docs/offline-knowledge-library-2026-06-13
1
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 Edison Jwa
|
aa796d7395 |
feat: file transfer system (avatar/icon download with cacache) (#40)
* docs(architecture): add file transfer design, research, and implementation plan * feat(cache): add chanora_cache crate with cacache-backed blob cache - New chanora_cache crate: content-addressed blob store wrapping cacache - BlobCache API: async put/get/remove/clear/total_size/evict - Key validation: av_ prefix (32 hex chars), ic_ prefix (decimal digits) - Cacache provides crash safety, SSRI integrity, content dedup - Mtime-based eviction via cacache::list_sync + sort by timestamp - 7 unit tests all passing - Added to workspace members * feat(protocol): add file download support for avatars and icons - Add Request::DownloadFile variant with oneshot reply - Add ProtocolClient::download_avatar(client_uid) and download_icon(icon_id) - Track pending file downloads by FiletransferHandle - Handle StreamItem::FileDownload: read bytes from TCP stream - Handle StreamItem::FiletransferFailed: map to ProtocolError - Add ProtocolError::FileTransfer(String) variant - Add path helper tests for avatar/icon download paths - No tsclientlib types leak across the adapter boundary * feat(core): add blob cache wiring and avatar download orchestration - Add chanora_cache dependency to Cargo.toml - Add blob_cache field to ChanoraSession (Arc<Mutex<Option<BlobCache>>>) - Add init_cache() method: creates BlobCache, runs eviction - Add get_avatar() method: cache-first, download on miss, store in cache - Add clear_cache() and cache_size() methods for cache management - Add CoreError::Cache variant for BlobCacheError conversion - Add avatar_cache integration test * feat(bridge): add init_cache, download_avatar, and cache management functions - Add init_cache(dir) bridge function - Add download_avatar(avatar_hash, client_uid) bridge function - Add clear_file_cache() and file_cache_size() bridge functions - Map CoreError::Cache and ProtocolError::FileTransfer in BridgeError * feat(flutter): add cache initialization wiring and avatar download shims - Add wireCache() to app_bootstrap using getApplicationCacheDirectory() - Call wireCache() after wireStorage() in main bootstrap flow - Add Dart-side initCache and downloadAvatar wrapper shims in api.dart - Update Cargo.lock for new chanora_cache dependency * feat(core): FileTransferService with coalescing, throttling, negative cache - New file_transfer module with FileTransferService struct - Semaphore(2) throttles concurrent downloads - In-flight HashMap coalesces duplicate avatar requests - 5-min negative cache short-circuits ServerRejected misses - ChanoraSession delegates get_avatar through the service - connect/disconnect update shared protocol handle - clear_cache/cache_size delegate to service - 2 new unit tests (cached hit, negative cache) * feat(core,bridge): add get_icon with coalescing and negative cache - FileTransferService::get_icon() mirrors get_avatar pattern - ChanoraSession::get_icon() delegates through FileTransferService - Bridge download_icon() exposed for Flutter - Dart downloadIcon() shim added - Uses PREFIX_ICON (ic_<crc32u>) cache key format - 1 new unit test (cached icon hit) * fix(core,protocol): simplify store_protocol and add download size cap - store_protocol: always write to shared Arc<Mutex<Option<ProtocolClient>>>; the FileTransferService holds the same Arc so it sees updates automatically - read_download_bytes: reject downloads exceeding 10 MB to prevent malicious servers from causing OOM |