Ticket #16606: 16606.3.patch

wp-includes/class-http.php

@@ -868 +868 @@
          *
          * @return boolean False means this class can not be used, true means it can.
          */
-        function test($args = array()) {
+        function test( $args = array(), $url = '' ) {
                 if ( ! function_exists('fopen') || (function_exists('ini_get') && true != ini_get('allow_url_fopen')) )
                         return false;
 
-                return apply_filters('use_streams_transport', true, $args);
+                $scheme = empty( $url ) ? 'http' : parse_url( $url, PHP_URL_SCHEME );
+                $scheme = empty( $scheme ) ? '' : strtolower( $scheme );
+
+                $use = empty( $scheme ) ? false : in_array( $scheme, stream_get_wrappers() );
+
+                if ( $use && isset( $args['ssl'] ) && $args['ssl'] ) {
+                        $use = in_array( 'ssl', stream_get_transports() );
+                }
+
+                return (bool) apply_filters( 'use_streams_transport', $use, $args );
         }
 }