Golang TCPConn.Close方法代码示例

func (this *HttpProxyServer) handleConnection(conn *hub.TCPConn) {
	defer conn.Close()
	reader := bufio.NewReader(conn)

	request, err := http.ReadRequest(reader)
	if err != nil {
		log.Warning("Failed to read http request: ", err)
		return
	}
	log.Info("Request to Method [", request.Method, "] Host [", request.Host, "] with URL [", request.URL, "]")
	defaultPort := v2net.Port(80)
	if strings.ToLower(request.URL.Scheme) == "https" {
		defaultPort = v2net.Port(443)
	}
	host := request.Host
	if len(host) == 0 {
		host = request.URL.Host
	}
	dest, err := parseHost(host, defaultPort)
	if err != nil {
		log.Warning("Malformed proxy host (", host, "): ", err)
		return
	}
	if strings.ToUpper(request.Method) == "CONNECT" {
		this.handleConnect(request, dest, reader, conn)
	} else {
		this.handlePlainHTTP(request, dest, reader, conn)
	}
}

func (this *VMessInboundHandler) HandleConnection(connection *hub.TCPConn) {
	defer connection.Close()

	connReader := v2net.NewTimeOutReader(16, connection)
	requestReader := protocol.NewVMessRequestReader(this.clients)

	request, err := requestReader.Read(connReader)
	if err != nil {
		log.Access(connection.RemoteAddr(), serial.StringLiteral(""), log.AccessRejected, serial.StringLiteral(err.Error()))
		log.Warning("VMessIn: Invalid request from ", connection.RemoteAddr(), ": ", err)
		return
	}
	log.Access(connection.RemoteAddr(), request.Address, log.AccessAccepted, serial.StringLiteral(""))
	log.Debug("VMessIn: Received request for ", request.Address)

	ray := this.packetDispatcher.DispatchToOutbound(v2net.NewPacket(request.Destination(), nil, true))
	input := ray.InboundInput()
	output := ray.InboundOutput()
	var readFinish, writeFinish sync.Mutex
	readFinish.Lock()
	writeFinish.Lock()

	userSettings := vmess.GetUserSettings(request.User.Level)
	connReader.SetTimeOut(userSettings.PayloadReadTimeout)
	go handleInput(request, connReader, input, &readFinish)

	responseKey := md5.Sum(request.RequestKey)
	responseIV := md5.Sum(request.RequestIV)

	aesStream, err := v2crypto.NewAesEncryptionStream(responseKey[:], responseIV[:])
	if err != nil {
		log.Error("VMessIn: Failed to create AES decryption stream: ", err)
		close(input)
		return
	}

	responseWriter := v2crypto.NewCryptionWriter(aesStream, connection)

	// Optimize for small response packet
	buffer := alloc.NewLargeBuffer().Clear()
	defer buffer.Release()
	buffer.AppendBytes(request.ResponseHeader, byte(0))
	this.generateCommand(buffer)

	if data, open := <-output; open {
		buffer.Append(data.Value)
		data.Release()
		responseWriter.Write(buffer.Value)
		go handleOutput(request, responseWriter, output, &writeFinish)
		writeFinish.Lock()
	}

	connection.CloseWrite()
	readFinish.Lock()
}

func (this *DokodemoDoor) HandleTCPConnection(conn *hub.TCPConn) {
	defer conn.Close()

	packet := v2net.NewPacket(v2net.TCPDestination(this.address, this.port), nil, true)
	ray := this.packetDispatcher.DispatchToOutbound(packet)

	var inputFinish, outputFinish sync.Mutex
	inputFinish.Lock()
	outputFinish.Lock()

	reader := v2net.NewTimeOutReader(this.config.Timeout, conn)
	go dumpInput(reader, ray.InboundInput(), &inputFinish)
	go dumpOutput(conn, ray.InboundOutput(), &outputFinish)

	outputFinish.Lock()
}

func (this *SocksServer) HandleConnection(connection *hub.TCPConn) {
	defer connection.Close()

	reader := v2net.NewTimeOutReader(120, connection)

	auth, auth4, err := protocol.ReadAuthentication(reader)
	if err != nil && err != protocol.Socks4Downgrade {
		log.Error("Socks: failed to read authentication: ", err)
		return
	}

	if err != nil && err == protocol.Socks4Downgrade {
		this.handleSocks4(reader, connection, auth4)
	} else {
		this.handleSocks5(reader, connection, auth)
	}
}

func (this *Shadowsocks) handleConnection(conn *hub.TCPConn) {
	defer conn.Close()

	buffer := alloc.NewSmallBuffer()
	defer buffer.Release()

	_, err := io.ReadFull(conn, buffer.Value[:this.config.Cipher.IVSize()])
	if err != nil {
		log.Access(conn.RemoteAddr(), serial.StringLiteral(""), log.AccessRejected, serial.StringLiteral(err.Error()))
		log.Error("Shadowsocks: Failed to read IV: ", err)
		return
	}

	iv := buffer.Value[:this.config.Cipher.IVSize()]
	key := this.config.Key

	reader, err := this.config.Cipher.NewDecodingStream(key, iv, conn)
	if err != nil {
		log.Error("Shadowsocks: Failed to create decoding stream: ", err)
		return
	}

	request, err := ReadRequest(reader, NewAuthenticator(HeaderKeyGenerator(iv, key)), false)
	if err != nil {
		log.Access(conn.RemoteAddr(), serial.StringLiteral(""), log.AccessRejected, serial.StringLiteral(err.Error()))
		log.Warning("Shadowsocks: Invalid request from ", conn.RemoteAddr(), ": ", err)
		return
	}

	dest := v2net.TCPDestination(request.Address, request.Port)
	log.Access(conn.RemoteAddr(), dest, log.AccessAccepted, serial.StringLiteral(""))
	log.Info("Shadowsocks: Tunnelling request to ", dest)

	packet := v2net.NewPacket(dest, nil, true)
	ray := this.packetDispatcher.DispatchToOutbound(packet)

	var writeFinish sync.Mutex
	writeFinish.Lock()
	go func() {
		if payload, ok := <-ray.InboundOutput(); ok {
			payload.SliceBack(16)
			rand.Read(payload.Value[:16])

			writer, err := this.config.Cipher.NewEncodingStream(key, payload.Value[:16], conn)
			if err != nil {
				log.Error("Shadowsocks: Failed to create encoding stream: ", err)
				return
			}

			writer.Write(payload.Value)
			payload.Release()
			v2io.ChanToRawWriter(writer, ray.InboundOutput())
		}
		writeFinish.Unlock()
	}()

	var payloadReader v2io.Reader
	if request.OTA {
		payloadAuth := NewAuthenticator(ChunkKeyGenerator(iv))
		payloadReader = NewChunkReader(reader, payloadAuth)
	} else {
		payloadReader = v2io.NewAdaptiveReader(reader)
	}

	v2io.ReaderToChan(ray.InboundInput(), payloadReader)
	close(ray.InboundInput())

	writeFinish.Lock()
}

func (this *VMessInboundHandler) HandleConnection(connection *hub.TCPConn) {
	defer connection.Close()

	connReader := v2net.NewTimeOutReader(16, connection)

	reader := v2io.NewBufferedReader(connReader)
	session := raw.NewServerSession(this.clients)

	request, err := session.DecodeRequestHeader(reader)
	if err != nil {
		log.Access(connection.RemoteAddr(), serial.StringLiteral(""), log.AccessRejected, serial.StringLiteral(err.Error()))
		log.Warning("VMessIn: Invalid request from ", connection.RemoteAddr(), ": ", err)
		return
	}
	log.Access(connection.RemoteAddr(), request.Destination(), log.AccessAccepted, serial.StringLiteral(""))
	log.Debug("VMessIn: Received request for ", request.Destination())

	ray := this.packetDispatcher.DispatchToOutbound(v2net.NewPacket(request.Destination(), nil, true))
	input := ray.InboundInput()
	output := ray.InboundOutput()
	var readFinish, writeFinish sync.Mutex
	readFinish.Lock()
	writeFinish.Lock()

	userSettings := proto.GetUserSettings(request.User.Level)
	connReader.SetTimeOut(userSettings.PayloadReadTimeout)
	reader.SetCached(false)
	go func() {
		defer close(input)
		defer readFinish.Unlock()
		bodyReader := session.DecodeRequestBody(reader)
		var requestReader v2io.Reader
		if request.Option.IsChunkStream() {
			requestReader = vmessio.NewAuthChunkReader(bodyReader)
		} else {
			requestReader = v2io.NewAdaptiveReader(bodyReader)
		}
		v2io.ReaderToChan(input, requestReader)
	}()

	writer := v2io.NewBufferedWriter(connection)

	response := &proto.ResponseHeader{
		Command: this.generateCommand(request),
	}

	session.EncodeResponseHeader(response, writer)

	bodyWriter := session.EncodeResponseBody(writer)

	// Optimize for small response packet
	if data, open := <-output; open {
		if request.Option.IsChunkStream() {
			vmessio.Authenticate(data)
		}
		bodyWriter.Write(data.Value)
		data.Release()

		writer.SetCached(false)
		go func(finish *sync.Mutex) {
			var writer v2io.Writer = v2io.NewAdaptiveWriter(bodyWriter)
			if request.Option.IsChunkStream() {
				writer = vmessio.NewAuthChunkWriter(writer)
			}
			v2io.ChanToWriter(writer, output)
			finish.Unlock()
		}(&writeFinish)
		writeFinish.Lock()
	}

	connection.CloseWrite()
	readFinish.Lock()
}