ShineBridge v1.11.1 — Feature: Backup-Verwaltung im Einstellungen-Tab

Neue Sektion 'Automatische Backups':
- Aufbewahrung (Tage) konfigurierbar statt hartcodierter 14 Tage
  (config_backup_retention_days, Teil der normalen Config-Persistenz)
- Liste aller vorhandenen Backups (Datum, Größe), neueste zuerst
- Download-Button pro Backup
- Wiederherstellen-Button pro Backup (mit Bestätigungsdialog, da überschreibend)

Backend: Validierung+Anwendung aus /api/import-config in _apply_import_data()
extrahiert, von Datei-Upload und neuem Backup-Restore-Endpunkt gemeinsam
genutzt. Neue Endpunkte GET /api/config-backups, GET .../download,
POST .../restore — mit Path-Traversal-Schutz (_safe_backup_filename, nur
Dateinamen aus dem Backup-Ordner selbst).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

haos-addon/src/main.py

@@ -124,6 +124,7 @@ def _defaults() -> Dict[str, Any]:
         "inverters": [],
         "surplus_devices": [],
         "z2m_base": "zigbee2mqtt",
+        "config_backup_retention_days": 14,
     }
 
 def _load_json_safe(path: str) -> Optional[Dict]:
@@ -174,6 +175,7 @@ def save_config():
         "inverters": State.inverters_cfg,
         "surplus_devices": State.surplus_devices_cfg,
         "z2m_base": State.z2m_base,
+        "config_backup_retention_days": State.mqtt_cfg.get("config_backup_retention_days", 14),
     }
     # Backup der letzten guten Config anlegen
     if os.path.exists(CONFIG_PATH):
@@ -518,7 +520,7 @@ def api_save_config():
                     State.mqtt_cfg[k] = float(data[k])
                 except (ValueError, TypeError):
                     pass
-        for k in ("billing_day", "billing_month"):
+        for k in ("billing_day", "billing_month", "config_backup_retention_days"):
             if k in data and data[k] is not None:
                 try:
                     State.mqtt_cfg[k] = int(data[k])
@@ -824,7 +826,7 @@ def _build_export_data() -> Dict[str, Any]:
 
 
 CONFIG_BACKUP_DIR = "/share/shinebridge-backups"
-CONFIG_BACKUP_RETENTION_DAYS = 14
+CONFIG_BACKUP_RETENTION_DAYS_DEFAULT = 14
 
 
 def _export_config_backup():
@@ -839,7 +841,8 @@ def _export_config_backup():
             json.dump(_build_export_data(), f, indent=2, ensure_ascii=False)
         log.info("Config-Backup geschrieben: %s", path)
 
-        cutoff = time.time() - CONFIG_BACKUP_RETENTION_DAYS * 86400
+        retention_days = State.mqtt_cfg.get("config_backup_retention_days", CONFIG_BACKUP_RETENTION_DAYS_DEFAULT)
+        cutoff = time.time() - retention_days * 86400
         for name in os.listdir(CONFIG_BACKUP_DIR):
             fpath = os.path.join(CONFIG_BACKUP_DIR, name)
             if name.startswith("config-") and name.endswith(".json") and os.path.getmtime(fpath) < cutoff:
@@ -870,27 +873,28 @@ def api_export_config():
     )
 
 
-@app.post("/api/import-config")
-def api_import_config():
-    data = request.get_json(force=True) or {}
+def _apply_import_data(data: Dict[str, Any]) -> "tuple[bool, str, int]":
+    """Validiert + übernimmt eine ShineBridge-Export-Struktur. Gemeinsam genutzt
+    von /api/import-config (Datei-Upload) und /api/config-backups/.../restore
+    (automatisches Backup). Gibt (ok, error, anzahl_geräte) zurück."""
     if not data.get("shinebridge_export"):
-        return jsonify({"error": "Keine gültige ShineBridge-Export-Datei"}), 400
+        return False, "Keine gültige ShineBridge-Export-Datei", 0
 
     inverters = data.get("inverters", [])
     if not isinstance(inverters, list):
-        return jsonify({"error": "inverters ungültig"}), 400
+        return False, "inverters ungültig", 0
     for inv in inverters:
         model_id = inv.get("inverter_model")
         if model_id not in INVERTERS:
-            return jsonify({"error": f"Unbekanntes Modell: {model_id}"}), 400
+            return False, f"Unbekanntes Modell: {model_id}", 0
         protocol = INVERTERS[model_id].protocol
         # modbus_ip wird als generisches Host-Feld fuer alle IP-basierten Protokolle
         # wiederverwendet (modbus, goodwe_udp, kathrein) — nur ha_entity braucht keins.
         if protocol == "ha_entity":
             if not inv.get("ha_entity_prefix"):
-                return jsonify({"error": f"ha_entity_prefix fehlt in Gerät {inv.get('name', '?')}"}), 400
+                return False, f"ha_entity_prefix fehlt in Gerät {inv.get('name', '?')}", 0
         elif not inv.get("modbus_ip"):
-            return jsonify({"error": f"modbus_ip fehlt in Gerät {inv.get('name', '?')}"}), 400
+            return False, f"modbus_ip fehlt in Gerät {inv.get('name', '?')}", 0
 
     with State.lock:
         if mqtt := data.get("mqtt"):
@@ -904,7 +908,69 @@ def api_import_config():
         save_config()
 
     threading.Thread(target=_restart_all, daemon=True).start()
-    return jsonify({"ok": True, "inverters": len(inverters)})
+    return True, "", len(inverters)
+
+
+@app.post("/api/import-config")
+def api_import_config():
+    data = request.get_json(force=True) or {}
+    ok, error, count = _apply_import_data(data)
+    if not ok:
+        return jsonify({"error": error}), 400
+    return jsonify({"ok": True, "inverters": count})
+
+
+def _safe_backup_filename(filename: str) -> Optional[str]:
+    """Nur Dateinamen aus CONFIG_BACKUP_DIR selbst zulassen, kein Path-Traversal."""
+    name = os.path.basename(filename)
+    if name != filename or not name.startswith("config-") or not name.endswith(".json"):
+        return None
+    path = os.path.join(CONFIG_BACKUP_DIR, name)
+    return path if os.path.isfile(path) else None
+
+
+@app.get("/api/config-backups")
+def api_list_config_backups():
+    try:
+        files = [f for f in os.listdir(CONFIG_BACKUP_DIR) if f.startswith("config-") and f.endswith(".json")]
+    except OSError:
+        files = []
+    backups = []
+    for name in files:
+        path = os.path.join(CONFIG_BACKUP_DIR, name)
+        try:
+            st = os.stat(path)
+            backups.append({"filename": name, "modified_at": int(st.st_mtime), "size_bytes": st.st_size})
+        except OSError:
+            continue
+    backups.sort(key=lambda b: b["modified_at"], reverse=True)
+    return jsonify({
+        "backups": backups,
+        "retention_days": State.mqtt_cfg.get("config_backup_retention_days", CONFIG_BACKUP_RETENTION_DAYS_DEFAULT),
+    })
+
+
+@app.get("/api/config-backups/<path:filename>/download")
+def api_download_config_backup(filename):
+    path = _safe_backup_filename(filename)
+    if not path:
+        return jsonify({"error": "Datei nicht gefunden"}), 404
+    from flask import send_file
+    return send_file(path, mimetype="application/json", as_attachment=True, download_name=os.path.basename(path))
+
+
+@app.post("/api/config-backups/<path:filename>/restore")
+def api_restore_config_backup(filename):
+    path = _safe_backup_filename(filename)
+    if not path:
+        return jsonify({"error": "Datei nicht gefunden"}), 404
+    data = _load_json_safe(path)
+    if data is None:
+        return jsonify({"error": "Backup-Datei ist beschädigt"}), 400
+    ok, error, count = _apply_import_data(data)
+    if not ok:
+        return jsonify({"error": error}), 400
+    return jsonify({"ok": True, "inverters": count})
 
 _hist_spot_cache: Dict[str, Any] = {}  # key → {"ts", "avg_ct"}
 
@@ -976,6 +1042,7 @@ if __name__ == "__main__":
             "price_import", "price_export", "billing_day", "billing_month",
             "tariff_type", "spot_country", "spot_markup", "spot_chart",
             "billing_tracker_enabled", "monthly_rate_eur", "grundpreis_eur_per_month",
+            "config_backup_retention_days",
         ) if k in cfg}
         State.inverters_cfg = cfg.get("inverters", [])
         State.surplus_devices_cfg = cfg.get("surplus_devices", [])

haos-addon/src/web/index.html

@@ -321,6 +321,15 @@
       </div>
       <div id="import-result" style="margin-top:.5rem;font-size:.85rem"></div>
     </div>
+
+    <div class="settings-section">
+      <h3>Automatische Backups</h3>
+      <p style="color:var(--text-dim);font-size:.85rem;margin:0 0 .75rem">Täglich automatisch nach <code style="font-size:11px;background:var(--surface2);padding:1px 5px;border-radius:3px">/share/shinebridge-backups/</code> gesichert — übersteht auch einen Add-on-Uninstall+Reinstall.</p>
+      <div class="field" style="max-width:200px"><label>Aufbewahrung (Tage)</label>
+        <input type="number" id="cfg-backup-retention" min="1" max="365" value="14"></div>
+      <button class="btn btn-primary" onclick="saveBackupRetention()">Speichern</button>
+      <div id="backup-list" style="margin-top:1rem;display:flex;flex-direction:column;gap:6px"></div>
+    </div>
   </div>
 
   <!-- Flash/OTA-Panel ausgelagert nach growatt-diagnose-tool (v1.9.0) -->
@@ -477,6 +486,7 @@ function switchTab(name) {
   });
   if (name === "energy" || name === "live") startRefresh(); else stopRefresh();
   if (name === "finance") loadFinance();
+  if (name === "settings") loadBackupList();
 }
 
 // ── Energy Dashboard ──────────────────────────────────────────
@@ -1227,6 +1237,7 @@ async function loadSettings() {
   document.getElementById("billing-tracker-fields").style.display = trackerEnabled ? "" : "none";
   document.getElementById("cfg-monthly-rate").value = cfg.monthly_rate_eur ?? 0;
   document.getElementById("cfg-grundpreis").value   = cfg.grundpreis_eur_per_month ?? 0;
+  document.getElementById("cfg-backup-retention").value = cfg.config_backup_retention_days ?? 14;
 }
 
 async function savePrices() {
@@ -1304,6 +1315,61 @@ async function importConfig(input) {
   input.value = "";
 }
 
+// ── Automatische Backups ─────────────────────────────────────
+
+async function saveBackupRetention() {
+  const days = parseInt(document.getElementById("cfg-backup-retention").value) || 14;
+  try {
+    await fetchJSON(api("api/config"), {
+      method: "POST", headers: {"Content-Type": "application/json"},
+      body: JSON.stringify({ config_backup_retention_days: days }),
+    });
+    showToast("Gespeichert!", "ok");
+  } catch(e) { showToast("Fehler beim Speichern", "err"); }
+}
+
+function fBytes(n) {
+  if (n < 1024) return `${n} B`;
+  if (n < 1024*1024) return `${(n/1024).toFixed(1)} KB`;
+  return `${(n/1024/1024).toFixed(1)} MB`;
+}
+
+async function loadBackupList() {
+  const el = document.getElementById("backup-list");
+  let data;
+  try { data = await fetchJSON(api("api/config-backups")); }
+  catch(e) { el.innerHTML = '<div class="no-data">Fehler beim Laden</div>'; return; }
+
+  const backups = data.backups || [];
+  if (backups.length === 0) {
+    el.innerHTML = `<div style="font-size:12px;color:var(--text-dim)">Noch keine Backups — das erste entsteht beim nächsten Add-on-Start oder spätestens morgen.</div>`;
+    return;
+  }
+  el.innerHTML = backups.map(b => {
+    const date = new Date(b.modified_at * 1000).toLocaleString('de-DE');
+    return `<div style="display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--surface2);border:1px solid var(--border);border-radius:6px;padding:8px 12px;font-size:13px">
+      <div><strong>${esc(b.filename)}</strong><br><span style="color:var(--text-dim);font-size:11px">${date} · ${fBytes(b.size_bytes)}</span></div>
+      <div style="display:flex;gap:6px;flex-shrink:0">
+        <button class="btn" style="padding:4px 10px;font-size:12px" onclick="downloadBackup('${esc(b.filename)}')">Download</button>
+        <button class="btn btn-danger" style="padding:4px 10px;font-size:12px" onclick="restoreBackup('${esc(b.filename)}')">Wiederherstellen</button>
+      </div>
+    </div>`;
+  }).join("");
+}
+
+function downloadBackup(filename) {
+  window.location.href = api(`api/config-backups/${encodeURIComponent(filename)}/download`);
+}
+
+async function restoreBackup(filename) {
+  if (!confirm(`"${filename}" wiederherstellen? Das überschreibt die aktuelle Konfiguration (Geräte, MQTT) komplett.`)) return;
+  try {
+    const res = await fetchJSON(api(`api/config-backups/${encodeURIComponent(filename)}/restore`), { method: "POST" });
+    showToast(`${res.inverters} Gerät(e) wiederhergestellt`, "ok");
+    setTimeout(() => { loadSettings(); loadInverters(); }, 3000);
+  } catch(e) { showToast("Wiederherstellen fehlgeschlagen", "err"); }
+}
+
 // ── Surplus Devices ───────────────────────────────────────────
 
 let surplusDevices = [];