Boolean RTSPServerWithREGISTERProxying
::weImplementREGISTER(char const* cmd/*"REGISTER" or "DEREGISTER"*/,
char const* proxyURLSuffix, char*& responseStr) {
// First, check whether we have already proxied a stream as "proxyURLSuffix":
if (proxyURLSuffix != NULL) {
ServerMediaSession* sms = lookupServerMediaSession(proxyURLSuffix);
if ((strcmp(cmd, "REGISTER") == 0 && sms != NULL) ||
(strcmp(cmd, "DEREGISTER") == 0 && sms == NULL)) {
responseStr = strDup("451 Invalid parameter");
return False;
}
}
// Otherwise, we will implement it:
responseStr = NULL;
return True;
}
void RTSPServerWithREGISTERProxying
::implementCmd_REGISTER(char const* cmd/*"REGISTER" or "DEREGISTER"*/,
char const* url, char const* /*urlSuffix*/, int socketToRemoteServer,
Boolean deliverViaTCP, char const* proxyURLSuffix) {
// Continue setting up proxying for the specified URL.
// By default:
// - We use "registeredProxyStream-N" as the (front-end) stream name (ignoring the back-end stream's 'urlSuffix'),
// unless "proxyURLSuffix" is non-NULL (in which case we use that)
// - There is no 'username' and 'password' for the back-end stream. (Thus, access-controlled back-end streams will fail.)
// - If "fStreamRTPOverTCP" is True, then we request delivery over TCP, regardless of the value of "deliverViaTCP".
// (Otherwise, if "fStreamRTPOverTCP" is False, we use the value of "deliverViaTCP" to decide this.)
// To change this default behavior, you will need to subclass "RTSPServerWithREGISTERProxying", and reimplement this function.
char const* proxyStreamName;
char proxyStreamNameBuf[100];
if (proxyURLSuffix == NULL) {
sprintf(proxyStreamNameBuf, "registeredProxyStream-%u", ++fRegisteredProxyCounter);
proxyStreamName = proxyStreamNameBuf;
} else {
proxyStreamName = proxyURLSuffix;
}
if (strcmp(cmd, "REGISTER") == 0) {
if (fStreamRTPOverTCP) deliverViaTCP = True;
portNumBits tunnelOverHTTPPortNum = deliverViaTCP ? (portNumBits)(~0) : 0;
// We don't support streaming from the back-end via RTSP/RTP/RTCP-over-HTTP; only via RTP/RTCP-over-TCP or RTP/RTCP-over-UDP
ServerMediaSession* sms
= ProxyServerMediaSession::createNew(envir(), this, url, proxyStreamName,
fBackEndUsername, fBackEndPassword,
tunnelOverHTTPPortNum, fVerbosityLevelForProxying, socketToRemoteServer);
addServerMediaSession(sms);
// (Regardless of the verbosity level) announce the fact that we're proxying this new stream, and the URL to use to access it:
char* proxyStreamURL = rtspURL(sms);
envir() << "Proxying the registered back-end stream \"" << url << "\".\n";
envir() << "\tPlay this stream using the URL: " << proxyStreamURL << "\n";
delete[] proxyStreamURL;
} else { // "DEREGISTER"
deleteServerMediaSession(lookupServerMediaSession(proxyStreamName));
}
}
void RTSPServer::removeServerMediaSession(char const* streamName) {
removeServerMediaSession(lookupServerMediaSession(streamName));
}
