[xnet/xhttp] GetCookie utility function (#6)

xnet/xhttp/README.md

@@ -3,5 +3,5 @@ Extensions to the standard Go library's `net/http` package. `ListenAndServe` alt
 
 ### Install
 ```
-go get github.com/kucherenkovova/gopypaste/xnet/[email protected].2
+go get github.com/kucherenkovova/gopypaste/xnet/[email protected].3
 ```

xnet/xhttp/cookie.go

@@ -0,0 +1,18 @@
+package xhttp
+
+import (
+	"net/http"
+	"net/url"
+)
+
+// GetCookie returns the unescaped cookie provided in the request or empty string if not found.
+func GetCookie(r *http.Request, name string) string {
+	cookie, err := r.Cookie(name)
+	if err != nil {
+		return ""
+	}
+
+	val, _ := url.QueryUnescape(cookie.Value)
+
+	return val
+}

xnet/xhttp/header.go

@@ -11,6 +11,7 @@ const (
 	HeaderOrigin         = "Origin"
 	HeaderReferer        = "Referer"
 	HeaderServer         = "Server"
+	HeaderSetCookie      = "Set-Cookie"
 	HeaderUserAgent      = "User-Agent"
 	HeaderXForwardedFor  = "X-Forwarded-For"
 )