mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-12-12 16:18:50 +00:00
121 lines
3.8 KiB
Go
121 lines
3.8 KiB
Go
package shadowtls
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import (
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"context"
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"net"
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"github.com/sagernet/sing-box/adapter"
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"github.com/sagernet/sing-box/adapter/inbound"
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"github.com/sagernet/sing-box/common/dialer"
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"github.com/sagernet/sing-box/common/listener"
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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-shadowtls"
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"github.com/sagernet/sing/common"
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"github.com/sagernet/sing/common/auth"
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E "github.com/sagernet/sing/common/exceptions"
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"github.com/sagernet/sing/common/logger"
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N "github.com/sagernet/sing/common/network"
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)
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func RegisterInbound(registry *inbound.Registry) {
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inbound.Register[option.ShadowTLSInboundOptions](registry, C.TypeShadowTLS, NewInbound)
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}
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type Inbound struct {
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inbound.Adapter
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router adapter.Router
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logger logger.ContextLogger
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listener *listener.Listener
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service *shadowtls.Service
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}
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func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.ShadowTLSInboundOptions) (adapter.Inbound, error) {
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inbound := &Inbound{
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Adapter: inbound.NewAdapter(C.TypeShadowTLS, tag),
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router: router,
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logger: logger,
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}
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if options.Version == 0 {
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options.Version = 1
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}
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var handshakeForServerName map[string]shadowtls.HandshakeConfig
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if options.Version > 1 {
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handshakeForServerName = make(map[string]shadowtls.HandshakeConfig)
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for serverName, serverOptions := range options.HandshakeForServerName {
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handshakeDialer, err := dialer.New(router, serverOptions.DialerOptions)
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if err != nil {
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return nil, err
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}
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handshakeForServerName[serverName] = shadowtls.HandshakeConfig{
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Server: serverOptions.ServerOptions.Build(),
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Dialer: handshakeDialer,
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}
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}
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}
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handshakeDialer, err := dialer.New(router, options.Handshake.DialerOptions)
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if err != nil {
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return nil, err
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}
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service, err := shadowtls.NewService(shadowtls.ServiceConfig{
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Version: options.Version,
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Password: options.Password,
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Users: common.Map(options.Users, func(it option.ShadowTLSUser) shadowtls.User {
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return (shadowtls.User)(it)
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}),
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Handshake: shadowtls.HandshakeConfig{
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Server: options.Handshake.ServerOptions.Build(),
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Dialer: handshakeDialer,
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},
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HandshakeForServerName: handshakeForServerName,
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StrictMode: options.StrictMode,
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Handler: adapter.NewUpstreamContextHandler(inbound.newConnection, nil, nil),
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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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inbound.service = service
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inbound.listener = listener.New(listener.Options{
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Context: ctx,
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Logger: logger,
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Network: []string{N.NetworkTCP},
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Listen: options.ListenOptions,
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ConnectionHandler: inbound,
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})
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return inbound, nil
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}
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func (h *Inbound) Start() error {
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return h.listener.Start()
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}
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func (h *Inbound) Close() error {
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return h.listener.Close()
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}
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func (h *Inbound) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
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return h.service.NewConnection(adapter.WithContext(log.ContextWithNewID(ctx), &metadata), conn, adapter.UpstreamMetadata(metadata))
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}
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func (h *Inbound) newConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
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if userName, _ := auth.UserFromContext[string](ctx); userName != "" {
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metadata.User = userName
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h.logger.InfoContext(ctx, "[", userName, "] inbound connection to ", metadata.Destination)
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} else {
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h.logger.InfoContext(ctx, "inbound connection to ", metadata.Destination)
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}
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return h.router.RouteConnection(ctx, conn, metadata)
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}
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func (h *Inbound) NewConnectionEx(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
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err := h.NewConnection(ctx, conn, metadata)
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N.CloseOnHandshakeFailure(conn, onClose, err)
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if err != nil {
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h.logger.ErrorContext(ctx, E.Cause(err, "process connection from ", metadata.Source))
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}
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}
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