mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-24 01:21:30 +00:00
110 lines
4 KiB
Go
110 lines
4 KiB
Go
package mixed
|
|
|
|
import (
|
|
std_bufio "bufio"
|
|
"context"
|
|
"net"
|
|
|
|
"github.com/sagernet/sing-box/adapter"
|
|
"github.com/sagernet/sing-box/adapter/inbound"
|
|
"github.com/sagernet/sing-box/common/listener"
|
|
"github.com/sagernet/sing-box/common/uot"
|
|
C "github.com/sagernet/sing-box/constant"
|
|
"github.com/sagernet/sing-box/log"
|
|
"github.com/sagernet/sing-box/option"
|
|
"github.com/sagernet/sing/common/auth"
|
|
E "github.com/sagernet/sing/common/exceptions"
|
|
N "github.com/sagernet/sing/common/network"
|
|
"github.com/sagernet/sing/protocol/http"
|
|
"github.com/sagernet/sing/protocol/socks"
|
|
"github.com/sagernet/sing/protocol/socks/socks4"
|
|
"github.com/sagernet/sing/protocol/socks/socks5"
|
|
)
|
|
|
|
func RegisterInbound(registry *inbound.Registry) {
|
|
inbound.Register[option.HTTPMixedInboundOptions](registry, C.TypeMixed, NewInbound)
|
|
}
|
|
|
|
var _ adapter.TCPInjectableInbound = (*Inbound)(nil)
|
|
|
|
type Inbound struct {
|
|
inbound.Adapter
|
|
router adapter.ConnectionRouterEx
|
|
logger log.ContextLogger
|
|
listener *listener.Listener
|
|
authenticator *auth.Authenticator
|
|
}
|
|
|
|
func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.HTTPMixedInboundOptions) (adapter.Inbound, error) {
|
|
inbound := &Inbound{
|
|
Adapter: inbound.NewAdapter(C.TypeMixed, tag),
|
|
router: uot.NewRouter(router, logger),
|
|
logger: logger,
|
|
authenticator: auth.NewAuthenticator(options.Users),
|
|
}
|
|
inbound.listener = listener.New(listener.Options{
|
|
Context: ctx,
|
|
Logger: logger,
|
|
Network: []string{N.NetworkTCP},
|
|
Listen: options.ListenOptions,
|
|
ConnectionHandler: inbound,
|
|
SetSystemProxy: options.SetSystemProxy,
|
|
SystemProxySOCKS: true,
|
|
})
|
|
return inbound, nil
|
|
}
|
|
|
|
func (h *Inbound) Start() error {
|
|
return h.listener.Start()
|
|
}
|
|
|
|
func (h *Inbound) Close() error {
|
|
return h.listener.Close()
|
|
}
|
|
|
|
func (h *Inbound) NewConnectionEx(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
|
|
err := h.newConnection(ctx, conn, metadata, onClose)
|
|
N.CloseOnHandshakeFailure(conn, onClose, err)
|
|
if err != nil {
|
|
h.logger.ErrorContext(ctx, E.Cause(err, "process connection from ", metadata.Source))
|
|
}
|
|
}
|
|
|
|
func (h *Inbound) newConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) error {
|
|
reader := std_bufio.NewReader(conn)
|
|
headerBytes, err := reader.Peek(1)
|
|
if err != nil {
|
|
return E.Cause(err, "peek first byte")
|
|
}
|
|
switch headerBytes[0] {
|
|
case socks4.Version, socks5.Version:
|
|
return socks.HandleConnectionEx(ctx, conn, reader, h.authenticator, nil, adapter.NewUpstreamHandlerEx(metadata, h.newUserConnection, h.streamUserPacketConnection), metadata.Source, metadata.Destination, onClose)
|
|
default:
|
|
return http.HandleConnectionEx(ctx, conn, reader, h.authenticator, nil, adapter.NewUpstreamHandlerEx(metadata, h.newUserConnection, h.streamUserPacketConnection), metadata.Source, onClose)
|
|
}
|
|
}
|
|
|
|
func (h *Inbound) newUserConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
|
|
user, loaded := auth.UserFromContext[string](ctx)
|
|
if !loaded {
|
|
h.logger.InfoContext(ctx, "inbound connection to ", metadata.Destination)
|
|
h.router.RouteConnectionEx(ctx, conn, metadata, onClose)
|
|
return
|
|
}
|
|
metadata.User = user
|
|
h.logger.InfoContext(ctx, "[", user, "] inbound connection to ", metadata.Destination)
|
|
h.router.RouteConnectionEx(ctx, conn, metadata, onClose)
|
|
}
|
|
|
|
func (h *Inbound) streamUserPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
|
|
user, loaded := auth.UserFromContext[string](ctx)
|
|
if !loaded {
|
|
h.logger.InfoContext(ctx, "inbound packet connection to ", metadata.Destination)
|
|
h.router.RoutePacketConnectionEx(ctx, conn, metadata, onClose)
|
|
return
|
|
}
|
|
metadata.User = user
|
|
h.logger.InfoContext(ctx, "[", user, "] inbound packet connection to ", metadata.Destination)
|
|
h.router.RoutePacketConnectionEx(ctx, conn, metadata, onClose)
|
|
}
|