Webinterface

2025-09-26 15:21:37 +00:00
parent 26fb560aac
commit e99e17be3b
6 changed files with 367 additions and 0 deletions
--- a/srv/poe_manager/app.py
+++ b/srv/poe_manager/app.py
@@ -0,0 +1,296 @@
+#!/usr/bin/env python3
+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
+
+app = Flask(__name__)
+app.secret_key = "309cc4d5ce1fe7486ae25cbd232bbdfe6a72539c03f0127d372186dbdc0fc928"
+bcrypt = Bcrypt(app)
+
+login_manager = LoginManager()
+login_manager.login_view = "login"
+login_manager.init_app(app)
+
+DB_PATH = "/srv/poe_manager/sqlite.db"
+
+class User(UserMixin):
+    def __init__(self, id_, username, is_admin):
+        self.id = id_
+        self.username = username
+        self.is_admin = is_admin
+
+def get_interval_seconds():
+    conn = get_db_connection()
+    row = conn.execute("SELECT value FROM settings WHERE key='check_interval'").fetchone()
+    conn.close()
+    return int(row['value']) if row else 300
+
+with open("/srv/poe_manager/fernet.key", "rb") as f:
+    fernet = Fernet(f.read())
+
+def encrypt_password(password: str) -> str:
+    return fernet.encrypt(password.encode()).decode()
+
+def decrypt_password(token: str) -> str:
+    return fernet.decrypt(token.encode()).decode()
+
+def get_db_connection():
+    conn = sqlite3.connect(DB_PATH)
+    conn.row_factory = sqlite3.Row
+    return conn
+
+def get_devices():
+    """
+    Liefert eine Liste aller Devices aus der Datenbank als Dictionaries.
+    """
+    conn = get_db_connection()
+    devices = conn.execute("SELECT mac, rpi_ip, port, name, switch_hostname FROM devices").fetchall()
+    conn.close()
+    return devices
+
+@login_manager.user_loader
+def load_user(user_id):
+    conn = get_db_connection()
+    user = conn.execute("SELECT * FROM users WHERE id = ?", (user_id,)).fetchone()
+    conn.close()
+    if user:
+        return User(user['id'], user['username'], user['is_admin'])
+    return None
+
+@app.route('/login', methods=['GET', 'POST'])
+def login():
+    if request.method == 'POST':
+        username = request.form['username']
+        password = request.form['password']
+        conn = get_db_connection()
+        user = conn.execute("SELECT * FROM users WHERE username = ?", (username,)).fetchone()
+        conn.close()
+        if user and bcrypt.check_password_hash(user['password'], password):
+            login_user(User(user['id'], user['username'], user['is_admin']))
+            return redirect(url_for('index'))
+        else:
+            flash("Ungültiger Benutzername oder Passwort")
+    return render_template('login.html')
+
+@app.route('/logout')
+@login_required
+def logout():
+    logout_user()
+    return redirect(url_for('login'))
+
+@app.route('/')
+@login_required
+def index():
+    devices = get_devices()  # alle Devices aus der DB
+    status = load_device_status()
+    
+    # Standardstatus, falls Gerät im Log noch nicht auftaucht
+    for d in devices:
+        if d['name'] not in status:
+            status[d['name']] = 'offline'
+
+    interval_min = get_interval_seconds() // 60
+    return render_template('index.html', devices=devices, status=status, interval=interval_min)
+
+@app.route('/settings', methods=['GET', 'POST'])
+@login_required
+def settings():
+    if not current_user.is_admin:
+        flash("Zugriff verweigert!")
+        return redirect(url_for('index'))
+
+    conn = get_db_connection()
+    interval_row = conn.execute("SELECT value FROM settings WHERE key='check_interval'").fetchone()
+    interval_min = int(interval_row['value']) // 60 if interval_row else 5  # Standard 5 Minuten
+
+    if request.method == 'POST':
+        new_interval_min = int(request.form['interval'])
+        conn.execute("INSERT OR REPLACE INTO settings (key, value) VALUES ('check_interval', ?)", (new_interval_min*60,))
+        conn.commit()
+        flash(f"Intervall auf {new_interval_min} Minuten gesetzt.")
+        interval_min = new_interval_min
+
+    conn.close()
+    return render_template('settings.html', interval=interval_min)
+
+@app.route('/devices', methods=['GET', 'POST'])
+@login_required
+def devices():
+    conn = get_db_connection()
+    switches = conn.execute("SELECT hostname FROM switches").fetchall()
+
+    # Inline-Add
+    if request.method == 'POST' and 'add_device' in request.form:
+        if not current_user.is_admin:
+            flash("Zugriff verweigert!")
+            return redirect(url_for('devices'))
+        mac = request.form['mac']
+        rpi_ip = request.form['rpi_ip']
+        port = request.form['port']
+        name = request.form['name']
+        switch_hostname = request.form['switch_hostname']
+        try:
+            conn.execute("INSERT INTO devices (mac, rpi_ip, port, name, switch_hostname) VALUES (?, ?, ?, ?, ?)",
+                         (mac, rpi_ip, port, name, switch_hostname))
+            conn.commit()
+            flash(f"Gerät {name} hinzugefügt.")
+        except sqlite3.IntegrityError:
+            flash("MAC existiert bereits oder Eingabefehler!")
+
+    # Inline-Edit
+    if request.method == 'POST' and 'edit_device' in request.form:
+        if not current_user.is_admin:
+            flash("Zugriff verweigert!")
+            return redirect(url_for('devices'))
+        old_mac = request.form['old_mac']
+        mac = request.form['mac']
+        rpi_ip = request.form['rpi_ip']
+        port = request.form['port']
+        name = request.form['name']
+        switch_hostname = request.form['switch_hostname']
+        try:
+            conn.execute("""
+                UPDATE devices
+                SET mac=?, rpi_ip=?, port=?, name=?, switch_hostname=?
+                WHERE mac=?
+            """, (mac, rpi_ip, port, name, switch_hostname, old_mac))
+            conn.commit()
+            flash(f"Gerät {name} aktualisiert.")
+        except sqlite3.IntegrityError:
+            flash("MAC existiert bereits oder Eingabefehler!")
+
+    # Inline-Delete
+    if request.method == 'POST' and 'delete_device' in request.form:
+        if not current_user.is_admin:
+            flash("Zugriff verweigert!")
+            return redirect(url_for('devices'))
+        del_mac = request.form['delete_device']
+        conn.execute("DELETE FROM devices WHERE mac=?", (del_mac,))
+        conn.commit()
+        flash(f"Gerät {del_mac} gelöscht.")
+
+    devices = conn.execute("""
+        SELECT devices.mac, devices.rpi_ip, devices.port, devices.name, switches.hostname AS switch_hostname
+        FROM devices
+        JOIN switches ON devices.switch_hostname = switches.hostname
+    """).fetchall()
+    conn.close()
+    interval_min = get_interval_seconds() // 60
+    return render_template('devices.html', devices=devices, switches=switches)
+
+@app.route('/switches', methods=['GET', 'POST'])
+@login_required
+def switches():
+    conn = get_db_connection()
+
+    # Inline-Add
+    if request.method == 'POST' and 'add_switch' in request.form:
+        if not current_user.is_admin:
+            flash("Zugriff verweigert!")
+            return redirect(url_for('switches'))
+        hostname = request.form['hostname']
+        ip = request.form['ip']
+        username = request.form['username']
+        password = encrypt_password(request.form['password'])
+        try:
+            conn.execute("INSERT INTO switches (hostname, ip, username, password) VALUES (?, ?, ?, ?)",
+                         (hostname, ip, username, password))
+            conn.commit()
+            flash(f"Switch {hostname} hinzugefügt.")
+        except sqlite3.IntegrityError:
+            flash("Hostname existiert bereits oder Eingabefehler!")
+
+    # Inline-Edit
+    if request.method == 'POST' and 'edit_switch' in request.form:
+        if not current_user.is_admin:
+            flash("Zugriff verweigert!")
+            return redirect(url_for('switches'))
+        old_hostname = request.form['old_hostname']
+        hostname = request.form['hostname']
+        ip = request.form['ip']
+        username = request.form['username']
+        password = encrypt_password(request.form['password'])
+        try:
+            conn.execute("""
+                UPDATE switches
+                SET hostname=?, ip=?, username=?, password=?
+                WHERE hostname=?
+            """, (hostname, ip, username, password, old_hostname))
+            conn.commit()
+            flash(f"Switch {hostname} aktualisiert.")
+        except sqlite3.IntegrityError:
+            flash("Hostname existiert bereits oder Eingabefehler!")
+
+    # Inline-Delete
+    if request.method == 'POST' and 'delete_switch' in request.form:
+        if not current_user.is_admin:
+            flash("Zugriff verweigert!")
+            return redirect(url_for('switches'))
+        del_hostname = request.form['delete_switch']
+        conn.execute("DELETE FROM switches WHERE hostname=?", (del_hostname,))
+        conn.commit()
+        flash(f"Switch {del_hostname} gelöscht.")
+
+    switches = conn.execute("SELECT hostname, ip, username FROM switches").fetchall()
+    conn.close()
+    return render_template('switches.html', switches=switches)
+
+import glob
+import os
+
+@app.route('/logs')
+@login_required
+def logs():
+    # alle Logfiles mit Muster rpi-YYYYMMDDHHMMSS.log
+    log_files = glob.glob("/var/log/rpi-*.log")
+    if not log_files:
+        return render_template('logs.html', log_content="Keine Logfiles gefunden.")
+
+    # das neuste Logfile auswählen
+    latest_log = max(log_files, key=os.path.getctime)
+
+    try:
+        with open(latest_log, "r") as f:
+            log_content = f.read()
+    except Exception as e:
+        log_content = f"Fehler beim Lesen des Logs: {e}"
+
+    return render_template('logs.html', log_content=log_content, log_name=os.path.basename(latest_log))
+
+import glob, os, re
+
+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 = {}
+    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:
+        line = line.strip()
+        m_online = online_re.search(line)
+        m_offline = offline_re.search(line)
+        if m_online:
+            status[m_online.group(1)] = 'online'
+        elif m_offline:
+            status[m_offline.group(1)] = 'offline'
+
+    return status
+
+if __name__ == "__main__":
+    app.run(host='0.0.0.0', port=5000, debug=True)