Confirmed against the real deployed server: Cloudflare Tunnel's free
tier caps request bodies at ~100MB and returns a plain 413 - a direct
LAN upload of the same 250MB test file succeeds, the identical request
through yaris.ceaf.dev does not. Real dashcam clips average ~320MB, so
no dashcam video could ever complete an upload through the tunnel as
it stood, regardless of the earlier memory-streaming fix.
Server: new /api/v1/dashcam/upload/chunk (accepts one chunk at a time,
keyed by relative_path+sha256+chunk_index/total_chunks, reassembles and
verifies the sha256 once every chunk has arrived) and
/api/v1/dashcam/upload/status (reports which chunk indices a given
upload already has, or "already_uploaded" if it's done) endpoints.
Chunks are staged under STORAGE_DIR/.upload_tmp/<device>/<sha256>/ and
cleaned up after reassembly; a stale partial set left by a differently
-chunked earlier attempt is detected via a small marker file and wiped
before restarting. The original single-shot /upload endpoint is left
in place unchanged.
Client (modules/app_upload.py): _upload_dashcam_files() now calls
_upload_video_chunked(), which checks /status first (so a prior
partial upload resumes instead of restarting from byte 0) and then
POSTs any missing 40MB chunks (DASHCAM_CHUNK_SIZE, comfortably under
Cloudflare's cap) via the same streaming MultipartEncoder approach as
before.
Co-authored-by: Copilot <[email protected]>
