stream-control/app.py

@@ -1,8 +1,13 @@
 """Network profile control surface; backend access is restricted to a forced SSH command."""
 from __future__ import annotations
-import json, os, secrets, subprocess, time
+import json, os, secrets, sqlite3, subprocess, time
+from datetime import datetime
+from zoneinfo import ZoneInfo
 from flask import Flask, flash, jsonify, redirect, render_template, request, session, url_for
 
+BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+AUDIT_DB = os.path.join(BASE_DIR, "control-history.db")
+TZ = ZoneInfo("Europe/Berlin")
 app = Flask(__name__)
 app.secret_key = os.environ["SESSION_SECRET"]
 app.config.update(SESSION_COOKIE_HTTPONLY=True, SESSION_COOKIE_SAMESITE="Strict", SESSION_COOKIE_SECURE=True)
@@ -15,28 +20,42 @@ PROFILES = {
 }
 _CACHE = {"at": 0.0, "data": None}
 
-def rpc(command: str, timeout: int = 25):
-    p = subprocess.run(
-        ["ssh", "-o", "BatchMode=yes", "-o", "ConnectTimeout=8", "edge-maint", command],
-        capture_output=True, text=True, timeout=timeout,
-    )
-    raw = p.stdout.strip()
+def init_audit():
+    with sqlite3.connect(AUDIT_DB) as db:
+        db.execute("CREATE TABLE IF NOT EXISTS audit(id INTEGER PRIMARY KEY AUTOINCREMENT,ts INTEGER NOT NULL,action TEXT NOT NULL,detail TEXT,ok INTEGER NOT NULL,error TEXT,remote_ip TEXT)")
+        db.execute("CREATE INDEX IF NOT EXISTS idx_audit_ts ON audit(ts DESC)")
+
+def audit(action, detail, result):
     try:
-        data = json.loads(raw) if raw else {}
-    except json.JSONDecodeError:
-        data = {"ok": False, "error": (p.stderr or raw or "invalid response")[:300]}
-    if p.returncode and data.get("ok") is not False:
-        data = {"ok": False, "error": (p.stderr or raw or f"rpc exit {p.returncode}")[:300]}
-    return data
+        remote = (request.headers.get("X-Forwarded-For") or request.remote_addr or "").split(",")[0].strip()
+        with sqlite3.connect(AUDIT_DB) as db:
+            db.execute("INSERT INTO audit(ts,action,detail,ok,error,remote_ip) VALUES(?,?,?,?,?,?)", (int(time.time()), action, detail[:500], 1 if result.get("ok") else 0, str(result.get("error", ""))[:500], remote[:80]))
+            db.execute("DELETE FROM audit WHERE id NOT IN (SELECT id FROM audit ORDER BY id DESC LIMIT 2000)")
+    except Exception:
+        app.logger.exception("audit write failed")
+
+init_audit()
+
+def rpc(command: str, timeout: int = 25):
+    try:
+        p = subprocess.run(["ssh", "-o", "BatchMode=yes", "-o", "ConnectTimeout=8", "edge-maint", command], capture_output=True, text=True, timeout=timeout)
+        raw = p.stdout.strip()
+        try:
+            data = json.loads(raw) if raw else {}
+        except json.JSONDecodeError:
+            data = {"ok": False, "error": (p.stderr or raw or "invalid response")[:300]}
+        if p.returncode and data.get("ok") is not False:
+            data = {"ok": False, "error": (p.stderr or raw or f"rpc exit {p.returncode}")[:300]}
+        return data
+    except Exception as exc:
+        return {"ok": False, "error": str(exc)[:300]}
 
 def get_state(force=False):
     now = time.monotonic()
     if not force and _CACHE["data"] is not None and now - _CACHE["at"] < 3:
         return _CACHE["data"]
-    try:
-        data = rpc("state")
-    except Exception as exc:
-        data = {"ok": False, "error": str(exc)[:300], "limits": {}, "tc": {}, "services": {}, "policy": {}, "ipsets": {}}
+    data = rpc("state")
+    data.setdefault("limits", {}); data.setdefault("tc", {}); data.setdefault("services", {}); data.setdefault("policy", {}); data.setdefault("ipsets", {})
     _CACHE.update(at=now, data=data)
     return data
 
@@ -48,6 +67,26 @@ def csrf_token():
 
 app.jinja_env.globals["csrf_token"] = csrf_token
 
+@app.template_filter("dt")
+def fmt_datetime(value):
+    try: return datetime.fromtimestamp(int(value), TZ).strftime("%d.%m.%Y %H:%M:%S")
+    except (TypeError, ValueError, OSError): return "—"
+
+@app.template_filter("bytes")
+def fmt_bytes(value):
+    try: number = float(value or 0)
+    except (TypeError, ValueError): return "—"
+    for unit in ("B", "KiB", "MiB", "GiB", "TiB"):
+        if number < 1024 or unit == "TiB": return f"{number:.1f} {unit}"
+        number /= 1024
+
+@app.template_filter("duration")
+def fmt_duration(value):
+    try: seconds = max(0, int(value))
+    except (TypeError, ValueError): return "—"
+    days, seconds = divmod(seconds, 86400); hours, seconds = divmod(seconds, 3600); minutes, _ = divmod(seconds, 60)
+    return (f"{days}d {hours}h" if days else f"{hours}h {minutes}m" if hours else f"{minutes}m")
+
 @app.before_request
 def protect_post():
     if request.method == "POST" and not secrets.compare_digest(request.form.get("csrf", ""), session.get("csrf", "invalid")):
@@ -55,16 +94,25 @@ def protect_post():
 
 @app.get("/")
 def dashboard():
-    state = get_state()
-    return render_template("dashboard.html", state=state, profiles=PROFILES)
+    return render_template("dashboard.html", state=get_state(), profiles=PROFILES, page="dashboard")
+
+@app.get("/history")
+def history_page():
+    remote = rpc("history", timeout=35)
+    with sqlite3.connect(AUDIT_DB) as db:
+        db.row_factory = sqlite3.Row
+        local_audit = [dict(row) for row in db.execute("SELECT ts,action,detail,ok,error,remote_ip FROM audit ORDER BY id DESC LIMIT 250")]
+    history = remote.get("history", {}) if remote.get("ok") else {}
+    for name in ("sessions", "ips", "events", "blocks"): history.setdefault(name, [])
+    return render_template("history.html", state=get_state(), history=history, audit=local_audit, history_error=remote.get("error"), page="history")
 
 @app.post("/profile/<name>")
 def apply_profile(name):
     profile = PROFILES.get(name)
     if not profile:
-        flash("Unbekanntes Profil", "error")
-        return redirect(url_for("dashboard"))
+        flash("Unbekanntes Profil", "error"); return redirect(url_for("dashboard"))
     result = rpc(f"set-limits {profile['ch']} {profile['vpn']}")
+    audit("profile", f"{profile['label']}: Region {profile['ch']} / Cloud {profile['vpn']} Mbit", result)
     _CACHE["data"] = None
     flash(f"Profil {profile['label']} aktiviert" if result.get("ok") else f"Fehler: {result.get('error','unbekannt')}", "success" if result.get("ok") else "error")
     return redirect(url_for("dashboard"))
@@ -73,12 +121,11 @@ def apply_profile(name):
 def custom_limits():
     try:
         ch = float(request.form["ch"]); vpn = float(request.form["vpn"])
-        if not 0.1 <= ch <= 100 or not 0.1 <= vpn <= 100:
-            raise ValueError
+        if not 0.1 <= ch <= 100 or not 0.1 <= vpn <= 100: raise ValueError
     except (KeyError, ValueError):
-        flash("Limits müssen zwischen 0,1 und 100 Mbit liegen", "error")
-        return redirect(url_for("dashboard"))
+        flash("Limits müssen zwischen 0,1 und 100 Mbit liegen", "error"); return redirect(url_for("dashboard"))
     result = rpc(f"set-limits {ch:g} {vpn:g}")
+    audit("limits", f"Region {ch:g} / Cloud {vpn:g} Mbit", result)
     _CACHE["data"] = None
     flash("Benutzerdefinierte Limits gesetzt" if result.get("ok") else f"Fehler: {result.get('error','unbekannt')}", "success" if result.get("ok") else "error")
     return redirect(url_for("dashboard"))
@@ -87,35 +134,29 @@ def custom_limits():
 def policy():
     mode = request.form.get("mode", "")
     try:
-        min_sessions = int(request.form.get("min_sessions", "2"))
-        block_minutes = int(request.form.get("block_minutes", "10"))
-        if mode not in {"off", "monitor", "block"} or not 2 <= min_sessions <= 8 or not 1 <= block_minutes <= 1440:
-            raise ValueError
+        min_sessions = int(request.form.get("min_sessions", "2")); block_minutes = int(request.form.get("block_minutes", "10"))
+        if mode not in {"off", "monitor", "block"} or not 2 <= min_sessions <= 8 or not 1 <= block_minutes <= 1440: raise ValueError
     except ValueError:
-        flash("Ungültige Policy-Werte", "error")
-        return redirect(url_for("dashboard"))
+        flash("Ungültige Policy-Werte", "error"); return redirect(url_for("dashboard"))
     result = rpc(f"set-policy {mode} {min_sessions} {block_minutes}")
+    audit("policy", f"Modus {mode}, ab {min_sessions} Streams, {block_minutes} Minuten", result)
     _CACHE["data"] = None
     flash("Session-Policy aktualisiert" if result.get("ok") else f"Fehler: {result.get('error','unbekannt')}", "success" if result.get("ok") else "error")
     return redirect(url_for("dashboard"))
 
 @app.post("/maintenance/<action>")
 def maintenance(action):
-    mapping = {
-        "refresh": "limiter refresh", "start": "limiter start", "stop": "limiter stop",
-        "worker": "restart worker", "admin": "restart admin",
-    }
+    mapping = {"refresh": "limiter refresh", "start": "limiter start", "stop": "limiter stop", "worker": "restart worker", "admin": "restart admin"}
     command = mapping.get(action)
-    if not command:
-        return "unknown action", 404
+    if not command: return "unknown action", 404
     result = rpc(command)
+    audit("maintenance", action, result)
     _CACHE["data"] = None
     flash(f"Aktion {action} gestartet" if result.get("ok") else f"Fehler: {result.get('error','unbekannt')}", "success" if result.get("ok") else "error")
     return redirect(url_for("dashboard"))
 
 @app.get("/api/status")
-def api_status():
-    return jsonify(get_state())
+def api_status(): return jsonify(get_state())
 
 @app.get("/health")
 def health():