func NewSocks4AuthenticationResponse(result byte, port v2net.Port, ip []byte) *Socks4AuthenticationResponse {
return &Socks4AuthenticationResponse{
result: result,
port: port.Value(),
ip: ip,
}
}
func writeSocks4Response(writer io.Writer, errCode byte, address v2net.Address, port v2net.Port) error {
buffer := buf.NewLocal(32)
buffer.AppendBytes(0x00, errCode)
buffer.AppendSupplier(serial.WriteUint16(port.Value()))
buffer.Append(address.IP())
_, err := writer.Write(buffer.Bytes())
return err
}
func appendAddress(buffer *buf.Buffer, address v2net.Address, port v2net.Port) {
switch address.Family() {
case v2net.AddressFamilyIPv4:
buffer.AppendBytes(0x01)
buffer.Append(address.IP())
case v2net.AddressFamilyIPv6:
buffer.AppendBytes(0x04)
buffer.Append(address.IP())
case v2net.AddressFamilyDomain:
buffer.AppendBytes(0x03, byte(len(address.Domain())))
buffer.AppendSupplier(serial.WriteString(address.Domain()))
}
buffer.AppendSupplier(serial.WriteUint16(port.Value()))
}
func (subject *PortSubject) LessThan(expectation net.Port) {
if subject.value.Value() >= expectation.Value() {
subject.Fail("is less than", expectation.String())
}
}
func (subject *PortSubject) GreaterThan(expectation net.Port) {
if subject.value.Value() <= expectation.Value() {
subject.Fail("is greater than", expectation.String())
}
}
func (subject *PortSubject) Equals(expectation net.Port) {
if subject.value.Value() != expectation.Value() {
subject.Fail("is equal to", expectation.String())
}
}
func (wsl *WSListener) listenws(address v2net.Address, port v2net.Port) error {
http.HandleFunc("/"+wsl.config.Path, func(w http.ResponseWriter, r *http.Request) {
con, err := wsl.converttovws(w, r)
if err != nil {
log.Warning("WebSocket|Listener: Failed to convert connection: ", err)
return
}
select {
case wsl.awaitingConns <- &ConnectionWithError{
conn: con,
}:
default:
if con != nil {
con.Close()
}
}
return
})
errchan := make(chan error)
listenerfunc := func() error {
ol, err := net.Listen("tcp", address.String()+":"+strconv.Itoa(int(port.Value())))
if err != nil {
return err
}
wsl.listener, err = NewStoppableListener(ol)
if err != nil {
return err
}
return http.Serve(wsl.listener, nil)
}
if wsl.tlsConfig != nil {
listenerfunc = func() error {
var err error
wsl.listener, err = getstopableTLSlistener(wsl.tlsConfig, address.String()+":"+strconv.Itoa(int(port.Value())))
if err != nil {
return err
}
return http.Serve(wsl.listener, nil)
}
}
go func() {
err := listenerfunc()
errchan <- err
return
}()
var err error
select {
case err = <-errchan:
case <-time.After(time.Second * 2):
//Should this listen fail after 2 sec, it could gone untracked.
}
if err != nil {
log.Error("WebSocket|Listener: Failed to serve: ", err)
}
return err
}