Wrote rtmpSetupUrl, but need to test

rtmp/rtmp.go

@@ -146,6 +146,18 @@ var setDataFrame = AVC("@setDataFrame")
 
 var packetSize = [...]int{12, 8, 4, 1}
 
+var RTMPProtocolStringsLower = [...]string{
+	"rtmp",
+	"rtmpt",
+	"rtmpe",
+	"rtmpte",
+	"rtmps",
+	"rtmpts",
+	"",
+	"",
+	"rtmfp",
+}
+
 // Session provides an interface for sending flv tags over rtmp.
 type Session interface {
 	Open() error
@@ -318,13 +330,40 @@ func (s *session) Open() error {
 	return nil
 }
 
+// Close terminates the rtmp connection
+func (s *session) Close() error {
+	if s.rtmp == nil {
+		return Err(3)
+	}
+	ret := endSession(s.rtmp)
+	s.rtmp = nil
+	if ret != 0 {
+		return Err(ret)
+	}
+	return nil
+}
+
+// Write writes a frame (flv tag) to the rtmp connection
+func (s *session) Write(data []byte) (int, error) {
+	if s.rtmp == nil {
+		return 0, Err(3)
+	}
+	if C.RTMP_IsConnected(s.rtmp) == 0 {
+		return 0, Err(1)
+	}
+	//if C.RTMP_Write(s.rtmp,(*C.char)(unsafe.Pointer(&data[0])),C.int(len(data))) == 0 {
+	if rtmpWrite(s.rtmp, data) == 0 {
+		return 0, Err(2)
+	}
+	return len(data), nil
+}
+
 func startSession(rtmp *C.RTMP, u string, timeout uint32) (*C.RTMP, error) {
-	url := C.CString(u)
 	connect_timeout := C.int(timeout)
 	rtmp = rtmpAlloc()
 	rtmpInit(rtmp)
 	rtmp.Link.timeout = connect_timeout
-	if C.RTMP_SetupURL(rtmp, url) == 0 {
+	if rtmpSetupUrl(rtmp, u) == 0 {
 		C.RTMP_Close(rtmp)
 		C.RTMP_Free(rtmp)
 		return nil, errors.New("rtmp startSession: Failed to setup URL!")
@@ -366,17 +405,75 @@ func rtmpInit(r *C.RTMP) {
 	r.Link.swfAge = 30
 }
 
-// Close terminates the rtmp connection
-func (s *session) Close() error {
-	if s.rtmp == nil {
-		return Err(3)
+func rtmpSetupUrl(r *C.RTMP, u string) int32 {
+	length := len(u)
+	url := goStrToCStr(u)
+
+	var opt, arg AVal
+	var p1, p2 *byte
+	ptr := strchr(url, byte(' '))
+	var ret, len int32
+	var port uint32
+	port = 0
+
+	len = strlen(url)
+	ret = int32(C.RTMP_ParseURL((*C.char)(unsafe.Pointer(url)), &r.Link.protocol, &r.Link.hostname,
+		(*C.uint)(&port), &r.Link.playpath0, &r.Link.app))
+
+	if ret == 0 {
+		return ret
 	}
-	ret := endSession(s.rtmp)
-	s.rtmp = nil
-	if ret != 0 {
-		return Err(ret)
+
+	r.Link.port = C.ushort(port)
+	r.Link.playpath = r.Link.playpath0
+
+	if r.Link.tcUrl.av_len == 0 {
+		r.Link.tcUrl.av_val = url
+		if r.Link.app.av_len != 0 {
+			if int(uintptr(unsafe.Pointer(r.Link.app.av_val))) <
+				int(uintptr(incBytePtr(url, len))) {
+
+				r.Link.tcUrl.av_len = r.Link.app.av_len +
+					int(uintptr(decBytePtr(r.Link.app.av_val, int(uintptr(unsafe.Pointer(url))))))
+			} else {
+				len = r.Link.hostname.av_len + r.Link.app.av_len +
+					int(unsafe.Sizeof("rtmpte://:65535/"))
+
+				r.Link.tcUrl.av_val = (*C.char)(allocate(uintptr(len)))
+				hostname := string(ptrToSlice(unsafe.Pointer(r.Link.hostname.av_val),
+					int(r.Link.hostname.av_len)))
+
+				app := string(ptrToSlice(unsafe.Pointer(r.Link.app.av_val),
+					int(r.Link.app.av_len)))
+
+				fString := fmt.Sprintf("%v://%v:%v/%v",
+					RTMPProtocolStringsLower[r.Link.protocol], hostname, r.Link.port, app)
+
+				r.Link.tcUrl.av_val = (*C.char)(goStrToCStr(fString))
+				r.Link.tcUrl.av_len = len(RTMPProtocolStringsLower[r.Link.protocol]) +
+					len(string("://")) + len(hostname) + len(string(":")) +
+					len(strconv.Itoa(int(r.Link.port))) + len(string("/")) + len(app)
+
+				r.Link.lFlags |= RTMP_LF_FTCU
 			}
-	return nil
+		} else {
+			r.Link.tcUrl.av_len = strlen(url)
+		}
+	}
+
+	C.SocksSetup(r, &r.Link.sockshost)
+
+	if r.Link.port == 0 {
+		switch {
+		case r.Link.Protocol & RRTMP_FEATURE_SSL:
+			r.Link.port = 433
+		case r.Link.protocol & RTMP_FEATURE_HTTP:
+			r.Link.port = 80
+		default:
+			r.Link.port = 1935
+		}
+	}
+	return 1
 }
 
 func endSession(rtmp *C.RTMP) uint32 {
@@ -389,21 +486,6 @@ func endSession(rtmp *C.RTMP) uint32 {
 	return 0
 }
 
-// Write writes a frame (flv tag) to the rtmp connection
-func (s *session) Write(data []byte) (int, error) {
-	if s.rtmp == nil {
-		return 0, Err(3)
-	}
-	if C.RTMP_IsConnected(s.rtmp) == 0 {
-		return 0, Err(1)
-	}
-	//if C.RTMP_Write(s.rtmp,(*C.char)(unsafe.Pointer(&data[0])),C.int(len(data))) == 0 {
-	if rtmpWrite(s.rtmp, data) == 0 {
-		return 0, Err(2)
-	}
-	return len(data), nil
-}
-
 // rtmpWrite writes data to the current rtmp connection encapsulated by r
 func rtmpWrite(r *C.RTMP, data []byte) int {
 	buf := sliceToPtr(data)
@@ -968,6 +1050,41 @@ func avQueue(vals **C.RTMP_METHOD, num *int, av *C.AVal, txn int) {
 		int(unsafe.Sizeof(rtmpMethodPtr))))).name.av_val = (*C.char)(tmp)
 }
 
+func goStrToCStr(str string) *byte {
+	l := len(str)
+	slice := make([]byte, l+1)
+	ptr := unsafe.Pointer(&[]byte(str)[0])
+	for i := 0; i < l; i++ {
+		slice[i] = *indxBytePtr(ptr, i)
+	}
+	slice[l] = '\000'
+	return slice
+}
+
+func strlen(str *byte) int32 {
+	for i := 0; true; i++ {
+		ptr = indxBytePtr(unsafe.Pointer(str), i)
+		if *ptr == '\000' {
+			return i
+		}
+	}
+	return 0
+}
+
+func strchr(str *byte, val byte) *byte {
+	var ptr *byte
+	for i := 0; true; i++ {
+		ptr = indxBytePtr(unsafe.Pointer(str), i)
+		if *ptr == val {
+			return ptr
+		}
+		if *ptr == '\000' {
+			break
+		}
+	}
+	return nil
+}
+
 func allocate(nOfBytes uintptr) unsafe.Pointer {
 	mem := make([]byte, int(nOfBytes))
 	return unsafe.Pointer(&mem[0])