100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
package v2rayquic
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import (
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"context"
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"net"
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"os"
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"github.com/sagernet/quic-go"
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"github.com/sagernet/sing-box/adapter"
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"github.com/sagernet/sing-box/common/tls"
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C "github.com/sagernet/sing-box/constant"
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"github.com/sagernet/sing-box/option"
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"github.com/sagernet/sing-box/transport/hysteria"
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"github.com/sagernet/sing/common"
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E "github.com/sagernet/sing/common/exceptions"
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M "github.com/sagernet/sing/common/metadata"
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N "github.com/sagernet/sing/common/network"
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)
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var _ adapter.V2RayServerTransport = (*Server)(nil)
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type Server struct {
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ctx context.Context
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tlsConfig *tls.STDConfig
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quicConfig *quic.Config
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handler N.TCPConnectionHandler
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errorHandler E.Handler
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udpListener net.PacketConn
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quicListener quic.Listener
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}
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func NewServer(ctx context.Context, options option.V2RayQUICOptions, tlsConfig tls.Config, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error) {
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quicConfig := &quic.Config{
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DisablePathMTUDiscovery: !C.IsLinux && !C.IsWindows,
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}
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stdConfig, err := tlsConfig.Config()
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if err != nil {
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return nil, err
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}
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if len(stdConfig.NextProtos) == 0 {
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stdConfig.NextProtos = []string{"h2", "http/1.1"}
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}
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server := &Server{
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ctx: ctx,
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tlsConfig: stdConfig,
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quicConfig: quicConfig,
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handler: handler,
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errorHandler: errorHandler,
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}
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return server, nil
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}
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func (s *Server) Network() []string {
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return []string{N.NetworkUDP}
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}
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func (s *Server) Serve(listener net.Listener) error {
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return os.ErrInvalid
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}
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func (s *Server) ServePacket(listener net.PacketConn) error {
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quicListener, err := quic.Listen(listener, s.tlsConfig, s.quicConfig)
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if err != nil {
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return err
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}
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s.udpListener = listener
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s.quicListener = quicListener
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go s.acceptLoop()
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return nil
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}
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func (s *Server) acceptLoop() {
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for {
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conn, err := s.quicListener.Accept(s.ctx)
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if err != nil {
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return
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}
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go func() {
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hErr := s.streamAcceptLoop(conn)
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if hErr != nil {
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s.errorHandler.NewError(conn.Context(), hErr)
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}
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}()
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}
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}
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func (s *Server) streamAcceptLoop(conn quic.Connection) error {
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for {
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stream, err := conn.AcceptStream(s.ctx)
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if err != nil {
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return err
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}
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go s.handler.NewConnection(conn.Context(), &hysteria.StreamWrapper{Conn: conn, Stream: stream}, M.Metadata{})
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}
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}
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func (s *Server) Close() error {
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return common.Close(s.udpListener, s.quicListener)
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}
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