add mws dialer

pkg/dialer/obfs/http/conn.go

@@ -23,7 +23,7 @@ type obfsHTTPConn struct {
 	headerDrained  bool
 	handshaked     bool
 	handshakeMutex sync.Mutex
-	headers        map[string]string
+	header         http.Header
 	logger         logger.Logger
 }
 
@@ -50,15 +50,15 @@ func (c *obfsHTTPConn) handshake() (err error) {
 		ProtoMajor: 1,
 		ProtoMinor: 1,
 		URL:        &url.URL{Scheme: "http", Host: c.host},
-		Header:     make(http.Header),
+		Header:     c.header,
+	}
+	if r.Header == nil {
+		r.Header = http.Header{}
 	}
 	r.Header.Set("Connection", "Upgrade")
 	r.Header.Set("Upgrade", "websocket")
 	key, _ := c.generateChallengeKey()
 	r.Header.Set("Sec-WebSocket-Key", key)
-	for k, v := range c.headers {
-		r.Header.Set(k, v)
-	}
 
 	// cache the request header
 	if err = r.Write(&c.wbuf); err != nil {

pkg/dialer/obfs/http/dialer.go

@@ -56,9 +56,9 @@ func (d *obfsHTTPDialer) Handshake(ctx context.Context, conn net.Conn, options .
 	}
 
 	return &obfsHTTPConn{
-		Conn:    conn,
-		host:    host,
-		headers: d.md.headers,
-		logger:  d.logger,
+		Conn:   conn,
+		host:   host,
+		header: d.md.header,
+		logger: d.logger,
 	}, nil
 }

pkg/dialer/obfs/http/metadata.go

@@ -2,27 +2,28 @@ package http
 
 import (
 	"fmt"
+	"net/http"
 
 	md "github.com/go-gost/gost/pkg/metadata"
 )
 
 type metadata struct {
-	host    string
-	headers map[string]string
+	host   string
+	header http.Header
 }
 
 func (d *obfsHTTPDialer) parseMetadata(md md.Metadata) (err error) {
 	const (
-		headers = "headers"
-		host    = "host"
+		header = "header"
+		host   = "host"
 	)
 
-	if mm, _ := md.Get(headers).(map[interface{}]interface{}); len(mm) > 0 {
-		m := make(map[string]string)
+	if mm, _ := md.Get(header).(map[interface{}]interface{}); len(mm) > 0 {
+		h := http.Header{}
 		for k, v := range mm {
-			m[fmt.Sprintf("%v", k)] = fmt.Sprintf("%v", v)
+			h.Add(fmt.Sprintf("%v", k), fmt.Sprintf("%v", v))
 		}
-		d.md.headers = m
+		d.md.header = h
 	}
 	d.md.host = md.GetString(host)
 	return