Oxy with gorilla for websocket(+integration tests)

vendor/github.com/vulcand/oxy/forward/headers.go

@@ -1,20 +1,25 @@
 package forward
 
 const (
-	XForwardedProto    = "X-Forwarded-Proto"
-	XForwardedFor      = "X-Forwarded-For"
-	XForwardedHost     = "X-Forwarded-Host"
-	XForwardedServer   = "X-Forwarded-Server"
-	Connection         = "Connection"
-	KeepAlive          = "Keep-Alive"
-	ProxyAuthenticate  = "Proxy-Authenticate"
-	ProxyAuthorization = "Proxy-Authorization"
-	Te                 = "Te" // canonicalized version of "TE"
-	Trailers           = "Trailers"
-	TransferEncoding   = "Transfer-Encoding"
-	Upgrade            = "Upgrade"
-	ContentLength      = "Content-Length"
-	ContentType        = "Content-Type"
+	XForwardedProto        = "X-Forwarded-Proto"
+	XForwardedFor          = "X-Forwarded-For"
+	XForwardedHost         = "X-Forwarded-Host"
+	XForwardedServer       = "X-Forwarded-Server"
+	Connection             = "Connection"
+	KeepAlive              = "Keep-Alive"
+	ProxyAuthenticate      = "Proxy-Authenticate"
+	ProxyAuthorization     = "Proxy-Authorization"
+	Te                     = "Te" // canonicalized version of "TE"
+	Trailers               = "Trailers"
+	TransferEncoding       = "Transfer-Encoding"
+	Upgrade                = "Upgrade"
+	ContentLength          = "Content-Length"
+	ContentType            = "Content-Type"
+	SecWebsocketKey        = "Sec-Websocket-Key"
+	SecWebsocketVersion    = "Sec-Websocket-Version"
+	SecWebsocketExtensions = "Sec-Websocket-Extensions"
+	SecWebsocketProtocol   = "Sec-Websocket-Protocol"
+	SecWebsocketAccept     = "Sec-Websocket-Accept"
 )
 
 // Hop-by-hop headers. These are removed when sent to the backend.
@@ -30,3 +35,19 @@ var HopHeaders = []string{
 	TransferEncoding,
 	Upgrade,
 }
+
+var WebsocketDialHeaders = []string{
+	Upgrade,
+	Connection,
+	SecWebsocketKey,
+	SecWebsocketVersion,
+	SecWebsocketExtensions,
+	SecWebsocketProtocol,
+	SecWebsocketAccept,
+}
+
+var WebsocketUpgradeHeaders = []string{
+	Upgrade,
+	Connection,
+	SecWebsocketAccept,
+}