Viewing file:  wp-seo-main.php (11.77 KB) -rw-rw-rw-
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<?php
/**
* @package WPSEO\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', '2.2.1' );
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(
'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 ( ! class_exists( $class ) && isset( $classes[ $cn ] ) ) {
require_once( $classes[ $cn ] );
}
}
if ( file_exists( WPSEO_PATH . '/vendor/autoload_52.php' ) ) {
require WPSEO_PATH . '/vendor/autoload_52.php';
}
elseif ( ! class_exists( 'WPSEO_Options' ) ) { // still checking since might be site-level autoload R.
add_action( 'admin_init', 'yoast_wpseo_missing_autoload', 1 );
return;
}
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();
add_action( 'shutdown', 'flush_rewrite_rules' );
wpseo_add_capabilities();
// Clear cache so the changes are obvious.
WPSEO_Utils::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' );
add_action( 'shutdown', 'flush_rewrite_rules' );
wpseo_remove_capabilities();
// Clear cache so the changes are obvious.
WPSEO_Utils::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
*
* @param int $blog_id
*/
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() {
$wpseo_path = str_replace( '\\', '/', WPSEO_PATH );
$mu_path = str_replace( '\\', '/', WPMU_PLUGIN_DIR );
if ( false !== stripos( $wpseo_path, $mu_path ) ) {
load_muplugin_textdomain( 'wordpress-seo', dirname( WPSEO_BASENAME ) . '/languages/' );
}
else {
load_plugin_textdomain( 'wordpress-seo', false, dirname( WPSEO_BASENAME ) . '/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();
$options = WPSEO_Options::get_all();
if ( version_compare( $options['version'], WPSEO_VERSION, '<' ) ) {
new WPSEO_Upgrade();
// get a cleaned up version of the $options
$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 ) {
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() {
new WPSEO_Admin_Init();
}
/* ***************************** BOOTSTRAP / HOOK INTO WP *************************** */
$spl_autoload_exists = function_exists( 'spl_autoload_register' );
$filter_exists = function_exists( 'filter_input' );
if ( ! $spl_autoload_exists ) {
add_action( 'admin_init', 'yoast_wpseo_missing_spl', 1 );
}
if ( ! $filter_exists ) {
add_action( 'admin_init', 'yoast_wpseo_missing_filter', 1 );
}
if ( ( ! defined( 'WP_INSTALLING' ) || WP_INSTALLING === false ) && ( $spl_autoload_exists && $filter_exists ) ) {
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_activation_hook( WPSEO_FILE, array( 'WPSEO_Plugin_Conflict', 'hook_check_for_plugin_conflicts' ) );
register_deactivation_hook( WPSEO_FILE, 'wpseo_deactivate' );
add_action( 'wpmu_new_blog', 'wpseo_on_activate_blog' );
add_action( 'activate_blog', 'wpseo_on_activate_blog' );
/**
* Wraps for notifications center class.
*/
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
*
* @return void
*/
function yoast_wpseo_missing_spl() {
if ( is_admin() ) {
add_action( 'admin_notices', 'yoast_wpseo_missing_spl_notice' );
yoast_wpseo_self_deactivate();
}
}
/**
* Returns the notice in case of missing spl extension
*/
function yoast_wpseo_missing_spl_notice() {
$message = esc_html__( 'The Standard PHP Library (SPL) extension seem to be unavailable. Please ask your web host to enable it.', 'wordpress-seo' );
yoast_wpseo_activation_failed_notice( $message );
}
/**
* Throw an error if the Composer autoload is missing and self-deactivate plugin
*
* @return void
*/
function yoast_wpseo_missing_autoload() {
if ( is_admin() ) {
add_action( 'admin_notices', 'yoast_wpseo_missing_autoload_notice' );
yoast_wpseo_self_deactivate();
}
}
/**
* Returns the notice in case of missing Composer autoload
*/
function yoast_wpseo_missing_autoload_notice() {
/* translators: %1$s / %2$s: links to the installation manual in the Readme for the WordPress SEO by Yoast code repository on GitHub */
$message = esc_html__( 'The WordPress SEO plugin installation is incomplete. Please refer to %1$sinstallation instructions%2$s.', 'wordpress-seo' );
$message = sprintf( $message, '<a href="https://github.com/Yoast/wordpress-seo#installation">', '</a>' );
yoast_wpseo_activation_failed_notice( $message );
}
/**
* Throw an error if the filter extension is disabled (prevent white screens) and self-deactivate plugin
*
* @since 2.0
*
* @return void
*/
function yoast_wpseo_missing_filter() {
if ( is_admin() ) {
add_action( 'admin_notices', 'yoast_wpseo_missing_filter_notice' );
yoast_wpseo_self_deactivate();
}
}
/**
* Returns the notice in case of missing filter extension
*/
function yoast_wpseo_missing_filter_notice() {
$message = esc_html__( 'The filter extension seem to be unavailable. Please ask your web host to enable it.', 'wordpress-seo' );
yoast_wpseo_activation_failed_notice( $message );
}
/**
* Echo's the Activation failed notice with any given message.
*
* @param string $message
*/
function yoast_wpseo_activation_failed_notice( $message ) {
echo '<div class="error"><p>' . __( 'Activation failed:', 'wordpress-seo' ) . ' ' . $message . '</p></div>';
}
/**
* The method will deactivate the plugin, but only once, done by the static $is_deactivated
*/
function yoast_wpseo_self_deactivate() {
static $is_deactivated;
if ( $is_deactivated === null ) {
$is_deactivated = true;
deactivate_plugins( plugin_basename( WPSEO_FILE ) );
if ( isset( $_GET['activate'] ) ) {
unset( $_GET['activate'] );
}
}
}
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