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<p class="MsoNormal"><span lang="EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I found some behavior in proxyServer that might be a bug. It can be reproduced on latest version on live555 library.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">If I specify username and password with -u command line argument then<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">OPTIONS keepalive request is sent without Authorization header.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">And subsequent requests (e.g. PAUSE or TEARDOWN) are also sent without authorization info.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">If server requires every request to be authorized than such request breaks session.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">If I supply username and password in the url then OPTIONS request is sent with Authorization header and
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">everything works fine.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have found that described behavior could be caused by next lines of code:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> unsigned RTSPClient::sendOptionsCommand(responseHandler* responseHandler, Authenticator* authenticator) {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> if (authenticator != NULL) fCurrentAuthenticator = *authenticator;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> return sendRequest(new RequestRecord(++fCSeq, "OPTIONS", responseHandler));<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">If username and password are supplied with -u command line argument then authenticator passed to this method is not null<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">and it replaces valid (filled with realm, nonce etc.) fCurrentAuthenticator.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Suggested fix is to replace if statement with<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> if (fCurrentAuthenticator < authenticator) fCurrentAuthenticator = *authenticator;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">similarly to other send... methods of RTSPClient. But I am not sure this is the best way to handle this situation.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Is there a reason to handle OPTIONS request differently of other requests?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Here is rtsp exchange:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Request: DESCRIBE rtsp://10.41.170.250:554/PSIA/streaming/channels/102 RTSP/1.0\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CSeq: 86\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> User-Agent: ProxyRTSPClient (LIVE555 Streaming Media v2018.12.14)\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Accept: application/sdp\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> \r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Response: RTSP/1.0 401 Unauthorized\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CSeq: 86\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> WWW-Authenticate: Digest realm="9d321e21c4dd9bd63b1a80bd", nonce="867e523c35", algorithm="MD5"\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> WWW-Authenticate: Basic realm="/"\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> \r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Request: DESCRIBE rtsp://10.41.170.250:554/PSIA/streaming/channels/102 RTSP/1.0\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CSeq: 87\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Authorization: Digest username="admin", realm="9d321e21c4dd9bd63b1a80bd", nonce="867e523c35", uri="rtsp://10.41.170.250:554/PSIA/streaming/channels/102", response="01e817521210b74227b60711cf079ca4"\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> User-Agent: ProxyRTSPClient (LIVE555 Streaming Media v2018.12.14)\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Accept: application/sdp\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> \r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Response: RTSP/1.0 200 OK\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CSeq: 87\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Content-type: application/sdp<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Content-length: 518<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Date: Thu, 23 Apr 2020 09:22:37 GMT\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> \r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Session Description Protocol<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Request: SETUP rtsp://10.41.170.250:554/PSIA/streaming/channels/102/trackID=video RTSP/1.0\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CSeq: 88\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Authorization: Digest username="admin", realm="9d321e21c4dd9bd63b1a80bd", nonce="867e523c35", uri="rtsp://10.41.170.250:554/PSIA/streaming/channels/102", response="197123fa4219c96a2e4b8d7ade28f3a4"\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> User-Agent: ProxyRTSPClient (LIVE555 Streaming Media v2018.12.14)\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Transport: RTP/AVP/TCP;unicast;interleaved=28-29<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> \r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Response: RTSP/1.0 200 OK\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Session: 258361686;timeout=60<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Transport: RTP/AVP/TCP;unicast;interleaved=28-29;ssrc=f664956<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CSeq: 88\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Accept-Ranges: NPT\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Media-Properties: No-Seeking, Time-Progressing, Time-Duration=0\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Date: Thu, 23 Apr 2020 09:22:38 GMT\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> \r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Request: PLAY rtsp://10.41.170.250:554/PSIA/streaming/channels/102 RTSP/1.0\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CSeq: 89\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Authorization: Digest username="admin", realm="9d321e21c4dd9bd63b1a80bd", nonce="867e523c35", uri="rtsp://10.41.170.250:554/PSIA/streaming/channels/102", response="e11c9fb29d110e853a5ea54402114bd4"\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> User-Agent: ProxyRTSPClient (LIVE555 Streaming Media v2018.12.14)\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Session: 258361686<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> \r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Response: RTSP/1.0 200 OK\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Session: 258361686<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CSeq: 89\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Date: Thu, 23 Apr 2020 09:22:38 GMT\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> \r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Request: OPTIONS rtsp://10.41.170.250:554/PSIA/streaming/channels/102 RTSP/1.0\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CSeq: 90\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> User-Agent: ProxyRTSPClient (LIVE555 Streaming Media v2018.12.14)\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Session: 258361686<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> \r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Request: TEARDOWN rtsp://10.41.170.250:554/PSIA/streaming/channels/102 RTSP/1.0\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CSeq: 91\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> User-Agent: ProxyRTSPClient (LIVE555 Streaming Media v2018.12.14)\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Session: 258361686<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> \r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Response: RTSP/1.0 401 Unauthorized\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CSeq: 91\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> WWW-Authenticate: Digest realm="9d321e21c4dd9bd63b1a80bd", nonce="913dd31768", algorithm="MD5"\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> WWW-Authenticate: Basic realm="/"\r\n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span>\r\n<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<span lang="EN-US">,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Alexander Prokhorov<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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