diff -r a4642baaf829 -r 4d4862461b8d web/wp-admin/includes/plugin.php
--- a/web/wp-admin/includes/plugin.php Tue Feb 02 14:45:47 2010 +0000
+++ b/web/wp-admin/includes/plugin.php Tue Feb 02 15:44:16 2010 +0000
@@ -1,1151 +1,1126 @@
-
- * /*
- * Plugin Name: Name of Plugin
- * Plugin URI: Link to plugin information
- * Description: Plugin Description
- * Author: Plugin author's name
- * Author URI: Link to the author's web site
- * Version: Must be set in the plugin for WordPress 2.3+
- * Text Domain: Optional. Unique identifier, should be same as the one used in
- * plugin_text_domain()
- * Domain Path: Optional. Only useful if the translations are located in a
- * folder above the plugin's base path. For example, if .mo files are
- * located in the locale folder then Domain Path will be "/locale/" and
- * must have the first slash. Defaults to the base folder the plugin is
- * located in.
- * * / # Remove the space to close comment
- *
- *
- * Plugin data returned array contains the following:
- * 'Name' - Name of the plugin, must be unique.
- * 'Title' - Title of the plugin and the link to the plugin's web site.
- * 'Description' - Description of what the plugin does and/or notes
- * from the author.
- * 'Author' - The author's name
- * 'AuthorURI' - The authors web site address.
- * 'Version' - The plugin version number.
- * 'PluginURI' - Plugin web site address.
- * 'TextDomain' - Plugin's text domain for localization.
- * 'DomainPath' - Plugin's relative directory path to .mo files.
- *
- * Some users have issues with opening large files and manipulating the contents
- * for want is usually the first 1kiB or 2kiB. This function stops pulling in
- * the plugin contents when it has all of the required plugin data.
- *
- * The first 8kiB of the file will be pulled in and if the plugin data is not
- * within that first 8kiB, then the plugin author should correct their plugin
- * and move the plugin data headers to the top.
- *
- * The plugin file is assumed to have permissions to allow for scripts to read
- * the file. This is not checked however and the file is only opened for
- * reading.
- *
- * @link http://trac.wordpress.org/ticket/5651 Previous Optimizations.
- * @link http://trac.wordpress.org/ticket/7372 Further and better Optimizations.
- * @since 1.5.0
- *
- * @param string $plugin_file Path to the plugin file
- * @param bool $markup If the returned data should have HTML markup applied
- * @param bool $translate If the returned data should be translated
- * @return array See above for description.
- */
-function get_plugin_data( $plugin_file, $markup = true, $translate = true ) {
- // We don't need to write to the file, so just open for reading.
- $fp = fopen($plugin_file, 'r');
-
- // Pull only the first 8kiB of the file in.
- $plugin_data = fread( $fp, 8192 );
-
- // PHP will close file handle, but we are good citizens.
- fclose($fp);
-
- preg_match( '|Plugin Name:(.*)$|mi', $plugin_data, $name );
- preg_match( '|Plugin URI:(.*)$|mi', $plugin_data, $uri );
- preg_match( '|Version:(.*)|i', $plugin_data, $version );
- preg_match( '|Description:(.*)$|mi', $plugin_data, $description );
- preg_match( '|Author:(.*)$|mi', $plugin_data, $author_name );
- preg_match( '|Author URI:(.*)$|mi', $plugin_data, $author_uri );
- preg_match( '|Text Domain:(.*)$|mi', $plugin_data, $text_domain );
- preg_match( '|Domain Path:(.*)$|mi', $plugin_data, $domain_path );
-
- foreach ( array( 'name', 'uri', 'version', 'description', 'author_name', 'author_uri', 'text_domain', 'domain_path' ) as $field ) {
- if ( !empty( ${$field} ) )
- ${$field} = _cleanup_header_comment(${$field}[1]);
- else
- ${$field} = '';
- }
-
- $plugin_data = array(
- 'Name' => $name, 'Title' => $name, 'PluginURI' => $uri, 'Description' => $description,
- 'Author' => $author_name, 'AuthorURI' => $author_uri, 'Version' => $version,
- 'TextDomain' => $text_domain, 'DomainPath' => $domain_path
- );
- if ( $markup || $translate )
- $plugin_data = _get_plugin_data_markup_translate($plugin_file, $plugin_data, $markup, $translate);
-
- return $plugin_data;
-}
-
-function _get_plugin_data_markup_translate($plugin_file, $plugin_data, $markup = true, $translate = true) {
-
- //Translate fields
- if( $translate && ! empty($plugin_data['TextDomain']) ) {
- if( ! empty( $plugin_data['DomainPath'] ) )
- load_plugin_textdomain($plugin_data['TextDomain'], dirname($plugin_file). $plugin_data['DomainPath']);
- else
- load_plugin_textdomain($plugin_data['TextDomain'], dirname($plugin_file));
-
- foreach ( array('Name', 'PluginURI', 'Description', 'Author', 'AuthorURI', 'Version') as $field )
- $plugin_data[ $field ] = translate($plugin_data[ $field ], $plugin_data['TextDomain']);
- }
-
- //Apply Markup
- if ( $markup ) {
- if ( ! empty($plugin_data['PluginURI']) && ! empty($plugin_data['Name']) )
- $plugin_data['Title'] = '' . $plugin_data['Name'] . '';
- else
- $plugin_data['Title'] = $plugin_data['Name'];
-
- if ( ! empty($plugin_data['AuthorURI']) && ! empty($plugin_data['Author']) )
- $plugin_data['Author'] = '' . $plugin_data['Author'] . '';
-
- $plugin_data['Description'] = wptexturize( $plugin_data['Description'] );
- if( ! empty($plugin_data['Author']) )
- $plugin_data['Description'] .= ' ' . sprintf( __('By %s'), $plugin_data['Author'] ) . '.';
- }
-
- $plugins_allowedtags = array('a' => array('href' => array(),'title' => array()),'abbr' => array('title' => array()),'acronym' => array('title' => array()),'code' => array(),'em' => array(),'strong' => array());
-
- // Sanitize all displayed data
- $plugin_data['Title'] = wp_kses($plugin_data['Title'], $plugins_allowedtags);
- $plugin_data['Version'] = wp_kses($plugin_data['Version'], $plugins_allowedtags);
- $plugin_data['Description'] = wp_kses($plugin_data['Description'], $plugins_allowedtags);
- $plugin_data['Author'] = wp_kses($plugin_data['Author'], $plugins_allowedtags);
-
- return $plugin_data;
-}
-
-/**
- * Get a list of a plugin's files.
- *
- * @since 2.8.0
- *
- * @param string $plugin Plugin ID
- * @return array List of files relative to the plugin root.
- */
-function get_plugin_files($plugin) {
- $plugin_file = WP_PLUGIN_DIR . '/' . $plugin;
- $dir = dirname($plugin_file);
- $plugin_files = array($plugin);
- if ( is_dir($dir) && $dir != WP_PLUGIN_DIR ) {
- $plugins_dir = @ opendir( $dir );
- if ( $plugins_dir ) {
- while (($file = readdir( $plugins_dir ) ) !== false ) {
- if ( substr($file, 0, 1) == '.' )
- continue;
- if ( is_dir( $dir . '/' . $file ) ) {
- $plugins_subdir = @ opendir( $dir . '/' . $file );
- if ( $plugins_subdir ) {
- while (($subfile = readdir( $plugins_subdir ) ) !== false ) {
- if ( substr($subfile, 0, 1) == '.' )
- continue;
- $plugin_files[] = plugin_basename("$dir/$file/$subfile");
- }
- @closedir( $plugins_subdir );
- }
- } else {
- if ( plugin_basename("$dir/$file") != $plugin )
- $plugin_files[] = plugin_basename("$dir/$file");
- }
- }
- @closedir( $plugins_dir );
- }
- }
-
- return $plugin_files;
-}
-
-/**
- * Check the plugins directory and retrieve all plugin files with plugin data.
- *
- * WordPress only supports plugin files in the base plugins directory
- * (wp-content/plugins) and in one directory above the plugins directory
- * (wp-content/plugins/my-plugin). The file it looks for has the plugin data and
- * must be found in those two locations. It is recommended that do keep your
- * plugin files in directories.
- *
- * The file with the plugin data is the file that will be included and therefore
- * needs to have the main execution for the plugin. This does not mean
- * everything must be contained in the file and it is recommended that the file
- * be split for maintainability. Keep everything in one file for extreme
- * optimization purposes.
- *
- * @since unknown
- *
- * @param string $plugin_folder Optional. Relative path to single plugin folder.
- * @return array Key is the plugin file path and the value is an array of the plugin data.
- */
-function get_plugins($plugin_folder = '') {
-
- if ( ! $cache_plugins = wp_cache_get('plugins', 'plugins') )
- $cache_plugins = array();
-
- if ( isset($cache_plugins[ $plugin_folder ]) )
- return $cache_plugins[ $plugin_folder ];
-
- $wp_plugins = array ();
- $plugin_root = WP_PLUGIN_DIR;
- if( !empty($plugin_folder) )
- $plugin_root .= $plugin_folder;
-
- // Files in wp-content/plugins directory
- $plugins_dir = @ opendir( $plugin_root);
- $plugin_files = array();
- if ( $plugins_dir ) {
- while (($file = readdir( $plugins_dir ) ) !== false ) {
- if ( substr($file, 0, 1) == '.' )
- continue;
- if ( is_dir( $plugin_root.'/'.$file ) ) {
- $plugins_subdir = @ opendir( $plugin_root.'/'.$file );
- if ( $plugins_subdir ) {
- while (($subfile = readdir( $plugins_subdir ) ) !== false ) {
- if ( substr($subfile, 0, 1) == '.' )
- continue;
- if ( substr($subfile, -4) == '.php' )
- $plugin_files[] = "$file/$subfile";
- }
- }
- } else {
- if ( substr($file, -4) == '.php' )
- $plugin_files[] = $file;
- }
- }
- }
- @closedir( $plugins_dir );
- @closedir( $plugins_subdir );
-
- if ( !$plugins_dir || empty($plugin_files) )
- return $wp_plugins;
-
- foreach ( $plugin_files as $plugin_file ) {
- if ( !is_readable( "$plugin_root/$plugin_file" ) )
- continue;
-
- $plugin_data = get_plugin_data( "$plugin_root/$plugin_file", false, false ); //Do not apply markup/translate as it'll be cached.
-
- if ( empty ( $plugin_data['Name'] ) )
- continue;
-
- $wp_plugins[plugin_basename( $plugin_file )] = $plugin_data;
- }
-
- uasort( $wp_plugins, create_function( '$a, $b', 'return strnatcasecmp( $a["Name"], $b["Name"] );' ));
-
- $cache_plugins[ $plugin_folder ] = $wp_plugins;
- wp_cache_set('plugins', $cache_plugins, 'plugins');
-
- return $wp_plugins;
-}
-
-/**
- * Check whether the plugin is active by checking the active_plugins list.
- *
- * @since 2.5.0
- *
- * @param string $plugin Base plugin path from plugins directory.
- * @return bool True, if in the active plugins list. False, not in the list.
- */
-function is_plugin_active($plugin) {
- return in_array($plugin, get_option('active_plugins'));
-}
-
-/**
- * Attempts activation of plugin in a "sandbox" and redirects on success.
- *
- * A plugin that is already activated will not attempt to be activated again.
- *
- * The way it works is by setting the redirection to the error before trying to
- * include the plugin file. If the plugin fails, then the redirection will not
- * be overwritten with the success message. Also, the options will not be
- * updated and the activation hook will not be called on plugin error.
- *
- * It should be noted that in no way the below code will actually prevent errors
- * within the file. The code should not be used elsewhere to replicate the
- * "sandbox", which uses redirection to work.
- * {@source 13 1}
- *
- * If any errors are found or text is outputted, then it will be captured to
- * ensure that the success redirection will update the error redirection.
- *
- * @since unknown
- *
- * @param string $plugin Plugin path to main plugin file with plugin data.
- * @param string $redirect Optional. URL to redirect to.
- * @return WP_Error|null WP_Error on invalid file or null on success.
- */
-function activate_plugin($plugin, $redirect = '') {
- $current = get_option('active_plugins');
- $plugin = plugin_basename(trim($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(WP_PLUGIN_DIR . '/' . $plugin);
- $current[] = $plugin;
- sort($current);
- update_option('active_plugins', $current);
- do_action('activate_' . $plugin);
- ob_end_clean();
- }
-
- return null;
-}
-
-/**
- * Deactivate a single plugin or multiple plugins.
- *
- * The deactivation hook is disabled by the plugin upgrader by using the $silent
- * parameter.
- *
- * @since unknown
- *
- * @param string|array $plugins Single plugin or list of plugins to deactivate.
- * @param bool $silent Optional, default is false. Prevent calling deactivate hook.
- */
-function deactivate_plugins($plugins, $silent= false) {
- $current = get_option('active_plugins');
-
- if ( !is_array($plugins) )
- $plugins = array($plugins);
-
- foreach ( $plugins as $plugin ) {
- $plugin = plugin_basename($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);
-}
-
-/**
- * Activate multiple plugins.
- *
- * When WP_Error is returned, it does not mean that one of the plugins had
- * errors. It means that one or more of the plugins file path was invalid.
- *
- * The execution will be halted as soon as one of the plugins has an error.
- *
- * @since unknown
- *
- * @param string|array $plugins
- * @param string $redirect Redirect to page after successful activation.
- * @return bool|WP_Error True when finished or WP_Error if there were errors during a plugin activation.
- */
-function activate_plugins($plugins, $redirect = '') {
- if ( !is_array($plugins) )
- $plugins = array($plugins);
-
- $errors = array();
- foreach ( (array) $plugins as $plugin ) {
- if ( !empty($redirect) )
- $redirect = add_query_arg('plugin', $plugin, $redirect);
- $result = activate_plugin($plugin, $redirect);
- if ( is_wp_error($result) )
- $errors[$plugin] = $result;
- }
-
- if ( !empty($errors) )
- return new WP_Error('plugins_invalid', __('One of the plugins is invalid.'), $errors);
-
- return true;
-}
-
-/**
- * Remove directory and files of a plugin for a single or list of plugin(s).
- *
- * If the plugins parameter list is empty, false will be returned. True when
- * completed.
- *
- * @since unknown
- *
- * @param array $plugins List of plugin
- * @param string $redirect Redirect to page when complete.
- * @return mixed
- */
-function delete_plugins($plugins, $redirect = '' ) {
- global $wp_filesystem;
-
- if( empty($plugins) )
- return false;
-
- $checked = array();
- foreach( $plugins as $plugin )
- $checked[] = 'checked[]=' . $plugin;
-
- ob_start();
- $url = wp_nonce_url('plugins.php?action=delete-selected&verify-delete=1&' . implode('&', $checked), 'bulk-manage-plugins');
- if ( false === ($credentials = request_filesystem_credentials($url)) ) {
- $data = ob_get_contents();
- ob_end_clean();
- if( ! empty($data) ){
- include_once( ABSPATH . 'wp-admin/admin-header.php');
- echo $data;
- include( ABSPATH . 'wp-admin/admin-footer.php');
- exit;
- }
- return;
- }
-
- if ( ! WP_Filesystem($credentials) ) {
- request_filesystem_credentials($url, '', true); //Failed to connect, Error and request again
- $data = ob_get_contents();
- ob_end_clean();
- if( ! empty($data) ){
- include_once( ABSPATH . 'wp-admin/admin-header.php');
- echo $data;
- include( ABSPATH . 'wp-admin/admin-footer.php');
- exit;
- }
- return;
- }
-
- if ( ! is_object($wp_filesystem) )
- return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
-
- if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
- return new WP_Error('fs_error', __('Filesystem error'), $wp_filesystem->errors);
-
- //Get the base plugin folder
- $plugins_dir = $wp_filesystem->wp_plugins_dir();
- if ( empty($plugins_dir) )
- return new WP_Error('fs_no_plugins_dir', __('Unable to locate WordPress Plugin directory.'));
-
- $plugins_dir = trailingslashit( $plugins_dir );
-
- $errors = array();
-
- foreach( $plugins as $plugin_file ) {
- // Run Uninstall hook
- if ( is_uninstallable_plugin( $plugin_file ) )
- uninstall_plugin($plugin_file);
-
- $this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin_file) );
- // If plugin is in its own directory, recursively delete the directory.
- if ( strpos($plugin_file, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory seperator AND that its not the root plugin folder
- $deleted = $wp_filesystem->delete($this_plugin_dir, true);
- else
- $deleted = $wp_filesystem->delete($plugins_dir . $plugin_file);
-
- if ( ! $deleted )
- $errors[] = $plugin_file;
- }
-
- if ( ! empty($errors) )
- return new WP_Error('could_not_remove_plugin', sprintf(__('Could not fully remove the plugin(s) %s'), implode(', ', $errors)) );
-
- // Force refresh of plugin update information
- if ( $current = get_transient('update_plugins') ) {
- unset( $current->response[ $plugin_file ] );
- set_transient('update_plugins', $current);
- }
-
- 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;
- }
-
- //Invalid is any plugin that is deactivated due to error.
- $invalid = array();
-
- // If a plugin file does not exist, remove it from the list of active
- // plugins.
- foreach ( $check_plugins as $check_plugin ) {
- $result = validate_plugin($check_plugin);
- if ( is_wp_error( $result ) ) {
- $invalid[$check_plugin] = $result;
- deactivate_plugins( $check_plugin, true);
- }
- }
- return $invalid;
-}
-
-/**
- * Validate the plugin path.
- *
- * Checks that the file exists and {@link validate_file() is valid file}.
- *
- * @since unknown
- *
- * @param string $plugin Plugin Path
- * @return WP_Error|int 0 on success, WP_Error on failure.
- */
-function validate_plugin($plugin) {
- if ( validate_file($plugin) )
- return new WP_Error('plugin_invalid', __('Invalid plugin path.'));
- if ( ! file_exists(WP_PLUGIN_DIR . '/' . $plugin) )
- return new WP_Error('plugin_not_found', __('Plugin file does not exist.'));
-
- $installed_plugins = get_plugins();
- if ( ! isset($installed_plugins[$plugin]) )
- return new WP_Error('no_plugin_header', __('The plugin does not have a valid header.'));
- return 0;
-}
-
-/**
- * Whether the plugin can be uninstalled.
- *
- * @since 2.7.0
- *
- * @param string $plugin Plugin path to check.
- * @return bool Whether plugin can be uninstalled.
- */
-function is_uninstallable_plugin($plugin) {
- $file = plugin_basename($plugin);
-
- $uninstallable_plugins = (array) get_option('uninstall_plugins');
- if ( isset( $uninstallable_plugins[$file] ) || file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) )
- return true;
-
- return false;
-}
-
-/**
- * Uninstall a single plugin.
- *
- * Calls the uninstall hook, if it is available.
- *
- * @since 2.7.0
- *
- * @param string $plugin Relative plugin path from Plugin Directory.
- */
-function uninstall_plugin($plugin) {
- $file = plugin_basename($plugin);
-
- $uninstallable_plugins = (array) get_option('uninstall_plugins');
- if ( file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) ) {
- if ( isset( $uninstallable_plugins[$file] ) ) {
- unset($uninstallable_plugins[$file]);
- update_option('uninstall_plugins', $uninstallable_plugins);
- }
- unset($uninstallable_plugins);
-
- define('WP_UNINSTALL_PLUGIN', $file);
- include WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php';
-
- return true;
- }
-
- if ( isset( $uninstallable_plugins[$file] ) ) {
- $callable = $uninstallable_plugins[$file];
- unset($uninstallable_plugins[$file]);
- update_option('uninstall_plugins', $uninstallable_plugins);
- unset($uninstallable_plugins);
-
- include WP_PLUGIN_DIR . '/' . $file;
-
- add_action( 'uninstall_' . $file, $callable );
- do_action( 'uninstall_' . $file );
- }
-}
-
-//
-// Menu
-//
-
-function add_menu_page( $page_title, $menu_title, $access_level, $file, $function = '', $icon_url = '' ) {
- global $menu, $admin_page_hooks, $_registered_pages;
-
- $file = plugin_basename( $file );
-
- $admin_page_hooks[$file] = sanitize_title( $menu_title );
-
- $hookname = get_plugin_page_hookname( $file, '' );
- if (!empty ( $function ) && !empty ( $hookname ))
- add_action( $hookname, $function );
-
- if ( empty($icon_url) )
- $icon_url = 'images/generic.png';
- elseif ( is_ssl() && 0 === strpos($icon_url, 'http://') )
- $icon_url = 'https://' . substr($icon_url, 7);
-
- $menu[] = array ( $menu_title, $access_level, $file, $page_title, 'menu-top ' . $hookname, $hookname, $icon_url );
-
- $_registered_pages[$hookname] = true;
-
- return $hookname;
-}
-
-function add_object_page( $page_title, $menu_title, $access_level, $file, $function = '', $icon_url = '') {
- global $menu, $admin_page_hooks, $_wp_last_object_menu, $_registered_pages;
-
- $file = plugin_basename( $file );
-
- $admin_page_hooks[$file] = sanitize_title( $menu_title );
-
- $hookname = get_plugin_page_hookname( $file, '' );
- if (!empty ( $function ) && !empty ( $hookname ))
- add_action( $hookname, $function );
-
- if ( empty($icon_url) )
- $icon_url = 'images/generic.png';
-
- $_wp_last_object_menu++;
-
- $menu[$_wp_last_object_menu] = array ( $menu_title, $access_level, $file, $page_title, 'menu-top ' . $hookname, $hookname, $icon_url );
-
- $_registered_pages[$hookname] = true;
-
- return $hookname;
-}
-
-function add_utility_page( $page_title, $menu_title, $access_level, $file, $function = '', $icon_url = '') {
- global $menu, $admin_page_hooks, $_wp_last_utility_menu, $_registered_pages;
-
- $file = plugin_basename( $file );
-
- $admin_page_hooks[$file] = sanitize_title( $menu_title );
-
- $hookname = get_plugin_page_hookname( $file, '' );
- if (!empty ( $function ) && !empty ( $hookname ))
- add_action( $hookname, $function );
-
- if ( empty($icon_url) )
- $icon_url = 'images/generic.png';
- elseif ( is_ssl() && 0 === strpos($icon_url, 'http://') )
- $icon_url = 'https://' . substr($icon_url, 7);
-
- $_wp_last_utility_menu++;
-
- $menu[$_wp_last_utility_menu] = array ( $menu_title, $access_level, $file, $page_title, 'menu-top ' . $hookname, $hookname, $icon_url );
-
- $_registered_pages[$hookname] = true;
-
- return $hookname;
-}
-
-function add_submenu_page( $parent, $page_title, $menu_title, $access_level, $file, $function = '' ) {
- global $submenu;
- global $menu;
- global $_wp_real_parent_file;
- global $_wp_submenu_nopriv;
- global $_registered_pages;
-
- $file = plugin_basename( $file );
-
- $parent = plugin_basename( $parent);
- if ( isset( $_wp_real_parent_file[$parent] ) )
- $parent = $_wp_real_parent_file[$parent];
-
- if ( !current_user_can( $access_level ) ) {
- $_wp_submenu_nopriv[$parent][$file] = true;
- return false;
- }
-
- // If the parent doesn't already have a submenu, add a link to the parent
- // as the first item in the submenu. If the submenu file is the same as the
- // parent file someone is trying to link back to the parent manually. In
- // this case, don't automatically add a link back to avoid duplication.
- if (!isset( $submenu[$parent] ) && $file != $parent ) {
- foreach ( (array)$menu as $parent_menu ) {
- if ( $parent_menu[2] == $parent && current_user_can( $parent_menu[1] ) )
- $submenu[$parent][] = $parent_menu;
- }
- }
-
- $submenu[$parent][] = array ( $menu_title, $access_level, $file, $page_title );
-
- $hookname = get_plugin_page_hookname( $file, $parent);
- if (!empty ( $function ) && !empty ( $hookname ))
- add_action( $hookname, $function );
-
- $_registered_pages[$hookname] = true;
- // backwards-compatibility for plugins using add_management page. See wp-admin/admin.php for redirect from edit.php to tools.php
- if ( 'tools.php' == $parent )
- $_registered_pages[get_plugin_page_hookname( $file, 'edit.php')] = true;
-
- return $hookname;
-}
-
-/**
- * Add sub menu page to the tools main menu.
- *
- * @param string $page_title
- * @param unknown_type $menu_title
- * @param unknown_type $access_level
- * @param unknown_type $file
- * @param unknown_type $function
- * @return unknown
- */
-function add_management_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
- return add_submenu_page( 'tools.php', $page_title, $menu_title, $access_level, $file, $function );
-}
-
-function add_options_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
- return add_submenu_page( 'options-general.php', $page_title, $menu_title, $access_level, $file, $function );
-}
-
-function add_theme_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
- return add_submenu_page( 'themes.php', $page_title, $menu_title, $access_level, $file, $function );
-}
-
-function add_users_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
- if ( current_user_can('edit_users') )
- $parent = 'users.php';
- else
- $parent = 'profile.php';
- return add_submenu_page( $parent, $page_title, $menu_title, $access_level, $file, $function );
-}
-
-function add_dashboard_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
- return add_submenu_page( 'index.php', $page_title, $menu_title, $access_level, $file, $function );
-}
-
-function add_posts_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
- return add_submenu_page( 'edit.php', $page_title, $menu_title, $access_level, $file, $function );
-}
-
-function add_media_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
- return add_submenu_page( 'upload.php', $page_title, $menu_title, $access_level, $file, $function );
-}
-
-function add_links_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
- return add_submenu_page( 'link-manager.php', $page_title, $menu_title, $access_level, $file, $function );
-}
-
-function add_pages_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
- return add_submenu_page( 'edit-pages.php', $page_title, $menu_title, $access_level, $file, $function );
-}
-
-function add_comments_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
- return add_submenu_page( 'edit-comments.php', $page_title, $menu_title, $access_level, $file, $function );
-}
-
-//
-// Pluggable Menu Support -- Private
-//
-
-function get_admin_page_parent( $parent = '' ) {
- global $parent_file;
- global $menu;
- global $submenu;
- global $pagenow;
- global $plugin_page;
- global $_wp_real_parent_file;
- global $_wp_menu_nopriv;
- global $_wp_submenu_nopriv;
-
- if ( !empty ( $parent ) && 'admin.php' != $parent ) {
- if ( isset( $_wp_real_parent_file[$parent] ) )
- $parent = $_wp_real_parent_file[$parent];
- return $parent;
- }
-/*
- if ( !empty ( $parent_file ) ) {
- if ( isset( $_wp_real_parent_file[$parent_file] ) )
- $parent_file = $_wp_real_parent_file[$parent_file];
-
- return $parent_file;
- }
-*/
-
- if ( $pagenow == 'admin.php' && isset( $plugin_page ) ) {
- foreach ( (array)$menu as $parent_menu ) {
- if ( $parent_menu[2] == $plugin_page ) {
- $parent_file = $plugin_page;
- if ( isset( $_wp_real_parent_file[$parent_file] ) )
- $parent_file = $_wp_real_parent_file[$parent_file];
- return $parent_file;
- }
- }
- if ( isset( $_wp_menu_nopriv[$plugin_page] ) ) {
- $parent_file = $plugin_page;
- if ( isset( $_wp_real_parent_file[$parent_file] ) )
- $parent_file = $_wp_real_parent_file[$parent_file];
- return $parent_file;
- }
- }
-
- if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$pagenow][$plugin_page] ) ) {
- $parent_file = $pagenow;
- if ( isset( $_wp_real_parent_file[$parent_file] ) )
- $parent_file = $_wp_real_parent_file[$parent_file];
- return $parent_file;
- }
-
- foreach (array_keys( (array)$submenu ) as $parent) {
- foreach ( $submenu[$parent] as $submenu_array ) {
- if ( isset( $_wp_real_parent_file[$parent] ) )
- $parent = $_wp_real_parent_file[$parent];
- if ( $submenu_array[2] == $pagenow ) {
- $parent_file = $parent;
- return $parent;
- } else
- if ( isset( $plugin_page ) && ($plugin_page == $submenu_array[2] ) ) {
- $parent_file = $parent;
- return $parent;
- }
- }
- }
-
- if ( empty($parent_file) )
- $parent_file = '';
- return '';
-}
-
-function get_admin_page_title() {
- global $title;
- global $menu;
- global $submenu;
- global $pagenow;
- global $plugin_page;
-
- if ( isset( $title ) && !empty ( $title ) ) {
- return $title;
- }
-
- $hook = get_plugin_page_hook( $plugin_page, $pagenow );
-
- $parent = $parent1 = get_admin_page_parent();
-
- if ( empty ( $parent) ) {
- foreach ( (array)$menu as $menu_array ) {
- if ( isset( $menu_array[3] ) ) {
- if ( $menu_array[2] == $pagenow ) {
- $title = $menu_array[3];
- return $menu_array[3];
- } else
- if ( isset( $plugin_page ) && ($plugin_page == $menu_array[2] ) && ($hook == $menu_array[3] ) ) {
- $title = $menu_array[3];
- return $menu_array[3];
- }
- } else {
- $title = $menu_array[0];
- return $title;
- }
- }
- } else {
- foreach (array_keys( $submenu ) as $parent) {
- foreach ( $submenu[$parent] as $submenu_array ) {
- if ( isset( $plugin_page ) &&
- ($plugin_page == $submenu_array[2] ) &&
- (($parent == $pagenow ) || ($parent == $plugin_page ) || ($plugin_page == $hook ) || (($pagenow == 'admin.php' ) && ($parent1 != $submenu_array[2] ) ) )
- ) {
- $title = $submenu_array[3];
- return $submenu_array[3];
- }
-
- if ( $submenu_array[2] != $pagenow || isset( $_GET['page'] ) ) // not the current page
- continue;
-
- if ( isset( $submenu_array[3] ) ) {
- $title = $submenu_array[3];
- return $submenu_array[3];
- } else {
- $title = $submenu_array[0];
- return $title;
- }
- }
- }
- if ( !isset($title) || empty ( $title ) ) {
- foreach ( $menu as $menu_array ) {
- if ( isset( $plugin_page ) &&
- ($plugin_page == $menu_array[2] ) &&
- ($pagenow == 'admin.php' ) &&
- ($parent1 == $menu_array[2] ) )
- {
- $title = $menu_array[3];
- return $menu_array[3];
- }
- }
- }
- }
-
- return $title;
-}
-
-function get_plugin_page_hook( $plugin_page, $parent_page ) {
- $hook = get_plugin_page_hookname( $plugin_page, $parent_page );
- if ( has_action($hook) )
- return $hook;
- else
- return null;
-}
-
-function get_plugin_page_hookname( $plugin_page, $parent_page ) {
- global $admin_page_hooks;
-
- $parent = get_admin_page_parent( $parent_page );
-
- $page_type = 'admin';
- if ( empty ( $parent_page ) || 'admin.php' == $parent_page || isset( $admin_page_hooks[$plugin_page] ) ) {
- if ( isset( $admin_page_hooks[$plugin_page] ) )
- $page_type = 'toplevel';
- else
- if ( isset( $admin_page_hooks[$parent] ))
- $page_type = $admin_page_hooks[$parent];
- } else if ( isset( $admin_page_hooks[$parent] ) ) {
- $page_type = $admin_page_hooks[$parent];
- }
-
- $plugin_name = preg_replace( '!\.php!', '', $plugin_page );
-
- return $page_type.'_page_'.$plugin_name;
-}
-
-function user_can_access_admin_page() {
- global $pagenow;
- global $menu;
- global $submenu;
- global $_wp_menu_nopriv;
- global $_wp_submenu_nopriv;
- global $plugin_page;
- global $_registered_pages;
-
- $parent = get_admin_page_parent();
-
- if ( !isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$parent][$pagenow] ) )
- return false;
-
- if ( isset( $plugin_page ) ) {
- if ( isset( $_wp_submenu_nopriv[$parent][$plugin_page] ) )
- return false;
-
- $hookname = get_plugin_page_hookname($plugin_page, $parent);
- if ( !isset($_registered_pages[$hookname]) )
- return false;
- }
-
- if ( empty( $parent) ) {
- if ( isset( $_wp_menu_nopriv[$pagenow] ) )
- return false;
- if ( isset( $_wp_submenu_nopriv[$pagenow][$pagenow] ) )
- return false;
- if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$pagenow][$plugin_page] ) )
- return false;
- if ( isset( $plugin_page ) && isset( $_wp_menu_nopriv[$plugin_page] ) )
- return false;
- foreach (array_keys( $_wp_submenu_nopriv ) as $key ) {
- if ( isset( $_wp_submenu_nopriv[$key][$pagenow] ) )
- return false;
- if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$key][$plugin_page] ) )
- return false;
- }
- return true;
- }
-
- if ( isset( $plugin_page ) && ( $plugin_page == $parent ) && isset( $_wp_menu_nopriv[$plugin_page] ) )
- return false;
-
- if ( isset( $submenu[$parent] ) ) {
- foreach ( $submenu[$parent] as $submenu_array ) {
- if ( isset( $plugin_page ) && ( $submenu_array[2] == $plugin_page ) ) {
- if ( current_user_can( $submenu_array[1] ))
- return true;
- else
- return false;
- } else if ( $submenu_array[2] == $pagenow ) {
- if ( current_user_can( $submenu_array[1] ))
- return true;
- else
- return false;
- }
- }
- }
-
- foreach ( $menu as $menu_array ) {
- if ( $menu_array[2] == $parent) {
- if ( current_user_can( $menu_array[1] ))
- return true;
- else
- return false;
- }
- }
-
- return true;
-}
-
-/* Whitelist functions */
-
-/**
- * Register a setting and its sanitization callback
- *
- * @since 2.7.0
- *
- * @param string $option_group A settings group name. Can be anything.
- * @param string $option_name The name of an option to sanitize and save.
- * @param unknown_type $sanitize_callback A callback function that sanitizes the option's value.
- * @return unknown
- */
-function register_setting($option_group, $option_name, $sanitize_callback = '') {
- return add_option_update_handler($option_group, $option_name, $sanitize_callback);
-}
-
-/**
- * Unregister a setting
- *
- * @since 2.7.0
- *
- * @param unknown_type $option_group
- * @param unknown_type $option_name
- * @param unknown_type $sanitize_callback
- * @return unknown
- */
-function unregister_setting($option_group, $option_name, $sanitize_callback = '') {
- return remove_option_update_handler($option_group, $option_name, $sanitize_callback);
-}
-
-/**
- * {@internal Missing Short Description}}
- *
- * @since unknown
- *
- * @param unknown_type $option_group
- * @param unknown_type $option_name
- * @param unknown_type $sanitize_callback
- */
-function add_option_update_handler($option_group, $option_name, $sanitize_callback = '') {
- global $new_whitelist_options;
- $new_whitelist_options[ $option_group ][] = $option_name;
- if ( $sanitize_callback != '' )
- add_filter( "sanitize_option_{$option_name}", $sanitize_callback );
-}
-
-/**
- * {@internal Missing Short Description}}
- *
- * @since unknown
- *
- * @param unknown_type $option_group
- * @param unknown_type $option_name
- * @param unknown_type $sanitize_callback
- */
-function remove_option_update_handler($option_group, $option_name, $sanitize_callback = '') {
- global $new_whitelist_options;
- $pos = array_search( $option_name, (array) $new_whitelist_options );
- if ( $pos !== false )
- unset( $new_whitelist_options[ $option_group ][ $pos ] );
- if ( $sanitize_callback != '' )
- remove_filter( "sanitize_option_{$option_name}", $sanitize_callback );
-}
-
-/**
- * {@internal Missing Short Description}}
- *
- * @since unknown
- *
- * @param unknown_type $options
- * @return unknown
- */
-function option_update_filter( $options ) {
- global $new_whitelist_options;
-
- if ( is_array( $new_whitelist_options ) )
- $options = add_option_whitelist( $new_whitelist_options, $options );
-
- return $options;
-}
-add_filter( 'whitelist_options', 'option_update_filter' );
-
-/**
- * {@internal Missing Short Description}}
- *
- * @since unknown
- *
- * @param unknown_type $new_options
- * @param unknown_type $options
- * @return unknown
- */
-function add_option_whitelist( $new_options, $options = '' ) {
- if( $options == '' ) {
- global $whitelist_options;
- } else {
- $whitelist_options = $options;
- }
- foreach( $new_options as $page => $keys ) {
- foreach( $keys as $key ) {
- if ( !isset($whitelist_options[ $page ]) || !is_array($whitelist_options[ $page ]) ) {
- $whitelist_options[ $page ] = array();
- $whitelist_options[ $page ][] = $key;
- } else {
- $pos = array_search( $key, $whitelist_options[ $page ] );
- if ( $pos === false )
- $whitelist_options[ $page ][] = $key;
- }
- }
- }
- return $whitelist_options;
-}
-
-/**
- * {@internal Missing Short Description}}
- *
- * @since unknown
- *
- * @param unknown_type $del_options
- * @param unknown_type $options
- * @return unknown
- */
-function remove_option_whitelist( $del_options, $options = '' ) {
- if( $options == '' ) {
- global $whitelist_options;
- } else {
- $whitelist_options = $options;
- }
- foreach( $del_options as $page => $keys ) {
- foreach( $keys as $key ) {
- if ( isset($whitelist_options[ $page ]) && is_array($whitelist_options[ $page ]) ) {
- $pos = array_search( $key, $whitelist_options[ $page ] );
- if( $pos !== false )
- unset( $whitelist_options[ $page ][ $pos ] );
- }
- }
- }
- return $whitelist_options;
-}
-
-/**
- * Output nonce, action, and option_page fields for a settings page.
- *
- * @since 2.7.0
- *
- * @param string $option_group A settings group name. This should match the group name used in register_setting().
- */
-function settings_fields($option_group) {
- echo "";
- echo '';
- wp_nonce_field("$option_group-options");
-}
-
-?>
+
+ * /*
+ * Plugin Name: Name of Plugin
+ * Plugin URI: Link to plugin information
+ * Description: Plugin Description
+ * Author: Plugin author's name
+ * Author URI: Link to the author's web site
+ * Version: Must be set in the plugin for WordPress 2.3+
+ * Text Domain: Optional. Unique identifier, should be same as the one used in
+ * plugin_text_domain()
+ * Domain Path: Optional. Only useful if the translations are located in a
+ * folder above the plugin's base path. For example, if .mo files are
+ * located in the locale folder then Domain Path will be "/locale/" and
+ * must have the first slash. Defaults to the base folder the plugin is
+ * located in.
+ * * / # Remove the space to close comment
+ *
+ *
+ * Plugin data returned array contains the following:
+ * 'Name' - Name of the plugin, must be unique.
+ * 'Title' - Title of the plugin and the link to the plugin's web site.
+ * 'Description' - Description of what the plugin does and/or notes
+ * from the author.
+ * 'Author' - The author's name
+ * 'AuthorURI' - The authors web site address.
+ * 'Version' - The plugin version number.
+ * 'PluginURI' - Plugin web site address.
+ * 'TextDomain' - Plugin's text domain for localization.
+ * 'DomainPath' - Plugin's relative directory path to .mo files.
+ *
+ * Some users have issues with opening large files and manipulating the contents
+ * for want is usually the first 1kiB or 2kiB. This function stops pulling in
+ * the plugin contents when it has all of the required plugin data.
+ *
+ * The first 8kiB of the file will be pulled in and if the plugin data is not
+ * within that first 8kiB, then the plugin author should correct their plugin
+ * and move the plugin data headers to the top.
+ *
+ * The plugin file is assumed to have permissions to allow for scripts to read
+ * the file. This is not checked however and the file is only opened for
+ * reading.
+ *
+ * @link http://trac.wordpress.org/ticket/5651 Previous Optimizations.
+ * @link http://trac.wordpress.org/ticket/7372 Further and better Optimizations.
+ * @since 1.5.0
+ *
+ * @param string $plugin_file Path to the plugin file
+ * @param bool $markup If the returned data should have HTML markup applied
+ * @param bool $translate If the returned data should be translated
+ * @return array See above for description.
+ */
+function get_plugin_data( $plugin_file, $markup = true, $translate = true ) {
+
+ $default_headers = array(
+ 'Name' => 'Plugin Name',
+ 'PluginURI' => 'Plugin URI',
+ 'Version' => 'Version',
+ 'Description' => 'Description',
+ 'Author' => 'Author',
+ 'AuthorURI' => 'Author URI',
+ 'TextDomain' => 'Text Domain',
+ 'DomainPath' => 'Domain Path'
+ );
+
+ $plugin_data = get_file_data( $plugin_file, $default_headers, 'plugin' );
+
+ //For backward compatibility by default Title is the same as Name.
+ $plugin_data['Title'] = $plugin_data['Name'];
+
+ if ( $markup || $translate )
+ $plugin_data = _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup, $translate );
+
+ return $plugin_data;
+}
+
+function _get_plugin_data_markup_translate($plugin_file, $plugin_data, $markup = true, $translate = true) {
+
+ //Translate fields
+ if( $translate && ! empty($plugin_data['TextDomain']) ) {
+ if( ! empty( $plugin_data['DomainPath'] ) )
+ load_plugin_textdomain($plugin_data['TextDomain'], false, dirname($plugin_file). $plugin_data['DomainPath']);
+ else
+ load_plugin_textdomain($plugin_data['TextDomain'], false, dirname($plugin_file));
+
+ foreach ( array('Name', 'PluginURI', 'Description', 'Author', 'AuthorURI', 'Version') as $field )
+ $plugin_data[ $field ] = translate($plugin_data[ $field ], $plugin_data['TextDomain']);
+ }
+
+ //Apply Markup
+ if ( $markup ) {
+ if ( ! empty($plugin_data['PluginURI']) && ! empty($plugin_data['Name']) )
+ $plugin_data['Title'] = '' . $plugin_data['Name'] . '';
+ else
+ $plugin_data['Title'] = $plugin_data['Name'];
+
+ if ( ! empty($plugin_data['AuthorURI']) && ! empty($plugin_data['Author']) )
+ $plugin_data['Author'] = '' . $plugin_data['Author'] . '';
+
+ $plugin_data['Description'] = wptexturize( $plugin_data['Description'] );
+ if( ! empty($plugin_data['Author']) )
+ $plugin_data['Description'] .= ' ' . sprintf( __('By %s'), $plugin_data['Author'] ) . '.';
+ }
+
+ $plugins_allowedtags = array('a' => array('href' => array(),'title' => array()),'abbr' => array('title' => array()),'acronym' => array('title' => array()),'code' => array(),'em' => array(),'strong' => array());
+
+ // Sanitize all displayed data
+ $plugin_data['Title'] = wp_kses($plugin_data['Title'], $plugins_allowedtags);
+ $plugin_data['Version'] = wp_kses($plugin_data['Version'], $plugins_allowedtags);
+ $plugin_data['Description'] = wp_kses($plugin_data['Description'], $plugins_allowedtags);
+ $plugin_data['Author'] = wp_kses($plugin_data['Author'], $plugins_allowedtags);
+
+ return $plugin_data;
+}
+
+/**
+ * Get a list of a plugin's files.
+ *
+ * @since 2.8.0
+ *
+ * @param string $plugin Plugin ID
+ * @return array List of files relative to the plugin root.
+ */
+function get_plugin_files($plugin) {
+ $plugin_file = WP_PLUGIN_DIR . '/' . $plugin;
+ $dir = dirname($plugin_file);
+ $plugin_files = array($plugin);
+ if ( is_dir($dir) && $dir != WP_PLUGIN_DIR ) {
+ $plugins_dir = @ opendir( $dir );
+ if ( $plugins_dir ) {
+ while (($file = readdir( $plugins_dir ) ) !== false ) {
+ if ( substr($file, 0, 1) == '.' )
+ continue;
+ if ( is_dir( $dir . '/' . $file ) ) {
+ $plugins_subdir = @ opendir( $dir . '/' . $file );
+ if ( $plugins_subdir ) {
+ while (($subfile = readdir( $plugins_subdir ) ) !== false ) {
+ if ( substr($subfile, 0, 1) == '.' )
+ continue;
+ $plugin_files[] = plugin_basename("$dir/$file/$subfile");
+ }
+ @closedir( $plugins_subdir );
+ }
+ } else {
+ if ( plugin_basename("$dir/$file") != $plugin )
+ $plugin_files[] = plugin_basename("$dir/$file");
+ }
+ }
+ @closedir( $plugins_dir );
+ }
+ }
+
+ return $plugin_files;
+}
+
+/**
+ * Check the plugins directory and retrieve all plugin files with plugin data.
+ *
+ * WordPress only supports plugin files in the base plugins directory
+ * (wp-content/plugins) and in one directory above the plugins directory
+ * (wp-content/plugins/my-plugin). The file it looks for has the plugin data and
+ * must be found in those two locations. It is recommended that do keep your
+ * plugin files in directories.
+ *
+ * The file with the plugin data is the file that will be included and therefore
+ * needs to have the main execution for the plugin. This does not mean
+ * everything must be contained in the file and it is recommended that the file
+ * be split for maintainability. Keep everything in one file for extreme
+ * optimization purposes.
+ *
+ * @since unknown
+ *
+ * @param string $plugin_folder Optional. Relative path to single plugin folder.
+ * @return array Key is the plugin file path and the value is an array of the plugin data.
+ */
+function get_plugins($plugin_folder = '') {
+
+ if ( ! $cache_plugins = wp_cache_get('plugins', 'plugins') )
+ $cache_plugins = array();
+
+ if ( isset($cache_plugins[ $plugin_folder ]) )
+ return $cache_plugins[ $plugin_folder ];
+
+ $wp_plugins = array ();
+ $plugin_root = WP_PLUGIN_DIR;
+ if( !empty($plugin_folder) )
+ $plugin_root .= $plugin_folder;
+
+ // Files in wp-content/plugins directory
+ $plugins_dir = @ opendir( $plugin_root);
+ $plugin_files = array();
+ if ( $plugins_dir ) {
+ while (($file = readdir( $plugins_dir ) ) !== false ) {
+ if ( substr($file, 0, 1) == '.' )
+ continue;
+ if ( is_dir( $plugin_root.'/'.$file ) ) {
+ $plugins_subdir = @ opendir( $plugin_root.'/'.$file );
+ if ( $plugins_subdir ) {
+ while (($subfile = readdir( $plugins_subdir ) ) !== false ) {
+ if ( substr($subfile, 0, 1) == '.' )
+ continue;
+ if ( substr($subfile, -4) == '.php' )
+ $plugin_files[] = "$file/$subfile";
+ }
+ }
+ } else {
+ if ( substr($file, -4) == '.php' )
+ $plugin_files[] = $file;
+ }
+ }
+ }
+ @closedir( $plugins_dir );
+ @closedir( $plugins_subdir );
+
+ if ( !$plugins_dir || empty($plugin_files) )
+ return $wp_plugins;
+
+ foreach ( $plugin_files as $plugin_file ) {
+ if ( !is_readable( "$plugin_root/$plugin_file" ) )
+ continue;
+
+ $plugin_data = get_plugin_data( "$plugin_root/$plugin_file", false, false ); //Do not apply markup/translate as it'll be cached.
+
+ if ( empty ( $plugin_data['Name'] ) )
+ continue;
+
+ $wp_plugins[plugin_basename( $plugin_file )] = $plugin_data;
+ }
+
+ uasort( $wp_plugins, create_function( '$a, $b', 'return strnatcasecmp( $a["Name"], $b["Name"] );' ));
+
+ $cache_plugins[ $plugin_folder ] = $wp_plugins;
+ wp_cache_set('plugins', $cache_plugins, 'plugins');
+
+ return $wp_plugins;
+}
+
+/**
+ * Check whether the plugin is active by checking the active_plugins list.
+ *
+ * @since 2.5.0
+ *
+ * @param string $plugin Base plugin path from plugins directory.
+ * @return bool True, if in the active plugins list. False, not in the list.
+ */
+function is_plugin_active($plugin) {
+ return in_array( $plugin, apply_filters( 'active_plugins', get_option( 'active_plugins' ) ) );
+}
+
+/**
+ * Attempts activation of plugin in a "sandbox" and redirects on success.
+ *
+ * A plugin that is already activated will not attempt to be activated again.
+ *
+ * The way it works is by setting the redirection to the error before trying to
+ * include the plugin file. If the plugin fails, then the redirection will not
+ * be overwritten with the success message. Also, the options will not be
+ * updated and the activation hook will not be called on plugin error.
+ *
+ * It should be noted that in no way the below code will actually prevent errors
+ * within the file. The code should not be used elsewhere to replicate the
+ * "sandbox", which uses redirection to work.
+ * {@source 13 1}
+ *
+ * If any errors are found or text is outputted, then it will be captured to
+ * ensure that the success redirection will update the error redirection.
+ *
+ * @since unknown
+ *
+ * @param string $plugin Plugin path to main plugin file with plugin data.
+ * @param string $redirect Optional. URL to redirect to.
+ * @return WP_Error|null WP_Error on invalid file or null on success.
+ */
+function activate_plugin($plugin, $redirect = '') {
+ $current = get_option('active_plugins');
+ $plugin = plugin_basename(trim($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(WP_PLUGIN_DIR . '/' . $plugin);
+ $current[] = $plugin;
+ sort($current);
+ do_action( 'activate_plugin', trim( $plugin) );
+ update_option('active_plugins', $current);
+ do_action( 'activate_' . trim( $plugin ) );
+ do_action( 'activated_plugin', trim( $plugin) );
+ ob_end_clean();
+ }
+
+ return null;
+}
+
+/**
+ * Deactivate a single plugin or multiple plugins.
+ *
+ * The deactivation hook is disabled by the plugin upgrader by using the $silent
+ * parameter.
+ *
+ * @since unknown
+ *
+ * @param string|array $plugins Single plugin or list of plugins to deactivate.
+ * @param bool $silent Optional, default is false. Prevent calling deactivate hook.
+ */
+function deactivate_plugins($plugins, $silent= false) {
+ $current = get_option('active_plugins');
+
+ if ( !is_array($plugins) )
+ $plugins = array($plugins);
+
+ foreach ( $plugins as $plugin ) {
+ $plugin = plugin_basename($plugin);
+ if( ! is_plugin_active($plugin) )
+ continue;
+ if ( ! $silent )
+ do_action( 'deactivate_plugin', trim( $plugin ) );
+
+ $key = array_search( $plugin, (array) $current );
+
+ if ( false !== $key )
+ array_splice( $current, $key, 1 );
+
+ //Used by Plugin updater to internally deactivate plugin, however, not to notify plugins of the fact to prevent plugin output.
+ if ( ! $silent ) {
+ do_action( 'deactivate_' . trim( $plugin ) );
+ do_action( 'deactivated_plugin', trim( $plugin ) );
+ }
+ }
+
+ update_option('active_plugins', $current);
+}
+
+/**
+ * Activate multiple plugins.
+ *
+ * When WP_Error is returned, it does not mean that one of the plugins had
+ * errors. It means that one or more of the plugins file path was invalid.
+ *
+ * The execution will be halted as soon as one of the plugins has an error.
+ *
+ * @since unknown
+ *
+ * @param string|array $plugins
+ * @param string $redirect Redirect to page after successful activation.
+ * @return bool|WP_Error True when finished or WP_Error if there were errors during a plugin activation.
+ */
+function activate_plugins($plugins, $redirect = '') {
+ if ( !is_array($plugins) )
+ $plugins = array($plugins);
+
+ $errors = array();
+ foreach ( (array) $plugins as $plugin ) {
+ if ( !empty($redirect) )
+ $redirect = add_query_arg('plugin', $plugin, $redirect);
+ $result = activate_plugin($plugin, $redirect);
+ if ( is_wp_error($result) )
+ $errors[$plugin] = $result;
+ }
+
+ if ( !empty($errors) )
+ return new WP_Error('plugins_invalid', __('One of the plugins is invalid.'), $errors);
+
+ return true;
+}
+
+/**
+ * Remove directory and files of a plugin for a single or list of plugin(s).
+ *
+ * If the plugins parameter list is empty, false will be returned. True when
+ * completed.
+ *
+ * @since unknown
+ *
+ * @param array $plugins List of plugin
+ * @param string $redirect Redirect to page when complete.
+ * @return mixed
+ */
+function delete_plugins($plugins, $redirect = '' ) {
+ global $wp_filesystem;
+
+ if( empty($plugins) )
+ return false;
+
+ $checked = array();
+ foreach( $plugins as $plugin )
+ $checked[] = 'checked[]=' . $plugin;
+
+ ob_start();
+ $url = wp_nonce_url('plugins.php?action=delete-selected&verify-delete=1&' . implode('&', $checked), 'bulk-manage-plugins');
+ if ( false === ($credentials = request_filesystem_credentials($url)) ) {
+ $data = ob_get_contents();
+ ob_end_clean();
+ if( ! empty($data) ){
+ include_once( ABSPATH . 'wp-admin/admin-header.php');
+ echo $data;
+ include( ABSPATH . 'wp-admin/admin-footer.php');
+ exit;
+ }
+ return;
+ }
+
+ if ( ! WP_Filesystem($credentials) ) {
+ request_filesystem_credentials($url, '', true); //Failed to connect, Error and request again
+ $data = ob_get_contents();
+ ob_end_clean();
+ if( ! empty($data) ){
+ include_once( ABSPATH . 'wp-admin/admin-header.php');
+ echo $data;
+ include( ABSPATH . 'wp-admin/admin-footer.php');
+ exit;
+ }
+ return;
+ }
+
+ if ( ! is_object($wp_filesystem) )
+ return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
+
+ if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
+ return new WP_Error('fs_error', __('Filesystem error'), $wp_filesystem->errors);
+
+ //Get the base plugin folder
+ $plugins_dir = $wp_filesystem->wp_plugins_dir();
+ if ( empty($plugins_dir) )
+ return new WP_Error('fs_no_plugins_dir', __('Unable to locate WordPress Plugin directory.'));
+
+ $plugins_dir = trailingslashit( $plugins_dir );
+
+ $errors = array();
+
+ foreach( $plugins as $plugin_file ) {
+ // Run Uninstall hook
+ if ( is_uninstallable_plugin( $plugin_file ) )
+ uninstall_plugin($plugin_file);
+
+ $this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin_file) );
+ // If plugin is in its own directory, recursively delete the directory.
+ if ( strpos($plugin_file, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory seperator AND that its not the root plugin folder
+ $deleted = $wp_filesystem->delete($this_plugin_dir, true);
+ else
+ $deleted = $wp_filesystem->delete($plugins_dir . $plugin_file);
+
+ if ( ! $deleted )
+ $errors[] = $plugin_file;
+ }
+
+ if ( ! empty($errors) )
+ return new WP_Error('could_not_remove_plugin', sprintf(__('Could not fully remove the plugin(s) %s'), implode(', ', $errors)) );
+
+ // Force refresh of plugin update information
+ if ( $current = get_transient('update_plugins') ) {
+ unset( $current->response[ $plugin_file ] );
+ set_transient('update_plugins', $current);
+ }
+
+ return true;
+}
+
+function validate_active_plugins() {
+ $check_plugins = apply_filters( 'active_plugins', get_option('active_plugins') );
+
+ // Sanity check. If the active plugin list is not an array, make it an
+ // empty array.
+ if ( !is_array($check_plugins) ) {
+ update_option('active_plugins', array());
+ return;
+ }
+
+ //Invalid is any plugin that is deactivated due to error.
+ $invalid = array();
+
+ // If a plugin file does not exist, remove it from the list of active
+ // plugins.
+ foreach ( $check_plugins as $check_plugin ) {
+ $result = validate_plugin($check_plugin);
+ if ( is_wp_error( $result ) ) {
+ $invalid[$check_plugin] = $result;
+ deactivate_plugins( $check_plugin, true);
+ }
+ }
+ return $invalid;
+}
+
+/**
+ * Validate the plugin path.
+ *
+ * Checks that the file exists and {@link validate_file() is valid file}.
+ *
+ * @since unknown
+ *
+ * @param string $plugin Plugin Path
+ * @return WP_Error|int 0 on success, WP_Error on failure.
+ */
+function validate_plugin($plugin) {
+ if ( validate_file($plugin) )
+ return new WP_Error('plugin_invalid', __('Invalid plugin path.'));
+ if ( ! file_exists(WP_PLUGIN_DIR . '/' . $plugin) )
+ return new WP_Error('plugin_not_found', __('Plugin file does not exist.'));
+
+ $installed_plugins = get_plugins();
+ if ( ! isset($installed_plugins[$plugin]) )
+ return new WP_Error('no_plugin_header', __('The plugin does not have a valid header.'));
+ return 0;
+}
+
+/**
+ * Whether the plugin can be uninstalled.
+ *
+ * @since 2.7.0
+ *
+ * @param string $plugin Plugin path to check.
+ * @return bool Whether plugin can be uninstalled.
+ */
+function is_uninstallable_plugin($plugin) {
+ $file = plugin_basename($plugin);
+
+ $uninstallable_plugins = (array) get_option('uninstall_plugins');
+ if ( isset( $uninstallable_plugins[$file] ) || file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) )
+ return true;
+
+ return false;
+}
+
+/**
+ * Uninstall a single plugin.
+ *
+ * Calls the uninstall hook, if it is available.
+ *
+ * @since 2.7.0
+ *
+ * @param string $plugin Relative plugin path from Plugin Directory.
+ */
+function uninstall_plugin($plugin) {
+ $file = plugin_basename($plugin);
+
+ $uninstallable_plugins = (array) get_option('uninstall_plugins');
+ if ( file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) ) {
+ if ( isset( $uninstallable_plugins[$file] ) ) {
+ unset($uninstallable_plugins[$file]);
+ update_option('uninstall_plugins', $uninstallable_plugins);
+ }
+ unset($uninstallable_plugins);
+
+ define('WP_UNINSTALL_PLUGIN', $file);
+ include WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php';
+
+ return true;
+ }
+
+ if ( isset( $uninstallable_plugins[$file] ) ) {
+ $callable = $uninstallable_plugins[$file];
+ unset($uninstallable_plugins[$file]);
+ update_option('uninstall_plugins', $uninstallable_plugins);
+ unset($uninstallable_plugins);
+
+ include WP_PLUGIN_DIR . '/' . $file;
+
+ add_action( 'uninstall_' . $file, $callable );
+ do_action( 'uninstall_' . $file );
+ }
+}
+
+//
+// Menu
+//
+
+function add_menu_page( $page_title, $menu_title, $access_level, $file, $function = '', $icon_url = '', $position = NULL ) {
+ global $menu, $admin_page_hooks, $_registered_pages;
+
+ $file = plugin_basename( $file );
+
+ $admin_page_hooks[$file] = sanitize_title( $menu_title );
+
+ $hookname = get_plugin_page_hookname( $file, '' );
+ if (!empty ( $function ) && !empty ( $hookname ))
+ add_action( $hookname, $function );
+
+ if ( empty($icon_url) ) {
+ $icon_url = 'images/generic.png';
+ } elseif ( is_ssl() && 0 === strpos($icon_url, 'http://') ) {
+ $icon_url = 'https://' . substr($icon_url, 7);
+ }
+
+ $new_menu = array ( $menu_title, $access_level, $file, $page_title, 'menu-top ' . $hookname, $hookname, $icon_url );
+
+ if ( NULL === $position ) {
+ $menu[] = $new_menu;
+ } else {
+ $menu[$position] = $new_menu;
+ }
+
+ $_registered_pages[$hookname] = true;
+
+ return $hookname;
+}
+
+function add_object_page( $page_title, $menu_title, $access_level, $file, $function = '', $icon_url = '') {
+ global $_wp_last_object_menu;
+
+ $_wp_last_object_menu++;
+
+ return add_menu_page($page_title, $menu_title, $access_level, $file, $function, $icon_url, $_wp_last_object_menu);
+}
+
+function add_utility_page( $page_title, $menu_title, $access_level, $file, $function = '', $icon_url = '') {
+ global $_wp_last_utility_menu;
+
+ $_wp_last_utility_menu++;
+
+ return add_menu_page($page_title, $menu_title, $access_level, $file, $function, $icon_url, $_wp_last_utility_menu);
+}
+
+function add_submenu_page( $parent, $page_title, $menu_title, $access_level, $file, $function = '' ) {
+ global $submenu;
+ global $menu;
+ global $_wp_real_parent_file;
+ global $_wp_submenu_nopriv;
+ global $_registered_pages;
+
+ $file = plugin_basename( $file );
+
+ $parent = plugin_basename( $parent);
+ if ( isset( $_wp_real_parent_file[$parent] ) )
+ $parent = $_wp_real_parent_file[$parent];
+
+ if ( !current_user_can( $access_level ) ) {
+ $_wp_submenu_nopriv[$parent][$file] = true;
+ return false;
+ }
+
+ // If the parent doesn't already have a submenu, add a link to the parent
+ // as the first item in the submenu. If the submenu file is the same as the
+ // parent file someone is trying to link back to the parent manually. In
+ // this case, don't automatically add a link back to avoid duplication.
+ if (!isset( $submenu[$parent] ) && $file != $parent ) {
+ foreach ( (array)$menu as $parent_menu ) {
+ if ( $parent_menu[2] == $parent && current_user_can( $parent_menu[1] ) )
+ $submenu[$parent][] = $parent_menu;
+ }
+ }
+
+ $submenu[$parent][] = array ( $menu_title, $access_level, $file, $page_title );
+
+ $hookname = get_plugin_page_hookname( $file, $parent);
+ if (!empty ( $function ) && !empty ( $hookname ))
+ add_action( $hookname, $function );
+
+ $_registered_pages[$hookname] = true;
+ // backwards-compatibility for plugins using add_management page. See wp-admin/admin.php for redirect from edit.php to tools.php
+ if ( 'tools.php' == $parent )
+ $_registered_pages[get_plugin_page_hookname( $file, 'edit.php')] = true;
+
+ return $hookname;
+}
+
+/**
+ * Add sub menu page to the tools main menu.
+ *
+ * @param string $page_title
+ * @param unknown_type $menu_title
+ * @param unknown_type $access_level
+ * @param unknown_type $file
+ * @param unknown_type $function
+ * @return unknown
+ */
+function add_management_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
+ return add_submenu_page( 'tools.php', $page_title, $menu_title, $access_level, $file, $function );
+}
+
+function add_options_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
+ return add_submenu_page( 'options-general.php', $page_title, $menu_title, $access_level, $file, $function );
+}
+
+function add_theme_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
+ return add_submenu_page( 'themes.php', $page_title, $menu_title, $access_level, $file, $function );
+}
+
+function add_users_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
+ if ( current_user_can('edit_users') )
+ $parent = 'users.php';
+ else
+ $parent = 'profile.php';
+ return add_submenu_page( $parent, $page_title, $menu_title, $access_level, $file, $function );
+}
+
+function add_dashboard_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
+ return add_submenu_page( 'index.php', $page_title, $menu_title, $access_level, $file, $function );
+}
+
+function add_posts_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
+ return add_submenu_page( 'edit.php', $page_title, $menu_title, $access_level, $file, $function );
+}
+
+function add_media_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
+ return add_submenu_page( 'upload.php', $page_title, $menu_title, $access_level, $file, $function );
+}
+
+function add_links_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
+ return add_submenu_page( 'link-manager.php', $page_title, $menu_title, $access_level, $file, $function );
+}
+
+function add_pages_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
+ return add_submenu_page( 'edit-pages.php', $page_title, $menu_title, $access_level, $file, $function );
+}
+
+function add_comments_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
+ return add_submenu_page( 'edit-comments.php', $page_title, $menu_title, $access_level, $file, $function );
+}
+
+//
+// Pluggable Menu Support -- Private
+//
+
+function get_admin_page_parent( $parent = '' ) {
+ global $parent_file;
+ global $menu;
+ global $submenu;
+ global $pagenow;
+ global $plugin_page;
+ global $_wp_real_parent_file;
+ global $_wp_menu_nopriv;
+ global $_wp_submenu_nopriv;
+
+ if ( !empty ( $parent ) && 'admin.php' != $parent ) {
+ if ( isset( $_wp_real_parent_file[$parent] ) )
+ $parent = $_wp_real_parent_file[$parent];
+ return $parent;
+ }
+/*
+ if ( !empty ( $parent_file ) ) {
+ if ( isset( $_wp_real_parent_file[$parent_file] ) )
+ $parent_file = $_wp_real_parent_file[$parent_file];
+
+ return $parent_file;
+ }
+*/
+
+ if ( $pagenow == 'admin.php' && isset( $plugin_page ) ) {
+ foreach ( (array)$menu as $parent_menu ) {
+ if ( $parent_menu[2] == $plugin_page ) {
+ $parent_file = $plugin_page;
+ if ( isset( $_wp_real_parent_file[$parent_file] ) )
+ $parent_file = $_wp_real_parent_file[$parent_file];
+ return $parent_file;
+ }
+ }
+ if ( isset( $_wp_menu_nopriv[$plugin_page] ) ) {
+ $parent_file = $plugin_page;
+ if ( isset( $_wp_real_parent_file[$parent_file] ) )
+ $parent_file = $_wp_real_parent_file[$parent_file];
+ return $parent_file;
+ }
+ }
+
+ if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$pagenow][$plugin_page] ) ) {
+ $parent_file = $pagenow;
+ if ( isset( $_wp_real_parent_file[$parent_file] ) )
+ $parent_file = $_wp_real_parent_file[$parent_file];
+ return $parent_file;
+ }
+
+ foreach (array_keys( (array)$submenu ) as $parent) {
+ foreach ( $submenu[$parent] as $submenu_array ) {
+ if ( isset( $_wp_real_parent_file[$parent] ) )
+ $parent = $_wp_real_parent_file[$parent];
+ if ( $submenu_array[2] == $pagenow ) {
+ $parent_file = $parent;
+ return $parent;
+ } else
+ if ( isset( $plugin_page ) && ($plugin_page == $submenu_array[2] ) ) {
+ $parent_file = $parent;
+ return $parent;
+ }
+ }
+ }
+
+ if ( empty($parent_file) )
+ $parent_file = '';
+ return '';
+}
+
+function get_admin_page_title() {
+ global $title;
+ global $menu;
+ global $submenu;
+ global $pagenow;
+ global $plugin_page;
+
+ if ( isset( $title ) && !empty ( $title ) ) {
+ return $title;
+ }
+
+ $hook = get_plugin_page_hook( $plugin_page, $pagenow );
+
+ $parent = $parent1 = get_admin_page_parent();
+
+ if ( empty ( $parent) ) {
+ foreach ( (array)$menu as $menu_array ) {
+ if ( isset( $menu_array[3] ) ) {
+ if ( $menu_array[2] == $pagenow ) {
+ $title = $menu_array[3];
+ return $menu_array[3];
+ } else
+ if ( isset( $plugin_page ) && ($plugin_page == $menu_array[2] ) && ($hook == $menu_array[3] ) ) {
+ $title = $menu_array[3];
+ return $menu_array[3];
+ }
+ } else {
+ $title = $menu_array[0];
+ return $title;
+ }
+ }
+ } else {
+ foreach (array_keys( $submenu ) as $parent) {
+ foreach ( $submenu[$parent] as $submenu_array ) {
+ if ( isset( $plugin_page ) &&
+ ($plugin_page == $submenu_array[2] ) &&
+ (($parent == $pagenow ) || ($parent == $plugin_page ) || ($plugin_page == $hook ) || (($pagenow == 'admin.php' ) && ($parent1 != $submenu_array[2] ) ) )
+ ) {
+ $title = $submenu_array[3];
+ return $submenu_array[3];
+ }
+
+ if ( $submenu_array[2] != $pagenow || isset( $_GET['page'] ) ) // not the current page
+ continue;
+
+ if ( isset( $submenu_array[3] ) ) {
+ $title = $submenu_array[3];
+ return $submenu_array[3];
+ } else {
+ $title = $submenu_array[0];
+ return $title;
+ }
+ }
+ }
+ if ( !isset($title) || empty ( $title ) ) {
+ foreach ( $menu as $menu_array ) {
+ if ( isset( $plugin_page ) &&
+ ($plugin_page == $menu_array[2] ) &&
+ ($pagenow == 'admin.php' ) &&
+ ($parent1 == $menu_array[2] ) )
+ {
+ $title = $menu_array[3];
+ return $menu_array[3];
+ }
+ }
+ }
+ }
+
+ return $title;
+}
+
+function get_plugin_page_hook( $plugin_page, $parent_page ) {
+ $hook = get_plugin_page_hookname( $plugin_page, $parent_page );
+ if ( has_action($hook) )
+ return $hook;
+ else
+ return null;
+}
+
+function get_plugin_page_hookname( $plugin_page, $parent_page ) {
+ global $admin_page_hooks;
+
+ $parent = get_admin_page_parent( $parent_page );
+
+ $page_type = 'admin';
+ if ( empty ( $parent_page ) || 'admin.php' == $parent_page || isset( $admin_page_hooks[$plugin_page] ) ) {
+ if ( isset( $admin_page_hooks[$plugin_page] ) )
+ $page_type = 'toplevel';
+ else
+ if ( isset( $admin_page_hooks[$parent] ))
+ $page_type = $admin_page_hooks[$parent];
+ } else if ( isset( $admin_page_hooks[$parent] ) ) {
+ $page_type = $admin_page_hooks[$parent];
+ }
+
+ $plugin_name = preg_replace( '!\.php!', '', $plugin_page );
+
+ return $page_type.'_page_'.$plugin_name;
+}
+
+function user_can_access_admin_page() {
+ global $pagenow;
+ global $menu;
+ global $submenu;
+ global $_wp_menu_nopriv;
+ global $_wp_submenu_nopriv;
+ global $plugin_page;
+ global $_registered_pages;
+
+ $parent = get_admin_page_parent();
+
+ if ( !isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$parent][$pagenow] ) )
+ return false;
+
+ if ( isset( $plugin_page ) ) {
+ if ( isset( $_wp_submenu_nopriv[$parent][$plugin_page] ) )
+ return false;
+
+ $hookname = get_plugin_page_hookname($plugin_page, $parent);
+ if ( !isset($_registered_pages[$hookname]) )
+ return false;
+ }
+
+ if ( empty( $parent) ) {
+ if ( isset( $_wp_menu_nopriv[$pagenow] ) )
+ return false;
+ if ( isset( $_wp_submenu_nopriv[$pagenow][$pagenow] ) )
+ return false;
+ if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$pagenow][$plugin_page] ) )
+ return false;
+ if ( isset( $plugin_page ) && isset( $_wp_menu_nopriv[$plugin_page] ) )
+ return false;
+ foreach (array_keys( $_wp_submenu_nopriv ) as $key ) {
+ if ( isset( $_wp_submenu_nopriv[$key][$pagenow] ) )
+ return false;
+ if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$key][$plugin_page] ) )
+ return false;
+ }
+ return true;
+ }
+
+ if ( isset( $plugin_page ) && ( $plugin_page == $parent ) && isset( $_wp_menu_nopriv[$plugin_page] ) )
+ return false;
+
+ if ( isset( $submenu[$parent] ) ) {
+ foreach ( $submenu[$parent] as $submenu_array ) {
+ if ( isset( $plugin_page ) && ( $submenu_array[2] == $plugin_page ) ) {
+ if ( current_user_can( $submenu_array[1] ))
+ return true;
+ else
+ return false;
+ } else if ( $submenu_array[2] == $pagenow ) {
+ if ( current_user_can( $submenu_array[1] ))
+ return true;
+ else
+ return false;
+ }
+ }
+ }
+
+ foreach ( $menu as $menu_array ) {
+ if ( $menu_array[2] == $parent) {
+ if ( current_user_can( $menu_array[1] ))
+ return true;
+ else
+ return false;
+ }
+ }
+
+ return true;
+}
+
+/* Whitelist functions */
+
+/**
+ * Register a setting and its sanitization callback
+ *
+ * @since 2.7.0
+ *
+ * @param string $option_group A settings group name. Should correspond to a whitelisted option key name.
+ * Default whitelisted option key names include "general," "discussion," and "reading," among others.
+ * @param string $option_name The name of an option to sanitize and save.
+ * @param unknown_type $sanitize_callback A callback function that sanitizes the option's value.
+ * @return unknown
+ */
+function register_setting($option_group, $option_name, $sanitize_callback = '') {
+ return add_option_update_handler($option_group, $option_name, $sanitize_callback);
+}
+
+/**
+ * Unregister a setting
+ *
+ * @since 2.7.0
+ *
+ * @param unknown_type $option_group
+ * @param unknown_type $option_name
+ * @param unknown_type $sanitize_callback
+ * @return unknown
+ */
+function unregister_setting($option_group, $option_name, $sanitize_callback = '') {
+ return remove_option_update_handler($option_group, $option_name, $sanitize_callback);
+}
+
+/**
+ * {@internal Missing Short Description}}
+ *
+ * @since unknown
+ *
+ * @param unknown_type $option_group
+ * @param unknown_type $option_name
+ * @param unknown_type $sanitize_callback
+ */
+function add_option_update_handler($option_group, $option_name, $sanitize_callback = '') {
+ global $new_whitelist_options;
+ $new_whitelist_options[ $option_group ][] = $option_name;
+ if ( $sanitize_callback != '' )
+ add_filter( "sanitize_option_{$option_name}", $sanitize_callback );
+}
+
+/**
+ * {@internal Missing Short Description}}
+ *
+ * @since unknown
+ *
+ * @param unknown_type $option_group
+ * @param unknown_type $option_name
+ * @param unknown_type $sanitize_callback
+ */
+function remove_option_update_handler($option_group, $option_name, $sanitize_callback = '') {
+ global $new_whitelist_options;
+ $pos = array_search( $option_name, (array) $new_whitelist_options );
+ if ( $pos !== false )
+ unset( $new_whitelist_options[ $option_group ][ $pos ] );
+ if ( $sanitize_callback != '' )
+ remove_filter( "sanitize_option_{$option_name}", $sanitize_callback );
+}
+
+/**
+ * {@internal Missing Short Description}}
+ *
+ * @since unknown
+ *
+ * @param unknown_type $options
+ * @return unknown
+ */
+function option_update_filter( $options ) {
+ global $new_whitelist_options;
+
+ if ( is_array( $new_whitelist_options ) )
+ $options = add_option_whitelist( $new_whitelist_options, $options );
+
+ return $options;
+}
+add_filter( 'whitelist_options', 'option_update_filter' );
+
+/**
+ * {@internal Missing Short Description}}
+ *
+ * @since unknown
+ *
+ * @param unknown_type $new_options
+ * @param unknown_type $options
+ * @return unknown
+ */
+function add_option_whitelist( $new_options, $options = '' ) {
+ if( $options == '' ) {
+ global $whitelist_options;
+ } else {
+ $whitelist_options = $options;
+ }
+ foreach( $new_options as $page => $keys ) {
+ foreach( $keys as $key ) {
+ if ( !isset($whitelist_options[ $page ]) || !is_array($whitelist_options[ $page ]) ) {
+ $whitelist_options[ $page ] = array();
+ $whitelist_options[ $page ][] = $key;
+ } else {
+ $pos = array_search( $key, $whitelist_options[ $page ] );
+ if ( $pos === false )
+ $whitelist_options[ $page ][] = $key;
+ }
+ }
+ }
+ return $whitelist_options;
+}
+
+/**
+ * {@internal Missing Short Description}}
+ *
+ * @since unknown
+ *
+ * @param unknown_type $del_options
+ * @param unknown_type $options
+ * @return unknown
+ */
+function remove_option_whitelist( $del_options, $options = '' ) {
+ if( $options == '' ) {
+ global $whitelist_options;
+ } else {
+ $whitelist_options = $options;
+ }
+ foreach( $del_options as $page => $keys ) {
+ foreach( $keys as $key ) {
+ if ( isset($whitelist_options[ $page ]) && is_array($whitelist_options[ $page ]) ) {
+ $pos = array_search( $key, $whitelist_options[ $page ] );
+ if( $pos !== false )
+ unset( $whitelist_options[ $page ][ $pos ] );
+ }
+ }
+ }
+ return $whitelist_options;
+}
+
+/**
+ * Output nonce, action, and option_page fields for a settings page.
+ *
+ * @since 2.7.0
+ *
+ * @param string $option_group A settings group name. This should match the group name used in register_setting().
+ */
+function settings_fields($option_group) {
+ echo "";
+ echo '';
+ wp_nonce_field("$option_group-options");
+}
+
+?>