Add sliding-window in-memory RateLimiter service (Arc<Mutex<HashMap>>)
with per-IP and per-user-id limits on all public endpoint classes:
- POST /api/v1/join: 5/min per IP
- GET /api/v1/feed: configurable per IP (feed_rate_per_min, default 60)
- POST /api/v1/upload: configurable per user (upload_rate_per_hour, default 10)
- GET /api/v1/export/zip|html: configurable per IP (export_rate_per_day, default 3)
Limits are hot-reloadable via the config table. All 429 responses use
German error messages. Client IP is read from X-Forwarded-For (Caddy).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add async ZIP and HTML offline viewer export workers, download endpoints,
and a guest-facing /export page.
Backend — export workers (tokio::spawn, run after gallery release):
- ZIP worker: streams all non-deleted originals into Gallery.zip via
async_zip (Stored compression), organised into Photos/ and Videos/
with {date}_{uploader}_{id}.{ext} filenames; updates progress_pct in DB
- HTML worker: renders Memories.html via minijinja template (self-contained:
inlined CSS + JS, relative media paths); packs it with README.txt and
all media into Memories.zip (Deflate for text, Stored for media)
- Both workers mark export_job status (running → done/failed), update
export_zip_ready / export_html_ready on the event, and broadcast SSE
export-progress + export-available when both complete
Backend — new endpoints (AuthUser):
- GET /export/zip → streams Gallery.zip if export_zip_ready
- GET /export/html → streams Memories.zip if export_html_ready
- GET /export/status → released flag + per-type status/progress (moved from admin)
Memories.html features: warm keepsake aesthetic, responsive grid, fullscreen
lightbox with captions/comments/likes, client-side hashtag filter chips,
XSS-safe JS, fully offline (no external deps)
Frontend — /export page:
- Locked state: padlock illustration + message
- Released state: ZIP and HTML cards with progress bars (SSE-driven),
download buttons enabled only when ready
- HTML guide modal (unzip instructions + Wi-Fi tip) before download begins
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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>
