srs-librtmp: implements handshake.

@@ -37,8 +37,7 @@ int main(int argc, char** argv)
     
     rtmp = srs_rtmp_create("rtmp://127.0.0.1:1935/live/show?vhost=__defaultVhost__/livestream");
     
-	//if (srs_simple_handshake(rtmp) != 0) {
-	if (srs_complex_handshake(rtmp) != 0) {
+ 	if (srs_simple_handshake(rtmp) != 0) {
 		printf("simple handshake failed.\n");
 		goto rtmp_destroy;
 	}

@@ -81,20 +81,17 @@ void SimpleSocketStream::set_recv_timeout(int64_t timeout_us)
 
 int64_t SimpleSocketStream::get_recv_timeout()
 {
-	int ret = ERROR_SUCCESS;
-	return ret;
+	return -1;
 }
 
 int64_t SimpleSocketStream::get_recv_bytes()
 {
-	int ret = ERROR_SUCCESS;
-	return ret;
+	return 0;
 }
 
 int SimpleSocketStream::get_recv_kbps()
 {
-	int ret = ERROR_SUCCESS;
-	return ret;
+	return 0;
 }
 
 // ISrsProtocolWriter
@@ -104,20 +101,17 @@ void SimpleSocketStream::set_send_timeout(int64_t timeout_us)
 
 int64_t SimpleSocketStream::get_send_timeout()
 {
-	int ret = ERROR_SUCCESS;
-	return ret;
+	return -1;
 }
 
 int64_t SimpleSocketStream::get_send_bytes()
 {
-	int ret = ERROR_SUCCESS;
-	return ret;
+	return 0;
 }
 
 int SimpleSocketStream::get_send_kbps()
 {
-	int ret = ERROR_SUCCESS;
-	return ret;
+	return 0;
 }
 
 int SimpleSocketStream::writev(const iovec *iov, int iov_size, ssize_t* nwrite)

@@ -170,6 +170,10 @@ int srs_simple_handshake(srs_rtmp_t rtmp)
 	srs_freep(context->rtmp);
 	context->rtmp = new SrsRtmpClient(context->skt);
 	
+	if ((ret = context->rtmp->simple_handshake()) != ERROR_SUCCESS) {
+		return ret;
+	}
+	
 	return ret;
 }
 
@@ -197,6 +201,14 @@ int srs_publish_stream(srs_rtmp_t rtmp)
 	return ERROR_SUCCESS;
 }
 
+int srs_ssl_enabled()
+{
+#ifndef SRS_SSL
+	return false;
+#endif
+	return true;
+}
+
 int srs_version_major()
 {
 	return ::atoi(VERSION_MAJOR);

@@ -66,7 +66,10 @@ void srs_rtmp_destroy(srs_rtmp_t rtmp);
 int srs_simple_handshake(srs_rtmp_t rtmp);
 /**
 * complex handshake is specified by adobe Flash player,
-* depends on ssl, user must link libssl.a and libcrypt.a
+* depends on ssl, user must compile srs with ssl, then
+* link user program libssl.a and libcrypt.a
+* @remark user can use srs_ssl_enabled() to detect 
+* whether ssl is ok.
 */
 int srs_complex_handshake(srs_rtmp_t rtmp);
 
@@ -98,6 +101,14 @@ int srs_play_stream(srs_rtmp_t rtmp);
 int srs_publish_stream(srs_rtmp_t rtmp);
 
 /**
+* whether srs is compiled with ssl,
+* that is, compile srs with ssl: ./configure --with-ssl,.
+* if no ssl, complex handshake always error.
+* @return 0 for false, otherwise, true.
+*/
+int srs_ssl_enabled();
+
+/**
 * get protocol stack version
 */
 int srs_version_major();

@@ -1067,7 +1067,7 @@ SrsSimpleHandshake::~SrsSimpleHandshake()
 {
 }
 
-int SrsSimpleHandshake::handshake_with_client(ISrsProtocolReaderWriter* skt, SrsComplexHandshake& complex_hs)
+int SrsSimpleHandshake::handshake_with_client(ISrsProtocolReaderWriter* skt, SrsComplexHandshake* complex_hs)
 {
 	int ret = ERROR_SUCCESS;
 	
@@ -1090,16 +1090,18 @@ int SrsSimpleHandshake::handshake_with_client(ISrsProtocolReaderWriter* skt, Srs
     srs_verbose("check c0 success, required plain text.");
     
     // try complex handshake
-    ret = complex_hs.handshake_with_client(skt, c0c1 + 1);
-    if (ret == ERROR_SUCCESS) {
-	    srs_trace("complex handshake success.");
-	    return ret;
+    if (complex_hs) {
+	    ret = complex_hs->handshake_with_client(skt, c0c1 + 1);
+	    if (ret == ERROR_SUCCESS) {
+		    srs_trace("complex handshake success.");
+		    return ret;
+	    }
+	    if (ret != ERROR_RTMP_TRY_SIMPLE_HS) {
+		    srs_error("complex handshake failed. ret=%d", ret);
+	    	return ret;
+	    }
+	    srs_info("rollback complex to simple handshake. ret=%d", ret);
     }
-    if (ret != ERROR_RTMP_TRY_SIMPLE_HS) {
-	    srs_error("complex handshake failed. ret=%d", ret);
-    	return ret;
-    }
-    srs_info("rollback complex to simple handshake. ret=%d", ret);
 	
 	char* s0s1s2 = new char[3073];
 	srs_random_generate(s0s1s2, 3073);
@@ -1125,21 +1127,23 @@ int SrsSimpleHandshake::handshake_with_client(ISrsProtocolReaderWriter* skt, Srs
 	return ret;
 }
 
-int SrsSimpleHandshake::handshake_with_server(ISrsProtocolReaderWriter* skt, SrsComplexHandshake& complex_hs)
+int SrsSimpleHandshake::handshake_with_server(ISrsProtocolReaderWriter* skt, SrsComplexHandshake* complex_hs)
 {
 	int ret = ERROR_SUCCESS;
     
     // try complex handshake
-    ret = complex_hs.handshake_with_server(skt);
-    if (ret == ERROR_SUCCESS) {
-	    srs_trace("complex handshake success.");
-	    return ret;
-    }
-    if (ret != ERROR_RTMP_TRY_SIMPLE_HS) {
-	    srs_error("complex handshake failed. ret=%d", ret);
-    	return ret;
+    if (complex_hs) {
+	    ret = complex_hs->handshake_with_server(skt);
+	    if (ret == ERROR_SUCCESS) {
+		    srs_trace("complex handshake success.");
+		    return ret;
+	    }
+	    if (ret != ERROR_RTMP_TRY_SIMPLE_HS) {
+		    srs_error("complex handshake failed. ret=%d", ret);
+	    	return ret;
+	    }
+	    srs_info("rollback complex to simple handshake. ret=%d", ret);
     }
-    srs_info("rollback complex to simple handshake. ret=%d", ret);
 	
 	// simple handshake
     ssize_t nsize;

@@ -45,10 +45,11 @@ public:
 	/**
 	* simple handshake.
 	* @param complex_hs, try complex handshake first, 
+	* 		if NULL, use simple handshake.
 	* 		if failed, rollback to simple handshake.
 	*/
-	virtual int handshake_with_client(ISrsProtocolReaderWriter* io, SrsComplexHandshake& complex_hs);
-	virtual int handshake_with_server(ISrsProtocolReaderWriter* io, SrsComplexHandshake& complex_hs);
+	virtual int handshake_with_client(ISrsProtocolReaderWriter* io, SrsComplexHandshake* complex_hs);
+	virtual int handshake_with_server(ISrsProtocolReaderWriter* io, SrsComplexHandshake* complex_hs);
 };
 
 /**

@@ -233,13 +233,31 @@ int SrsRtmpClient::handshake()
     
     SrsComplexHandshake complex_hs;
     SrsSimpleHandshake simple_hs;
-    if ((ret = simple_hs.handshake_with_server(io, complex_hs)) != ERROR_SUCCESS) {
+    if ((ret = simple_hs.handshake_with_server(io, &complex_hs)) != ERROR_SUCCESS) {
         return ret;
     }
     
     return ret;
 }
 
+int SrsRtmpClient::simple_handshake()
+{
+	int ret = ERROR_SUCCESS;
+    
+    SrsSimpleHandshake simple_hs;
+    if ((ret = simple_hs.handshake_with_server(io, NULL)) != ERROR_SUCCESS) {
+        return ret;
+    }
+    
+    return ret;
+}
+
+int SrsRtmpClient::complex_handshake()
+{
+	// TODO: FIXME: only use complex handshake.
+    return handshake();
+}
+
 int SrsRtmpClient::connect_app(string app, string tc_url)
 {
 	int ret = ERROR_SUCCESS;
@@ -495,7 +513,7 @@ int SrsRtmp::handshake()
     
     SrsComplexHandshake complex_hs;
     SrsSimpleHandshake simple_hs;
-    if ((ret = simple_hs.handshake_with_client(io, complex_hs)) != ERROR_SUCCESS) {
+    if ((ret = simple_hs.handshake_with_client(io, &complex_hs)) != ERROR_SUCCESS) {
         return ret;
     }
     

@@ -128,7 +128,12 @@ public:
 	virtual int recv_message(SrsCommonMessage** pmsg);
 	virtual int send_message(ISrsMessage* msg);
 public:
+	// try complex, then simple handshake.
 	virtual int handshake();
+	// only use simple handshake
+	virtual int simple_handshake();
+	// only use complex handshake
+	virtual int complex_handshake();
 	virtual int connect_app(std::string app, std::string tc_url);
 	virtual int create_stream(int& stream_id);
 	virtual int play(std::string stream, int stream_id);