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Tools: add HTTP/HTTPS proxy support for web_search and web_fetch #4047

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Tools: add HTTP/HTTPS proxy support for web_search and web_fetch #4047

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@toboto toboto commented Jan 29, 2026 •
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Summary

Add HTTP/HTTPS proxy support for web_search and web_fetch tools via standard environment variables HTTP_PROXY and HTTPS_PROXY.

Motivation

In certain network environments (e.g., mainland China), accessing international websites requires routing through proxy servers. Currently, the web_search and web_fetch tools do not support proxy configuration, causing these tools to fail in restricted network environments.

Changes

Core Modifications

  1. src/infra/net/ssrf.ts

    • Add createProxyAgent() function to read proxy configuration from environment variables
    • Modify createPinnedDispatcher() to prioritize proxy when configured
    • Note: When using proxy, SSRF protection is handled by the proxy server

  2. src/agents/tools/web-search.ts

    • Import and use createProxyAgent()
    • Add proxy dispatcher support for Brave Search and Perplexity API calls

  3. CHANGELOG.md

    • Add feature description

Design Rationale

  • Follows existing Telegram proxy implementation pattern (src/telegram/proxy.ts)
  • Uses undici's ProxyAgent
  • Supports standard environment variables: HTTP_PROXY, HTTPS_PROXY, http_proxy, https_proxy
  • Prioritizes HTTPS_PROXY, falls back to HTTP_PROXY
  • DRY principle: createProxyAgent() centrally implemented in ssrf.ts

Testing

Tested in the following environments:

  • ✅ Without proxy: Tools work normally, behavior unchanged
  • ✅ With proxy configured:
    • Domestic websites accessible normally
    • International websites (Google, Twitter, etc.) accessible through proxy
  • ✅ Build test: npm run build passes
  • ✅ Lint check: npm run lint - 0 warnings, 0 errors

Breaking Changes

No breaking changes. If proxy environment variables are not set, behavior is identical to previous version.

Additional Notes

  • The web_fetch tool automatically gains proxy support through createPinnedDispatcher()
  • Other tools using createPinnedDispatcher() also automatically gain proxy support
  • When using proxy, DNS resolution and SSRF protection are handled by the proxy server

🤖 Generated with Claude Code

@moltbot-barnacle moltbot-barnacle bot added the agents Agent runtime and tooling label Jan 29, 2026
@toboto toboto force-pushed the feat/proxy-support-web-tools branch from 3e8d7f1 to f3aaa11 Compare January 30, 2026 05:33
fix: resolve formatting and test issues from OpenClaw rebrand
1791308 
- Fix formatting in src/commands/onboard-helpers.ts (indentation)
- Update paths.test.ts to expect 16 config candidates (backward compatibility)
  - New: ~/.openclaw + legacy: ~/.clawdbot, ~/.moltbot, ~/.moldbot
  - Each dir checks 4 config filenames (openclaw.json + 3 legacy)
  - Total: 4 dirs × 4 filenames = 16 candidates
@moltbot-barnacle moltbot-barnacle bot added the commands Command implementations label Jan 30, 2026
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toboto commented Jan 30, 2026

CI Check Status Update

I've investigated and resolved the CI check failures that appeared after rebasing onto the latest main branch (OpenClaw rebrand).

✅ Fixed Issues

  1. Format check - Fixed indentation in src/commands/onboard-helpers.ts
  2. Test failure - Updated src/config/paths.test.ts to expect 16 config candidates instead of 1, reflecting the new backward compatibility design (4 directories × 4 config filenames)

Both fixes committed in: 1791308

⚠️ Remaining Issue (Not Related to This PR)

The Install Smoke check is still failing with:

curl: (6) Could not resolve host: clawd.bot

This appears to be a rebrand-related issue where the installer smoke test script still references the old clawd.bot domain (which now redirects to openclaw.ai). The DNS resolution is failing in the CI environment.

This issue is not caused by the proxy support changes in this PR. This PR only modifies:

  • src/infra/net/ssrf.ts
  • src/agents/tools/web-search.ts
  • CHANGELOG.md

The installer script domain reference would need to be updated separately as part of the OpenClaw rebrand cleanup.

All other checks (format, lint, build, protocol) are now passing successfully. The test checks are still running.

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