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Feature: support relay (proxy chains) (#539)

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This commit is contained in:
duama
2020-03-21 23:46:49 +08:00
committed by GitHub
parent 70a19b999d
commit c0a2473160
18 changed files with 293 additions and 86 deletions
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35
adapters/outbound/socks5.go
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@ -17,7 +17,6 @@ import (
type Socks5 struct {
*Base
addr string
user string
pass string
tls bool
@ -36,19 +35,16 @@ type Socks5Option struct {
SkipCertVerify bool `proxy:"skip-cert-verify,omitempty"`
}
func (ss *Socks5) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
c, err := dialer.DialContext(ctx, "tcp", ss.addr)
if err == nil && ss.tls {
func (ss *Socks5) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
if ss.tls {
cc := tls.Client(c, ss.tlsConfig)
err = cc.Handshake()
err := cc.Handshake()
c = cc
if err != nil {
return nil, fmt.Errorf("%s connect error: %w", ss.addr, err)
}
}
if err != nil {
return nil, fmt.Errorf("%s connect error: %w", ss.addr, err)
}
tcpKeepAlive(c)
var user *socks5.User
if ss.user != "" {
user = &socks5.User{
@ -59,7 +55,22 @@ func (ss *Socks5) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn
if _, err := socks5.ClientHandshake(c, serializesSocksAddr(metadata), socks5.CmdConnect, user); err != nil {
return nil, err
}
return newConn(c, ss), nil
return c, nil
}
func (ss *Socks5) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
c, err := dialer.DialContext(ctx, "tcp", ss.addr)
if err != nil {
return nil, fmt.Errorf("%s connect error: %w", ss.addr, err)
}
tcpKeepAlive(c)
c, err = ss.StreamConn(c, metadata)
if err != nil {
return nil, err
}
return NewConn(c, ss), nil
}
func (ss *Socks5) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
@ -127,10 +138,10 @@ func NewSocks5(option Socks5Option) *Socks5 {
return &Socks5{
Base: &Base{
name: option.Name,
addr: net.JoinHostPort(option.Server, strconv.Itoa(option.Port)),
tp: C.Socks5,
udp: option.UDP,
},
addr: net.JoinHostPort(option.Server, strconv.Itoa(option.Port)),
user: option.UserName,
pass: option.Password,
tls: option.TLS,