110 lines
2.5 KiB
Go
110 lines
2.5 KiB
Go
package adapters
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import (
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"crypto/tls"
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"fmt"
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"net"
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"strconv"
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"github.com/Dreamacro/clash/component/socks5"
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C "github.com/Dreamacro/clash/constant"
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)
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type Socks5 struct {
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*Base
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addr string
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user string
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pass string
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tls bool
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skipCertVerify bool
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tlsConfig *tls.Config
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}
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type Socks5Option struct {
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Name string `proxy:"name"`
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Server string `proxy:"server"`
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Port int `proxy:"port"`
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UserName string `proxy:"username,omitempty"`
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Password string `proxy:"password,omitempty"`
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TLS bool `proxy:"tls,omitempty"`
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UDP bool `proxy:"udp,omitempty"`
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SkipCertVerify bool `proxy:"skip-cert-verify,omitempty"`
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}
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func (ss *Socks5) Dial(metadata *C.Metadata) (net.Conn, error) {
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c, err := dialTimeout("tcp", ss.addr, tcpTimeout)
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if err == nil && ss.tls {
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cc := tls.Client(c, ss.tlsConfig)
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err = cc.Handshake()
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c = cc
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}
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if err != nil {
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return nil, fmt.Errorf("%s connect error", ss.addr)
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}
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tcpKeepAlive(c)
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var user *socks5.User
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if ss.user != "" {
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user = &socks5.User{
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Username: ss.user,
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Password: ss.pass,
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}
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}
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if err := socks5.ClientHandshake(c, serializesSocksAddr(metadata), socks5.CmdConnect, user); err != nil {
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return nil, err
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}
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return c, nil
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}
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func (ss *Socks5) DialUDP(metadata *C.Metadata) (net.PacketConn, net.Addr, error) {
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c, err := dialTimeout("tcp", ss.addr, tcpTimeout)
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if err == nil && ss.tls {
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cc := tls.Client(c, ss.tlsConfig)
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err = cc.Handshake()
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c = cc
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}
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if err != nil {
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return nil, nil, fmt.Errorf("%s connect error", ss.addr)
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}
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tcpKeepAlive(c)
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var user *socks5.User
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if ss.user != "" {
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user = &socks5.User{
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Username: ss.user,
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Password: ss.pass,
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}
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}
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if err := socks5.ClientHandshake(c, serializesSocksAddr(metadata), socks5.CmdUDPAssociate, user); err != nil {
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return nil, nil, err
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}
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return &fakeUDPConn{Conn: c}, c.LocalAddr(), nil
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}
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func NewSocks5(option Socks5Option) *Socks5 {
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var tlsConfig *tls.Config
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if option.TLS {
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tlsConfig = &tls.Config{
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InsecureSkipVerify: option.SkipCertVerify,
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ClientSessionCache: getClientSessionCache(),
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ServerName: option.Server,
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}
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}
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return &Socks5{
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Base: &Base{
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name: option.Name,
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tp: C.Socks5,
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udp: option.UDP,
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},
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addr: net.JoinHostPort(option.Server, strconv.Itoa(option.Port)),
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user: option.UserName,
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pass: option.Password,
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tls: option.TLS,
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skipCertVerify: option.SkipCertVerify,
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tlsConfig: tlsConfig,
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}
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}
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