73 lines
1.5 KiB
Go
73 lines
1.5 KiB
Go
package obfs
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import (
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"crypto/tls"
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tlsC "github.com/Dreamacro/clash/component/tls"
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"net"
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"net/http"
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"github.com/Dreamacro/clash/transport/vmess"
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)
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// Option is options of websocket obfs
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type Option struct {
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Host string
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Port string
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Path string
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Headers map[string]string
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TLS bool
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SkipCertVerify bool
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Fingerprint string
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Mux bool
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}
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// NewV2rayObfs return a HTTPObfs
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func NewV2rayObfs(conn net.Conn, option *Option) (net.Conn, error) {
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header := http.Header{}
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for k, v := range option.Headers {
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header.Add(k, v)
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}
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config := &vmess.WebsocketConfig{
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Host: option.Host,
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Port: option.Port,
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Path: option.Path,
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Headers: header,
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}
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if option.TLS {
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config.TLS = true
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tlsConfig := &tls.Config{
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ServerName: option.Host,
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InsecureSkipVerify: option.SkipCertVerify,
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NextProtos: []string{"http/1.1"},
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}
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if len(option.Fingerprint) == 0 {
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config.TLSConfig = tlsC.GetGlobalFingerprintTLCConfig(tlsConfig)
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} else {
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var err error
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if config.TLSConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint); err != nil {
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return nil, err
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}
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}
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if host := config.Headers.Get("Host"); host != "" {
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config.TLSConfig.ServerName = host
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}
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}
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var err error
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conn, err = vmess.StreamWebsocketConn(conn, config)
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if err != nil {
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return nil, err
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}
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if option.Mux {
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conn = NewMux(conn, MuxOption{
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ID: [2]byte{0, 0},
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Host: "127.0.0.1",
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Port: 0,
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})
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}
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return conn, nil
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}
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