vhost: use new readClientHello function (#2504)

pkg/util/vhost/https_test.go

@@ -0,0 +1,38 @@
+package vhost
+
+import (
+	"crypto/tls"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetHTTPSHostname(t *testing.T) {
+	require := require.New(t)
+
+	l, err := net.Listen("tcp", ":")
+	require.NoError(err)
+	defer l.Close()
+
+	var conn net.Conn
+	go func() {
+		conn, _ = l.Accept()
+		require.NotNil(conn)
+	}()
+
+	go func() {
+		time.Sleep(100 * time.Millisecond)
+		tls.Dial("tcp", l.Addr().String(), &tls.Config{
+			InsecureSkipVerify: true,
+			ServerName:         "example.com",
+		})
+	}()
+
+	time.Sleep(200 * time.Millisecond)
+	_, infos, err := GetHTTPSHostname(conn)
+	require.NoError(err)
+	require.Equal("example.com", infos["Host"])
+	require.Equal("https", infos["Scheme"])
+}