The encrypted .infiplot format (AES-256-GCM via GALLERY_SECRET) provided no
meaningful security — the payload is AI-generated story content with no
credentials or PII, and the project is open source. Replace with plaintext +
SHA-256 integrity check (format v2). Story share is now always enabled without
requiring a server secret.
- galleryCrypto.ts: AES-256-GCM → plaintext + SHA-256 hash; remove secret param
- 4 API routes: remove GALLERY_SECRET guard and 503 fallback
- story-unpack: forward specific error messages (v1 compat, hash mismatch)
- gallery/page.tsx: remove stale AES-GCM comment
- AGENTS.md: document gallery-pack/gallery-unpack routes
- .env.example, wrangler.jsonc: remove GALLERY_SECRET references
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adds a "导出图集" action at the bottom-right of the play canvas that
snapshots the current session into localStorage and opens
/gallery#id=<id> in a new tab — the original play page keeps running
untouched. In parallel, sends the doc to /api/gallery-pack and
downloads the result as a binary .infiplot file the player can send
to a friend.
The snapshot pulls in:
- Every visited scene's image + beat graph + recorded visit trail
- All AI-prefetched alternate scenes (a new resolvedPrefetchesRef in
PlayInner captures each prefetch as it resolves, so abandoned
branches the engine already paid to generate are kept)
- Character names + basePortraitUrl (voice base64 / styleReference
are stripped — they aren't needed for replay)
/gallery is a no-network interactive replay:
- Per-beat advance and per-choice navigation. Picked choices are
highlighted; unpicked choices are clickable when an alternate was
prefetched, greyed otherwise.
- Stack-based navigation for stepping into branches with one-tap
"返回主线" to collapse back to the main path.
- Top-bar batch download for scene images (including unique
AI-prefetched branch scenes, deduped against the main path) and
character portraits. Fetched with a per-file AbortController + 20s
timeout in a small concurrency pool, then clicked serially.
Prevents one slow CDN response from stranding the busy button.
- In-progress hint banner reminding the player to allow the
browser's "multiple downloads" prompt.
- F-key fullscreen with a top toolbar that auto-retracts after the
initial glance and pops back down on cursor approach.
- Per-scene dialogue panel (fa-clock-rotate-left, matching the
in-game history affordance).
- "导入分享文件" entry on the empty/error state — accepts a friend's
.infiplot, posts to /api/gallery-unpack, renders the decrypted doc.
Share-file format (.infiplot):
- AES-256-GCM via Web Crypto (portable to Cloudflare Workers).
- Layout: 4-byte magic "IFPL" + 1-byte version + 12-byte nonce +
ciphertext (includes 16-byte auth tag).
- Key derived from GALLERY_SECRET via SHA-256.
- GCM's auth tag gives tamper-detection for free; any flip in the
ciphertext/nonce surfaces as "文件校验失败" — same error as wrong-key,
so the distinction can't leak server config.
- Stateless: server keeps no record of issued files.
- GALLERY_SECRET unset → /api/gallery-pack returns 503, the play page
silently skips the share-file download, local view still works.
Rotating the secret invalidates every previously-issued file.
Retention: trimGalleryExports keeps only the 2 most recent localStorage
docs; older ones are evicted before each write so quota stays flat
regardless of how many times the player exports. Share files live on
the player's own disk — no retention concern.
Adds 'gallery_export' to the analytics event schema (scene_count only —
no free text).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
yuanzonghao
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