feat(auth): lock logins after repeated failures, trust proxies explicitly (FLAW-09)
MindSift CI & Docker Release / Build, Test in Container & Push (push) Successful in 59s
MindSift CI & Docker Release / Build, Test in Container & Push (push) Successful in 59s
Failed logins are counted per account+address (3), per account (20) and per address (30) within 15 minutes; a full bucket answers 429 with Retry-After for 15 minutes. Locking the account+address bucket first means an attacker cannot lock the owner out from elsewhere. Unknown names count like accounts. Success clears the account buckets, a password reset (mail or admin) lifts the lock. LOGIN_PROTECTION=false switches it off. chi's RealIP believed X-Forwarded-For from anyone. The client address now comes from the headers only when the connection is from a trusted proxy: TRUSTED_PROXIES=private (default: loopback, Docker, LAN), all (old behaviour), none, or CIDRs. A proxy that sends no client address is logged once and per-address limits are skipped for it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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@@ -153,6 +153,8 @@ Rufe `http://localhost:8080` auf. Beim ersten Start führt ein Assistent durch d
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| `DATA_DIR` | `/data` (Container) | Ablage der Datenbank `mindsift.db` |
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| `JWT_SECRET` | zufällig erzeugt (`/data/jwt.secret`) | Signaturschlüssel der Anmelde-Tokens; Platzhalter werden ignoriert |
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| `BASE_URL` | `http://localhost:8080` | Öffentliche URL. Nur wenn gesetzt (und SMTP eingerichtet ist), gibt es „Passwort vergessen?“ – die Links in den Mails werden ausschließlich daraus gebaut |
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| `TRUSTED_PROXIES` | `private` | Wessen `X-Forwarded-For`/`X-Real-IP` geglaubt wird: `private` (Proxy im Docker-/Heimnetz), `all` (immer, früheres Verhalten), `none` oder eigene CIDR-Bereiche ([Doku/reverse-proxy.md](Doku/reverse-proxy.md#client-ip-und-trusted_proxies)) |
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| `LOGIN_PROTECTION` | `true` | Sperre nach Fehlversuchen: 3 pro Konto und Adresse, 20 pro Konto, 30 pro Adresse, jeweils 15 Minuten. `false` schaltet sie ab |
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| `TZ` | `Europe/Berlin` | Zeitzone für Fälligkeiten und Alarme (ganztägige Aufgaben melden sich um 9:00) |
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| `ALLOW_REGISTRATION` | `false` | Offene Registrierung (im Admin-UI änderbar) |
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| `LOG_LEVEL` / `DEBUG` | `info` / `false` | Logging |
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