Update vendor libraries except client-go, apimachinery and ugorji/go (#1197)

This fix updates vendor libraries except client-go, apimachinery
and ugorji/go, as github.com/ugorji/go/codec is causing compatibilities issues.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/vendor/github.com/emicklei/go-restful/compress.go b/vendor/github.com/emicklei/go-restful/compress.go
index 66f3603e4..220b37712 100644
--- a/vendor/github.com/emicklei/go-restful/compress.go
+++ b/vendor/github.com/emicklei/go-restful/compress.go
@@ -5,10 +5,12 @@ package restful
 // that can be found in the LICENSE file.
 
 import (
+	"bufio"
 	"compress/gzip"
 	"compress/zlib"
 	"errors"
 	"io"
+	"net"
 	"net/http"
 	"strings"
 )
@@ -69,6 +71,17 @@ func (c *CompressingResponseWriter) isCompressorClosed() bool {
 	return nil == c.compressor
 }
 
+// Hijack implements the Hijacker interface
+// This is especially useful when combining Container.EnabledContentEncoding
+// in combination with websockets (for instance gorilla/websocket)
+func (c *CompressingResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	hijacker, ok := c.writer.(http.Hijacker)
+	if !ok {
+		return nil, nil, errors.New("ResponseWriter doesn't support Hijacker interface")
+	}
+	return hijacker.Hijack()
+}
+
 // WantsCompressedResponse reads the Accept-Encoding header to see if and which encoding is requested.
 func wantsCompressedResponse(httpRequest *http.Request) (bool, string) {
 	header := httpRequest.Header.Get(HEADER_AcceptEncoding)