, `2` VNC-Passwort, `6` RA2ne (RSA-AES
+ohne Streckenverschluesselung), `16` Tight, `19` VeNCrypt, `22` xvp, `30` ARD,
+`113` MS-Logon II. **Nicht** dabei: `5` (RA2 mit Streckenverschluesselung) und
+alles aus dem RealVNC-eigenen Bereich `7`-`15`. Ein RealVNC Server, der nur
+`13` und `5` anbietet, kommt mit dieser Bibliothek also nicht zusammen -- er
+muss `Encryption=AlwaysOff` (dann `6`) oder `Authentication=VncAuth` (dann
+`2`) angeboten bekommen. TESM misst das und schreibt es auf die Seite, statt
+den Benutzer vor eine schwarze Flaeche zu setzen.

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/LICENSE.txt

@@ -0,0 +1,62 @@
+noVNC is Copyright (C) 2022 The noVNC authors
+(./AUTHORS)
+
+The noVNC core library files are licensed under the MPL 2.0 (Mozilla
+Public License 2.0). The noVNC core library is composed of the
+Javascript code necessary for full noVNC operation. This includes (but
+is not limited to):
+
+    core/**/*.js
+    app/*.js
+    test/playback.js
+
+The HTML, CSS, font and images files that included with the noVNC
+source distibution (or repository) are not considered part of the
+noVNC core library and are licensed under more permissive licenses.
+The intent is to allow easy integration of noVNC into existing web
+sites and web applications.
+
+The HTML, CSS, font and image files are licensed as follows:
+
+    *.html                     : 2-Clause BSD license
+
+    app/styles/*.css           : 2-Clause BSD license
+
+    app/styles/Orbitron*       : SIL Open Font License 1.1
+                                 (Copyright 2009 Matt McInerney)
+
+    app/images/                : Creative Commons Attribution-ShareAlike
+                                 http://creativecommons.org/licenses/by-sa/3.0/
+
+Some portions of noVNC are copyright to their individual authors.
+Please refer to the individual source files and/or to the noVNC commit
+history: https://github.com/novnc/noVNC/commits/master
+
+The are several files and projects that have been incorporated into
+the noVNC core library. Here is a list of those files and the original
+licenses (all MPL 2.0 compatible):
+
+    core/base64.js          : MPL 2.0
+
+    core/des.js             : Various BSD style licenses
+
+    vendor/pako/            : MIT
+
+Any other files not mentioned above are typically marked with
+a copyright/license header at the top of the file. The default noVNC
+license is MPL-2.0.
+
+The following license texts are included:
+
+    docs/LICENSE.MPL-2.0
+    docs/LICENSE.OFL-1.1
+    docs/LICENSE.BSD-3-Clause (New BSD)
+    docs/LICENSE.BSD-2-Clause (Simplified BSD / FreeBSD)
+    vendor/pako/LICENSE (MIT)
+
+Or alternatively the license texts may be found here:
+
+    http://www.mozilla.org/MPL/2.0/
+    http://scripts.sil.org/OFL
+    http://en.wikipedia.org/wiki/BSD_licenses
+    https://opensource.org/licenses/MIT

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/base64.js

@@ -0,0 +1,104 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// From: http://hg.mozilla.org/mozilla-central/raw-file/ec10630b1a54/js/src/devtools/jint/sunspider/string-base64.js
+
+import * as Log from './util/logging.js';
+
+export default {
+    /* Convert data (an array of integers) to a Base64 string. */
+    toBase64Table: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='.split(''),
+    base64Pad: '=',
+
+    encode(data) {
+        "use strict";
+        let result = '';
+        const length = data.length;
+        const lengthpad = (length % 3);
+        // Convert every three bytes to 4 ascii characters.
+
+        for (let i = 0; i < (length - 2); i += 3) {
+            result += this.toBase64Table[data[i] >> 2];
+            result += this.toBase64Table[((data[i] & 0x03) << 4) + (data[i + 1] >> 4)];
+            result += this.toBase64Table[((data[i + 1] & 0x0f) << 2) + (data[i + 2] >> 6)];
+            result += this.toBase64Table[data[i + 2] & 0x3f];
+        }
+
+        // Convert the remaining 1 or 2 bytes, pad out to 4 characters.
+        const j = length - lengthpad;
+        if (lengthpad === 2) {
+            result += this.toBase64Table[data[j] >> 2];
+            result += this.toBase64Table[((data[j] & 0x03) << 4) + (data[j + 1] >> 4)];
+            result += this.toBase64Table[(data[j + 1] & 0x0f) << 2];
+            result += this.toBase64Table[64];
+        } else if (lengthpad === 1) {
+            result += this.toBase64Table[data[j] >> 2];
+            result += this.toBase64Table[(data[j] & 0x03) << 4];
+            result += this.toBase64Table[64];
+            result += this.toBase64Table[64];
+        }
+
+        return result;
+    },
+
+    /* Convert Base64 data to a string */
+    /* eslint-disable comma-spacing */
+    toBinaryTable: [
+        -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+        -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+        -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,62, -1,-1,-1,63,
+        52,53,54,55, 56,57,58,59, 60,61,-1,-1, -1, 0,-1,-1,
+        -1, 0, 1, 2,  3, 4, 5, 6,  7, 8, 9,10, 11,12,13,14,
+        15,16,17,18, 19,20,21,22, 23,24,25,-1, -1,-1,-1,-1,
+        -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
+        41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
+    ],
+    /* eslint-enable comma-spacing */
+
+    decode(data, offset = 0) {
+        let dataLength = data.indexOf('=') - offset;
+        if (dataLength < 0) { dataLength = data.length - offset; }
+
+        /* Every four characters is 3 resulting numbers */
+        const resultLength = (dataLength >> 2) * 3 + Math.floor((dataLength % 4) / 1.5);
+        const result = new Array(resultLength);
+
+        // Convert one by one.
+
+        let leftbits = 0; // number of bits decoded, but yet to be appended
+        let leftdata = 0; // bits decoded, but yet to be appended
+        for (let idx = 0, i = offset; i < data.length; i++) {
+            const c = this.toBinaryTable[data.charCodeAt(i) & 0x7f];
+            const padding = (data.charAt(i) === this.base64Pad);
+            // Skip illegal characters and whitespace
+            if (c === -1) {
+                Log.Error("Illegal character code " + data.charCodeAt(i) + " at position " + i);
+                continue;
+            }
+
+            // Collect data into leftdata, update bitcount
+            leftdata = (leftdata << 6) | c;
+            leftbits += 6;
+
+            // If we have 8 or more bits, append 8 bits to the result
+            if (leftbits >= 8) {
+                leftbits -= 8;
+                // Append if not padding.
+                if (!padding) {
+                    result[idx++] = (leftdata >> leftbits) & 0xff;
+                }
+                leftdata &= (1 << leftbits) - 1;
+            }
+        }
+
+        // If there are any bits left, the base64 string was corrupted
+        if (leftbits) {
+            const err = new Error('Corrupted base64 string');
+            err.name = 'Base64-Error';
+            throw err;
+        }
+
+        return result;
+    }
+}; /* End of Base64 namespace */

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/crypto/aes.js

@@ -0,0 +1,178 @@
+export class AESECBCipher {
+    constructor() {
+        this._key = null;
+    }
+
+    get algorithm() {
+        return { name: "AES-ECB" };
+    }
+
+    static async importKey(key, _algorithm, extractable, keyUsages) {
+        const cipher = new AESECBCipher;
+        await cipher._importKey(key, extractable, keyUsages);
+        return cipher;
+    }
+
+    async _importKey(key, extractable, keyUsages) {
+        this._key = await window.crypto.subtle.importKey(
+            "raw", key, {name: "AES-CBC"}, extractable, keyUsages);
+    }
+
+    async encrypt(_algorithm, plaintext) {
+        const x = new Uint8Array(plaintext);
+        if (x.length % 16 !== 0 || this._key === null) {
+            return null;
+        }
+        const n = x.length / 16;
+        for (let i = 0; i < n; i++) {
+            const y = new Uint8Array(await window.crypto.subtle.encrypt({
+                name: "AES-CBC",
+                iv: new Uint8Array(16),
+            }, this._key, x.slice(i * 16, i * 16 + 16))).slice(0, 16);
+            x.set(y, i * 16);
+        }
+        return x;
+    }
+}
+
+export class AESEAXCipher {
+    constructor() {
+        this._rawKey = null;
+        this._ctrKey = null;
+        this._cbcKey = null;
+        this._zeroBlock = new Uint8Array(16);
+        this._prefixBlock0 = this._zeroBlock;
+        this._prefixBlock1 = new Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]);
+        this._prefixBlock2 = new Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2]);
+    }
+
+    get algorithm() {
+        return { name: "AES-EAX" };
+    }
+
+    async _encryptBlock(block) {
+        const encrypted = await window.crypto.subtle.encrypt({
+            name: "AES-CBC",
+            iv: this._zeroBlock,
+        }, this._cbcKey, block);
+        return new Uint8Array(encrypted).slice(0, 16);
+    }
+
+    async _initCMAC() {
+        const k1 = await this._encryptBlock(this._zeroBlock);
+        const k2 = new Uint8Array(16);
+        const v = k1[0] >>> 6;
+        for (let i = 0; i < 15; i++) {
+            k2[i] = (k1[i + 1] >> 6) | (k1[i] << 2);
+            k1[i] = (k1[i + 1] >> 7) | (k1[i] << 1);
+        }
+        const lut = [0x0, 0x87, 0x0e, 0x89];
+        k2[14] ^= v >>> 1;
+        k2[15] = (k1[15] << 2) ^ lut[v];
+        k1[15] = (k1[15] << 1) ^ lut[v >> 1];
+        this._k1 = k1;
+        this._k2 = k2;
+    }
+
+    async _encryptCTR(data, counter) {
+        const encrypted = await window.crypto.subtle.encrypt({
+            name: "AES-CTR",
+            counter: counter,
+            length: 128
+        }, this._ctrKey, data);
+        return new Uint8Array(encrypted);
+    }
+
+    async _decryptCTR(data, counter) {
+        const decrypted = await window.crypto.subtle.decrypt({
+            name: "AES-CTR",
+            counter: counter,
+            length: 128
+        }, this._ctrKey, data);
+        return new Uint8Array(decrypted);
+    }
+
+    async _computeCMAC(data, prefixBlock) {
+        if (prefixBlock.length !== 16) {
+            return null;
+        }
+        const n = Math.floor(data.length / 16);
+        const m = Math.ceil(data.length / 16);
+        const r = data.length - n * 16;
+        const cbcData = new Uint8Array((m + 1) * 16);
+        cbcData.set(prefixBlock);
+        cbcData.set(data, 16);
+        if (r === 0) {
+            for (let i = 0; i < 16; i++) {
+                cbcData[n * 16 + i] ^= this._k1[i];
+            }
+        } else {
+            cbcData[(n + 1) * 16 + r] = 0x80;
+            for (let i = 0; i < 16; i++) {
+                cbcData[(n + 1) * 16 + i] ^= this._k2[i];
+            }
+        }
+        let cbcEncrypted = await window.crypto.subtle.encrypt({
+            name: "AES-CBC",
+            iv: this._zeroBlock,
+        }, this._cbcKey, cbcData);
+
+        cbcEncrypted = new Uint8Array(cbcEncrypted);
+        const mac = cbcEncrypted.slice(cbcEncrypted.length - 32, cbcEncrypted.length - 16);
+        return mac;
+    }
+
+    static async importKey(key, _algorithm, _extractable, _keyUsages) {
+        const cipher = new AESEAXCipher;
+        await cipher._importKey(key);
+        return cipher;
+    }
+
+    async _importKey(key) {
+        this._rawKey = key;
+        this._ctrKey = await window.crypto.subtle.importKey(
+            "raw", key, {name: "AES-CTR"}, false, ["encrypt", "decrypt"]);
+        this._cbcKey = await window.crypto.subtle.importKey(
+            "raw", key, {name: "AES-CBC"}, false, ["encrypt"]);
+        await this._initCMAC();
+    }
+
+    async encrypt(algorithm, message) {
+        const ad = algorithm.additionalData;
+        const nonce = algorithm.iv;
+        const nCMAC = await this._computeCMAC(nonce, this._prefixBlock0);
+        const encrypted = await this._encryptCTR(message, nCMAC);
+        const adCMAC = await this._computeCMAC(ad, this._prefixBlock1);
+        const mac = await this._computeCMAC(encrypted, this._prefixBlock2);
+        for (let i = 0; i < 16; i++) {
+            mac[i] ^= nCMAC[i] ^ adCMAC[i];
+        }
+        const res = new Uint8Array(16 + encrypted.length);
+        res.set(encrypted);
+        res.set(mac, encrypted.length);
+        return res;
+    }
+
+    async decrypt(algorithm, data) {
+        const encrypted = data.slice(0, data.length - 16);
+        const ad = algorithm.additionalData;
+        const nonce = algorithm.iv;
+        const mac = data.slice(data.length - 16);
+        const nCMAC = await this._computeCMAC(nonce, this._prefixBlock0);
+        const adCMAC = await this._computeCMAC(ad, this._prefixBlock1);
+        const computedMac = await this._computeCMAC(encrypted, this._prefixBlock2);
+        for (let i = 0; i < 16; i++) {
+            computedMac[i] ^= nCMAC[i] ^ adCMAC[i];
+        }
+        if (computedMac.length !== mac.length) {
+            return null;
+        }
+        for (let i = 0; i < mac.length; i++) {
+            if (computedMac[i] !== mac[i]) {
+                return null;
+            }
+        }
+        const res = await this._decryptCTR(encrypted, nCMAC);
+        return res;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/crypto/bigint.js

@@ -0,0 +1,34 @@
+export function modPow(b, e, m) {
+    let r = 1n;
+    b = b % m;
+    while (e > 0n) {
+        if ((e & 1n) === 1n) {
+            r = (r * b) % m;
+        }
+        e = e >> 1n;
+        b = (b * b) % m;
+    }
+    return r;
+}
+
+export function bigIntToU8Array(bigint, padLength=0) {
+    let hex = bigint.toString(16);
+    if (padLength === 0) {
+        padLength = Math.ceil(hex.length / 2);
+    }
+    hex = hex.padStart(padLength * 2, '0');
+    const length = hex.length / 2;
+    const arr = new Uint8Array(length);
+    for (let i = 0; i < length; i++) {
+        arr[i] = parseInt(hex.slice(i * 2, i * 2 + 2), 16);
+    }
+    return arr;
+}
+
+export function u8ArrayToBigInt(arr) {
+    let hex = '0x';
+    for (let i = 0; i < arr.length; i++) {
+        hex += arr[i].toString(16).padStart(2, '0');
+    }
+    return BigInt(hex);
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/crypto/crypto.js

@@ -0,0 +1,90 @@
+import { AESECBCipher, AESEAXCipher } from "./aes.js";
+import { DESCBCCipher, DESECBCipher } from "./des.js";
+import { RSACipher } from "./rsa.js";
+import { DHCipher } from "./dh.js";
+import { MD5 } from "./md5.js";
+
+// A single interface for the cryptographic algorithms not supported by SubtleCrypto.
+// Both synchronous and asynchronous implmentations are allowed.
+class LegacyCrypto {
+    constructor() {
+        this._algorithms = {
+            "AES-ECB": AESECBCipher,
+            "AES-EAX": AESEAXCipher,
+            "DES-ECB": DESECBCipher,
+            "DES-CBC": DESCBCCipher,
+            "RSA-PKCS1-v1_5": RSACipher,
+            "DH": DHCipher,
+            "MD5": MD5,
+        };
+    }
+
+    encrypt(algorithm, key, data) {
+        if (key.algorithm.name !== algorithm.name) {
+            throw new Error("algorithm does not match");
+        }
+        if (typeof key.encrypt !== "function") {
+            throw new Error("key does not support encryption");
+        }
+        return key.encrypt(algorithm, data);
+    }
+
+    decrypt(algorithm, key, data) {
+        if (key.algorithm.name !== algorithm.name) {
+            throw new Error("algorithm does not match");
+        }
+        if (typeof key.decrypt !== "function") {
+            throw new Error("key does not support encryption");
+        }
+        return key.decrypt(algorithm, data);
+    }
+
+    importKey(format, keyData, algorithm, extractable, keyUsages) {
+        if (format !== "raw") {
+            throw new Error("key format is not supported");
+        }
+        const alg = this._algorithms[algorithm.name];
+        if (typeof alg === "undefined" || typeof alg.importKey !== "function") {
+            throw new Error("algorithm is not supported");
+        }
+        return alg.importKey(keyData, algorithm, extractable, keyUsages);
+    }
+
+    generateKey(algorithm, extractable, keyUsages) {
+        const alg = this._algorithms[algorithm.name];
+        if (typeof alg === "undefined" || typeof alg.generateKey !== "function") {
+            throw new Error("algorithm is not supported");
+        }
+        return alg.generateKey(algorithm, extractable, keyUsages);
+    }
+
+    exportKey(format, key) {
+        if (format !== "raw") {
+            throw new Error("key format is not supported");
+        }
+        if (typeof key.exportKey !== "function") {
+            throw new Error("key does not support exportKey");
+        }
+        return key.exportKey();
+    }
+
+    digest(algorithm, data) {
+        const alg = this._algorithms[algorithm];
+        if (typeof alg !== "function") {
+            throw new Error("algorithm is not supported");
+        }
+        return alg(data);
+    }
+
+    deriveBits(algorithm, key, length) {
+        if (key.algorithm.name !== algorithm.name) {
+            throw new Error("algorithm does not match");
+        }
+        if (typeof key.deriveBits !== "function") {
+            throw new Error("key does not support deriveBits");
+        }
+        return key.deriveBits(algorithm, length);
+    }
+}
+
+export default new LegacyCrypto;

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/crypto/des.js

@@ -0,0 +1,330 @@
+/*
+ * Ported from Flashlight VNC ActionScript implementation:
+ *     http://www.wizhelp.com/flashlight-vnc/
+ *
+ * Full attribution follows:
+ *
+ * -------------------------------------------------------------------------
+ *
+ * This DES class has been extracted from package Acme.Crypto for use in VNC.
+ * The unnecessary odd parity code has been removed.
+ *
+ * These changes are:
+ *  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+
+ * DesCipher - the DES encryption method
+ *
+ * The meat of this code is by Dave Zimmerman <dzimm@widget.com>, and is:
+ *
+ * Copyright (c) 1996 Widget Workshop, Inc. All Rights Reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * and its documentation for NON-COMMERCIAL or COMMERCIAL purposes and
+ * without fee is hereby granted, provided that this copyright notice is kept
+ * intact.
+ *
+ * WIDGET WORKSHOP MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY
+ * OF THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+ * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. WIDGET WORKSHOP SHALL NOT BE LIABLE
+ * FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
+ *
+ * THIS SOFTWARE IS NOT DESIGNED OR INTENDED FOR USE OR RESALE AS ON-LINE
+ * CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE
+ * PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, AIRCRAFT
+ * NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT LIFE
+ * SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
+ * SOFTWARE COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR SEVERE
+ * PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH RISK ACTIVITIES").  WIDGET WORKSHOP
+ * SPECIFICALLY DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR
+ * HIGH RISK ACTIVITIES.
+ *
+ *
+ * The rest is:
+ *
+ * Copyright (C) 1996 by Jef Poskanzer <jef@acme.com>.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Visit the ACME Labs Java page for up-to-date versions of this and other
+ * fine Java utilities: http://www.acme.com/java/
+ */
+
+/* eslint-disable comma-spacing */
+
+// Tables, permutations, S-boxes, etc.
+const PC2 = [13,16,10,23, 0, 4, 2,27,14, 5,20, 9,22,18,11, 3,
+             25, 7,15, 6,26,19,12, 1,40,51,30,36,46,54,29,39,
+             50,44,32,47,43,48,38,55,33,52,45,41,49,35,28,31 ],
+      totrot = [ 1, 2, 4, 6, 8,10,12,14,15,17,19,21,23,25,27,28];
+
+const z = 0x0;
+let a,b,c,d,e,f;
+a=1<<16; b=1<<24; c=a|b; d=1<<2; e=1<<10; f=d|e;
+const SP1 = [c|e,z|z,a|z,c|f,c|d,a|f,z|d,a|z,z|e,c|e,c|f,z|e,b|f,c|d,b|z,z|d,
+             z|f,b|e,b|e,a|e,a|e,c|z,c|z,b|f,a|d,b|d,b|d,a|d,z|z,z|f,a|f,b|z,
+             a|z,c|f,z|d,c|z,c|e,b|z,b|z,z|e,c|d,a|z,a|e,b|d,z|e,z|d,b|f,a|f,
+             c|f,a|d,c|z,b|f,b|d,z|f,a|f,c|e,z|f,b|e,b|e,z|z,a|d,a|e,z|z,c|d];
+a=1<<20; b=1<<31; c=a|b; d=1<<5; e=1<<15; f=d|e;
+const SP2 = [c|f,b|e,z|e,a|f,a|z,z|d,c|d,b|f,b|d,c|f,c|e,b|z,b|e,a|z,z|d,c|d,
+             a|e,a|d,b|f,z|z,b|z,z|e,a|f,c|z,a|d,b|d,z|z,a|e,z|f,c|e,c|z,z|f,
+             z|z,a|f,c|d,a|z,b|f,c|z,c|e,z|e,c|z,b|e,z|d,c|f,a|f,z|d,z|e,b|z,
+             z|f,c|e,a|z,b|d,a|d,b|f,b|d,a|d,a|e,z|z,b|e,z|f,b|z,c|d,c|f,a|e];
+a=1<<17; b=1<<27; c=a|b; d=1<<3; e=1<<9; f=d|e;
+const SP3 = [z|f,c|e,z|z,c|d,b|e,z|z,a|f,b|e,a|d,b|d,b|d,a|z,c|f,a|d,c|z,z|f,
+             b|z,z|d,c|e,z|e,a|e,c|z,c|d,a|f,b|f,a|e,a|z,b|f,z|d,c|f,z|e,b|z,
+             c|e,b|z,a|d,z|f,a|z,c|e,b|e,z|z,z|e,a|d,c|f,b|e,b|d,z|e,z|z,c|d,
+             b|f,a|z,b|z,c|f,z|d,a|f,a|e,b|d,c|z,b|f,z|f,c|z,a|f,z|d,c|d,a|e];
+a=1<<13; b=1<<23; c=a|b; d=1<<0; e=1<<7; f=d|e;
+const SP4 = [c|d,a|f,a|f,z|e,c|e,b|f,b|d,a|d,z|z,c|z,c|z,c|f,z|f,z|z,b|e,b|d,
+             z|d,a|z,b|z,c|d,z|e,b|z,a|d,a|e,b|f,z|d,a|e,b|e,a|z,c|e,c|f,z|f,
+             b|e,b|d,c|z,c|f,z|f,z|z,z|z,c|z,a|e,b|e,b|f,z|d,c|d,a|f,a|f,z|e,
+             c|f,z|f,z|d,a|z,b|d,a|d,c|e,b|f,a|d,a|e,b|z,c|d,z|e,b|z,a|z,c|e];
+a=1<<25; b=1<<30; c=a|b; d=1<<8; e=1<<19; f=d|e;
+const SP5 = [z|d,a|f,a|e,c|d,z|e,z|d,b|z,a|e,b|f,z|e,a|d,b|f,c|d,c|e,z|f,b|z,
+             a|z,b|e,b|e,z|z,b|d,c|f,c|f,a|d,c|e,b|d,z|z,c|z,a|f,a|z,c|z,z|f,
+             z|e,c|d,z|d,a|z,b|z,a|e,c|d,b|f,a|d,b|z,c|e,a|f,b|f,z|d,a|z,c|e,
+             c|f,z|f,c|z,c|f,a|e,z|z,b|e,c|z,z|f,a|d,b|d,z|e,z|z,b|e,a|f,b|d];
+a=1<<22; b=1<<29; c=a|b; d=1<<4; e=1<<14; f=d|e;
+const SP6 = [b|d,c|z,z|e,c|f,c|z,z|d,c|f,a|z,b|e,a|f,a|z,b|d,a|d,b|e,b|z,z|f,
+             z|z,a|d,b|f,z|e,a|e,b|f,z|d,c|d,c|d,z|z,a|f,c|e,z|f,a|e,c|e,b|z,
+             b|e,z|d,c|d,a|e,c|f,a|z,z|f,b|d,a|z,b|e,b|z,z|f,b|d,c|f,a|e,c|z,
+             a|f,c|e,z|z,c|d,z|d,z|e,c|z,a|f,z|e,a|d,b|f,z|z,c|e,b|z,a|d,b|f];
+a=1<<21; b=1<<26; c=a|b; d=1<<1; e=1<<11; f=d|e;
+const SP7 = [a|z,c|d,b|f,z|z,z|e,b|f,a|f,c|e,c|f,a|z,z|z,b|d,z|d,b|z,c|d,z|f,
+             b|e,a|f,a|d,b|e,b|d,c|z,c|e,a|d,c|z,z|e,z|f,c|f,a|e,z|d,b|z,a|e,
+             b|z,a|e,a|z,b|f,b|f,c|d,c|d,z|d,a|d,b|z,b|e,a|z,c|e,z|f,a|f,c|e,
+             z|f,b|d,c|f,c|z,a|e,z|z,z|d,c|f,z|z,a|f,c|z,z|e,b|d,b|e,z|e,a|d];
+a=1<<18; b=1<<28; c=a|b; d=1<<6; e=1<<12; f=d|e;
+const SP8 = [b|f,z|e,a|z,c|f,b|z,b|f,z|d,b|z,a|d,c|z,c|f,a|e,c|e,a|f,z|e,z|d,
+             c|z,b|d,b|e,z|f,a|e,a|d,c|d,c|e,z|f,z|z,z|z,c|d,b|d,b|e,a|f,a|z,
+             a|f,a|z,c|e,z|e,z|d,c|d,z|e,a|f,b|e,z|d,b|d,c|z,c|d,b|z,a|z,b|f,
+             z|z,c|f,a|d,b|d,c|z,b|e,b|f,z|z,c|f,a|e,a|e,z|f,z|f,a|d,b|z,c|e];
+
+/* eslint-enable comma-spacing */
+
+class DES {
+    constructor(password) {
+        this.keys = [];
+
+        // Set the key.
+        const pc1m = [], pcr = [], kn = [];
+
+        for (let j = 0, l = 56; j < 56; ++j, l -= 8) {
+            l += l < -5 ? 65 : l < -3 ? 31 : l < -1 ? 63 : l === 27 ? 35 : 0; // PC1
+            const m = l & 0x7;
+            pc1m[j] = ((password[l >>> 3] & (1<<m)) !== 0) ? 1: 0;
+        }
+
+        for (let i = 0; i < 16; ++i) {
+            const m = i << 1;
+            const n = m + 1;
+            kn[m] = kn[n] = 0;
+            for (let o = 28; o < 59; o += 28) {
+                for (let j = o - 28; j < o; ++j) {
+                    const l = j + totrot[i];
+                    pcr[j] = l < o ? pc1m[l] : pc1m[l - 28];
+                }
+            }
+            for (let j = 0; j < 24; ++j) {
+                if (pcr[PC2[j]] !== 0) {
+                    kn[m] |= 1 << (23 - j);
+                }
+                if (pcr[PC2[j + 24]] !== 0) {
+                    kn[n] |= 1 << (23 - j);
+                }
+            }
+        }
+
+        // cookey
+        for (let i = 0, rawi = 0, KnLi = 0; i < 16; ++i) {
+            const raw0 = kn[rawi++];
+            const raw1 = kn[rawi++];
+            this.keys[KnLi] = (raw0 & 0x00fc0000) << 6;
+            this.keys[KnLi] |= (raw0 & 0x00000fc0) << 10;
+            this.keys[KnLi] |= (raw1 & 0x00fc0000) >>> 10;
+            this.keys[KnLi] |= (raw1 & 0x00000fc0) >>> 6;
+            ++KnLi;
+            this.keys[KnLi] = (raw0 & 0x0003f000) << 12;
+            this.keys[KnLi] |= (raw0 & 0x0000003f) << 16;
+            this.keys[KnLi] |= (raw1 & 0x0003f000) >>> 4;
+            this.keys[KnLi] |= (raw1 & 0x0000003f);
+            ++KnLi;
+        }
+    }
+
+    // Encrypt 8 bytes of text
+    enc8(text) {
+        const b = text.slice();
+        let i = 0, l, r, x; // left, right, accumulator
+
+        // Squash 8 bytes to 2 ints
+        l = b[i++]<<24 | b[i++]<<16 | b[i++]<<8 | b[i++];
+        r = b[i++]<<24 | b[i++]<<16 | b[i++]<<8 | b[i++];
+
+        x = ((l >>> 4) ^ r) & 0x0f0f0f0f;
+        r ^= x;
+        l ^= (x << 4);
+        x = ((l >>> 16) ^ r) & 0x0000ffff;
+        r ^= x;
+        l ^= (x << 16);
+        x = ((r >>> 2) ^ l) & 0x33333333;
+        l ^= x;
+        r ^= (x << 2);
+        x = ((r >>> 8) ^ l) & 0x00ff00ff;
+        l ^= x;
+        r ^= (x << 8);
+        r = (r << 1) | ((r >>> 31) & 1);
+        x = (l ^ r) & 0xaaaaaaaa;
+        l ^= x;
+        r ^= x;
+        l = (l << 1) | ((l >>> 31) & 1);
+
+        for (let i = 0, keysi = 0; i < 8; ++i) {
+            x = (r << 28) | (r >>> 4);
+            x ^= this.keys[keysi++];
+            let fval =  SP7[x & 0x3f];
+            fval |= SP5[(x >>> 8) & 0x3f];
+            fval |= SP3[(x >>> 16) & 0x3f];
+            fval |= SP1[(x >>> 24) & 0x3f];
+            x = r ^ this.keys[keysi++];
+            fval |= SP8[x & 0x3f];
+            fval |= SP6[(x >>> 8) & 0x3f];
+            fval |= SP4[(x >>> 16) & 0x3f];
+            fval |= SP2[(x >>> 24) & 0x3f];
+            l ^= fval;
+            x = (l << 28) | (l >>> 4);
+            x ^= this.keys[keysi++];
+            fval =  SP7[x & 0x3f];
+            fval |= SP5[(x >>> 8) & 0x3f];
+            fval |= SP3[(x >>> 16) & 0x3f];
+            fval |= SP1[(x >>> 24) & 0x3f];
+            x = l ^ this.keys[keysi++];
+            fval |= SP8[x & 0x0000003f];
+            fval |= SP6[(x >>> 8) & 0x3f];
+            fval |= SP4[(x >>> 16) & 0x3f];
+            fval |= SP2[(x >>> 24) & 0x3f];
+            r ^= fval;
+        }
+
+        r = (r << 31) | (r >>> 1);
+        x = (l ^ r) & 0xaaaaaaaa;
+        l ^= x;
+        r ^= x;
+        l = (l << 31) | (l >>> 1);
+        x = ((l >>> 8) ^ r) & 0x00ff00ff;
+        r ^= x;
+        l ^= (x << 8);
+        x = ((l >>> 2) ^ r) & 0x33333333;
+        r ^= x;
+        l ^= (x << 2);
+        x = ((r >>> 16) ^ l) & 0x0000ffff;
+        l ^= x;
+        r ^= (x << 16);
+        x = ((r >>> 4) ^ l) & 0x0f0f0f0f;
+        l ^= x;
+        r ^= (x << 4);
+
+        // Spread ints to bytes
+        x = [r, l];
+        for (i = 0; i < 8; i++) {
+            b[i] = (x[i>>>2] >>> (8 * (3 - (i % 4)))) % 256;
+            if (b[i] < 0) { b[i] += 256; } // unsigned
+        }
+        return b;
+    }
+}
+
+export class DESECBCipher {
+    constructor() {
+        this._cipher = null;
+    }
+
+    get algorithm() {
+        return { name: "DES-ECB" };
+    }
+
+    static importKey(key, _algorithm, _extractable, _keyUsages) {
+        const cipher = new DESECBCipher;
+        cipher._importKey(key);
+        return cipher;
+    }
+
+    _importKey(key, _extractable, _keyUsages) {
+        this._cipher = new DES(key);
+    }
+
+    encrypt(_algorithm, plaintext) {
+        const x = new Uint8Array(plaintext);
+        if (x.length % 8 !== 0 || this._cipher === null) {
+            return null;
+        }
+        const n = x.length / 8;
+        for (let i = 0; i < n; i++) {
+            x.set(this._cipher.enc8(x.slice(i * 8, i * 8 + 8)), i * 8);
+        }
+        return x;
+    }
+}
+
+export class DESCBCCipher {
+    constructor() {
+        this._cipher = null;
+    }
+
+    get algorithm() {
+        return { name: "DES-CBC" };
+    }
+
+    static importKey(key, _algorithm, _extractable, _keyUsages) {
+        const cipher = new DESCBCCipher;
+        cipher._importKey(key);
+        return cipher;
+    }
+
+    _importKey(key) {
+        this._cipher = new DES(key);
+    }
+
+    encrypt(algorithm, plaintext) {
+        const x = new Uint8Array(plaintext);
+        let y = new Uint8Array(algorithm.iv);
+        if (x.length % 8 !== 0 || this._cipher === null) {
+            return null;
+        }
+        const n = x.length / 8;
+        for (let i = 0; i < n; i++) {
+            for (let j = 0; j < 8; j++) {
+                y[j] ^= plaintext[i * 8 + j];
+            }
+            y = this._cipher.enc8(y);
+            x.set(y, i * 8);
+        }
+        return x;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/crypto/dh.js

@@ -0,0 +1,55 @@
+import { modPow, bigIntToU8Array, u8ArrayToBigInt } from "./bigint.js";
+
+class DHPublicKey {
+    constructor(key) {
+        this._key = key;
+    }
+
+    get algorithm() {
+        return { name: "DH" };
+    }
+
+    exportKey() {
+        return this._key;
+    }
+}
+
+export class DHCipher {
+    constructor() {
+        this._g = null;
+        this._p = null;
+        this._gBigInt = null;
+        this._pBigInt = null;
+        this._privateKey = null;
+    }
+
+    get algorithm() {
+        return { name: "DH" };
+    }
+
+    static generateKey(algorithm, _extractable) {
+        const cipher = new DHCipher;
+        cipher._generateKey(algorithm);
+        return { privateKey: cipher, publicKey: new DHPublicKey(cipher._publicKey) };
+    }
+
+    _generateKey(algorithm) {
+        const g = algorithm.g;
+        const p = algorithm.p;
+        this._keyBytes = p.length;
+        this._gBigInt = u8ArrayToBigInt(g);
+        this._pBigInt = u8ArrayToBigInt(p);
+        this._privateKey = window.crypto.getRandomValues(new Uint8Array(this._keyBytes));
+        this._privateKeyBigInt = u8ArrayToBigInt(this._privateKey);
+        this._publicKey = bigIntToU8Array(modPow(
+            this._gBigInt, this._privateKeyBigInt, this._pBigInt), this._keyBytes);
+    }
+
+    deriveBits(algorithm, length) {
+        const bytes = Math.ceil(length / 8);
+        const pkey = new Uint8Array(algorithm.public);
+        const len = bytes > this._keyBytes ? bytes : this._keyBytes;
+        const secret = modPow(u8ArrayToBigInt(pkey), this._privateKeyBigInt, this._pBigInt);
+        return bigIntToU8Array(secret, len).slice(0, len);
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/crypto/md5.js

@@ -0,0 +1,82 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2021 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+/*
+ * Performs MD5 hashing on an array of bytes, returns an array of bytes
+ */
+
+export async function MD5(d) {
+    let s = "";
+    for (let i = 0; i < d.length; i++) {
+        s += String.fromCharCode(d[i]);
+    }
+    return M(V(Y(X(s), 8 * s.length)));
+}
+
+function M(d) {
+    let f = new Uint8Array(d.length);
+    for (let i=0;i<d.length;i++) {
+        f[i] = d.charCodeAt(i);
+    }
+    return f;
+}
+
+function X(d) {
+    let r = Array(d.length >> 2);
+    for (let m = 0; m < r.length; m++) r[m] = 0;
+    for (let m = 0; m < 8 * d.length; m += 8) r[m >> 5] |= (255 & d.charCodeAt(m / 8)) << m % 32;
+    return r;
+}
+
+function V(d) {
+    let r = "";
+    for (let m = 0; m < 32 * d.length; m += 8) r += String.fromCharCode(d[m >> 5] >>> m % 32 & 255);
+    return r;
+}
+
+function Y(d, g) {
+    d[g >> 5] |= 128 << g % 32, d[14 + (g + 64 >>> 9 << 4)] = g;
+    let m = 1732584193, f = -271733879, r = -1732584194, i = 271733878;
+    for (let n = 0; n < d.length; n += 16) {
+        let h = m,
+            t = f,
+            g = r,
+            e = i;
+        f = ii(f = ii(f = ii(f = ii(f = hh(f = hh(f = hh(f = hh(f = gg(f = gg(f = gg(f = gg(f = ff(f = ff(f = ff(f = ff(f, r = ff(r, i = ff(i, m = ff(m, f, r, i, d[n + 0], 7, -680876936), f, r, d[n + 1], 12, -389564586), m, f, d[n + 2], 17, 606105819), i, m, d[n + 3], 22, -1044525330), r = ff(r, i = ff(i, m = ff(m, f, r, i, d[n + 4], 7, -176418897), f, r, d[n + 5], 12, 1200080426), m, f, d[n + 6], 17, -1473231341), i, m, d[n + 7], 22, -45705983), r = ff(r, i = ff(i, m = ff(m, f, r, i, d[n + 8], 7, 1770035416), f, r, d[n + 9], 12, -1958414417), m, f, d[n + 10], 17, -42063), i, m, d[n + 11], 22, -1990404162), r = ff(r, i = ff(i, m = ff(m, f, r, i, d[n + 12], 7, 1804603682), f, r, d[n + 13], 12, -40341101), m, f, d[n + 14], 17, -1502002290), i, m, d[n + 15], 22, 1236535329), r = gg(r, i = gg(i, m = gg(m, f, r, i, d[n + 1], 5, -165796510), f, r, d[n + 6], 9, -1069501632), m, f, d[n + 11], 14, 643717713), i, m, d[n + 0], 20, -373897302), r = gg(r, i = gg(i, m = gg(m, f, r, i, d[n + 5], 5, -701558691), f, r, d[n + 10], 9, 38016083), m, f, d[n + 15], 14, -660478335), i, m, d[n + 4], 20, -405537848), r = gg(r, i = gg(i, m = gg(m, f, r, i, d[n + 9], 5, 568446438), f, r, d[n + 14], 9, -1019803690), m, f, d[n + 3], 14, -187363961), i, m, d[n + 8], 20, 1163531501), r = gg(r, i = gg(i, m = gg(m, f, r, i, d[n + 13], 5, -1444681467), f, r, d[n + 2], 9, -51403784), m, f, d[n + 7], 14, 1735328473), i, m, d[n + 12], 20, -1926607734), r = hh(r, i = hh(i, m = hh(m, f, r, i, d[n + 5], 4, -378558), f, r, d[n + 8], 11, -2022574463), m, f, d[n + 11], 16, 1839030562), i, m, d[n + 14], 23, -35309556), r = hh(r, i = hh(i, m = hh(m, f, r, i, d[n + 1], 4, -1530992060), f, r, d[n + 4], 11, 1272893353), m, f, d[n + 7], 16, -155497632), i, m, d[n + 10], 23, -1094730640), r = hh(r, i = hh(i, m = hh(m, f, r, i, d[n + 13], 4, 681279174), f, r, d[n + 0], 11, -358537222), m, f, d[n + 3], 16, -722521979), i, m, d[n + 6], 23, 76029189), r = hh(r, i = hh(i, m = hh(m, f, r, i, d[n + 9], 4, -640364487), f, r, d[n + 12], 11, -421815835), m, f, d[n + 15], 16, 530742520), i, m, d[n + 2], 23, -995338651), r = ii(r, i = ii(i, m = ii(m, f, r, i, d[n + 0], 6, -198630844), f, r, d[n + 7], 10, 1126891415), m, f, d[n + 14], 15, -1416354905), i, m, d[n + 5], 21, -57434055), r = ii(r, i = ii(i, m = ii(m, f, r, i, d[n + 12], 6, 1700485571), f, r, d[n + 3], 10, -1894986606), m, f, d[n + 10], 15, -1051523), i, m, d[n + 1], 21, -2054922799), r = ii(r, i = ii(i, m = ii(m, f, r, i, d[n + 8], 6, 1873313359), f, r, d[n + 15], 10, -30611744), m, f, d[n + 6], 15, -1560198380), i, m, d[n + 13], 21, 1309151649), r = ii(r, i = ii(i, m = ii(m, f, r, i, d[n + 4], 6, -145523070), f, r, d[n + 11], 10, -1120210379), m, f, d[n + 2], 15, 718787259), i, m, d[n + 9], 21, -343485551), m = add(m, h), f = add(f, t), r = add(r, g), i = add(i, e);
+    }
+    return Array(m, f, r, i);
+}
+
+function cmn(d, g, m, f, r, i) {
+    return add(rol(add(add(g, d), add(f, i)), r), m);
+}
+
+function ff(d, g, m, f, r, i, n) {
+    return cmn(g & m | ~g & f, d, g, r, i, n);
+}
+
+function gg(d, g, m, f, r, i, n) {
+    return cmn(g & f | m & ~f, d, g, r, i, n);
+}
+
+function hh(d, g, m, f, r, i, n) {
+    return cmn(g ^ m ^ f, d, g, r, i, n);
+}
+
+function ii(d, g, m, f, r, i, n) {
+    return cmn(m ^ (g | ~f), d, g, r, i, n);
+}
+
+function add(d, g) {
+    let m = (65535 & d) + (65535 & g);
+    return (d >> 16) + (g >> 16) + (m >> 16) << 16 | 65535 & m;
+}
+
+function rol(d, g) {
+    return d << g | d >>> 32 - g;
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/crypto/rsa.js

@@ -0,0 +1,132 @@
+import Base64 from "../base64.js";
+import { modPow, bigIntToU8Array, u8ArrayToBigInt } from "./bigint.js";
+
+export class RSACipher {
+    constructor() {
+        this._keyLength = 0;
+        this._keyBytes = 0;
+        this._n = null;
+        this._e = null;
+        this._d = null;
+        this._nBigInt = null;
+        this._eBigInt = null;
+        this._dBigInt = null;
+        this._extractable = false;
+    }
+
+    get algorithm() {
+        return { name: "RSA-PKCS1-v1_5" };
+    }
+
+    _base64urlDecode(data) {
+        data = data.replace(/-/g, "+").replace(/_/g, "/");
+        data = data.padEnd(Math.ceil(data.length / 4) * 4, "=");
+        return Base64.decode(data);
+    }
+
+    _padArray(arr, length) {
+        const res = new Uint8Array(length);
+        res.set(arr, length - arr.length);
+        return res;
+    }
+
+    static async generateKey(algorithm, extractable, _keyUsages) {
+        const cipher = new RSACipher;
+        await cipher._generateKey(algorithm, extractable);
+        return { privateKey: cipher };
+    }
+
+    async _generateKey(algorithm, extractable) {
+        this._keyLength = algorithm.modulusLength;
+        this._keyBytes = Math.ceil(this._keyLength / 8);
+        const key = await window.crypto.subtle.generateKey(
+            {
+                name: "RSA-OAEP",
+                modulusLength: algorithm.modulusLength,
+                publicExponent: algorithm.publicExponent,
+                hash: {name: "SHA-256"},
+            },
+            true, ["encrypt", "decrypt"]);
+        const privateKey = await window.crypto.subtle.exportKey("jwk", key.privateKey);
+        this._n = this._padArray(this._base64urlDecode(privateKey.n), this._keyBytes);
+        this._nBigInt = u8ArrayToBigInt(this._n);
+        this._e = this._padArray(this._base64urlDecode(privateKey.e), this._keyBytes);
+        this._eBigInt = u8ArrayToBigInt(this._e);
+        this._d = this._padArray(this._base64urlDecode(privateKey.d), this._keyBytes);
+        this._dBigInt = u8ArrayToBigInt(this._d);
+        this._extractable = extractable;
+    }
+
+    static async importKey(key, _algorithm, extractable, keyUsages) {
+        if (keyUsages.length !== 1 || keyUsages[0] !== "encrypt") {
+            throw new Error("only support importing RSA public key");
+        }
+        const cipher = new RSACipher;
+        await cipher._importKey(key, extractable);
+        return cipher;
+    }
+
+    async _importKey(key, extractable) {
+        const n = key.n;
+        const e = key.e;
+        if (n.length !== e.length) {
+            throw new Error("the sizes of modulus and public exponent do not match");
+        }
+        this._keyBytes = n.length;
+        this._keyLength = this._keyBytes * 8;
+        this._n = new Uint8Array(this._keyBytes);
+        this._e = new Uint8Array(this._keyBytes);
+        this._n.set(n);
+        this._e.set(e);
+        this._nBigInt = u8ArrayToBigInt(this._n);
+        this._eBigInt = u8ArrayToBigInt(this._e);
+        this._extractable = extractable;
+    }
+
+    async encrypt(_algorithm, message) {
+        if (message.length > this._keyBytes - 11) {
+            return null;
+        }
+        const ps = new Uint8Array(this._keyBytes - message.length - 3);
+        window.crypto.getRandomValues(ps);
+        for (let i = 0; i < ps.length; i++) {
+            ps[i] = Math.floor(ps[i] * 254 / 255 + 1);
+        }
+        const em = new Uint8Array(this._keyBytes);
+        em[1] = 0x02;
+        em.set(ps, 2);
+        em.set(message, ps.length + 3);
+        const emBigInt = u8ArrayToBigInt(em);
+        const c = modPow(emBigInt, this._eBigInt, this._nBigInt);
+        return bigIntToU8Array(c, this._keyBytes);
+    }
+
+    async decrypt(_algorithm, message) {
+        if (message.length !== this._keyBytes) {
+            return null;
+        }
+        const msgBigInt = u8ArrayToBigInt(message);
+        const emBigInt = modPow(msgBigInt, this._dBigInt, this._nBigInt);
+        const em = bigIntToU8Array(emBigInt, this._keyBytes);
+        if (em[0] !== 0x00 || em[1] !== 0x02) {
+            return null;
+        }
+        let i = 2;
+        for (; i < em.length; i++) {
+            if (em[i] === 0x00) {
+                break;
+            }
+        }
+        if (i === em.length) {
+            return null;
+        }
+        return em.slice(i + 1, em.length);
+    }
+
+    async exportKey() {
+        if (!this._extractable) {
+            throw new Error("key is not extractable");
+        }
+        return { n: this._n, e: this._e, d: this._d };
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/decoders/copyrect.js

@@ -0,0 +1,27 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ */
+
+export default class CopyRectDecoder {
+    decodeRect(x, y, width, height, sock, display, depth) {
+        if (sock.rQwait("COPYRECT", 4)) {
+            return false;
+        }
+
+        let deltaX = sock.rQshift16();
+        let deltaY = sock.rQshift16();
+
+        if ((width === 0) || (height === 0)) {
+            return true;
+        }
+
+        display.copyImage(deltaX, deltaY, x, y, width, height);
+
+        return true;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/decoders/h264.js

@@ -0,0 +1,321 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2024 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ */
+
+import * as Log from '../util/logging.js';
+
+export class H264Parser {
+    constructor(data) {
+        this._data = data;
+        this._index = 0;
+        this.profileIdc = null;
+        this.constraintSet = null;
+        this.levelIdc = null;
+    }
+
+    _getStartSequenceLen(index) {
+        let data = this._data;
+        if (data[index + 0] == 0 && data[index + 1] == 0 && data[index + 2] == 0 && data[index + 3] == 1) {
+            return 4;
+        }
+        if (data[index + 0] == 0 && data[index + 1] == 0 && data[index + 2] == 1) {
+            return 3;
+        }
+        return 0;
+    }
+
+    _indexOfNextNalUnit(index) {
+        let data = this._data;
+        for (let i = index; i < data.length; ++i) {
+            if (this._getStartSequenceLen(i) != 0) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    _parseSps(index) {
+        this.profileIdc = this._data[index];
+        this.constraintSet = this._data[index + 1];
+        this.levelIdc = this._data[index + 2];
+    }
+
+    _parseNalUnit(index) {
+        const firstByte = this._data[index];
+        if (firstByte & 0x80) {
+            throw new Error('H264 parsing sanity check failed, forbidden zero bit is set');
+        }
+        const unitType = firstByte & 0x1f;
+
+        switch (unitType) {
+            case 1: // coded slice, non-idr
+                return { slice: true };
+            case 5: // coded slice, idr
+                return { slice: true, key: true };
+            case 6: // sei
+                return {};
+            case 7: // sps
+                this._parseSps(index + 1);
+                return {};
+            case 8: // pps
+                return {};
+            default:
+                Log.Warn("Unhandled unit type: ", unitType);
+                break;
+        }
+        return {};
+    }
+
+    parse() {
+        const startIndex = this._index;
+        let isKey = false;
+
+        while (this._index < this._data.length) {
+            const startSequenceLen = this._getStartSequenceLen(this._index);
+            if (startSequenceLen == 0) {
+                throw new Error('Invalid start sequence in bit stream');
+            }
+
+            const { slice, key } = this._parseNalUnit(this._index + startSequenceLen);
+
+            let nextIndex = this._indexOfNextNalUnit(this._index + startSequenceLen);
+            if (nextIndex == -1) {
+                this._index = this._data.length;
+            } else {
+                this._index = nextIndex;
+            }
+
+            if (key) {
+                isKey = true;
+            }
+            if (slice) {
+                break;
+            }
+        }
+
+        if (startIndex === this._index) {
+            return null;
+        }
+
+        return {
+            frame: this._data.subarray(startIndex, this._index),
+            key: isKey,
+        };
+    }
+}
+
+export class H264Context {
+    constructor(width, height) {
+        this.lastUsed = 0;
+        this._width = width;
+        this._height = height;
+        this._profileIdc = null;
+        this._constraintSet = null;
+        this._levelIdc = null;
+        this._decoder = null;
+        this._pendingFrames = [];
+    }
+
+    _handleFrame(frame) {
+        let pending = this._pendingFrames.shift();
+        if (pending === undefined) {
+            throw new Error("Pending frame queue empty when receiving frame from decoder");
+        }
+
+        if (pending.timestamp != frame.timestamp) {
+            throw new Error("Video frame timestamp mismatch. Expected " +
+                frame.timestamp + " but but got " + pending.timestamp);
+        }
+
+        pending.frame = frame;
+        pending.ready = true;
+        pending.resolve();
+
+        if (!pending.keep) {
+            frame.close();
+        }
+    }
+
+    _handleError(e) {
+        throw new Error("Failed to decode frame: " + e.message);
+    }
+
+    _configureDecoder(profileIdc, constraintSet, levelIdc) {
+        if (this._decoder === null || this._decoder.state === 'closed') {
+            this._decoder = new VideoDecoder({
+                output: frame => this._handleFrame(frame),
+                error: e => this._handleError(e),
+            });
+        }
+        const codec = 'avc1.' +
+            profileIdc.toString(16).padStart(2, '0') +
+            constraintSet.toString(16).padStart(2, '0') +
+            levelIdc.toString(16).padStart(2, '0');
+        this._decoder.configure({
+            codec: codec,
+            codedWidth: this._width,
+            codedHeight: this._height,
+            optimizeForLatency: true,
+        });
+    }
+
+    _preparePendingFrame(timestamp) {
+        let pending = {
+            timestamp: timestamp,
+            promise: null,
+            resolve: null,
+            frame: null,
+            ready: false,
+            keep: false,
+        };
+        pending.promise = new Promise((resolve) => {
+            pending.resolve = resolve;
+        });
+        this._pendingFrames.push(pending);
+
+        return pending;
+    }
+
+    decode(payload) {
+        let parser = new H264Parser(payload);
+        let result = null;
+
+        // Ideally, this timestamp should come from the server, but we'll just
+        // approximate it instead.
+        let timestamp = Math.round(window.performance.now() * 1e3);
+
+        while (true) {
+            let encodedFrame = parser.parse();
+            if (encodedFrame === null) {
+                break;
+            }
+
+            if (parser.profileIdc !== null) {
+                self._profileIdc = parser.profileIdc;
+                self._constraintSet = parser.constraintSet;
+                self._levelIdc = parser.levelIdc;
+            }
+
+            if (this._decoder === null || this._decoder.state !== 'configured') {
+                if (!encodedFrame.key) {
+                    Log.Warn("Missing key frame. Can't decode until one arrives");
+                    continue;
+                }
+                if (self._profileIdc === null) {
+                    Log.Warn('Cannot config decoder. Have not received SPS and PPS yet.');
+                    continue;
+                }
+                this._configureDecoder(self._profileIdc, self._constraintSet,
+                                       self._levelIdc);
+            }
+
+            result = this._preparePendingFrame(timestamp);
+
+            const chunk = new EncodedVideoChunk({
+                timestamp: timestamp,
+                type: encodedFrame.key ? 'key' : 'delta',
+                data: encodedFrame.frame,
+            });
+
+            try {
+                this._decoder.decode(chunk);
+            } catch (e) {
+                Log.Warn("Failed to decode:", e);
+            }
+        }
+
+        // We only keep last frame of each payload
+        if (result !== null) {
+            result.keep = true;
+        }
+
+        return result;
+    }
+}
+
+export default class H264Decoder {
+    constructor() {
+        this._tick = 0;
+        this._contexts = {};
+    }
+
+    _contextId(x, y, width, height) {
+        return [x, y, width, height].join(',');
+    }
+
+    _findOldestContextId() {
+        let oldestTick = Number.MAX_VALUE;
+        let oldestKey = undefined;
+        for (const [key, value] of Object.entries(this._contexts)) {
+            if (value.lastUsed < oldestTick) {
+                oldestTick = value.lastUsed;
+                oldestKey = key;
+            }
+        }
+        return oldestKey;
+    }
+
+    _createContext(x, y, width, height) {
+        const maxContexts = 64;
+        if (Object.keys(this._contexts).length >= maxContexts) {
+            let oldestContextId = this._findOldestContextId();
+            delete this._contexts[oldestContextId];
+        }
+        let context = new H264Context(width, height);
+        this._contexts[this._contextId(x, y, width, height)] = context;
+        return context;
+    }
+
+    _getContext(x, y, width, height) {
+        let context = this._contexts[this._contextId(x, y, width, height)];
+        return context !== undefined ? context : this._createContext(x, y, width, height);
+    }
+
+    _resetContext(x, y, width, height) {
+        delete this._contexts[this._contextId(x, y, width, height)];
+    }
+
+    _resetAllContexts() {
+        this._contexts = {};
+    }
+
+    decodeRect(x, y, width, height, sock, display, depth) {
+        const resetContextFlag = 1;
+        const resetAllContextsFlag = 2;
+
+        if (sock.rQwait("h264 header", 8)) {
+            return false;
+        }
+
+        const length = sock.rQshift32();
+        const flags = sock.rQshift32();
+
+        if (sock.rQwait("h264 payload", length, 8)) {
+            return false;
+        }
+
+        if (flags & resetAllContextsFlag) {
+            this._resetAllContexts();
+        } else if (flags & resetContextFlag) {
+            this._resetContext(x, y, width, height);
+        }
+
+        let context = this._getContext(x, y, width, height);
+        context.lastUsed = this._tick++;
+
+        if (length !== 0) {
+            let payload = sock.rQshiftBytes(length, false);
+            let frame = context.decode(payload);
+            if (frame !== null) {
+                display.videoFrame(x, y, width, height, frame);
+            }
+        }
+
+        return true;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/decoders/hextile.js

@@ -0,0 +1,181 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ */
+
+import * as Log from '../util/logging.js';
+
+export default class HextileDecoder {
+    constructor() {
+        this._tiles = 0;
+        this._lastsubencoding = 0;
+        this._tileBuffer = new Uint8Array(16 * 16 * 4);
+    }
+
+    decodeRect(x, y, width, height, sock, display, depth) {
+        if (this._tiles === 0) {
+            this._tilesX = Math.ceil(width / 16);
+            this._tilesY = Math.ceil(height / 16);
+            this._totalTiles = this._tilesX * this._tilesY;
+            this._tiles = this._totalTiles;
+        }
+
+        while (this._tiles > 0) {
+            let bytes = 1;
+
+            if (sock.rQwait("HEXTILE", bytes)) {
+                return false;
+            }
+
+            let subencoding = sock.rQpeek8();
+            if (subencoding > 30) {  // Raw
+                throw new Error("Illegal hextile subencoding (subencoding: " +
+                            subencoding + ")");
+            }
+
+            const currTile = this._totalTiles - this._tiles;
+            const tileX = currTile % this._tilesX;
+            const tileY = Math.floor(currTile / this._tilesX);
+            const tx = x + tileX * 16;
+            const ty = y + tileY * 16;
+            const tw = Math.min(16, (x + width) - tx);
+            const th = Math.min(16, (y + height) - ty);
+
+            // Figure out how much we are expecting
+            if (subencoding & 0x01) {  // Raw
+                bytes += tw * th * 4;
+            } else {
+                if (subencoding & 0x02) {  // Background
+                    bytes += 4;
+                }
+                if (subencoding & 0x04) {  // Foreground
+                    bytes += 4;
+                }
+                if (subencoding & 0x08) {  // AnySubrects
+                    bytes++;  // Since we aren't shifting it off
+
+                    if (sock.rQwait("HEXTILE", bytes)) {
+                        return false;
+                    }
+
+                    let subrects = sock.rQpeekBytes(bytes).at(-1);
+                    if (subencoding & 0x10) {  // SubrectsColoured
+                        bytes += subrects * (4 + 2);
+                    } else {
+                        bytes += subrects * 2;
+                    }
+                }
+            }
+
+            if (sock.rQwait("HEXTILE", bytes)) {
+                return false;
+            }
+
+            // We know the encoding and have a whole tile
+            sock.rQshift8();
+            if (subencoding === 0) {
+                if (this._lastsubencoding & 0x01) {
+                    // Weird: ignore blanks are RAW
+                    Log.Debug("     Ignoring blank after RAW");
+                } else {
+                    display.fillRect(tx, ty, tw, th, this._background);
+                }
+            } else if (subencoding & 0x01) {  // Raw
+                let pixels = tw * th;
+                let data = sock.rQshiftBytes(pixels * 4, false);
+                // Max sure the image is fully opaque
+                for (let i = 0;i <  pixels;i++) {
+                    data[i * 4 + 3] = 255;
+                }
+                display.blitImage(tx, ty, tw, th, data, 0);
+            } else {
+                if (subencoding & 0x02) {  // Background
+                    this._background = new Uint8Array(sock.rQshiftBytes(4));
+                }
+                if (subencoding & 0x04) {  // Foreground
+                    this._foreground = new Uint8Array(sock.rQshiftBytes(4));
+                }
+
+                this._startTile(tx, ty, tw, th, this._background);
+                if (subencoding & 0x08) {  // AnySubrects
+                    let subrects = sock.rQshift8();
+
+                    for (let s = 0; s < subrects; s++) {
+                        let color;
+                        if (subencoding & 0x10) {  // SubrectsColoured
+                            color = sock.rQshiftBytes(4);
+                        } else {
+                            color = this._foreground;
+                        }
+                        const xy = sock.rQshift8();
+                        const sx = (xy >> 4);
+                        const sy = (xy & 0x0f);
+
+                        const wh = sock.rQshift8();
+                        const sw = (wh >> 4) + 1;
+                        const sh = (wh & 0x0f) + 1;
+
+                        this._subTile(sx, sy, sw, sh, color);
+                    }
+                }
+                this._finishTile(display);
+            }
+            this._lastsubencoding = subencoding;
+            this._tiles--;
+        }
+
+        return true;
+    }
+
+    // start updating a tile
+    _startTile(x, y, width, height, color) {
+        this._tileX = x;
+        this._tileY = y;
+        this._tileW = width;
+        this._tileH = height;
+
+        const red = color[0];
+        const green = color[1];
+        const blue = color[2];
+
+        const data = this._tileBuffer;
+        for (let i = 0; i < width * height * 4; i += 4) {
+            data[i]     = red;
+            data[i + 1] = green;
+            data[i + 2] = blue;
+            data[i + 3] = 255;
+        }
+    }
+
+    // update sub-rectangle of the current tile
+    _subTile(x, y, w, h, color) {
+        const red = color[0];
+        const green = color[1];
+        const blue = color[2];
+        const xend = x + w;
+        const yend = y + h;
+
+        const data = this._tileBuffer;
+        const width = this._tileW;
+        for (let j = y; j < yend; j++) {
+            for (let i = x; i < xend; i++) {
+                const p = (i + (j * width)) * 4;
+                data[p]     = red;
+                data[p + 1] = green;
+                data[p + 2] = blue;
+                data[p + 3] = 255;
+            }
+        }
+    }
+
+    // draw the current tile to the screen
+    _finishTile(display) {
+        display.blitImage(this._tileX, this._tileY,
+                          this._tileW, this._tileH,
+                          this._tileBuffer, 0);
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/decoders/jpeg.js

@@ -0,0 +1,146 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ */
+
+export default class JPEGDecoder {
+    constructor() {
+        // RealVNC will reuse the quantization tables
+        // and Huffman tables, so we need to cache them.
+        this._cachedQuantTables = [];
+        this._cachedHuffmanTables = [];
+
+        this._segments = [];
+    }
+
+    decodeRect(x, y, width, height, sock, display, depth) {
+        // A rect of JPEG encodings is simply a JPEG file
+        while (true) {
+            let segment = this._readSegment(sock);
+            if (segment === null) {
+                return false;
+            }
+            this._segments.push(segment);
+            // End of image?
+            if (segment[1] === 0xD9) {
+                break;
+            }
+        }
+
+        let huffmanTables = [];
+        let quantTables = [];
+        for (let segment of this._segments) {
+            let type = segment[1];
+            if (type === 0xC4) {
+                // Huffman tables
+                huffmanTables.push(segment);
+            } else if (type === 0xDB) {
+                // Quantization tables
+                quantTables.push(segment);
+            }
+        }
+
+        const sofIndex = this._segments.findIndex(
+            x => x[1] == 0xC0 || x[1] == 0xC2
+        );
+        if (sofIndex == -1) {
+            throw new Error("Illegal JPEG image without SOF");
+        }
+
+        if (quantTables.length === 0) {
+            this._segments.splice(sofIndex+1, 0,
+                                  ...this._cachedQuantTables);
+        }
+        if (huffmanTables.length === 0) {
+            this._segments.splice(sofIndex+1, 0,
+                                  ...this._cachedHuffmanTables);
+        }
+
+        let length = 0;
+        for (let segment of this._segments) {
+            length += segment.length;
+        }
+
+        let data = new Uint8Array(length);
+        length = 0;
+        for (let segment of this._segments) {
+            data.set(segment, length);
+            length += segment.length;
+        }
+
+        display.imageRect(x, y, width, height, "image/jpeg", data);
+
+        if (huffmanTables.length !== 0) {
+            this._cachedHuffmanTables = huffmanTables;
+        }
+        if (quantTables.length !== 0) {
+            this._cachedQuantTables = quantTables;
+        }
+
+        this._segments = [];
+
+        return true;
+    }
+
+    _readSegment(sock) {
+        if (sock.rQwait("JPEG", 2)) {
+            return null;
+        }
+
+        let marker = sock.rQshift8();
+        if (marker != 0xFF) {
+            throw new Error("Illegal JPEG marker received (byte: " +
+                               marker + ")");
+        }
+        let type = sock.rQshift8();
+        if (type >= 0xD0 && type <= 0xD9 || type == 0x01) {
+            // No length after marker
+            return new Uint8Array([marker, type]);
+        }
+
+        if (sock.rQwait("JPEG", 2, 2)) {
+            return null;
+        }
+
+        let length = sock.rQshift16();
+        if (length < 2) {
+            throw new Error("Illegal JPEG length received (length: " +
+                               length + ")");
+        }
+
+        if (sock.rQwait("JPEG", length-2, 4)) {
+            return null;
+        }
+
+        let extra = 0;
+        if (type === 0xDA) {
+            // start of scan
+            extra += 2;
+            while (true) {
+                if (sock.rQwait("JPEG", length-2+extra, 4)) {
+                    return null;
+                }
+                let data = sock.rQpeekBytes(length-2+extra, false);
+                if (data.at(-2) === 0xFF && data.at(-1) !== 0x00 &&
+                    !(data.at(-1) >= 0xD0 && data.at(-1) <= 0xD7)) {
+                    extra -= 2;
+                    break;
+                }
+                extra++;
+            }
+        }
+
+        let segment = new Uint8Array(2 + length + extra);
+        segment[0] = marker;
+        segment[1] = type;
+        segment[2] = length >> 8;
+        segment[3] = length;
+        segment.set(sock.rQshiftBytes(length-2+extra, false), 4);
+
+        return segment;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/decoders/raw.js

@@ -0,0 +1,59 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ */
+
+export default class RawDecoder {
+    constructor() {
+        this._lines = 0;
+    }
+
+    decodeRect(x, y, width, height, sock, display, depth) {
+        if ((width === 0) || (height === 0)) {
+            return true;
+        }
+
+        if (this._lines === 0) {
+            this._lines = height;
+        }
+
+        const pixelSize = depth == 8 ? 1 : 4;
+        const bytesPerLine = width * pixelSize;
+
+        while (this._lines > 0) {
+            if (sock.rQwait("RAW", bytesPerLine)) {
+                return false;
+            }
+
+            const curY = y + (height - this._lines);
+
+            let data = sock.rQshiftBytes(bytesPerLine, false);
+
+            // Convert data if needed
+            if (depth == 8) {
+                const newdata = new Uint8Array(width * 4);
+                for (let i = 0; i < width; i++) {
+                    newdata[i * 4 + 0] = ((data[i] >> 0) & 0x3) * 255 / 3;
+                    newdata[i * 4 + 1] = ((data[i] >> 2) & 0x3) * 255 / 3;
+                    newdata[i * 4 + 2] = ((data[i] >> 4) & 0x3) * 255 / 3;
+                    newdata[i * 4 + 3] = 255;
+                }
+                data = newdata;
+            }
+
+            // Max sure the image is fully opaque
+            for (let i = 0; i < width; i++) {
+                data[i * 4 + 3] = 255;
+            }
+
+            display.blitImage(x, curY, width, 1, data, 0);
+            this._lines--;
+        }
+
+        return true;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/decoders/rre.js

@@ -0,0 +1,44 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ */
+
+export default class RREDecoder {
+    constructor() {
+        this._subrects = 0;
+    }
+
+    decodeRect(x, y, width, height, sock, display, depth) {
+        if (this._subrects === 0) {
+            if (sock.rQwait("RRE", 4 + 4)) {
+                return false;
+            }
+
+            this._subrects = sock.rQshift32();
+
+            let color = sock.rQshiftBytes(4);  // Background
+            display.fillRect(x, y, width, height, color);
+        }
+
+        while (this._subrects > 0) {
+            if (sock.rQwait("RRE", 4 + 8)) {
+                return false;
+            }
+
+            let color = sock.rQshiftBytes(4);
+            let sx = sock.rQshift16();
+            let sy = sock.rQshift16();
+            let swidth = sock.rQshift16();
+            let sheight = sock.rQshift16();
+            display.fillRect(x + sx, y + sy, swidth, sheight, color);
+
+            this._subrects--;
+        }
+
+        return true;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/decoders/tight.js

@@ -0,0 +1,393 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * (c) 2012 Michael Tinglof, Joe Balaz, Les Piech (Mercuri.ca)
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ */
+
+import * as Log from '../util/logging.js';
+import Inflator from "../inflator.js";
+
+export default class TightDecoder {
+    constructor() {
+        this._ctl = null;
+        this._filter = null;
+        this._numColors = 0;
+        this._palette = new Uint8Array(1024);  // 256 * 4 (max palette size * max bytes-per-pixel)
+        this._len = 0;
+
+        this._zlibs = [];
+        for (let i = 0; i < 4; i++) {
+            this._zlibs[i] = new Inflator();
+        }
+    }
+
+    decodeRect(x, y, width, height, sock, display, depth) {
+        if (this._ctl === null) {
+            if (sock.rQwait("TIGHT compression-control", 1)) {
+                return false;
+            }
+
+            this._ctl = sock.rQshift8();
+
+            // Reset streams if the server requests it
+            for (let i = 0; i < 4; i++) {
+                if ((this._ctl >> i) & 1) {
+                    this._zlibs[i].reset();
+                    Log.Info("Reset zlib stream " + i);
+                }
+            }
+
+            // Figure out filter
+            this._ctl = this._ctl >> 4;
+        }
+
+        let ret;
+
+        if (this._ctl === 0x08) {
+            ret = this._fillRect(x, y, width, height,
+                                 sock, display, depth);
+        } else if (this._ctl === 0x09) {
+            ret = this._jpegRect(x, y, width, height,
+                                 sock, display, depth);
+        } else if (this._ctl === 0x0A) {
+            ret = this._pngRect(x, y, width, height,
+                                sock, display, depth);
+        } else if ((this._ctl & 0x08) == 0) {
+            ret = this._basicRect(this._ctl, x, y, width, height,
+                                  sock, display, depth);
+        } else {
+            throw new Error("Illegal tight compression received (ctl: " +
+                                   this._ctl + ")");
+        }
+
+        if (ret) {
+            this._ctl = null;
+        }
+
+        return ret;
+    }
+
+    _fillRect(x, y, width, height, sock, display, depth) {
+        if (sock.rQwait("TIGHT", 3)) {
+            return false;
+        }
+
+        let pixel = sock.rQshiftBytes(3);
+        display.fillRect(x, y, width, height, pixel, false);
+
+        return true;
+    }
+
+    _jpegRect(x, y, width, height, sock, display, depth) {
+        let data = this._readData(sock);
+        if (data === null) {
+            return false;
+        }
+
+        display.imageRect(x, y, width, height, "image/jpeg", data);
+
+        return true;
+    }
+
+    _pngRect(x, y, width, height, sock, display, depth) {
+        throw new Error("PNG received in standard Tight rect");
+    }
+
+    _basicRect(ctl, x, y, width, height, sock, display, depth) {
+        if (this._filter === null) {
+            if (ctl & 0x4) {
+                if (sock.rQwait("TIGHT", 1)) {
+                    return false;
+                }
+
+                this._filter = sock.rQshift8();
+            } else {
+                // Implicit CopyFilter
+                this._filter = 0;
+            }
+        }
+
+        let streamId = ctl & 0x3;
+
+        let ret;
+
+        switch (this._filter) {
+            case 0: // CopyFilter
+                ret = this._copyFilter(streamId, x, y, width, height,
+                                       sock, display, depth);
+                break;
+            case 1: // PaletteFilter
+                ret = this._paletteFilter(streamId, x, y, width, height,
+                                          sock, display, depth);
+                break;
+            case 2: // GradientFilter
+                ret = this._gradientFilter(streamId, x, y, width, height,
+                                           sock, display, depth);
+                break;
+            default:
+                throw new Error("Illegal tight filter received (ctl: " +
+                                       this._filter + ")");
+        }
+
+        if (ret) {
+            this._filter = null;
+        }
+
+        return ret;
+    }
+
+    _copyFilter(streamId, x, y, width, height, sock, display, depth) {
+        const uncompressedSize = width * height * 3;
+        let data;
+
+        if (uncompressedSize === 0) {
+            return true;
+        }
+
+        if (uncompressedSize < 12) {
+            if (sock.rQwait("TIGHT", uncompressedSize)) {
+                return false;
+            }
+
+            data = sock.rQshiftBytes(uncompressedSize);
+        } else {
+            data = this._readData(sock);
+            if (data === null) {
+                return false;
+            }
+
+            this._zlibs[streamId].setInput(data);
+            data = this._zlibs[streamId].inflate(uncompressedSize);
+            this._zlibs[streamId].setInput(null);
+        }
+
+        let rgbx = new Uint8Array(width * height * 4);
+        for (let i = 0, j = 0; i < width * height * 4; i += 4, j += 3) {
+            rgbx[i]     = data[j];
+            rgbx[i + 1] = data[j + 1];
+            rgbx[i + 2] = data[j + 2];
+            rgbx[i + 3] = 255;  // Alpha
+        }
+
+        display.blitImage(x, y, width, height, rgbx, 0, false);
+
+        return true;
+    }
+
+    _paletteFilter(streamId, x, y, width, height, sock, display, depth) {
+        if (this._numColors === 0) {
+            if (sock.rQwait("TIGHT palette", 1)) {
+                return false;
+            }
+
+            const numColors = sock.rQpeek8() + 1;
+            const paletteSize = numColors * 3;
+
+            if (sock.rQwait("TIGHT palette", 1 + paletteSize)) {
+                return false;
+            }
+
+            this._numColors = numColors;
+            sock.rQskipBytes(1);
+
+            sock.rQshiftTo(this._palette, paletteSize);
+        }
+
+        const bpp = (this._numColors <= 2) ? 1 : 8;
+        const rowSize = Math.floor((width * bpp + 7) / 8);
+        const uncompressedSize = rowSize * height;
+
+        let data;
+
+        if (uncompressedSize === 0) {
+            return true;
+        }
+
+        if (uncompressedSize < 12) {
+            if (sock.rQwait("TIGHT", uncompressedSize)) {
+                return false;
+            }
+
+            data = sock.rQshiftBytes(uncompressedSize);
+        } else {
+            data = this._readData(sock);
+            if (data === null) {
+                return false;
+            }
+
+            this._zlibs[streamId].setInput(data);
+            data = this._zlibs[streamId].inflate(uncompressedSize);
+            this._zlibs[streamId].setInput(null);
+        }
+
+        // Convert indexed (palette based) image data to RGB
+        if (this._numColors == 2) {
+            this._monoRect(x, y, width, height, data, this._palette, display);
+        } else {
+            this._paletteRect(x, y, width, height, data, this._palette, display);
+        }
+
+        this._numColors = 0;
+
+        return true;
+    }
+
+    _monoRect(x, y, width, height, data, palette, display) {
+        // Convert indexed (palette based) image data to RGB
+        // TODO: reduce number of calculations inside loop
+        const dest = this._getScratchBuffer(width * height * 4);
+        const w = Math.floor((width + 7) / 8);
+        const w1 = Math.floor(width / 8);
+
+        for (let y = 0; y < height; y++) {
+            let dp, sp, x;
+            for (x = 0; x < w1; x++) {
+                for (let b = 7; b >= 0; b--) {
+                    dp = (y * width + x * 8 + 7 - b) * 4;
+                    sp = (data[y * w + x] >> b & 1) * 3;
+                    dest[dp]     = palette[sp];
+                    dest[dp + 1] = palette[sp + 1];
+                    dest[dp + 2] = palette[sp + 2];
+                    dest[dp + 3] = 255;
+                }
+            }
+
+            for (let b = 7; b >= 8 - width % 8; b--) {
+                dp = (y * width + x * 8 + 7 - b) * 4;
+                sp = (data[y * w + x] >> b & 1) * 3;
+                dest[dp]     = palette[sp];
+                dest[dp + 1] = palette[sp + 1];
+                dest[dp + 2] = palette[sp + 2];
+                dest[dp + 3] = 255;
+            }
+        }
+
+        display.blitImage(x, y, width, height, dest, 0, false);
+    }
+
+    _paletteRect(x, y, width, height, data, palette, display) {
+        // Convert indexed (palette based) image data to RGB
+        const dest = this._getScratchBuffer(width * height * 4);
+        const total = width * height * 4;
+        for (let i = 0, j = 0; i < total; i += 4, j++) {
+            const sp = data[j] * 3;
+            dest[i]     = palette[sp];
+            dest[i + 1] = palette[sp + 1];
+            dest[i + 2] = palette[sp + 2];
+            dest[i + 3] = 255;
+        }
+
+        display.blitImage(x, y, width, height, dest, 0, false);
+    }
+
+    _gradientFilter(streamId, x, y, width, height, sock, display, depth) {
+        // assume the TPIXEL is 3 bytes long
+        const uncompressedSize = width * height * 3;
+        let data;
+
+        if (uncompressedSize === 0) {
+            return true;
+        }
+
+        if (uncompressedSize < 12) {
+            if (sock.rQwait("TIGHT", uncompressedSize)) {
+                return false;
+            }
+
+            data = sock.rQshiftBytes(uncompressedSize);
+        } else {
+            data = this._readData(sock);
+            if (data === null) {
+                return false;
+            }
+
+            this._zlibs[streamId].setInput(data);
+            data = this._zlibs[streamId].inflate(uncompressedSize);
+            this._zlibs[streamId].setInput(null);
+        }
+
+        let rgbx = new Uint8Array(4 * width * height);
+
+        let rgbxIndex = 0, dataIndex = 0;
+        let left = new Uint8Array(3);
+        for (let x = 0; x < width; x++) {
+            for (let c = 0; c < 3; c++) {
+                const prediction = left[c];
+                const value = data[dataIndex++] + prediction;
+                rgbx[rgbxIndex++] = value;
+                left[c] = value;
+            }
+            rgbx[rgbxIndex++] = 255;
+        }
+
+        let upperIndex = 0;
+        let upper = new Uint8Array(3),
+            upperleft = new Uint8Array(3);
+        for (let y = 1; y < height; y++) {
+            left.fill(0);
+            upperleft.fill(0);
+            for (let x = 0; x < width; x++) {
+                for (let c = 0; c < 3; c++) {
+                    upper[c] = rgbx[upperIndex++];
+                    let prediction = left[c] + upper[c] - upperleft[c];
+                    if (prediction < 0) {
+                        prediction = 0;
+                    } else if (prediction > 255) {
+                        prediction = 255;
+                    }
+                    const value = data[dataIndex++] + prediction;
+                    rgbx[rgbxIndex++] = value;
+                    upperleft[c] = upper[c];
+                    left[c] = value;
+                }
+                rgbx[rgbxIndex++] = 255;
+                upperIndex++;
+            }
+        }
+
+        display.blitImage(x, y, width, height, rgbx, 0, false);
+
+        return true;
+    }
+
+    _readData(sock) {
+        if (this._len === 0) {
+            if (sock.rQwait("TIGHT", 3)) {
+                return null;
+            }
+
+            let byte;
+
+            byte = sock.rQshift8();
+            this._len = byte & 0x7f;
+            if (byte & 0x80) {
+                byte = sock.rQshift8();
+                this._len |= (byte & 0x7f) << 7;
+                if (byte & 0x80) {
+                    byte = sock.rQshift8();
+                    this._len |= byte << 14;
+                }
+            }
+        }
+
+        if (sock.rQwait("TIGHT", this._len)) {
+            return null;
+        }
+
+        let data = sock.rQshiftBytes(this._len, false);
+        this._len = 0;
+
+        return data;
+    }
+
+    _getScratchBuffer(size) {
+        if (!this._scratchBuffer || (this._scratchBuffer.length < size)) {
+            this._scratchBuffer = new Uint8Array(size);
+        }
+        return this._scratchBuffer;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/decoders/tightpng.js

@@ -0,0 +1,27 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ */
+
+import TightDecoder from './tight.js';
+
+export default class TightPNGDecoder extends TightDecoder {
+    _pngRect(x, y, width, height, sock, display, depth) {
+        let data = this._readData(sock);
+        if (data === null) {
+            return false;
+        }
+
+        display.imageRect(x, y, width, height, "image/png", data);
+
+        return true;
+    }
+
+    _basicRect(ctl, x, y, width, height, sock, display, depth) {
+        throw new Error("BasicCompression received in TightPNG rect");
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/decoders/zlib.js

@@ -0,0 +1,51 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2024 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ */
+
+import Inflator from "../inflator.js";
+
+export default class ZlibDecoder {
+    constructor() {
+        this._zlib = new Inflator();
+        this._length = 0;
+    }
+
+    decodeRect(x, y, width, height, sock, display, depth) {
+        if ((width === 0) || (height === 0)) {
+            return true;
+        }
+
+        if (this._length === 0) {
+            if (sock.rQwait("ZLIB", 4)) {
+                return false;
+            }
+
+            this._length = sock.rQshift32();
+        }
+
+        if (sock.rQwait("ZLIB", this._length)) {
+            return false;
+        }
+
+        let data = new Uint8Array(sock.rQshiftBytes(this._length, false));
+        this._length = 0;
+
+        this._zlib.setInput(data);
+        data = this._zlib.inflate(width * height * 4);
+        this._zlib.setInput(null);
+
+        // Max sure the image is fully opaque
+        for (let i = 0; i < width * height; i++) {
+            data[i * 4 + 3] = 255;
+        }
+
+        display.blitImage(x, y, width, height, data, 0);
+
+        return true;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/decoders/zrle.js

@@ -0,0 +1,185 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2021 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ */
+
+import Inflate from "../inflator.js";
+
+const ZRLE_TILE_WIDTH = 64;
+const ZRLE_TILE_HEIGHT = 64;
+
+export default class ZRLEDecoder {
+    constructor() {
+        this._length = 0;
+        this._inflator = new Inflate();
+
+        this._pixelBuffer = new Uint8Array(ZRLE_TILE_WIDTH * ZRLE_TILE_HEIGHT * 4);
+        this._tileBuffer = new Uint8Array(ZRLE_TILE_WIDTH * ZRLE_TILE_HEIGHT * 4);
+    }
+
+    decodeRect(x, y, width, height, sock, display, depth) {
+        if (this._length === 0) {
+            if (sock.rQwait("ZLib data length", 4)) {
+                return false;
+            }
+            this._length = sock.rQshift32();
+        }
+        if (sock.rQwait("Zlib data", this._length)) {
+            return false;
+        }
+
+        const data = sock.rQshiftBytes(this._length, false);
+
+        this._inflator.setInput(data);
+
+        for (let ty = y; ty < y + height; ty += ZRLE_TILE_HEIGHT) {
+            let th = Math.min(ZRLE_TILE_HEIGHT, y + height - ty);
+
+            for (let tx = x; tx < x + width; tx += ZRLE_TILE_WIDTH) {
+                let tw = Math.min(ZRLE_TILE_WIDTH, x + width - tx);
+
+                const tileSize = tw * th;
+                const subencoding = this._inflator.inflate(1)[0];
+                if (subencoding === 0) {
+                    // raw data
+                    const data = this._readPixels(tileSize);
+                    display.blitImage(tx, ty, tw, th, data, 0, false);
+                } else if (subencoding === 1) {
+                    // solid
+                    const background = this._readPixels(1);
+                    display.fillRect(tx, ty, tw, th, [background[0], background[1], background[2]]);
+                } else if (subencoding >= 2 && subencoding <= 16) {
+                    const data = this._decodePaletteTile(subencoding, tileSize, tw, th);
+                    display.blitImage(tx, ty, tw, th, data, 0, false);
+                } else if (subencoding === 128) {
+                    const data = this._decodeRLETile(tileSize);
+                    display.blitImage(tx, ty, tw, th, data, 0, false);
+                } else if (subencoding >= 130 && subencoding <= 255) {
+                    const data = this._decodeRLEPaletteTile(subencoding - 128, tileSize);
+                    display.blitImage(tx, ty, tw, th, data, 0, false);
+                } else {
+                    throw new Error('Unknown subencoding: ' + subencoding);
+                }
+            }
+        }
+        this._length = 0;
+        return true;
+    }
+
+    _getBitsPerPixelInPalette(paletteSize) {
+        if (paletteSize <= 2) {
+            return 1;
+        } else if (paletteSize <= 4) {
+            return 2;
+        } else if (paletteSize <= 16) {
+            return 4;
+        }
+    }
+
+    _readPixels(pixels) {
+        let data = this._pixelBuffer;
+        const buffer = this._inflator.inflate(3*pixels);
+        for (let i = 0, j = 0; i < pixels*4; i += 4, j += 3) {
+            data[i]     = buffer[j];
+            data[i + 1] = buffer[j + 1];
+            data[i + 2] = buffer[j + 2];
+            data[i + 3] = 255;  // Add the Alpha
+        }
+        return data;
+    }
+
+    _decodePaletteTile(paletteSize, tileSize, tilew, tileh) {
+        const data = this._tileBuffer;
+        const palette = this._readPixels(paletteSize);
+        const bitsPerPixel = this._getBitsPerPixelInPalette(paletteSize);
+        const mask = (1 << bitsPerPixel) - 1;
+
+        let offset = 0;
+        let encoded = this._inflator.inflate(1)[0];
+
+        for (let y=0; y<tileh; y++) {
+            let shift = 8-bitsPerPixel;
+            for (let x=0; x<tilew; x++) {
+                if (shift<0) {
+                    shift=8-bitsPerPixel;
+                    encoded = this._inflator.inflate(1)[0];
+                }
+                let indexInPalette = (encoded>>shift) & mask;
+
+                data[offset] = palette[indexInPalette * 4];
+                data[offset + 1] = palette[indexInPalette * 4 + 1];
+                data[offset + 2] = palette[indexInPalette * 4 + 2];
+                data[offset + 3] = palette[indexInPalette * 4 + 3];
+                offset += 4;
+                shift-=bitsPerPixel;
+            }
+            if (shift<8-bitsPerPixel && y<tileh-1) {
+                encoded =  this._inflator.inflate(1)[0];
+            }
+        }
+        return data;
+    }
+
+    _decodeRLETile(tileSize) {
+        const data = this._tileBuffer;
+        let i = 0;
+        while (i < tileSize) {
+            const pixel = this._readPixels(1);
+            const length = this._readRLELength();
+            for (let j = 0; j < length; j++) {
+                data[i * 4] = pixel[0];
+                data[i * 4 + 1] = pixel[1];
+                data[i * 4 + 2] = pixel[2];
+                data[i * 4 + 3] = pixel[3];
+                i++;
+            }
+        }
+        return data;
+    }
+
+    _decodeRLEPaletteTile(paletteSize, tileSize) {
+        const data = this._tileBuffer;
+
+        // palette
+        const palette = this._readPixels(paletteSize);
+
+        let offset = 0;
+        while (offset < tileSize) {
+            let indexInPalette = this._inflator.inflate(1)[0];
+            let length = 1;
+            if (indexInPalette >= 128) {
+                indexInPalette -= 128;
+                length = this._readRLELength();
+            }
+            if (indexInPalette > paletteSize) {
+                throw new Error('Too big index in palette: ' + indexInPalette + ', palette size: ' + paletteSize);
+            }
+            if (offset + length > tileSize) {
+                throw new Error('Too big rle length in palette mode: ' + length + ', allowed length is: ' + (tileSize - offset));
+            }
+
+            for (let j = 0; j < length; j++) {
+                data[offset * 4] = palette[indexInPalette * 4];
+                data[offset * 4 + 1] = palette[indexInPalette * 4 + 1];
+                data[offset * 4 + 2] = palette[indexInPalette * 4 + 2];
+                data[offset * 4 + 3] = palette[indexInPalette * 4 + 3];
+                offset++;
+            }
+        }
+        return data;
+    }
+
+    _readRLELength() {
+        let length = 0;
+        let current = 0;
+        do {
+            current = this._inflator.inflate(1)[0];
+            length += current;
+        } while (current === 255);
+        return length + 1;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/deflator.js

@@ -0,0 +1,84 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2020 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+import { deflateInit, deflate } from "../vendor/pako/lib/zlib/deflate.js";
+import { Z_FULL_FLUSH, Z_DEFAULT_COMPRESSION } from "../vendor/pako/lib/zlib/deflate.js";
+import ZStream from "../vendor/pako/lib/zlib/zstream.js";
+
+export default class Deflator {
+    constructor() {
+        this.strm = new ZStream();
+        this.chunkSize = 1024 * 10 * 10;
+        this.outputBuffer = new Uint8Array(this.chunkSize);
+
+        deflateInit(this.strm, Z_DEFAULT_COMPRESSION);
+    }
+
+    deflate(inData) {
+        /* eslint-disable camelcase */
+        this.strm.input = inData;
+        this.strm.avail_in = this.strm.input.length;
+        this.strm.next_in = 0;
+        this.strm.output = this.outputBuffer;
+        this.strm.avail_out = this.chunkSize;
+        this.strm.next_out = 0;
+        /* eslint-enable camelcase */
+
+        let lastRet = deflate(this.strm, Z_FULL_FLUSH);
+        let outData = new Uint8Array(this.strm.output.buffer, 0, this.strm.next_out);
+
+        if (lastRet < 0) {
+            throw new Error("zlib deflate failed");
+        }
+
+        if (this.strm.avail_in > 0) {
+            // Read chunks until done
+
+            let chunks = [outData];
+            let totalLen = outData.length;
+            do {
+                /* eslint-disable camelcase */
+                this.strm.output = new Uint8Array(this.chunkSize);
+                this.strm.next_out = 0;
+                this.strm.avail_out = this.chunkSize;
+                /* eslint-enable camelcase */
+
+                lastRet = deflate(this.strm, Z_FULL_FLUSH);
+
+                if (lastRet < 0) {
+                    throw new Error("zlib deflate failed");
+                }
+
+                let chunk = new Uint8Array(this.strm.output.buffer, 0, this.strm.next_out);
+                totalLen += chunk.length;
+                chunks.push(chunk);
+            } while (this.strm.avail_in > 0);
+
+            // Combine chunks into a single data
+
+            let newData = new Uint8Array(totalLen);
+            let offset = 0;
+
+            for (let i = 0; i < chunks.length; i++) {
+                newData.set(chunks[i], offset);
+                offset += chunks[i].length;
+            }
+
+            outData = newData;
+        }
+
+        /* eslint-disable camelcase */
+        this.strm.input = null;
+        this.strm.avail_in = 0;
+        this.strm.next_in = 0;
+        /* eslint-enable camelcase */
+
+        return outData;
+    }
+
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/display.js

@@ -0,0 +1,575 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+import * as Log from './util/logging.js';
+import Base64 from "./base64.js";
+import { toSigned32bit } from './util/int.js';
+
+export default class Display {
+    constructor(target) {
+        this._drawCtx = null;
+
+        this._renderQ = [];  // queue drawing actions for in-oder rendering
+        this._flushPromise = null;
+
+        // the full frame buffer (logical canvas) size
+        this._fbWidth = 0;
+        this._fbHeight = 0;
+
+        this._prevDrawStyle = "";
+
+        Log.Debug(">> Display.constructor");
+
+        // The visible canvas
+        this._target = target;
+
+        if (!this._target) {
+            throw new Error("Target must be set");
+        }
+
+        if (typeof this._target === 'string') {
+            throw new Error('target must be a DOM element');
+        }
+
+        if (!this._target.getContext) {
+            throw new Error("no getContext method");
+        }
+
+        this._targetCtx = this._target.getContext('2d');
+
+        // the visible canvas viewport (i.e. what actually gets seen)
+        this._viewportLoc = { 'x': 0, 'y': 0, 'w': this._target.width, 'h': this._target.height };
+
+        // The hidden canvas, where we do the actual rendering
+        this._backbuffer = document.createElement('canvas');
+        this._drawCtx = this._backbuffer.getContext('2d');
+
+        this._damageBounds = { left: 0, top: 0,
+                               right: this._backbuffer.width,
+                               bottom: this._backbuffer.height };
+
+        Log.Debug("User Agent: " + navigator.userAgent);
+
+        Log.Debug("<< Display.constructor");
+
+        // ===== PROPERTIES =====
+
+        this._scale = 1.0;
+        this._clipViewport = false;
+    }
+
+    // ===== PROPERTIES =====
+
+    get scale() { return this._scale; }
+    set scale(scale) {
+        this._rescale(scale);
+    }
+
+    get clipViewport() { return this._clipViewport; }
+    set clipViewport(viewport) {
+        this._clipViewport = viewport;
+        // May need to readjust the viewport dimensions
+        const vp = this._viewportLoc;
+        this.viewportChangeSize(vp.w, vp.h);
+        this.viewportChangePos(0, 0);
+    }
+
+    get width() {
+        return this._fbWidth;
+    }
+
+    get height() {
+        return this._fbHeight;
+    }
+
+    // ===== PUBLIC METHODS =====
+
+    viewportChangePos(deltaX, deltaY) {
+        const vp = this._viewportLoc;
+        deltaX = Math.floor(deltaX);
+        deltaY = Math.floor(deltaY);
+
+        if (!this._clipViewport) {
+            deltaX = -vp.w;  // clamped later of out of bounds
+            deltaY = -vp.h;
+        }
+
+        const vx2 = vp.x + vp.w - 1;
+        const vy2 = vp.y + vp.h - 1;
+
+        // Position change
+
+        if (deltaX < 0 && vp.x + deltaX < 0) {
+            deltaX = -vp.x;
+        }
+        if (vx2 + deltaX >= this._fbWidth) {
+            deltaX -= vx2 + deltaX - this._fbWidth + 1;
+        }
+
+        if (vp.y + deltaY < 0) {
+            deltaY = -vp.y;
+        }
+        if (vy2 + deltaY >= this._fbHeight) {
+            deltaY -= (vy2 + deltaY - this._fbHeight + 1);
+        }
+
+        if (deltaX === 0 && deltaY === 0) {
+            return;
+        }
+        Log.Debug("viewportChange deltaX: " + deltaX + ", deltaY: " + deltaY);
+
+        vp.x += deltaX;
+        vp.y += deltaY;
+
+        this._damage(vp.x, vp.y, vp.w, vp.h);
+
+        this.flip();
+    }
+
+    viewportChangeSize(width, height) {
+
+        if (!this._clipViewport ||
+            typeof(width) === "undefined" ||
+            typeof(height) === "undefined") {
+
+            Log.Debug("Setting viewport to full display region");
+            width = this._fbWidth;
+            height = this._fbHeight;
+        }
+
+        width = Math.floor(width);
+        height = Math.floor(height);
+
+        if (width > this._fbWidth) {
+            width = this._fbWidth;
+        }
+        if (height > this._fbHeight) {
+            height = this._fbHeight;
+        }
+
+        const vp = this._viewportLoc;
+        if (vp.w !== width || vp.h !== height) {
+            vp.w = width;
+            vp.h = height;
+
+            const canvas = this._target;
+            canvas.width = width;
+            canvas.height = height;
+
+            // The position might need to be updated if we've grown
+            this.viewportChangePos(0, 0);
+
+            this._damage(vp.x, vp.y, vp.w, vp.h);
+            this.flip();
+
+            // Update the visible size of the target canvas
+            this._rescale(this._scale);
+        }
+    }
+
+    absX(x) {
+        if (this._scale === 0) {
+            return 0;
+        }
+        return toSigned32bit(x / this._scale + this._viewportLoc.x);
+    }
+
+    absY(y) {
+        if (this._scale === 0) {
+            return 0;
+        }
+        return toSigned32bit(y / this._scale + this._viewportLoc.y);
+    }
+
+    resize(width, height) {
+        this._prevDrawStyle = "";
+
+        this._fbWidth = width;
+        this._fbHeight = height;
+
+        const canvas = this._backbuffer;
+        if (canvas.width !== width || canvas.height !== height) {
+
+            // We have to save the canvas data since changing the size will clear it
+            let saveImg = null;
+            if (canvas.width > 0 && canvas.height > 0) {
+                saveImg = this._drawCtx.getImageData(0, 0, canvas.width, canvas.height);
+            }
+
+            if (canvas.width !== width) {
+                canvas.width = width;
+            }
+            if (canvas.height !== height) {
+                canvas.height = height;
+            }
+
+            if (saveImg) {
+                this._drawCtx.putImageData(saveImg, 0, 0);
+            }
+        }
+
+        // Readjust the viewport as it may be incorrectly sized
+        // and positioned
+        const vp = this._viewportLoc;
+        this.viewportChangeSize(vp.w, vp.h);
+        this.viewportChangePos(0, 0);
+    }
+
+    getImageData() {
+        return this._drawCtx.getImageData(0, 0, this.width, this.height);
+    }
+
+    toDataURL(type, encoderOptions) {
+        return this._backbuffer.toDataURL(type, encoderOptions);
+    }
+
+    toBlob(callback, type, quality) {
+        return this._backbuffer.toBlob(callback, type, quality);
+    }
+
+    // Track what parts of the visible canvas that need updating
+    _damage(x, y, w, h) {
+        if (x < this._damageBounds.left) {
+            this._damageBounds.left = x;
+        }
+        if (y < this._damageBounds.top) {
+            this._damageBounds.top = y;
+        }
+        if ((x + w) > this._damageBounds.right) {
+            this._damageBounds.right = x + w;
+        }
+        if ((y + h) > this._damageBounds.bottom) {
+            this._damageBounds.bottom = y + h;
+        }
+    }
+
+    // Update the visible canvas with the contents of the
+    // rendering canvas
+    flip(fromQueue) {
+        if (this._renderQ.length !== 0 && !fromQueue) {
+            this._renderQPush({
+                'type': 'flip'
+            });
+        } else {
+            let x = this._damageBounds.left;
+            let y = this._damageBounds.top;
+            let w = this._damageBounds.right - x;
+            let h = this._damageBounds.bottom - y;
+
+            let vx = x - this._viewportLoc.x;
+            let vy = y - this._viewportLoc.y;
+
+            if (vx < 0) {
+                w += vx;
+                x -= vx;
+                vx = 0;
+            }
+            if (vy < 0) {
+                h += vy;
+                y -= vy;
+                vy = 0;
+            }
+
+            if ((vx + w) > this._viewportLoc.w) {
+                w = this._viewportLoc.w - vx;
+            }
+            if ((vy + h) > this._viewportLoc.h) {
+                h = this._viewportLoc.h - vy;
+            }
+
+            if ((w > 0) && (h > 0)) {
+                // FIXME: We may need to disable image smoothing here
+                //        as well (see copyImage()), but we haven't
+                //        noticed any problem yet.
+                this._targetCtx.drawImage(this._backbuffer,
+                                          x, y, w, h,
+                                          vx, vy, w, h);
+            }
+
+            this._damageBounds.left = this._damageBounds.top = 65535;
+            this._damageBounds.right = this._damageBounds.bottom = 0;
+        }
+    }
+
+    pending() {
+        return this._renderQ.length > 0;
+    }
+
+    flush() {
+        if (this._renderQ.length === 0) {
+            return Promise.resolve();
+        } else {
+            if (this._flushPromise === null) {
+                this._flushPromise = new Promise((resolve) => {
+                    this._flushResolve = resolve;
+                });
+            }
+            return this._flushPromise;
+        }
+    }
+
+    fillRect(x, y, width, height, color, fromQueue) {
+        if (this._renderQ.length !== 0 && !fromQueue) {
+            this._renderQPush({
+                'type': 'fill',
+                'x': x,
+                'y': y,
+                'width': width,
+                'height': height,
+                'color': color
+            });
+        } else {
+            this._setFillColor(color);
+            this._drawCtx.fillRect(x, y, width, height);
+            this._damage(x, y, width, height);
+        }
+    }
+
+    copyImage(oldX, oldY, newX, newY, w, h, fromQueue) {
+        if (this._renderQ.length !== 0 && !fromQueue) {
+            this._renderQPush({
+                'type': 'copy',
+                'oldX': oldX,
+                'oldY': oldY,
+                'x': newX,
+                'y': newY,
+                'width': w,
+                'height': h,
+            });
+        } else {
+            // Due to this bug among others [1] we need to disable the image-smoothing to
+            // avoid getting a blur effect when copying data.
+            //
+            // 1. https://bugzilla.mozilla.org/show_bug.cgi?id=1194719
+            //
+            // We need to set these every time since all properties are reset
+            // when the the size is changed
+            this._drawCtx.mozImageSmoothingEnabled = false;
+            this._drawCtx.webkitImageSmoothingEnabled = false;
+            this._drawCtx.msImageSmoothingEnabled = false;
+            this._drawCtx.imageSmoothingEnabled = false;
+
+            this._drawCtx.drawImage(this._backbuffer,
+                                    oldX, oldY, w, h,
+                                    newX, newY, w, h);
+            this._damage(newX, newY, w, h);
+        }
+    }
+
+    imageRect(x, y, width, height, mime, arr) {
+        /* The internal logic cannot handle empty images, so bail early */
+        if ((width === 0) || (height === 0)) {
+            return;
+        }
+
+        const img = new Image();
+        img.src = "data: " + mime + ";base64," + Base64.encode(arr);
+
+        this._renderQPush({
+            'type': 'img',
+            'img': img,
+            'x': x,
+            'y': y,
+            'width': width,
+            'height': height
+        });
+    }
+
+    videoFrame(x, y, width, height, frame) {
+        this._renderQPush({
+            'type': 'frame',
+            'frame': frame,
+            'x': x,
+            'y': y,
+            'width': width,
+            'height': height
+        });
+    }
+
+    blitImage(x, y, width, height, arr, offset, fromQueue) {
+        if (this._renderQ.length !== 0 && !fromQueue) {
+            // NB(directxman12): it's technically more performant here to use preallocated arrays,
+            // but it's a lot of extra work for not a lot of payoff -- if we're using the render queue,
+            // this probably isn't getting called *nearly* as much
+            const newArr = new Uint8Array(width * height * 4);
+            newArr.set(new Uint8Array(arr.buffer, 0, newArr.length));
+            this._renderQPush({
+                'type': 'blit',
+                'data': newArr,
+                'x': x,
+                'y': y,
+                'width': width,
+                'height': height,
+            });
+        } else {
+            // NB(directxman12): arr must be an Type Array view
+            let data = new Uint8ClampedArray(arr.buffer,
+                                             arr.byteOffset + offset,
+                                             width * height * 4);
+            let img = new ImageData(data, width, height);
+            this._drawCtx.putImageData(img, x, y);
+            this._damage(x, y, width, height);
+        }
+    }
+
+    drawImage(img, ...args) {
+        this._drawCtx.drawImage(img, ...args);
+
+        if (args.length <= 4) {
+            const [x, y] = args;
+            this._damage(x, y, img.width, img.height);
+        } else {
+            const [,, sw, sh, dx, dy] = args;
+            this._damage(dx, dy, sw, sh);
+        }
+    }
+
+    autoscale(containerWidth, containerHeight) {
+        let scaleRatio;
+
+        if (containerWidth === 0 || containerHeight === 0) {
+            scaleRatio = 0;
+
+        } else {
+
+            const vp = this._viewportLoc;
+            const targetAspectRatio = containerWidth / containerHeight;
+            const fbAspectRatio = vp.w / vp.h;
+
+            if (fbAspectRatio >= targetAspectRatio) {
+                scaleRatio = containerWidth / vp.w;
+            } else {
+                scaleRatio = containerHeight / vp.h;
+            }
+        }
+
+        this._rescale(scaleRatio);
+    }
+
+    // ===== PRIVATE METHODS =====
+
+    _rescale(factor) {
+        this._scale = factor;
+        const vp = this._viewportLoc;
+
+        // NB(directxman12): If you set the width directly, or set the
+        //                   style width to a number, the canvas is cleared.
+        //                   However, if you set the style width to a string
+        //                   ('NNNpx'), the canvas is scaled without clearing.
+        const width = factor * vp.w + 'px';
+        const height = factor * vp.h + 'px';
+
+        if ((this._target.style.width !== width) ||
+            (this._target.style.height !== height)) {
+            this._target.style.width = width;
+            this._target.style.height = height;
+        }
+    }
+
+    _setFillColor(color) {
+        const newStyle = 'rgb(' + color[0] + ',' + color[1] + ',' + color[2] + ')';
+        if (newStyle !== this._prevDrawStyle) {
+            this._drawCtx.fillStyle = newStyle;
+            this._prevDrawStyle = newStyle;
+        }
+    }
+
+    _renderQPush(action) {
+        this._renderQ.push(action);
+        if (this._renderQ.length === 1) {
+            // If this can be rendered immediately it will be, otherwise
+            // the scanner will wait for the relevant event
+            this._scanRenderQ();
+        }
+    }
+
+    _resumeRenderQ() {
+        // "this" is the object that is ready, not the
+        // display object
+        this.removeEventListener('load', this._noVNCDisplay._resumeRenderQ);
+        this._noVNCDisplay._scanRenderQ();
+    }
+
+    _scanRenderQ() {
+        let ready = true;
+        while (ready && this._renderQ.length > 0) {
+            const a = this._renderQ[0];
+            switch (a.type) {
+                case 'flip':
+                    this.flip(true);
+                    break;
+                case 'copy':
+                    this.copyImage(a.oldX, a.oldY, a.x, a.y, a.width, a.height, true);
+                    break;
+                case 'fill':
+                    this.fillRect(a.x, a.y, a.width, a.height, a.color, true);
+                    break;
+                case 'blit':
+                    this.blitImage(a.x, a.y, a.width, a.height, a.data, 0, true);
+                    break;
+                case 'img':
+                    if (a.img.complete) {
+                        if (a.img.width !== a.width || a.img.height !== a.height) {
+                            Log.Error("Decoded image has incorrect dimensions. Got " +
+                                      a.img.width + "x" + a.img.height + ". Expected " +
+                                      a.width + "x" + a.height + ".");
+                            return;
+                        }
+                        this.drawImage(a.img, a.x, a.y);
+                    } else {
+                        a.img._noVNCDisplay = this;
+                        a.img.addEventListener('load', this._resumeRenderQ);
+                        // We need to wait for this image to 'load'
+                        // to keep things in-order
+                        ready = false;
+                    }
+                    break;
+                case 'frame':
+                    if (a.frame.ready) {
+                        // The encoded frame may be larger than the rect due to
+                        // limitations of the encoder, so we need to crop the
+                        // frame.
+                        let frame = a.frame.frame;
+                        if (frame.codedWidth < a.width || frame.codedHeight < a.height) {
+                            Log.Warn("Decoded video frame does not cover its full rectangle area. Expecting at least " +
+                                      a.width + "x" + a.height + " but got " +
+                                      frame.codedWidth + "x" + frame.codedHeight);
+                        }
+                        const sx = 0;
+                        const sy = 0;
+                        const sw = a.width;
+                        const sh = a.height;
+                        const dx = a.x;
+                        const dy = a.y;
+                        const dw = sw;
+                        const dh = sh;
+                        this.drawImage(frame, sx, sy, sw, sh, dx, dy, dw, dh);
+                        frame.close();
+                    } else {
+                        let display = this;
+                        a.frame.promise.then(() => {
+                            display._scanRenderQ();
+                        });
+                        ready = false;
+                    }
+                    break;
+            }
+
+            if (ready) {
+                this._renderQ.shift();
+            }
+        }
+
+        if (this._renderQ.length === 0 &&
+            this._flushPromise !== null) {
+            this._flushResolve();
+            this._flushPromise = null;
+            this._flushResolve = null;
+        }
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/encodings.js

@@ -0,0 +1,54 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+export const encodings = {
+    encodingRaw: 0,
+    encodingCopyRect: 1,
+    encodingRRE: 2,
+    encodingHextile: 5,
+    encodingZlib: 6,
+    encodingTight: 7,
+    encodingZRLE: 16,
+    encodingTightPNG: -260,
+    encodingJPEG: 21,
+    encodingH264: 50,
+
+    pseudoEncodingQualityLevel9: -23,
+    pseudoEncodingQualityLevel0: -32,
+    pseudoEncodingDesktopSize: -223,
+    pseudoEncodingLastRect: -224,
+    pseudoEncodingCursor: -239,
+    pseudoEncodingQEMUExtendedKeyEvent: -258,
+    pseudoEncodingQEMULedEvent: -261,
+    pseudoEncodingDesktopName: -307,
+    pseudoEncodingExtendedDesktopSize: -308,
+    pseudoEncodingXvp: -309,
+    pseudoEncodingFence: -312,
+    pseudoEncodingContinuousUpdates: -313,
+    pseudoEncodingExtendedMouseButtons: -316,
+    pseudoEncodingCompressLevel9: -247,
+    pseudoEncodingCompressLevel0: -256,
+    pseudoEncodingVMwareCursor: 0x574d5664,
+    pseudoEncodingExtendedClipboard: 0xc0a1e5ce
+};
+
+export function encodingName(num) {
+    switch (num) {
+        case encodings.encodingRaw:      return "Raw";
+        case encodings.encodingCopyRect: return "CopyRect";
+        case encodings.encodingRRE:      return "RRE";
+        case encodings.encodingHextile:  return "Hextile";
+        case encodings.encodingZlib:     return "Zlib";
+        case encodings.encodingTight:    return "Tight";
+        case encodings.encodingZRLE:     return "ZRLE";
+        case encodings.encodingTightPNG: return "TightPNG";
+        case encodings.encodingJPEG:     return "JPEG";
+        case encodings.encodingH264:     return "H.264";
+        default:                         return "[unknown encoding " + num + "]";
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/inflator.js

@@ -0,0 +1,65 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2020 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+import { inflateInit, inflate, inflateReset } from "../vendor/pako/lib/zlib/inflate.js";
+import ZStream from "../vendor/pako/lib/zlib/zstream.js";
+
+export default class Inflate {
+    constructor() {
+        this.strm = new ZStream();
+        this.chunkSize = 1024 * 10 * 10;
+        this.strm.output = new Uint8Array(this.chunkSize);
+
+        inflateInit(this.strm);
+    }
+
+    setInput(data) {
+        if (!data) {
+            //FIXME: flush remaining data.
+            /* eslint-disable camelcase */
+            this.strm.input = null;
+            this.strm.avail_in = 0;
+            this.strm.next_in = 0;
+        } else {
+            this.strm.input = data;
+            this.strm.avail_in = this.strm.input.length;
+            this.strm.next_in = 0;
+            /* eslint-enable camelcase */
+        }
+    }
+
+    inflate(expected) {
+        // resize our output buffer if it's too small
+        // (we could just use multiple chunks, but that would cause an extra
+        // allocation each time to flatten the chunks)
+        if (expected > this.chunkSize) {
+            this.chunkSize = expected;
+            this.strm.output = new Uint8Array(this.chunkSize);
+        }
+
+        /* eslint-disable camelcase */
+        this.strm.next_out = 0;
+        this.strm.avail_out = expected;
+        /* eslint-enable camelcase */
+
+        let ret = inflate(this.strm, 0); // Flush argument not used.
+        if (ret < 0) {
+            throw new Error("zlib inflate failed");
+        }
+
+        if (this.strm.next_out != expected) {
+            throw new Error("Incomplete zlib block");
+        }
+
+        return new Uint8Array(this.strm.output.buffer, 0, this.strm.next_out);
+    }
+
+    reset() {
+        inflateReset(this.strm);
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/input/domkeytable.js

@@ -0,0 +1,311 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2018 The noVNC authors
+ * Licensed under MPL 2.0 or any later version (see LICENSE.txt)
+ */
+
+import KeyTable from "./keysym.js";
+
+/*
+ * Mapping between HTML key values and VNC/X11 keysyms for "special"
+ * keys that cannot be handled via their Unicode codepoint.
+ *
+ * See https://www.w3.org/TR/uievents-key/ for possible values.
+ */
+
+const DOMKeyTable = {};
+
+function addStandard(key, standard) {
+    if (standard === undefined) throw new Error("Undefined keysym for key \"" + key + "\"");
+    if (key in DOMKeyTable) throw new Error("Duplicate entry for key \"" + key + "\"");
+    DOMKeyTable[key] = [standard, standard, standard, standard];
+}
+
+function addLeftRight(key, left, right) {
+    if (left === undefined) throw new Error("Undefined keysym for key \"" + key + "\"");
+    if (right === undefined) throw new Error("Undefined keysym for key \"" + key + "\"");
+    if (key in DOMKeyTable) throw new Error("Duplicate entry for key \"" + key + "\"");
+    DOMKeyTable[key] = [left, left, right, left];
+}
+
+function addNumpad(key, standard, numpad) {
+    if (standard === undefined) throw new Error("Undefined keysym for key \"" + key + "\"");
+    if (numpad === undefined) throw new Error("Undefined keysym for key \"" + key + "\"");
+    if (key in DOMKeyTable) throw new Error("Duplicate entry for key \"" + key + "\"");
+    DOMKeyTable[key] = [standard, standard, standard, numpad];
+}
+
+// 3.2. Modifier Keys
+
+addLeftRight("Alt", KeyTable.XK_Alt_L, KeyTable.XK_Alt_R);
+addStandard("AltGraph", KeyTable.XK_ISO_Level3_Shift);
+addStandard("CapsLock", KeyTable.XK_Caps_Lock);
+addLeftRight("Control", KeyTable.XK_Control_L, KeyTable.XK_Control_R);
+// - Fn
+// - FnLock
+addLeftRight("Meta", KeyTable.XK_Super_L, KeyTable.XK_Super_R);
+addStandard("NumLock", KeyTable.XK_Num_Lock);
+addStandard("ScrollLock", KeyTable.XK_Scroll_Lock);
+addLeftRight("Shift", KeyTable.XK_Shift_L, KeyTable.XK_Shift_R);
+// - Symbol
+// - SymbolLock
+// - Hyper
+// - Super
+
+// 3.3. Whitespace Keys
+
+addNumpad("Enter", KeyTable.XK_Return, KeyTable.XK_KP_Enter);
+addStandard("Tab", KeyTable.XK_Tab);
+addNumpad(" ", KeyTable.XK_space, KeyTable.XK_KP_Space);
+
+// 3.4. Navigation Keys
+
+addNumpad("ArrowDown", KeyTable.XK_Down, KeyTable.XK_KP_Down);
+addNumpad("ArrowLeft", KeyTable.XK_Left, KeyTable.XK_KP_Left);
+addNumpad("ArrowRight", KeyTable.XK_Right, KeyTable.XK_KP_Right);
+addNumpad("ArrowUp", KeyTable.XK_Up, KeyTable.XK_KP_Up);
+addNumpad("End", KeyTable.XK_End, KeyTable.XK_KP_End);
+addNumpad("Home", KeyTable.XK_Home, KeyTable.XK_KP_Home);
+addNumpad("PageDown", KeyTable.XK_Next, KeyTable.XK_KP_Next);
+addNumpad("PageUp", KeyTable.XK_Prior, KeyTable.XK_KP_Prior);
+
+// 3.5. Editing Keys
+
+addStandard("Backspace", KeyTable.XK_BackSpace);
+// Browsers send "Clear" for the numpad 5 without NumLock because
+// Windows uses VK_Clear for that key. But Unix expects KP_Begin for
+// that scenario.
+addNumpad("Clear", KeyTable.XK_Clear, KeyTable.XK_KP_Begin);
+addStandard("Copy", KeyTable.XF86XK_Copy);
+// - CrSel
+addStandard("Cut", KeyTable.XF86XK_Cut);
+addNumpad("Delete", KeyTable.XK_Delete, KeyTable.XK_KP_Delete);
+// - EraseEof
+// - ExSel
+addNumpad("Insert", KeyTable.XK_Insert, KeyTable.XK_KP_Insert);
+addStandard("Paste", KeyTable.XF86XK_Paste);
+addStandard("Redo", KeyTable.XK_Redo);
+addStandard("Undo", KeyTable.XK_Undo);
+
+// 3.6. UI Keys
+
+// - Accept
+// - Again (could just be XK_Redo)
+// - Attn
+addStandard("Cancel", KeyTable.XK_Cancel);
+addStandard("ContextMenu", KeyTable.XK_Menu);
+addStandard("Escape", KeyTable.XK_Escape);
+addStandard("Execute", KeyTable.XK_Execute);
+addStandard("Find", KeyTable.XK_Find);
+addStandard("Help", KeyTable.XK_Help);
+addStandard("Pause", KeyTable.XK_Pause);
+// - Play
+// - Props
+addStandard("Select", KeyTable.XK_Select);
+addStandard("ZoomIn", KeyTable.XF86XK_ZoomIn);
+addStandard("ZoomOut", KeyTable.XF86XK_ZoomOut);
+
+// 3.7. Device Keys
+
+addStandard("BrightnessDown", KeyTable.XF86XK_MonBrightnessDown);
+addStandard("BrightnessUp", KeyTable.XF86XK_MonBrightnessUp);
+addStandard("Eject", KeyTable.XF86XK_Eject);
+addStandard("LogOff", KeyTable.XF86XK_LogOff);
+addStandard("Power", KeyTable.XF86XK_PowerOff);
+addStandard("PowerOff", KeyTable.XF86XK_PowerDown);
+addStandard("PrintScreen", KeyTable.XK_Print);
+addStandard("Hibernate", KeyTable.XF86XK_Hibernate);
+addStandard("Standby", KeyTable.XF86XK_Standby);
+addStandard("WakeUp", KeyTable.XF86XK_WakeUp);
+
+// 3.8. IME and Composition Keys
+
+addStandard("AllCandidates", KeyTable.XK_MultipleCandidate);
+addStandard("Alphanumeric", KeyTable.XK_Eisu_toggle);
+addStandard("CodeInput", KeyTable.XK_Codeinput);
+addStandard("Compose", KeyTable.XK_Multi_key);
+addStandard("Convert", KeyTable.XK_Henkan);
+// - Dead
+// - FinalMode
+addStandard("GroupFirst", KeyTable.XK_ISO_First_Group);
+addStandard("GroupLast", KeyTable.XK_ISO_Last_Group);
+addStandard("GroupNext", KeyTable.XK_ISO_Next_Group);
+addStandard("GroupPrevious", KeyTable.XK_ISO_Prev_Group);
+// - ModeChange (XK_Mode_switch is often used for AltGr)
+// - NextCandidate
+addStandard("NonConvert", KeyTable.XK_Muhenkan);
+addStandard("PreviousCandidate", KeyTable.XK_PreviousCandidate);
+// - Process
+addStandard("SingleCandidate", KeyTable.XK_SingleCandidate);
+addStandard("HangulMode", KeyTable.XK_Hangul);
+addStandard("HanjaMode", KeyTable.XK_Hangul_Hanja);
+addStandard("JunjaMode", KeyTable.XK_Hangul_Jeonja);
+addStandard("Eisu", KeyTable.XK_Eisu_toggle);
+addStandard("Hankaku", KeyTable.XK_Hankaku);
+addStandard("Hiragana", KeyTable.XK_Hiragana);
+addStandard("HiraganaKatakana", KeyTable.XK_Hiragana_Katakana);
+addStandard("KanaMode", KeyTable.XK_Kana_Shift); // could also be _Kana_Lock
+addStandard("KanjiMode", KeyTable.XK_Kanji);
+addStandard("Katakana", KeyTable.XK_Katakana);
+addStandard("Romaji", KeyTable.XK_Romaji);
+addStandard("Zenkaku", KeyTable.XK_Zenkaku);
+addStandard("ZenkakuHankaku", KeyTable.XK_Zenkaku_Hankaku);
+
+// 3.9. General-Purpose Function Keys
+
+addStandard("F1", KeyTable.XK_F1);
+addStandard("F2", KeyTable.XK_F2);
+addStandard("F3", KeyTable.XK_F3);
+addStandard("F4", KeyTable.XK_F4);
+addStandard("F5", KeyTable.XK_F5);
+addStandard("F6", KeyTable.XK_F6);
+addStandard("F7", KeyTable.XK_F7);
+addStandard("F8", KeyTable.XK_F8);
+addStandard("F9", KeyTable.XK_F9);
+addStandard("F10", KeyTable.XK_F10);
+addStandard("F11", KeyTable.XK_F11);
+addStandard("F12", KeyTable.XK_F12);
+addStandard("F13", KeyTable.XK_F13);
+addStandard("F14", KeyTable.XK_F14);
+addStandard("F15", KeyTable.XK_F15);
+addStandard("F16", KeyTable.XK_F16);
+addStandard("F17", KeyTable.XK_F17);
+addStandard("F18", KeyTable.XK_F18);
+addStandard("F19", KeyTable.XK_F19);
+addStandard("F20", KeyTable.XK_F20);
+addStandard("F21", KeyTable.XK_F21);
+addStandard("F22", KeyTable.XK_F22);
+addStandard("F23", KeyTable.XK_F23);
+addStandard("F24", KeyTable.XK_F24);
+addStandard("F25", KeyTable.XK_F25);
+addStandard("F26", KeyTable.XK_F26);
+addStandard("F27", KeyTable.XK_F27);
+addStandard("F28", KeyTable.XK_F28);
+addStandard("F29", KeyTable.XK_F29);
+addStandard("F30", KeyTable.XK_F30);
+addStandard("F31", KeyTable.XK_F31);
+addStandard("F32", KeyTable.XK_F32);
+addStandard("F33", KeyTable.XK_F33);
+addStandard("F34", KeyTable.XK_F34);
+addStandard("F35", KeyTable.XK_F35);
+// - Soft1...
+
+// 3.10. Multimedia Keys
+
+// - ChannelDown
+// - ChannelUp
+addStandard("Close", KeyTable.XF86XK_Close);
+addStandard("MailForward", KeyTable.XF86XK_MailForward);
+addStandard("MailReply", KeyTable.XF86XK_Reply);
+addStandard("MailSend", KeyTable.XF86XK_Send);
+// - MediaClose
+addStandard("MediaFastForward", KeyTable.XF86XK_AudioForward);
+addStandard("MediaPause", KeyTable.XF86XK_AudioPause);
+addStandard("MediaPlay", KeyTable.XF86XK_AudioPlay);
+// - MediaPlayPause
+addStandard("MediaRecord", KeyTable.XF86XK_AudioRecord);
+addStandard("MediaRewind", KeyTable.XF86XK_AudioRewind);
+addStandard("MediaStop", KeyTable.XF86XK_AudioStop);
+addStandard("MediaTrackNext", KeyTable.XF86XK_AudioNext);
+addStandard("MediaTrackPrevious", KeyTable.XF86XK_AudioPrev);
+addStandard("New", KeyTable.XF86XK_New);
+addStandard("Open", KeyTable.XF86XK_Open);
+addStandard("Print", KeyTable.XK_Print);
+addStandard("Save", KeyTable.XF86XK_Save);
+addStandard("SpellCheck", KeyTable.XF86XK_Spell);
+
+// 3.11. Multimedia Numpad Keys
+
+// - Key11
+// - Key12
+
+// 3.12. Audio Keys
+
+// - AudioBalanceLeft
+// - AudioBalanceRight
+// - AudioBassBoostDown
+// - AudioBassBoostToggle
+// - AudioBassBoostUp
+// - AudioFaderFront
+// - AudioFaderRear
+// - AudioSurroundModeNext
+// - AudioTrebleDown
+// - AudioTrebleUp
+addStandard("AudioVolumeDown", KeyTable.XF86XK_AudioLowerVolume);
+addStandard("AudioVolumeUp", KeyTable.XF86XK_AudioRaiseVolume);
+addStandard("AudioVolumeMute", KeyTable.XF86XK_AudioMute);
+// - MicrophoneToggle
+// - MicrophoneVolumeDown
+// - MicrophoneVolumeUp
+addStandard("MicrophoneVolumeMute", KeyTable.XF86XK_AudioMicMute);
+
+// 3.13. Speech Keys
+
+// - SpeechCorrectionList
+// - SpeechInputToggle
+
+// 3.14. Application Keys
+
+addStandard("LaunchApplication1", KeyTable.XF86XK_MyComputer);
+addStandard("LaunchApplication2", KeyTable.XF86XK_Calculator);
+addStandard("LaunchCalendar", KeyTable.XF86XK_Calendar);
+// - LaunchContacts
+addStandard("LaunchMail", KeyTable.XF86XK_Mail);
+addStandard("LaunchMediaPlayer", KeyTable.XF86XK_AudioMedia);
+addStandard("LaunchMusicPlayer", KeyTable.XF86XK_Music);
+addStandard("LaunchPhone", KeyTable.XF86XK_Phone);
+addStandard("LaunchScreenSaver", KeyTable.XF86XK_ScreenSaver);
+addStandard("LaunchSpreadsheet", KeyTable.XF86XK_Excel);
+addStandard("LaunchWebBrowser", KeyTable.XF86XK_WWW);
+addStandard("LaunchWebCam", KeyTable.XF86XK_WebCam);
+addStandard("LaunchWordProcessor", KeyTable.XF86XK_Word);
+
+// 3.15. Browser Keys
+
+addStandard("BrowserBack", KeyTable.XF86XK_Back);
+addStandard("BrowserFavorites", KeyTable.XF86XK_Favorites);
+addStandard("BrowserForward", KeyTable.XF86XK_Forward);
+addStandard("BrowserHome", KeyTable.XF86XK_HomePage);
+addStandard("BrowserRefresh", KeyTable.XF86XK_Refresh);
+addStandard("BrowserSearch", KeyTable.XF86XK_Search);
+addStandard("BrowserStop", KeyTable.XF86XK_Stop);
+
+// 3.16. Mobile Phone Keys
+
+// - A whole bunch...
+
+// 3.17. TV Keys
+
+// - A whole bunch...
+
+// 3.18. Media Controller Keys
+
+// - A whole bunch...
+addStandard("Dimmer", KeyTable.XF86XK_BrightnessAdjust);
+addStandard("MediaAudioTrack", KeyTable.XF86XK_AudioCycleTrack);
+addStandard("RandomToggle", KeyTable.XF86XK_AudioRandomPlay);
+addStandard("SplitScreenToggle", KeyTable.XF86XK_SplitScreen);
+addStandard("Subtitle", KeyTable.XF86XK_Subtitle);
+addStandard("VideoModeNext", KeyTable.XF86XK_Next_VMode);
+
+// Extra: Numpad
+
+addNumpad("=", KeyTable.XK_equal, KeyTable.XK_KP_Equal);
+addNumpad("+", KeyTable.XK_plus, KeyTable.XK_KP_Add);
+addNumpad("-", KeyTable.XK_minus, KeyTable.XK_KP_Subtract);
+addNumpad("*", KeyTable.XK_asterisk, KeyTable.XK_KP_Multiply);
+addNumpad("/", KeyTable.XK_slash, KeyTable.XK_KP_Divide);
+addNumpad(".", KeyTable.XK_period, KeyTable.XK_KP_Decimal);
+addNumpad(",", KeyTable.XK_comma, KeyTable.XK_KP_Separator);
+addNumpad("0", KeyTable.XK_0, KeyTable.XK_KP_0);
+addNumpad("1", KeyTable.XK_1, KeyTable.XK_KP_1);
+addNumpad("2", KeyTable.XK_2, KeyTable.XK_KP_2);
+addNumpad("3", KeyTable.XK_3, KeyTable.XK_KP_3);
+addNumpad("4", KeyTable.XK_4, KeyTable.XK_KP_4);
+addNumpad("5", KeyTable.XK_5, KeyTable.XK_KP_5);
+addNumpad("6", KeyTable.XK_6, KeyTable.XK_KP_6);
+addNumpad("7", KeyTable.XK_7, KeyTable.XK_KP_7);
+addNumpad("8", KeyTable.XK_8, KeyTable.XK_KP_8);
+addNumpad("9", KeyTable.XK_9, KeyTable.XK_KP_9);
+
+export default DOMKeyTable;

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/input/fixedkeys.js

@@ -0,0 +1,129 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2018 The noVNC authors
+ * Licensed under MPL 2.0 or any later version (see LICENSE.txt)
+ */
+
+/*
+ * Fallback mapping between HTML key codes (physical keys) and
+ * HTML key values. This only works for keys that don't vary
+ * between layouts. We also omit those who manage fine by mapping the
+ * Unicode representation.
+ *
+ * See https://www.w3.org/TR/uievents-code/ for possible codes.
+ * See https://www.w3.org/TR/uievents-key/ for possible values.
+ */
+
+/* eslint-disable key-spacing */
+
+export default {
+
+// 3.1.1.1. Writing System Keys
+
+    'Backspace':        'Backspace',
+
+// 3.1.1.2. Functional Keys
+
+    'AltLeft':          'Alt',
+    'AltRight':         'Alt', // This could also be 'AltGraph'
+    'CapsLock':         'CapsLock',
+    'ContextMenu':      'ContextMenu',
+    'ControlLeft':      'Control',
+    'ControlRight':     'Control',
+    'Enter':            'Enter',
+    'MetaLeft':         'Meta',
+    'MetaRight':        'Meta',
+    'ShiftLeft':        'Shift',
+    'ShiftRight':       'Shift',
+    'Tab':              'Tab',
+    // FIXME: Japanese/Korean keys
+
+// 3.1.2. Control Pad Section
+
+    'Delete':           'Delete',
+    'End':              'End',
+    'Help':             'Help',
+    'Home':             'Home',
+    'Insert':           'Insert',
+    'PageDown':         'PageDown',
+    'PageUp':           'PageUp',
+
+// 3.1.3. Arrow Pad Section
+
+    'ArrowDown':        'ArrowDown',
+    'ArrowLeft':        'ArrowLeft',
+    'ArrowRight':       'ArrowRight',
+    'ArrowUp':          'ArrowUp',
+
+// 3.1.4. Numpad Section
+
+    'NumLock':          'NumLock',
+    'NumpadBackspace':  'Backspace',
+    'NumpadClear':      'Clear',
+
+// 3.1.5. Function Section
+
+    'Escape':           'Escape',
+    'F1':               'F1',
+    'F2':               'F2',
+    'F3':               'F3',
+    'F4':               'F4',
+    'F5':               'F5',
+    'F6':               'F6',
+    'F7':               'F7',
+    'F8':               'F8',
+    'F9':               'F9',
+    'F10':              'F10',
+    'F11':              'F11',
+    'F12':              'F12',
+    'F13':              'F13',
+    'F14':              'F14',
+    'F15':              'F15',
+    'F16':              'F16',
+    'F17':              'F17',
+    'F18':              'F18',
+    'F19':              'F19',
+    'F20':              'F20',
+    'F21':              'F21',
+    'F22':              'F22',
+    'F23':              'F23',
+    'F24':              'F24',
+    'F25':              'F25',
+    'F26':              'F26',
+    'F27':              'F27',
+    'F28':              'F28',
+    'F29':              'F29',
+    'F30':              'F30',
+    'F31':              'F31',
+    'F32':              'F32',
+    'F33':              'F33',
+    'F34':              'F34',
+    'F35':              'F35',
+    'PrintScreen':      'PrintScreen',
+    'ScrollLock':       'ScrollLock',
+    'Pause':            'Pause',
+
+// 3.1.6. Media Keys
+
+    'BrowserBack':      'BrowserBack',
+    'BrowserFavorites': 'BrowserFavorites',
+    'BrowserForward':   'BrowserForward',
+    'BrowserHome':      'BrowserHome',
+    'BrowserRefresh':   'BrowserRefresh',
+    'BrowserSearch':    'BrowserSearch',
+    'BrowserStop':      'BrowserStop',
+    'Eject':            'Eject',
+    'LaunchApp1':       'LaunchMyComputer',
+    'LaunchApp2':       'LaunchCalendar',
+    'LaunchMail':       'LaunchMail',
+    'MediaPlayPause':   'MediaPlay',
+    'MediaStop':        'MediaStop',
+    'MediaTrackNext':   'MediaTrackNext',
+    'MediaTrackPrevious': 'MediaTrackPrevious',
+    'Power':            'Power',
+    'Sleep':            'Sleep',
+    'AudioVolumeDown':  'AudioVolumeDown',
+    'AudioVolumeMute':  'AudioVolumeMute',
+    'AudioVolumeUp':    'AudioVolumeUp',
+    'WakeUp':           'WakeUp',
+};

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/input/gesturehandler.js

@@ -0,0 +1,567 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2020 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ */
+
+const GH_NOGESTURE = 0;
+const GH_ONETAP    = 1;
+const GH_TWOTAP    = 2;
+const GH_THREETAP  = 4;
+const GH_DRAG      = 8;
+const GH_LONGPRESS = 16;
+const GH_TWODRAG   = 32;
+const GH_PINCH     = 64;
+
+const GH_INITSTATE = 127;
+
+const GH_MOVE_THRESHOLD = 50;
+const GH_ANGLE_THRESHOLD = 90; // Degrees
+
+// Timeout when waiting for gestures (ms)
+const GH_MULTITOUCH_TIMEOUT = 250;
+
+// Maximum time between press and release for a tap (ms)
+const GH_TAP_TIMEOUT = 1000;
+
+// Timeout when waiting for longpress (ms)
+const GH_LONGPRESS_TIMEOUT = 1000;
+
+// Timeout when waiting to decide between PINCH and TWODRAG (ms)
+const GH_TWOTOUCH_TIMEOUT = 50;
+
+export default class GestureHandler {
+    constructor() {
+        this._target = null;
+
+        this._state = GH_INITSTATE;
+
+        this._tracked = [];
+        this._ignored = [];
+
+        this._waitingRelease = false;
+        this._releaseStart = 0.0;
+
+        this._longpressTimeoutId = null;
+        this._twoTouchTimeoutId = null;
+
+        this._boundEventHandler = this._eventHandler.bind(this);
+    }
+
+    attach(target) {
+        this.detach();
+
+        this._target = target;
+        this._target.addEventListener('touchstart',
+                                      this._boundEventHandler);
+        this._target.addEventListener('touchmove',
+                                      this._boundEventHandler);
+        this._target.addEventListener('touchend',
+                                      this._boundEventHandler);
+        this._target.addEventListener('touchcancel',
+                                      this._boundEventHandler);
+    }
+
+    detach() {
+        if (!this._target) {
+            return;
+        }
+
+        this._stopLongpressTimeout();
+        this._stopTwoTouchTimeout();
+
+        this._target.removeEventListener('touchstart',
+                                         this._boundEventHandler);
+        this._target.removeEventListener('touchmove',
+                                         this._boundEventHandler);
+        this._target.removeEventListener('touchend',
+                                         this._boundEventHandler);
+        this._target.removeEventListener('touchcancel',
+                                         this._boundEventHandler);
+        this._target = null;
+    }
+
+    _eventHandler(e) {
+        let fn;
+
+        e.stopPropagation();
+        e.preventDefault();
+
+        switch (e.type) {
+            case 'touchstart':
+                fn = this._touchStart;
+                break;
+            case 'touchmove':
+                fn = this._touchMove;
+                break;
+            case 'touchend':
+            case 'touchcancel':
+                fn = this._touchEnd;
+                break;
+        }
+
+        for (let i = 0; i < e.changedTouches.length; i++) {
+            let touch = e.changedTouches[i];
+            fn.call(this, touch.identifier, touch.clientX, touch.clientY);
+        }
+    }
+
+    _touchStart(id, x, y) {
+        // Ignore any new touches if there is already an active gesture,
+        // or we're in a cleanup state
+        if (this._hasDetectedGesture() || (this._state === GH_NOGESTURE)) {
+            this._ignored.push(id);
+            return;
+        }
+
+        // Did it take too long between touches that we should no longer
+        // consider this a single gesture?
+        if ((this._tracked.length > 0) &&
+            ((Date.now() - this._tracked[0].started) > GH_MULTITOUCH_TIMEOUT)) {
+            this._state = GH_NOGESTURE;
+            this._ignored.push(id);
+            return;
+        }
+
+        // If we're waiting for fingers to release then we should no longer
+        // recognize new touches
+        if (this._waitingRelease) {
+            this._state = GH_NOGESTURE;
+            this._ignored.push(id);
+            return;
+        }
+
+        this._tracked.push({
+            id: id,
+            started: Date.now(),
+            active: true,
+            firstX: x,
+            firstY: y,
+            lastX: x,
+            lastY: y,
+            angle: 0
+        });
+
+        switch (this._tracked.length) {
+            case 1:
+                this._startLongpressTimeout();
+                break;
+
+            case 2:
+                this._state &= ~(GH_ONETAP | GH_DRAG | GH_LONGPRESS);
+                this._stopLongpressTimeout();
+                break;
+
+            case 3:
+                this._state &= ~(GH_TWOTAP | GH_TWODRAG | GH_PINCH);
+                break;
+
+            default:
+                this._state = GH_NOGESTURE;
+        }
+    }
+
+    _touchMove(id, x, y) {
+        let touch = this._tracked.find(t => t.id === id);
+
+        // If this is an update for a touch we're not tracking, ignore it
+        if (touch === undefined) {
+            return;
+        }
+
+        // Update the touches last position with the event coordinates
+        touch.lastX = x;
+        touch.lastY = y;
+
+        let deltaX = x - touch.firstX;
+        let deltaY = y - touch.firstY;
+
+        // Update angle when the touch has moved
+        if ((touch.firstX !== touch.lastX) ||
+            (touch.firstY !== touch.lastY)) {
+            touch.angle = Math.atan2(deltaY, deltaX) * 180 / Math.PI;
+        }
+
+        if (!this._hasDetectedGesture()) {
+            // Ignore moves smaller than the minimum threshold
+            if (Math.hypot(deltaX, deltaY) < GH_MOVE_THRESHOLD) {
+                return;
+            }
+
+            // Can't be a tap or long press as we've seen movement
+            this._state &= ~(GH_ONETAP | GH_TWOTAP | GH_THREETAP | GH_LONGPRESS);
+            this._stopLongpressTimeout();
+
+            if (this._tracked.length !== 1) {
+                this._state &= ~(GH_DRAG);
+            }
+            if (this._tracked.length !== 2) {
+                this._state &= ~(GH_TWODRAG | GH_PINCH);
+            }
+
+            // We need to figure out which of our different two touch gestures
+            // this might be
+            if (this._tracked.length === 2) {
+
+                // The other touch is the one where the id doesn't match
+                let prevTouch = this._tracked.find(t => t.id !== id);
+
+                // How far the previous touch point has moved since start
+                let prevDeltaMove = Math.hypot(prevTouch.firstX - prevTouch.lastX,
+                                               prevTouch.firstY - prevTouch.lastY);
+
+                // We know that the current touch moved far enough,
+                // but unless both touches moved further than their
+                // threshold we don't want to disqualify any gestures
+                if (prevDeltaMove > GH_MOVE_THRESHOLD) {
+
+                    // The angle difference between the direction of the touch points
+                    let deltaAngle = Math.abs(touch.angle - prevTouch.angle);
+                    deltaAngle = Math.abs(((deltaAngle + 180) % 360) - 180);
+
+                    // PINCH or TWODRAG can be eliminated depending on the angle
+                    if (deltaAngle > GH_ANGLE_THRESHOLD) {
+                        this._state &= ~GH_TWODRAG;
+                    } else {
+                        this._state &= ~GH_PINCH;
+                    }
+
+                    if (this._isTwoTouchTimeoutRunning()) {
+                        this._stopTwoTouchTimeout();
+                    }
+                } else if (!this._isTwoTouchTimeoutRunning()) {
+                    // We can't determine the gesture right now, let's
+                    // wait and see if more events are on their way
+                    this._startTwoTouchTimeout();
+                }
+            }
+
+            if (!this._hasDetectedGesture()) {
+                return;
+            }
+
+            this._pushEvent('gesturestart');
+        }
+
+        this._pushEvent('gesturemove');
+    }
+
+    _touchEnd(id, x, y) {
+        // Check if this is an ignored touch
+        if (this._ignored.indexOf(id) !== -1) {
+            // Remove this touch from ignored
+            this._ignored.splice(this._ignored.indexOf(id), 1);
+
+            // And reset the state if there are no more touches
+            if ((this._ignored.length === 0) &&
+                (this._tracked.length === 0)) {
+                this._state = GH_INITSTATE;
+                this._waitingRelease = false;
+            }
+            return;
+        }
+
+        // We got a touchend before the timer triggered,
+        // this cannot result in a gesture anymore.
+        if (!this._hasDetectedGesture() &&
+            this._isTwoTouchTimeoutRunning()) {
+            this._stopTwoTouchTimeout();
+            this._state = GH_NOGESTURE;
+        }
+
+        // Some gestures don't trigger until a touch is released
+        if (!this._hasDetectedGesture()) {
+            // Can't be a gesture that relies on movement
+            this._state &= ~(GH_DRAG | GH_TWODRAG | GH_PINCH);
+            // Or something that relies on more time
+            this._state &= ~GH_LONGPRESS;
+            this._stopLongpressTimeout();
+
+            if (!this._waitingRelease) {
+                this._releaseStart = Date.now();
+                this._waitingRelease = true;
+
+                // Can't be a tap that requires more touches than we current have
+                switch (this._tracked.length) {
+                    case 1:
+                        this._state &= ~(GH_TWOTAP | GH_THREETAP);
+                        break;
+
+                    case 2:
+                        this._state &= ~(GH_ONETAP | GH_THREETAP);
+                        break;
+                }
+            }
+        }
+
+        // Waiting for all touches to release? (i.e. some tap)
+        if (this._waitingRelease) {
+            // Were all touches released at roughly the same time?
+            if ((Date.now() - this._releaseStart) > GH_MULTITOUCH_TIMEOUT) {
+                this._state = GH_NOGESTURE;
+            }
+
+            // Did too long time pass between press and release?
+            if (this._tracked.some(t => (Date.now() - t.started) > GH_TAP_TIMEOUT)) {
+                this._state = GH_NOGESTURE;
+            }
+
+            let touch = this._tracked.find(t => t.id === id);
+            touch.active = false;
+
+            // Are we still waiting for more releases?
+            if (this._hasDetectedGesture()) {
+                this._pushEvent('gesturestart');
+            } else {
+                // Have we reached a dead end?
+                if (this._state !== GH_NOGESTURE) {
+                    return;
+                }
+            }
+        }
+
+        if (this._hasDetectedGesture()) {
+            this._pushEvent('gestureend');
+        }
+
+        // Ignore any remaining touches until they are ended
+        for (let i = 0; i < this._tracked.length; i++) {
+            if (this._tracked[i].active) {
+                this._ignored.push(this._tracked[i].id);
+            }
+        }
+        this._tracked = [];
+
+        this._state = GH_NOGESTURE;
+
+        // Remove this touch from ignored if it's in there
+        if (this._ignored.indexOf(id) !== -1) {
+            this._ignored.splice(this._ignored.indexOf(id), 1);
+        }
+
+        // We reset the state if ignored is empty
+        if ((this._ignored.length === 0)) {
+            this._state = GH_INITSTATE;
+            this._waitingRelease = false;
+        }
+    }
+
+    _hasDetectedGesture() {
+        if (this._state === GH_NOGESTURE) {
+            return false;
+        }
+        // Check to see if the bitmask value is a power of 2
+        // (i.e. only one bit set). If it is, we have a state.
+        if (this._state & (this._state - 1)) {
+            return false;
+        }
+
+        // For taps we also need to have all touches released
+        // before we've fully detected the gesture
+        if (this._state & (GH_ONETAP | GH_TWOTAP | GH_THREETAP)) {
+            if (this._tracked.some(t => t.active)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    _startLongpressTimeout() {
+        this._stopLongpressTimeout();
+        this._longpressTimeoutId = setTimeout(() => this._longpressTimeout(),
+                                              GH_LONGPRESS_TIMEOUT);
+    }
+
+    _stopLongpressTimeout() {
+        clearTimeout(this._longpressTimeoutId);
+        this._longpressTimeoutId = null;
+    }
+
+    _longpressTimeout() {
+        if (this._hasDetectedGesture()) {
+            throw new Error("A longpress gesture failed, conflict with a different gesture");
+        }
+
+        this._state = GH_LONGPRESS;
+        this._pushEvent('gesturestart');
+    }
+
+    _startTwoTouchTimeout() {
+        this._stopTwoTouchTimeout();
+        this._twoTouchTimeoutId = setTimeout(() => this._twoTouchTimeout(),
+                                             GH_TWOTOUCH_TIMEOUT);
+    }
+
+    _stopTwoTouchTimeout() {
+        clearTimeout(this._twoTouchTimeoutId);
+        this._twoTouchTimeoutId = null;
+    }
+
+    _isTwoTouchTimeoutRunning() {
+        return this._twoTouchTimeoutId !== null;
+    }
+
+    _twoTouchTimeout() {
+        if (this._tracked.length === 0) {
+            throw new Error("A pinch or two drag gesture failed, no tracked touches");
+        }
+
+        // How far each touch point has moved since start
+        let avgM = this._getAverageMovement();
+        let avgMoveH = Math.abs(avgM.x);
+        let avgMoveV = Math.abs(avgM.y);
+
+        // The difference in the distance between where
+        // the touch points started and where they are now
+        let avgD = this._getAverageDistance();
+        let deltaTouchDistance = Math.abs(Math.hypot(avgD.first.x, avgD.first.y) -
+                                          Math.hypot(avgD.last.x, avgD.last.y));
+
+        if ((avgMoveV < deltaTouchDistance) &&
+            (avgMoveH < deltaTouchDistance)) {
+            this._state = GH_PINCH;
+        } else {
+            this._state = GH_TWODRAG;
+        }
+
+        this._pushEvent('gesturestart');
+        this._pushEvent('gesturemove');
+    }
+
+    _pushEvent(type) {
+        let detail = { type: this._stateToGesture(this._state) };
+
+        // For most gesture events the current (average) position is the
+        // most useful
+        let avg = this._getPosition();
+        let pos = avg.last;
+
+        // However we have a slight distance to detect gestures, so for the
+        // first gesture event we want to use the first positions we saw
+        if (type === 'gesturestart') {
+            pos = avg.first;
+        }
+
+        // For these gestures, we always want the event coordinates
+        // to be where the gesture began, not the current touch location.
+        switch (this._state) {
+            case GH_TWODRAG:
+            case GH_PINCH:
+                pos = avg.first;
+                break;
+        }
+
+        detail['clientX'] = pos.x;
+        detail['clientY'] = pos.y;
+
+        // FIXME: other coordinates?
+
+        // Some gestures also have a magnitude
+        if (this._state === GH_PINCH) {
+            let distance = this._getAverageDistance();
+            if (type === 'gesturestart') {
+                detail['magnitudeX'] = distance.first.x;
+                detail['magnitudeY'] = distance.first.y;
+            } else {
+                detail['magnitudeX'] = distance.last.x;
+                detail['magnitudeY'] = distance.last.y;
+            }
+        } else if (this._state === GH_TWODRAG) {
+            if (type === 'gesturestart') {
+                detail['magnitudeX'] = 0.0;
+                detail['magnitudeY'] = 0.0;
+            } else {
+                let movement = this._getAverageMovement();
+                detail['magnitudeX'] = movement.x;
+                detail['magnitudeY'] = movement.y;
+            }
+        }
+
+        let gev = new CustomEvent(type, { detail: detail });
+        this._target.dispatchEvent(gev);
+    }
+
+    _stateToGesture(state) {
+        switch (state) {
+            case GH_ONETAP:
+                return 'onetap';
+            case GH_TWOTAP:
+                return 'twotap';
+            case GH_THREETAP:
+                return 'threetap';
+            case GH_DRAG:
+                return 'drag';
+            case GH_LONGPRESS:
+                return 'longpress';
+            case GH_TWODRAG:
+                return 'twodrag';
+            case GH_PINCH:
+                return 'pinch';
+        }
+
+        throw new Error("Unknown gesture state: " + state);
+    }
+
+    _getPosition() {
+        if (this._tracked.length === 0) {
+            throw new Error("Failed to get gesture position, no tracked touches");
+        }
+
+        let size = this._tracked.length;
+        let fx = 0, fy = 0, lx = 0, ly = 0;
+
+        for (let i = 0; i < this._tracked.length; i++) {
+            fx += this._tracked[i].firstX;
+            fy += this._tracked[i].firstY;
+            lx += this._tracked[i].lastX;
+            ly += this._tracked[i].lastY;
+        }
+
+        return { first: { x: fx / size,
+                          y: fy / size },
+                 last: { x: lx / size,
+                         y: ly / size } };
+    }
+
+    _getAverageMovement() {
+        if (this._tracked.length === 0) {
+            throw new Error("Failed to get gesture movement, no tracked touches");
+        }
+
+        let totalH, totalV;
+        totalH = totalV = 0;
+        let size = this._tracked.length;
+
+        for (let i = 0; i < this._tracked.length; i++) {
+            totalH += this._tracked[i].lastX - this._tracked[i].firstX;
+            totalV += this._tracked[i].lastY - this._tracked[i].firstY;
+        }
+
+        return { x: totalH / size,
+                 y: totalV / size };
+    }
+
+    _getAverageDistance() {
+        if (this._tracked.length === 0) {
+            throw new Error("Failed to get gesture distance, no tracked touches");
+        }
+
+        // Distance between the first and last tracked touches
+
+        let first = this._tracked[0];
+        let last = this._tracked[this._tracked.length - 1];
+
+        let fdx = Math.abs(last.firstX - first.firstX);
+        let fdy = Math.abs(last.firstY - first.firstY);
+
+        let ldx = Math.abs(last.lastX - first.lastX);
+        let ldy = Math.abs(last.lastY - first.lastY);
+
+        return { first: { x: fdx, y: fdy },
+                 last: { x: ldx, y: ldy } };
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/input/keyboard.js

@@ -0,0 +1,294 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 or any later version (see LICENSE.txt)
+ */
+
+import * as Log from '../util/logging.js';
+import { stopEvent } from '../util/events.js';
+import * as KeyboardUtil from "./util.js";
+import KeyTable from "./keysym.js";
+import * as browser from "../util/browser.js";
+
+//
+// Keyboard event handler
+//
+
+export default class Keyboard {
+    constructor(target) {
+        this._target = target || null;
+
+        this._keyDownList = {};         // List of depressed keys
+                                        // (even if they are happy)
+        this._altGrArmed = false;       // Windows AltGr detection
+
+        // keep these here so we can refer to them later
+        this._eventHandlers = {
+            'keyup': this._handleKeyUp.bind(this),
+            'keydown': this._handleKeyDown.bind(this),
+            'blur': this._allKeysUp.bind(this),
+        };
+
+        // ===== EVENT HANDLERS =====
+
+        this.onkeyevent = () => {}; // Handler for key press/release
+    }
+
+    // ===== PRIVATE METHODS =====
+
+    _sendKeyEvent(keysym, code, down, numlock = null, capslock = null) {
+        if (down) {
+            this._keyDownList[code] = keysym;
+        } else {
+            // Do we really think this key is down?
+            if (!(code in this._keyDownList)) {
+                return;
+            }
+            delete this._keyDownList[code];
+        }
+
+        Log.Debug("onkeyevent " + (down ? "down" : "up") +
+                  ", keysym: " + keysym, ", code: " + code +
+                  ", numlock: " + numlock + ", capslock: " + capslock);
+        this.onkeyevent(keysym, code, down, numlock, capslock);
+    }
+
+    _getKeyCode(e) {
+        const code = KeyboardUtil.getKeycode(e);
+        if (code !== 'Unidentified') {
+            return code;
+        }
+
+        // Unstable, but we don't have anything else to go on
+        if (e.keyCode) {
+            // 229 is used for composition events
+            if (e.keyCode !== 229) {
+                return 'Platform' + e.keyCode;
+            }
+        }
+
+        // A precursor to the final DOM3 standard. Unfortunately it
+        // is not layout independent, so it is as bad as using keyCode
+        if (e.keyIdentifier) {
+            // Non-character key?
+            if (e.keyIdentifier.substr(0, 2) !== 'U+') {
+                return e.keyIdentifier;
+            }
+
+            const codepoint = parseInt(e.keyIdentifier.substr(2), 16);
+            const char = String.fromCharCode(codepoint).toUpperCase();
+
+            return 'Platform' + char.charCodeAt();
+        }
+
+        return 'Unidentified';
+    }
+
+    _handleKeyDown(e) {
+        const code = this._getKeyCode(e);
+        let keysym = KeyboardUtil.getKeysym(e);
+        let numlock = e.getModifierState('NumLock');
+        let capslock = e.getModifierState('CapsLock');
+
+        // getModifierState for NumLock is not supported on mac and ios and always returns false.
+        // Set to null to indicate unknown/unsupported instead.
+        if (browser.isMac() || browser.isIOS()) {
+            numlock = null;
+        }
+
+        // Windows doesn't have a proper AltGr, but handles it using
+        // fake Ctrl+Alt. However the remote end might not be Windows,
+        // so we need to merge those in to a single AltGr event. We
+        // detect this case by seeing the two key events directly after
+        // each other with a very short time between them (<50ms).
+        if (this._altGrArmed) {
+            this._altGrArmed = false;
+            clearTimeout(this._altGrTimeout);
+
+            if ((code === "AltRight") &&
+                ((e.timeStamp - this._altGrCtrlTime) < 50)) {
+                // FIXME: We fail to detect this if either Ctrl key is
+                //        first manually pressed as Windows then no
+                //        longer sends the fake Ctrl down event. It
+                //        does however happily send real Ctrl events
+                //        even when AltGr is already down. Some
+                //        browsers detect this for us though and set the
+                //        key to "AltGraph".
+                keysym = KeyTable.XK_ISO_Level3_Shift;
+            } else {
+                this._sendKeyEvent(KeyTable.XK_Control_L, "ControlLeft", true, numlock, capslock);
+            }
+        }
+
+        // We cannot handle keys we cannot track, but we also need
+        // to deal with virtual keyboards which omit key info
+        if (code === 'Unidentified') {
+            if (keysym) {
+                // If it's a virtual keyboard then it should be
+                // sufficient to just send press and release right
+                // after each other
+                this._sendKeyEvent(keysym, code, true, numlock, capslock);
+                this._sendKeyEvent(keysym, code, false, numlock, capslock);
+            }
+
+            stopEvent(e);
+            return;
+        }
+
+        // Alt behaves more like AltGraph on macOS, so shuffle the
+        // keys around a bit to make things more sane for the remote
+        // server. This method is used by RealVNC and TigerVNC (and
+        // possibly others).
+        if (browser.isMac() || browser.isIOS()) {
+            switch (keysym) {
+                case KeyTable.XK_Super_L:
+                    keysym = KeyTable.XK_Alt_L;
+                    break;
+                case KeyTable.XK_Super_R:
+                    keysym = KeyTable.XK_Super_L;
+                    break;
+                case KeyTable.XK_Alt_L:
+                    keysym = KeyTable.XK_Mode_switch;
+                    break;
+                case KeyTable.XK_Alt_R:
+                    keysym = KeyTable.XK_ISO_Level3_Shift;
+                    break;
+            }
+        }
+
+        // Is this key already pressed? If so, then we must use the
+        // same keysym or we'll confuse the server
+        if (code in this._keyDownList) {
+            keysym = this._keyDownList[code];
+        }
+
+        // macOS doesn't send proper key releases if a key is pressed
+        // while meta is held down
+        if ((browser.isMac() || browser.isIOS()) &&
+            (e.metaKey && code !== 'MetaLeft' && code !== 'MetaRight')) {
+            this._sendKeyEvent(keysym, code, true, numlock, capslock);
+            this._sendKeyEvent(keysym, code, false, numlock, capslock);
+            stopEvent(e);
+            return;
+        }
+
+        // macOS doesn't send proper key events for modifiers, only
+        // state change events. That gets extra confusing for CapsLock
+        // which toggles on each press, but not on release. So pretend
+        // it was a quick press and release of the button.
+        if ((browser.isMac() || browser.isIOS()) && (code === 'CapsLock')) {
+            this._sendKeyEvent(KeyTable.XK_Caps_Lock, 'CapsLock', true, numlock, capslock);
+            this._sendKeyEvent(KeyTable.XK_Caps_Lock, 'CapsLock', false, numlock, capslock);
+            stopEvent(e);
+            return;
+        }
+
+        // Windows doesn't send proper key releases for a bunch of
+        // Japanese IM keys so we have to fake the release right away
+        const jpBadKeys = [ KeyTable.XK_Zenkaku_Hankaku,
+                            KeyTable.XK_Eisu_toggle,
+                            KeyTable.XK_Katakana,
+                            KeyTable.XK_Hiragana,
+                            KeyTable.XK_Romaji ];
+        if (browser.isWindows() && jpBadKeys.includes(keysym)) {
+            this._sendKeyEvent(keysym, code, true, numlock, capslock);
+            this._sendKeyEvent(keysym, code, false, numlock, capslock);
+            stopEvent(e);
+            return;
+        }
+
+        stopEvent(e);
+
+        // Possible start of AltGr sequence? (see above)
+        if ((code === "ControlLeft") && browser.isWindows() &&
+            !("ControlLeft" in this._keyDownList)) {
+            this._altGrArmed = true;
+            this._altGrTimeout = setTimeout(this._interruptAltGrSequence.bind(this), 100);
+            this._altGrCtrlTime = e.timeStamp;
+            return;
+        }
+
+        this._sendKeyEvent(keysym, code, true, numlock, capslock);
+    }
+
+    _handleKeyUp(e) {
+        stopEvent(e);
+
+        const code = this._getKeyCode(e);
+
+        // We can't get a release in the middle of an AltGr sequence, so
+        // abort that detection
+        this._interruptAltGrSequence();
+
+        // See comment in _handleKeyDown()
+        if ((browser.isMac() || browser.isIOS()) && (code === 'CapsLock')) {
+            this._sendKeyEvent(KeyTable.XK_Caps_Lock, 'CapsLock', true);
+            this._sendKeyEvent(KeyTable.XK_Caps_Lock, 'CapsLock', false);
+            return;
+        }
+
+        this._sendKeyEvent(this._keyDownList[code], code, false);
+
+        // Windows has a rather nasty bug where it won't send key
+        // release events for a Shift button if the other Shift is still
+        // pressed
+        if (browser.isWindows() && ((code === 'ShiftLeft') ||
+                                    (code === 'ShiftRight'))) {
+            if ('ShiftRight' in this._keyDownList) {
+                this._sendKeyEvent(this._keyDownList['ShiftRight'],
+                                   'ShiftRight', false);
+            }
+            if ('ShiftLeft' in this._keyDownList) {
+                this._sendKeyEvent(this._keyDownList['ShiftLeft'],
+                                   'ShiftLeft', false);
+            }
+        }
+    }
+
+    _interruptAltGrSequence() {
+        if (this._altGrArmed) {
+            this._altGrArmed = false;
+            clearTimeout(this._altGrTimeout);
+            this._sendKeyEvent(KeyTable.XK_Control_L, "ControlLeft", true);
+        }
+    }
+
+    _allKeysUp() {
+        Log.Debug(">> Keyboard.allKeysUp");
+
+        // Prevent control key being processed after losing focus.
+        this._interruptAltGrSequence();
+
+        for (let code in this._keyDownList) {
+            this._sendKeyEvent(this._keyDownList[code], code, false);
+        }
+        Log.Debug("<< Keyboard.allKeysUp");
+    }
+
+    // ===== PUBLIC METHODS =====
+
+    grab() {
+        //Log.Debug(">> Keyboard.grab");
+
+        this._target.addEventListener('keydown', this._eventHandlers.keydown);
+        this._target.addEventListener('keyup', this._eventHandlers.keyup);
+
+        // Release (key up) if window loses focus
+        window.addEventListener('blur', this._eventHandlers.blur);
+
+        //Log.Debug("<< Keyboard.grab");
+    }
+
+    ungrab() {
+        //Log.Debug(">> Keyboard.ungrab");
+
+        this._target.removeEventListener('keydown', this._eventHandlers.keydown);
+        this._target.removeEventListener('keyup', this._eventHandlers.keyup);
+        window.removeEventListener('blur', this._eventHandlers.blur);
+
+        // Release (key up) all keys that are in a down state
+        this._allKeysUp();
+
+        //Log.Debug(">> Keyboard.ungrab");
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/input/keysym.js

@@ -0,0 +1,616 @@
+/* eslint-disable key-spacing */
+
+export default {
+    XK_VoidSymbol:                  0xffffff, /* Void symbol */
+
+    XK_BackSpace:                   0xff08, /* Back space, back char */
+    XK_Tab:                         0xff09,
+    XK_Linefeed:                    0xff0a, /* Linefeed, LF */
+    XK_Clear:                       0xff0b,
+    XK_Return:                      0xff0d, /* Return, enter */
+    XK_Pause:                       0xff13, /* Pause, hold */
+    XK_Scroll_Lock:                 0xff14,
+    XK_Sys_Req:                     0xff15,
+    XK_Escape:                      0xff1b,
+    XK_Delete:                      0xffff, /* Delete, rubout */
+
+    /* International & multi-key character composition */
+
+    XK_Multi_key:                   0xff20, /* Multi-key character compose */
+    XK_Codeinput:                   0xff37,
+    XK_SingleCandidate:             0xff3c,
+    XK_MultipleCandidate:           0xff3d,
+    XK_PreviousCandidate:           0xff3e,
+
+    /* Japanese keyboard support */
+
+    XK_Kanji:                       0xff21, /* Kanji, Kanji convert */
+    XK_Muhenkan:                    0xff22, /* Cancel Conversion */
+    XK_Henkan_Mode:                 0xff23, /* Start/Stop Conversion */
+    XK_Henkan:                      0xff23, /* Alias for Henkan_Mode */
+    XK_Romaji:                      0xff24, /* to Romaji */
+    XK_Hiragana:                    0xff25, /* to Hiragana */
+    XK_Katakana:                    0xff26, /* to Katakana */
+    XK_Hiragana_Katakana:           0xff27, /* Hiragana/Katakana toggle */
+    XK_Zenkaku:                     0xff28, /* to Zenkaku */
+    XK_Hankaku:                     0xff29, /* to Hankaku */
+    XK_Zenkaku_Hankaku:             0xff2a, /* Zenkaku/Hankaku toggle */
+    XK_Touroku:                     0xff2b, /* Add to Dictionary */
+    XK_Massyo:                      0xff2c, /* Delete from Dictionary */
+    XK_Kana_Lock:                   0xff2d, /* Kana Lock */
+    XK_Kana_Shift:                  0xff2e, /* Kana Shift */
+    XK_Eisu_Shift:                  0xff2f, /* Alphanumeric Shift */
+    XK_Eisu_toggle:                 0xff30, /* Alphanumeric toggle */
+    XK_Kanji_Bangou:                0xff37, /* Codeinput */
+    XK_Zen_Koho:                    0xff3d, /* Multiple/All Candidate(s) */
+    XK_Mae_Koho:                    0xff3e, /* Previous Candidate */
+
+    /* Cursor control & motion */
+
+    XK_Home:                        0xff50,
+    XK_Left:                        0xff51, /* Move left, left arrow */
+    XK_Up:                          0xff52, /* Move up, up arrow */
+    XK_Right:                       0xff53, /* Move right, right arrow */
+    XK_Down:                        0xff54, /* Move down, down arrow */
+    XK_Prior:                       0xff55, /* Prior, previous */
+    XK_Page_Up:                     0xff55,
+    XK_Next:                        0xff56, /* Next */
+    XK_Page_Down:                   0xff56,
+    XK_End:                         0xff57, /* EOL */
+    XK_Begin:                       0xff58, /* BOL */
+
+
+    /* Misc functions */
+
+    XK_Select:                      0xff60, /* Select, mark */
+    XK_Print:                       0xff61,
+    XK_Execute:                     0xff62, /* Execute, run, do */
+    XK_Insert:                      0xff63, /* Insert, insert here */
+    XK_Undo:                        0xff65,
+    XK_Redo:                        0xff66, /* Redo, again */
+    XK_Menu:                        0xff67,
+    XK_Find:                        0xff68, /* Find, search */
+    XK_Cancel:                      0xff69, /* Cancel, stop, abort, exit */
+    XK_Help:                        0xff6a, /* Help */
+    XK_Break:                       0xff6b,
+    XK_Mode_switch:                 0xff7e, /* Character set switch */
+    XK_script_switch:               0xff7e, /* Alias for mode_switch */
+    XK_Num_Lock:                    0xff7f,
+
+    /* Keypad functions, keypad numbers cleverly chosen to map to ASCII */
+
+    XK_KP_Space:                    0xff80, /* Space */
+    XK_KP_Tab:                      0xff89,
+    XK_KP_Enter:                    0xff8d, /* Enter */
+    XK_KP_F1:                       0xff91, /* PF1, KP_A, ... */
+    XK_KP_F2:                       0xff92,
+    XK_KP_F3:                       0xff93,
+    XK_KP_F4:                       0xff94,
+    XK_KP_Home:                     0xff95,
+    XK_KP_Left:                     0xff96,
+    XK_KP_Up:                       0xff97,
+    XK_KP_Right:                    0xff98,
+    XK_KP_Down:                     0xff99,
+    XK_KP_Prior:                    0xff9a,
+    XK_KP_Page_Up:                  0xff9a,
+    XK_KP_Next:                     0xff9b,
+    XK_KP_Page_Down:                0xff9b,
+    XK_KP_End:                      0xff9c,
+    XK_KP_Begin:                    0xff9d,
+    XK_KP_Insert:                   0xff9e,
+    XK_KP_Delete:                   0xff9f,
+    XK_KP_Equal:                    0xffbd, /* Equals */
+    XK_KP_Multiply:                 0xffaa,
+    XK_KP_Add:                      0xffab,
+    XK_KP_Separator:                0xffac, /* Separator, often comma */
+    XK_KP_Subtract:                 0xffad,
+    XK_KP_Decimal:                  0xffae,
+    XK_KP_Divide:                   0xffaf,
+
+    XK_KP_0:                        0xffb0,
+    XK_KP_1:                        0xffb1,
+    XK_KP_2:                        0xffb2,
+    XK_KP_3:                        0xffb3,
+    XK_KP_4:                        0xffb4,
+    XK_KP_5:                        0xffb5,
+    XK_KP_6:                        0xffb6,
+    XK_KP_7:                        0xffb7,
+    XK_KP_8:                        0xffb8,
+    XK_KP_9:                        0xffb9,
+
+    /*
+     * Auxiliary functions; note the duplicate definitions for left and right
+     * function keys;  Sun keyboards and a few other manufacturers have such
+     * function key groups on the left and/or right sides of the keyboard.
+     * We've not found a keyboard with more than 35 function keys total.
+     */
+
+    XK_F1:                          0xffbe,
+    XK_F2:                          0xffbf,
+    XK_F3:                          0xffc0,
+    XK_F4:                          0xffc1,
+    XK_F5:                          0xffc2,
+    XK_F6:                          0xffc3,
+    XK_F7:                          0xffc4,
+    XK_F8:                          0xffc5,
+    XK_F9:                          0xffc6,
+    XK_F10:                         0xffc7,
+    XK_F11:                         0xffc8,
+    XK_L1:                          0xffc8,
+    XK_F12:                         0xffc9,
+    XK_L2:                          0xffc9,
+    XK_F13:                         0xffca,
+    XK_L3:                          0xffca,
+    XK_F14:                         0xffcb,
+    XK_L4:                          0xffcb,
+    XK_F15:                         0xffcc,
+    XK_L5:                          0xffcc,
+    XK_F16:                         0xffcd,
+    XK_L6:                          0xffcd,
+    XK_F17:                         0xffce,
+    XK_L7:                          0xffce,
+    XK_F18:                         0xffcf,
+    XK_L8:                          0xffcf,
+    XK_F19:                         0xffd0,
+    XK_L9:                          0xffd0,
+    XK_F20:                         0xffd1,
+    XK_L10:                         0xffd1,
+    XK_F21:                         0xffd2,
+    XK_R1:                          0xffd2,
+    XK_F22:                         0xffd3,
+    XK_R2:                          0xffd3,
+    XK_F23:                         0xffd4,
+    XK_R3:                          0xffd4,
+    XK_F24:                         0xffd5,
+    XK_R4:                          0xffd5,
+    XK_F25:                         0xffd6,
+    XK_R5:                          0xffd6,
+    XK_F26:                         0xffd7,
+    XK_R6:                          0xffd7,
+    XK_F27:                         0xffd8,
+    XK_R7:                          0xffd8,
+    XK_F28:                         0xffd9,
+    XK_R8:                          0xffd9,
+    XK_F29:                         0xffda,
+    XK_R9:                          0xffda,
+    XK_F30:                         0xffdb,
+    XK_R10:                         0xffdb,
+    XK_F31:                         0xffdc,
+    XK_R11:                         0xffdc,
+    XK_F32:                         0xffdd,
+    XK_R12:                         0xffdd,
+    XK_F33:                         0xffde,
+    XK_R13:                         0xffde,
+    XK_F34:                         0xffdf,
+    XK_R14:                         0xffdf,
+    XK_F35:                         0xffe0,
+    XK_R15:                         0xffe0,
+
+    /* Modifiers */
+
+    XK_Shift_L:                     0xffe1, /* Left shift */
+    XK_Shift_R:                     0xffe2, /* Right shift */
+    XK_Control_L:                   0xffe3, /* Left control */
+    XK_Control_R:                   0xffe4, /* Right control */
+    XK_Caps_Lock:                   0xffe5, /* Caps lock */
+    XK_Shift_Lock:                  0xffe6, /* Shift lock */
+
+    XK_Meta_L:                      0xffe7, /* Left meta */
+    XK_Meta_R:                      0xffe8, /* Right meta */
+    XK_Alt_L:                       0xffe9, /* Left alt */
+    XK_Alt_R:                       0xffea, /* Right alt */
+    XK_Super_L:                     0xffeb, /* Left super */
+    XK_Super_R:                     0xffec, /* Right super */
+    XK_Hyper_L:                     0xffed, /* Left hyper */
+    XK_Hyper_R:                     0xffee, /* Right hyper */
+
+    /*
+     * Keyboard (XKB) Extension function and modifier keys
+     * (from Appendix C of "The X Keyboard Extension: Protocol Specification")
+     * Byte 3 = 0xfe
+     */
+
+    XK_ISO_Level3_Shift:            0xfe03, /* AltGr */
+    XK_ISO_Next_Group:              0xfe08,
+    XK_ISO_Prev_Group:              0xfe0a,
+    XK_ISO_First_Group:             0xfe0c,
+    XK_ISO_Last_Group:              0xfe0e,
+
+    /*
+     * Latin 1
+     * (ISO/IEC 8859-1: Unicode U+0020..U+00FF)
+     * Byte 3: 0
+     */
+
+    XK_space:                       0x0020, /* U+0020 SPACE */
+    XK_exclam:                      0x0021, /* U+0021 EXCLAMATION MARK */
+    XK_quotedbl:                    0x0022, /* U+0022 QUOTATION MARK */
+    XK_numbersign:                  0x0023, /* U+0023 NUMBER SIGN */
+    XK_dollar:                      0x0024, /* U+0024 DOLLAR SIGN */
+    XK_percent:                     0x0025, /* U+0025 PERCENT SIGN */
+    XK_ampersand:                   0x0026, /* U+0026 AMPERSAND */
+    XK_apostrophe:                  0x0027, /* U+0027 APOSTROPHE */
+    XK_quoteright:                  0x0027, /* deprecated */
+    XK_parenleft:                   0x0028, /* U+0028 LEFT PARENTHESIS */
+    XK_parenright:                  0x0029, /* U+0029 RIGHT PARENTHESIS */
+    XK_asterisk:                    0x002a, /* U+002A ASTERISK */
+    XK_plus:                        0x002b, /* U+002B PLUS SIGN */
+    XK_comma:                       0x002c, /* U+002C COMMA */
+    XK_minus:                       0x002d, /* U+002D HYPHEN-MINUS */
+    XK_period:                      0x002e, /* U+002E FULL STOP */
+    XK_slash:                       0x002f, /* U+002F SOLIDUS */
+    XK_0:                           0x0030, /* U+0030 DIGIT ZERO */
+    XK_1:                           0x0031, /* U+0031 DIGIT ONE */
+    XK_2:                           0x0032, /* U+0032 DIGIT TWO */
+    XK_3:                           0x0033, /* U+0033 DIGIT THREE */
+    XK_4:                           0x0034, /* U+0034 DIGIT FOUR */
+    XK_5:                           0x0035, /* U+0035 DIGIT FIVE */
+    XK_6:                           0x0036, /* U+0036 DIGIT SIX */
+    XK_7:                           0x0037, /* U+0037 DIGIT SEVEN */
+    XK_8:                           0x0038, /* U+0038 DIGIT EIGHT */
+    XK_9:                           0x0039, /* U+0039 DIGIT NINE */
+    XK_colon:                       0x003a, /* U+003A COLON */
+    XK_semicolon:                   0x003b, /* U+003B SEMICOLON */
+    XK_less:                        0x003c, /* U+003C LESS-THAN SIGN */
+    XK_equal:                       0x003d, /* U+003D EQUALS SIGN */
+    XK_greater:                     0x003e, /* U+003E GREATER-THAN SIGN */
+    XK_question:                    0x003f, /* U+003F QUESTION MARK */
+    XK_at:                          0x0040, /* U+0040 COMMERCIAL AT */
+    XK_A:                           0x0041, /* U+0041 LATIN CAPITAL LETTER A */
+    XK_B:                           0x0042, /* U+0042 LATIN CAPITAL LETTER B */
+    XK_C:                           0x0043, /* U+0043 LATIN CAPITAL LETTER C */
+    XK_D:                           0x0044, /* U+0044 LATIN CAPITAL LETTER D */
+    XK_E:                           0x0045, /* U+0045 LATIN CAPITAL LETTER E */
+    XK_F:                           0x0046, /* U+0046 LATIN CAPITAL LETTER F */
+    XK_G:                           0x0047, /* U+0047 LATIN CAPITAL LETTER G */
+    XK_H:                           0x0048, /* U+0048 LATIN CAPITAL LETTER H */
+    XK_I:                           0x0049, /* U+0049 LATIN CAPITAL LETTER I */
+    XK_J:                           0x004a, /* U+004A LATIN CAPITAL LETTER J */
+    XK_K:                           0x004b, /* U+004B LATIN CAPITAL LETTER K */
+    XK_L:                           0x004c, /* U+004C LATIN CAPITAL LETTER L */
+    XK_M:                           0x004d, /* U+004D LATIN CAPITAL LETTER M */
+    XK_N:                           0x004e, /* U+004E LATIN CAPITAL LETTER N */
+    XK_O:                           0x004f, /* U+004F LATIN CAPITAL LETTER O */
+    XK_P:                           0x0050, /* U+0050 LATIN CAPITAL LETTER P */
+    XK_Q:                           0x0051, /* U+0051 LATIN CAPITAL LETTER Q */
+    XK_R:                           0x0052, /* U+0052 LATIN CAPITAL LETTER R */
+    XK_S:                           0x0053, /* U+0053 LATIN CAPITAL LETTER S */
+    XK_T:                           0x0054, /* U+0054 LATIN CAPITAL LETTER T */
+    XK_U:                           0x0055, /* U+0055 LATIN CAPITAL LETTER U */
+    XK_V:                           0x0056, /* U+0056 LATIN CAPITAL LETTER V */
+    XK_W:                           0x0057, /* U+0057 LATIN CAPITAL LETTER W */
+    XK_X:                           0x0058, /* U+0058 LATIN CAPITAL LETTER X */
+    XK_Y:                           0x0059, /* U+0059 LATIN CAPITAL LETTER Y */
+    XK_Z:                           0x005a, /* U+005A LATIN CAPITAL LETTER Z */
+    XK_bracketleft:                 0x005b, /* U+005B LEFT SQUARE BRACKET */
+    XK_backslash:                   0x005c, /* U+005C REVERSE SOLIDUS */
+    XK_bracketright:                0x005d, /* U+005D RIGHT SQUARE BRACKET */
+    XK_asciicircum:                 0x005e, /* U+005E CIRCUMFLEX ACCENT */
+    XK_underscore:                  0x005f, /* U+005F LOW LINE */
+    XK_grave:                       0x0060, /* U+0060 GRAVE ACCENT */
+    XK_quoteleft:                   0x0060, /* deprecated */
+    XK_a:                           0x0061, /* U+0061 LATIN SMALL LETTER A */
+    XK_b:                           0x0062, /* U+0062 LATIN SMALL LETTER B */
+    XK_c:                           0x0063, /* U+0063 LATIN SMALL LETTER C */
+    XK_d:                           0x0064, /* U+0064 LATIN SMALL LETTER D */
+    XK_e:                           0x0065, /* U+0065 LATIN SMALL LETTER E */
+    XK_f:                           0x0066, /* U+0066 LATIN SMALL LETTER F */
+    XK_g:                           0x0067, /* U+0067 LATIN SMALL LETTER G */
+    XK_h:                           0x0068, /* U+0068 LATIN SMALL LETTER H */
+    XK_i:                           0x0069, /* U+0069 LATIN SMALL LETTER I */
+    XK_j:                           0x006a, /* U+006A LATIN SMALL LETTER J */
+    XK_k:                           0x006b, /* U+006B LATIN SMALL LETTER K */
+    XK_l:                           0x006c, /* U+006C LATIN SMALL LETTER L */
+    XK_m:                           0x006d, /* U+006D LATIN SMALL LETTER M */
+    XK_n:                           0x006e, /* U+006E LATIN SMALL LETTER N */
+    XK_o:                           0x006f, /* U+006F LATIN SMALL LETTER O */
+    XK_p:                           0x0070, /* U+0070 LATIN SMALL LETTER P */
+    XK_q:                           0x0071, /* U+0071 LATIN SMALL LETTER Q */
+    XK_r:                           0x0072, /* U+0072 LATIN SMALL LETTER R */
+    XK_s:                           0x0073, /* U+0073 LATIN SMALL LETTER S */
+    XK_t:                           0x0074, /* U+0074 LATIN SMALL LETTER T */
+    XK_u:                           0x0075, /* U+0075 LATIN SMALL LETTER U */
+    XK_v:                           0x0076, /* U+0076 LATIN SMALL LETTER V */
+    XK_w:                           0x0077, /* U+0077 LATIN SMALL LETTER W */
+    XK_x:                           0x0078, /* U+0078 LATIN SMALL LETTER X */
+    XK_y:                           0x0079, /* U+0079 LATIN SMALL LETTER Y */
+    XK_z:                           0x007a, /* U+007A LATIN SMALL LETTER Z */
+    XK_braceleft:                   0x007b, /* U+007B LEFT CURLY BRACKET */
+    XK_bar:                         0x007c, /* U+007C VERTICAL LINE */
+    XK_braceright:                  0x007d, /* U+007D RIGHT CURLY BRACKET */
+    XK_asciitilde:                  0x007e, /* U+007E TILDE */
+
+    XK_nobreakspace:                0x00a0, /* U+00A0 NO-BREAK SPACE */
+    XK_exclamdown:                  0x00a1, /* U+00A1 INVERTED EXCLAMATION MARK */
+    XK_cent:                        0x00a2, /* U+00A2 CENT SIGN */
+    XK_sterling:                    0x00a3, /* U+00A3 POUND SIGN */
+    XK_currency:                    0x00a4, /* U+00A4 CURRENCY SIGN */
+    XK_yen:                         0x00a5, /* U+00A5 YEN SIGN */
+    XK_brokenbar:                   0x00a6, /* U+00A6 BROKEN BAR */
+    XK_section:                     0x00a7, /* U+00A7 SECTION SIGN */
+    XK_diaeresis:                   0x00a8, /* U+00A8 DIAERESIS */
+    XK_copyright:                   0x00a9, /* U+00A9 COPYRIGHT SIGN */
+    XK_ordfeminine:                 0x00aa, /* U+00AA FEMININE ORDINAL INDICATOR */
+    XK_guillemotleft:               0x00ab, /* U+00AB LEFT-POINTING DOUBLE ANGLE QUOTATION MARK */
+    XK_notsign:                     0x00ac, /* U+00AC NOT SIGN */
+    XK_hyphen:                      0x00ad, /* U+00AD SOFT HYPHEN */
+    XK_registered:                  0x00ae, /* U+00AE REGISTERED SIGN */
+    XK_macron:                      0x00af, /* U+00AF MACRON */
+    XK_degree:                      0x00b0, /* U+00B0 DEGREE SIGN */
+    XK_plusminus:                   0x00b1, /* U+00B1 PLUS-MINUS SIGN */
+    XK_twosuperior:                 0x00b2, /* U+00B2 SUPERSCRIPT TWO */
+    XK_threesuperior:               0x00b3, /* U+00B3 SUPERSCRIPT THREE */
+    XK_acute:                       0x00b4, /* U+00B4 ACUTE ACCENT */
+    XK_mu:                          0x00b5, /* U+00B5 MICRO SIGN */
+    XK_paragraph:                   0x00b6, /* U+00B6 PILCROW SIGN */
+    XK_periodcentered:              0x00b7, /* U+00B7 MIDDLE DOT */
+    XK_cedilla:                     0x00b8, /* U+00B8 CEDILLA */
+    XK_onesuperior:                 0x00b9, /* U+00B9 SUPERSCRIPT ONE */
+    XK_masculine:                   0x00ba, /* U+00BA MASCULINE ORDINAL INDICATOR */
+    XK_guillemotright:              0x00bb, /* U+00BB RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK */
+    XK_onequarter:                  0x00bc, /* U+00BC VULGAR FRACTION ONE QUARTER */
+    XK_onehalf:                     0x00bd, /* U+00BD VULGAR FRACTION ONE HALF */
+    XK_threequarters:               0x00be, /* U+00BE VULGAR FRACTION THREE QUARTERS */
+    XK_questiondown:                0x00bf, /* U+00BF INVERTED QUESTION MARK */
+    XK_Agrave:                      0x00c0, /* U+00C0 LATIN CAPITAL LETTER A WITH GRAVE */
+    XK_Aacute:                      0x00c1, /* U+00C1 LATIN CAPITAL LETTER A WITH ACUTE */
+    XK_Acircumflex:                 0x00c2, /* U+00C2 LATIN CAPITAL LETTER A WITH CIRCUMFLEX */
+    XK_Atilde:                      0x00c3, /* U+00C3 LATIN CAPITAL LETTER A WITH TILDE */
+    XK_Adiaeresis:                  0x00c4, /* U+00C4 LATIN CAPITAL LETTER A WITH DIAERESIS */
+    XK_Aring:                       0x00c5, /* U+00C5 LATIN CAPITAL LETTER A WITH RING ABOVE */
+    XK_AE:                          0x00c6, /* U+00C6 LATIN CAPITAL LETTER AE */
+    XK_Ccedilla:                    0x00c7, /* U+00C7 LATIN CAPITAL LETTER C WITH CEDILLA */
+    XK_Egrave:                      0x00c8, /* U+00C8 LATIN CAPITAL LETTER E WITH GRAVE */
+    XK_Eacute:                      0x00c9, /* U+00C9 LATIN CAPITAL LETTER E WITH ACUTE */
+    XK_Ecircumflex:                 0x00ca, /* U+00CA LATIN CAPITAL LETTER E WITH CIRCUMFLEX */
+    XK_Ediaeresis:                  0x00cb, /* U+00CB LATIN CAPITAL LETTER E WITH DIAERESIS */
+    XK_Igrave:                      0x00cc, /* U+00CC LATIN CAPITAL LETTER I WITH GRAVE */
+    XK_Iacute:                      0x00cd, /* U+00CD LATIN CAPITAL LETTER I WITH ACUTE */
+    XK_Icircumflex:                 0x00ce, /* U+00CE LATIN CAPITAL LETTER I WITH CIRCUMFLEX */
+    XK_Idiaeresis:                  0x00cf, /* U+00CF LATIN CAPITAL LETTER I WITH DIAERESIS */
+    XK_ETH:                         0x00d0, /* U+00D0 LATIN CAPITAL LETTER ETH */
+    XK_Eth:                         0x00d0, /* deprecated */
+    XK_Ntilde:                      0x00d1, /* U+00D1 LATIN CAPITAL LETTER N WITH TILDE */
+    XK_Ograve:                      0x00d2, /* U+00D2 LATIN CAPITAL LETTER O WITH GRAVE */
+    XK_Oacute:                      0x00d3, /* U+00D3 LATIN CAPITAL LETTER O WITH ACUTE */
+    XK_Ocircumflex:                 0x00d4, /* U+00D4 LATIN CAPITAL LETTER O WITH CIRCUMFLEX */
+    XK_Otilde:                      0x00d5, /* U+00D5 LATIN CAPITAL LETTER O WITH TILDE */
+    XK_Odiaeresis:                  0x00d6, /* U+00D6 LATIN CAPITAL LETTER O WITH DIAERESIS */
+    XK_multiply:                    0x00d7, /* U+00D7 MULTIPLICATION SIGN */
+    XK_Oslash:                      0x00d8, /* U+00D8 LATIN CAPITAL LETTER O WITH STROKE */
+    XK_Ooblique:                    0x00d8, /* U+00D8 LATIN CAPITAL LETTER O WITH STROKE */
+    XK_Ugrave:                      0x00d9, /* U+00D9 LATIN CAPITAL LETTER U WITH GRAVE */
+    XK_Uacute:                      0x00da, /* U+00DA LATIN CAPITAL LETTER U WITH ACUTE */
+    XK_Ucircumflex:                 0x00db, /* U+00DB LATIN CAPITAL LETTER U WITH CIRCUMFLEX */
+    XK_Udiaeresis:                  0x00dc, /* U+00DC LATIN CAPITAL LETTER U WITH DIAERESIS */
+    XK_Yacute:                      0x00dd, /* U+00DD LATIN CAPITAL LETTER Y WITH ACUTE */
+    XK_THORN:                       0x00de, /* U+00DE LATIN CAPITAL LETTER THORN */
+    XK_Thorn:                       0x00de, /* deprecated */
+    XK_ssharp:                      0x00df, /* U+00DF LATIN SMALL LETTER SHARP S */
+    XK_agrave:                      0x00e0, /* U+00E0 LATIN SMALL LETTER A WITH GRAVE */
+    XK_aacute:                      0x00e1, /* U+00E1 LATIN SMALL LETTER A WITH ACUTE */
+    XK_acircumflex:                 0x00e2, /* U+00E2 LATIN SMALL LETTER A WITH CIRCUMFLEX */
+    XK_atilde:                      0x00e3, /* U+00E3 LATIN SMALL LETTER A WITH TILDE */
+    XK_adiaeresis:                  0x00e4, /* U+00E4 LATIN SMALL LETTER A WITH DIAERESIS */
+    XK_aring:                       0x00e5, /* U+00E5 LATIN SMALL LETTER A WITH RING ABOVE */
+    XK_ae:                          0x00e6, /* U+00E6 LATIN SMALL LETTER AE */
+    XK_ccedilla:                    0x00e7, /* U+00E7 LATIN SMALL LETTER C WITH CEDILLA */
+    XK_egrave:                      0x00e8, /* U+00E8 LATIN SMALL LETTER E WITH GRAVE */
+    XK_eacute:                      0x00e9, /* U+00E9 LATIN SMALL LETTER E WITH ACUTE */
+    XK_ecircumflex:                 0x00ea, /* U+00EA LATIN SMALL LETTER E WITH CIRCUMFLEX */
+    XK_ediaeresis:                  0x00eb, /* U+00EB LATIN SMALL LETTER E WITH DIAERESIS */
+    XK_igrave:                      0x00ec, /* U+00EC LATIN SMALL LETTER I WITH GRAVE */
+    XK_iacute:                      0x00ed, /* U+00ED LATIN SMALL LETTER I WITH ACUTE */
+    XK_icircumflex:                 0x00ee, /* U+00EE LATIN SMALL LETTER I WITH CIRCUMFLEX */
+    XK_idiaeresis:                  0x00ef, /* U+00EF LATIN SMALL LETTER I WITH DIAERESIS */
+    XK_eth:                         0x00f0, /* U+00F0 LATIN SMALL LETTER ETH */
+    XK_ntilde:                      0x00f1, /* U+00F1 LATIN SMALL LETTER N WITH TILDE */
+    XK_ograve:                      0x00f2, /* U+00F2 LATIN SMALL LETTER O WITH GRAVE */
+    XK_oacute:                      0x00f3, /* U+00F3 LATIN SMALL LETTER O WITH ACUTE */
+    XK_ocircumflex:                 0x00f4, /* U+00F4 LATIN SMALL LETTER O WITH CIRCUMFLEX */
+    XK_otilde:                      0x00f5, /* U+00F5 LATIN SMALL LETTER O WITH TILDE */
+    XK_odiaeresis:                  0x00f6, /* U+00F6 LATIN SMALL LETTER O WITH DIAERESIS */
+    XK_division:                    0x00f7, /* U+00F7 DIVISION SIGN */
+    XK_oslash:                      0x00f8, /* U+00F8 LATIN SMALL LETTER O WITH STROKE */
+    XK_ooblique:                    0x00f8, /* U+00F8 LATIN SMALL LETTER O WITH STROKE */
+    XK_ugrave:                      0x00f9, /* U+00F9 LATIN SMALL LETTER U WITH GRAVE */
+    XK_uacute:                      0x00fa, /* U+00FA LATIN SMALL LETTER U WITH ACUTE */
+    XK_ucircumflex:                 0x00fb, /* U+00FB LATIN SMALL LETTER U WITH CIRCUMFLEX */
+    XK_udiaeresis:                  0x00fc, /* U+00FC LATIN SMALL LETTER U WITH DIAERESIS */
+    XK_yacute:                      0x00fd, /* U+00FD LATIN SMALL LETTER Y WITH ACUTE */
+    XK_thorn:                       0x00fe, /* U+00FE LATIN SMALL LETTER THORN */
+    XK_ydiaeresis:                  0x00ff, /* U+00FF LATIN SMALL LETTER Y WITH DIAERESIS */
+
+    /*
+     * Korean
+     * Byte 3 = 0x0e
+     */
+
+    XK_Hangul:                      0xff31, /* Hangul start/stop(toggle) */
+    XK_Hangul_Hanja:                0xff34, /* Start Hangul->Hanja Conversion */
+    XK_Hangul_Jeonja:               0xff38, /* Jeonja mode */
+
+    /*
+     * XFree86 vendor specific keysyms.
+     *
+     * The XFree86 keysym range is 0x10080001 - 0x1008FFFF.
+     */
+
+    XF86XK_ModeLock:                0x1008FF01,
+    XF86XK_MonBrightnessUp:         0x1008FF02,
+    XF86XK_MonBrightnessDown:       0x1008FF03,
+    XF86XK_KbdLightOnOff:           0x1008FF04,
+    XF86XK_KbdBrightnessUp:         0x1008FF05,
+    XF86XK_KbdBrightnessDown:       0x1008FF06,
+    XF86XK_Standby:                 0x1008FF10,
+    XF86XK_AudioLowerVolume:        0x1008FF11,
+    XF86XK_AudioMute:               0x1008FF12,
+    XF86XK_AudioRaiseVolume:        0x1008FF13,
+    XF86XK_AudioPlay:               0x1008FF14,
+    XF86XK_AudioStop:               0x1008FF15,
+    XF86XK_AudioPrev:               0x1008FF16,
+    XF86XK_AudioNext:               0x1008FF17,
+    XF86XK_HomePage:                0x1008FF18,
+    XF86XK_Mail:                    0x1008FF19,
+    XF86XK_Start:                   0x1008FF1A,
+    XF86XK_Search:                  0x1008FF1B,
+    XF86XK_AudioRecord:             0x1008FF1C,
+    XF86XK_Calculator:              0x1008FF1D,
+    XF86XK_Memo:                    0x1008FF1E,
+    XF86XK_ToDoList:                0x1008FF1F,
+    XF86XK_Calendar:                0x1008FF20,
+    XF86XK_PowerDown:               0x1008FF21,
+    XF86XK_ContrastAdjust:          0x1008FF22,
+    XF86XK_RockerUp:                0x1008FF23,
+    XF86XK_RockerDown:              0x1008FF24,
+    XF86XK_RockerEnter:             0x1008FF25,
+    XF86XK_Back:                    0x1008FF26,
+    XF86XK_Forward:                 0x1008FF27,
+    XF86XK_Stop:                    0x1008FF28,
+    XF86XK_Refresh:                 0x1008FF29,
+    XF86XK_PowerOff:                0x1008FF2A,
+    XF86XK_WakeUp:                  0x1008FF2B,
+    XF86XK_Eject:                   0x1008FF2C,
+    XF86XK_ScreenSaver:             0x1008FF2D,
+    XF86XK_WWW:                     0x1008FF2E,
+    XF86XK_Sleep:                   0x1008FF2F,
+    XF86XK_Favorites:               0x1008FF30,
+    XF86XK_AudioPause:              0x1008FF31,
+    XF86XK_AudioMedia:              0x1008FF32,
+    XF86XK_MyComputer:              0x1008FF33,
+    XF86XK_VendorHome:              0x1008FF34,
+    XF86XK_LightBulb:               0x1008FF35,
+    XF86XK_Shop:                    0x1008FF36,
+    XF86XK_History:                 0x1008FF37,
+    XF86XK_OpenURL:                 0x1008FF38,
+    XF86XK_AddFavorite:             0x1008FF39,
+    XF86XK_HotLinks:                0x1008FF3A,
+    XF86XK_BrightnessAdjust:        0x1008FF3B,
+    XF86XK_Finance:                 0x1008FF3C,
+    XF86XK_Community:               0x1008FF3D,
+    XF86XK_AudioRewind:             0x1008FF3E,
+    XF86XK_BackForward:             0x1008FF3F,
+    XF86XK_Launch0:                 0x1008FF40,
+    XF86XK_Launch1:                 0x1008FF41,
+    XF86XK_Launch2:                 0x1008FF42,
+    XF86XK_Launch3:                 0x1008FF43,
+    XF86XK_Launch4:                 0x1008FF44,
+    XF86XK_Launch5:                 0x1008FF45,
+    XF86XK_Launch6:                 0x1008FF46,
+    XF86XK_Launch7:                 0x1008FF47,
+    XF86XK_Launch8:                 0x1008FF48,
+    XF86XK_Launch9:                 0x1008FF49,
+    XF86XK_LaunchA:                 0x1008FF4A,
+    XF86XK_LaunchB:                 0x1008FF4B,
+    XF86XK_LaunchC:                 0x1008FF4C,
+    XF86XK_LaunchD:                 0x1008FF4D,
+    XF86XK_LaunchE:                 0x1008FF4E,
+    XF86XK_LaunchF:                 0x1008FF4F,
+    XF86XK_ApplicationLeft:         0x1008FF50,
+    XF86XK_ApplicationRight:        0x1008FF51,
+    XF86XK_Book:                    0x1008FF52,
+    XF86XK_CD:                      0x1008FF53,
+    XF86XK_Calculater:              0x1008FF54,
+    XF86XK_Clear:                   0x1008FF55,
+    XF86XK_Close:                   0x1008FF56,
+    XF86XK_Copy:                    0x1008FF57,
+    XF86XK_Cut:                     0x1008FF58,
+    XF86XK_Display:                 0x1008FF59,
+    XF86XK_DOS:                     0x1008FF5A,
+    XF86XK_Documents:               0x1008FF5B,
+    XF86XK_Excel:                   0x1008FF5C,
+    XF86XK_Explorer:                0x1008FF5D,
+    XF86XK_Game:                    0x1008FF5E,
+    XF86XK_Go:                      0x1008FF5F,
+    XF86XK_iTouch:                  0x1008FF60,
+    XF86XK_LogOff:                  0x1008FF61,
+    XF86XK_Market:                  0x1008FF62,
+    XF86XK_Meeting:                 0x1008FF63,
+    XF86XK_MenuKB:                  0x1008FF65,
+    XF86XK_MenuPB:                  0x1008FF66,
+    XF86XK_MySites:                 0x1008FF67,
+    XF86XK_New:                     0x1008FF68,
+    XF86XK_News:                    0x1008FF69,
+    XF86XK_OfficeHome:              0x1008FF6A,
+    XF86XK_Open:                    0x1008FF6B,
+    XF86XK_Option:                  0x1008FF6C,
+    XF86XK_Paste:                   0x1008FF6D,
+    XF86XK_Phone:                   0x1008FF6E,
+    XF86XK_Q:                       0x1008FF70,
+    XF86XK_Reply:                   0x1008FF72,
+    XF86XK_Reload:                  0x1008FF73,
+    XF86XK_RotateWindows:           0x1008FF74,
+    XF86XK_RotationPB:              0x1008FF75,
+    XF86XK_RotationKB:              0x1008FF76,
+    XF86XK_Save:                    0x1008FF77,
+    XF86XK_ScrollUp:                0x1008FF78,
+    XF86XK_ScrollDown:              0x1008FF79,
+    XF86XK_ScrollClick:             0x1008FF7A,
+    XF86XK_Send:                    0x1008FF7B,
+    XF86XK_Spell:                   0x1008FF7C,
+    XF86XK_SplitScreen:             0x1008FF7D,
+    XF86XK_Support:                 0x1008FF7E,
+    XF86XK_TaskPane:                0x1008FF7F,
+    XF86XK_Terminal:                0x1008FF80,
+    XF86XK_Tools:                   0x1008FF81,
+    XF86XK_Travel:                  0x1008FF82,
+    XF86XK_UserPB:                  0x1008FF84,
+    XF86XK_User1KB:                 0x1008FF85,
+    XF86XK_User2KB:                 0x1008FF86,
+    XF86XK_Video:                   0x1008FF87,
+    XF86XK_WheelButton:             0x1008FF88,
+    XF86XK_Word:                    0x1008FF89,
+    XF86XK_Xfer:                    0x1008FF8A,
+    XF86XK_ZoomIn:                  0x1008FF8B,
+    XF86XK_ZoomOut:                 0x1008FF8C,
+    XF86XK_Away:                    0x1008FF8D,
+    XF86XK_Messenger:               0x1008FF8E,
+    XF86XK_WebCam:                  0x1008FF8F,
+    XF86XK_MailForward:             0x1008FF90,
+    XF86XK_Pictures:                0x1008FF91,
+    XF86XK_Music:                   0x1008FF92,
+    XF86XK_Battery:                 0x1008FF93,
+    XF86XK_Bluetooth:               0x1008FF94,
+    XF86XK_WLAN:                    0x1008FF95,
+    XF86XK_UWB:                     0x1008FF96,
+    XF86XK_AudioForward:            0x1008FF97,
+    XF86XK_AudioRepeat:             0x1008FF98,
+    XF86XK_AudioRandomPlay:         0x1008FF99,
+    XF86XK_Subtitle:                0x1008FF9A,
+    XF86XK_AudioCycleTrack:         0x1008FF9B,
+    XF86XK_CycleAngle:              0x1008FF9C,
+    XF86XK_FrameBack:               0x1008FF9D,
+    XF86XK_FrameForward:            0x1008FF9E,
+    XF86XK_Time:                    0x1008FF9F,
+    XF86XK_Select:                  0x1008FFA0,
+    XF86XK_View:                    0x1008FFA1,
+    XF86XK_TopMenu:                 0x1008FFA2,
+    XF86XK_Red:                     0x1008FFA3,
+    XF86XK_Green:                   0x1008FFA4,
+    XF86XK_Yellow:                  0x1008FFA5,
+    XF86XK_Blue:                    0x1008FFA6,
+    XF86XK_Suspend:                 0x1008FFA7,
+    XF86XK_Hibernate:               0x1008FFA8,
+    XF86XK_TouchpadToggle:          0x1008FFA9,
+    XF86XK_TouchpadOn:              0x1008FFB0,
+    XF86XK_TouchpadOff:             0x1008FFB1,
+    XF86XK_AudioMicMute:            0x1008FFB2,
+    XF86XK_Switch_VT_1:             0x1008FE01,
+    XF86XK_Switch_VT_2:             0x1008FE02,
+    XF86XK_Switch_VT_3:             0x1008FE03,
+    XF86XK_Switch_VT_4:             0x1008FE04,
+    XF86XK_Switch_VT_5:             0x1008FE05,
+    XF86XK_Switch_VT_6:             0x1008FE06,
+    XF86XK_Switch_VT_7:             0x1008FE07,
+    XF86XK_Switch_VT_8:             0x1008FE08,
+    XF86XK_Switch_VT_9:             0x1008FE09,
+    XF86XK_Switch_VT_10:            0x1008FE0A,
+    XF86XK_Switch_VT_11:            0x1008FE0B,
+    XF86XK_Switch_VT_12:            0x1008FE0C,
+    XF86XK_Ungrab:                  0x1008FE20,
+    XF86XK_ClearGrab:               0x1008FE21,
+    XF86XK_Next_VMode:              0x1008FE22,
+    XF86XK_Prev_VMode:              0x1008FE23,
+    XF86XK_LogWindowTree:           0x1008FE24,
+    XF86XK_LogGrabInfo:             0x1008FE25,
+};

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/input/keysymdef.js

@@ -0,0 +1,688 @@
+/*
+ * Mapping from Unicode codepoints to X11/RFB keysyms
+ *
+ * This file was automatically generated from keysymdef.h
+ * DO NOT EDIT!
+ */
+
+/* Functions at the bottom */
+
+const codepoints = {
+    0x0100: 0x03c0, // XK_Amacron
+    0x0101: 0x03e0, // XK_amacron
+    0x0102: 0x01c3, // XK_Abreve
+    0x0103: 0x01e3, // XK_abreve
+    0x0104: 0x01a1, // XK_Aogonek
+    0x0105: 0x01b1, // XK_aogonek
+    0x0106: 0x01c6, // XK_Cacute
+    0x0107: 0x01e6, // XK_cacute
+    0x0108: 0x02c6, // XK_Ccircumflex
+    0x0109: 0x02e6, // XK_ccircumflex
+    0x010a: 0x02c5, // XK_Cabovedot
+    0x010b: 0x02e5, // XK_cabovedot
+    0x010c: 0x01c8, // XK_Ccaron
+    0x010d: 0x01e8, // XK_ccaron
+    0x010e: 0x01cf, // XK_Dcaron
+    0x010f: 0x01ef, // XK_dcaron
+    0x0110: 0x01d0, // XK_Dstroke
+    0x0111: 0x01f0, // XK_dstroke
+    0x0112: 0x03aa, // XK_Emacron
+    0x0113: 0x03ba, // XK_emacron
+    0x0116: 0x03cc, // XK_Eabovedot
+    0x0117: 0x03ec, // XK_eabovedot
+    0x0118: 0x01ca, // XK_Eogonek
+    0x0119: 0x01ea, // XK_eogonek
+    0x011a: 0x01cc, // XK_Ecaron
+    0x011b: 0x01ec, // XK_ecaron
+    0x011c: 0x02d8, // XK_Gcircumflex
+    0x011d: 0x02f8, // XK_gcircumflex
+    0x011e: 0x02ab, // XK_Gbreve
+    0x011f: 0x02bb, // XK_gbreve
+    0x0120: 0x02d5, // XK_Gabovedot
+    0x0121: 0x02f5, // XK_gabovedot
+    0x0122: 0x03ab, // XK_Gcedilla
+    0x0123: 0x03bb, // XK_gcedilla
+    0x0124: 0x02a6, // XK_Hcircumflex
+    0x0125: 0x02b6, // XK_hcircumflex
+    0x0126: 0x02a1, // XK_Hstroke
+    0x0127: 0x02b1, // XK_hstroke
+    0x0128: 0x03a5, // XK_Itilde
+    0x0129: 0x03b5, // XK_itilde
+    0x012a: 0x03cf, // XK_Imacron
+    0x012b: 0x03ef, // XK_imacron
+    0x012e: 0x03c7, // XK_Iogonek
+    0x012f: 0x03e7, // XK_iogonek
+    0x0130: 0x02a9, // XK_Iabovedot
+    0x0131: 0x02b9, // XK_idotless
+    0x0134: 0x02ac, // XK_Jcircumflex
+    0x0135: 0x02bc, // XK_jcircumflex
+    0x0136: 0x03d3, // XK_Kcedilla
+    0x0137: 0x03f3, // XK_kcedilla
+    0x0138: 0x03a2, // XK_kra
+    0x0139: 0x01c5, // XK_Lacute
+    0x013a: 0x01e5, // XK_lacute
+    0x013b: 0x03a6, // XK_Lcedilla
+    0x013c: 0x03b6, // XK_lcedilla
+    0x013d: 0x01a5, // XK_Lcaron
+    0x013e: 0x01b5, // XK_lcaron
+    0x0141: 0x01a3, // XK_Lstroke
+    0x0142: 0x01b3, // XK_lstroke
+    0x0143: 0x01d1, // XK_Nacute
+    0x0144: 0x01f1, // XK_nacute
+    0x0145: 0x03d1, // XK_Ncedilla
+    0x0146: 0x03f1, // XK_ncedilla
+    0x0147: 0x01d2, // XK_Ncaron
+    0x0148: 0x01f2, // XK_ncaron
+    0x014a: 0x03bd, // XK_ENG
+    0x014b: 0x03bf, // XK_eng
+    0x014c: 0x03d2, // XK_Omacron
+    0x014d: 0x03f2, // XK_omacron
+    0x0150: 0x01d5, // XK_Odoubleacute
+    0x0151: 0x01f5, // XK_odoubleacute
+    0x0152: 0x13bc, // XK_OE
+    0x0153: 0x13bd, // XK_oe
+    0x0154: 0x01c0, // XK_Racute
+    0x0155: 0x01e0, // XK_racute
+    0x0156: 0x03a3, // XK_Rcedilla
+    0x0157: 0x03b3, // XK_rcedilla
+    0x0158: 0x01d8, // XK_Rcaron
+    0x0159: 0x01f8, // XK_rcaron
+    0x015a: 0x01a6, // XK_Sacute
+    0x015b: 0x01b6, // XK_sacute
+    0x015c: 0x02de, // XK_Scircumflex
+    0x015d: 0x02fe, // XK_scircumflex
+    0x015e: 0x01aa, // XK_Scedilla
+    0x015f: 0x01ba, // XK_scedilla
+    0x0160: 0x01a9, // XK_Scaron
+    0x0161: 0x01b9, // XK_scaron
+    0x0162: 0x01de, // XK_Tcedilla
+    0x0163: 0x01fe, // XK_tcedilla
+    0x0164: 0x01ab, // XK_Tcaron
+    0x0165: 0x01bb, // XK_tcaron
+    0x0166: 0x03ac, // XK_Tslash
+    0x0167: 0x03bc, // XK_tslash
+    0x0168: 0x03dd, // XK_Utilde
+    0x0169: 0x03fd, // XK_utilde
+    0x016a: 0x03de, // XK_Umacron
+    0x016b: 0x03fe, // XK_umacron
+    0x016c: 0x02dd, // XK_Ubreve
+    0x016d: 0x02fd, // XK_ubreve
+    0x016e: 0x01d9, // XK_Uring
+    0x016f: 0x01f9, // XK_uring
+    0x0170: 0x01db, // XK_Udoubleacute
+    0x0171: 0x01fb, // XK_udoubleacute
+    0x0172: 0x03d9, // XK_Uogonek
+    0x0173: 0x03f9, // XK_uogonek
+    0x0178: 0x13be, // XK_Ydiaeresis
+    0x0179: 0x01ac, // XK_Zacute
+    0x017a: 0x01bc, // XK_zacute
+    0x017b: 0x01af, // XK_Zabovedot
+    0x017c: 0x01bf, // XK_zabovedot
+    0x017d: 0x01ae, // XK_Zcaron
+    0x017e: 0x01be, // XK_zcaron
+    0x0192: 0x08f6, // XK_function
+    0x01d2: 0x10001d1, // XK_Ocaron
+    0x02c7: 0x01b7, // XK_caron
+    0x02d8: 0x01a2, // XK_breve
+    0x02d9: 0x01ff, // XK_abovedot
+    0x02db: 0x01b2, // XK_ogonek
+    0x02dd: 0x01bd, // XK_doubleacute
+    0x0385: 0x07ae, // XK_Greek_accentdieresis
+    0x0386: 0x07a1, // XK_Greek_ALPHAaccent
+    0x0388: 0x07a2, // XK_Greek_EPSILONaccent
+    0x0389: 0x07a3, // XK_Greek_ETAaccent
+    0x038a: 0x07a4, // XK_Greek_IOTAaccent
+    0x038c: 0x07a7, // XK_Greek_OMICRONaccent
+    0x038e: 0x07a8, // XK_Greek_UPSILONaccent
+    0x038f: 0x07ab, // XK_Greek_OMEGAaccent
+    0x0390: 0x07b6, // XK_Greek_iotaaccentdieresis
+    0x0391: 0x07c1, // XK_Greek_ALPHA
+    0x0392: 0x07c2, // XK_Greek_BETA
+    0x0393: 0x07c3, // XK_Greek_GAMMA
+    0x0394: 0x07c4, // XK_Greek_DELTA
+    0x0395: 0x07c5, // XK_Greek_EPSILON
+    0x0396: 0x07c6, // XK_Greek_ZETA
+    0x0397: 0x07c7, // XK_Greek_ETA
+    0x0398: 0x07c8, // XK_Greek_THETA
+    0x0399: 0x07c9, // XK_Greek_IOTA
+    0x039a: 0x07ca, // XK_Greek_KAPPA
+    0x039b: 0x07cb, // XK_Greek_LAMDA
+    0x039c: 0x07cc, // XK_Greek_MU
+    0x039d: 0x07cd, // XK_Greek_NU
+    0x039e: 0x07ce, // XK_Greek_XI
+    0x039f: 0x07cf, // XK_Greek_OMICRON
+    0x03a0: 0x07d0, // XK_Greek_PI
+    0x03a1: 0x07d1, // XK_Greek_RHO
+    0x03a3: 0x07d2, // XK_Greek_SIGMA
+    0x03a4: 0x07d4, // XK_Greek_TAU
+    0x03a5: 0x07d5, // XK_Greek_UPSILON
+    0x03a6: 0x07d6, // XK_Greek_PHI
+    0x03a7: 0x07d7, // XK_Greek_CHI
+    0x03a8: 0x07d8, // XK_Greek_PSI
+    0x03a9: 0x07d9, // XK_Greek_OMEGA
+    0x03aa: 0x07a5, // XK_Greek_IOTAdieresis
+    0x03ab: 0x07a9, // XK_Greek_UPSILONdieresis
+    0x03ac: 0x07b1, // XK_Greek_alphaaccent
+    0x03ad: 0x07b2, // XK_Greek_epsilonaccent
+    0x03ae: 0x07b3, // XK_Greek_etaaccent
+    0x03af: 0x07b4, // XK_Greek_iotaaccent
+    0x03b0: 0x07ba, // XK_Greek_upsilonaccentdieresis
+    0x03b1: 0x07e1, // XK_Greek_alpha
+    0x03b2: 0x07e2, // XK_Greek_beta
+    0x03b3: 0x07e3, // XK_Greek_gamma
+    0x03b4: 0x07e4, // XK_Greek_delta
+    0x03b5: 0x07e5, // XK_Greek_epsilon
+    0x03b6: 0x07e6, // XK_Greek_zeta
+    0x03b7: 0x07e7, // XK_Greek_eta
+    0x03b8: 0x07e8, // XK_Greek_theta
+    0x03b9: 0x07e9, // XK_Greek_iota
+    0x03ba: 0x07ea, // XK_Greek_kappa
+    0x03bb: 0x07eb, // XK_Greek_lamda
+    0x03bc: 0x07ec, // XK_Greek_mu
+    0x03bd: 0x07ed, // XK_Greek_nu
+    0x03be: 0x07ee, // XK_Greek_xi
+    0x03bf: 0x07ef, // XK_Greek_omicron
+    0x03c0: 0x07f0, // XK_Greek_pi
+    0x03c1: 0x07f1, // XK_Greek_rho
+    0x03c2: 0x07f3, // XK_Greek_finalsmallsigma
+    0x03c3: 0x07f2, // XK_Greek_sigma
+    0x03c4: 0x07f4, // XK_Greek_tau
+    0x03c5: 0x07f5, // XK_Greek_upsilon
+    0x03c6: 0x07f6, // XK_Greek_phi
+    0x03c7: 0x07f7, // XK_Greek_chi
+    0x03c8: 0x07f8, // XK_Greek_psi
+    0x03c9: 0x07f9, // XK_Greek_omega
+    0x03ca: 0x07b5, // XK_Greek_iotadieresis
+    0x03cb: 0x07b9, // XK_Greek_upsilondieresis
+    0x03cc: 0x07b7, // XK_Greek_omicronaccent
+    0x03cd: 0x07b8, // XK_Greek_upsilonaccent
+    0x03ce: 0x07bb, // XK_Greek_omegaaccent
+    0x0401: 0x06b3, // XK_Cyrillic_IO
+    0x0402: 0x06b1, // XK_Serbian_DJE
+    0x0403: 0x06b2, // XK_Macedonia_GJE
+    0x0404: 0x06b4, // XK_Ukrainian_IE
+    0x0405: 0x06b5, // XK_Macedonia_DSE
+    0x0406: 0x06b6, // XK_Ukrainian_I
+    0x0407: 0x06b7, // XK_Ukrainian_YI
+    0x0408: 0x06b8, // XK_Cyrillic_JE
+    0x0409: 0x06b9, // XK_Cyrillic_LJE
+    0x040a: 0x06ba, // XK_Cyrillic_NJE
+    0x040b: 0x06bb, // XK_Serbian_TSHE
+    0x040c: 0x06bc, // XK_Macedonia_KJE
+    0x040e: 0x06be, // XK_Byelorussian_SHORTU
+    0x040f: 0x06bf, // XK_Cyrillic_DZHE
+    0x0410: 0x06e1, // XK_Cyrillic_A
+    0x0411: 0x06e2, // XK_Cyrillic_BE
+    0x0412: 0x06f7, // XK_Cyrillic_VE
+    0x0413: 0x06e7, // XK_Cyrillic_GHE
+    0x0414: 0x06e4, // XK_Cyrillic_DE
+    0x0415: 0x06e5, // XK_Cyrillic_IE
+    0x0416: 0x06f6, // XK_Cyrillic_ZHE
+    0x0417: 0x06fa, // XK_Cyrillic_ZE
+    0x0418: 0x06e9, // XK_Cyrillic_I
+    0x0419: 0x06ea, // XK_Cyrillic_SHORTI
+    0x041a: 0x06eb, // XK_Cyrillic_KA
+    0x041b: 0x06ec, // XK_Cyrillic_EL
+    0x041c: 0x06ed, // XK_Cyrillic_EM
+    0x041d: 0x06ee, // XK_Cyrillic_EN
+    0x041e: 0x06ef, // XK_Cyrillic_O
+    0x041f: 0x06f0, // XK_Cyrillic_PE
+    0x0420: 0x06f2, // XK_Cyrillic_ER
+    0x0421: 0x06f3, // XK_Cyrillic_ES
+    0x0422: 0x06f4, // XK_Cyrillic_TE
+    0x0423: 0x06f5, // XK_Cyrillic_U
+    0x0424: 0x06e6, // XK_Cyrillic_EF
+    0x0425: 0x06e8, // XK_Cyrillic_HA
+    0x0426: 0x06e3, // XK_Cyrillic_TSE
+    0x0427: 0x06fe, // XK_Cyrillic_CHE
+    0x0428: 0x06fb, // XK_Cyrillic_SHA
+    0x0429: 0x06fd, // XK_Cyrillic_SHCHA
+    0x042a: 0x06ff, // XK_Cyrillic_HARDSIGN
+    0x042b: 0x06f9, // XK_Cyrillic_YERU
+    0x042c: 0x06f8, // XK_Cyrillic_SOFTSIGN
+    0x042d: 0x06fc, // XK_Cyrillic_E
+    0x042e: 0x06e0, // XK_Cyrillic_YU
+    0x042f: 0x06f1, // XK_Cyrillic_YA
+    0x0430: 0x06c1, // XK_Cyrillic_a
+    0x0431: 0x06c2, // XK_Cyrillic_be
+    0x0432: 0x06d7, // XK_Cyrillic_ve
+    0x0433: 0x06c7, // XK_Cyrillic_ghe
+    0x0434: 0x06c4, // XK_Cyrillic_de
+    0x0435: 0x06c5, // XK_Cyrillic_ie
+    0x0436: 0x06d6, // XK_Cyrillic_zhe
+    0x0437: 0x06da, // XK_Cyrillic_ze
+    0x0438: 0x06c9, // XK_Cyrillic_i
+    0x0439: 0x06ca, // XK_Cyrillic_shorti
+    0x043a: 0x06cb, // XK_Cyrillic_ka
+    0x043b: 0x06cc, // XK_Cyrillic_el
+    0x043c: 0x06cd, // XK_Cyrillic_em
+    0x043d: 0x06ce, // XK_Cyrillic_en
+    0x043e: 0x06cf, // XK_Cyrillic_o
+    0x043f: 0x06d0, // XK_Cyrillic_pe
+    0x0440: 0x06d2, // XK_Cyrillic_er
+    0x0441: 0x06d3, // XK_Cyrillic_es
+    0x0442: 0x06d4, // XK_Cyrillic_te
+    0x0443: 0x06d5, // XK_Cyrillic_u
+    0x0444: 0x06c6, // XK_Cyrillic_ef
+    0x0445: 0x06c8, // XK_Cyrillic_ha
+    0x0446: 0x06c3, // XK_Cyrillic_tse
+    0x0447: 0x06de, // XK_Cyrillic_che
+    0x0448: 0x06db, // XK_Cyrillic_sha
+    0x0449: 0x06dd, // XK_Cyrillic_shcha
+    0x044a: 0x06df, // XK_Cyrillic_hardsign
+    0x044b: 0x06d9, // XK_Cyrillic_yeru
+    0x044c: 0x06d8, // XK_Cyrillic_softsign
+    0x044d: 0x06dc, // XK_Cyrillic_e
+    0x044e: 0x06c0, // XK_Cyrillic_yu
+    0x044f: 0x06d1, // XK_Cyrillic_ya
+    0x0451: 0x06a3, // XK_Cyrillic_io
+    0x0452: 0x06a1, // XK_Serbian_dje
+    0x0453: 0x06a2, // XK_Macedonia_gje
+    0x0454: 0x06a4, // XK_Ukrainian_ie
+    0x0455: 0x06a5, // XK_Macedonia_dse
+    0x0456: 0x06a6, // XK_Ukrainian_i
+    0x0457: 0x06a7, // XK_Ukrainian_yi
+    0x0458: 0x06a8, // XK_Cyrillic_je
+    0x0459: 0x06a9, // XK_Cyrillic_lje
+    0x045a: 0x06aa, // XK_Cyrillic_nje
+    0x045b: 0x06ab, // XK_Serbian_tshe
+    0x045c: 0x06ac, // XK_Macedonia_kje
+    0x045e: 0x06ae, // XK_Byelorussian_shortu
+    0x045f: 0x06af, // XK_Cyrillic_dzhe
+    0x0490: 0x06bd, // XK_Ukrainian_GHE_WITH_UPTURN
+    0x0491: 0x06ad, // XK_Ukrainian_ghe_with_upturn
+    0x05d0: 0x0ce0, // XK_hebrew_aleph
+    0x05d1: 0x0ce1, // XK_hebrew_bet
+    0x05d2: 0x0ce2, // XK_hebrew_gimel
+    0x05d3: 0x0ce3, // XK_hebrew_dalet
+    0x05d4: 0x0ce4, // XK_hebrew_he
+    0x05d5: 0x0ce5, // XK_hebrew_waw
+    0x05d6: 0x0ce6, // XK_hebrew_zain
+    0x05d7: 0x0ce7, // XK_hebrew_chet
+    0x05d8: 0x0ce8, // XK_hebrew_tet
+    0x05d9: 0x0ce9, // XK_hebrew_yod
+    0x05da: 0x0cea, // XK_hebrew_finalkaph
+    0x05db: 0x0ceb, // XK_hebrew_kaph
+    0x05dc: 0x0cec, // XK_hebrew_lamed
+    0x05dd: 0x0ced, // XK_hebrew_finalmem
+    0x05de: 0x0cee, // XK_hebrew_mem
+    0x05df: 0x0cef, // XK_hebrew_finalnun
+    0x05e0: 0x0cf0, // XK_hebrew_nun
+    0x05e1: 0x0cf1, // XK_hebrew_samech
+    0x05e2: 0x0cf2, // XK_hebrew_ayin
+    0x05e3: 0x0cf3, // XK_hebrew_finalpe
+    0x05e4: 0x0cf4, // XK_hebrew_pe
+    0x05e5: 0x0cf5, // XK_hebrew_finalzade
+    0x05e6: 0x0cf6, // XK_hebrew_zade
+    0x05e7: 0x0cf7, // XK_hebrew_qoph
+    0x05e8: 0x0cf8, // XK_hebrew_resh
+    0x05e9: 0x0cf9, // XK_hebrew_shin
+    0x05ea: 0x0cfa, // XK_hebrew_taw
+    0x060c: 0x05ac, // XK_Arabic_comma
+    0x061b: 0x05bb, // XK_Arabic_semicolon
+    0x061f: 0x05bf, // XK_Arabic_question_mark
+    0x0621: 0x05c1, // XK_Arabic_hamza
+    0x0622: 0x05c2, // XK_Arabic_maddaonalef
+    0x0623: 0x05c3, // XK_Arabic_hamzaonalef
+    0x0624: 0x05c4, // XK_Arabic_hamzaonwaw
+    0x0625: 0x05c5, // XK_Arabic_hamzaunderalef
+    0x0626: 0x05c6, // XK_Arabic_hamzaonyeh
+    0x0627: 0x05c7, // XK_Arabic_alef
+    0x0628: 0x05c8, // XK_Arabic_beh
+    0x0629: 0x05c9, // XK_Arabic_tehmarbuta
+    0x062a: 0x05ca, // XK_Arabic_teh
+    0x062b: 0x05cb, // XK_Arabic_theh
+    0x062c: 0x05cc, // XK_Arabic_jeem
+    0x062d: 0x05cd, // XK_Arabic_hah
+    0x062e: 0x05ce, // XK_Arabic_khah
+    0x062f: 0x05cf, // XK_Arabic_dal
+    0x0630: 0x05d0, // XK_Arabic_thal
+    0x0631: 0x05d1, // XK_Arabic_ra
+    0x0632: 0x05d2, // XK_Arabic_zain
+    0x0633: 0x05d3, // XK_Arabic_seen
+    0x0634: 0x05d4, // XK_Arabic_sheen
+    0x0635: 0x05d5, // XK_Arabic_sad
+    0x0636: 0x05d6, // XK_Arabic_dad
+    0x0637: 0x05d7, // XK_Arabic_tah
+    0x0638: 0x05d8, // XK_Arabic_zah
+    0x0639: 0x05d9, // XK_Arabic_ain
+    0x063a: 0x05da, // XK_Arabic_ghain
+    0x0640: 0x05e0, // XK_Arabic_tatweel
+    0x0641: 0x05e1, // XK_Arabic_feh
+    0x0642: 0x05e2, // XK_Arabic_qaf
+    0x0643: 0x05e3, // XK_Arabic_kaf
+    0x0644: 0x05e4, // XK_Arabic_lam
+    0x0645: 0x05e5, // XK_Arabic_meem
+    0x0646: 0x05e6, // XK_Arabic_noon
+    0x0647: 0x05e7, // XK_Arabic_ha
+    0x0648: 0x05e8, // XK_Arabic_waw
+    0x0649: 0x05e9, // XK_Arabic_alefmaksura
+    0x064a: 0x05ea, // XK_Arabic_yeh
+    0x064b: 0x05eb, // XK_Arabic_fathatan
+    0x064c: 0x05ec, // XK_Arabic_dammatan
+    0x064d: 0x05ed, // XK_Arabic_kasratan
+    0x064e: 0x05ee, // XK_Arabic_fatha
+    0x064f: 0x05ef, // XK_Arabic_damma
+    0x0650: 0x05f0, // XK_Arabic_kasra
+    0x0651: 0x05f1, // XK_Arabic_shadda
+    0x0652: 0x05f2, // XK_Arabic_sukun
+    0x0e01: 0x0da1, // XK_Thai_kokai
+    0x0e02: 0x0da2, // XK_Thai_khokhai
+    0x0e03: 0x0da3, // XK_Thai_khokhuat
+    0x0e04: 0x0da4, // XK_Thai_khokhwai
+    0x0e05: 0x0da5, // XK_Thai_khokhon
+    0x0e06: 0x0da6, // XK_Thai_khorakhang
+    0x0e07: 0x0da7, // XK_Thai_ngongu
+    0x0e08: 0x0da8, // XK_Thai_chochan
+    0x0e09: 0x0da9, // XK_Thai_choching
+    0x0e0a: 0x0daa, // XK_Thai_chochang
+    0x0e0b: 0x0dab, // XK_Thai_soso
+    0x0e0c: 0x0dac, // XK_Thai_chochoe
+    0x0e0d: 0x0dad, // XK_Thai_yoying
+    0x0e0e: 0x0dae, // XK_Thai_dochada
+    0x0e0f: 0x0daf, // XK_Thai_topatak
+    0x0e10: 0x0db0, // XK_Thai_thothan
+    0x0e11: 0x0db1, // XK_Thai_thonangmontho
+    0x0e12: 0x0db2, // XK_Thai_thophuthao
+    0x0e13: 0x0db3, // XK_Thai_nonen
+    0x0e14: 0x0db4, // XK_Thai_dodek
+    0x0e15: 0x0db5, // XK_Thai_totao
+    0x0e16: 0x0db6, // XK_Thai_thothung
+    0x0e17: 0x0db7, // XK_Thai_thothahan
+    0x0e18: 0x0db8, // XK_Thai_thothong
+    0x0e19: 0x0db9, // XK_Thai_nonu
+    0x0e1a: 0x0dba, // XK_Thai_bobaimai
+    0x0e1b: 0x0dbb, // XK_Thai_popla
+    0x0e1c: 0x0dbc, // XK_Thai_phophung
+    0x0e1d: 0x0dbd, // XK_Thai_fofa
+    0x0e1e: 0x0dbe, // XK_Thai_phophan
+    0x0e1f: 0x0dbf, // XK_Thai_fofan
+    0x0e20: 0x0dc0, // XK_Thai_phosamphao
+    0x0e21: 0x0dc1, // XK_Thai_moma
+    0x0e22: 0x0dc2, // XK_Thai_yoyak
+    0x0e23: 0x0dc3, // XK_Thai_rorua
+    0x0e24: 0x0dc4, // XK_Thai_ru
+    0x0e25: 0x0dc5, // XK_Thai_loling
+    0x0e26: 0x0dc6, // XK_Thai_lu
+    0x0e27: 0x0dc7, // XK_Thai_wowaen
+    0x0e28: 0x0dc8, // XK_Thai_sosala
+    0x0e29: 0x0dc9, // XK_Thai_sorusi
+    0x0e2a: 0x0dca, // XK_Thai_sosua
+    0x0e2b: 0x0dcb, // XK_Thai_hohip
+    0x0e2c: 0x0dcc, // XK_Thai_lochula
+    0x0e2d: 0x0dcd, // XK_Thai_oang
+    0x0e2e: 0x0dce, // XK_Thai_honokhuk
+    0x0e2f: 0x0dcf, // XK_Thai_paiyannoi
+    0x0e30: 0x0dd0, // XK_Thai_saraa
+    0x0e31: 0x0dd1, // XK_Thai_maihanakat
+    0x0e32: 0x0dd2, // XK_Thai_saraaa
+    0x0e33: 0x0dd3, // XK_Thai_saraam
+    0x0e34: 0x0dd4, // XK_Thai_sarai
+    0x0e35: 0x0dd5, // XK_Thai_saraii
+    0x0e36: 0x0dd6, // XK_Thai_saraue
+    0x0e37: 0x0dd7, // XK_Thai_sarauee
+    0x0e38: 0x0dd8, // XK_Thai_sarau
+    0x0e39: 0x0dd9, // XK_Thai_sarauu
+    0x0e3a: 0x0dda, // XK_Thai_phinthu
+    0x0e3f: 0x0ddf, // XK_Thai_baht
+    0x0e40: 0x0de0, // XK_Thai_sarae
+    0x0e41: 0x0de1, // XK_Thai_saraae
+    0x0e42: 0x0de2, // XK_Thai_sarao
+    0x0e43: 0x0de3, // XK_Thai_saraaimaimuan
+    0x0e44: 0x0de4, // XK_Thai_saraaimaimalai
+    0x0e45: 0x0de5, // XK_Thai_lakkhangyao
+    0x0e46: 0x0de6, // XK_Thai_maiyamok
+    0x0e47: 0x0de7, // XK_Thai_maitaikhu
+    0x0e48: 0x0de8, // XK_Thai_maiek
+    0x0e49: 0x0de9, // XK_Thai_maitho
+    0x0e4a: 0x0dea, // XK_Thai_maitri
+    0x0e4b: 0x0deb, // XK_Thai_maichattawa
+    0x0e4c: 0x0dec, // XK_Thai_thanthakhat
+    0x0e4d: 0x0ded, // XK_Thai_nikhahit
+    0x0e50: 0x0df0, // XK_Thai_leksun
+    0x0e51: 0x0df1, // XK_Thai_leknung
+    0x0e52: 0x0df2, // XK_Thai_leksong
+    0x0e53: 0x0df3, // XK_Thai_leksam
+    0x0e54: 0x0df4, // XK_Thai_leksi
+    0x0e55: 0x0df5, // XK_Thai_lekha
+    0x0e56: 0x0df6, // XK_Thai_lekhok
+    0x0e57: 0x0df7, // XK_Thai_lekchet
+    0x0e58: 0x0df8, // XK_Thai_lekpaet
+    0x0e59: 0x0df9, // XK_Thai_lekkao
+    0x2002: 0x0aa2, // XK_enspace
+    0x2003: 0x0aa1, // XK_emspace
+    0x2004: 0x0aa3, // XK_em3space
+    0x2005: 0x0aa4, // XK_em4space
+    0x2007: 0x0aa5, // XK_digitspace
+    0x2008: 0x0aa6, // XK_punctspace
+    0x2009: 0x0aa7, // XK_thinspace
+    0x200a: 0x0aa8, // XK_hairspace
+    0x2012: 0x0abb, // XK_figdash
+    0x2013: 0x0aaa, // XK_endash
+    0x2014: 0x0aa9, // XK_emdash
+    0x2015: 0x07af, // XK_Greek_horizbar
+    0x2017: 0x0cdf, // XK_hebrew_doublelowline
+    0x2018: 0x0ad0, // XK_leftsinglequotemark
+    0x2019: 0x0ad1, // XK_rightsinglequotemark
+    0x201a: 0x0afd, // XK_singlelowquotemark
+    0x201c: 0x0ad2, // XK_leftdoublequotemark
+    0x201d: 0x0ad3, // XK_rightdoublequotemark
+    0x201e: 0x0afe, // XK_doublelowquotemark
+    0x2020: 0x0af1, // XK_dagger
+    0x2021: 0x0af2, // XK_doubledagger
+    0x2022: 0x0ae6, // XK_enfilledcircbullet
+    0x2025: 0x0aaf, // XK_doubbaselinedot
+    0x2026: 0x0aae, // XK_ellipsis
+    0x2030: 0x0ad5, // XK_permille
+    0x2032: 0x0ad6, // XK_minutes
+    0x2033: 0x0ad7, // XK_seconds
+    0x2038: 0x0afc, // XK_caret
+    0x203e: 0x047e, // XK_overline
+    0x20a9: 0x0eff, // XK_Korean_Won
+    0x20ac: 0x20ac, // XK_EuroSign
+    0x2105: 0x0ab8, // XK_careof
+    0x2116: 0x06b0, // XK_numerosign
+    0x2117: 0x0afb, // XK_phonographcopyright
+    0x211e: 0x0ad4, // XK_prescription
+    0x2122: 0x0ac9, // XK_trademark
+    0x2153: 0x0ab0, // XK_onethird
+    0x2154: 0x0ab1, // XK_twothirds
+    0x2155: 0x0ab2, // XK_onefifth
+    0x2156: 0x0ab3, // XK_twofifths
+    0x2157: 0x0ab4, // XK_threefifths
+    0x2158: 0x0ab5, // XK_fourfifths
+    0x2159: 0x0ab6, // XK_onesixth
+    0x215a: 0x0ab7, // XK_fivesixths
+    0x215b: 0x0ac3, // XK_oneeighth
+    0x215c: 0x0ac4, // XK_threeeighths
+    0x215d: 0x0ac5, // XK_fiveeighths
+    0x215e: 0x0ac6, // XK_seveneighths
+    0x2190: 0x08fb, // XK_leftarrow
+    0x2191: 0x08fc, // XK_uparrow
+    0x2192: 0x08fd, // XK_rightarrow
+    0x2193: 0x08fe, // XK_downarrow
+    0x21d2: 0x08ce, // XK_implies
+    0x21d4: 0x08cd, // XK_ifonlyif
+    0x2202: 0x08ef, // XK_partialderivative
+    0x2207: 0x08c5, // XK_nabla
+    0x2218: 0x0bca, // XK_jot
+    0x221a: 0x08d6, // XK_radical
+    0x221d: 0x08c1, // XK_variation
+    0x221e: 0x08c2, // XK_infinity
+    0x2227: 0x08de, // XK_logicaland
+    0x2228: 0x08df, // XK_logicalor
+    0x2229: 0x08dc, // XK_intersection
+    0x222a: 0x08dd, // XK_union
+    0x222b: 0x08bf, // XK_integral
+    0x2234: 0x08c0, // XK_therefore
+    0x223c: 0x08c8, // XK_approximate
+    0x2243: 0x08c9, // XK_similarequal
+    0x2245: 0x1002248, // XK_approxeq
+    0x2260: 0x08bd, // XK_notequal
+    0x2261: 0x08cf, // XK_identical
+    0x2264: 0x08bc, // XK_lessthanequal
+    0x2265: 0x08be, // XK_greaterthanequal
+    0x2282: 0x08da, // XK_includedin
+    0x2283: 0x08db, // XK_includes
+    0x22a2: 0x0bfc, // XK_righttack
+    0x22a3: 0x0bdc, // XK_lefttack
+    0x22a4: 0x0bc2, // XK_downtack
+    0x22a5: 0x0bce, // XK_uptack
+    0x2308: 0x0bd3, // XK_upstile
+    0x230a: 0x0bc4, // XK_downstile
+    0x2315: 0x0afa, // XK_telephonerecorder
+    0x2320: 0x08a4, // XK_topintegral
+    0x2321: 0x08a5, // XK_botintegral
+    0x2395: 0x0bcc, // XK_quad
+    0x239b: 0x08ab, // XK_topleftparens
+    0x239d: 0x08ac, // XK_botleftparens
+    0x239e: 0x08ad, // XK_toprightparens
+    0x23a0: 0x08ae, // XK_botrightparens
+    0x23a1: 0x08a7, // XK_topleftsqbracket
+    0x23a3: 0x08a8, // XK_botleftsqbracket
+    0x23a4: 0x08a9, // XK_toprightsqbracket
+    0x23a6: 0x08aa, // XK_botrightsqbracket
+    0x23a8: 0x08af, // XK_leftmiddlecurlybrace
+    0x23ac: 0x08b0, // XK_rightmiddlecurlybrace
+    0x23b7: 0x08a1, // XK_leftradical
+    0x23ba: 0x09ef, // XK_horizlinescan1
+    0x23bb: 0x09f0, // XK_horizlinescan3
+    0x23bc: 0x09f2, // XK_horizlinescan7
+    0x23bd: 0x09f3, // XK_horizlinescan9
+    0x2409: 0x09e2, // XK_ht
+    0x240a: 0x09e5, // XK_lf
+    0x240b: 0x09e9, // XK_vt
+    0x240c: 0x09e3, // XK_ff
+    0x240d: 0x09e4, // XK_cr
+    0x2423: 0x0aac, // XK_signifblank
+    0x2424: 0x09e8, // XK_nl
+    0x2500: 0x08a3, // XK_horizconnector
+    0x2502: 0x08a6, // XK_vertconnector
+    0x250c: 0x08a2, // XK_topleftradical
+    0x2510: 0x09eb, // XK_uprightcorner
+    0x2514: 0x09ed, // XK_lowleftcorner
+    0x2518: 0x09ea, // XK_lowrightcorner
+    0x251c: 0x09f4, // XK_leftt
+    0x2524: 0x09f5, // XK_rightt
+    0x252c: 0x09f7, // XK_topt
+    0x2534: 0x09f6, // XK_bott
+    0x253c: 0x09ee, // XK_crossinglines
+    0x2592: 0x09e1, // XK_checkerboard
+    0x25aa: 0x0ae7, // XK_enfilledsqbullet
+    0x25ab: 0x0ae1, // XK_enopensquarebullet
+    0x25ac: 0x0adb, // XK_filledrectbullet
+    0x25ad: 0x0ae2, // XK_openrectbullet
+    0x25ae: 0x0adf, // XK_emfilledrect
+    0x25af: 0x0acf, // XK_emopenrectangle
+    0x25b2: 0x0ae8, // XK_filledtribulletup
+    0x25b3: 0x0ae3, // XK_opentribulletup
+    0x25b6: 0x0add, // XK_filledrighttribullet
+    0x25b7: 0x0acd, // XK_rightopentriangle
+    0x25bc: 0x0ae9, // XK_filledtribulletdown
+    0x25bd: 0x0ae4, // XK_opentribulletdown
+    0x25c0: 0x0adc, // XK_filledlefttribullet
+    0x25c1: 0x0acc, // XK_leftopentriangle
+    0x25c6: 0x09e0, // XK_soliddiamond
+    0x25cb: 0x0ace, // XK_emopencircle
+    0x25cf: 0x0ade, // XK_emfilledcircle
+    0x25e6: 0x0ae0, // XK_enopencircbullet
+    0x2606: 0x0ae5, // XK_openstar
+    0x260e: 0x0af9, // XK_telephone
+    0x2613: 0x0aca, // XK_signaturemark
+    0x261c: 0x0aea, // XK_leftpointer
+    0x261e: 0x0aeb, // XK_rightpointer
+    0x2640: 0x0af8, // XK_femalesymbol
+    0x2642: 0x0af7, // XK_malesymbol
+    0x2663: 0x0aec, // XK_club
+    0x2665: 0x0aee, // XK_heart
+    0x2666: 0x0aed, // XK_diamond
+    0x266d: 0x0af6, // XK_musicalflat
+    0x266f: 0x0af5, // XK_musicalsharp
+    0x2713: 0x0af3, // XK_checkmark
+    0x2717: 0x0af4, // XK_ballotcross
+    0x271d: 0x0ad9, // XK_latincross
+    0x2720: 0x0af0, // XK_maltesecross
+    0x27e8: 0x0abc, // XK_leftanglebracket
+    0x27e9: 0x0abe, // XK_rightanglebracket
+    0x3001: 0x04a4, // XK_kana_comma
+    0x3002: 0x04a1, // XK_kana_fullstop
+    0x300c: 0x04a2, // XK_kana_openingbracket
+    0x300d: 0x04a3, // XK_kana_closingbracket
+    0x309b: 0x04de, // XK_voicedsound
+    0x309c: 0x04df, // XK_semivoicedsound
+    0x30a1: 0x04a7, // XK_kana_a
+    0x30a2: 0x04b1, // XK_kana_A
+    0x30a3: 0x04a8, // XK_kana_i
+    0x30a4: 0x04b2, // XK_kana_I
+    0x30a5: 0x04a9, // XK_kana_u
+    0x30a6: 0x04b3, // XK_kana_U
+    0x30a7: 0x04aa, // XK_kana_e
+    0x30a8: 0x04b4, // XK_kana_E
+    0x30a9: 0x04ab, // XK_kana_o
+    0x30aa: 0x04b5, // XK_kana_O
+    0x30ab: 0x04b6, // XK_kana_KA
+    0x30ad: 0x04b7, // XK_kana_KI
+    0x30af: 0x04b8, // XK_kana_KU
+    0x30b1: 0x04b9, // XK_kana_KE
+    0x30b3: 0x04ba, // XK_kana_KO
+    0x30b5: 0x04bb, // XK_kana_SA
+    0x30b7: 0x04bc, // XK_kana_SHI
+    0x30b9: 0x04bd, // XK_kana_SU
+    0x30bb: 0x04be, // XK_kana_SE
+    0x30bd: 0x04bf, // XK_kana_SO
+    0x30bf: 0x04c0, // XK_kana_TA
+    0x30c1: 0x04c1, // XK_kana_CHI
+    0x30c3: 0x04af, // XK_kana_tsu
+    0x30c4: 0x04c2, // XK_kana_TSU
+    0x30c6: 0x04c3, // XK_kana_TE
+    0x30c8: 0x04c4, // XK_kana_TO
+    0x30ca: 0x04c5, // XK_kana_NA
+    0x30cb: 0x04c6, // XK_kana_NI
+    0x30cc: 0x04c7, // XK_kana_NU
+    0x30cd: 0x04c8, // XK_kana_NE
+    0x30ce: 0x04c9, // XK_kana_NO
+    0x30cf: 0x04ca, // XK_kana_HA
+    0x30d2: 0x04cb, // XK_kana_HI
+    0x30d5: 0x04cc, // XK_kana_FU
+    0x30d8: 0x04cd, // XK_kana_HE
+    0x30db: 0x04ce, // XK_kana_HO
+    0x30de: 0x04cf, // XK_kana_MA
+    0x30df: 0x04d0, // XK_kana_MI
+    0x30e0: 0x04d1, // XK_kana_MU
+    0x30e1: 0x04d2, // XK_kana_ME
+    0x30e2: 0x04d3, // XK_kana_MO
+    0x30e3: 0x04ac, // XK_kana_ya
+    0x30e4: 0x04d4, // XK_kana_YA
+    0x30e5: 0x04ad, // XK_kana_yu
+    0x30e6: 0x04d5, // XK_kana_YU
+    0x30e7: 0x04ae, // XK_kana_yo
+    0x30e8: 0x04d6, // XK_kana_YO
+    0x30e9: 0x04d7, // XK_kana_RA
+    0x30ea: 0x04d8, // XK_kana_RI
+    0x30eb: 0x04d9, // XK_kana_RU
+    0x30ec: 0x04da, // XK_kana_RE
+    0x30ed: 0x04db, // XK_kana_RO
+    0x30ef: 0x04dc, // XK_kana_WA
+    0x30f2: 0x04a6, // XK_kana_WO
+    0x30f3: 0x04dd, // XK_kana_N
+    0x30fb: 0x04a5, // XK_kana_conjunctive
+    0x30fc: 0x04b0, // XK_prolongedsound
+};
+
+export default {
+    lookup(u) {
+        // Latin-1 is one-to-one mapping
+        if ((u >= 0x20) && (u <= 0xff)) {
+            return u;
+        }
+
+        // Lookup table (fairly random)
+        const keysym = codepoints[u];
+        if (keysym !== undefined) {
+            return keysym;
+        }
+
+        // General mapping as final fallback
+        return 0x01000000 | u;
+    },
+};

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/input/util.js

@@ -0,0 +1,191 @@
+import KeyTable from "./keysym.js";
+import keysyms from "./keysymdef.js";
+import vkeys from "./vkeys.js";
+import fixedkeys from "./fixedkeys.js";
+import DOMKeyTable from "./domkeytable.js";
+import * as browser from "../util/browser.js";
+
+// Get 'KeyboardEvent.code', handling legacy browsers
+export function getKeycode(evt) {
+    // Are we getting proper key identifiers?
+    // (unfortunately Firefox and Chrome are crappy here and gives
+    // us an empty string on some platforms, rather than leaving it
+    // undefined)
+    if (evt.code) {
+        // Mozilla isn't fully in sync with the spec yet
+        switch (evt.code) {
+            case 'OSLeft': return 'MetaLeft';
+            case 'OSRight': return 'MetaRight';
+        }
+
+        return evt.code;
+    }
+
+    // The de-facto standard is to use Windows Virtual-Key codes
+    // in the 'keyCode' field for non-printable characters
+    if (evt.keyCode in vkeys) {
+        let code = vkeys[evt.keyCode];
+
+        // macOS has messed up this code for some reason
+        if (browser.isMac() && (code === 'ContextMenu')) {
+            code = 'MetaRight';
+        }
+
+        // The keyCode doesn't distinguish between left and right
+        // for the standard modifiers
+        if (evt.location === 2) {
+            switch (code) {
+                case 'ShiftLeft': return 'ShiftRight';
+                case 'ControlLeft': return 'ControlRight';
+                case 'AltLeft': return 'AltRight';
+            }
+        }
+
+        // Nor a bunch of the numpad keys
+        if (evt.location === 3) {
+            switch (code) {
+                case 'Delete': return 'NumpadDecimal';
+                case 'Insert': return 'Numpad0';
+                case 'End': return 'Numpad1';
+                case 'ArrowDown': return 'Numpad2';
+                case 'PageDown': return 'Numpad3';
+                case 'ArrowLeft': return 'Numpad4';
+                case 'ArrowRight': return 'Numpad6';
+                case 'Home': return 'Numpad7';
+                case 'ArrowUp': return 'Numpad8';
+                case 'PageUp': return 'Numpad9';
+                case 'Enter': return 'NumpadEnter';
+            }
+        }
+
+        return code;
+    }
+
+    return 'Unidentified';
+}
+
+// Get 'KeyboardEvent.key', handling legacy browsers
+export function getKey(evt) {
+    // Are we getting a proper key value?
+    if ((evt.key !== undefined) && (evt.key !== 'Unidentified')) {
+        // Mozilla isn't fully in sync with the spec yet
+        switch (evt.key) {
+            case 'OS': return 'Meta';
+            case 'LaunchMyComputer': return 'LaunchApplication1';
+            case 'LaunchCalculator': return 'LaunchApplication2';
+        }
+
+        // iOS leaks some OS names
+        switch (evt.key) {
+            case 'UIKeyInputUpArrow': return 'ArrowUp';
+            case 'UIKeyInputDownArrow': return 'ArrowDown';
+            case 'UIKeyInputLeftArrow': return 'ArrowLeft';
+            case 'UIKeyInputRightArrow': return 'ArrowRight';
+            case 'UIKeyInputEscape': return 'Escape';
+        }
+
+        // Broken behaviour in Chrome
+        if ((evt.key === '\x00') && (evt.code === 'NumpadDecimal')) {
+            return 'Delete';
+        }
+
+        return evt.key;
+    }
+
+    // Try to deduce it based on the physical key
+    const code = getKeycode(evt);
+    if (code in fixedkeys) {
+        return fixedkeys[code];
+    }
+
+    // If that failed, then see if we have a printable character
+    if (evt.charCode) {
+        return String.fromCharCode(evt.charCode);
+    }
+
+    // At this point we have nothing left to go on
+    return 'Unidentified';
+}
+
+// Get the most reliable keysym value we can get from a key event
+export function getKeysym(evt) {
+    const key = getKey(evt);
+
+    if (key === 'Unidentified') {
+        return null;
+    }
+
+    // First look up special keys
+    if (key in DOMKeyTable) {
+        let location = evt.location;
+
+        // Safari screws up location for the right cmd key
+        if ((key === 'Meta') && (location === 0)) {
+            location = 2;
+        }
+
+        // And for Clear
+        if ((key === 'Clear') && (location === 3)) {
+            let code = getKeycode(evt);
+            if (code === 'NumLock') {
+                location = 0;
+            }
+        }
+
+        if ((location === undefined) || (location > 3)) {
+            location = 0;
+        }
+
+        // The original Meta key now gets confused with the Windows key
+        // https://bugs.chromium.org/p/chromium/issues/detail?id=1020141
+        // https://bugzilla.mozilla.org/show_bug.cgi?id=1232918
+        if (key === 'Meta') {
+            let code = getKeycode(evt);
+            if (code === 'AltLeft') {
+                return KeyTable.XK_Meta_L;
+            } else if (code === 'AltRight') {
+                return KeyTable.XK_Meta_R;
+            }
+        }
+
+        // macOS has Clear instead of NumLock, but the remote system is
+        // probably not macOS, so lying here is probably best...
+        if (key === 'Clear') {
+            let code = getKeycode(evt);
+            if (code === 'NumLock') {
+                return KeyTable.XK_Num_Lock;
+            }
+        }
+
+        // Windows sends alternating symbols for some keys when using a
+        // Japanese layout. We have no way of synchronising with the IM
+        // running on the remote system, so we send some combined keysym
+        // instead and hope for the best.
+        if (browser.isWindows()) {
+            switch (key) {
+                case 'Zenkaku':
+                case 'Hankaku':
+                    return KeyTable.XK_Zenkaku_Hankaku;
+                case 'Romaji':
+                case 'KanaMode':
+                    return KeyTable.XK_Romaji;
+            }
+        }
+
+        return DOMKeyTable[key][location];
+    }
+
+    // Now we need to look at the Unicode symbol instead
+
+    // Special key? (FIXME: Should have been caught earlier)
+    if (key.length !== 1) {
+        return null;
+    }
+
+    const codepoint = key.charCodeAt();
+    if (codepoint) {
+        return keysyms.lookup(codepoint);
+    }
+
+    return null;
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/input/vkeys.js

@@ -0,0 +1,116 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2018 The noVNC authors
+ * Licensed under MPL 2.0 or any later version (see LICENSE.txt)
+ */
+
+/*
+ * Mapping between Microsoft® Windows® Virtual-Key codes and
+ * HTML key codes.
+ */
+
+export default {
+    0x08: 'Backspace',
+    0x09: 'Tab',
+    0x0a: 'NumpadClear',
+    0x0d: 'Enter',
+    0x10: 'ShiftLeft',
+    0x11: 'ControlLeft',
+    0x12: 'AltLeft',
+    0x13: 'Pause',
+    0x14: 'CapsLock',
+    0x15: 'Lang1',
+    0x19: 'Lang2',
+    0x1b: 'Escape',
+    0x1c: 'Convert',
+    0x1d: 'NonConvert',
+    0x20: 'Space',
+    0x21: 'PageUp',
+    0x22: 'PageDown',
+    0x23: 'End',
+    0x24: 'Home',
+    0x25: 'ArrowLeft',
+    0x26: 'ArrowUp',
+    0x27: 'ArrowRight',
+    0x28: 'ArrowDown',
+    0x29: 'Select',
+    0x2c: 'PrintScreen',
+    0x2d: 'Insert',
+    0x2e: 'Delete',
+    0x2f: 'Help',
+    0x30: 'Digit0',
+    0x31: 'Digit1',
+    0x32: 'Digit2',
+    0x33: 'Digit3',
+    0x34: 'Digit4',
+    0x35: 'Digit5',
+    0x36: 'Digit6',
+    0x37: 'Digit7',
+    0x38: 'Digit8',
+    0x39: 'Digit9',
+    0x5b: 'MetaLeft',
+    0x5c: 'MetaRight',
+    0x5d: 'ContextMenu',
+    0x5f: 'Sleep',
+    0x60: 'Numpad0',
+    0x61: 'Numpad1',
+    0x62: 'Numpad2',
+    0x63: 'Numpad3',
+    0x64: 'Numpad4',
+    0x65: 'Numpad5',
+    0x66: 'Numpad6',
+    0x67: 'Numpad7',
+    0x68: 'Numpad8',
+    0x69: 'Numpad9',
+    0x6a: 'NumpadMultiply',
+    0x6b: 'NumpadAdd',
+    0x6c: 'NumpadDecimal',
+    0x6d: 'NumpadSubtract',
+    0x6e: 'NumpadDecimal', // Duplicate, because buggy on Windows
+    0x6f: 'NumpadDivide',
+    0x70: 'F1',
+    0x71: 'F2',
+    0x72: 'F3',
+    0x73: 'F4',
+    0x74: 'F5',
+    0x75: 'F6',
+    0x76: 'F7',
+    0x77: 'F8',
+    0x78: 'F9',
+    0x79: 'F10',
+    0x7a: 'F11',
+    0x7b: 'F12',
+    0x7c: 'F13',
+    0x7d: 'F14',
+    0x7e: 'F15',
+    0x7f: 'F16',
+    0x80: 'F17',
+    0x81: 'F18',
+    0x82: 'F19',
+    0x83: 'F20',
+    0x84: 'F21',
+    0x85: 'F22',
+    0x86: 'F23',
+    0x87: 'F24',
+    0x90: 'NumLock',
+    0x91: 'ScrollLock',
+    0xa6: 'BrowserBack',
+    0xa7: 'BrowserForward',
+    0xa8: 'BrowserRefresh',
+    0xa9: 'BrowserStop',
+    0xaa: 'BrowserSearch',
+    0xab: 'BrowserFavorites',
+    0xac: 'BrowserHome',
+    0xad: 'AudioVolumeMute',
+    0xae: 'AudioVolumeDown',
+    0xaf: 'AudioVolumeUp',
+    0xb0: 'MediaTrackNext',
+    0xb1: 'MediaTrackPrevious',
+    0xb2: 'MediaStop',
+    0xb3: 'MediaPlayPause',
+    0xb4: 'LaunchMail',
+    0xb5: 'MediaSelect',
+    0xb6: 'LaunchApp1',
+    0xb7: 'LaunchApp2',
+    0xe1: 'AltRight', // Only when it is AltGraph
+};

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/input/xtscancodes.js

@@ -0,0 +1,173 @@
+/*
+ * This file is auto-generated from keymaps.csv
+ * Database checksum sha256(76d68c10e97d37fe2ea459e210125ae41796253fb217e900bf2983ade13a7920)
+ * To re-generate, run:
+ *   keymap-gen code-map --lang=js keymaps.csv html atset1
+*/
+export default {
+  "Again": 0xe005, /* html:Again (Again) -> linux:129 (KEY_AGAIN) -> atset1:57349 */
+  "AltLeft": 0x38, /* html:AltLeft (AltLeft) -> linux:56 (KEY_LEFTALT) -> atset1:56 */
+  "AltRight": 0xe038, /* html:AltRight (AltRight) -> linux:100 (KEY_RIGHTALT) -> atset1:57400 */
+  "ArrowDown": 0xe050, /* html:ArrowDown (ArrowDown) -> linux:108 (KEY_DOWN) -> atset1:57424 */
+  "ArrowLeft": 0xe04b, /* html:ArrowLeft (ArrowLeft) -> linux:105 (KEY_LEFT) -> atset1:57419 */
+  "ArrowRight": 0xe04d, /* html:ArrowRight (ArrowRight) -> linux:106 (KEY_RIGHT) -> atset1:57421 */
+  "ArrowUp": 0xe048, /* html:ArrowUp (ArrowUp) -> linux:103 (KEY_UP) -> atset1:57416 */
+  "AudioVolumeDown": 0xe02e, /* html:AudioVolumeDown (AudioVolumeDown) -> linux:114 (KEY_VOLUMEDOWN) -> atset1:57390 */
+  "AudioVolumeMute": 0xe020, /* html:AudioVolumeMute (AudioVolumeMute) -> linux:113 (KEY_MUTE) -> atset1:57376 */
+  "AudioVolumeUp": 0xe030, /* html:AudioVolumeUp (AudioVolumeUp) -> linux:115 (KEY_VOLUMEUP) -> atset1:57392 */
+  "Backquote": 0x29, /* html:Backquote (Backquote) -> linux:41 (KEY_GRAVE) -> atset1:41 */
+  "Backslash": 0x2b, /* html:Backslash (Backslash) -> linux:43 (KEY_BACKSLASH) -> atset1:43 */
+  "Backspace": 0xe, /* html:Backspace (Backspace) -> linux:14 (KEY_BACKSPACE) -> atset1:14 */
+  "BracketLeft": 0x1a, /* html:BracketLeft (BracketLeft) -> linux:26 (KEY_LEFTBRACE) -> atset1:26 */
+  "BracketRight": 0x1b, /* html:BracketRight (BracketRight) -> linux:27 (KEY_RIGHTBRACE) -> atset1:27 */
+  "BrowserBack": 0xe06a, /* html:BrowserBack (BrowserBack) -> linux:158 (KEY_BACK) -> atset1:57450 */
+  "BrowserFavorites": 0xe066, /* html:BrowserFavorites (BrowserFavorites) -> linux:156 (KEY_BOOKMARKS) -> atset1:57446 */
+  "BrowserForward": 0xe069, /* html:BrowserForward (BrowserForward) -> linux:159 (KEY_FORWARD) -> atset1:57449 */
+  "BrowserHome": 0xe032, /* html:BrowserHome (BrowserHome) -> linux:172 (KEY_HOMEPAGE) -> atset1:57394 */
+  "BrowserRefresh": 0xe067, /* html:BrowserRefresh (BrowserRefresh) -> linux:173 (KEY_REFRESH) -> atset1:57447 */
+  "BrowserSearch": 0xe065, /* html:BrowserSearch (BrowserSearch) -> linux:217 (KEY_SEARCH) -> atset1:57445 */
+  "BrowserStop": 0xe068, /* html:BrowserStop (BrowserStop) -> linux:128 (KEY_STOP) -> atset1:57448 */
+  "CapsLock": 0x3a, /* html:CapsLock (CapsLock) -> linux:58 (KEY_CAPSLOCK) -> atset1:58 */
+  "Comma": 0x33, /* html:Comma (Comma) -> linux:51 (KEY_COMMA) -> atset1:51 */
+  "ContextMenu": 0xe05d, /* html:ContextMenu (ContextMenu) -> linux:127 (KEY_COMPOSE) -> atset1:57437 */
+  "ControlLeft": 0x1d, /* html:ControlLeft (ControlLeft) -> linux:29 (KEY_LEFTCTRL) -> atset1:29 */
+  "ControlRight": 0xe01d, /* html:ControlRight (ControlRight) -> linux:97 (KEY_RIGHTCTRL) -> atset1:57373 */
+  "Convert": 0x79, /* html:Convert (Convert) -> linux:92 (KEY_HENKAN) -> atset1:121 */
+  "Copy": 0xe078, /* html:Copy (Copy) -> linux:133 (KEY_COPY) -> atset1:57464 */
+  "Cut": 0xe03c, /* html:Cut (Cut) -> linux:137 (KEY_CUT) -> atset1:57404 */
+  "Delete": 0xe053, /* html:Delete (Delete) -> linux:111 (KEY_DELETE) -> atset1:57427 */
+  "Digit0": 0xb, /* html:Digit0 (Digit0) -> linux:11 (KEY_0) -> atset1:11 */
+  "Digit1": 0x2, /* html:Digit1 (Digit1) -> linux:2 (KEY_1) -> atset1:2 */
+  "Digit2": 0x3, /* html:Digit2 (Digit2) -> linux:3 (KEY_2) -> atset1:3 */
+  "Digit3": 0x4, /* html:Digit3 (Digit3) -> linux:4 (KEY_3) -> atset1:4 */
+  "Digit4": 0x5, /* html:Digit4 (Digit4) -> linux:5 (KEY_4) -> atset1:5 */
+  "Digit5": 0x6, /* html:Digit5 (Digit5) -> linux:6 (KEY_5) -> atset1:6 */
+  "Digit6": 0x7, /* html:Digit6 (Digit6) -> linux:7 (KEY_6) -> atset1:7 */
+  "Digit7": 0x8, /* html:Digit7 (Digit7) -> linux:8 (KEY_7) -> atset1:8 */
+  "Digit8": 0x9, /* html:Digit8 (Digit8) -> linux:9 (KEY_8) -> atset1:9 */
+  "Digit9": 0xa, /* html:Digit9 (Digit9) -> linux:10 (KEY_9) -> atset1:10 */
+  "Eject": 0xe07d, /* html:Eject (Eject) -> linux:162 (KEY_EJECTCLOSECD) -> atset1:57469 */
+  "End": 0xe04f, /* html:End (End) -> linux:107 (KEY_END) -> atset1:57423 */
+  "Enter": 0x1c, /* html:Enter (Enter) -> linux:28 (KEY_ENTER) -> atset1:28 */
+  "Equal": 0xd, /* html:Equal (Equal) -> linux:13 (KEY_EQUAL) -> atset1:13 */
+  "Escape": 0x1, /* html:Escape (Escape) -> linux:1 (KEY_ESC) -> atset1:1 */
+  "F1": 0x3b, /* html:F1 (F1) -> linux:59 (KEY_F1) -> atset1:59 */
+  "F10": 0x44, /* html:F10 (F10) -> linux:68 (KEY_F10) -> atset1:68 */
+  "F11": 0x57, /* html:F11 (F11) -> linux:87 (KEY_F11) -> atset1:87 */
+  "F12": 0x58, /* html:F12 (F12) -> linux:88 (KEY_F12) -> atset1:88 */
+  "F13": 0x5d, /* html:F13 (F13) -> linux:183 (KEY_F13) -> atset1:93 */
+  "F14": 0x5e, /* html:F14 (F14) -> linux:184 (KEY_F14) -> atset1:94 */
+  "F15": 0x5f, /* html:F15 (F15) -> linux:185 (KEY_F15) -> atset1:95 */
+  "F16": 0x55, /* html:F16 (F16) -> linux:186 (KEY_F16) -> atset1:85 */
+  "F17": 0xe003, /* html:F17 (F17) -> linux:187 (KEY_F17) -> atset1:57347 */
+  "F18": 0xe077, /* html:F18 (F18) -> linux:188 (KEY_F18) -> atset1:57463 */
+  "F19": 0xe004, /* html:F19 (F19) -> linux:189 (KEY_F19) -> atset1:57348 */
+  "F2": 0x3c, /* html:F2 (F2) -> linux:60 (KEY_F2) -> atset1:60 */
+  "F20": 0x5a, /* html:F20 (F20) -> linux:190 (KEY_F20) -> atset1:90 */
+  "F21": 0x74, /* html:F21 (F21) -> linux:191 (KEY_F21) -> atset1:116 */
+  "F22": 0xe079, /* html:F22 (F22) -> linux:192 (KEY_F22) -> atset1:57465 */
+  "F23": 0x6d, /* html:F23 (F23) -> linux:193 (KEY_F23) -> atset1:109 */
+  "F24": 0x6f, /* html:F24 (F24) -> linux:194 (KEY_F24) -> atset1:111 */
+  "F3": 0x3d, /* html:F3 (F3) -> linux:61 (KEY_F3) -> atset1:61 */
+  "F4": 0x3e, /* html:F4 (F4) -> linux:62 (KEY_F4) -> atset1:62 */
+  "F5": 0x3f, /* html:F5 (F5) -> linux:63 (KEY_F5) -> atset1:63 */
+  "F6": 0x40, /* html:F6 (F6) -> linux:64 (KEY_F6) -> atset1:64 */
+  "F7": 0x41, /* html:F7 (F7) -> linux:65 (KEY_F7) -> atset1:65 */
+  "F8": 0x42, /* html:F8 (F8) -> linux:66 (KEY_F8) -> atset1:66 */
+  "F9": 0x43, /* html:F9 (F9) -> linux:67 (KEY_F9) -> atset1:67 */
+  "Find": 0xe041, /* html:Find (Find) -> linux:136 (KEY_FIND) -> atset1:57409 */
+  "Help": 0xe075, /* html:Help (Help) -> linux:138 (KEY_HELP) -> atset1:57461 */
+  "Hiragana": 0x77, /* html:Hiragana (Lang4) -> linux:91 (KEY_HIRAGANA) -> atset1:119 */
+  "Home": 0xe047, /* html:Home (Home) -> linux:102 (KEY_HOME) -> atset1:57415 */
+  "Insert": 0xe052, /* html:Insert (Insert) -> linux:110 (KEY_INSERT) -> atset1:57426 */
+  "IntlBackslash": 0x56, /* html:IntlBackslash (IntlBackslash) -> linux:86 (KEY_102ND) -> atset1:86 */
+  "IntlRo": 0x73, /* html:IntlRo (IntlRo) -> linux:89 (KEY_RO) -> atset1:115 */
+  "IntlYen": 0x7d, /* html:IntlYen (IntlYen) -> linux:124 (KEY_YEN) -> atset1:125 */
+  "KanaMode": 0x70, /* html:KanaMode (KanaMode) -> linux:93 (KEY_KATAKANAHIRAGANA) -> atset1:112 */
+  "Katakana": 0x78, /* html:Katakana (Lang3) -> linux:90 (KEY_KATAKANA) -> atset1:120 */
+  "KeyA": 0x1e, /* html:KeyA (KeyA) -> linux:30 (KEY_A) -> atset1:30 */
+  "KeyB": 0x30, /* html:KeyB (KeyB) -> linux:48 (KEY_B) -> atset1:48 */
+  "KeyC": 0x2e, /* html:KeyC (KeyC) -> linux:46 (KEY_C) -> atset1:46 */
+  "KeyD": 0x20, /* html:KeyD (KeyD) -> linux:32 (KEY_D) -> atset1:32 */
+  "KeyE": 0x12, /* html:KeyE (KeyE) -> linux:18 (KEY_E) -> atset1:18 */
+  "KeyF": 0x21, /* html:KeyF (KeyF) -> linux:33 (KEY_F) -> atset1:33 */
+  "KeyG": 0x22, /* html:KeyG (KeyG) -> linux:34 (KEY_G) -> atset1:34 */
+  "KeyH": 0x23, /* html:KeyH (KeyH) -> linux:35 (KEY_H) -> atset1:35 */
+  "KeyI": 0x17, /* html:KeyI (KeyI) -> linux:23 (KEY_I) -> atset1:23 */
+  "KeyJ": 0x24, /* html:KeyJ (KeyJ) -> linux:36 (KEY_J) -> atset1:36 */
+  "KeyK": 0x25, /* html:KeyK (KeyK) -> linux:37 (KEY_K) -> atset1:37 */
+  "KeyL": 0x26, /* html:KeyL (KeyL) -> linux:38 (KEY_L) -> atset1:38 */
+  "KeyM": 0x32, /* html:KeyM (KeyM) -> linux:50 (KEY_M) -> atset1:50 */
+  "KeyN": 0x31, /* html:KeyN (KeyN) -> linux:49 (KEY_N) -> atset1:49 */
+  "KeyO": 0x18, /* html:KeyO (KeyO) -> linux:24 (KEY_O) -> atset1:24 */
+  "KeyP": 0x19, /* html:KeyP (KeyP) -> linux:25 (KEY_P) -> atset1:25 */
+  "KeyQ": 0x10, /* html:KeyQ (KeyQ) -> linux:16 (KEY_Q) -> atset1:16 */
+  "KeyR": 0x13, /* html:KeyR (KeyR) -> linux:19 (KEY_R) -> atset1:19 */
+  "KeyS": 0x1f, /* html:KeyS (KeyS) -> linux:31 (KEY_S) -> atset1:31 */
+  "KeyT": 0x14, /* html:KeyT (KeyT) -> linux:20 (KEY_T) -> atset1:20 */
+  "KeyU": 0x16, /* html:KeyU (KeyU) -> linux:22 (KEY_U) -> atset1:22 */
+  "KeyV": 0x2f, /* html:KeyV (KeyV) -> linux:47 (KEY_V) -> atset1:47 */
+  "KeyW": 0x11, /* html:KeyW (KeyW) -> linux:17 (KEY_W) -> atset1:17 */
+  "KeyX": 0x2d, /* html:KeyX (KeyX) -> linux:45 (KEY_X) -> atset1:45 */
+  "KeyY": 0x15, /* html:KeyY (KeyY) -> linux:21 (KEY_Y) -> atset1:21 */
+  "KeyZ": 0x2c, /* html:KeyZ (KeyZ) -> linux:44 (KEY_Z) -> atset1:44 */
+  "Lang1": 0x72, /* html:Lang1 (Lang1) -> linux:122 (KEY_HANGEUL) -> atset1:114 */
+  "Lang2": 0x71, /* html:Lang2 (Lang2) -> linux:123 (KEY_HANJA) -> atset1:113 */
+  "Lang3": 0x78, /* html:Lang3 (Lang3) -> linux:90 (KEY_KATAKANA) -> atset1:120 */
+  "Lang4": 0x77, /* html:Lang4 (Lang4) -> linux:91 (KEY_HIRAGANA) -> atset1:119 */
+  "Lang5": 0x76, /* html:Lang5 (Lang5) -> linux:85 (KEY_ZENKAKUHANKAKU) -> atset1:118 */
+  "LaunchApp1": 0xe06b, /* html:LaunchApp1 (LaunchApp1) -> linux:157 (KEY_COMPUTER) -> atset1:57451 */
+  "LaunchApp2": 0xe021, /* html:LaunchApp2 (LaunchApp2) -> linux:140 (KEY_CALC) -> atset1:57377 */
+  "LaunchMail": 0xe06c, /* html:LaunchMail (LaunchMail) -> linux:155 (KEY_MAIL) -> atset1:57452 */
+  "MediaPlayPause": 0xe022, /* html:MediaPlayPause (MediaPlayPause) -> linux:164 (KEY_PLAYPAUSE) -> atset1:57378 */
+  "MediaSelect": 0xe06d, /* html:MediaSelect (MediaSelect) -> linux:226 (KEY_MEDIA) -> atset1:57453 */
+  "MediaStop": 0xe024, /* html:MediaStop (MediaStop) -> linux:166 (KEY_STOPCD) -> atset1:57380 */
+  "MediaTrackNext": 0xe019, /* html:MediaTrackNext (MediaTrackNext) -> linux:163 (KEY_NEXTSONG) -> atset1:57369 */
+  "MediaTrackPrevious": 0xe010, /* html:MediaTrackPrevious (MediaTrackPrevious) -> linux:165 (KEY_PREVIOUSSONG) -> atset1:57360 */
+  "MetaLeft": 0xe05b, /* html:MetaLeft (MetaLeft) -> linux:125 (KEY_LEFTMETA) -> atset1:57435 */
+  "MetaRight": 0xe05c, /* html:MetaRight (MetaRight) -> linux:126 (KEY_RIGHTMETA) -> atset1:57436 */
+  "Minus": 0xc, /* html:Minus (Minus) -> linux:12 (KEY_MINUS) -> atset1:12 */
+  "NonConvert": 0x7b, /* html:NonConvert (NonConvert) -> linux:94 (KEY_MUHENKAN) -> atset1:123 */
+  "NumLock": 0x45, /* html:NumLock (NumLock) -> linux:69 (KEY_NUMLOCK) -> atset1:69 */
+  "Numpad0": 0x52, /* html:Numpad0 (Numpad0) -> linux:82 (KEY_KP0) -> atset1:82 */
+  "Numpad1": 0x4f, /* html:Numpad1 (Numpad1) -> linux:79 (KEY_KP1) -> atset1:79 */
+  "Numpad2": 0x50, /* html:Numpad2 (Numpad2) -> linux:80 (KEY_KP2) -> atset1:80 */
+  "Numpad3": 0x51, /* html:Numpad3 (Numpad3) -> linux:81 (KEY_KP3) -> atset1:81 */
+  "Numpad4": 0x4b, /* html:Numpad4 (Numpad4) -> linux:75 (KEY_KP4) -> atset1:75 */
+  "Numpad5": 0x4c, /* html:Numpad5 (Numpad5) -> linux:76 (KEY_KP5) -> atset1:76 */
+  "Numpad6": 0x4d, /* html:Numpad6 (Numpad6) -> linux:77 (KEY_KP6) -> atset1:77 */
+  "Numpad7": 0x47, /* html:Numpad7 (Numpad7) -> linux:71 (KEY_KP7) -> atset1:71 */
+  "Numpad8": 0x48, /* html:Numpad8 (Numpad8) -> linux:72 (KEY_KP8) -> atset1:72 */
+  "Numpad9": 0x49, /* html:Numpad9 (Numpad9) -> linux:73 (KEY_KP9) -> atset1:73 */
+  "NumpadAdd": 0x4e, /* html:NumpadAdd (NumpadAdd) -> linux:78 (KEY_KPPLUS) -> atset1:78 */
+  "NumpadComma": 0x7e, /* html:NumpadComma (NumpadComma) -> linux:121 (KEY_KPCOMMA) -> atset1:126 */
+  "NumpadDecimal": 0x53, /* html:NumpadDecimal (NumpadDecimal) -> linux:83 (KEY_KPDOT) -> atset1:83 */
+  "NumpadDivide": 0xe035, /* html:NumpadDivide (NumpadDivide) -> linux:98 (KEY_KPSLASH) -> atset1:57397 */
+  "NumpadEnter": 0xe01c, /* html:NumpadEnter (NumpadEnter) -> linux:96 (KEY_KPENTER) -> atset1:57372 */
+  "NumpadEqual": 0x59, /* html:NumpadEqual (NumpadEqual) -> linux:117 (KEY_KPEQUAL) -> atset1:89 */
+  "NumpadMultiply": 0x37, /* html:NumpadMultiply (NumpadMultiply) -> linux:55 (KEY_KPASTERISK) -> atset1:55 */
+  "NumpadParenLeft": 0xe076, /* html:NumpadParenLeft (NumpadParenLeft) -> linux:179 (KEY_KPLEFTPAREN) -> atset1:57462 */
+  "NumpadParenRight": 0xe07b, /* html:NumpadParenRight (NumpadParenRight) -> linux:180 (KEY_KPRIGHTPAREN) -> atset1:57467 */
+  "NumpadSubtract": 0x4a, /* html:NumpadSubtract (NumpadSubtract) -> linux:74 (KEY_KPMINUS) -> atset1:74 */
+  "Open": 0x64, /* html:Open (Open) -> linux:134 (KEY_OPEN) -> atset1:100 */
+  "PageDown": 0xe051, /* html:PageDown (PageDown) -> linux:109 (KEY_PAGEDOWN) -> atset1:57425 */
+  "PageUp": 0xe049, /* html:PageUp (PageUp) -> linux:104 (KEY_PAGEUP) -> atset1:57417 */
+  "Paste": 0x65, /* html:Paste (Paste) -> linux:135 (KEY_PASTE) -> atset1:101 */
+  "Pause": 0xe046, /* html:Pause (Pause) -> linux:119 (KEY_PAUSE) -> atset1:57414 */
+  "Period": 0x34, /* html:Period (Period) -> linux:52 (KEY_DOT) -> atset1:52 */
+  "Power": 0xe05e, /* html:Power (Power) -> linux:116 (KEY_POWER) -> atset1:57438 */
+  "PrintScreen": 0x54, /* html:PrintScreen (PrintScreen) -> linux:99 (KEY_SYSRQ) -> atset1:84 */
+  "Props": 0xe006, /* html:Props (Props) -> linux:130 (KEY_PROPS) -> atset1:57350 */
+  "Quote": 0x28, /* html:Quote (Quote) -> linux:40 (KEY_APOSTROPHE) -> atset1:40 */
+  "ScrollLock": 0x46, /* html:ScrollLock (ScrollLock) -> linux:70 (KEY_SCROLLLOCK) -> atset1:70 */
+  "Semicolon": 0x27, /* html:Semicolon (Semicolon) -> linux:39 (KEY_SEMICOLON) -> atset1:39 */
+  "ShiftLeft": 0x2a, /* html:ShiftLeft (ShiftLeft) -> linux:42 (KEY_LEFTSHIFT) -> atset1:42 */
+  "ShiftRight": 0x36, /* html:ShiftRight (ShiftRight) -> linux:54 (KEY_RIGHTSHIFT) -> atset1:54 */
+  "Slash": 0x35, /* html:Slash (Slash) -> linux:53 (KEY_SLASH) -> atset1:53 */
+  "Sleep": 0xe05f, /* html:Sleep (Sleep) -> linux:142 (KEY_SLEEP) -> atset1:57439 */
+  "Space": 0x39, /* html:Space (Space) -> linux:57 (KEY_SPACE) -> atset1:57 */
+  "Suspend": 0xe025, /* html:Suspend (Suspend) -> linux:205 (KEY_SUSPEND) -> atset1:57381 */
+  "Tab": 0xf, /* html:Tab (Tab) -> linux:15 (KEY_TAB) -> atset1:15 */
+  "Undo": 0xe007, /* html:Undo (Undo) -> linux:131 (KEY_UNDO) -> atset1:57351 */
+  "WakeUp": 0xe063, /* html:WakeUp (WakeUp) -> linux:143 (KEY_WAKEUP) -> atset1:57443 */
+};

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/ra2.js

@@ -0,0 +1,312 @@
+import { encodeUTF8 } from './util/strings.js';
+import EventTargetMixin from './util/eventtarget.js';
+import legacyCrypto from './crypto/crypto.js';
+
+class RA2Cipher {
+    constructor() {
+        this._cipher = null;
+        this._counter = new Uint8Array(16);
+    }
+
+    async setKey(key) {
+        this._cipher = await legacyCrypto.importKey(
+            "raw", key, { name: "AES-EAX" }, false, ["encrypt, decrypt"]);
+    }
+
+    async makeMessage(message) {
+        const ad = new Uint8Array([(message.length & 0xff00) >>> 8, message.length & 0xff]);
+        const encrypted = await legacyCrypto.encrypt({
+            name: "AES-EAX",
+            iv: this._counter,
+            additionalData: ad,
+        }, this._cipher, message);
+        for (let i = 0; i < 16 && this._counter[i]++ === 255; i++);
+        const res = new Uint8Array(message.length + 2 + 16);
+        res.set(ad);
+        res.set(encrypted, 2);
+        return res;
+    }
+
+    async receiveMessage(length, encrypted) {
+        const ad = new Uint8Array([(length & 0xff00) >>> 8, length & 0xff]);
+        const res = await legacyCrypto.decrypt({
+            name: "AES-EAX",
+            iv: this._counter,
+            additionalData: ad,
+        }, this._cipher, encrypted);
+        for (let i = 0; i < 16 && this._counter[i]++ === 255; i++);
+        return res;
+    }
+}
+
+export default class RSAAESAuthenticationState extends EventTargetMixin {
+    constructor(sock, getCredentials) {
+        super();
+        this._hasStarted = false;
+        this._checkSock = null;
+        this._checkCredentials = null;
+        this._approveServerResolve = null;
+        this._sockReject = null;
+        this._credentialsReject = null;
+        this._approveServerReject = null;
+        this._sock = sock;
+        this._getCredentials = getCredentials;
+    }
+
+    _waitSockAsync(len) {
+        return new Promise((resolve, reject) => {
+            const hasData = () => !this._sock.rQwait('RA2', len);
+            if (hasData()) {
+                resolve();
+            } else {
+                this._checkSock = () => {
+                    if (hasData()) {
+                        resolve();
+                        this._checkSock = null;
+                        this._sockReject = null;
+                    }
+                };
+                this._sockReject = reject;
+            }
+        });
+    }
+
+    _waitApproveKeyAsync() {
+        return new Promise((resolve, reject) => {
+            this._approveServerResolve = resolve;
+            this._approveServerReject = reject;
+        });
+    }
+
+    _waitCredentialsAsync(subtype) {
+        const hasCredentials = () => {
+            if (subtype === 1 && this._getCredentials().username !== undefined &&
+                this._getCredentials().password !== undefined) {
+                return true;
+            } else if (subtype === 2 && this._getCredentials().password !== undefined) {
+                return true;
+            }
+            return false;
+        };
+        return new Promise((resolve, reject) => {
+            if (hasCredentials()) {
+                resolve();
+            } else {
+                this._checkCredentials = () => {
+                    if (hasCredentials()) {
+                        resolve();
+                        this._checkCredentials = null;
+                        this._credentialsReject = null;
+                    }
+                };
+                this._credentialsReject = reject;
+            }
+        });
+    }
+
+    checkInternalEvents() {
+        if (this._checkSock !== null) {
+            this._checkSock();
+        }
+        if (this._checkCredentials !== null) {
+            this._checkCredentials();
+        }
+    }
+
+    approveServer() {
+        if (this._approveServerResolve !== null) {
+            this._approveServerResolve();
+            this._approveServerResolve = null;
+        }
+    }
+
+    disconnect() {
+        if (this._sockReject !== null) {
+            this._sockReject(new Error("disconnect normally"));
+            this._sockReject = null;
+        }
+        if (this._credentialsReject !== null) {
+            this._credentialsReject(new Error("disconnect normally"));
+            this._credentialsReject = null;
+        }
+        if (this._approveServerReject !== null) {
+            this._approveServerReject(new Error("disconnect normally"));
+            this._approveServerReject = null;
+        }
+    }
+
+    async negotiateRA2neAuthAsync() {
+        this._hasStarted = true;
+        // 1: Receive server public key
+        await this._waitSockAsync(4);
+        const serverKeyLengthBuffer = this._sock.rQpeekBytes(4);
+        const serverKeyLength = this._sock.rQshift32();
+        if (serverKeyLength < 1024) {
+            throw new Error("RA2: server public key is too short: " + serverKeyLength);
+        } else if (serverKeyLength > 8192) {
+            throw new Error("RA2: server public key is too long: " + serverKeyLength);
+        }
+        const serverKeyBytes = Math.ceil(serverKeyLength / 8);
+        await this._waitSockAsync(serverKeyBytes * 2);
+        const serverN = this._sock.rQshiftBytes(serverKeyBytes);
+        const serverE = this._sock.rQshiftBytes(serverKeyBytes);
+        const serverRSACipher = await legacyCrypto.importKey(
+            "raw", { n: serverN, e: serverE }, { name: "RSA-PKCS1-v1_5" }, false, ["encrypt"]);
+        const serverPublickey = new Uint8Array(4 + serverKeyBytes * 2);
+        serverPublickey.set(serverKeyLengthBuffer);
+        serverPublickey.set(serverN, 4);
+        serverPublickey.set(serverE, 4 + serverKeyBytes);
+
+        // verify server public key
+        let approveKey = this._waitApproveKeyAsync();
+        this.dispatchEvent(new CustomEvent("serververification", {
+            detail: { type: "RSA", publickey: serverPublickey }
+        }));
+        await approveKey;
+
+        // 2: Send client public key
+        const clientKeyLength = 2048;
+        const clientKeyBytes = Math.ceil(clientKeyLength / 8);
+        const clientRSACipher = (await legacyCrypto.generateKey({
+            name: "RSA-PKCS1-v1_5",
+            modulusLength: clientKeyLength,
+            publicExponent: new Uint8Array([1, 0, 1]),
+        }, true, ["encrypt"])).privateKey;
+        const clientExportedRSAKey = await legacyCrypto.exportKey("raw", clientRSACipher);
+        const clientN = clientExportedRSAKey.n;
+        const clientE = clientExportedRSAKey.e;
+        const clientPublicKey = new Uint8Array(4 + clientKeyBytes * 2);
+        clientPublicKey[0] = (clientKeyLength & 0xff000000) >>> 24;
+        clientPublicKey[1] = (clientKeyLength & 0xff0000) >>> 16;
+        clientPublicKey[2] = (clientKeyLength & 0xff00) >>> 8;
+        clientPublicKey[3] = clientKeyLength & 0xff;
+        clientPublicKey.set(clientN, 4);
+        clientPublicKey.set(clientE, 4 + clientKeyBytes);
+        this._sock.sQpushBytes(clientPublicKey);
+        this._sock.flush();
+
+        // 3: Send client random
+        const clientRandom = new Uint8Array(16);
+        window.crypto.getRandomValues(clientRandom);
+        const clientEncryptedRandom = await legacyCrypto.encrypt(
+            { name: "RSA-PKCS1-v1_5" }, serverRSACipher, clientRandom);
+        const clientRandomMessage = new Uint8Array(2 + serverKeyBytes);
+        clientRandomMessage[0] = (serverKeyBytes & 0xff00) >>> 8;
+        clientRandomMessage[1] = serverKeyBytes & 0xff;
+        clientRandomMessage.set(clientEncryptedRandom, 2);
+        this._sock.sQpushBytes(clientRandomMessage);
+        this._sock.flush();
+
+        // 4: Receive server random
+        await this._waitSockAsync(2);
+        if (this._sock.rQshift16() !== clientKeyBytes) {
+            throw new Error("RA2: wrong encrypted message length");
+        }
+        const serverEncryptedRandom = this._sock.rQshiftBytes(clientKeyBytes);
+        const serverRandom = await legacyCrypto.decrypt(
+            { name: "RSA-PKCS1-v1_5" }, clientRSACipher, serverEncryptedRandom);
+        if (serverRandom === null || serverRandom.length !== 16) {
+            throw new Error("RA2: corrupted server encrypted random");
+        }
+
+        // 5: Compute session keys and set ciphers
+        let clientSessionKey = new Uint8Array(32);
+        let serverSessionKey = new Uint8Array(32);
+        clientSessionKey.set(serverRandom);
+        clientSessionKey.set(clientRandom, 16);
+        serverSessionKey.set(clientRandom);
+        serverSessionKey.set(serverRandom, 16);
+        clientSessionKey = await window.crypto.subtle.digest("SHA-1", clientSessionKey);
+        clientSessionKey = new Uint8Array(clientSessionKey).slice(0, 16);
+        serverSessionKey = await window.crypto.subtle.digest("SHA-1", serverSessionKey);
+        serverSessionKey = new Uint8Array(serverSessionKey).slice(0, 16);
+        const clientCipher = new RA2Cipher();
+        await clientCipher.setKey(clientSessionKey);
+        const serverCipher = new RA2Cipher();
+        await serverCipher.setKey(serverSessionKey);
+
+        // 6: Compute and exchange hashes
+        let serverHash = new Uint8Array(8 + serverKeyBytes * 2 + clientKeyBytes * 2);
+        let clientHash = new Uint8Array(8 + serverKeyBytes * 2 + clientKeyBytes * 2);
+        serverHash.set(serverPublickey);
+        serverHash.set(clientPublicKey, 4 + serverKeyBytes * 2);
+        clientHash.set(clientPublicKey);
+        clientHash.set(serverPublickey, 4 + clientKeyBytes * 2);
+        serverHash = await window.crypto.subtle.digest("SHA-1", serverHash);
+        clientHash = await window.crypto.subtle.digest("SHA-1", clientHash);
+        serverHash = new Uint8Array(serverHash);
+        clientHash = new Uint8Array(clientHash);
+        this._sock.sQpushBytes(await clientCipher.makeMessage(clientHash));
+        this._sock.flush();
+        await this._waitSockAsync(2 + 20 + 16);
+        if (this._sock.rQshift16() !== 20) {
+            throw new Error("RA2: wrong server hash");
+        }
+        const serverHashReceived = await serverCipher.receiveMessage(
+            20, this._sock.rQshiftBytes(20 + 16));
+        if (serverHashReceived === null) {
+            throw new Error("RA2: failed to authenticate the message");
+        }
+        for (let i = 0; i < 20; i++) {
+            if (serverHashReceived[i] !== serverHash[i]) {
+                throw new Error("RA2: wrong server hash");
+            }
+        }
+
+        // 7: Receive subtype
+        await this._waitSockAsync(2 + 1 + 16);
+        if (this._sock.rQshift16() !== 1) {
+            throw new Error("RA2: wrong subtype");
+        }
+        let subtype = (await serverCipher.receiveMessage(
+            1, this._sock.rQshiftBytes(1 + 16)));
+        if (subtype === null) {
+            throw new Error("RA2: failed to authenticate the message");
+        }
+        subtype = subtype[0];
+        let waitCredentials = this._waitCredentialsAsync(subtype);
+        if (subtype === 1) {
+            if (this._getCredentials().username === undefined ||
+                this._getCredentials().password === undefined) {
+                this.dispatchEvent(new CustomEvent(
+                    "credentialsrequired",
+                    { detail: { types: ["username", "password"] } }));
+            }
+        } else if (subtype === 2) {
+            if (this._getCredentials().password === undefined) {
+                this.dispatchEvent(new CustomEvent(
+                    "credentialsrequired",
+                    { detail: { types: ["password"] } }));
+            }
+        } else {
+            throw new Error("RA2: wrong subtype");
+        }
+        await waitCredentials;
+        let username;
+        if (subtype === 1) {
+            username = encodeUTF8(this._getCredentials().username).slice(0, 255);
+        } else {
+            username = "";
+        }
+        const password = encodeUTF8(this._getCredentials().password).slice(0, 255);
+        const credentials = new Uint8Array(username.length + password.length + 2);
+        credentials[0] = username.length;
+        credentials[username.length + 1] = password.length;
+        for (let i = 0; i < username.length; i++) {
+            credentials[i + 1] = username.charCodeAt(i);
+        }
+        for (let i = 0; i < password.length; i++) {
+            credentials[username.length + 2 + i] = password.charCodeAt(i);
+        }
+        this._sock.sQpushBytes(await clientCipher.makeMessage(credentials));
+        this._sock.flush();
+    }
+
+    get hasStarted() {
+        return this._hasStarted;
+    }
+
+    set hasStarted(s) {
+        this._hasStarted = s;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/util/browser.js

@@ -0,0 +1,233 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ *
+ * Browser feature support detection
+ */
+
+import * as Log from './logging.js';
+import Base64 from '../base64.js';
+
+// Touch detection
+export let isTouchDevice = ('ontouchstart' in document.documentElement) ||
+                                 // required for Chrome debugger
+                                 (document.ontouchstart !== undefined) ||
+                                 // required for MS Surface
+                                 (navigator.maxTouchPoints > 0) ||
+                                 (navigator.msMaxTouchPoints > 0);
+window.addEventListener('touchstart', function onFirstTouch() {
+    isTouchDevice = true;
+    window.removeEventListener('touchstart', onFirstTouch, false);
+}, false);
+
+
+// The goal is to find a certain physical width, the devicePixelRatio
+// brings us a bit closer but is not optimal.
+export let dragThreshold = 10 * (window.devicePixelRatio || 1);
+
+let _supportsCursorURIs = false;
+
+try {
+    const target = document.createElement('canvas');
+    target.style.cursor = 'url("data:image/x-icon;base64,AAACAAEACAgAAAIAAgA4AQAAFgAAACgAAAAIAAAAEAAAAAEAIAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAD/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////AAAAAAAAAAAAAAAAAAAAAA==") 2 2, default';
+
+    if (target.style.cursor.indexOf("url") === 0) {
+        Log.Info("Data URI scheme cursor supported");
+        _supportsCursorURIs = true;
+    } else {
+        Log.Warn("Data URI scheme cursor not supported");
+    }
+} catch (exc) {
+    Log.Error("Data URI scheme cursor test exception: " + exc);
+}
+
+export const supportsCursorURIs = _supportsCursorURIs;
+
+let _hasScrollbarGutter = true;
+try {
+    // Create invisible container
+    const container = document.createElement('div');
+    container.style.visibility = 'hidden';
+    container.style.overflow = 'scroll'; // forcing scrollbars
+    document.body.appendChild(container);
+
+    // Create a div and place it in the container
+    const child = document.createElement('div');
+    container.appendChild(child);
+
+    // Calculate the difference between the container's full width
+    // and the child's width - the difference is the scrollbars
+    const scrollbarWidth = (container.offsetWidth - child.offsetWidth);
+
+    // Clean up
+    container.parentNode.removeChild(container);
+
+    _hasScrollbarGutter = scrollbarWidth != 0;
+} catch (exc) {
+    Log.Error("Scrollbar test exception: " + exc);
+}
+export const hasScrollbarGutter = _hasScrollbarGutter;
+
+export let supportsWebCodecsH264Decode = false;
+
+async function _checkWebCodecsH264DecodeSupport() {
+    if (!('VideoDecoder' in window)) {
+        return false;
+    }
+
+    // We'll need to make do with some placeholders here
+    const config = {
+        codec: 'avc1.42401f',
+        codedWidth: 1920,
+        codedHeight: 1080,
+        optimizeForLatency: true,
+    };
+
+    let support = await VideoDecoder.isConfigSupported(config);
+    if (!support.supported) {
+        return false;
+    }
+
+    // Firefox incorrectly reports supports for H.264 under some
+    // circumstances, so we need to actually test a real frame
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=1932392
+
+    const data = new Uint8Array(Base64.decode(
+        'AAAAAWdCwBTZnpuAgICgAAADACAAAAZB4oVNAAAAAWjJYyyAAAABBgX//4Hc' +
+        'Rem95tlIt5Ys2CDZI+7veDI2NCAtIGNvcmUgMTY0IHIzMTA4IDMxZTE5Zjkg' +
+        'LSBILjI2NC9NUEVHLTQgQVZDIGNvZGVjIC0gQ29weWxlZnQgMjAwMy0yMDIz' +
+        'IC0gaHR0cDovL3d3dy52aWRlb2xhbi5vcmcveDI2NC5odG1sIC0gb3B0aW9u' +
+        'czogY2FiYWM9MCByZWY9NSBkZWJsb2NrPTE6MDowIGFuYWx5c2U9MHgxOjB4' +
+        'MTExIG1lPWhleCBzdWJtZT04IHBzeT0xIHBzeV9yZD0xLjAwOjAuMDAgbWl4' +
+        'ZWRfcmVmPTEgbWVfcmFuZ2U9MTYgY2hyb21hX21lPTEgdHJlbGxpcz0yIDh4' +
+        'OGRjdD0wIGNxbT0wIGRlYWR6b25lPTIxLDExIGZhc3RfcHNraXA9MSBjaHJv' +
+        'bWFfcXBfb2Zmc2V0PS0yIHRocmVhZHM9MSBsb29rYWhlYWRfdGhyZWFkcz0x' +
+        'IHNsaWNlZF90aHJlYWRzPTAgbnI9MCBkZWNpbWF0ZT0xIGludGVybGFjZWQ9' +
+        'MCBibHVyYXlfY29tcGF0PTAgY29uc3RyYWluZWRfaW50cmE9MCBiZnJhbWVz' +
+        'PTAgd2VpZ2h0cD0wIGtleWludD1pbmZpbml0ZSBrZXlpbnRfbWluPTI1IHNj' +
+        'ZW5lY3V0PTQwIGludHJhX3JlZnJlc2g9MCByY19sb29rYWhlYWQ9NTAgcmM9' +
+        'YWJyIG1idHJlZT0xIGJpdHJhdGU9NDAwIHJhdGV0b2w9MS4wIHFjb21wPTAu' +
+        'NjAgcXBtaW49MCBxcG1heD02OSBxcHN0ZXA9NCBpcF9yYXRpbz0xLjQwIGFx' +
+        'PTE6MS4wMACAAAABZYiEBrxmKAAPVccAAS044AA5DRJMnkycJk4TPw=='));
+
+    let gotframe = false;
+    let error = null;
+
+    let decoder = new VideoDecoder({
+        output: (frame) => { gotframe = true; },
+        error: (e) => { error = e; },
+    });
+    let chunk = new EncodedVideoChunk({
+        timestamp: 0,
+        type: 'key',
+        data: data,
+    });
+
+    decoder.configure(config);
+    decoder.decode(chunk);
+    try {
+        await decoder.flush();
+    } catch (e) {
+        // Firefox incorrectly throws an exception here
+        // https://bugzilla.mozilla.org/show_bug.cgi?id=1932566
+        error = e;
+    }
+
+    // Firefox fails to deliver the error on Windows, so we need to
+    // check if we got a frame instead
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=1932579
+    if (!gotframe) {
+        return false;
+    }
+
+    if (error !== null) {
+        return false;
+    }
+
+    return true;
+}
+supportsWebCodecsH264Decode = await _checkWebCodecsH264DecodeSupport();
+
+/*
+ * The functions for detection of platforms and browsers below are exported
+ * but the use of these should be minimized as much as possible.
+ *
+ * It's better to use feature detection than platform detection.
+ */
+
+/* OS */
+
+export function isMac() {
+    return !!(/mac/i).exec(navigator.platform);
+}
+
+export function isWindows() {
+    return !!(/win/i).exec(navigator.platform);
+}
+
+export function isIOS() {
+    return (!!(/ipad/i).exec(navigator.platform) ||
+            !!(/iphone/i).exec(navigator.platform) ||
+            !!(/ipod/i).exec(navigator.platform));
+}
+
+export function isAndroid() {
+    /* Android sets navigator.platform to Linux :/ */
+    return !!navigator.userAgent.match('Android ');
+}
+
+export function isChromeOS() {
+    /* ChromeOS sets navigator.platform to Linux :/ */
+    return !!navigator.userAgent.match(' CrOS ');
+}
+
+/* Browser */
+
+export function isSafari() {
+    return !!navigator.userAgent.match('Safari/...') &&
+           !navigator.userAgent.match('Chrome/...') &&
+           !navigator.userAgent.match('Chromium/...') &&
+           !navigator.userAgent.match('Epiphany/...');
+}
+
+export function isFirefox() {
+    return !!navigator.userAgent.match('Firefox/...') &&
+           !navigator.userAgent.match('Seamonkey/...');
+}
+
+export function isChrome() {
+    return !!navigator.userAgent.match('Chrome/...') &&
+           !navigator.userAgent.match('Chromium/...') &&
+           !navigator.userAgent.match('Edg/...') &&
+           !navigator.userAgent.match('OPR/...');
+}
+
+export function isChromium() {
+    return !!navigator.userAgent.match('Chromium/...');
+}
+
+export function isOpera() {
+    return !!navigator.userAgent.match('OPR/...');
+}
+
+export function isEdge() {
+    return !!navigator.userAgent.match('Edg/...');
+}
+
+/* Engine */
+
+export function isGecko() {
+    return !!navigator.userAgent.match('Gecko/...');
+}
+
+export function isWebKit() {
+    return !!navigator.userAgent.match('AppleWebKit/...') &&
+           !navigator.userAgent.match('Chrome/...');
+}
+
+export function isBlink() {
+    return !!navigator.userAgent.match('Chrome/...');
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/util/cursor.js

@@ -0,0 +1,249 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 or any later version (see LICENSE.txt)
+ */
+
+import { supportsCursorURIs, isTouchDevice } from './browser.js';
+
+const useFallback = !supportsCursorURIs || isTouchDevice;
+
+export default class Cursor {
+    constructor() {
+        this._target = null;
+
+        this._canvas = document.createElement('canvas');
+
+        if (useFallback) {
+            this._canvas.style.position = 'fixed';
+            this._canvas.style.zIndex = '65535';
+            this._canvas.style.pointerEvents = 'none';
+            // Safari on iOS can select the cursor image
+            // https://bugs.webkit.org/show_bug.cgi?id=249223
+            this._canvas.style.userSelect = 'none';
+            this._canvas.style.WebkitUserSelect = 'none';
+            // Can't use "display" because of Firefox bug #1445997
+            this._canvas.style.visibility = 'hidden';
+        }
+
+        this._position = { x: 0, y: 0 };
+        this._hotSpot = { x: 0, y: 0 };
+
+        this._eventHandlers = {
+            'mouseover': this._handleMouseOver.bind(this),
+            'mouseleave': this._handleMouseLeave.bind(this),
+            'mousemove': this._handleMouseMove.bind(this),
+            'mouseup': this._handleMouseUp.bind(this),
+        };
+    }
+
+    attach(target) {
+        if (this._target) {
+            this.detach();
+        }
+
+        this._target = target;
+
+        if (useFallback) {
+            document.body.appendChild(this._canvas);
+
+            const options = { capture: true, passive: true };
+            this._target.addEventListener('mouseover', this._eventHandlers.mouseover, options);
+            this._target.addEventListener('mouseleave', this._eventHandlers.mouseleave, options);
+            this._target.addEventListener('mousemove', this._eventHandlers.mousemove, options);
+            this._target.addEventListener('mouseup', this._eventHandlers.mouseup, options);
+        }
+
+        this.clear();
+    }
+
+    detach() {
+        if (!this._target) {
+            return;
+        }
+
+        if (useFallback) {
+            const options = { capture: true, passive: true };
+            this._target.removeEventListener('mouseover', this._eventHandlers.mouseover, options);
+            this._target.removeEventListener('mouseleave', this._eventHandlers.mouseleave, options);
+            this._target.removeEventListener('mousemove', this._eventHandlers.mousemove, options);
+            this._target.removeEventListener('mouseup', this._eventHandlers.mouseup, options);
+
+            if (document.contains(this._canvas)) {
+                document.body.removeChild(this._canvas);
+            }
+        }
+
+        this._target = null;
+    }
+
+    change(rgba, hotx, hoty, w, h) {
+        if ((w === 0) || (h === 0)) {
+            this.clear();
+            return;
+        }
+
+        this._position.x = this._position.x + this._hotSpot.x - hotx;
+        this._position.y = this._position.y + this._hotSpot.y - hoty;
+        this._hotSpot.x = hotx;
+        this._hotSpot.y = hoty;
+
+        let ctx = this._canvas.getContext('2d');
+
+        this._canvas.width = w;
+        this._canvas.height = h;
+
+        let img = new ImageData(new Uint8ClampedArray(rgba), w, h);
+        ctx.clearRect(0, 0, w, h);
+        ctx.putImageData(img, 0, 0);
+
+        if (useFallback) {
+            this._updatePosition();
+        } else {
+            let url = this._canvas.toDataURL();
+            this._target.style.cursor = 'url(' + url + ')' + hotx + ' ' + hoty + ', default';
+        }
+    }
+
+    clear() {
+        this._target.style.cursor = 'none';
+        this._canvas.width = 0;
+        this._canvas.height = 0;
+        this._position.x = this._position.x + this._hotSpot.x;
+        this._position.y = this._position.y + this._hotSpot.y;
+        this._hotSpot.x = 0;
+        this._hotSpot.y = 0;
+    }
+
+    // Mouse events might be emulated, this allows
+    // moving the cursor in such cases
+    move(clientX, clientY) {
+        if (!useFallback) {
+            return;
+        }
+        // clientX/clientY are relative the _visual viewport_,
+        // but our position is relative the _layout viewport_,
+        // so try to compensate when we can
+        if (window.visualViewport) {
+            this._position.x = clientX + window.visualViewport.offsetLeft;
+            this._position.y = clientY + window.visualViewport.offsetTop;
+        } else {
+            this._position.x = clientX;
+            this._position.y = clientY;
+        }
+        this._updatePosition();
+        let target = document.elementFromPoint(clientX, clientY);
+        this._updateVisibility(target);
+    }
+
+    _handleMouseOver(event) {
+        // This event could be because we're entering the target, or
+        // moving around amongst its sub elements. Let the move handler
+        // sort things out.
+        this._handleMouseMove(event);
+    }
+
+    _handleMouseLeave(event) {
+        // Check if we should show the cursor on the element we are leaving to
+        this._updateVisibility(event.relatedTarget);
+    }
+
+    _handleMouseMove(event) {
+        this._updateVisibility(event.target);
+
+        this._position.x = event.clientX - this._hotSpot.x;
+        this._position.y = event.clientY - this._hotSpot.y;
+
+        this._updatePosition();
+    }
+
+    _handleMouseUp(event) {
+        // We might get this event because of a drag operation that
+        // moved outside of the target. Check what's under the cursor
+        // now and adjust visibility based on that.
+        let target = document.elementFromPoint(event.clientX, event.clientY);
+        this._updateVisibility(target);
+
+        // Captures end with a mouseup but we can't know the event order of
+        // mouseup vs releaseCapture.
+        //
+        // In the cases when releaseCapture comes first, the code above is
+        // enough.
+        //
+        // In the cases when the mouseup comes first, we need wait for the
+        // browser to flush all events and then check again if the cursor
+        // should be visible.
+        if (this._captureIsActive()) {
+            window.setTimeout(() => {
+                // We might have detached at this point
+                if (!this._target) {
+                    return;
+                }
+                // Refresh the target from elementFromPoint since queued events
+                // might have altered the DOM
+                target = document.elementFromPoint(event.clientX,
+                                                   event.clientY);
+                this._updateVisibility(target);
+            }, 0);
+        }
+    }
+
+    _showCursor() {
+        if (this._canvas.style.visibility === 'hidden') {
+            this._canvas.style.visibility = '';
+        }
+    }
+
+    _hideCursor() {
+        if (this._canvas.style.visibility !== 'hidden') {
+            this._canvas.style.visibility = 'hidden';
+        }
+    }
+
+    // Should we currently display the cursor?
+    // (i.e. are we over the target, or a child of the target without a
+    // different cursor set)
+    _shouldShowCursor(target) {
+        if (!target) {
+            return false;
+        }
+        // Easy case
+        if (target === this._target) {
+            return true;
+        }
+        // Other part of the DOM?
+        if (!this._target.contains(target)) {
+            return false;
+        }
+        // Has the child its own cursor?
+        // FIXME: How can we tell that a sub element has an
+        //        explicit "cursor: none;"?
+        if (window.getComputedStyle(target).cursor !== 'none') {
+            return false;
+        }
+        return true;
+    }
+
+    _updateVisibility(target) {
+        // When the cursor target has capture we want to show the cursor.
+        // So, if a capture is active - look at the captured element instead.
+        if (this._captureIsActive()) {
+            target = document.captureElement;
+        }
+        if (this._shouldShowCursor(target)) {
+            this._showCursor();
+        } else {
+            this._hideCursor();
+        }
+    }
+
+    _updatePosition() {
+        this._canvas.style.left = this._position.x + "px";
+        this._canvas.style.top = this._position.y + "px";
+    }
+
+    _captureIsActive() {
+        return document.captureElement &&
+            document.documentElement.contains(document.captureElement);
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/util/element.js

@@ -0,0 +1,32 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2020 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+/*
+ * HTML element utility functions
+ */
+
+export function clientToElement(x, y, elem) {
+    const bounds = elem.getBoundingClientRect();
+    let pos = { x: 0, y: 0 };
+    // Clip to target bounds
+    if (x < bounds.left) {
+        pos.x = 0;
+    } else if (x >= bounds.right) {
+        pos.x = bounds.width - 1;
+    } else {
+        pos.x = x - bounds.left;
+    }
+    if (y < bounds.top) {
+        pos.y = 0;
+    } else if (y >= bounds.bottom) {
+        pos.y = bounds.height - 1;
+    } else {
+        pos.y = y - bounds.top;
+    }
+    return pos;
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/util/events.js

@@ -0,0 +1,138 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2018 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+/*
+ * Cross-browser event and position routines
+ */
+
+export function getPointerEvent(e) {
+    return e.changedTouches ? e.changedTouches[0] : e.touches ? e.touches[0] : e;
+}
+
+export function stopEvent(e) {
+    e.stopPropagation();
+    e.preventDefault();
+}
+
+// Emulate Element.setCapture() when not supported
+let _captureRecursion = false;
+let _elementForUnflushedEvents = null;
+document.captureElement = null;
+function _captureProxy(e) {
+    // Recursion protection as we'll see our own event
+    if (_captureRecursion) return;
+
+    // Clone the event as we cannot dispatch an already dispatched event
+    const newEv = new e.constructor(e.type, e);
+
+    _captureRecursion = true;
+    if (document.captureElement) {
+        document.captureElement.dispatchEvent(newEv);
+    } else {
+        _elementForUnflushedEvents.dispatchEvent(newEv);
+    }
+    _captureRecursion = false;
+
+    // Avoid double events
+    e.stopPropagation();
+
+    // Respect the wishes of the redirected event handlers
+    if (newEv.defaultPrevented) {
+        e.preventDefault();
+    }
+
+    // Implicitly release the capture on button release
+    if (e.type === "mouseup") {
+        releaseCapture();
+    }
+}
+
+// Follow cursor style of target element
+function _capturedElemChanged() {
+    const proxyElem = document.getElementById("noVNC_mouse_capture_elem");
+    proxyElem.style.cursor = window.getComputedStyle(document.captureElement).cursor;
+}
+
+const _captureObserver = new MutationObserver(_capturedElemChanged);
+
+export function setCapture(target) {
+    if (target.setCapture) {
+
+        target.setCapture();
+        document.captureElement = target;
+    } else {
+        // Release any existing capture in case this method is
+        // called multiple times without coordination
+        releaseCapture();
+
+        let proxyElem = document.getElementById("noVNC_mouse_capture_elem");
+
+        if (proxyElem === null) {
+            proxyElem = document.createElement("div");
+            proxyElem.id = "noVNC_mouse_capture_elem";
+            proxyElem.style.position = "fixed";
+            proxyElem.style.top = "0px";
+            proxyElem.style.left = "0px";
+            proxyElem.style.width = "100%";
+            proxyElem.style.height = "100%";
+            proxyElem.style.zIndex = 10000;
+            proxyElem.style.display = "none";
+            document.body.appendChild(proxyElem);
+
+            // This is to make sure callers don't get confused by having
+            // our blocking element as the target
+            proxyElem.addEventListener('contextmenu', _captureProxy);
+
+            proxyElem.addEventListener('mousemove', _captureProxy);
+            proxyElem.addEventListener('mouseup', _captureProxy);
+        }
+
+        document.captureElement = target;
+
+        // Track cursor and get initial cursor
+        _captureObserver.observe(target, {attributes: true});
+        _capturedElemChanged();
+
+        proxyElem.style.display = "";
+
+        // We listen to events on window in order to keep tracking if it
+        // happens to leave the viewport
+        window.addEventListener('mousemove', _captureProxy);
+        window.addEventListener('mouseup', _captureProxy);
+    }
+}
+
+export function releaseCapture() {
+    if (document.releaseCapture) {
+
+        document.releaseCapture();
+        document.captureElement = null;
+
+    } else {
+        if (!document.captureElement) {
+            return;
+        }
+
+        // There might be events already queued. The event proxy needs
+        // access to the captured element for these queued events.
+        // E.g. contextmenu (right-click) in Microsoft Edge
+        //
+        // Before removing the capturedElem pointer we save it to a
+        // temporary variable that the unflushed events can use.
+        _elementForUnflushedEvents = document.captureElement;
+        document.captureElement = null;
+
+        _captureObserver.disconnect();
+
+        const proxyElem = document.getElementById("noVNC_mouse_capture_elem");
+        proxyElem.style.display = "none";
+
+        window.removeEventListener('mousemove', _captureProxy);
+        window.removeEventListener('mouseup', _captureProxy);
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/util/eventtarget.js

@@ -0,0 +1,35 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+export default class EventTargetMixin {
+    constructor() {
+        this._listeners = new Map();
+    }
+
+    addEventListener(type, callback) {
+        if (!this._listeners.has(type)) {
+            this._listeners.set(type, new Set());
+        }
+        this._listeners.get(type).add(callback);
+    }
+
+    removeEventListener(type, callback) {
+        if (this._listeners.has(type)) {
+            this._listeners.get(type).delete(callback);
+        }
+    }
+
+    dispatchEvent(event) {
+        if (!this._listeners.has(event.type)) {
+            return true;
+        }
+        this._listeners.get(event.type)
+            .forEach(callback => callback.call(this, event));
+        return !event.defaultPrevented;
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/util/int.js

@@ -0,0 +1,15 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2020 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+export function toUnsigned32bit(toConvert) {
+    return toConvert >>> 0;
+}
+
+export function toSigned32bit(toConvert) {
+    return toConvert | 0;
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/util/logging.js

@@ -0,0 +1,56 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+/*
+ * Logging/debug routines
+ */
+
+let _logLevel = 'warn';
+
+let Debug = () => {};
+let Info = () => {};
+let Warn = () => {};
+let Error = () => {};
+
+export function initLogging(level) {
+    if (typeof level === 'undefined') {
+        level = _logLevel;
+    } else {
+        _logLevel = level;
+    }
+
+    Debug = Info = Warn = Error = () => {};
+
+    if (typeof window.console !== "undefined") {
+        /* eslint-disable no-console, no-fallthrough */
+        switch (level) {
+            case 'debug':
+                Debug = console.debug.bind(window.console);
+            case 'info':
+                Info  = console.info.bind(window.console);
+            case 'warn':
+                Warn  = console.warn.bind(window.console);
+            case 'error':
+                Error = console.error.bind(window.console);
+            case 'none':
+                break;
+            default:
+                throw new window.Error("invalid logging type '" + level + "'");
+        }
+        /* eslint-enable no-console, no-fallthrough */
+    }
+}
+
+export function getLogging() {
+    return _logLevel;
+}
+
+export { Debug, Info, Warn, Error };
+
+// Initialize logging level
+initLogging();

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/util/strings.js

@@ -0,0 +1,28 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+// Decode from UTF-8
+export function decodeUTF8(utf8string, allowLatin1=false) {
+    try {
+        return decodeURIComponent(escape(utf8string));
+    } catch (e) {
+        if (e instanceof URIError) {
+            if (allowLatin1) {
+                // If we allow Latin1 we can ignore any decoding fails
+                // and in these cases return the original string
+                return utf8string;
+            }
+        }
+        throw e;
+    }
+}
+
+// Encode to UTF-8
+export function encodeUTF8(DOMString) {
+    return unescape(encodeURIComponent(DOMString));
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/core/websock.js

@@ -0,0 +1,365 @@
+/*
+ * Websock: high-performance buffering wrapper
+ * Copyright (C) 2019 The noVNC authors
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * Websock is similar to the standard WebSocket / RTCDataChannel object
+ * but with extra buffer handling.
+ *
+ * Websock has built-in receive queue buffering; the message event
+ * does not contain actual data but is simply a notification that
+ * there is new data available. Several rQ* methods are available to
+ * read binary data off of the receive queue.
+ */
+
+import * as Log from './util/logging.js';
+
+// this has performance issues in some versions Chromium, and
+// doesn't gain a tremendous amount of performance increase in Firefox
+// at the moment.  It may be valuable to turn it on in the future.
+const MAX_RQ_GROW_SIZE = 40 * 1024 * 1024;  // 40 MiB
+
+// Constants pulled from RTCDataChannelState enum
+// https://developer.mozilla.org/en-US/docs/Web/API/RTCDataChannel/readyState#RTCDataChannelState_enum
+const DataChannel = {
+    CONNECTING: "connecting",
+    OPEN: "open",
+    CLOSING: "closing",
+    CLOSED: "closed"
+};
+
+const ReadyStates = {
+    CONNECTING: [WebSocket.CONNECTING, DataChannel.CONNECTING],
+    OPEN: [WebSocket.OPEN, DataChannel.OPEN],
+    CLOSING: [WebSocket.CLOSING, DataChannel.CLOSING],
+    CLOSED: [WebSocket.CLOSED, DataChannel.CLOSED],
+};
+
+// Properties a raw channel must have, WebSocket and RTCDataChannel are two examples
+const rawChannelProps = [
+    "send",
+    "close",
+    "binaryType",
+    "onerror",
+    "onmessage",
+    "onopen",
+    "protocol",
+    "readyState",
+];
+
+export default class Websock {
+    constructor() {
+        this._websocket = null;  // WebSocket or RTCDataChannel object
+
+        this._rQi = 0;           // Receive queue index
+        this._rQlen = 0;         // Next write position in the receive queue
+        this._rQbufferSize = 1024 * 1024 * 4; // Receive queue buffer size (4 MiB)
+        // called in init: this._rQ = new Uint8Array(this._rQbufferSize);
+        this._rQ = null; // Receive queue
+
+        this._sQbufferSize = 1024 * 10;  // 10 KiB
+        // called in init: this._sQ = new Uint8Array(this._sQbufferSize);
+        this._sQlen = 0;
+        this._sQ = null;  // Send queue
+
+        this._eventHandlers = {
+            message: () => {},
+            open: () => {},
+            close: () => {},
+            error: () => {}
+        };
+    }
+
+    // Getters and setters
+
+    get readyState() {
+        let subState;
+
+        if (this._websocket === null) {
+            return "unused";
+        }
+
+        subState = this._websocket.readyState;
+
+        if (ReadyStates.CONNECTING.includes(subState)) {
+            return "connecting";
+        } else if (ReadyStates.OPEN.includes(subState)) {
+            return "open";
+        } else if (ReadyStates.CLOSING.includes(subState)) {
+            return "closing";
+        } else if (ReadyStates.CLOSED.includes(subState)) {
+            return "closed";
+        }
+
+        return "unknown";
+    }
+
+    // Receive queue
+    rQpeek8() {
+        return this._rQ[this._rQi];
+    }
+
+    rQskipBytes(bytes) {
+        this._rQi += bytes;
+    }
+
+    rQshift8() {
+        return this._rQshift(1);
+    }
+
+    rQshift16() {
+        return this._rQshift(2);
+    }
+
+    rQshift32() {
+        return this._rQshift(4);
+    }
+
+    // TODO(directxman12): test performance with these vs a DataView
+    _rQshift(bytes) {
+        let res = 0;
+        for (let byte = bytes - 1; byte >= 0; byte--) {
+            res += this._rQ[this._rQi++] << (byte * 8);
+        }
+        return res >>> 0;
+    }
+
+    rQshiftStr(len) {
+        let str = "";
+        // Handle large arrays in steps to avoid long strings on the stack
+        for (let i = 0; i < len; i += 4096) {
+            let part = this.rQshiftBytes(Math.min(4096, len - i), false);
+            str += String.fromCharCode.apply(null, part);
+        }
+        return str;
+    }
+
+    rQshiftBytes(len, copy=true) {
+        this._rQi += len;
+        if (copy) {
+            return this._rQ.slice(this._rQi - len, this._rQi);
+        } else {
+            return this._rQ.subarray(this._rQi - len, this._rQi);
+        }
+    }
+
+    rQshiftTo(target, len) {
+        // TODO: make this just use set with views when using a ArrayBuffer to store the rQ
+        target.set(new Uint8Array(this._rQ.buffer, this._rQi, len));
+        this._rQi += len;
+    }
+
+    rQpeekBytes(len, copy=true) {
+        if (copy) {
+            return this._rQ.slice(this._rQi, this._rQi + len);
+        } else {
+            return this._rQ.subarray(this._rQi, this._rQi + len);
+        }
+    }
+
+    // Check to see if we must wait for 'num' bytes (default to FBU.bytes)
+    // to be available in the receive queue. Return true if we need to
+    // wait (and possibly print a debug message), otherwise false.
+    rQwait(msg, num, goback) {
+        if (this._rQlen - this._rQi < num) {
+            if (goback) {
+                if (this._rQi < goback) {
+                    throw new Error("rQwait cannot backup " + goback + " bytes");
+                }
+                this._rQi -= goback;
+            }
+            return true; // true means need more data
+        }
+        return false;
+    }
+
+    // Send queue
+
+    sQpush8(num) {
+        this._sQensureSpace(1);
+        this._sQ[this._sQlen++] = num;
+    }
+
+    sQpush16(num) {
+        this._sQensureSpace(2);
+        this._sQ[this._sQlen++] = (num >> 8) & 0xff;
+        this._sQ[this._sQlen++] = (num >> 0) & 0xff;
+    }
+
+    sQpush32(num) {
+        this._sQensureSpace(4);
+        this._sQ[this._sQlen++] = (num >> 24) & 0xff;
+        this._sQ[this._sQlen++] = (num >> 16) & 0xff;
+        this._sQ[this._sQlen++] = (num >>  8) & 0xff;
+        this._sQ[this._sQlen++] = (num >>  0) & 0xff;
+    }
+
+    sQpushString(str) {
+        let bytes = str.split('').map(chr => chr.charCodeAt(0));
+        this.sQpushBytes(new Uint8Array(bytes));
+    }
+
+    sQpushBytes(bytes) {
+        for (let offset = 0;offset < bytes.length;) {
+            this._sQensureSpace(1);
+
+            let chunkSize = this._sQbufferSize - this._sQlen;
+            if (chunkSize > bytes.length - offset) {
+                chunkSize = bytes.length - offset;
+            }
+
+            this._sQ.set(bytes.subarray(offset, offset + chunkSize), this._sQlen);
+            this._sQlen += chunkSize;
+            offset += chunkSize;
+        }
+    }
+
+    flush() {
+        if (this._sQlen > 0 && this.readyState === 'open') {
+            this._websocket.send(new Uint8Array(this._sQ.buffer, 0, this._sQlen));
+            this._sQlen = 0;
+        }
+    }
+
+    _sQensureSpace(bytes) {
+        if (this._sQbufferSize - this._sQlen < bytes) {
+            this.flush();
+        }
+    }
+
+    // Event handlers
+    off(evt) {
+        this._eventHandlers[evt] = () => {};
+    }
+
+    on(evt, handler) {
+        this._eventHandlers[evt] = handler;
+    }
+
+    _allocateBuffers() {
+        this._rQ = new Uint8Array(this._rQbufferSize);
+        this._sQ = new Uint8Array(this._sQbufferSize);
+    }
+
+    init() {
+        this._allocateBuffers();
+        this._rQi = 0;
+        this._websocket = null;
+    }
+
+    open(uri, protocols) {
+        this.attach(new WebSocket(uri, protocols));
+    }
+
+    attach(rawChannel) {
+        this.init();
+
+        // Must get object and class methods to be compatible with the tests.
+        const channelProps = [...Object.keys(rawChannel), ...Object.getOwnPropertyNames(Object.getPrototypeOf(rawChannel))];
+        for (let i = 0; i < rawChannelProps.length; i++) {
+            const prop = rawChannelProps[i];
+            if (channelProps.indexOf(prop) < 0) {
+                throw new Error('Raw channel missing property: ' + prop);
+            }
+        }
+
+        this._websocket = rawChannel;
+        this._websocket.binaryType = "arraybuffer";
+        this._websocket.onmessage = this._recvMessage.bind(this);
+
+        this._websocket.onopen = () => {
+            Log.Debug('>> WebSock.onopen');
+            if (this._websocket.protocol) {
+                Log.Info("Server choose sub-protocol: " + this._websocket.protocol);
+            }
+
+            this._eventHandlers.open();
+            Log.Debug("<< WebSock.onopen");
+        };
+
+        this._websocket.onclose = (e) => {
+            Log.Debug(">> WebSock.onclose");
+            this._eventHandlers.close(e);
+            Log.Debug("<< WebSock.onclose");
+        };
+
+        this._websocket.onerror = (e) => {
+            Log.Debug(">> WebSock.onerror: " + e);
+            this._eventHandlers.error(e);
+            Log.Debug("<< WebSock.onerror: " + e);
+        };
+    }
+
+    close() {
+        if (this._websocket) {
+            if (this.readyState === 'connecting' ||
+                this.readyState === 'open') {
+                Log.Info("Closing WebSocket connection");
+                this._websocket.close();
+            }
+
+            this._websocket.onmessage = () => {};
+        }
+    }
+
+    // private methods
+
+    // We want to move all the unread data to the start of the queue,
+    // e.g. compacting.
+    // The function also expands the receive que if needed, and for
+    // performance reasons we combine these two actions to avoid
+    // unnecessary copying.
+    _expandCompactRQ(minFit) {
+        // if we're using less than 1/8th of the buffer even with the incoming bytes, compact in place
+        // instead of resizing
+        const requiredBufferSize =  (this._rQlen - this._rQi + minFit) * 8;
+        const resizeNeeded = this._rQbufferSize < requiredBufferSize;
+
+        if (resizeNeeded) {
+            // Make sure we always *at least* double the buffer size, and have at least space for 8x
+            // the current amount of data
+            this._rQbufferSize = Math.max(this._rQbufferSize * 2, requiredBufferSize);
+        }
+
+        // we don't want to grow unboundedly
+        if (this._rQbufferSize > MAX_RQ_GROW_SIZE) {
+            this._rQbufferSize = MAX_RQ_GROW_SIZE;
+            if (this._rQbufferSize - (this._rQlen - this._rQi) < minFit) {
+                throw new Error("Receive queue buffer exceeded " + MAX_RQ_GROW_SIZE + " bytes, and the new message could not fit");
+            }
+        }
+
+        if (resizeNeeded) {
+            const oldRQbuffer = this._rQ.buffer;
+            this._rQ = new Uint8Array(this._rQbufferSize);
+            this._rQ.set(new Uint8Array(oldRQbuffer, this._rQi, this._rQlen - this._rQi));
+        } else {
+            this._rQ.copyWithin(0, this._rQi, this._rQlen);
+        }
+
+        this._rQlen = this._rQlen - this._rQi;
+        this._rQi = 0;
+    }
+
+    // push arraybuffer values onto the end of the receive que
+    _recvMessage(e) {
+        if (this._rQlen == this._rQi) {
+            // All data has now been processed, this means we
+            // can reset the receive queue.
+            this._rQlen = 0;
+            this._rQi = 0;
+        }
+        const u8 = new Uint8Array(e.data);
+        if (u8.length > this._rQbufferSize - this._rQlen) {
+            this._expandCompactRQ(u8.length);
+        }
+        this._rQ.set(u8, this._rQlen);
+        this._rQlen += u8.length;
+
+        if (this._rQlen - this._rQi > 0) {
+            this._eventHandlers.message();
+        } else {
+            Log.Debug("Ignoring empty message");
+        }
+    }
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/vendor/pako/LICENSE

@@ -0,0 +1,21 @@
+(The MIT License)
+
+Copyright (C) 2014-2016 by Vitaly Puzrin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/vendor/pako/README.md

@@ -0,0 +1,6 @@
+This is an ES6-modules-compatible version of
+https://github.com/nodeca/pako, based on pako version 1.0.3.
+
+It's more-or-less a direct translation of the original, with unused parts
+removed, and the dynamic support for non-typed arrays removed (since ES6
+modules don't work well with dynamic exports).

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/vendor/pako/lib/utils/common.js

@@ -0,0 +1,45 @@
+// reduce buffer size, avoiding mem copy
+export function shrinkBuf (buf, size) {
+  if (buf.length === size) { return buf; }
+  if (buf.subarray) { return buf.subarray(0, size); }
+  buf.length = size;
+  return buf;
+};
+
+
+export function arraySet (dest, src, src_offs, len, dest_offs) {
+  if (src.subarray && dest.subarray) {
+    dest.set(src.subarray(src_offs, src_offs + len), dest_offs);
+    return;
+  }
+  // Fallback to ordinary array
+  for (var i = 0; i < len; i++) {
+    dest[dest_offs + i] = src[src_offs + i];
+  }
+}
+
+// Join array of chunks to single array.
+export function flattenChunks (chunks) {
+  var i, l, len, pos, chunk, result;
+
+  // calculate data length
+  len = 0;
+  for (i = 0, l = chunks.length; i < l; i++) {
+    len += chunks[i].length;
+  }
+
+  // join chunks
+  result = new Uint8Array(len);
+  pos = 0;
+  for (i = 0, l = chunks.length; i < l; i++) {
+    chunk = chunks[i];
+    result.set(chunk, pos);
+    pos += chunk.length;
+  }
+
+  return result;
+}
+
+export var Buf8  = Uint8Array;
+export var Buf16 = Uint16Array;
+export var Buf32 = Int32Array;

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/vendor/pako/lib/zlib/adler32.js

@@ -0,0 +1,27 @@
+// Note: adler32 takes 12% for level 0 and 2% for level 6.
+// It doesn't worth to make additional optimizationa as in original.
+// Small size is preferable.
+
+export default function adler32(adler, buf, len, pos) {
+  var s1 = (adler & 0xffff) |0,
+      s2 = ((adler >>> 16) & 0xffff) |0,
+      n = 0;
+
+  while (len !== 0) {
+    // Set limit ~ twice less than 5552, to keep
+    // s2 in 31-bits, because we force signed ints.
+    // in other case %= will fail.
+    n = len > 2000 ? 2000 : len;
+    len -= n;
+
+    do {
+      s1 = (s1 + buf[pos++]) |0;
+      s2 = (s2 + s1) |0;
+    } while (--n);
+
+    s1 %= 65521;
+    s2 %= 65521;
+  }
+
+  return (s1 | (s2 << 16)) |0;
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/vendor/pako/lib/zlib/constants.js

@@ -0,0 +1,47 @@
+export default {
+
+  /* Allowed flush values; see deflate() and inflate() below for details */
+  Z_NO_FLUSH:         0,
+  Z_PARTIAL_FLUSH:    1,
+  Z_SYNC_FLUSH:       2,
+  Z_FULL_FLUSH:       3,
+  Z_FINISH:           4,
+  Z_BLOCK:            5,
+  Z_TREES:            6,
+
+  /* Return codes for the compression/decompression functions. Negative values
+  * are errors, positive values are used for special but normal events.
+  */
+  Z_OK:               0,
+  Z_STREAM_END:       1,
+  Z_NEED_DICT:        2,
+  Z_ERRNO:           -1,
+  Z_STREAM_ERROR:    -2,
+  Z_DATA_ERROR:      -3,
+  //Z_MEM_ERROR:     -4,
+  Z_BUF_ERROR:       -5,
+  //Z_VERSION_ERROR: -6,
+
+  /* compression levels */
+  Z_NO_COMPRESSION:         0,
+  Z_BEST_SPEED:             1,
+  Z_BEST_COMPRESSION:       9,
+  Z_DEFAULT_COMPRESSION:   -1,
+
+
+  Z_FILTERED:               1,
+  Z_HUFFMAN_ONLY:           2,
+  Z_RLE:                    3,
+  Z_FIXED:                  4,
+  Z_DEFAULT_STRATEGY:       0,
+
+  /* Possible values of the data_type field (though see inflate()) */
+  Z_BINARY:                 0,
+  Z_TEXT:                   1,
+  //Z_ASCII:                1, // = Z_TEXT (deprecated)
+  Z_UNKNOWN:                2,
+
+  /* The deflate compression method */
+  Z_DEFLATED:               8
+  //Z_NULL:                 null // Use -1 or null inline, depending on var type
+};

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/vendor/pako/lib/zlib/crc32.js

@@ -0,0 +1,36 @@
+// Note: we can't get significant speed boost here.
+// So write code to minimize size - no pregenerated tables
+// and array tools dependencies.
+
+
+// Use ordinary array, since untyped makes no boost here
+export default function makeTable() {
+  var c, table = [];
+
+  for (var n = 0; n < 256; n++) {
+    c = n;
+    for (var k = 0; k < 8; k++) {
+      c = ((c & 1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
+    }
+    table[n] = c;
+  }
+
+  return table;
+}
+
+// Create table on load. Just 255 signed longs. Not a problem.
+var crcTable = makeTable();
+
+
+function crc32(crc, buf, len, pos) {
+  var t = crcTable,
+      end = pos + len;
+
+  crc ^= -1;
+
+  for (var i = pos; i < end; i++) {
+    crc = (crc >>> 8) ^ t[(crc ^ buf[i]) & 0xFF];
+  }
+
+  return (crc ^ (-1)); // >>> 0;
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/vendor/pako/lib/zlib/gzheader.js

@@ -0,0 +1,35 @@
+export default function GZheader() {
+  /* true if compressed data believed to be text */
+  this.text       = 0;
+  /* modification time */
+  this.time       = 0;
+  /* extra flags (not used when writing a gzip file) */
+  this.xflags     = 0;
+  /* operating system */
+  this.os         = 0;
+  /* pointer to extra field or Z_NULL if none */
+  this.extra      = null;
+  /* extra field length (valid if extra != Z_NULL) */
+  this.extra_len  = 0; // Actually, we don't need it in JS,
+                       // but leave for few code modifications
+
+  //
+  // Setup limits is not necessary because in js we should not preallocate memory
+  // for inflate use constant limit in 65536 bytes
+  //
+
+  /* space at extra (only when reading header) */
+  // this.extra_max  = 0;
+  /* pointer to zero-terminated file name or Z_NULL */
+  this.name       = '';
+  /* space at name (only when reading header) */
+  // this.name_max   = 0;
+  /* pointer to zero-terminated comment or Z_NULL */
+  this.comment    = '';
+  /* space at comment (only when reading header) */
+  // this.comm_max   = 0;
+  /* true if there was or will be a header crc */
+  this.hcrc       = 0;
+  /* true when done reading gzip header (not used when writing a gzip file) */
+  this.done       = false;
+}

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/vendor/pako/lib/zlib/inffast.js

@@ -0,0 +1,324 @@
+// See state defs from inflate.js
+var BAD = 30;       /* got a data error -- remain here until reset */
+var TYPE = 12;      /* i: waiting for type bits, including last-flag bit */
+
+/*
+   Decode literal, length, and distance codes and write out the resulting
+   literal and match bytes until either not enough input or output is
+   available, an end-of-block is encountered, or a data error is encountered.
+   When large enough input and output buffers are supplied to inflate(), for
+   example, a 16K input buffer and a 64K output buffer, more than 95% of the
+   inflate execution time is spent in this routine.
+
+   Entry assumptions:
+
+        state.mode === LEN
+        strm.avail_in >= 6
+        strm.avail_out >= 258
+        start >= strm.avail_out
+        state.bits < 8
+
+   On return, state.mode is one of:
+
+        LEN -- ran out of enough output space or enough available input
+        TYPE -- reached end of block code, inflate() to interpret next block
+        BAD -- error in block data
+
+   Notes:
+
+    - The maximum input bits used by a length/distance pair is 15 bits for the
+      length code, 5 bits for the length extra, 15 bits for the distance code,
+      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
+      Therefore if strm.avail_in >= 6, then there is enough input to avoid
+      checking for available input while decoding.
+
+    - The maximum bytes that a single length/distance pair can output is 258
+      bytes, which is the maximum length that can be coded.  inflate_fast()
+      requires strm.avail_out >= 258 for each loop to avoid checking for
+      output space.
+ */
+export default function inflate_fast(strm, start) {
+  var state;
+  var _in;                    /* local strm.input */
+  var last;                   /* have enough input while in < last */
+  var _out;                   /* local strm.output */
+  var beg;                    /* inflate()'s initial strm.output */
+  var end;                    /* while out < end, enough space available */
+//#ifdef INFLATE_STRICT
+  var dmax;                   /* maximum distance from zlib header */
+//#endif
+  var wsize;                  /* window size or zero if not using window */
+  var whave;                  /* valid bytes in the window */
+  var wnext;                  /* window write index */
+  // Use `s_window` instead `window`, avoid conflict with instrumentation tools
+  var s_window;               /* allocated sliding window, if wsize != 0 */
+  var hold;                   /* local strm.hold */
+  var bits;                   /* local strm.bits */
+  var lcode;                  /* local strm.lencode */
+  var dcode;                  /* local strm.distcode */
+  var lmask;                  /* mask for first level of length codes */
+  var dmask;                  /* mask for first level of distance codes */
+  var here;                   /* retrieved table entry */
+  var op;                     /* code bits, operation, extra bits, or */
+                              /*  window position, window bytes to copy */
+  var len;                    /* match length, unused bytes */
+  var dist;                   /* match distance */
+  var from;                   /* where to copy match from */
+  var from_source;
+
+
+  var input, output; // JS specific, because we have no pointers
+
+  /* copy state to local variables */
+  state = strm.state;
+  //here = state.here;
+  _in = strm.next_in;
+  input = strm.input;
+  last = _in + (strm.avail_in - 5);
+  _out = strm.next_out;
+  output = strm.output;
+  beg = _out - (start - strm.avail_out);
+  end = _out + (strm.avail_out - 257);
+//#ifdef INFLATE_STRICT
+  dmax = state.dmax;
+//#endif
+  wsize = state.wsize;
+  whave = state.whave;
+  wnext = state.wnext;
+  s_window = state.window;
+  hold = state.hold;
+  bits = state.bits;
+  lcode = state.lencode;
+  dcode = state.distcode;
+  lmask = (1 << state.lenbits) - 1;
+  dmask = (1 << state.distbits) - 1;
+
+
+  /* decode literals and length/distances until end-of-block or not enough
+     input data or output space */
+
+  top:
+  do {
+    if (bits < 15) {
+      hold += input[_in++] << bits;
+      bits += 8;
+      hold += input[_in++] << bits;
+      bits += 8;
+    }
+
+    here = lcode[hold & lmask];
+
+    dolen:
+    for (;;) { // Goto emulation
+      op = here >>> 24/*here.bits*/;
+      hold >>>= op;
+      bits -= op;
+      op = (here >>> 16) & 0xff/*here.op*/;
+      if (op === 0) {                          /* literal */
+        //Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
+        //        "inflate:         literal '%c'\n" :
+        //        "inflate:         literal 0x%02x\n", here.val));
+        output[_out++] = here & 0xffff/*here.val*/;
+      }
+      else if (op & 16) {                     /* length base */
+        len = here & 0xffff/*here.val*/;
+        op &= 15;                           /* number of extra bits */
+        if (op) {
+          if (bits < op) {
+            hold += input[_in++] << bits;
+            bits += 8;
+          }
+          len += hold & ((1 << op) - 1);
+          hold >>>= op;
+          bits -= op;
+        }
+        //Tracevv((stderr, "inflate:         length %u\n", len));
+        if (bits < 15) {
+          hold += input[_in++] << bits;
+          bits += 8;
+          hold += input[_in++] << bits;
+          bits += 8;
+        }
+        here = dcode[hold & dmask];
+
+        dodist:
+        for (;;) { // goto emulation
+          op = here >>> 24/*here.bits*/;
+          hold >>>= op;
+          bits -= op;
+          op = (here >>> 16) & 0xff/*here.op*/;
+
+          if (op & 16) {                      /* distance base */
+            dist = here & 0xffff/*here.val*/;
+            op &= 15;                       /* number of extra bits */
+            if (bits < op) {
+              hold += input[_in++] << bits;
+              bits += 8;
+              if (bits < op) {
+                hold += input[_in++] << bits;
+                bits += 8;
+              }
+            }
+            dist += hold & ((1 << op) - 1);
+//#ifdef INFLATE_STRICT
+            if (dist > dmax) {
+              strm.msg = 'invalid distance too far back';
+              state.mode = BAD;
+              break top;
+            }
+//#endif
+            hold >>>= op;
+            bits -= op;
+            //Tracevv((stderr, "inflate:         distance %u\n", dist));
+            op = _out - beg;                /* max distance in output */
+            if (dist > op) {                /* see if copy from window */
+              op = dist - op;               /* distance back in window */
+              if (op > whave) {
+                if (state.sane) {
+                  strm.msg = 'invalid distance too far back';
+                  state.mode = BAD;
+                  break top;
+                }
+
+// (!) This block is disabled in zlib defailts,
+// don't enable it for binary compatibility
+//#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+//                if (len <= op - whave) {
+//                  do {
+//                    output[_out++] = 0;
+//                  } while (--len);
+//                  continue top;
+//                }
+//                len -= op - whave;
+//                do {
+//                  output[_out++] = 0;
+//                } while (--op > whave);
+//                if (op === 0) {
+//                  from = _out - dist;
+//                  do {
+//                    output[_out++] = output[from++];
+//                  } while (--len);
+//                  continue top;
+//                }
+//#endif
+              }
+              from = 0; // window index
+              from_source = s_window;
+              if (wnext === 0) {           /* very common case */
+                from += wsize - op;
+                if (op < len) {         /* some from window */
+                  len -= op;
+                  do {
+                    output[_out++] = s_window[from++];
+                  } while (--op);
+                  from = _out - dist;  /* rest from output */
+                  from_source = output;
+                }
+              }
+              else if (wnext < op) {      /* wrap around window */
+                from += wsize + wnext - op;
+                op -= wnext;
+                if (op < len) {         /* some from end of window */
+                  len -= op;
+                  do {
+                    output[_out++] = s_window[from++];
+                  } while (--op);
+                  from = 0;
+                  if (wnext < len) {  /* some from start of window */
+                    op = wnext;
+                    len -= op;
+                    do {
+                      output[_out++] = s_window[from++];
+                    } while (--op);
+                    from = _out - dist;      /* rest from output */
+                    from_source = output;
+                  }
+                }
+              }
+              else {                      /* contiguous in window */
+                from += wnext - op;
+                if (op < len) {         /* some from window */
+                  len -= op;
+                  do {
+                    output[_out++] = s_window[from++];
+                  } while (--op);
+                  from = _out - dist;  /* rest from output */
+                  from_source = output;
+                }
+              }
+              while (len > 2) {
+                output[_out++] = from_source[from++];
+                output[_out++] = from_source[from++];
+                output[_out++] = from_source[from++];
+                len -= 3;
+              }
+              if (len) {
+                output[_out++] = from_source[from++];
+                if (len > 1) {
+                  output[_out++] = from_source[from++];
+                }
+              }
+            }
+            else {
+              from = _out - dist;          /* copy direct from output */
+              do {                        /* minimum length is three */
+                output[_out++] = output[from++];
+                output[_out++] = output[from++];
+                output[_out++] = output[from++];
+                len -= 3;
+              } while (len > 2);
+              if (len) {
+                output[_out++] = output[from++];
+                if (len > 1) {
+                  output[_out++] = output[from++];
+                }
+              }
+            }
+          }
+          else if ((op & 64) === 0) {          /* 2nd level distance code */
+            here = dcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))];
+            continue dodist;
+          }
+          else {
+            strm.msg = 'invalid distance code';
+            state.mode = BAD;
+            break top;
+          }
+
+          break; // need to emulate goto via "continue"
+        }
+      }
+      else if ((op & 64) === 0) {              /* 2nd level length code */
+        here = lcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))];
+        continue dolen;
+      }
+      else if (op & 32) {                     /* end-of-block */
+        //Tracevv((stderr, "inflate:         end of block\n"));
+        state.mode = TYPE;
+        break top;
+      }
+      else {
+        strm.msg = 'invalid literal/length code';
+        state.mode = BAD;
+        break top;
+      }
+
+      break; // need to emulate goto via "continue"
+    }
+  } while (_in < last && _out < end);
+
+  /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
+  len = bits >> 3;
+  _in -= len;
+  bits -= len << 3;
+  hold &= (1 << bits) - 1;
+
+  /* update state and return */
+  strm.next_in = _in;
+  strm.next_out = _out;
+  strm.avail_in = (_in < last ? 5 + (last - _in) : 5 - (_in - last));
+  strm.avail_out = (_out < end ? 257 + (end - _out) : 257 - (_out - end));
+  state.hold = hold;
+  state.bits = bits;
+  return;
+};

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/vendor/pako/lib/zlib/inftrees.js

@@ -0,0 +1,322 @@
+import * as utils from "../utils/common.js";
+
+var MAXBITS = 15;
+var ENOUGH_LENS = 852;
+var ENOUGH_DISTS = 592;
+//var ENOUGH = (ENOUGH_LENS+ENOUGH_DISTS);
+
+var CODES = 0;
+var LENS = 1;
+var DISTS = 2;
+
+var lbase = [ /* Length codes 257..285 base */
+  3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
+  35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0
+];
+
+var lext = [ /* Length codes 257..285 extra */
+  16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
+  19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 72, 78
+];
+
+var dbase = [ /* Distance codes 0..29 base */
+  1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
+  257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
+  8193, 12289, 16385, 24577, 0, 0
+];
+
+var dext = [ /* Distance codes 0..29 extra */
+  16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22,
+  23, 23, 24, 24, 25, 25, 26, 26, 27, 27,
+  28, 28, 29, 29, 64, 64
+];
+
+export default function inflate_table(type, lens, lens_index, codes, table, table_index, work, opts)
+{
+  var bits = opts.bits;
+      //here = opts.here; /* table entry for duplication */
+
+  var len = 0;               /* a code's length in bits */
+  var sym = 0;               /* index of code symbols */
+  var min = 0, max = 0;          /* minimum and maximum code lengths */
+  var root = 0;              /* number of index bits for root table */
+  var curr = 0;              /* number of index bits for current table */
+  var drop = 0;              /* code bits to drop for sub-table */
+  var left = 0;                   /* number of prefix codes available */
+  var used = 0;              /* code entries in table used */
+  var huff = 0;              /* Huffman code */
+  var incr;              /* for incrementing code, index */
+  var fill;              /* index for replicating entries */
+  var low;               /* low bits for current root entry */
+  var mask;              /* mask for low root bits */
+  var next;             /* next available space in table */
+  var base = null;     /* base value table to use */
+  var base_index = 0;
+//  var shoextra;    /* extra bits table to use */
+  var end;                    /* use base and extra for symbol > end */
+  var count = new utils.Buf16(MAXBITS + 1); //[MAXBITS+1];    /* number of codes of each length */
+  var offs = new utils.Buf16(MAXBITS + 1); //[MAXBITS+1];     /* offsets in table for each length */
+  var extra = null;
+  var extra_index = 0;
+
+  var here_bits, here_op, here_val;
+
+  /*
+   Process a set of code lengths to create a canonical Huffman code.  The
+   code lengths are lens[0..codes-1].  Each length corresponds to the
+   symbols 0..codes-1.  The Huffman code is generated by first sorting the
+   symbols by length from short to long, and retaining the symbol order
+   for codes with equal lengths.  Then the code starts with all zero bits
+   for the first code of the shortest length, and the codes are integer
+   increments for the same length, and zeros are appended as the length
+   increases.  For the deflate format, these bits are stored backwards
+   from their more natural integer increment ordering, and so when the
+   decoding tables are built in the large loop below, the integer codes
+   are incremented backwards.
+
+   This routine assumes, but does not check, that all of the entries in
+   lens[] are in the range 0..MAXBITS.  The caller must assure this.
+   1..MAXBITS is interpreted as that code length.  zero means that that
+   symbol does not occur in this code.
+
+   The codes are sorted by computing a count of codes for each length,
+   creating from that a table of starting indices for each length in the
+   sorted table, and then entering the symbols in order in the sorted
+   table.  The sorted table is work[], with that space being provided by
+   the caller.
+
+   The length counts are used for other purposes as well, i.e. finding
+   the minimum and maximum length codes, determining if there are any
+   codes at all, checking for a valid set of lengths, and looking ahead
+   at length counts to determine sub-table sizes when building the
+   decoding tables.
+   */
+
+  /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
+  for (len = 0; len <= MAXBITS; len++) {
+    count[len] = 0;
+  }
+  for (sym = 0; sym < codes; sym++) {
+    count[lens[lens_index + sym]]++;
+  }
+
+  /* bound code lengths, force root to be within code lengths */
+  root = bits;
+  for (max = MAXBITS; max >= 1; max--) {
+    if (count[max] !== 0) { break; }
+  }
+  if (root > max) {
+    root = max;
+  }
+  if (max === 0) {                     /* no symbols to code at all */
+    //table.op[opts.table_index] = 64;  //here.op = (var char)64;    /* invalid code marker */
+    //table.bits[opts.table_index] = 1;   //here.bits = (var char)1;
+    //table.val[opts.table_index++] = 0;   //here.val = (var short)0;
+    table[table_index++] = (1 << 24) | (64 << 16) | 0;
+
+
+    //table.op[opts.table_index] = 64;
+    //table.bits[opts.table_index] = 1;
+    //table.val[opts.table_index++] = 0;
+    table[table_index++] = (1 << 24) | (64 << 16) | 0;
+
+    opts.bits = 1;
+    return 0;     /* no symbols, but wait for decoding to report error */
+  }
+  for (min = 1; min < max; min++) {
+    if (count[min] !== 0) { break; }
+  }
+  if (root < min) {
+    root = min;
+  }
+
+  /* check for an over-subscribed or incomplete set of lengths */
+  left = 1;
+  for (len = 1; len <= MAXBITS; len++) {
+    left <<= 1;
+    left -= count[len];
+    if (left < 0) {
+      return -1;
+    }        /* over-subscribed */
+  }
+  if (left > 0 && (type === CODES || max !== 1)) {
+    return -1;                      /* incomplete set */
+  }
+
+  /* generate offsets into symbol table for each length for sorting */
+  offs[1] = 0;
+  for (len = 1; len < MAXBITS; len++) {
+    offs[len + 1] = offs[len] + count[len];
+  }
+
+  /* sort symbols by length, by symbol order within each length */
+  for (sym = 0; sym < codes; sym++) {
+    if (lens[lens_index + sym] !== 0) {
+      work[offs[lens[lens_index + sym]]++] = sym;
+    }
+  }
+
+  /*
+   Create and fill in decoding tables.  In this loop, the table being
+   filled is at next and has curr index bits.  The code being used is huff
+   with length len.  That code is converted to an index by dropping drop
+   bits off of the bottom.  For codes where len is less than drop + curr,
+   those top drop + curr - len bits are incremented through all values to
+   fill the table with replicated entries.
+
+   root is the number of index bits for the root table.  When len exceeds
+   root, sub-tables are created pointed to by the root entry with an index
+   of the low root bits of huff.  This is saved in low to check for when a
+   new sub-table should be started.  drop is zero when the root table is
+   being filled, and drop is root when sub-tables are being filled.
+
+   When a new sub-table is needed, it is necessary to look ahead in the
+   code lengths to determine what size sub-table is needed.  The length
+   counts are used for this, and so count[] is decremented as codes are
+   entered in the tables.
+
+   used keeps track of how many table entries have been allocated from the
+   provided *table space.  It is checked for LENS and DIST tables against
+   the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
+   the initial root table size constants.  See the comments in inftrees.h
+   for more information.
+
+   sym increments through all symbols, and the loop terminates when
+   all codes of length max, i.e. all codes, have been processed.  This
+   routine permits incomplete codes, so another loop after this one fills
+   in the rest of the decoding tables with invalid code markers.
+   */
+
+  /* set up for code type */
+  // poor man optimization - use if-else instead of switch,
+  // to avoid deopts in old v8
+  if (type === CODES) {
+    base = extra = work;    /* dummy value--not used */
+    end = 19;
+
+  } else if (type === LENS) {
+    base = lbase;
+    base_index -= 257;
+    extra = lext;
+    extra_index -= 257;
+    end = 256;
+
+  } else {                    /* DISTS */
+    base = dbase;
+    extra = dext;
+    end = -1;
+  }
+
+  /* initialize opts for loop */
+  huff = 0;                   /* starting code */
+  sym = 0;                    /* starting code symbol */
+  len = min;                  /* starting code length */
+  next = table_index;              /* current table to fill in */
+  curr = root;                /* current table index bits */
+  drop = 0;                   /* current bits to drop from code for index */
+  low = -1;                   /* trigger new sub-table when len > root */
+  used = 1 << root;          /* use root table entries */
+  mask = used - 1;            /* mask for comparing low */
+
+  /* check available table space */
+  if ((type === LENS && used > ENOUGH_LENS) ||
+    (type === DISTS && used > ENOUGH_DISTS)) {
+    return 1;
+  }
+
+  /* process all codes and make table entries */
+  for (;;) {
+    /* create table entry */
+    here_bits = len - drop;
+    if (work[sym] < end) {
+      here_op = 0;
+      here_val = work[sym];
+    }
+    else if (work[sym] > end) {
+      here_op = extra[extra_index + work[sym]];
+      here_val = base[base_index + work[sym]];
+    }
+    else {
+      here_op = 32 + 64;         /* end of block */
+      here_val = 0;
+    }
+
+    /* replicate for those indices with low len bits equal to huff */
+    incr = 1 << (len - drop);
+    fill = 1 << curr;
+    min = fill;                 /* save offset to next table */
+    do {
+      fill -= incr;
+      table[next + (huff >> drop) + fill] = (here_bits << 24) | (here_op << 16) | here_val |0;
+    } while (fill !== 0);
+
+    /* backwards increment the len-bit code huff */
+    incr = 1 << (len - 1);
+    while (huff & incr) {
+      incr >>= 1;
+    }
+    if (incr !== 0) {
+      huff &= incr - 1;
+      huff += incr;
+    } else {
+      huff = 0;
+    }
+
+    /* go to next symbol, update count, len */
+    sym++;
+    if (--count[len] === 0) {
+      if (len === max) { break; }
+      len = lens[lens_index + work[sym]];
+    }
+
+    /* create new sub-table if needed */
+    if (len > root && (huff & mask) !== low) {
+      /* if first time, transition to sub-tables */
+      if (drop === 0) {
+        drop = root;
+      }
+
+      /* increment past last table */
+      next += min;            /* here min is 1 << curr */
+
+      /* determine length of next table */
+      curr = len - drop;
+      left = 1 << curr;
+      while (curr + drop < max) {
+        left -= count[curr + drop];
+        if (left <= 0) { break; }
+        curr++;
+        left <<= 1;
+      }
+
+      /* check for enough space */
+      used += 1 << curr;
+      if ((type === LENS && used > ENOUGH_LENS) ||
+        (type === DISTS && used > ENOUGH_DISTS)) {
+        return 1;
+      }
+
+      /* point entry in root table to sub-table */
+      low = huff & mask;
+      /*table.op[low] = curr;
+      table.bits[low] = root;
+      table.val[low] = next - opts.table_index;*/
+      table[low] = (root << 24) | (curr << 16) | (next - table_index) |0;
+    }
+  }
+
+  /* fill in remaining table entry if code is incomplete (guaranteed to have
+   at most one remaining entry, since if the code is incomplete, the
+   maximum code length that was allowed to get this far is one bit) */
+  if (huff !== 0) {
+    //table.op[next + huff] = 64;            /* invalid code marker */
+    //table.bits[next + huff] = len - drop;
+    //table.val[next + huff] = 0;
+    table[next + huff] = ((len - drop) << 24) | (64 << 16) |0;
+  }
+
+  /* set return parameters */
+  //opts.table_index += used;
+  opts.bits = root;
+  return 0;
+};

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/vendor/pako/lib/zlib/messages.js

@@ -0,0 +1,11 @@
+export default {
+  2:      'need dictionary',     /* Z_NEED_DICT       2  */
+  1:      'stream end',          /* Z_STREAM_END      1  */
+  0:      '',                    /* Z_OK              0  */
+  '-1':   'file error',          /* Z_ERRNO         (-1) */
+  '-2':   'stream error',        /* Z_STREAM_ERROR  (-2) */
+  '-3':   'data error',          /* Z_DATA_ERROR    (-3) */
+  '-4':   'insufficient memory', /* Z_MEM_ERROR     (-4) */
+  '-5':   'buffer error',        /* Z_BUF_ERROR     (-5) */
+  '-6':   'incompatible version' /* Z_VERSION_ERROR (-6) */
+};

packages/tesm-core/src/tesm_core/static/tesm_core/vendor/novnc/vendor/pako/lib/zlib/zstream.js

@@ -0,0 +1,24 @@
+export default function ZStream() {
+  /* next input byte */
+  this.input = null; // JS specific, because we have no pointers
+  this.next_in = 0;
+  /* number of bytes available at input */
+  this.avail_in = 0;
+  /* total number of input bytes read so far */
+  this.total_in = 0;
+  /* next output byte should be put there */
+  this.output = null; // JS specific, because we have no pointers
+  this.next_out = 0;
+  /* remaining free space at output */
+  this.avail_out = 0;
+  /* total number of bytes output so far */
+  this.total_out = 0;
+  /* last error message, NULL if no error */
+  this.msg = ''/*Z_NULL*/;
+  /* not visible by applications */
+  this.state = null;
+  /* best guess about the data type: binary or text */
+  this.data_type = 2/*Z_UNKNOWN*/;
+  /* adler32 value of the uncompressed data */
+  this.adler = 0;
+}