解决trojan无法兼容trojan-go客户端的问题.

main.go

@@ -641,7 +641,7 @@ func handshakeInserver(iics *incomingInserverConnState) (wlc io.ReadWriteCloser,
 					return
 				}
 
-				session := inServer.GetServerInnerMuxSession(mh.ReadWriteCloser)
+				session := inServer.GetServerInnerMuxSession(mh)
 
 				if session == nil {
 					err = utils.ErrFailed
@@ -660,7 +660,9 @@ func handshakeInserver(iics *incomingInserverConnState) (wlc io.ReadWriteCloser,
 
 						stream, err := session.AcceptStream()
 						if err != nil {
-							utils.Debug("inServer try accept stream err")
+							if ce := utils.CanLogDebug("mux inServer try accept stream failed"); ce != nil {
+								ce.Write(zap.Error(err))
+							}
 
 							session.Close()
 							return

proxy/proxy.go

@@ -37,9 +37,18 @@ func PrintAllClientNames() {
 //用于Server返回一个可被识别为innerMux的结构
 type MuxConnHaser struct {
 	io.ReadWriteCloser
+	OptionalReader io.Reader
 	IsMux          bool
 }
 
+func (mc MuxConnHaser) Read(p []byte) (n int, err error) {
+	if r := mc.OptionalReader; r != nil {
+		return r.Read(p)
+	} else {
+		return mc.ReadWriteCloser.Read(p)
+	}
+}
+
 // Client 用于向 服务端 拨号.
 //服务端是一种 “泛目标”代理，所以我们客户端的 Handshake 要传入目标地址, 来告诉它 我们 想要到达的 目标地址.
 // 一个Client 掌握从最底层的tcp等到最上层的 代理协议间的所有数据;
@@ -282,7 +291,7 @@ func (pcs *ProxyCommonStruct) HasInnerMux() (int, string) {
 	return 0, ""
 }
 
-func (pcs *ProxyCommonStruct) GetServerInnerMuxSession(wlc io.ReadWriteCloser) *smux.Session {
+func (*ProxyCommonStruct) GetServerInnerMuxSession(wlc io.ReadWriteCloser) *smux.Session {
 	smuxConfig := smux.DefaultConfig()
 	smuxSession, err := smux.Server(wlc, smuxConfig)
 	if err != nil {

proxy/trojan/server.go

@@ -159,10 +159,14 @@ realPart:
 	}
 
 	if ismux {
-		return proxy.MuxConnHaser{
+		mh := proxy.MuxConnHaser{
 			ReadWriteCloser: underlay,
 			IsMux:           true,
-		}, nil, targetAddr, nil
+		}
+		if readbuf.Len() > 0 {
+			mh.OptionalReader = io.MultiReader(readbuf, underlay)
+		}
+		return mh, nil, targetAddr, nil
 	}
 
 	if isudp {