Esempio n. 1
0
func (this *VMessOutboundHandler) handleRequest(session *raw.ClientSession, conn net.Conn, request *proto.RequestHeader, firstPacket v2net.Packet, input <-chan *alloc.Buffer, finish *sync.Mutex) {
	defer finish.Unlock()

	writer := v2io.NewBufferedWriter(conn)
	session.EncodeRequestHeader(request, writer)

	// Send first packet of payload together with request, in favor of small requests.
	firstChunk := firstPacket.Chunk()
	moreChunks := firstPacket.MoreChunks()

	for firstChunk == nil && moreChunks {
		firstChunk, moreChunks = <-input
	}

	if firstChunk == nil && !moreChunks {
		log.Warning("VMessOut: Nothing to send. Existing...")
		return
	}

	if request.Option.IsChunkStream() {
		vmessio.Authenticate(firstChunk)
	}

	bodyWriter := session.EncodeRequestBody(writer)
	bodyWriter.Write(firstChunk.Value)
	firstChunk.Release()

	writer.SetCached(false)

	if moreChunks {
		var streamWriter v2io.ReleasableWriter = v2io.NewAdaptiveWriter(bodyWriter)
		if request.Option.IsChunkStream() {
			streamWriter = vmessio.NewAuthChunkWriter(streamWriter)
		}
		v2io.ChanToWriter(streamWriter, input)
		streamWriter.Release()
	}
	return
}
Esempio n. 2
0
func (this *VMessInboundHandler) HandleConnection(connection *hub.TCPConn) {
	defer connection.Close()

	connReader := v2net.NewTimeOutReader(16, connection)
	defer connReader.Release()

	reader := v2io.NewBufferedReader(connReader)
	defer reader.Release()

	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.ReleasableReader
		if request.Option.IsChunkStream() {
			requestReader = vmessio.NewAuthChunkReader(bodyReader)
		} else {
			requestReader = v2io.NewAdaptiveReader(bodyReader)
		}
		v2io.ReaderToChan(input, requestReader)
		requestReader.Release()
	}()

	writer := v2io.NewBufferedWriter(connection)
	defer writer.Release()

	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.ReleasableWriter = v2io.NewAdaptiveWriter(bodyWriter)
			if request.Option.IsChunkStream() {
				writer = vmessio.NewAuthChunkWriter(writer)
			}
			v2io.ChanToWriter(writer, output)
			writer.Release()
			finish.Unlock()
		}(&writeFinish)
		writeFinish.Lock()
	}

	connection.CloseWrite()
	readFinish.Lock()
}