mirror of https://github.com/v2fly/v2ray-core.git
132 lines
3.0 KiB
Go
132 lines
3.0 KiB
Go
package vmess
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import (
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"crypto/md5"
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"io"
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"net"
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"github.com/v2ray/v2ray-core"
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v2io "github.com/v2ray/v2ray-core/io"
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vmessio "github.com/v2ray/v2ray-core/io/vmess"
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"github.com/v2ray/v2ray-core/log"
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)
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type VMessInboundHandler struct {
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vPoint *core.VPoint
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clients *core.VUserSet
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accepting bool
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}
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func NewVMessInboundHandler(vp *core.VPoint, clients *core.VUserSet) *VMessInboundHandler {
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handler := new(VMessInboundHandler)
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handler.vPoint = vp
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handler.clients = clients
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return handler
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}
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func (handler *VMessInboundHandler) Listen(port uint8) error {
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listener, err := net.Listen("tcp", ":"+string(port))
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if err != nil {
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return err
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}
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handler.accepting = true
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go handler.AcceptConnections(listener)
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return nil
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}
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func (handler *VMessInboundHandler) AcceptConnections(listener net.Listener) error {
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for handler.accepting {
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connection, err := listener.Accept()
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if err != nil {
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return err
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}
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go handler.HandleConnection(connection)
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}
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return nil
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}
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func (handler *VMessInboundHandler) HandleConnection(connection net.Conn) error {
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defer connection.Close()
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reader := vmessio.NewVMessRequestReader(handler.clients)
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request, err := reader.Read(connection)
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if err != nil {
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return err
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}
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response := vmessio.NewVMessResponse(request)
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connection.Write(response[:])
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requestKey := request.RequestKey[:]
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requestIV := request.RequestIV[:]
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responseKey := md5.Sum(requestKey)
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responseIV := md5.Sum(requestIV)
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requestReader, err := v2io.NewAesDecryptReader(requestKey, requestIV, connection)
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if err != nil {
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return err
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}
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responseWriter, err := v2io.NewAesEncryptWriter(responseKey[:], responseIV[:], connection)
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if err != nil {
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return err
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}
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ray := handler.vPoint.NewInboundConnectionAccepted(request.Address)
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input := ray.InboundInput()
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output := ray.InboundOutput()
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finish := make(chan bool, 2)
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go handler.dumpInput(requestReader, input, finish)
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go handler.dumpOutput(responseWriter, output, finish)
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handler.waitForFinish(finish)
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return nil
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}
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func (handler *VMessInboundHandler) dumpInput(reader io.Reader, input chan<- []byte, finish chan<- bool) {
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for {
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buffer := make([]byte, BufferSize)
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nBytes, err := reader.Read(buffer)
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if err == io.EOF {
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close(input)
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finish <- true
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break
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}
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input <- buffer[:nBytes]
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}
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}
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func (handler *VMessInboundHandler) dumpOutput(writer io.Writer, output <-chan []byte, finish chan<- bool) {
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for {
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buffer, open := <-output
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if !open {
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finish <- true
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break
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}
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writer.Write(buffer)
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}
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}
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func (handler *VMessInboundHandler) waitForFinish(finish <-chan bool) {
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for i := 0; i < 2; i++ {
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<-finish
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}
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}
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type VMessInboundHandlerFactory struct {
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}
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func (factory *VMessInboundHandlerFactory) Create(vp *core.VPoint, rawConfig []byte) *VMessInboundHandler {
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config, err := loadInboundConfig(rawConfig)
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if err != nil {
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panic(log.Error("Failed to load VMess inbound config: %v", err))
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}
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allowedClients := core.NewVUserSet()
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for _, user := range config.AllowedClients {
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allowedClients.AddUser(user)
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}
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return NewVMessInboundHandler(vp, allowedClients)
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}
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