The data-root ini under %APPDATA%\Tencent\xwechat\config\*.ini is
observed to contain either a plain absolute path (e.g. D:\WeChatFiles)
or the literal token 'MyDocument:'. The token form is not a real
filesystem path, so detect_db_dir_impl() — which previously did
PathBuf::from(content).is_dir() — silently failed on it, even though
the user's Weixin data was sitting in their (possibly relocated)
Documents folder.
Empirically the token denotes 'the calling user's Documents folder'.
We resolve it via SHGetKnownFolderPath(FOLDERID_Documents), which
honours the standard Windows shell-folder redirect (HKCU User Shell
Folders\Personal), so users who moved Documents to e.g. D:\Documents
now auto-detect correctly.
Plain absolute paths still pass through unchanged.
Adds Win32_UI_Shell + Win32_System_Com features to the windows crate
(needed for SHGetKnownFolderPath and CoTaskMemFree).
Lays down the skeleton for聊天附件 (chat attachment) extraction. This commit
introduces the `attachment` module with:
- `attachment_id`: opaque base64url(json) round-trip handle for CLI/IPC. Carries
`(chat, local_id, create_time, kind)` — `local_id` alone is not unique
(实测同 chat 内最多 7 条同 local_id 的记录), so create_time is required for
disambiguation.
- `decoder/`: dispatch by 6B header magic. Three branches:
- `V2_MAGIC` → AES-128-ECB + raw + XOR (need image AES key)
- `V1_MAGIC` → AES-128-ECB with fixed key `cfcd208495d565ef` (= md5("0")[:16])
- else → legacy single-byte XOR with magic auto-detect
Manual ECB + PKCS7 unpad to avoid pulling in another crate.
- `resolver`: `message_resource.db` lookup chain
`username → ChatName2Id.rowid → MessageResourceInfo.packed_info → md5`
+ on-disk `.dat` selection (full > _h > _t) under
`<wxchat_base>/msg/attach/<md5(chat)>/<YYYY-MM>/Img/<md5>[_t|_h].dat`.
Honors `message_local_type % 2^32` to strip the high flag bits, and orders by
`message_create_time DESC` to handle local_id reuse.
- `image_key/`: stub trait + macOS / Windows placeholders. To be filled by
codex with the V2 image key extraction (kvcomm + brute-force on macOS, memory
scan on Windows).
V1 decoder ships with 6 unit tests covering every supported magic + the BMP
extra validation; resolver ships with packed_info parser + dat-file selection
tests; v2 decoder ships with header validation tests. 21 tests pass.
`cargo check` and `cargo check --target x86_64-pc-windows-gnu` both clean.
- server.rs: add handle_connection_windows for named pipe connections
- transport.rs: import CommandExt trait for creation_flags on Windows
- release.yml: mkdir -p before binary copy to npm bin dirs
jackwener
Icy-Cat
郭立lee