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Parse X-Forward-For in HTTP requests

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世界 2022-08-23 19:44:40 +08:00
parent e750c747c6
commit 9f6ff54a76
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GPG key ID: CD109927C34A63C4
14 changed files with 38 additions and 59 deletions
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5
common/dialer/tls.go
View file

@ -21,11 +21,14 @@ type TLSDialer struct {
}
func TLSConfig(serverAddress string, options option.OutboundTLSOptions) (*tls.Config, error) {
if !options.Enabled {
return nil, nil
}
var serverName string
if options.ServerName != "" {
serverName = options.ServerName
} else if serverAddress != "" {
if _, err := netip.ParseAddr(serverName); err != nil {
if _, err := netip.ParseAddr(serverName); err == nil {
serverName = serverAddress
}
}

4
go.mod
View file

@ -19,7 +19,7 @@ require (
github.com/sagernet/certmagic v0.0.0-20220819042630-4a57f8b6853a
github.com/sagernet/netlink v0.0.0-20220820041223-3cd8365d17ac
github.com/sagernet/quic-go v0.0.0-20220818150011-de611ab3e2bb
github.com/sagernet/sing v0.0.0-20220822075357-8b9965b73533
github.com/sagernet/sing v0.0.0-20220823075935-c333192241ec
github.com/sagernet/sing-dns v0.0.0-20220822023312-3e086b06d666
github.com/sagernet/sing-shadowsocks v0.0.0-20220819002358-7461bb09a8f6
github.com/sagernet/sing-tun v0.0.0-20220822073626-d5efb431220d
@ -29,7 +29,7 @@ require (
github.com/stretchr/testify v1.8.0
go.uber.org/atomic v1.10.0
golang.org/x/crypto v0.0.0-20220817201139-bc19a97f63c8
golang.org/x/net v0.0.0-20220812174116-3211cb980234
golang.org/x/net v0.0.0-20220822230855-b0a4917ee28c
golang.org/x/sys v0.0.0-20220818161305-2296e01440c6
golang.zx2c4.com/wireguard v0.0.0-20220703234212-c31a7b1ab478
google.golang.org/grpc v1.48.0

8
go.sum
View file

@ -140,8 +140,8 @@ github.com/sagernet/quic-go v0.0.0-20220818150011-de611ab3e2bb h1:wc0yQ+SBn4TaTY
github.com/sagernet/quic-go v0.0.0-20220818150011-de611ab3e2bb/go.mod h1:MIccjRKnPTjWwAOpl+AUGWOkzyTd9tERytudxu+1ra4=
github.com/sagernet/sing v0.0.0-20220812082120-05f9836bff8f/go.mod h1:QVsS5L/ZA2Q5UhQwLrn0Trw+msNd/NPGEhBKR/ioWiY=
github.com/sagernet/sing v0.0.0-20220817130738-ce854cda8522/go.mod h1:QVsS5L/ZA2Q5UhQwLrn0Trw+msNd/NPGEhBKR/ioWiY=
github.com/sagernet/sing v0.0.0-20220822075357-8b9965b73533 h1:oOOlmOE6QAGtkYeNyboTm/RzPO8g9mCybg0xveWxvnI=
github.com/sagernet/sing v0.0.0-20220822075357-8b9965b73533/go.mod h1:kZvzh1VDa/Dg/Bt5WaYKU0jl5ept8KKDpl3Ay4gRtRQ=
github.com/sagernet/sing v0.0.0-20220823075935-c333192241ec h1:71B48luR/x6uGug+8VN1oUwGuBNgpb7lgb0q9FjgsVw=
github.com/sagernet/sing v0.0.0-20220823075935-c333192241ec/go.mod h1:kZvzh1VDa/Dg/Bt5WaYKU0jl5ept8KKDpl3Ay4gRtRQ=
github.com/sagernet/sing-dns v0.0.0-20220822023312-3e086b06d666 h1:XUTocA/Ek0dFxUX+xJCWMPPFZCn2GC/uLrBjTSr1vHY=
github.com/sagernet/sing-dns v0.0.0-20220822023312-3e086b06d666/go.mod h1:eDyH7AJmqBGjZQdQmpZIzlbTREudZuWDExMuGKgjRVM=
github.com/sagernet/sing-shadowsocks v0.0.0-20220819002358-7461bb09a8f6 h1:JJfDeYYhWunvtxsU/mOVNTmFQmnzGx9dY034qG6G3g4=
@ -215,8 +215,8 @@ golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v
golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
golang.org/x/net v0.0.0-20220630215102-69896b714898/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
golang.org/x/net v0.0.0-20220812174116-3211cb980234 h1:RDqmgfe7SvlMWoqC3xwQ2blLO3fcWcxMa3eBLRdRW7E=
golang.org/x/net v0.0.0-20220812174116-3211cb980234/go.mod h1:YDH+HFinaLZZlnHAfSS6ZXJJ9M9t4Dl22yv3iI2vPwk=
golang.org/x/net v0.0.0-20220822230855-b0a4917ee28c h1:JVAXQ10yGGVbSyoer5VILysz6YKjdNT2bsvlayjqhes=
golang.org/x/net v0.0.0-20220822230855-b0a4917ee28c/go.mod h1:YDH+HFinaLZZlnHAfSS6ZXJJ9M9t4Dl22yv3iI2vPwk=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=

21
inbound/default.go
View file

@ -63,29 +63,18 @@ func (a *myInboundAdapter) Tag() string {
func (a *myInboundAdapter) Start() error {
var err error
bindAddr := M.SocksaddrFrom(netip.Addr(a.listenOptions.Listen), a.listenOptions.ListenPort)
if common.Contains(a.network, N.NetworkTCP) {
var tcpListener *net.TCPListener
if !a.listenOptions.TCPFastOpen {
tcpListener, err = net.ListenTCP(M.NetworkFromNetAddr(N.NetworkTCP, bindAddr.Addr), bindAddr.TCPAddr())
} else {
tcpListener, err = tfo.ListenTCP(M.NetworkFromNetAddr(N.NetworkTCP, bindAddr.Addr), bindAddr.TCPAddr())
}
_, err = a.ListenTCP()
if err != nil {
return err
}
a.tcpListener = tcpListener
go a.loopTCPIn()
a.logger.Info("tcp server started at ", tcpListener.Addr())
}
if common.Contains(a.network, N.NetworkUDP) {
var udpConn *net.UDPConn
udpConn, err = net.ListenUDP(M.NetworkFromNetAddr(N.NetworkUDP, bindAddr.Addr), bindAddr.UDPAddr())
_, err = a.ListenUDP()
if err != nil {
return err
}
a.udpConn = udpConn
a.udpAddr = bindAddr
a.packetOutboundClosed = make(chan struct{})
a.packetOutbound = make(chan *myInboundPacket)
if a.oobPacketHandler != nil {
@ -102,7 +91,6 @@ func (a *myInboundAdapter) Start() error {
}
go a.loopUDPOut()
}
a.logger.Info("udp server started at ", udpConn.LocalAddr())
}
if a.setSystemProxy {
a.clearSystemProxy, err = settings.SetSystemProxy(a.router, M.SocksaddrFromNet(a.tcpListener.Addr()).Port, a.protocol == C.TypeMixed)
@ -188,8 +176,7 @@ func (a *myInboundAdapter) loopTCPIn() {
}
}
func (a *myInboundAdapter) createMetadata(conn net.Conn) adapter.InboundContext {
var metadata adapter.InboundContext
func (a *myInboundAdapter) createMetadata(conn net.Conn, metadata adapter.InboundContext) adapter.InboundContext {
metadata.Inbound = a.tag
metadata.InboundType = a.protocol
metadata.SniffEnabled = a.listenOptions.SniffEnabled
@ -203,7 +190,7 @@ func (a *myInboundAdapter) createMetadata(conn net.Conn) adapter.InboundContext
func (a *myInboundAdapter) injectTCP(conn net.Conn) {
ctx := log.ContextWithNewID(a.ctx)
metadata := a.createMetadata(conn)
metadata := a.createMetadata(conn, adapter.InboundContext{})
a.logger.InfoContext(ctx, "inbound connection from ", metadata.Source)
hErr := a.connHandler.NewConnection(ctx, conn, metadata)
if hErr != nil {

3
inbound/http.go
View file

@ -13,7 +13,6 @@ import (
"github.com/sagernet/sing/common"
"github.com/sagernet/sing/common/auth"
E "github.com/sagernet/sing/common/exceptions"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing/protocol/http"
)
@ -72,7 +71,7 @@ func (h *HTTP) NewConnection(ctx context.Context, conn net.Conn, metadata adapte
if h.tlsConfig != nil {
conn = tls.Server(conn, h.tlsConfig.Config())
}
return http.HandleConnection(ctx, conn, std_bufio.NewReader(conn), h.authenticator, h.upstreamUserHandler(metadata), M.Metadata{})
return http.HandleConnection(ctx, conn, std_bufio.NewReader(conn), h.authenticator, h.upstreamUserHandler(metadata), adapter.UpstreamMetadata(metadata))
}
func (a *myInboundAdapter) upstreamUserHandler(metadata adapter.InboundContext) adapter.UpstreamHandlerAdapter {

5
inbound/mixed.go
View file

@ -12,7 +12,6 @@ import (
"github.com/sagernet/sing/common/auth"
"github.com/sagernet/sing/common/buf"
"github.com/sagernet/sing/common/bufio"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing/common/rw"
"github.com/sagernet/sing/protocol/http"
@ -53,8 +52,8 @@ func (h *Mixed) NewConnection(ctx context.Context, conn net.Conn, metadata adapt
}
switch headerType {
case socks4.Version, socks5.Version:
return socks.HandleConnection0(ctx, conn, headerType, h.authenticator, h.upstreamUserHandler(metadata), M.Metadata{})
return socks.HandleConnection0(ctx, conn, headerType, h.authenticator, h.upstreamUserHandler(metadata), adapter.UpstreamMetadata(metadata))
}
reader := std_bufio.NewReader(bufio.NewCachedReader(conn, buf.As([]byte{headerType})))
return http.HandleConnection(ctx, conn, reader, h.authenticator, h.upstreamUserHandler(metadata), M.Metadata{})
return http.HandleConnection(ctx, conn, reader, h.authenticator, h.upstreamUserHandler(metadata), adapter.UpstreamMetadata(metadata))
}

11
inbound/naive.go
View file

@ -25,6 +25,7 @@ import (
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing/common/rw"
sHttp "github.com/sagernet/sing/protocol/http"
)
var _ adapter.Inbound = (*Naive)(nil)
@ -155,7 +156,7 @@ func (n *Naive) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
if hostPort == "" {
hostPort = request.Host
}
source := M.ParseSocksaddr(request.RemoteAddr)
source := sHttp.SourceAddress(request)
destination := M.ParseSocksaddr(hostPort)
if hijacker, isHijacker := writer.(http.Hijacker); isHijacker {
@ -170,10 +171,10 @@ func (n *Naive) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
}
func (n *Naive) newConnection(ctx context.Context, conn net.Conn, source, destination M.Socksaddr) {
metadata := n.createMetadata(conn)
metadata.Source = source
metadata.Destination = destination
n.routeTCP(ctx, conn, metadata)
n.routeTCP(ctx, conn, n.createMetadata(conn, adapter.InboundContext{
Source: source,
Destination: destination,
}))
}
func (n *Naive) badRequest(ctx context.Context, request *http.Request, err error) {

3
inbound/socks.go
View file

@ -9,7 +9,6 @@ import (
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing-box/option"
"github.com/sagernet/sing/common/auth"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing/protocol/socks"
)
@ -39,5 +38,5 @@ func NewSocks(ctx context.Context, router adapter.Router, logger log.ContextLogg
}
func (h *Socks) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
return socks.HandleConnection(ctx, conn, h.authenticator, h.upstreamUserHandler(metadata), M.Metadata{})
return socks.HandleConnection(ctx, conn, h.authenticator, h.upstreamUserHandler(metadata), adapter.UpstreamMetadata(metadata))
}

3
inbound/tproxy.go
View file

@ -4,6 +4,7 @@ import (
"context"
"net"
"net/netip"
"syscall"
"github.com/sagernet/sing-box/adapter"
"github.com/sagernet/sing-box/common/redir"
@ -55,7 +56,7 @@ func (t *TProxy) Start() error {
return err
}
if t.tcpListener != nil {
err = control.Conn(t.tcpListener, func(fd uintptr) error {
err = control.Conn(common.MustCast[syscall.Conn](t.tcpListener), func(fd uintptr) error {
return redir.TProxy(fd, M.SocksaddrFromNet(t.tcpListener.Addr()).Addr.Is6())
})
if err != nil {

2
inbound/trojan.go
View file

@ -133,7 +133,7 @@ func (h *Trojan) NewConnection(ctx context.Context, conn net.Conn, metadata adap
}
func (h *Trojan) newTransportConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
metadata = h.createMetadata(conn)
metadata = h.createMetadata(conn, metadata)
return h.service.NewConnection(adapter.WithContext(log.ContextWithNewID(ctx), &metadata), conn, adapter.UpstreamMetadata(metadata))
}

2
inbound/vmess.go
View file

@ -131,7 +131,7 @@ func (h *VMess) NewConnection(ctx context.Context, conn net.Conn, metadata adapt
}
func (h *VMess) newTransportConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
metadata = h.createMetadata(conn)
metadata = h.createMetadata(conn, metadata)
return h.service.NewConnection(adapter.WithContext(log.ContextWithNewID(ctx), &metadata), conn, adapter.UpstreamMetadata(metadata))
}

3
route/rule_domain.go
View file

@ -4,7 +4,6 @@ import (
"strings"
"github.com/sagernet/sing-box/adapter"
"github.com/sagernet/sing/common"
"github.com/sagernet/sing/common/domain"
)
@ -16,8 +15,6 @@ type DomainItem struct {
}
func NewDomainItem(domains []string, domainSuffixes []string) *DomainItem {
domains = common.Uniq(domains)
domainSuffixes = common.Uniq(domainSuffixes)
var description string
if dLen := len(domains); dLen > 0 {
if dLen == 1 {

8
transport/v2rayhttp/server.go
View file

@ -15,6 +15,7 @@ import (
E "github.com/sagernet/sing/common/exceptions"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
sHttp "github.com/sagernet/sing/protocol/http"
)
var _ adapter.V2RayServerTransport = (*Server)(nil)
@ -92,7 +93,8 @@ func (s *Server) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
if f, ok := writer.(http.Flusher); ok {
f.Flush()
}
var metadata M.Metadata
metadata.Source = sHttp.SourceAddress(request)
if h, ok := writer.(http.Hijacker); ok {
conn, _, err := h.Hijack()
if err != nil {
@ -100,7 +102,7 @@ func (s *Server) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
s.badRequest(request, E.Cause(err, "hijack conn"))
return
}
s.handler.NewConnection(request.Context(), conn, M.Metadata{})
s.handler.NewConnection(request.Context(), conn, metadata)
} else {
conn := &ServerHTTPConn{
HTTPConn{
@ -109,7 +111,7 @@ func (s *Server) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
},
writer.(http.Flusher),
}
s.handler.NewConnection(request.Context(), conn, M.Metadata{})
s.handler.NewConnection(request.Context(), conn, metadata)
}
}

19
transport/v2raywebsocket/server.go
View file

@ -6,7 +6,6 @@ import (
"encoding/base64"
"net"
"net/http"
"net/netip"
"os"
"strings"
@ -19,6 +18,7 @@ import (
E "github.com/sagernet/sing/common/exceptions"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
sHttp "github.com/sagernet/sing/protocol/http"
"github.com/gorilla/websocket"
)
@ -101,25 +101,16 @@ func (s *Server) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
s.badRequest(request, E.Cause(err, "upgrade websocket connection"))
return
}
var remoteAddr net.Addr
forwardFrom := request.Header.Get("X-Forwarded-For")
if forwardFrom != "" {
for _, from := range strings.Split(forwardFrom, ",") {
originAddr, err := netip.ParseAddr(from)
if err == nil {
remoteAddr = M.SocksaddrFrom(originAddr, 0).TCPAddr()
break
}
}
}
var metadata M.Metadata
metadata.Source = sHttp.SourceAddress(request)
conn = &WebsocketConn{
Conn: wsConn,
remoteAddr: remoteAddr,
remoteAddr: metadata.Source.TCPAddr(),
}
if len(earlyData) > 0 {
conn = bufio.NewCachedConn(conn, buf.As(earlyData))
}
s.handler.NewConnection(request.Context(), conn, M.Metadata{})
s.handler.NewConnection(request.Context(), conn, metadata)
}
func (s *Server) badRequest(request *http.Request, err error) {