fix http basic auth. fix #659

proxy/http/server.go

@@ -3,6 +3,7 @@ package http
 import (
 	"bufio"
 	"context"
+	"encoding/base64"
 	"io"
 	"net/http"
 	"runtime"
@@ -69,6 +70,23 @@ func isTimeout(err error) bool {
 	return ok && nerr.Timeout()
 }
 
+func parseBasicAuth(auth string) (username, password string, ok bool) {
+	const prefix = "Basic "
+	if !strings.HasPrefix(auth, prefix) {
+		return
+	}
+	c, err := base64.StdEncoding.DecodeString(auth[len(prefix):])
+	if err != nil {
+		return
+	}
+	cs := string(c)
+	s := strings.IndexByte(cs, ':')
+	if s < 0 {
+		return
+	}
+	return cs[:s], cs[s+1:], true
+}
+
 func (s *Server) Process(ctx context.Context, network net.Network, conn internet.Connection, dispatcher dispatcher.Interface) error {
 	reader := bufio.NewReaderSize(conn, 2048)
 
@@ -85,7 +103,7 @@ Start:
 	}
 
 	if len(s.config.Accounts) > 0 {
-		user, pass, ok := request.BasicAuth()
+		user, pass, ok := parseBasicAuth(request.Header.Get("Proxy-Authorization"))
 		if !ok || !s.config.HasAccount(user, pass) {
 			_, err := conn.Write([]byte("HTTP/1.1 401 UNAUTHORIZED\r\n\r\n"))
 			return err