Wordpress 2.5.1

[autoinstalls/wordpress.git] / wp-admin / includes / plugin.php

diff --git a/wp-admin/includes/plugin.php b/wp-admin/includes/plugin.php
index e5911bda79e67ddd37c4306ff220869c8a47aa1e..a862c5106ccba822da620d29f8c9a54f8aedb14c 100644 (file)
--- a/wp-admin/includes/plugin.php
+++ b/wp-admin/includes/plugin.php
@@ -31,7 +31,7 @@ function get_plugin_data( $plugin_file ) {
        return array('Name' => $name, 'Title' => $plugin, 'Description' => $description, 'Author' => $author, 'Version' => $version);
 }
 
-function get_plugins() {
+function get_plugins($plugin_folder = '') {
        global $wp_plugins;
 
        if ( isset( $wp_plugins ) ) {
@@ -40,6 +40,8 @@ function get_plugins() {
 
        $wp_plugins = array ();
        $plugin_root = ABSPATH . PLUGINDIR;
+       if( !empty($plugin_folder) )
+               $plugin_root .= $plugin_folder;
 
        // Files in wp-content/plugins directory
        $plugins_dir = @ opendir( $plugin_root);
@@ -86,6 +88,117 @@ function get_plugins() {
        return $wp_plugins;
 }
 
+function is_plugin_active($plugin){
+       return in_array($plugin, get_option('active_plugins'));
+}
+
+function activate_plugin($plugin, $redirect = '') {
+               $current = get_option('active_plugins');
+               $plugin = trim($plugin);
+
+               $valid = validate_plugin($plugin);
+               if ( is_wp_error($valid) )
+                       return $valid;
+
+               if ( !in_array($plugin, $current) ) {
+                       if ( !empty($redirect) )
+                               wp_redirect(add_query_arg('_error_nonce', wp_create_nonce('plugin-activation-error_' . $plugin), $redirect)); // we'll override this later if the plugin can be included without fatal error
+                       ob_start();
+                       @include(ABSPATH . PLUGINDIR . '/' . $plugin);
+                       $current[] = $plugin;
+                       sort($current);
+                       update_option('active_plugins', $current);
+                       do_action('activate_' . $plugin);
+                       ob_end_clean();
+               }
+
+               return null;
+}
+
+function deactivate_plugins($plugins, $silent= false) {
+       $current = get_option('active_plugins');
+
+       if ( !is_array($plugins) )
+               $plugins = array($plugins);
+
+       foreach ( $plugins as $plugin ) {
+               if( ! is_plugin_active($plugin) )
+                       continue;
+               array_splice($current, array_search( $plugin, $current), 1 ); // Fixed Array-fu!
+               if ( ! $silent ) //Used by Plugin updater to internally deactivate plugin, however, not to notify plugins of the fact to prevent plugin output.
+                       do_action('deactivate_' . trim( $plugin ));
+       }
+
+       update_option('active_plugins', $current);
+}
+
+function deactivate_all_plugins() {
+       $current = get_option('active_plugins');
+       if ( empty($current) )
+               return;
+
+       deactivate_plugins($current);
+
+       update_option('deactivated_plugins', $current);
+}
+
+function reactivate_all_plugins($redirect = '') {
+       $plugins = get_option('deactivated_plugins');
+
+       if ( empty($plugins) )
+               return;
+
+       if ( !empty($redirect) )
+               wp_redirect(add_query_arg('_error_nonce', wp_create_nonce('plugin-activation-error_' . $plugin), $redirect));
+
+       $errors = array();
+       foreach ( (array) $plugins as $plugin ) {
+               $result = activate_plugin($plugin);
+               if ( is_wp_error($result) )
+                       $errors[$plugin] = $result;
+       }
+
+       delete_option('deactivated_plugins');
+
+       if ( !empty($errors) )
+               return new WP_Error('plugins_invalid', __('One of the plugins is invalid.'), $errors);
+
+       return true;
+}
+
+function validate_active_plugins() {
+       $check_plugins = get_option('active_plugins');
+
+       // Sanity check.  If the active plugin list is not an array, make it an
+       // empty array.
+       if ( !is_array($check_plugins) ) {
+               update_option('active_plugins', array());
+               return;
+       }
+
+       // If a plugin file does not exist, remove it from the list of active
+       // plugins.
+       foreach ( $check_plugins as $check_plugin ) {
+               if ( !file_exists(ABSPATH . PLUGINDIR . '/' . $check_plugin) ) {
+                       $current = get_option('active_plugins');
+                       $key = array_search($check_plugin, $current);
+                       if ( false !== $key && NULL !== $key ) {
+                               unset($current[$key]);
+                               update_option('active_plugins', $current);
+                       }
+               }
+       }
+}
+
+function validate_plugin($plugin) {
+       if ( validate_file($plugin) )
+               return new WP_Error('plugin_invalid', __('Invalid plugin.'));
+       if ( ! file_exists(ABSPATH . PLUGINDIR . '/' . $plugin) )
+               return new WP_Error('plugin_not_found', __('Plugin file does not exist.'));
+
+       return 0;
+}
+
 //
 // Menu
 //
@@ -111,7 +224,6 @@ function add_submenu_page( $parent, $page_title, $menu_title, $access_level, $fi
        global $menu;
        global $_wp_real_parent_file;
        global $_wp_submenu_nopriv;
-       global $_wp_menu_nopriv;
 
        $file = plugin_basename( $file );
 
@@ -287,10 +399,8 @@ function get_admin_page_title() {
 }
 
 function get_plugin_page_hook( $plugin_page, $parent_page ) {
-       global $wp_filter;
-
        $hook = get_plugin_page_hookname( $plugin_page, $parent_page );
-       if ( isset( $wp_filter[$hook] ))
+       if ( has_action($hook) )
                return $hook;
        else
                return null;