func (this *VMessOutboundHandler) handleRequest(conn net.Conn, request *protocol.VMessRequest, firstPacket v2net.Packet, input <-chan *alloc.Buffer, finish *sync.Mutex) {
defer finish.Unlock()
aesStream, err := v2crypto.NewAesEncryptionStream(request.RequestKey[:], request.RequestIV[:])
if err != nil {
log.Error("VMessOut: Failed to create AES encryption stream: ", err)
return
}
encryptRequestWriter := v2crypto.NewCryptionWriter(aesStream, conn)
buffer := alloc.NewBuffer().Clear()
defer buffer.Release()
buffer, err = request.ToBytes(protocol.NewRandomTimestampGenerator(protocol.Timestamp(time.Now().Unix()), 30), buffer)
if err != nil {
log.Error("VMessOut: Failed to serialize VMess request: ", err)
return
}
// 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.IsChunkStream() {
vmessio.Authenticate(firstChunk)
}
aesStream.XORKeyStream(firstChunk.Value, firstChunk.Value)
buffer.Append(firstChunk.Value)
firstChunk.Release()
_, err = conn.Write(buffer.Value)
if err != nil {
log.Error("VMessOut: Failed to write VMess request: ", err)
return
}
if moreChunks {
var streamWriter v2io.Writer
streamWriter = v2io.NewAdaptiveWriter(encryptRequestWriter)
if request.IsChunkStream() {
streamWriter = vmessio.NewAuthChunkWriter(streamWriter)
}
v2io.ChanToWriter(streamWriter, input)
}
return
}
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
}
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()
}
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 {
if request.IsChunkStream() {
vmessio.Authenticate(data)
}
buffer.Append(data.Value)
data.Release()
responseWriter.Write(buffer.Value)
go func(finish *sync.Mutex) {
var writer v2io.Writer
writer = v2io.NewAdaptiveWriter(responseWriter)
if request.IsChunkStream() {
writer = vmessio.NewAuthChunkWriter(writer)
}
v2io.ChanToWriter(writer, output)
finish.Unlock()
}(&writeFinish)
writeFinish.Lock()
}
connection.CloseWrite()
readFinish.Lock()
}
