PR #59431: fix(feishu): correct Chinese filename encoding in attachments

• Repository: openclaw/openclaw
• Author: DoChaoing
• State: open | merged: False
• Link: https://github.com/openclaw/openclaw/pull/59431

Description (problem / solution / changelog)

Fixes #59409

Summary

When receiving files with Chinese filenames via Feishu webhook, the filenames were displayed as garbled text (Latin-1 decoded UTF-8 bytes).

Root Cause

• HTTP headers are typically parsed as ISO-8859-1 (Latin-1)
• UTF-8 encoded filenames get misinterpreted as Latin-1 characters
• Example: 六大组件全解析.md shows as å_å_ç_ä_å_è_æ.md

Solution

• Added fixMisdecodedUtf8() function to detect and correct the encoding
• Re-encodes Latin-1 chars back to bytes and decodes as UTF-8
• Applied to both Content-Disposition header and API response file_name field

Test Plan

1. Send a file with Chinese filename via Feishu chat
2. Check the saved file in ~/.openclaw/media/inbound/
3. Verify filename is preserved correctly (e.g., 六大组件全解析---<uuid>.md)

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Changed files

• extensions/feishu/src/media.ts (modified, +55/-2)

PR #59467: [codex] Fix Feishu attachment filename decoding

• Repository: openclaw/openclaw
• Author: lawrence3699
• State: open | merged: False
• Link: https://github.com/openclaw/openclaw/pull/59467

Description (problem / solution / changelog)

Summary

This fixes Feishu inbound attachment filenames being decoded as Latin-1 mojibake when the server returns UTF-8 bytes through the plain filename= path.

Root Cause

The download metadata path already handled RFC5987-style filename*= values, but plain filename= values were passed through as-is. When Feishu returned UTF-8 bytes that had already been interpreted as Latin-1, OpenClaw preserved the mojibake instead of recovering the intended UTF-8 filename.

Changes

• keep filename*= as the highest-priority decode path
• add a conservative Latin-1 -> UTF-8 recovery path for plain filename= values
• avoid rewriting ASCII names or already-correct Unicode names
• add regression coverage for ASCII, RFC5987, mojibake recovery, and already-correct Unicode filenames

Validation

• pnpm exec vitest run extensions/feishu/src/media.test.ts

Fixes #59409

Changed files

• extensions/feishu/src/media.test.ts (modified, +74/-0)
• extensions/feishu/src/media.ts (modified, +21/-3)