88 lines
1.7 KiB
Go
88 lines
1.7 KiB
Go
package mixed
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import (
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"context"
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"github.com/database64128/tfo-go"
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"net"
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"time"
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"github.com/Dreamacro/clash/common/cache"
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N "github.com/Dreamacro/clash/common/net"
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C "github.com/Dreamacro/clash/constant"
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"github.com/Dreamacro/clash/listener/http"
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"github.com/Dreamacro/clash/listener/socks"
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"github.com/Dreamacro/clash/transport/socks4"
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"github.com/Dreamacro/clash/transport/socks5"
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)
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type Listener struct {
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listener net.Listener
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addr string
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cache *cache.Cache[string, bool]
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closed bool
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}
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// RawAddress implements C.Listener
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func (l *Listener) RawAddress() string {
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return l.addr
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}
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// Address implements C.Listener
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func (l *Listener) Address() string {
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return l.listener.Addr().String()
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}
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// Close implements C.Listener
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func (l *Listener) Close() error {
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l.closed = true
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return l.listener.Close()
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}
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func New(addr string, inboundTfo bool, in chan<- C.ConnContext) (*Listener, error) {
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lc := tfo.ListenConfig{
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DisableTFO: !inboundTfo,
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}
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l, err := lc.Listen(context.Background(), "tcp", addr)
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if err != nil {
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return nil, err
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}
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ml := &Listener{
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listener: l,
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addr: addr,
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cache: cache.New[string, bool](30 * time.Second),
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}
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go func() {
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for {
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c, err := ml.listener.Accept()
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if err != nil {
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if ml.closed {
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break
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}
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continue
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}
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go handleConn(c, in, ml.cache)
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}
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}()
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return ml, nil
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}
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func handleConn(conn net.Conn, in chan<- C.ConnContext, cache *cache.Cache[string, bool]) {
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conn.(*net.TCPConn).SetKeepAlive(true)
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bufConn := N.NewBufferedConn(conn)
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head, err := bufConn.Peek(1)
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if err != nil {
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return
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}
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switch head[0] {
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case socks4.Version:
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socks.HandleSocks4(bufConn, in)
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case socks5.Version:
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socks.HandleSocks5(bufConn, in)
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default:
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http.HandleConn(bufConn, in, cache)
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}
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}
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