<?php
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',
'Network' => 'Network',
'_sitewide' => 'Site Wide Only',
);
$plugin_data = get_file_data( $plugin_file, $default_headers, 'plugin' );
if ( ! $plugin_data['Network'] && $plugin_data['_sitewide'] ) {
_deprecated_argument( __FUNCTION__, '3.0.0', sprintf( __( 'The %1$s plugin header is deprecated. Use %2$s instead.' ), '<code>Site Wide Only: true</code>', '<code>Network: true</code>' ) );
$plugin_data['Network'] = $plugin_data['_sitewide'];
}
$plugin_data['Network'] = ( 'true' == strtolower( $plugin_data['Network'] ) );
unset( $plugin_data['_sitewide'] );
if ( ! $plugin_data['TextDomain'] ) {
$plugin_slug = dirname( plugin_basename( $plugin_file ) );
if ( '.' !== $plugin_slug && false === strpos( $plugin_slug, '/' ) ) {
$plugin_data['TextDomain'] = $plugin_slug;
}
}
if ( $markup || $translate ) {
$plugin_data = _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup, $translate );
} else {
$plugin_data['Title'] = $plugin_data['Name'];
$plugin_data['AuthorName'] = $plugin_data['Author'];
}
return $plugin_data;
}
function _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup = true, $translate = true ) {
$plugin_file = plugin_basename( $plugin_file );
if ( $translate ) {
if ( $textdomain = $plugin_data['TextDomain'] ) {
if ( ! is_textdomain_loaded( $textdomain ) ) {
if ( $plugin_data['DomainPath'] ) {
load_plugin_textdomain( $textdomain, false, dirname( $plugin_file ) . $plugin_data['DomainPath'] );
} else {
load_plugin_textdomain( $textdomain, false, dirname( $plugin_file ) );
}
}
} elseif ( 'hello.php' == basename( $plugin_file ) ) {
$textdomain = 'default';
}
if ( $textdomain ) {
foreach ( array( 'Name', 'PluginURI', 'Description', 'Author', 'AuthorURI', 'Version' ) as $field )
$plugin_data[ $field ] = translate( $plugin_data[ $field ], $textdomain );
}
}
$allowed_tags = $allowed_tags_in_links = array(
'abbr' => array( 'title' => true ),
'acronym' => array( 'title' => true ),
'code' => true,
'em' => true,
'strong' => true,
);
$allowed_tags['a'] = array( 'href' => true, 'title' => true );
$plugin_data['Name'] = wp_kses( $plugin_data['Name'], $allowed_tags_in_links );
$plugin_data['Author'] = wp_kses( $plugin_data['Author'], $allowed_tags );
$plugin_data['Description'] = wp_kses( $plugin_data['Description'], $allowed_tags );
$plugin_data['Version'] = wp_kses( $plugin_data['Version'], $allowed_tags );
$plugin_data['PluginURI'] = esc_url( $plugin_data['PluginURI'] );
$plugin_data['AuthorURI'] = esc_url( $plugin_data['AuthorURI'] );
$plugin_data['Title'] = $plugin_data['Name'];
$plugin_data['AuthorName'] = $plugin_data['Author'];
if ( $markup ) {
if ( $plugin_data['PluginURI'] && $plugin_data['Name'] )
$plugin_data['Title'] = '<a href="' . $plugin_data['PluginURI'] . '">' . $plugin_data['Name'] . '</a>';
if ( $plugin_data['AuthorURI'] && $plugin_data['Author'] )
$plugin_data['Author'] = '<a href="' . $plugin_data['AuthorURI'] . '">' . $plugin_data['Author'] . '</a>';
$plugin_data['Description'] = wptexturize( $plugin_data['Description'] );
if ( $plugin_data['Author'] )
$plugin_data['Description'] .= ' <cite>' . sprintf( __('By %s.'), $plugin_data['Author'] ) . '</cite>';
}
return $plugin_data;
}
function get_plugin_files($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 $plugin_files;
}
function get_plugins($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;
$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";
}
closedir( $plugins_subdir );
}
} else {
if ( substr($file, -4) == '.php' )
$plugin_files[] = $file;
}
}
closedir( $plugins_dir );
}
if ( empty($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 );
if ( empty ( $plugin_data['Name'] ) )
continue;
$wp_plugins[plugin_basename( $plugin_file )] = $plugin_data;
}
uasort( $wp_plugins, '_sort_uname_callback' );
$cache_plugins[ $plugin_folder ] = $wp_plugins;
wp_cache_set('plugins', $cache_plugins, 'plugins');
return $wp_plugins;
}
function get_mu_plugins() {
$wp_plugins = array();
$plugin_files = array();
if ( ! is_dir( WPMU_PLUGIN_DIR ) )
return $wp_plugins;
if ( $plugins_dir = @ opendir( WPMU_PLUGIN_DIR ) ) {
while ( ( $file = readdir( $plugins_dir ) ) !== false ) {
if ( substr( $file, -4 ) == '.php' )
$plugin_files[] = $file;
}
} else {
return $wp_plugins;
}
@closedir( $plugins_dir );
if ( empty($plugin_files) )
return $wp_plugins;
foreach ( $plugin_files as $plugin_file ) {
if ( !is_readable( WPMU_PLUGIN_DIR . "/$plugin_file" ) )
continue;
$plugin_data = get_plugin_data( WPMU_PLUGIN_DIR . "/$plugin_file", false, false );
if ( empty ( $plugin_data['Name'] ) )
$plugin_data['Name'] = $plugin_file;
$wp_plugins[ $plugin_file ] = $plugin_data;
}
if ( isset( $wp_plugins['index.php'] ) && filesize( WPMU_PLUGIN_DIR . '/index.php') <= 30 )
unset( $wp_plugins['index.php'] );
uasort( $wp_plugins, '_sort_uname_callback' );
return $wp_plugins;
}
function _sort_uname_callback( $a, $b ) {
return strnatcasecmp( $a['Name'], $b['Name'] );
}
function get_dropins() {
$dropins = array();
$plugin_files = array();
$_dropins = _get_dropins();
if ( $plugins_dir = @ opendir( WP_CONTENT_DIR ) ) {
while ( ( $file = readdir( $plugins_dir ) ) !== false ) {
if ( isset( $_dropins[ $file ] ) )
$plugin_files[] = $file;
}
} else {
return $dropins;
}
@closedir( $plugins_dir );
if ( empty($plugin_files) )
return $dropins;
foreach ( $plugin_files as $plugin_file ) {
if ( !is_readable( WP_CONTENT_DIR . "/$plugin_file" ) )
continue;
$plugin_data = get_plugin_data( WP_CONTENT_DIR . "/$plugin_file", false, false );
if ( empty( $plugin_data['Name'] ) )
$plugin_data['Name'] = $plugin_file;
$dropins[ $plugin_file ] = $plugin_data;
}
uksort( $dropins, 'strnatcasecmp' );
return $dropins;
}
function _get_dropins() {
$dropins = array(
'advanced-cache.php' => array( __( 'Advanced caching plugin.' ), 'WP_CACHE' ),
'db.php' => array( __( 'Custom database class.' ), true ),
'db-error.php' => array( __( 'Custom database error message.' ), true ),
'install.php' => array( __( 'Custom install script.' ), true ),
'maintenance.php' => array( __( 'Custom maintenance message.' ), true ),
'object-cache.php' => array( __( 'External object cache.' ), true ),
);
if ( is_multisite() ) {
$dropins['sunrise.php' ] = array( __( 'Executed before Multisite is loaded.' ), 'SUNRISE' );
$dropins['blog-deleted.php' ] = array( __( 'Custom site deleted message.' ), true );
$dropins['blog-inactive.php' ] = array( __( 'Custom site inactive message.' ), true );
$dropins['blog-suspended.php'] = array( __( 'Custom site suspended message.' ), true );
}
return $dropins;
}
function is_plugin_active( $plugin ) {
return in_array( $plugin, (array) get_option( 'active_plugins', array() ) ) || is_plugin_active_for_network( $plugin );
}
function is_plugin_inactive( $plugin ) {
return ! is_plugin_active( $plugin );
}
function is_plugin_active_for_network( $plugin ) {
if ( !is_multisite() )
return false;
$plugins = get_site_option( 'active_sitewide_plugins');
if ( isset($plugins[$plugin]) )
return true;
return false;
}
function is_network_only_plugin( $plugin ) {
$plugin_data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin );
if ( $plugin_data )
return $plugin_data['Network'];
return false;
}
function activate_plugin( $plugin, $redirect = '', $network_wide = false, $silent = false ) {
$plugin = plugin_basename( trim( $plugin ) );
if ( is_multisite() && ( $network_wide || is_network_only_plugin($plugin) ) ) {
$network_wide = true;
$current = get_site_option( 'active_sitewide_plugins', array() );
$_GET['networkwide'] = 1;
} else {
$current = get_option( 'active_plugins', array() );
}
$valid = validate_plugin($plugin);
if ( is_wp_error($valid) )
return $valid;
if ( ( $network_wide && ! isset( $current[ $plugin ] ) ) || ( ! $network_wide && ! in_array( $plugin, $current ) ) ) {
if ( !empty($redirect) )
wp_redirect(add_query_arg('_error_nonce', wp_create_nonce('plugin-activation-error_' . $plugin), $redirect));
ob_start();
wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $plugin );
$_wp_plugin_file = $plugin;
include_once( WP_PLUGIN_DIR . '/' . $plugin );
$plugin = $_wp_plugin_file;
if ( ! $silent ) {
do_action( 'activate_plugin', $plugin, $network_wide );
do_action( "activate_{$plugin}", $network_wide );
}
if ( $network_wide ) {
$current = get_site_option( 'active_sitewide_plugins', array() );
$current[$plugin] = time();
update_site_option( 'active_sitewide_plugins', $current );
} else {
$current = get_option( 'active_plugins', array() );
$current[] = $plugin;
sort($current);
update_option('active_plugins', $current);
}
if ( ! $silent ) {
do_action( 'activated_plugin', $plugin, $network_wide );
}
if ( ob_get_length() > 0 ) {
$output = ob_get_clean();
return new WP_Error('unexpected_output', __('The plugin generated unexpected output.'), $output);
}
ob_end_clean();
}
return null;
}
function deactivate_plugins( $plugins, $silent = false, $network_wide = null ) {
if ( is_multisite() )
$network_current = get_site_option( 'active_sitewide_plugins', array() );
$current = get_option( 'active_plugins', array() );
$do_blog = $do_network = false;
foreach ( (array) $plugins as $plugin ) {
$plugin = plugin_basename( trim( $plugin ) );
if ( ! is_plugin_active($plugin) )
continue;
$network_deactivating = false !== $network_wide && is_plugin_active_for_network( $plugin );
if ( ! $silent ) {
do_action( 'deactivate_plugin', $plugin, $network_deactivating );
}
if ( false !== $network_wide ) {
if ( is_plugin_active_for_network( $plugin ) ) {
$do_network = true;
unset( $network_current[ $plugin ] );
} elseif ( $network_wide ) {
continue;
}
}
if ( true !== $network_wide ) {
$key = array_search( $plugin, $current );
if ( false !== $key ) {
$do_blog = true;
unset( $current[ $key ] );
}
}
if ( ! $silent ) {
do_action( "deactivate_{$plugin}", $network_deactivating );
do_action( 'deactivated_plugin', $plugin, $network_deactivating );
}
}
if ( $do_blog )
update_option('active_plugins', $current);
if ( $do_network )
update_site_option( 'active_sitewide_plugins', $network_current );
}
function activate_plugins( $plugins, $redirect = '', $network_wide = false, $silent = false ) {
if ( !is_array($plugins) )
$plugins = array($plugins);
$errors = array();
foreach ( $plugins as $plugin ) {
if ( !empty($redirect) )
$redirect = add_query_arg('plugin', $plugin, $redirect);
$result = activate_plugin($plugin, $redirect, $network_wide, $silent);
if ( is_wp_error($result) )
$errors[$plugin] = $result;
}
if ( !empty($errors) )
return new WP_Error('plugins_invalid', __('One of the plugins is invalid.'), $errors);
return true;
}
function delete_plugins( $plugins, $deprecated = '' ) {
global $wp_filesystem;
if ( empty($plugins) )
return false;
$checked = array();
foreach ( $plugins as $plugin )
$checked[] = 'checked[]=' . $plugin;
$url = wp_nonce_url('plugins.php?action=delete-selected&verify-delete=1&' . implode('&', $checked), 'bulk-plugins');
ob_start();
$credentials = request_filesystem_credentials( $url );
$data = ob_get_clean();
if ( false === $credentials ) {
if ( ! empty($data) ) {
include_once( ABSPATH . 'wp-admin/admin-header.php');
echo $data;
include( ABSPATH . 'wp-admin/admin-footer.php');
exit;
}
return;
}
if ( ! WP_Filesystem( $credentials ) ) {
ob_start();
request_filesystem_credentials( $url, '', true );
$data = ob_get_clean();
if ( ! empty($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);
$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 );
$plugin_translations = wp_get_installed_translations( 'plugins' );
$errors = array();
foreach ( $plugins as $plugin_file ) {
if ( is_uninstallable_plugin( $plugin_file ) ) {
uninstall_plugin($plugin_file);
}
do_action( 'delete_plugin', $plugin_file );
$this_plugin_dir = trailingslashit( dirname( $plugins_dir . $plugin_file ) );
if ( strpos( $plugin_file, '/' ) && $this_plugin_dir != $plugins_dir ) {
$deleted = $wp_filesystem->delete( $this_plugin_dir, true );
} else {
$deleted = $wp_filesystem->delete( $plugins_dir . $plugin_file );
}
do_action( 'deleted_plugin', $plugin_file, $deleted );
if ( ! $deleted ) {
$errors[] = $plugin_file;
continue;
}
$plugin_slug = dirname( $plugin_file );
if ( '.' !== $plugin_slug && ! empty( $plugin_translations[ $plugin_slug ] ) ) {
$translations = $plugin_translations[ $plugin_slug ];
foreach ( $translations as $translation => $data ) {
$wp_filesystem->delete( WP_LANG_DIR . '/plugins/' . $plugin_slug . '-' . $translation . '.po' );
$wp_filesystem->delete( WP_LANG_DIR . '/plugins/' . $plugin_slug . '-' . $translation . '.mo' );
}
}
}
if ( $current = get_site_transient('update_plugins') ) {
$deleted = array_diff( $plugins, $errors );
foreach ( $deleted as $plugin_file ) {
unset( $current->response[ $plugin_file ] );
}
set_site_transient( 'update_plugins', $current );
}
if ( ! empty($errors) )
return new WP_Error('could_not_remove_plugin', sprintf(__('Could not fully remove the plugin(s) %s.'), implode(', ', $errors)) );
return true;
}
function validate_active_plugins() {
$plugins = get_option( 'active_plugins', array() );
if ( ! is_array( $plugins ) ) {
update_option( 'active_plugins', array() );
$plugins = array();
}
if ( is_multisite() && current_user_can( 'manage_network_plugins' ) ) {
$network_plugins = (array) get_site_option( 'active_sitewide_plugins', array() );
$plugins = array_merge( $plugins, array_keys( $network_plugins ) );
}
if ( empty( $plugins ) )
return array();
$invalid = array();
foreach ( $plugins as $plugin ) {
$result = validate_plugin( $plugin );
if ( is_wp_error( $result ) ) {
$invalid[$plugin] = $result;
deactivate_plugins( $plugin, true );
}
}
return $invalid;
}
function validate_plugin($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[$plugin]) )
return new WP_Error('no_plugin_header', __('The plugin does not have a valid header.'));
return 0;
}
function is_uninstallable_plugin($plugin) {
$file = plugin_basename($plugin);
$uninstallable_plugins = (array) get_option('uninstall_plugins');
if ( isset( $uninstallable_plugins[$file] ) || file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) )
return true;
return false;
}
function uninstall_plugin($plugin) {
$file = plugin_basename($plugin);
$uninstallable_plugins = (array) get_option('uninstall_plugins');
do_action( 'pre_uninstall_plugin', $plugin, $uninstallable_plugins );
if ( file_exists( WP_PLUGIN_DIR . '/' . dirname($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);
wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $file );
include( WP_PLUGIN_DIR . '/' . dirname($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);
wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $file );
include( WP_PLUGIN_DIR . '/' . $file );
add_action( 'uninstall_' . $file, $callable );
do_action( 'uninstall_' . $file );
}
}
function add_menu_page( $page_title, $menu_title, $capability, $menu_slug, $function = '', $icon_url = '', $position = null ) {
global $menu, $admin_page_hooks, $_registered_pages, $_parent_pages;
$menu_slug = plugin_basename( $menu_slug );
$admin_page_hooks[$menu_slug] = sanitize_title( $menu_title );
$hookname = get_plugin_page_hookname( $menu_slug, '' );
if ( !empty( $function ) && !empty( $hookname ) && current_user_can( $capability ) )
add_action( $hookname, $function );
if ( empty($icon_url) ) {
$icon_url = 'dashicons-admin-generic';
$icon_class = 'menu-icon-generic ';
} else {
$icon_url = set_url_scheme( $icon_url );
$icon_class = '';
}
$new_menu = array( $menu_title, $capability, $menu_slug, $page_title, 'menu-top ' . $icon_class . $hookname, $hookname, $icon_url );
if ( null === $position ) {
$menu[] = $new_menu;
} elseif ( isset( $menu[ "$position" ] ) ) {
$position = $position + substr( base_convert( md5( $menu_slug . $menu_title ), 16, 10 ) , -5 ) * 0.00001;
$menu[ "$position" ] = $new_menu;
} else {
$menu[ $position ] = $new_menu;
}
$_registered_pages[$hookname] = true;
$_parent_pages[$menu_slug] = false;
return $hookname;
}
function add_submenu_page( $parent_slug, $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
global $submenu, $menu, $_wp_real_parent_file, $_wp_submenu_nopriv,
$_registered_pages, $_parent_pages;
$menu_slug = plugin_basename( $menu_slug );
$parent_slug = plugin_basename( $parent_slug);
if ( isset( $_wp_real_parent_file[$parent_slug] ) )
$parent_slug = $_wp_real_parent_file[$parent_slug];
if ( !current_user_can( $capability ) ) {
$_wp_submenu_nopriv[$parent_slug][$menu_slug] = true;
return false;
}
if (!isset( $submenu[$parent_slug] ) && $menu_slug != $parent_slug ) {
foreach ( (array)$menu as $parent_menu ) {
if ( $parent_menu[2] == $parent_slug && current_user_can( $parent_menu[1] ) )
$submenu[$parent_slug][] = array_slice( $parent_menu, 0, 4 );
}
}
$submenu[$parent_slug][] = array ( $menu_title, $capability, $menu_slug, $page_title );
$hookname = get_plugin_page_hookname( $menu_slug, $parent_slug);
if (!empty ( $function ) && !empty ( $hookname ))
add_action( $hookname, $function );
$_registered_pages[$hookname] = true;
if ( 'tools.php' == $parent_slug )
$_registered_pages[get_plugin_page_hookname( $menu_slug, 'edit.php')] = true;
.
$_parent_pages[$menu_slug] = $parent_slug;
return $hookname;
}
function add_management_page( $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
return add_submenu_page( 'tools.php', $page_title, $menu_title, $capability, $menu_slug, $function );
}
function add_options_page( $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
return add_submenu_page( 'options-general.php', $page_title, $menu_title, $capability, $menu_slug, $function );
}
function add_theme_page( $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
return add_submenu_page( 'themes.php', $page_title, $menu_title, $capability, $menu_slug, $function );
}
function add_plugins_page( $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
return add_submenu_page( 'plugins.php', $page_title, $menu_title, $capability, $menu_slug, $function );
}
function add_users_page( $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
if ( current_user_can('edit_users') )
$parent = 'users.php';
else
$parent = 'profile.php';
return add_submenu_page( $parent, $page_title, $menu_title, $capability, $menu_slug, $function );
}
function add_dashboard_page( $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
return add_submenu_page( 'index.php', $page_title, $menu_title, $capability, $menu_slug, $function );
}
function add_posts_page( $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
return add_submenu_page( 'edit.php', $page_title, $menu_title, $capability, $menu_slug, $function );
}
function add_media_page( $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
return add_submenu_page( 'upload.php', $page_title, $menu_title, $capability, $menu_slug, $function );
}
function add_links_page( $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
return add_submenu_page( 'link-manager.php', $page_title, $menu_title, $capability, $menu_slug, $function );
}
function add_pages_page( $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
return add_submenu_page( 'edit.php?post_type=page', $page_title, $menu_title, $capability, $menu_slug, $function );
}
function add_comments_page( $page_title, $menu_title, $capability, $menu_slug, $function = '' ) {
return add_submenu_page( 'edit-comments.php', $page_title, $menu_title, $capability, $menu_slug, $function );
}
function remove_menu_page( $menu_slug ) {
global $menu;
foreach ( $menu as $i => $item ) {
if ( $menu_slug == $item[2] ) {
unset( $menu[$i] );
return $item;
}
}
return false;
}
function remove_submenu_page( $menu_slug, $submenu_slug ) {
global $submenu;
if ( !isset( $submenu[$menu_slug] ) )
return false;
foreach ( $submenu[$menu_slug] as $i => $item ) {
if ( $submenu_slug == $item[2] ) {
unset( $submenu[$menu_slug][$i] );
return $item;
}
}
return false;
}
function menu_page_url($menu_slug, $echo = true) {
global $_parent_pages;
if ( isset( $_parent_pages[$menu_slug] ) ) {
$parent_slug = $_parent_pages[$menu_slug];
if ( $parent_slug && ! isset( $_parent_pages[$parent_slug] ) ) {
$url = admin_url( add_query_arg( 'page', $menu_slug, $parent_slug ) );
} else {
$url = admin_url( 'admin.php?page=' . $menu_slug );
}
} else {
$url = '';
}
$url = esc_url($url);
if ( $echo )
echo $url;
return $url;
}
// Pluggable Menu Support -- Private
/**
*
* @global string $parent_file
* @global array $menu
* @global array $submenu
* @global string $pagenow
* @global string $typenow
* @global string $plugin_page
* @global array $_wp_real_parent_file
* @global array $_wp_menu_nopriv
* @global array $_wp_submenu_nopriv
*/
function get_admin_page_parent( $parent = '' ) {
global $parent_file, $menu, $submenu, $pagenow, $typenow,
$plugin_page, $_wp_real_parent_file, $_wp_menu_nopriv, $_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 ( $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 ( !empty($typenow) && ($submenu_array[2] == "$pagenow?post_type=$typenow") ) {
$parent_file = $parent;
return $parent;
} elseif ( $submenu_array[2] == $pagenow && empty($typenow) && ( empty($parent_file) || false === strpos($parent_file, '?') ) ) {
$parent_file = $parent;
return $parent;
} elseif ( 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, $menu, $submenu, $pagenow, $plugin_page, $typenow;
if ( ! 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];
} elseif ( 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 != $submenu_array[2] ) ||
( !empty($typenow) && $parent == $pagenow . '?post_type=' . $typenow)
)
) {
$title = $submenu_array[3];
return $submenu_array[3];
}
if ( $submenu_array[2] != $pagenow || isset( $_GET['page'] ) )
continue;
if ( isset( $submenu_array[3] ) ) {
$title = $submenu_array[3];
return $submenu_array[3];
} else {
$title = $submenu_array[0];
return $title;
}
}
}
if ( 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';
} elseif ( isset( $admin_page_hooks[$parent] )) {
$page_type = $admin_page_hooks[$parent];
}
} elseif ( 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, $menu, $submenu, $_wp_menu_nopriv, $_wp_submenu_nopriv,
$plugin_page, $_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;
} elseif ( $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;
}
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;
}
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;
}
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 $whitelist_options;
}
function settings_fields($option_group) {
echo "<input type='hidden' name='option_page' value='" . esc_attr($option_group) . "' />";
echo '<input type="hidden" name="action" value="update" />';
wp_nonce_field("$option_group-options");
}
function wp_clean_plugins_cache( $clear_update_cache = true ) {
if ( $clear_update_cache )
delete_site_transient( 'update_plugins' );
wp_cache_delete( 'plugins', 'plugins' );
}
function plugin_sandbox_scrape( $plugin ) {
wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $plugin );
include( WP_PLUGIN_DIR . '/' . $plugin );
}