Changeset 25228

Timestamp:

09/04/2013 07:16:16 AM (11 years ago)

Author:

dd32

Message:

Core Auto Updates: Add a initial skin to allow capturing the output from the upgrader without displaying it (such as we need during cron calls).
This has been copied almost verbatim from the automatic-updater plugin with a few style tweaks and additional upgrade-possible check. See #22704

File:

• trunk/src/wp-admin/includes/class-wp-upgrader-skins.php (modified) (1 diff)

trunk/src/wp-admin/includes/class-wp-upgrader-skins.php

@@ -528 +528 @@
     }
 }
+
+/**
+ * Upgrader Skin for Background WordPress Upgrades
+ *
+ * This skin is designed to be used when no output is intended, all output 
+ * is captured and stored for the caller to process and log/email/discard.
+ *
+ * @package WordPress
+ * @subpackage Upgrader
+ * @since 3.7.0
+ */
+class Background_Upgrader_Skin extends WP_Upgrader_Skin {
+    var $messages = array();
+
+    function request_filesystem_credentials( $error = false ) {
+        // TODO: fix up request_filesystem_credentials(), or split it, to allow us to request a no-output version
+        // This will output a credentials form in event of failure, We don't want that, so just hide with a buffer
+        ob_start();
+        set_current_screen( 'tools' ); // Only here to avoid PHP Notices from screen_icon() which is used within that HTML
+        $result = parent::request_filesystem_credentials( $error );
+        ob_end_clean();
+        return $result;
+    }
+
+    function feedback( $data ) {
+        if ( is_wp_error( $data ) )
+            $string = $data->get_error_message();
+        else if ( is_array( $data ) )
+            return;
+        else
+            $string = $data;
+
+        if ( ! empty( $this->upgrader->strings[ $string ] ) )
+            $string = $this->upgrader->strings[ $string ];
+
+        if ( strpos( $string, '%' ) !== false ) {
+            $args = func_get_args();
+            $args = array_splice( $args, 1 );
+            if ( ! empty( $args ) )
+                $string = vsprintf( $string, $args );
+        }
+
+        $string = trim( $string );
+
+        // Only allow basic HTML in the messages, as it'll be used in emails/logs rather than direct browser output.
+        $string = wp_kses( $string, array(
+            'a' => array(
+                'href' => true
+            ),
+            'br' => true,
+            'em' => true,
+            'strong' => true,
+        ) );
+
+        if ( empty( $string ) )
+            return;
+
+        $this->messages[] = $string;
+    }
+
+    function header() {
+        ob_start();
+    }
+
+    function footer() {
+        $output = ob_get_contents();
+        if ( ! empty( $output ) )
+            $this->feedback( $output );
+        ob_end_clean();
+    }
+
+    function bulk_header() {}
+    function bulk_footer() {}
+    function before() {}
+    function after() {}
+}