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<?php
/**
* WPSEO plugin file.
*
* @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', '16.1.1' );
if ( ! defined( 'WPSEO_PATH' ) ) {
define( 'WPSEO_PATH', plugin_dir_path( WPSEO_FILE ) );
}
if ( ! defined( 'WPSEO_BASENAME' ) ) {
define( 'WPSEO_BASENAME', plugin_basename( WPSEO_FILE ) );
}
/*
* {@internal The prefix constants are used to build prefixed versions of dependencies.
* These should not be changed on run-time, thus missing the ! defined() check.}}
*/
define( 'YOAST_VENDOR_NS_PREFIX', 'YoastSEO_Vendor' );
define( 'YOAST_VENDOR_DEFINE_PREFIX', 'YOASTSEO_VENDOR__' );
define( 'YOAST_VENDOR_PREFIX_DIRECTORY', 'vendor_prefixed' );
define( 'YOAST_SEO_PHP_REQUIRED', '5.6' );
define( 'YOAST_SEO_WP_TESTED', '5.7' );
define( 'YOAST_SEO_WP_REQUIRED', '5.6' );
if ( ! defined( 'WPSEO_NAMESPACES' ) ) {
define( 'WPSEO_NAMESPACES', true );
}
/* ***************************** CLASS AUTOLOADING *************************** */
/**
* Autoload our class files.
*
* @param string $class Class name.
*
* @return void
*/
function wpseo_auto_load( $class ) {
static $classes = null;
if ( $classes === null ) {
$classes = [
'wp_list_table' => ABSPATH . 'wp-admin/includes/class-wp-list-table.php',
'walker_category' => ABSPATH . 'wp-includes/category-template.php',
];
}
$cn = strtolower( $class );
if ( ! class_exists( $class ) && isset( $classes[ $cn ] ) ) {
require_once $classes[ $cn ];
}
}
$yoast_autoload_file = WPSEO_PATH . 'vendor/autoload.php';
if ( is_readable( $yoast_autoload_file ) ) {
require $yoast_autoload_file;
}
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' );
}
require_once WPSEO_PATH . 'src/functions.php';
/* ********************* DEFINES DEPENDING ON AUTOLOADED CODE ********************* */
/**
* Defaults to production, for safety.
*/
if ( ! defined( 'YOAST_ENVIRONMENT' ) ) {
define( 'YOAST_ENVIRONMENT', 'production' );
}
/**
* Only use minified assets when we are in a production environment.
*/
if ( ! defined( 'WPSEO_CSSJS_SUFFIX' ) ) {
define( 'WPSEO_CSSJS_SUFFIX', ( YOAST_ENVIRONMENT !== 'development' ) ? '.min' : '' );
}
/* ***************************** 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;
$network_blogs = $wpdb->get_col( $wpdb->prepare( "SELECT blog_id FROM $wpdb->blogs WHERE site_id = %d", $wpdb->siteid ) );
if ( is_array( $network_blogs ) && $network_blogs !== [] ) {
foreach ( $network_blogs as $blog_id ) {
switch_to_blog( $blog_id );
if ( $activate === true ) {
_wpseo_activate();
}
else {
_wpseo_deactivate();
}
restore_current_blog();
}
}
}
/**
* Runs on activation of the plugin.
*/
function _wpseo_activate() {
require_once WPSEO_PATH . 'inc/wpseo-functions.php';
require_once WPSEO_PATH . 'inc/class-wpseo-installation.php';
wpseo_load_textdomain(); // Make sure we have our translations available for the defaults.
new WPSEO_Installation();
WPSEO_Options::get_instance();
if ( ! is_multisite() ) {
WPSEO_Options::initialize();
}
else {
WPSEO_Options::maybe_set_multisite_defaults( true );
}
WPSEO_Options::ensure_options_exist();
if ( is_multisite() && ms_is_switched() ) {
delete_option( 'rewrite_rules' );
}
else {
if ( WPSEO_Options::get( 'stripcategorybase' ) === true ) {
// Constructor has side effects so this registers all hooks.
$GLOBALS['wpseo_rewrite'] = new WPSEO_Rewrite();
}
add_action( 'shutdown', 'flush_rewrite_rules' );
}
// Reset tracking to be disabled by default.
if ( ! YoastSEO()->helpers->product->is_premium() ) {
WPSEO_Options::set( 'tracking', false );
}
WPSEO_Options::set( 'indexing_reason', 'first_install' );
do_action( 'wpseo_register_roles' );
WPSEO_Role_Manager_Factory::get()->add();
do_action( 'wpseo_register_capabilities' );
WPSEO_Capability_Manager_Factory::get()->add();
// Clear cache so the changes are obvious.
WPSEO_Utils::clear_cache();
// Schedule cronjob when it doesn't exists on activation.
$wpseo_ryte = new WPSEO_Ryte();
$wpseo_ryte->activate_hooks();
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';
if ( is_multisite() && ms_is_switched() ) {
delete_option( 'rewrite_rules' );
}
else {
add_action( 'shutdown', 'flush_rewrite_rules' );
}
// Register capabilities, to make sure they are cleaned up.
do_action( 'wpseo_register_roles' );
do_action( 'wpseo_register_capabilities' );
// Clean up capabilities.
WPSEO_Role_Manager_Factory::get()->remove();
WPSEO_Capability_Manager_Factory::get()->remove();
// 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.
* {@link https://core.trac.wordpress.org/ticket/24205} }}
*
* @param int|WP_Site $blog_id 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 ( $blog_id instanceof WP_Site ) {
$blog_id = (int) $blog_id->blog_id;
}
if ( is_plugin_active_for_network( WPSEO_BASENAME ) ) {
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 ( stripos( $wpseo_path, $mu_path ) !== false ) {
load_muplugin_textdomain( 'wordpress-seo', dirname( WPSEO_BASENAME ) . '/languages/' );
}
else {
load_plugin_textdomain( 'wordpress-seo', false, dirname( WPSEO_BASENAME ) . '/languages/' );
}
}
add_action( 'plugins_loaded', 'wpseo_load_textdomain' );
/**
* On plugins_loaded: load the minimum amount of essential files for this plugin.
*/
function wpseo_init() {
require_once WPSEO_PATH . 'inc/wpseo-functions.php';
require_once WPSEO_PATH . 'inc/wpseo-functions-deprecated.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();
if ( version_compare( WPSEO_Options::get( 'version', 1 ), WPSEO_VERSION, '<' ) ) {
if ( function_exists( 'opcache_reset' ) ) {
// phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged -- Prevent notices when opcache.restrict_api is set.
@opcache_reset();
}
new WPSEO_Upgrade();
// Get a cleaned up version of the $options.
}
if ( WPSEO_Options::get( 'stripcategorybase' ) === true ) {
$GLOBALS['wpseo_rewrite'] = new WPSEO_Rewrite();
}
if ( WPSEO_Options::get( 'enable_xml_sitemap' ) === true ) {
$GLOBALS['wpseo_sitemaps'] = new WPSEO_Sitemaps();
}
if ( ! wp_doing_ajax() ) {
require_once WPSEO_PATH . 'inc/wpseo-non-ajax-functions.php';
}
// Init it here because the filter must be present on the frontend as well or it won't work in the customizer.
new WPSEO_Customizer();
$integrations = [];
$integrations[] = new WPSEO_Slug_Change_Watcher();
foreach ( $integrations as $integration ) {
$integration->register_hooks();
}
// Loading Ryte integration.
$wpseo_ryte = new WPSEO_Ryte();
$wpseo_ryte->register_hooks();
}
/**
* Loads the rest api endpoints.
*/
function wpseo_init_rest_api() {
// We can't do anything when requirements are not met.
if ( ! WPSEO_Utils::is_api_available() ) {
return;
}
// Boot up REST API.
$configuration_service = new WPSEO_Configuration_Service();
$configuration_service->initialize();
$statistics_service = new WPSEO_Statistics_Service( new WPSEO_Statistics() );
$endpoints = [];
$endpoints[] = new WPSEO_Endpoint_File_Size( new WPSEO_File_Size_Service() );
$endpoints[] = new WPSEO_Endpoint_Statistics( $statistics_service );
foreach ( $endpoints as $endpoint ) {
$endpoint->register();
}
}
/**
* Used to load the required files on the plugins_loaded hook, instead of immediately.
*/
function wpseo_admin_init() {
new WPSEO_Admin_Init();
}
/**
* Initialize the WP-CLI integration.
*
* The WP-CLI integration needs PHP 5.3 support, which should be automatically
* enforced by the check for the WP_CLI constant. As WP-CLI itself only runs
* on PHP 5.3+, the constant should only be set when requirements are met.
*/
function wpseo_cli_init() {
if ( YoastSEO()->helpers->product->is_premium() ) {
WP_CLI::add_command(
'yoast redirect list',
'WPSEO_CLI_Redirect_List_Command',
[ 'before_invoke' => 'WPSEO_CLI_Premium_Requirement::enforce' ]
);
WP_CLI::add_command(
'yoast redirect create',
'WPSEO_CLI_Redirect_Create_Command',
[ 'before_invoke' => 'WPSEO_CLI_Premium_Requirement::enforce' ]
);
WP_CLI::add_command(
'yoast redirect update',
'WPSEO_CLI_Redirect_Update_Command',
[ 'before_invoke' => 'WPSEO_CLI_Premium_Requirement::enforce' ]
);
WP_CLI::add_command(
'yoast redirect delete',
'WPSEO_CLI_Redirect_Delete_Command',
[ 'before_invoke' => 'WPSEO_CLI_Premium_Requirement::enforce' ]
);
WP_CLI::add_command(
'yoast redirect has',
'WPSEO_CLI_Redirect_Has_Command',
[ 'before_invoke' => 'WPSEO_CLI_Premium_Requirement::enforce' ]
);
WP_CLI::add_command(
'yoast redirect follow',
'WPSEO_CLI_Redirect_Follow_Command',
[ 'before_invoke' => 'WPSEO_CLI_Premium_Requirement::enforce' ]
);
}
}
/* ***************************** 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 ( ! wp_installing() && ( $spl_autoload_exists && $filter_exists ) ) {
add_action( 'plugins_loaded', 'wpseo_init', 14 );
add_action( 'rest_api_init', 'wpseo_init_rest_api' );
if ( is_admin() ) {
new Yoast_Notifications();
$yoast_addon_manager = new WPSEO_Addon_Manager();
$yoast_addon_manager->register_hooks();
if ( wp_doing_ajax() ) {
require_once WPSEO_PATH . 'admin/ajax.php';
// Plugin conflict ajax hooks.
new Yoast_Plugin_Conflict_Ajax();
if ( filter_input( INPUT_POST, 'action' ) === 'inline-save' ) {
add_action( 'plugins_loaded', 'wpseo_admin_init', 15 );
}
}
else {
add_action( 'plugins_loaded', 'wpseo_admin_init', 15 );
}
}
add_action( 'plugins_loaded', 'load_yoast_notifications' );
if ( defined( 'WP_CLI' ) && WP_CLI ) {
add_action( 'plugins_loaded', 'wpseo_cli_init', 20 );
}
add_action( 'init', [ 'WPSEO_Replace_Vars', 'setup_statics_once' ] );
// Initializes the Yoast indexables for the first time.
YoastSEO();
/**
* Action called when the Yoast SEO plugin file has loaded.
*/
do_action( 'wpseo_loaded' );
}
// Activation and deactivation hook.
register_activation_hook( WPSEO_FILE, 'wpseo_activate' );
register_deactivation_hook( WPSEO_FILE, 'wpseo_deactivate' );
// Wpmu_new_blog has been deprecated in 5.1 and replaced by wp_insert_site.
global $wp_version;
if ( version_compare( $wp_version, '5.1', '<' ) ) {
add_action( 'wpmu_new_blog', 'wpseo_on_activate_blog' );
}
else {
add_action( 'wp_initialize_site', 'wpseo_on_activate_blog', 99 );
}
add_action( 'activate_blog', 'wpseo_on_activate_blog' );
// Registers SEO capabilities.
$wpseo_register_capabilities = new WPSEO_Register_Capabilities();
$wpseo_register_capabilities->register_hooks();
// Registers SEO roles.
$wpseo_register_capabilities = new WPSEO_Register_Roles();
$wpseo_register_capabilities->register_hooks();
/**
* 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 expands to Yoast SEO, %2$s / %3$s: links to the installation manual in the Readme for the Yoast SEO code repository on GitHub */
$message = esc_html__( 'The %1$s plugin installation is incomplete. Please refer to %2$sinstallation instructions%3$s.', 'wordpress-seo' );
$message = sprintf( $message, 'Yoast SEO', '<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 Message string.
*/
function yoast_wpseo_activation_failed_notice( $message ) {
// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- This function is only called in 3 places that are safe.
echo '<div class="error"><p>' . esc_html__( 'Activation failed:', 'wordpress-seo' ) . ' ' . strip_tags( $message, '<a>' ) . '</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( WPSEO_BASENAME );
if ( isset( $_GET['activate'] ) ) {
unset( $_GET['activate'] );
}
}
}
/* ********************* DEPRECATED METHODS ********************* */
/**
* Instantiate the different social classes on the frontend.
*
* @deprecated 14.0
* @codeCoverageIgnore
*/
function wpseo_frontend_head_init() {
_deprecated_function( __METHOD__, 'WPSEO 14.0' );
}
/**
* Used to load the required files on the plugins_loaded hook, instead of immediately.
*
* @deprecated 14.0
* @codeCoverageIgnore
*/
function wpseo_frontend_init() {
_deprecated_function( __METHOD__, 'WPSEO 14.0' );
}
/**
* Aliasses added in order to keep compatibility with Yoast SEO: Local.
*/
class_alias( '\Yoast\WP\SEO\Initializers\Initializer_Interface', '\Yoast\WP\SEO\WordPress\Initializer' );
class_alias( '\Yoast\WP\SEO\Loadable_Interface', '\Yoast\WP\SEO\WordPress\Loadable' );
class_alias( '\Yoast\WP\SEO\Integrations\Integration_Interface', '\Yoast\WP\SEO\WordPress\Integration' );