srv/poe_manager/app.py

@@ -3,8 +3,8 @@ from flask import Flask, render_template, request, redirect, url_for, flash
 from flask_login import LoginManager, login_user, login_required, logout_user, UserMixin, current_user
 from flask_bcrypt import Bcrypt
 from cryptography.fernet import Fernet
-import sqlite3
-import glob, os, re
+from datetime import datetime
+import sqlite3, glob, os, re
 
 app = Flask(__name__)
 app.secret_key = "309cc4d5ce1fe7486ae25cbd232bbdfe6a72539c03f0127d372186dbdc0fc928"
@@ -81,6 +81,35 @@ def logout():
     logout_user()
     return redirect(url_for('login'))
 
+def get_last_seen(dev_name: str):
+    """Letztes Mal, dass ein Gerät erreichbar war."""
+    log_files = glob.glob("/var/log/rpi-*.log")
+    if not log_files:
+        return None
+
+    latest_time = None
+
+    # alle Logs durchgehen
+    for logfile in sorted(log_files):
+        with open(logfile, "r") as f:
+            for line in f:
+                line = line.strip()
+                if f"{dev_name} ist erreichbar!" in line:
+                    try:
+                        ts_str = line.split(" ")[0] + " " + line.split(" ")[1]  # "YYYY-MM-DD HH:MM:SS"
+                        ts = datetime.strptime(ts_str, "%Y-%m-%d %H:%M:%S")
+                        if latest_time is None or ts > latest_time:
+                            latest_time = ts
+                    except Exception:
+                        continue
+
+    if latest_time:
+        date_str = latest_time.strftime("Zuletzt Online am %d.%m.%Y")
+        time_str = latest_time.strftime("um %H:%M Uhr")
+        return f"{date_str}\n{time_str}"
+
+    return None
+
 @app.route("/")
 @login_required
 def index():
@@ -90,26 +119,40 @@ def index():
     c.execute("SELECT mac, name, is_active FROM devices ORDER BY name ASC")
     devices = c.fetchall()
 
-    # Intervall aus DB (Minuten) laden
+    # Intervall aus DB laden
     c.execute("SELECT value FROM settings WHERE key='interval'")
     row = c.fetchone()
-    interval = int(row[0]) if row else 5  # Default 5 Minuten
+    interval = int(row[0]) if row else 5
     conn.close()
 
-    # Status aus letztem Log ermitteln
-    import glob, os
+    # Status aus Logdateien ermitteln
     log_files = glob.glob("/var/log/rpi-*.log")
     status_dict = {}
+    last_seen_dict = {}
+
     if log_files:
         latest_log = max(log_files, key=os.path.getctime)
         with open(latest_log, "r") as f:
-            for line in f:
-                for dev in devices:
-                    if dev[1] in line:
-                        status_dict[dev[0]] = "online" if "erreichbar" in line else "offline"
+            lines = f.readlines()
 
-    # Template rendern mit Devices, Status und Intervall
-    return render_template("index.html", devices=devices, status=status_dict, interval=interval)
+        for dev in devices:
+            last_status = None
+            for line in reversed(lines):
+                if f"{dev[1]} ist erreichbar!" in line:
+                    last_status = "online"
+                    break
+                elif f"{dev[1]} ist nicht erreichbar!" in line:
+                    last_status = "offline"
+                    break
+
+            if last_status:
+                status_dict[dev[0]] = last_status
+                if last_status == "offline":
+                    last_seen_dict[dev[0]] = get_last_seen(dev[1])
+            else:
+                status_dict[dev[0]] = "unbekannt"
+
+    return render_template("index.html", devices=devices, status=status_dict, last_seen=last_seen_dict, interval=interval)
 
 @app.route("/settings", methods=["GET", "POST"])
 @login_required
@@ -179,7 +222,7 @@ def devices():
             switch_hostname = request.form.get('switch_hostname')
             is_active = 1 if 'is_active' in request.form else 0
 
-            if not all([mac, rpi_ip, port, name, switch_hostname]):
+            if not all([mac, rpi_ip, name]):
                 flash("Alle Felder müssen ausgefüllt sein!")
                 return redirect(url_for('devices'))
 
@@ -216,22 +259,22 @@ def devices():
             old_mac = request.form.get('old_mac')
             mac = request.form.get('mac')
             rpi_ip = request.form.get('rpi_ip')
-            port = request.form.get('port')
+            port = request.form.get('port') or None
             name = request.form.get('name')
             switch_hostname = request.form.get('switch_hostname') or None
             is_active = 1 if 'is_active' in request.form else 0
 
-            # --- Prüfen, ob es sich um eine Switch-Änderung handelt ---
-            if mac is None and rpi_ip is None and port is None and name is None and switch_hostname:
-                # Nur den Switch ändern
+            # --- Nur Switch ändern ---
+            # Prüfen, ob nur das Switch-Feld gesendet wurde und die anderen Felder leer sind
+            if 'switch_hostname' in request.form and all(not f for f in [mac, rpi_ip, name]):
                 device = conn.execute("SELECT name, switch_hostname FROM devices WHERE mac=?", (old_mac,)).fetchone()
-
                 if not device:
                     flash("Gerät nicht gefunden!")
                     return redirect(url_for('devices'))
 
                 old_switch = device['switch_hostname'] or "unbekannt"
                 device_name = device['name']
+                switch_hostname = request.form.get('switch_hostname') or ""
                 
                 try:
                     conn.execute("""
@@ -240,27 +283,36 @@ def devices():
                         WHERE mac=?
                     """, (switch_hostname, old_mac))
                     conn.commit()
-                    flash(f"Switch von {device_name} geändert: {old_switch} → {switch_hostname}")
+                    flash(f"Switch von {device_name} geändert: {old_switch} → {switch_hostname or 'Kein Switch'}")
                 except sqlite3.IntegrityError:
                     flash("Fehler beim Ändern des Switch!")
                 return redirect(url_for('devices'))
 
-                if not all([old_mac, mac, rpi_ip, port, name]):
-                    flash("Alle Felder müssen ausgefüllt sein!")
+            # --- Normales Gerät bearbeiten ---
+            # Pflichtfelder prüfen
+            if not all([old_mac, mac, rpi_ip, name]):
+                flash("Felder 'MAC', 'IP' und 'Name' müssen ausgefüllt sein!")
                 return redirect(url_for('devices'))
 
             # Prüfen auf doppelte IP außer das aktuelle Gerät
-            ip_device = conn.execute("SELECT name FROM devices WHERE rpi_ip=? AND mac<>?", (rpi_ip, old_mac)).fetchone()
+            ip_device = conn.execute(
+                "SELECT name FROM devices WHERE rpi_ip=? AND mac<>?",
+                (rpi_ip, old_mac)
+            ).fetchone()
             if ip_device:
                 flash(f"IP-Adresse existiert bereits für Gerät '{ip_device['name']}'!")
                 return redirect(url_for('devices'))
 
             # Prüfen auf doppelte MAC außer das aktuelle Gerät
-            mac_device = conn.execute("SELECT name FROM devices WHERE mac=? AND mac<>?", (mac, old_mac)).fetchone()
+            mac_device = conn.execute(
+                "SELECT name FROM devices WHERE mac=? AND mac<>?",
+                (mac, old_mac)
+            ).fetchone()
             if mac_device:
                 flash(f"MAC-Adresse existiert bereits für Gerät '{mac_device['name']}'!")
                 return redirect(url_for('devices'))
 
+            # Update durchführen
             try:
                 conn.execute("""
                     UPDATE devices
@@ -272,6 +324,7 @@ def devices():
             except sqlite3.IntegrityError:
                 flash("Fehler beim Aktualisieren des Geräts!")
 
+
         # -----------------------
         # Gerät löschen
         # -----------------------
@@ -300,7 +353,7 @@ def devices():
                switches.hostname AS switch_hostname
         FROM devices
         LEFT JOIN switches ON devices.switch_hostname = switches.hostname
-        ORDER BY switches.hostname ASC
+        ORDER BY switches.hostname ASC, devices.name ASC
     """).fetchall()
 
     conn.close()
@@ -434,36 +487,43 @@ def logs():
     return render_template('logs.html', log_content=log_content, log_name=os.path.basename(latest_log), interval=interval)
 
 def load_device_status():
-    """
-    Liest das aktuellste rpi-Logfile und extrahiert den letzten Status jedes Devices.
-    Gibt ein Dictionary zurück: {Device-Name: 'online'/'offline'}
-    """
     status = {}
+
+    # Devices aus DB laden (Name → MAC)
+    conn = sqlite3.connect("sqlite.db")
+    conn.row_factory = sqlite3.Row
+    devices = conn.execute("SELECT mac, name FROM devices").fetchall()
+    name_to_mac = {d['name']: d['mac'] for d in devices}
+    conn.close()
+
+    # Logfile
     log_files = glob.glob("/var/log/rpi-*.log")
     if not log_files:
         return status
-
     latest_log = max(log_files, key=os.path.getctime)
 
-    # Jede Zeile des Logs lesen
-    with open(latest_log, "r") as f:
-        lines = f.readlines()
-
-    # Regex für Ping-Ergebnisse
     online_re = re.compile(r"(\S+) ist erreichbar!")
     offline_re = re.compile(r"(\S+) ist nicht erreichbar!")
 
-    for line in lines:
+    with open(latest_log, "r") as f:
+        for line in f:
             line = line.strip()
             m_online = online_re.search(line)
             m_offline = offline_re.search(line)
             if m_online:
-            status[m_online.group(1)] = 'online'
+                name = m_online.group(1)
+                mac = name_to_mac.get(name)
+                if mac:
+                    status[mac] = 'online'
             elif m_offline:
-            status[m_offline.group(1)] = 'offline'
+                name = m_offline.group(1)
+                mac = name_to_mac.get(name)
+                if mac:
+                    status[mac] = 'offline'
 
     return status
 
+
 @app.route("/users", methods=["GET", "POST"])
 @login_required
 def users():

srv/poe_manager/generate_ips.py

@@ -6,7 +6,10 @@ def generate_ips_list():
     conn = sqlite3.connect(DB_PATH)
     conn.row_factory = sqlite3.Row
 
-    switches = {row['hostname']: row for row in conn.execute("SELECT hostname, ip, username, password FROM switches")}
+    switches = {row['hostname']: row for row in conn.execute(
+        "SELECT hostname, ip, username, password FROM switches"
+    )}
+
     devices = conn.execute("""
         SELECT mac, rpi_ip, port, name, switch_hostname 
         FROM devices 
@@ -16,11 +19,17 @@ def generate_ips_list():
 
     for dev in devices:
         switch = switches.get(dev['switch_hostname'])
-        if not switch:
-            continue
-        password = decrypt_password(switch['password'])
+        if switch:
+            switch_ip = switch['ip']
+            switch_user = switch['username']
+            switch_pass = decrypt_password(switch['password'])
+        else:
+            switch_ip = ""
+            switch_user = ""
+            switch_pass = ""
+
         port = dev['port'] or ""
-        print(f"{dev['rpi_ip']}:{dev['name']}:{switch['ip']}:{switch['hostname']}:{port}:{switch['username']}:{password}")
+        print(f"{dev['rpi_ip']}:{dev['name']}:{switch_ip}:{dev['switch_hostname'] or 'kein Switch'}:{port}:{switch_user}:{switch_pass}")
 
 if __name__ == "__main__":
     generate_ips_list()

srv/poe_manager/templates/devices.html

@@ -89,11 +89,12 @@
             </div>
             <div class="mb-3">
                 <label>Port</label>
-                <input type="text" name="port" class="form-control" required placeholder="z.B. 3">
+                <input type="text" name="port" class="form-control" placeholder="z.B. 3">
             </div>
             <div class="mb-3">
-                <label>Switch</label>
-                <select name="switch_hostname" class="form-select" required>
+                <label>Switch (optional)</label>
+                <select name="switch_hostname" class="form-select">
+                    <option value="">Kein Switch</option>
                     {% for sw in switches %}
                         <option value="{{ sw['hostname'] }}">{{ sw['hostname'] }}</option>
                     {% endfor %}
@@ -137,7 +138,7 @@
             </div>
             <div class="mb-3">
                 <label>Port</label>
-                <input type="text" name="port" id="edit_port" class="form-control" required placeholder="z.B. 3">
+                <input type="text" name="port" id="edit_port" class="form-control" placeholder="z.B. 3">
             </div>
         </div>
         <div class="modal-footer">
@@ -161,7 +162,8 @@
           <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
         </div>
         <div class="modal-body">
-            <select name="switch_hostname" id="switch_select" class="form-select" required>
+            <select name="switch_hostname" id="switch_select" class="form-select">
+                <option value="">Kein Switch</option>
                 {% for sw in switches %}
                     <option value="{{ sw['hostname'] }}">{{ sw['hostname'] }}</option>
                 {% endfor %}

srv/poe_manager/templates/index.html

@@ -10,12 +10,13 @@
 <div class="row row-cols-1 row-cols-md-6 g-3">
     {% for d in devices %}
     <div class="col">
-        <div class="card text-center p-2">
+        <div class="card text-center p-2"
+             {% if last_seen[d[0]] %} title="{{ last_seen[d[0]][0] }}&#10;{{ last_seen[d[0]][1] }}" {% elif status[d[0]] == 'offline' %} title="Noch nie online" {% endif %}>
             <div class="card-header">{{ d[1] }}</div>
             <div class="card-body">
                 <span class="fw-bold" style="color: 
                     {% if d[2] == 0 %}gray
-                    {% elif status[d[0]]=='online' %}green
+                    {% elif status[d[0]] == 'online' %}green
                     {% else %}red
                     {% endif %};">
                     {% if d[2] == 0 %}
@@ -29,7 +30,6 @@
     </div>
     {% endfor %}
 </div>
-
 <script>
 document.addEventListener("DOMContentLoaded", () => {
     const intervalMinutes = {{ interval | int }}; // aus DB

usr/local/bin/custom/poe.sh

@@ -96,7 +96,7 @@ while true; do
             echo "$(date '+%Y-%m-%d %H:%M:%S') $dev_name ist nicht erreichbar!" >> "$LOGFILE"
 
             # Nur PoE neu starten, wenn Port vorhanden ist
-            if [ -n "$switch_port" ]; then
+            if [ -n "$switch_port" ] && [ "$switch_port" != "None" ]; then
                 disable_poe "$switch_ip" "$switch_port" "$switch_user" "$switch_pass"
                 echo "$(date '+%Y-%m-%d %H:%M:%S') $dev_name PoE auf Port $switch_port am Switch $switch_hostname deaktiviert." >> "$LOGFILE"
                 sleep 2