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fix(weixin): convert markdown links to plain text format - #7695

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tomqiaozc:user/Tom/fix-weixin-markdown-links

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Summary

  • Markdown link syntax [text](url) was passed through unmodified to WeChat's plain text renderer, causing URLs to be lost
  • Now converts to text (url) format, matching the Feishu adapter's approach
  • Link conversion respects code block boundaries — links inside fenced code blocks are preserved

Fixes #7617

Test plan

  • Updated existing test to expect converted link format
  • Added test for multiple links in one line
  • Added test verifying links inside code blocks are NOT converted

🤖 Generated with Claude Code

Markdown link syntax [text](url) was passed through unmodified,
causing URLs to be lost in WeChat's plain text renderer. Now
converts to "text (url)" format matching the Feishu adapter's
approach, while preserving links inside code blocks.

Fixes NousResearch#7617

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
teknium1 added a commit that referenced this pull request Apr 12, 2026
…essages

Four fixes for the Weixin/WeChat adapter, synthesized from the best
aspects of community PRs #8407, #8521, #8360, #7695, #8308, #8525,
#7531, #8144, #8251.

1. Streaming cursor (▉) stuck permanently — WeChat doesn't support
   message editing, so the cursor appended during streaming can never
   be removed.  Add SUPPORTS_MESSAGE_EDITING = False to WeixinAdapter
   and check it in gateway/run.py to use an empty cursor for non-edit
   platforms.  (Fixes #8307, #8326)

2. Media upload failures — two bugs in _send_file():
   a) upload_full_url path used PUT (404 on WeChat CDN); now uses POST.
   b) aes_key was base64(raw_bytes) but the iLink API expects
      base64(hex_string); images showed as grey boxes.  (Fixes #8352, #7529)
   Also: unified both upload paths into _upload_ciphertext(), preferring
   upload_full_url.  Added send_video/send_voice methods and voice_item
   media builder for audio/.silk files.  Added video_md5 field.

3. Markdown links stripped — WeChat can't render [text](url), so
   format_message() now converts them to 'text (url)' plaintext.
   Code blocks are preserved.  (Fixes #7617)

4. Blank message prevention — three guards:
   a) _split_text_for_weixin_delivery('') returns [] not ['']
   b) send() filters empty/whitespace chunks before _send_text_chunk
   c) _send_message() raises ValueError for empty text as safety net

Community credit: joei4cm (#8407), lyonDan (#8521), SKFDJKLDG (#8360),
tomqiaozc (#7695), joshleeeeee (#8308), luoxiao6645(#8525),
longsizhuo (#7531), Astral-Yang (#8144), QingWei-Li (#8251).
teknium1 added a commit that referenced this pull request Apr 12, 2026
…essages (#8665)

Four fixes for the Weixin/WeChat adapter, synthesized from the best
aspects of community PRs #8407, #8521, #8360, #7695, #8308, #8525,
#7531, #8144, #8251.

1. Streaming cursor (▉) stuck permanently — WeChat doesn't support
   message editing, so the cursor appended during streaming can never
   be removed.  Add SUPPORTS_MESSAGE_EDITING = False to WeixinAdapter
   and check it in gateway/run.py to use an empty cursor for non-edit
   platforms.  (Fixes #8307, #8326)

2. Media upload failures — two bugs in _send_file():
   a) upload_full_url path used PUT (404 on WeChat CDN); now uses POST.
   b) aes_key was base64(raw_bytes) but the iLink API expects
      base64(hex_string); images showed as grey boxes.  (Fixes #8352, #7529)
   Also: unified both upload paths into _upload_ciphertext(), preferring
   upload_full_url.  Added send_video/send_voice methods and voice_item
   media builder for audio/.silk files.  Added video_md5 field.

3. Markdown links stripped — WeChat can't render [text](url), so
   format_message() now converts them to 'text (url)' plaintext.
   Code blocks are preserved.  (Fixes #7617)

4. Blank message prevention — three guards:
   a) _split_text_for_weixin_delivery('') returns [] not ['']
   b) send() filters empty/whitespace chunks before _send_text_chunk
   c) _send_message() raises ValueError for empty text as safety net

Community credit: joei4cm (#8407), lyonDan (#8521), SKFDJKLDG (#8360),
tomqiaozc (#7695), joshleeeeee (#8308), luoxiao6645(#8525),
longsizhuo (#7531), Astral-Yang (#8144), QingWei-Li (#8251).
@teknium1

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Merged via PR #8665 which synthesizes the best fixes from ~25 community PRs into a single consolidated change. Your contribution (markdown link → plaintext conversion) was reviewed and informed the final implementation. Thank you @tomqiaozc for your work on this!

@teknium1 teknium1 closed this Apr 12, 2026
aj-nt pushed a commit to aj-nt/hermes-agent that referenced this pull request May 1, 2026
…essages (NousResearch#8665)

Four fixes for the Weixin/WeChat adapter, synthesized from the best
aspects of community PRs NousResearch#8407, NousResearch#8521, NousResearch#8360, NousResearch#7695, NousResearch#8308, NousResearch#8525,
NousResearch#7531, NousResearch#8144, NousResearch#8251.

1. Streaming cursor (▉) stuck permanently — WeChat doesn't support
   message editing, so the cursor appended during streaming can never
   be removed.  Add SUPPORTS_MESSAGE_EDITING = False to WeixinAdapter
   and check it in gateway/run.py to use an empty cursor for non-edit
   platforms.  (Fixes NousResearch#8307, NousResearch#8326)

2. Media upload failures — two bugs in _send_file():
   a) upload_full_url path used PUT (404 on WeChat CDN); now uses POST.
   b) aes_key was base64(raw_bytes) but the iLink API expects
      base64(hex_string); images showed as grey boxes.  (Fixes NousResearch#8352, NousResearch#7529)
   Also: unified both upload paths into _upload_ciphertext(), preferring
   upload_full_url.  Added send_video/send_voice methods and voice_item
   media builder for audio/.silk files.  Added video_md5 field.

3. Markdown links stripped — WeChat can't render [text](url), so
   format_message() now converts them to 'text (url)' plaintext.
   Code blocks are preserved.  (Fixes NousResearch#7617)

4. Blank message prevention — three guards:
   a) _split_text_for_weixin_delivery('') returns [] not ['']
   b) send() filters empty/whitespace chunks before _send_text_chunk
   c) _send_message() raises ValueError for empty text as safety net

Community credit: joei4cm (NousResearch#8407), lyonDan (NousResearch#8521), SKFDJKLDG (NousResearch#8360),
tomqiaozc (NousResearch#7695), joshleeeeee (NousResearch#8308), luoxiao6645(NousResearch#8525),
longsizhuo (NousResearch#7531), Astral-Yang (NousResearch#8144), QingWei-Li (NousResearch#8251).
02356abc pushed a commit to 02356abc/hermes-agent that referenced this pull request May 14, 2026
…essages (NousResearch#8665)

Four fixes for the Weixin/WeChat adapter, synthesized from the best
aspects of community PRs NousResearch#8407, NousResearch#8521, NousResearch#8360, NousResearch#7695, NousResearch#8308, NousResearch#8525,
NousResearch#7531, NousResearch#8144, NousResearch#8251.

1. Streaming cursor (▉) stuck permanently — WeChat doesn't support
   message editing, so the cursor appended during streaming can never
   be removed.  Add SUPPORTS_MESSAGE_EDITING = False to WeixinAdapter
   and check it in gateway/run.py to use an empty cursor for non-edit
   platforms.  (Fixes NousResearch#8307, NousResearch#8326)

2. Media upload failures — two bugs in _send_file():
   a) upload_full_url path used PUT (404 on WeChat CDN); now uses POST.
   b) aes_key was base64(raw_bytes) but the iLink API expects
      base64(hex_string); images showed as grey boxes.  (Fixes NousResearch#8352, NousResearch#7529)
   Also: unified both upload paths into _upload_ciphertext(), preferring
   upload_full_url.  Added send_video/send_voice methods and voice_item
   media builder for audio/.silk files.  Added video_md5 field.

3. Markdown links stripped — WeChat can't render [text](url), so
   format_message() now converts them to 'text (url)' plaintext.
   Code blocks are preserved.  (Fixes NousResearch#7617)

4. Blank message prevention — three guards:
   a) _split_text_for_weixin_delivery('') returns [] not ['']
   b) send() filters empty/whitespace chunks before _send_text_chunk
   c) _send_message() raises ValueError for empty text as safety net

Community credit: joei4cm (NousResearch#8407), lyonDan (NousResearch#8521), SKFDJKLDG (NousResearch#8360),
tomqiaozc (NousResearch#7695), joshleeeeee (NousResearch#8308), luoxiao6645(NousResearch#8525),
longsizhuo (NousResearch#7531), Astral-Yang (NousResearch#8144), QingWei-Li (NousResearch#8251).
waefrebeorn pushed a commit to waefrebeorn/slermes that referenced this pull request Jul 2, 2026
…essages (NousResearch#8665)

Four fixes for the Weixin/WeChat adapter, synthesized from the best
aspects of community PRs NousResearch#8407, NousResearch#8521, NousResearch#8360, NousResearch#7695, NousResearch#8308, NousResearch#8525,
NousResearch#7531, NousResearch#8144, NousResearch#8251.

1. Streaming cursor (▉) stuck permanently — WeChat doesn't support
   message editing, so the cursor appended during streaming can never
   be removed.  Add SUPPORTS_MESSAGE_EDITING = False to WeixinAdapter
   and check it in gateway/run.py to use an empty cursor for non-edit
   platforms.  (Fixes NousResearch#8307, NousResearch#8326)

2. Media upload failures — two bugs in _send_file():
   a) upload_full_url path used PUT (404 on WeChat CDN); now uses POST.
   b) aes_key was base64(raw_bytes) but the iLink API expects
      base64(hex_string); images showed as grey boxes.  (Fixes NousResearch#8352, NousResearch#7529)
   Also: unified both upload paths into _upload_ciphertext(), preferring
   upload_full_url.  Added send_video/send_voice methods and voice_item
   media builder for audio/.silk files.  Added video_md5 field.

3. Markdown links stripped — WeChat can't render [text](url), so
   format_message() now converts them to 'text (url)' plaintext.
   Code blocks are preserved.  (Fixes NousResearch#7617)

4. Blank message prevention — three guards:
   a) _split_text_for_weixin_delivery('') returns [] not ['']
   b) send() filters empty/whitespace chunks before _send_text_chunk
   c) _send_message() raises ValueError for empty text as safety net

Community credit: joei4cm (NousResearch#8407), lyonDan (NousResearch#8521), SKFDJKLDG (NousResearch#8360),
tomqiaozc (NousResearch#7695), joshleeeeee (NousResearch#8308), luoxiao6645(NousResearch#8525),
longsizhuo (NousResearch#7531), Astral-Yang (NousResearch#8144), QingWei-Li (NousResearch#8251).
prmartinow pushed a commit to prmartinow/hermes-agent that referenced this pull request Aug 26, 2026
…essages (NousResearch#8665)

Four fixes for the Weixin/WeChat adapter, synthesized from the best
aspects of community PRs NousResearch#8407, NousResearch#8521, NousResearch#8360, NousResearch#7695, NousResearch#8308, NousResearch#8525,
NousResearch#7531, NousResearch#8144, NousResearch#8251.

1. Streaming cursor (▉) stuck permanently — WeChat doesn't support
   message editing, so the cursor appended during streaming can never
   be removed.  Add SUPPORTS_MESSAGE_EDITING = False to WeixinAdapter
   and check it in gateway/run.py to use an empty cursor for non-edit
   platforms.  (Fixes NousResearch#8307, NousResearch#8326)

2. Media upload failures — two bugs in _send_file():
   a) upload_full_url path used PUT (404 on WeChat CDN); now uses POST.
   b) aes_key was base64(raw_bytes) but the iLink API expects
      base64(hex_string); images showed as grey boxes.  (Fixes NousResearch#8352, NousResearch#7529)
   Also: unified both upload paths into _upload_ciphertext(), preferring
   upload_full_url.  Added send_video/send_voice methods and voice_item
   media builder for audio/.silk files.  Added video_md5 field.

3. Markdown links stripped — WeChat can't render [text](url), so
   format_message() now converts them to 'text (url)' plaintext.
   Code blocks are preserved.  (Fixes NousResearch#7617)

4. Blank message prevention — three guards:
   a) _split_text_for_weixin_delivery('') returns [] not ['']
   b) send() filters empty/whitespace chunks before _send_text_chunk
   c) _send_message() raises ValueError for empty text as safety net

Community credit: joei4cm (NousResearch#8407), lyonDan (NousResearch#8521), SKFDJKLDG (NousResearch#8360),
tomqiaozc (NousResearch#7695), joshleeeeee (NousResearch#8308), luoxiao6645(NousResearch#8525),
longsizhuo (NousResearch#7531), Astral-Yang (NousResearch#8144), QingWei-Li (NousResearch#8251).
melon-xf added a commit to melon-xf/hermes-agent that referenced this pull request Sep 3, 2026
…essages (NousResearch#8665)

Four fixes for the Weixin/WeChat adapter, synthesized from the best
aspects of community PRs NousResearch#8407, NousResearch#8521, NousResearch#8360, NousResearch#7695, NousResearch#8308, NousResearch#8525,
NousResearch#7531, NousResearch#8144, NousResearch#8251.

1. Streaming cursor (▉) stuck permanently — WeChat doesn't support
   message editing, so the cursor appended during streaming can never
   be removed.  Add SUPPORTS_MESSAGE_EDITING = False to WeixinAdapter
   and check it in gateway/run.py to use an empty cursor for non-edit
   platforms.  (Fixes NousResearch#8307, NousResearch#8326)

2. Media upload failures — two bugs in _send_file():
   a) upload_full_url path used PUT (404 on WeChat CDN); now uses POST.
   b) aes_key was base64(raw_bytes) but the iLink API expects
      base64(hex_string); images showed as grey boxes.  (Fixes NousResearch#8352, NousResearch#7529)
   Also: unified both upload paths into _upload_ciphertext(), preferring
   upload_full_url.  Added send_video/send_voice methods and voice_item
   media builder for audio/.silk files.  Added video_md5 field.

3. Markdown links stripped — WeChat can't render [text](url), so
   format_message() now converts them to 'text (url)' plaintext.
   Code blocks are preserved.  (Fixes NousResearch#7617)

4. Blank message prevention — three guards:
   a) _split_text_for_weixin_delivery('') returns [] not ['']
   b) send() filters empty/whitespace chunks before _send_text_chunk
   c) _send_message() raises ValueError for empty text as safety net

Community credit: joei4cm (NousResearch#8407), lyonDan (NousResearch#8521), SKFDJKLDG (NousResearch#8360),
tomqiaozc (NousResearch#7695), joshleeeeee (NousResearch#8308), luoxiao6645(NousResearch#8525),
longsizhuo (NousResearch#7531), Astral-Yang (NousResearch#8144), QingWei-Li (NousResearch#8251).
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Weixin adapter strips markdown links [text](url) — links lost in delivery

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