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wp-seo-main.php
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wp-seo-main.php
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<?php
/**
* @package Main
*/
if ( ! function_exists( 'add_filter' ) ) {
header( 'Status: 403 Forbidden' );
header( 'HTTP/1.1 403 Forbidden' );
exit();
}
/**
* @internal Nobody should be able to overrule the real version number as this can cause serious issues
* with the options, so no if ( ! defined() )
*/
define( 'WPSEO_VERSION', '1.6.3' );
if ( ! defined( 'WPSEO_PATH' ) ) {
define( 'WPSEO_PATH', plugin_dir_path( WPSEO_FILE ) );
}
if ( ! defined( 'WPSEO_BASENAME' ) ) {
define( 'WPSEO_BASENAME', plugin_basename( WPSEO_FILE ) );
}
if ( ! defined( 'WPSEO_CSSJS_SUFFIX' ) ) {
define( 'WPSEO_CSSJS_SUFFIX', ( ( defined( 'SCRIPT_DEBUG' ) && true === SCRIPT_DEBUG ) ? '' : '.min' ) );
}
/* ***************************** CLASS AUTOLOADING *************************** */
/**
* Auto load our class files
*
* @param string $class Class name
* @return void
*/
function wpseo_auto_load( $class ) {
static $classes = null;
if ( $classes === null ) {
$classes = array(
'wpseo_admin' => WPSEO_PATH . 'admin/class-admin.php',
'wpseo_bulk_title_editor_list_table' => WPSEO_PATH . 'admin/class-bulk-title-editor-list-table.php',
'wpseo_bulk_description_list_table' => WPSEO_PATH . 'admin/class-bulk-description-editor-list-table.php',
'wpseo_bulk_list_table' => WPSEO_PATH . 'admin/class-bulk-editor-list-table.php',
'wpseo_admin_pages' => WPSEO_PATH . 'admin/class-config.php',
'wpseo_metabox' => WPSEO_PATH . 'admin/class-metabox.php',
'wpseo_snippet_preview' => WPSEO_PATH . 'admin/class-snippet-preview.php',
'wpseo_social_admin' => WPSEO_PATH . 'admin/class-opengraph-admin.php',
'wpseo_pointers' => WPSEO_PATH . 'admin/class-pointers.php',
'wpseo_sitemaps_admin' => WPSEO_PATH . 'admin/class-sitemaps-admin.php',
'wpseo_taxonomy' => WPSEO_PATH . 'admin/class-taxonomy.php',
'yoast_tracking' => WPSEO_PATH . 'admin/class-tracking.php',
'yoast_textstatistics' => WPSEO_PATH . 'admin/TextStatistics.php',
'wpseo_breadcrumbs' => WPSEO_PATH . 'frontend/class-breadcrumbs.php',
'wpseo_frontend' => WPSEO_PATH . 'frontend/class-frontend.php',
'wpseo_opengraph' => WPSEO_PATH . 'frontend/class-opengraph.php',
'wpseo_twitter' => WPSEO_PATH . 'frontend/class-twitter.php',
'wpseo_googleplus' => WPSEO_PATH . 'frontend/class-googleplus.php',
'wpseo_rewrite' => WPSEO_PATH . 'inc/class-rewrite.php',
'wpseo_sitemaps' => WPSEO_PATH . 'inc/class-sitemaps.php',
'wpseo_options' => WPSEO_PATH . 'inc/class-wpseo-options.php',
'wpseo_option' => WPSEO_PATH . 'inc/class-wpseo-options.php',
'wpseo_option_wpseo' => WPSEO_PATH . 'inc/class-wpseo-options.php',
'wpseo_option_permalinks' => WPSEO_PATH . 'inc/class-wpseo-options.php',
'wpseo_option_titles' => WPSEO_PATH . 'inc/class-wpseo-options.php',
'wpseo_option_social' => WPSEO_PATH . 'inc/class-wpseo-options.php',
'wpseo_option_rss' => WPSEO_PATH . 'inc/class-wpseo-options.php',
'wpseo_option_internallinks' => WPSEO_PATH . 'inc/class-wpseo-options.php',
'wpseo_option_xml' => WPSEO_PATH . 'inc/class-wpseo-options.php',
'wpseo_option_ms' => WPSEO_PATH . 'inc/class-wpseo-options.php',
'wpseo_taxonomy_meta' => WPSEO_PATH . 'inc/class-wpseo-options.php',
'wpseo_meta' => WPSEO_PATH . 'inc/class-wpseo-meta.php',
'wpseo_replace_vars' => WPSEO_PATH . 'inc/class-wpseo-replace-vars.php',
'yoast_license_manager' => WPSEO_PATH . 'admin/license-manager/class-license-manager.php',
'yoast_plugin_license_manager' => WPSEO_PATH . 'admin/license-manager/class-plugin-license-manager.php',
'yoast_product' => WPSEO_PATH . 'admin/license-manager/class-product.php',
'yoast_notification_center' => WPSEO_PATH . 'admin/class-yoast-notification-center.php',
'yoast_notification' => WPSEO_PATH . 'admin/class-yoast-notification.php',
'wp_list_table' => ABSPATH . 'wp-admin/includes/class-wp-list-table.php',
'walker_category' => ABSPATH . 'wp-includes/category-template.php',
'pclzip' => ABSPATH . 'wp-admin/includes/class-pclzip.php',
);
}
$cn = strtolower( $class );
if ( isset( $classes[ $cn ] ) ) {
require_once( $classes[ $cn ] );
}
}
if ( function_exists( 'spl_autoload_register' ) ) {
spl_autoload_register( 'wpseo_auto_load' );
}
/* ***************************** PLUGIN (DE-)ACTIVATION *************************** */
/**
* Run single site / network-wide activation of the plugin.
*
* @param bool $networkwide Whether the plugin is being activated network-wide
*/
function wpseo_activate( $networkwide = false ) {
if ( ! is_multisite() || ! $networkwide ) {
_wpseo_activate();
}
else {
/* Multi-site network activation - activate the plugin for all blogs */
wpseo_network_activate_deactivate( true );
}
}
/**
* Run single site / network-wide de-activation of the plugin.
*
* @param bool $networkwide Whether the plugin is being de-activated network-wide
*/
function wpseo_deactivate( $networkwide = false ) {
if ( ! is_multisite() || ! $networkwide ) {
_wpseo_deactivate();
}
else {
/* Multi-site network activation - de-activate the plugin for all blogs */
wpseo_network_activate_deactivate( false );
}
}
/**
* Run network-wide (de-)activation of the plugin
*
* @param bool $activate True for plugin activation, false for de-activation
*/
function wpseo_network_activate_deactivate( $activate = true ) {
global $wpdb;
$original_blog_id = get_current_blog_id(); // alternatively use: $wpdb->blogid
$all_blogs = $wpdb->get_col( "SELECT blog_id FROM $wpdb->blogs" );
if ( is_array( $all_blogs ) && $all_blogs !== array() ) {
foreach ( $all_blogs as $blog_id ) {
switch_to_blog( $blog_id );
if ( $activate === true ) {
_wpseo_activate();
}
else {
_wpseo_deactivate();
}
}
// Restore back to original blog
switch_to_blog( $original_blog_id );
}
}
/**
* Runs on activation of the plugin.
*/
function _wpseo_activate() {
require_once( WPSEO_PATH . 'inc/wpseo-functions.php' );
wpseo_load_textdomain(); // Make sure we have our translations available for the defaults
WPSEO_Options::get_instance();
if ( ! is_multisite() ) {
WPSEO_Options::initialize();
}
else {
WPSEO_Options::maybe_set_multisite_defaults( true );
}
WPSEO_Options::ensure_options_exist();
flush_rewrite_rules();
wpseo_add_capabilities();
WPSEO_Options::schedule_yoast_tracking( null, get_option( 'wpseo' ) );
// Clear cache so the changes are obvious.
WPSEO_Options::clear_cache();
do_action( 'wpseo_activate' );
}
/**
* On deactivation, flush the rewrite rules so XML sitemaps stop working.
*/
function _wpseo_deactivate() {
require_once( WPSEO_PATH . 'inc/wpseo-functions.php' );
flush_rewrite_rules();
wpseo_remove_capabilities();
// Force unschedule
WPSEO_Options::schedule_yoast_tracking( null, get_option( 'wpseo' ), true );
// Clear cache so the changes are obvious.
WPSEO_Options::clear_cache();
do_action( 'wpseo_deactivate' );
}
/**
* Run wpseo activation routine on creation / activation of a multisite blog if WPSEO is activated
* network-wide.
*
* Will only be called by multisite actions.
* @internal Unfortunately will fail if the plugin is in the must-use directory
* @see https://core.trac.wordpress.org/ticket/24205
*/
function wpseo_on_activate_blog( $blog_id ) {
if ( ! function_exists( 'is_plugin_active_for_network' ) ) {
require_once( ABSPATH . '/wp-admin/includes/plugin.php' );
}
if ( is_plugin_active_for_network( plugin_basename( WPSEO_FILE ) ) ) {
switch_to_blog( $blog_id );
wpseo_activate( false );
restore_current_blog();
}
}
/* ***************************** PLUGIN LOADING *************************** */
/**
* Load translations
*/
function wpseo_load_textdomain() {
load_plugin_textdomain( 'wordpress-seo', false, dirname( plugin_basename( WPSEO_FILE ) ) . '/languages/' );
}
add_action( 'init', 'wpseo_load_textdomain', 1 );
/**
* On plugins_loaded: load the minimum amount of essential files for this plugin
*/
function wpseo_init() {
require_once( WPSEO_PATH . 'inc/wpseo-functions.php' );
// Make sure our option and meta value validation routines and default values are always registered and available
WPSEO_Options::get_instance();
WPSEO_Meta::init();
$option_wpseo = get_option( 'wpseo' );
if ( version_compare( $option_wpseo['version'], WPSEO_VERSION, '<' ) ) {
wpseo_do_upgrade( $option_wpseo['version'] );
}
$options = WPSEO_Options::get_all();
if ( $options['stripcategorybase'] === true ) {
$GLOBALS['wpseo_rewrite'] = new WPSEO_Rewrite;
}
if ( $options['enablexmlsitemap'] === true ) {
$GLOBALS['wpseo_sitemaps'] = new WPSEO_Sitemaps;
}
if ( ! defined( 'DOING_AJAX' ) || ! DOING_AJAX ) {
require_once( WPSEO_PATH . 'inc/wpseo-non-ajax-functions.php' );
}
}
/**
* Used to load the required files on the plugins_loaded hook, instead of immediately.
*/
function wpseo_frontend_init() {
add_action( 'init', 'initialize_wpseo_front' );
$options = WPSEO_Options::get_all();
if ( $options['breadcrumbs-enable'] === true ) {
/**
* If breadcrumbs are active (which they supposedly are if the users has enabled this settings,
* there's no reason to have bbPress breadcrumbs as well.
*
* @internal The class itself is only loaded when the template tag is encountered via
* the template tag function in the wpseo-functions.php file
*/
add_filter( 'bbp_get_breadcrumb', '__return_false' );
}
add_action( 'template_redirect', 'wpseo_frontend_head_init', 999 );
}
/**
* Instantiate the different social classes on the frontend
*/
function wpseo_frontend_head_init() {
$options = WPSEO_Options::get_all();
if ( $options['twitter'] === true && is_singular() ) {
add_action( 'wpseo_head', array( 'WPSEO_Twitter', 'get_instance' ), 40 );
}
if ( $options['opengraph'] === true ) {
$GLOBALS['wpseo_og'] = new WPSEO_OpenGraph;
}
if ( $options['googleplus'] === true && is_singular() ) {
add_action( 'wpseo_head', array( 'WPSEO_GooglePlus', 'get_instance' ), 35 );
}
}
/**
* Used to load the required files on the plugins_loaded hook, instead of immediately.
*/
function wpseo_admin_init() {
global $pagenow;
$GLOBALS['wpseo_admin'] = new WPSEO_Admin;
$options = WPSEO_Options::get_all();
if ( isset( $_GET['wpseo_restart_tour'] ) ) {
$options['ignore_tour'] = false;
update_option( 'wpseo', $options );
}
if ( $options['yoast_tracking'] === true ) {
/**
* @internal this is not a proper lean loading implementation (method_exist will autoload the class),
* but it can't be helped as there are other plugins out there which also use versions
* of the Yoast Tracking class and we need to take that into account unfortunately
*/
if ( method_exists( 'Yoast_Tracking', 'get_instance' ) ) {
add_action( 'yoast_tracking', array( 'Yoast_Tracking', 'get_instance' ) );
}
else {
$GLOBALS['yoast_tracking'] = new Yoast_Tracking;
}
}
/**
* Filter: 'wpseo_always_register_metaboxes_on_admin' - Allow developers to change whether
* the WPSEO metaboxes are only registered on the typical pages (lean loading) or always
* registered when in admin.
*
* @api bool Whether to always register the metaboxes or not. Defaults to false.
*/
if ( in_array( $pagenow, array( 'edit.php', 'post.php', 'post-new.php' ) ) || apply_filters( 'wpseo_always_register_metaboxes_on_admin', false ) ) {
$GLOBALS['wpseo_metabox'] = new WPSEO_Metabox;
if ( $options['opengraph'] === true ) {
$GLOBALS['wpseo_social'] = new WPSEO_Social_Admin;
}
}
if ( in_array( $pagenow, array( 'edit-tags.php' ) ) ) {
$GLOBALS['wpseo_taxonomy'] = new WPSEO_Taxonomy;
}
if ( in_array( $pagenow, array( 'admin.php' ) ) ) {
// @todo [JRF => whomever] Can we load this more selectively ? like only when $_GET['page'] is one of ours ?
$GLOBALS['wpseo_admin_pages'] = new WPSEO_Admin_Pages;
}
if ( $options['tracking_popup_done'] === false || $options['ignore_tour'] === false ) {
add_action( 'admin_enqueue_scripts', array( 'WPSEO_Pointers', 'get_instance' ) );
}
if ( $options['enablexmlsitemap'] === true ) {
$GLOBALS['wpseo_sitemaps_admin'] = new WPSEO_Sitemaps_Admin;
}
}
/* ***************************** BOOTSTRAP / HOOK INTO WP *************************** */
if ( ! function_exists( 'spl_autoload_register' ) ) {
add_action( 'admin_init', 'yoast_wpseo_self_deactivate', 1 );
}
else if ( ! defined( 'WP_INSTALLING' ) || WP_INSTALLING === false ) {
add_action( 'plugins_loaded', 'wpseo_init', 14 );
if ( is_admin() ) {
if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
require_once( WPSEO_PATH . 'admin/ajax.php' );
}
else {
add_action( 'plugins_loaded', 'wpseo_admin_init', 15 );
}
}
else {
add_action( 'plugins_loaded', 'wpseo_frontend_init', 15 );
}
add_action( 'admin_init', 'load_yoast_notifications' );
}
// Activation and deactivation hook
register_activation_hook( WPSEO_FILE, 'wpseo_activate' );
register_deactivation_hook( WPSEO_FILE, 'wpseo_deactivate' );
add_action( 'wpmu_new_blog', 'wpseo_on_activate_blog' );
add_action( 'activate_blog', 'wpseo_on_activate_blog' );
function load_yoast_notifications() {
// Init Yoast_Notification_Center class
Yoast_Notification_Center::get();
}
/**
* Throw an error if the PHP SPL extension is disabled (prevent white screens) and self-deactivate plugin
*
* @since 1.5.4
*
* @param string Error message
* @return void
*/
function yoast_wpseo_self_deactivate() {
if ( is_admin() ) {
$message = esc_html__( 'The Standard PHP Library (SPL) extension seem to be unavailable. Please ask your web host to enable it.', 'wordpress-seo' );
add_action( 'admin_notices', create_function( $message, 'echo \'<div class="error"><p>\' . __( \'Activation failed:\', \'wordpress-seo\' ) . \' \' . $message . \'</p></div>\';' ) );
deactivate_plugins( plugin_basename( WPSEO_FILE ) );
if ( isset( $_GET['activate'] ) ) {
unset( $_GET['activate'] );
}
}
}