- django-cors-headers with env-driven CORS_ALLOWED_ORIGINS,
CORS_ALLOW_ALL_ORIGINS, CORS_ALLOW_CREDENTIALS and CSRF_TRUSTED_ORIGINS;
same-origin traffic is unaffected and a disallowed origin gets no CORS
headers. Token auth needs no cookies, so credentials stay off by default.
- TRUST_PROXY_HEADERS=true lets a TLS-terminating proxy supply
X-Forwarded-Proto/Host for correct absolute URLs.
- API media URLs (raw/thumbnail/upload/similarity/staged previews) are now
absolute, built from the request host, so <img>/<video>/fetch() keep
working when the SPA is served from another origin. Signed URLs are still
per-user; nothing is stored in the DB.
- The SPA gains VITE_API_BASE (build-time, empty = same-origin) applied by
a small apiUrl() helper used for XHR/fetch and the few URL fallbacks.
Verified with a throwaway instance: preflight and GET responses carry the
allowed origin, foreign origins get nothing, media GETs include CORS for
cross-origin fetch(), and payload URLs use the request host (dev :8000
unchanged).
- /similar (nav: Similar): drop a file to get the exact MD5 match, the
perceptual matches against the library, and e621 IQDB candidates
(auto-run for images when credentials are configured). Read-only —
nothing enters the library.
- SimilarityCheck model + /api/similarity/ (create/list/retrieve/delete)
with signed preview URLs and an expires_at timestamp.
- Temp files are wiped on startup (AppConfig.ready, file-only so no
database access during initialization), lazily past
SIMILARITY_TTL_MINUTES (default 30, env-overridable), on delete, and
by manage.py cleanup_similarity.
- uploadFile() takes a target path; .env.example documents the TTL.
JakeBreath