6 Commits

Author	SHA1	Message	Date
Timmy	517c8dbac3	Harden image ingress: pinned runtime, header-bomb rejection, concurrency ceiling, bounded rate limiter, canonical data-URL/polyglot contract, 503-on-unavailable, body-read timeout ... Closes the PR 63 hostile-review blockers: 1. Immutable pinned Python/Pillow runtime (TIMMY_PYTHON absolute, --verify-pin), deployment/runtime re-encode smoke gate in build_release + deploy_staging. 2. Header-only width/height/total-pixel/bomb rejection before full decode; proves 6000x6000 and 12000x12000 stay resource bounded (RSS + address-space caps). 3. Fail-fast decoder concurrency ceiling; tests count actual spawned children. 4. Rate-limiter key cardinality hard-bounded under 20k+ unexpired identities, trusted-loopback-proxy identity, no spoofable forwarded headers, fixed-window boundary burst smoothed by two-window sliding count. 5. build_release explicitly syntax/gates every new JS module + Python re-encoder + production-runtime smoke; CI runs reencode-image test and the runtime pin smoke. 6. Robust polyglot contract via canonical container parsing; rejects uppercase/mixed script, appended HTML, ZIP local/EOCD and archive tails, data after canonical JPEG/PNG/WebP end; no naive compressed-byte scans (false-positive controls pass). 7. Canonical base64 data-URL grammar with byte-exact round trip; rejects missing/excess padding, whitespace/CRLF, malformed and noncanonical encodings; exact MIME policy. 8. Missing Pillow / runtime-unavailable maps to sanitized 503 + manual fallback. 9. Inbound body-read timeout and stop-on-oversize; preserves sanitized 413, base path, provider suppression, and temp cleanup; socket torn down on rejection. Audited prior partial edits: reused the sound source modules, re-wired new tests into the unit/syntax gates, fixed a non-canonical readJson that destroyed the socket before delivering 413/408, and hardened test flakiness (port reuse, EPIPE, startup races).	2026-08-22 23:22:42 +00:00
timmy	ccb227921e	feat: harden image ingress with magic-byte validation, safe re-encode, limits, and rate control ... - src/image-ingress.js: sniff magic bytes independent of declared MIME, reject polyglots (embedded ZIP/script payloads), enforce 4 MB body cap and 4096 px dimension cap before decode, re-encode via fixed-argv Pillow subprocess with 15s timeout, strip EXIF/GPS/XMP/tEXt metadata, fail closed with sanitized short errors and manual fallback. - scripts/reencode_image.py: defensive decoder; decompression-bomb guarded; prints one JSON verdict line, never image bytes. - src/rate-limiter.js + server.mjs /api/analyze: bounded fixed-window per-client limiter, 429 with retry-after, no payload retention. - tests/image-ingress.test.js: hostile synthetic fixtures only (spoofed MIME, GIF/ZIP polyglots, truncated/garbage/empty images, 12000x12000 bomb, 6000x6000 oversized, EXIF+GPS, SVG-with-script); asserts provider is never reached on rejection and error messages contain no bytes/base64/stacks. Closes #16	2026-08-22 21:43:36 +00:00
Timmy	877b8a01f3	fix: make staging compatible with strict CSP	2026-08-21 15:01:05 +00:00
Timmy	7e11154302	feat: add private subpage staging slice	2026-08-21 14:12:17 +00:00
Timmy	a50afa6722	feat: simplify Timmy and add secure Hermes chat	2026-08-20 16:21:00 +00:00
Timmy	58906f11d0	feat: ship photo-first Timmy prototype and sovereign vision spike	2026-08-19 01:54:29 +00:00