Ensure no blank Sec-Websocket-Protocol headers and warn if websocket subprotocol edge case occur
#458
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@consideRatio I merged |
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Sec-Websocket-Protocol headers and warn about other websocket issues
consideRatio
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Sec-Websocket-Protocol headers and warn about other websocket issuesSec-Websocket-Protocol headers and warn about another websocket issue
consideRatio
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Sec-Websocket-Protocol headers and warn about another websocket issueSec-Websocket-Protocol headers and warn if websocket subprotocol edge case occur
minrk
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Feb 23, 2024
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Rebased to be put on top of #457 not bundled with this PR but with commits now in main. |
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I was able to confirm this fixed our issue on the NASA side (FYI @zoghbi-a)! Thanks so much @consideRatio for patching this bug and @benz0li for helping with the investigation! Glad to see a powerful example of open source community coming together to fix this issue :) We look forward to the 4.1.1 release! |
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This PR ensures we don't pass a blank
Sec-Websocket-Protocolheader (Sending a blank header is incorrect) when we proxy a websocket. This fixes #442, fixes #445, is assumed to fix #332, and closes #448.This project currently proxies websockets by first accepting an incomming websocket connection were a subprotocol is established, and then opening a websocket connection to a server to proxy to. This is a problem and can lead to bugs that we now warn about. This PR adds tests to document our current problematic handling.
Thank you @duytnguyendtn, @zoghbi-a, and @benz0li for working this - this is building a lot on their investigation and conclusions, which were critical as I didn't understand much about this before.