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fix: node 18 urllib 3 maxRedirections#5428

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akitaSummer wants to merge 1 commit into3.xfrom
fix/node_18_urllib
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fix: node 18 urllib 3 maxRedirections#5428
akitaSummer wants to merge 1 commit into3.xfrom
fix/node_18_urllib

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Summary of Changes

Hello @akitaSummer, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a compatibility issue with HTTP redirection handling in urllib when operating within a Node.js 18 environment. It introduces a targeted configuration that delegates the responsibility of managing redirects to undici's built-in capabilities, thereby ensuring proper request flow and preventing potential errors. The changes are validated by a new dedicated test case.

Highlights

  • Node.js 18 Redirection Compatibility: Implemented a specific workaround for HTTP redirection handling when running on Node.js 18. This involves explicitly disabling urllib's internal redirection logic and instead configuring undici's global dispatcher with a redirect interceptor to manage redirections.
  • New Dependency: Added undici as a direct dependency to facilitate the new redirection handling mechanism for Node.js 18 environments.
  • Test Coverage: Introduced a new test case to verify that maxRedirections functions correctly and does not throw errors when running on Node.js 18, ensuring the fix behaves as expected.
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Code Review

This pull request addresses a compatibility issue with urllib on Node.js 18 by using undici for handling redirects. The implementation modifies a global state on every request, which could lead to performance problems and memory leaks. A fix has been suggested. Additionally, improvements to the test suite have been recommended to ensure the redirection logic is more thoroughly verified.

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codecov bot commented Jul 21, 2025

Codecov Report

❌ Patch coverage is 50.00000% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 99.26%. Comparing base (e1c45db) to head (d220752).
⚠️ Report is 1 commits behind head on 3.x.

Files with missing lines Patch % Lines
lib/core/httpclient_next.js 50.00% 8 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##              3.x    #5428      +/-   ##
==========================================
- Coverage   99.58%   99.26%   -0.33%     
==========================================
  Files          36       36              
  Lines        3653     3669      +16     
  Branches      545      544       -1     
==========================================
+ Hits         3638     3642       +4     
- Misses         15       27      +12     

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@akitaSummer akitaSummer force-pushed the fix/node_18_urllib branch 3 times, most recently from f908035 to f1c7c2b Compare July 22, 2025 07:10
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socket-security bot commented Jul 22, 2025

No dependency changes detected. Learn more about Socket for GitHub.

👍 No dependency changes detected in pull request

@akitaSummer akitaSummer force-pushed the fix/node_18_urllib branch 2 times, most recently from df66625 to 1e5ed78 Compare July 22, 2025 07:29
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