Commit Graph

4 Commits

Author SHA1 Message Date
fabi
f08d858281 fix(security): high — live authz, XFF, SSE buffering, atomicity, pagination
H1: auth extractor re-reads the live user row — trusts the DB role (not the
    JWT claim) and rejects banned users mid-session. e2e proves a demoted
    host loses powers and a banned host is locked out and can't self-unban.
H2: client_ip takes the right-most XFF hop (the one Caddy appends); spoofed
    left-most entries are ignored, restoring IP-based throttles.
H3: Caddy excludes /api/v1/stream from `encode` so SSE isn't buffered.
H4: upload — quota increment + row insert + hashtag links now one txn.
H5: feed keyset pagination tiebroken on (created_at, id) + composite index
    (migration 010); feed_delta bounded with LIMIT.
H7: LightboxModal keys its comment load off upload.id, ending the
    SSE-driven refetch storm.
H8: CSP via SvelteKit kit.csp (svelte.config.js) hardens the localStorage
    token model against injection.

Migration 010 also adds the latent comment/comment_hashtag indexes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-01 21:25:50 +02:00
MechaCat02
d228676a56 fix(security): cross-event authz, SSE ticket flow, account hardening, audit logs
Follow-up to the comprehensive code review. Five batches:

1. Cross-event authorization: host_delete_upload, unban_user, and
   host_delete_comment now scope by auth.event_id. Adds
   Upload::find_by_id_and_event / soft_delete_in_event and a
   Comment::soft_delete_in_event variant that joins through upload.

2. Token exposure: SSE auth no longer puts the JWT in the URL.
   New /api/v1/stream/ticket endpoint mints a short-lived single-use
   ticket bound to the session; the EventSource passes ?ticket=...
   instead. Refuse to start in APP_ENV=production with the dev JWT
   sentinel; warn loudly otherwise.

3. Account hardening: per-IP+name rate limit on /recover (mitigates
   targeted lockout DoS), per-IP rate limit on /admin/login, random
   32-char admin recovery PIN (replaces "0000"), structured tracing
   events for wrong PIN, lockout, failed admin login, ban/unban/role
   change/pin-reset/host-delete.

4. DoS / correctness: comment listing paginated (LIMIT 50 + ?before=
   cursor), hashtag extraction whitelisted to ASCII alnum+underscore
   (≤40 chars) with unit tests, display_name / caption / comment body
   length validated in chars rather than bytes.

5. Cleanup: session-touch failures now logged, DATABASE_MAX_CONNECTIONS
   env var (default 10).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-17 21:00:51 +02:00
MechaCat02
141c918dd5 backend(infra): shared config helper, startup recovery, periodic maintenance
Foundations for the v0.16 features. No new endpoints here — those land in
the next commit on top of these.

- migrations 008 + 009: commit the load-bearing compression_status column
  that was uncommitted on disk; add 009_feature_toggles seeding the master
  + per-endpoint rate-limit switches, the master + per-area quota switches,
  and the admin-editable privacy_note.
- services/config.rs (new): get_str / get_i64 / get_usize / get_f64 / get_bool
  consolidating the scattered helpers that lived in three handlers.
- services/maintenance.rs (new):
  - startup_recovery() — resets compression_status='processing' and
    export_job.status='running' rows orphaned by a previous crashed
    instance, so users never see permanent "Wird vorbereitet…" spinners.
  - spawn_periodic_tasks() — hourly cleanup of expired sessions (rows
    were never pruned) + rate-limiter HashMap pruning (windows kept one
    entry per IP forever).
- services/jobs.rs (new sketch): BackgroundJob trait + JobContext for
  future jobs to plug into the same progress + SSE pipeline as
  compression/export. Not wired yet — codifies the convention.
- services/compression.rs: 120s hard timeout + kill_on_drop on ffmpeg
  so a malformed video can't hang and leak a worker semaphore permit.
- services/rate_limiter.rs: new prune() called from the periodic task.
- state.rs: SseEvent::new() constructor so event-type strings stay
  consistent instead of being typed inline at every emit site.
- models/user.rs: UserRole::as_str() for /me/context serialization.
- models/upload.rs: soft_delete() now runs in a transaction and
  decrements the uploader's total_upload_bytes (GREATEST(0, …) guard) —
  fixes a quota drift where deleting reclaimed no quota.
- Cargo.toml + Cargo.lock: add `infer = "0.15"` (multipart MIME sniffing
  used by the upload handler).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-16 14:31:41 +02:00
fabi
3f052a4f91 feat: implement upload pipeline with compression and SSE
Backend:
- POST /api/v1/upload: multipart file upload with caption + hashtags
  - Validates file size against DB config limits (image/video separate)
  - Checks user ban status and event upload lock
  - Saves original to disk under {media_path}/originals/{slug}/
  - Tracks user total_upload_bytes for quota enforcement
  - Extracts hashtags from caption text and explicit CSV field
  - Upserts hashtags and links them to uploads
- PATCH /api/v1/upload/{id}: edit caption and hashtags (owner only)
- DELETE /api/v1/upload/{id}: soft-delete (owner only)
- GET /api/v1/stream: SSE endpoint with 30s keepalive
  - Broadcasts new-upload events to all connected clients
  - Uses tokio broadcast channel for fan-out

Services:
- CompressionWorker: Tokio semaphore-bounded (concurrency=2) background processor
  - Images: resize to 800px wide JPEG preview via image crate
  - PNG originals: lossless compression via oxipng
  - Videos: ffmpeg thumbnail extraction (1 frame at 1s, scaled to 800px)
  - Updates upload record with preview_path/thumbnail_path on completion

Models:
- Upload with full CRUD (create, find, update caption, soft delete, set paths)
- Hashtag with upsert, link/unlink, extract_hashtags() text parser
- UploadDto for API serialization with like/comment counts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-31 21:48:59 +02:00