mirror of
https://github.com/SagerNet/sing-box.git
synced 2025-04-03 03:47:37 +03:00
129 lines
3.8 KiB
Go
129 lines
3.8 KiB
Go
package anytls
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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/sing-box/adapter"
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"github.com/sagernet/sing-box/adapter/outbound"
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"github.com/sagernet/sing-box/common/dialer"
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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/log"
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"github.com/sagernet/sing-box/option"
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"github.com/sagernet/sing/common"
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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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"github.com/sagernet/sing/common/uot"
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anytls "github.com/anytls/sing-anytls"
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)
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func RegisterOutbound(registry *outbound.Registry) {
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outbound.Register[option.AnyTLSOutboundOptions](registry, C.TypeAnyTLS, NewOutbound)
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}
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type Outbound struct {
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outbound.Adapter
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dialer N.Dialer
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server M.Socksaddr
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tlsConfig tls.Config
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client *anytls.Client
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uotClient *uot.Client
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logger log.ContextLogger
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}
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func NewOutbound(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.AnyTLSOutboundOptions) (adapter.Outbound, error) {
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outbound := &Outbound{
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Adapter: outbound.NewAdapterWithDialerOptions(C.TypeAnyTLS, tag, []string{N.NetworkTCP, N.NetworkUDP}, options.DialerOptions),
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server: options.ServerOptions.Build(),
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logger: logger,
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}
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if options.TLS == nil || !options.TLS.Enabled {
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return nil, C.ErrTLSRequired
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}
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tlsConfig, err := tls.NewClient(ctx, options.Server, common.PtrValueOrDefault(options.TLS))
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if err != nil {
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return nil, err
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}
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outbound.tlsConfig = tlsConfig
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outboundDialer, err := dialer.NewWithOptions(dialer.Options{
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Context: ctx,
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Options: options.DialerOptions,
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})
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if err != nil {
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return nil, err
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}
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outbound.dialer = outboundDialer
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client, err := anytls.NewClient(ctx, anytls.ClientConfig{
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Password: options.Password,
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IdleSessionCheckInterval: options.IdleSessionCheckInterval.Build(),
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IdleSessionTimeout: options.IdleSessionTimeout.Build(),
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DialOut: outbound.dialOut,
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Logger: logger,
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})
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if err != nil {
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return nil, err
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}
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outbound.client = client
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outbound.uotClient = &uot.Client{
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Dialer: (anytlsDialer)(client.CreateProxy),
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Version: uot.Version,
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}
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return outbound, nil
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}
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type anytlsDialer func(ctx context.Context, destination M.Socksaddr) (net.Conn, error)
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func (d anytlsDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
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return d(ctx, destination)
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}
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func (d anytlsDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
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return nil, os.ErrInvalid
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}
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func (h *Outbound) dialOut(ctx context.Context) (net.Conn, error) {
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conn, err := h.dialer.DialContext(ctx, N.NetworkTCP, h.server)
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if err != nil {
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return nil, err
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}
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tlsConn, err := tls.ClientHandshake(ctx, conn, h.tlsConfig)
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if err != nil {
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common.Close(tlsConn, conn)
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return nil, err
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}
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return tlsConn, nil
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}
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func (h *Outbound) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
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ctx, metadata := adapter.ExtendContext(ctx)
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metadata.Outbound = h.Tag()
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metadata.Destination = destination
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switch N.NetworkName(network) {
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case N.NetworkTCP:
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h.logger.InfoContext(ctx, "outbound connection to ", destination)
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return h.client.CreateProxy(ctx, destination)
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case N.NetworkUDP:
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h.logger.InfoContext(ctx, "outbound UoT packet connection to ", destination)
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return h.uotClient.DialContext(ctx, network, destination)
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}
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return nil, os.ErrInvalid
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}
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func (h *Outbound) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
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ctx, metadata := adapter.ExtendContext(ctx)
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metadata.Outbound = h.Tag()
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metadata.Destination = destination
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h.logger.InfoContext(ctx, "outbound UoT packet connection to ", destination)
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return h.uotClient.ListenPacket(ctx, destination)
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}
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func (h *Outbound) Close() error {
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return common.Close(h.client)
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}
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