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37cecfc7b9
Add support for CURLOPT_READFUNCTION with WebSocket urls when *not* in connect-only mode, e.g. when using curl_multi_perform. Install the callback function and set CURLOPT_UPLOAD. Return CURL_READFUNC_PAUSE when having nothing more to send and unpause the transfer when more data is ready. This will send the read bytes in a WebSocket BINARY frame. Add support for this mode in the pytest "ws_data" client and have all tests run in 'curl_ws_send/recv' and 'peform' mode as well. Add `curl_ws_start_frame()`. Document, cover in libcurl-ws.md and explain the READFUNCTION mode for websockets. Add example `websocket-updown` for this. Closes #17683
66 lines
968 B
Plaintext
66 lines
968 B
Plaintext
<testcase>
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<info>
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<keywords>
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WebSockets
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</keywords>
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</info>
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#
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# Server-side
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<reply>
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<data nocheck="yes">
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HTTP/1.1 101 Switching to WebSockets swsclose
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Server: test-server/fake
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Upgrade: websocket
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Connection: Upgrade
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Sec-WebSocket-Accept: HkPsVga7+8LuxM4RGQ5p9tZHeYs=
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</data>
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# allow upgrade
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<servercmd>
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upgrade
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</servercmd>
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</reply>
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#
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# Client-side
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<client>
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# require Debug for the forced CURL_ENTROPY
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<features>
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Debug
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ws
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</features>
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<setenv>
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CURL_ENTROPY=12345678
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</setenv>
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<server>
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http
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</server>
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<name>
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WebSockets upgrade only
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</name>
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<command>
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-T . ws://%HOSTIP:%HTTPPORT/%TESTNUMBER
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</command>
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</client>
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#
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# Verify data after the test has been "shot"
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<verify>
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<protocol nocheck="yes">
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GET /%TESTNUMBER HTTP/1.1
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Host: %HOSTIP:%HTTPPORT
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User-Agent: curl/%VERSION
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Accept: */*
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Upgrade: websocket
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Connection: Upgrade
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Sec-WebSocket-Version: 13
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Sec-WebSocket-Key: NDMyMTUzMjE2MzIxNzMyMQ==
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</protocol>
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<errorcode>
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52
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</errorcode>
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</verify>
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</testcase>
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