Summary

Add Baijiahao (百家号) platform support, allowing users to sync articles to Baijiahao with one click.

Related Issue

Closes #

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Performance improvement
• Code refactoring
• Other (please describe):

Changes Made

• Added src/platforms/baijiahao.js - Baijiahao platform configuration file
• Registered Baijiahao platform in src/platforms/index.js
• Added Baijiahao to frontend platform list in src/inject.js
• Added Baijiahao login detection and content sync logic in src/background.js
• Added Baijiahao domain permissions in manifest.json

Implementation Details

Key Changes:

• Login detection: Uses BDUSS cookie to determine login status, calls https://baijiahao.baidu.com/builder/app/appinfo API to fetch username and avatar
• Content sync: Uses the same clipboard paste approach as WeChat Official Account to preserve original styling
  • Title: Filled using contenteditable div + execCommand
  • Body: Pasted via ClipboardEvent paste event into the UEditor iframe

Technical Notes:

• Baijiahao editor uses UEditor rich text editor with content inside an iframe
• Baijiahao API requires cookie authentication, /builder/app/appinfo endpoint returns user info directly
• Uses official icon: https://pic.rmb.bdstatic.com/10e1e2b43c35577e1315f0f6aad6ba24.vnd.microsoft.icon

Testing

Testing Checklist

• I have tested this code locally
• All existing tests pass
• I have added tests for new functionality
• I have tested on the affected platform(s)
• I have verified the changes work in the target browser(s)

Manual Testing Steps

1. Load the extension, open md.doocs.org or local editor
2. Click publish button, verify Baijiahao appears in the platform list
3. After logging into Baijiahao, verify login status correctly displays username and avatar
4. Select Baijiahao and click sync, verify title and content are correctly filled in Baijiahao editor

Screenshots/Videos

Reviewer Checklist

• Code follows the project's style guidelines
• Changes are well-documented
• No breaking changes or clearly documented if present
• Security implications have been considered
• Performance impact has been evaluated
• All discussions have been resolved

Additional Notes

Baijiahao publish page URL: https://baijiahao.baidu.com/builder/rc/edit?type=news