mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-27 02:51:36 +00:00
120 lines
3.8 KiB
Go
120 lines
3.8 KiB
Go
package inbound
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import (
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std_bufio "bufio"
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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/common/tls"
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"github.com/sagernet/sing-box/common/uot"
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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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"github.com/sagernet/sing/common/auth"
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E "github.com/sagernet/sing/common/exceptions"
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N "github.com/sagernet/sing/common/network"
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"github.com/sagernet/sing/protocol/http"
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)
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var (
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_ adapter.Inbound = (*HTTP)(nil)
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_ adapter.TCPInjectableInbound = (*HTTP)(nil)
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)
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type HTTP struct {
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myInboundAdapter
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authenticator *auth.Authenticator
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tlsConfig tls.ServerConfig
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}
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func NewHTTP(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.HTTPMixedInboundOptions) (*HTTP, error) {
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inbound := &HTTP{
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myInboundAdapter: myInboundAdapter{
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protocol: C.TypeHTTP,
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network: []string{N.NetworkTCP},
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ctx: ctx,
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router: uot.NewRouter(router, logger),
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logger: logger,
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tag: tag,
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listenOptions: options.ListenOptions,
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setSystemProxy: options.SetSystemProxy,
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},
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authenticator: auth.NewAuthenticator(options.Users),
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}
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if options.TLS != nil {
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tlsConfig, err := tls.NewServer(ctx, logger, 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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inbound.tlsConfig = tlsConfig
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}
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inbound.connHandler = inbound
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return inbound, nil
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}
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func (h *HTTP) Start() error {
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if h.tlsConfig != nil {
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err := h.tlsConfig.Start()
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if err != nil {
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return E.Cause(err, "create TLS config")
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}
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}
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return h.myInboundAdapter.Start()
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}
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func (h *HTTP) Close() error {
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return common.Close(
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&h.myInboundAdapter,
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h.tlsConfig,
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)
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}
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func (h *HTTP) NewConnectionEx(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
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err := h.newConnection(ctx, conn, metadata, onClose)
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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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func (h *HTTP) newConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) error {
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var err error
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if h.tlsConfig != nil {
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conn, err = tls.ServerHandshake(ctx, conn, h.tlsConfig)
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if err != nil {
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return err
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}
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}
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return http.HandleConnectionEx(ctx, conn, std_bufio.NewReader(conn), h.authenticator, nil, h.upstreamUserHandlerEx(metadata), metadata.Source, onClose)
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}
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func (a *myInboundAdapter) upstreamUserHandlerEx(metadata adapter.InboundContext) adapter.UpstreamHandlerAdapterEx {
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return adapter.NewUpstreamHandlerEx(metadata, a.newUserConnection, a.streamUserPacketConnection)
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}
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func (a *myInboundAdapter) newUserConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
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user, loaded := auth.UserFromContext[string](ctx)
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if !loaded {
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a.logger.InfoContext(ctx, "inbound connection to ", metadata.Destination)
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a.router.RouteConnectionEx(ctx, conn, metadata, onClose)
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return
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}
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metadata.User = user
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a.logger.InfoContext(ctx, "[", user, "] inbound connection to ", metadata.Destination)
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a.router.RouteConnectionEx(ctx, conn, metadata, onClose)
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}
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func (a *myInboundAdapter) streamUserPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
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user, loaded := auth.UserFromContext[string](ctx)
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if !loaded {
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a.logger.InfoContext(ctx, "inbound packet connection to ", metadata.Destination)
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a.router.RoutePacketConnectionEx(ctx, conn, metadata, onClose)
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return
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}
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metadata.User = user
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a.logger.InfoContext(ctx, "[", user, "] inbound packet connection to ", metadata.Destination)
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a.router.RoutePacketConnectionEx(ctx, conn, metadata, onClose)
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}
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