For scale: payload bytes go browser → R2 → browser; the api handles keys,
authz and metadata only, so a cheap box can serve thousands of users.
- SPENC2 frame (browser-sealed, P-256 ECDH → HKDF wrap of a per-file CEK,
10 MiG AES-GCM segments): storage.ts gains the reader (magic-branched
getObject), presignPut/headObject, openDirectHeader; sealForDirect is the
reference sealer for cross-implementation tests
- Files API: GET /files/direct/config, POST /files/direct/init (presigned
PUT), POST /files/direct/complete (HEAD-gated commit), POST
/files/:id/direct-download (presigned GET + CEK ticket)
- web: lib/direct-storage (WebCrypto seal/open), lib/files-direct (flows),
dropzone rewritten with a multi-file sequential queue (per-file status,
direct-first with server fallback), file download decrypts in-browser for
direct objects (falls back to streaming)
- video dropzone wired to the chunked ingest API (>10 MiB → init/chunk/
complete), fixing the Cloudflare ~100 MB body cap for large videos
- DIRECT_EC_PRIVATE_KEY (P-256, PKCS8 b64) wired through compose; cross-impl
roundtrip tests prove web-seal ↔ server-open byte compatibility
Files payloads moved to R2 in 041; this removes the remaining oCIS coupling:
- delete the oCIS WebDAV client; verifyWhileStreaming moves to its own
storage-agnostic module (verify-stream.ts)
- group-files: storage_key is the only payload source; legacy rows answer
'retired storage' instead of touching oCIS
- collective share: the ocis-resource item kind is gone (peertube links stay);
share-into-library was R2-backed since the previous commit
- import-drive endpoint removed (no web caller); import-chat (homeserver) stays
- web: Drive tab + embedded oCIS page removed; Library is the Files view
Legacy e2e rows (2) deleted; every remaining archive row is R2-backed.
The Files tab was the only payload path not on object storage, violating the
2026-10-06 directive (object storage is the ONLY media I/O path) — and oCIS's
WebDAV surface is currently 500ing server-side, which made every upload fail.
Uploads now seal + dedupe into R2 via StorageService (SPENC1, content-
addressed); downloads read R2 when storage_key is set, falling back to oCIS
for legacy rows. Share-into-library copies oCIS Drive sources into R2 and
records the real sha256 instead of a placeholder. Migration 041 adds
chat_media_archive.storage_key.
- group-files: origin filter facet; GET /files/:id returns 410 for unavailable
rows after the ACL recheck; fix latent group_members.status filter and unbound
workspace parameter that would 500 listFiles
- archive-bot: markRedacted revokes live group_file_shares rows in-transaction
- new live-DB integration suite for the archive index surface
page.tsx now calls the real backend: GET /files with groupId/name/mimeClass/
cursor/limit (origin filter dropped — the api has no origin param), shares
tracked as ShareCreated (revoke by id), retention mapped to the orthogonal
legalHold model, downloads by item.name, samples reshaped to the wire
contract.
GroupFile gains mimeClass (the indexed coarse class the row icon and the
filter depend on): core contract, service row mapper, parseGroupFile guard,
test fixture, UI types — one vocabulary end to end. parseGroupFile's roomId
becomes null-tolerant to match direct-upload rows (mapping input stays
strict).
Verified: core build clean, api typecheck 0 errors + group-files 22/22,
web typecheck 0 errors.
Wires the three parallel group-cloud tracks to one surface and fixes the
seams between them:
- chat_media_archive.room_id becomes nullable (direct web uploads have no
Matrix room yet — the contract's null-event pattern extends to the room);
core GroupFile.roomId and ArchiveEntryInput.roomId follow.
- mime_class gains 'archive' (zip) across the 029 CHECK, validation
MIME_CLASSES and the bot classifier — one vocabulary everywhere.
- registerArchiveEntry claim keys are null-safe for room-less uploads.
- New: POST /files/groups/:groupId/upload — FileInterceptor (20 MiB) streams
through magic-byte sniffing, library-safe naming, oCIS upload and the
metadata index, behind group-membership ACL (Owner/Admin bypass).
- safeFileName/sniffMime promoted to packages/core (file-names.ts,
file-mime.ts) so the bot and the api share one implementation; the bot's
local modules become re-export shims; @types/node added to core.
Verified: api typecheck clean, group-files 22/22, bot 74/74, web typecheck
clean; 029 re-applied clean on a fresh scratch DB (room_id nullable,
archive class, claim_key unique all confirmed in the catalog).
