allow scheme-less URLs

Author: Achille Roussel

curl.go

@@ -115,17 +115,14 @@ func run(ctx context.Context) error {
 		return fmt.Errorf("too many arguments passed in the command line invocation of kubectl curl [URL] [container]")
 	}
 
+	if strings.Index(query, "://") < 0 {
+		query = "http://" + query
+	}
+
 	requestURL, err := url.Parse(query)
 	if err != nil {
 		return fmt.Errorf("malformed URL: %w", err)
 	}
-	switch requestURL.Scheme {
-	case "http", "https":
-	case "":
-		return fmt.Errorf("missing scheme in query URL: %s", query)
-	default:
-		return fmt.Errorf("unsupposed scheme in query URL: %s", query)
-	}
 
 	podName, podPort, err := net.SplitHostPort(requestURL.Host)
 	if err != nil {

curl/curl.go

@@ -1024,8 +1024,8 @@ func NewOptionSet() OptionSet {
 		ServiceName(""),
 		ShowError(false),
 		Silent(false),
-		//SOCKS4(""),
-		//SOCKS4a(""),
+		SOCKS4(""),
+		SOCKS4a(""),
 		SOCKS5Basic(false),
 		SOCKS5GssAPIService(""),
 		SOCKS5GssAPI(false),