add k8s client

vendor/gopkg.in/igm/sockjs-go.v2/sockjs/web.go

@@ -0,0 +1,47 @@
+package sockjs
+
+import (
+	"fmt"
+	"net/http"
+	"time"
+)
+
+func xhrCors(rw http.ResponseWriter, req *http.Request) {
+	header := rw.Header()
+	origin := req.Header.Get("origin")
+	if origin == "" || origin == "null" {
+		origin = "*"
+	}
+	header.Set("Access-Control-Allow-Origin", origin)
+
+	if allowHeaders := req.Header.Get("Access-Control-Request-Headers"); allowHeaders != "" && allowHeaders != "null" {
+		header.Add("Access-Control-Allow-Headers", allowHeaders)
+	}
+	header.Add("Access-Control-Allow-Credentials", "true")
+}
+
+func xhrOptions(rw http.ResponseWriter, req *http.Request) {
+	rw.Header().Set("Access-Control-Allow-Methods", "OPTIONS, POST")
+	rw.WriteHeader(http.StatusNoContent) // 204
+}
+
+func cacheFor(rw http.ResponseWriter, req *http.Request) {
+	rw.Header().Set("Cache-Control", fmt.Sprintf("public, max-age=%d", 365*24*60*60))
+	rw.Header().Set("Expires", time.Now().AddDate(1, 0, 0).Format(time.RFC1123))
+	rw.Header().Set("Access-Control-Max-Age", fmt.Sprintf("%d", 365*24*60*60))
+}
+
+func noCache(rw http.ResponseWriter, req *http.Request) {
+	rw.Header().Set("Cache-Control", "no-store, no-cache, must-revalidate, max-age=0")
+}
+
+func welcomeHandler(rw http.ResponseWriter, req *http.Request) {
+	rw.Header().Set("content-type", "text/plain;charset=UTF-8")
+	fmt.Fprintf(rw, "Welcome to SockJS!\n")
+}
+
+func httpError(w http.ResponseWriter, error string, code int) {
+	w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	w.WriteHeader(code)
+	fmt.Fprintf(w, error)
+}