Inject SSL context into urllib3 ProxyManager, too #13343
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When a proxy is involved, requests uses a urllib3 proxy manager instead of the pool manager. We only inject our SSL context into the pool manager, which means the truststore context is lost when a proxy is set. We can modify proxy manager construction by overriding proxy_manager_for on the requests adapters.
uranusjr
approved these changes
Apr 22, 2025
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When a proxy is involved, requests uses a urllib3 proxy manager instead of the pool manager. We only inject our SSL context into the pool manager, which means the truststore context is lost when a proxy is set.
We can modify proxy manager construction by overriding
proxy_manager_foron the requests adapters as described here: psf/requests#6109 (comment)I have no idea how to write a test for this (at least for the time being), so @schribl I'd appreciate if you could check whether this fixes your issue or not. You can install this branch via
pip install https://github.com/ichard26/pip/archive/bug/lost-ssl-context.zip. No rush!Should fix #13288.