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298 lines
8.6 KiB
298 lines
8.6 KiB
<?php
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/**
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* @package Polylang
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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exit; // Don't access directly
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}
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// Default directory to store user data such as custom flags
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if ( ! defined( 'PLL_LOCAL_DIR' ) ) {
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define( 'PLL_LOCAL_DIR', WP_CONTENT_DIR . '/polylang' );
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}
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// Includes local config file if exists
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if ( is_readable( PLL_LOCAL_DIR . '/pll-config.php' ) ) {
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include_once PLL_LOCAL_DIR . '/pll-config.php';
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}
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/**
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* Controls the plugin, as well as activation, and deactivation
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*
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* @since 0.1
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*
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* @template TPLLClass of PLL_Base
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*/
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class Polylang {
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/**
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* Constructor
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*
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* @since 0.1
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*/
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public function __construct() {
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require_once __DIR__ . '/functions.php'; // VIP functions
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// register an action when plugin is activating.
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register_activation_hook( POLYLANG_BASENAME, array( 'PLL_Wizard', 'start_wizard' ) );
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$install = new PLL_Install( POLYLANG_BASENAME );
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// Stopping here if we are going to deactivate the plugin ( avoids breaking rewrite rules )
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if ( $install->is_deactivation() || ! $install->can_activate() ) {
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return;
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}
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// Plugin initialization
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// Take no action before all plugins are loaded
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add_action( 'plugins_loaded', array( $this, 'init' ), 1 );
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// Override load text domain waiting for the language to be defined
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// Here for plugins which load text domain as soon as loaded :(
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if ( ! defined( 'PLL_OLT' ) || PLL_OLT ) {
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PLL_OLT_Manager::instance();
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}
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/*
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* Loads the compatibility with some plugins and themes.
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* Loaded as soon as possible as we may need to act before other plugins are loaded.
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*/
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if ( ! defined( 'PLL_PLUGINS_COMPAT' ) || PLL_PLUGINS_COMPAT ) {
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PLL_Integrations::instance();
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}
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}
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/**
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* Tells whether the current request is an ajax request on frontend or not
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*
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* @since 2.2
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*
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* @return bool
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*/
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public static function is_ajax_on_front() {
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// Special test for plupload which does not use jquery ajax and thus does not pass our ajax prefilter
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// Special test for customize_save done in frontend but for which we want to load the admin
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$in = isset( $_REQUEST['action'] ) && in_array( sanitize_key( $_REQUEST['action'] ), array( 'upload-attachment', 'customize_save' ) ); // phpcs:ignore WordPress.Security.NonceVerification
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$is_ajax_on_front = wp_doing_ajax() && empty( $_REQUEST['pll_ajax_backend'] ) && ! $in; // phpcs:ignore WordPress.Security.NonceVerification
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/**
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* Filters whether the current request is an ajax request on front.
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*
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* @since 2.3
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*
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* @param bool $is_ajax_on_front Whether the current request is an ajax request on front.
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*/
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return apply_filters( 'pll_is_ajax_on_front', $is_ajax_on_front );
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}
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/**
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* Is the current request a REST API request?
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* Inspired by WP::parse_request()
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* Needed because at this point, the constant REST_REQUEST is not defined yet
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*
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* @since 2.4.1
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*
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* @return bool
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*/
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public static function is_rest_request() {
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// Handle pretty permalinks.
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$home_path = trim( (string) wp_parse_url( home_url(), PHP_URL_PATH ), '/' );
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$home_path_regex = sprintf( '|^%s|i', preg_quote( $home_path, '|' ) );
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$req_uri = trim( (string) wp_parse_url( pll_get_requested_url(), PHP_URL_PATH ), '/' );
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$req_uri = (string) preg_replace( $home_path_regex, '', $req_uri );
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$req_uri = trim( $req_uri, '/' );
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$req_uri = str_replace( 'index.php', '', $req_uri );
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$req_uri = trim( $req_uri, '/' );
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// And also test rest_route query string parameter is not empty for plain permalinks.
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$query_string = array();
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wp_parse_str( (string) wp_parse_url( pll_get_requested_url(), PHP_URL_QUERY ), $query_string );
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$rest_route = isset( $query_string['rest_route'] ) ? trim( $query_string['rest_route'], '/' ) : false;
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return 0 === strpos( $req_uri, rest_get_url_prefix() . '/' ) || ! empty( $rest_route );
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}
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/**
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* Tells if we are in the wizard process.
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*
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* @since 2.7
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*
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* @return bool
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*/
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public static function is_wizard() {
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return isset( $_GET['page'] ) && ! empty( $_GET['page'] ) && 'mlang_wizard' === sanitize_key( $_GET['page'] ); // phpcs:ignore WordPress.Security.NonceVerification
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}
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/**
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* Defines constants
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* May be overridden by a plugin if set before plugins_loaded, 1
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*
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* @since 1.6
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*
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* @return void
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*/
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public static function define_constants() {
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// Cookie name. no cookie will be used if set to false
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if ( ! defined( 'PLL_COOKIE' ) ) {
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define( 'PLL_COOKIE', 'pll_language' );
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}
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// Backward compatibility with Polylang < 2.3
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if ( ! defined( 'PLL_AJAX_ON_FRONT' ) ) {
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define( 'PLL_AJAX_ON_FRONT', self::is_ajax_on_front() );
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}
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// Admin
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if ( ! defined( 'PLL_ADMIN' ) ) {
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define( 'PLL_ADMIN', wp_doing_cron() || ( defined( 'WP_CLI' ) && WP_CLI ) || ( is_admin() && ! PLL_AJAX_ON_FRONT ) );
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}
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// Settings page whatever the tab except for the wizard which needs to be an admin process.
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if ( ! defined( 'PLL_SETTINGS' ) ) {
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define( 'PLL_SETTINGS', is_admin() && ( ( isset( $_GET['page'] ) && 0 === strpos( sanitize_key( $_GET['page'] ), 'mlang' ) && ! self::is_wizard() ) || ! empty( $_REQUEST['pll_ajax_settings'] ) ) ); // phpcs:ignore WordPress.Security.NonceVerification
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}
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}
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/**
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* Polylang initialization
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* setups models and separate admin and frontend
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*
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* @since 1.2
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*
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* @return void
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*/
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public function init() {
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self::define_constants();
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$options = get_option( 'polylang' );
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// Plugin upgrade
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if ( $options && version_compare( $options['version'], POLYLANG_VERSION, '<' ) ) {
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$upgrade = new PLL_Upgrade( $options );
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if ( ! $upgrade->upgrade() ) { // If the version is too old
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return;
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}
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}
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// In some edge cases, it's possible that no options were found in the database. Load default options as we need some.
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if ( ! $options ) {
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$options = PLL_Install::get_default_options();
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}
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/**
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* Filter the model class to use
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* /!\ this filter is fired *before* the $polylang object is available
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*
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* @since 1.5
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*
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* @param string $class either PLL_Model or PLL_Admin_Model
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*/
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$class = apply_filters( 'pll_model', PLL_SETTINGS || self::is_wizard() ? 'PLL_Admin_Model' : 'PLL_Model' );
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/** @var PLL_Model $model */
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$model = new $class( $options );
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if ( ! $model->has_languages() ) {
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/**
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* Fires when no language has been defined yet
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* Used to load overridden textdomains
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*
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* @since 1.2
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*/
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do_action( 'pll_no_language_defined' );
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}
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$class = '';
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if ( PLL_SETTINGS ) {
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$class = 'PLL_Settings';
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} elseif ( PLL_ADMIN ) {
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$class = 'PLL_Admin';
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} elseif ( self::is_rest_request() ) {
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$class = 'PLL_REST_Request';
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} elseif ( $model->has_languages() ) {
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$class = 'PLL_Frontend';
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}
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/**
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* Filters the class to use to instantiate the $polylang object
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*
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* @since 2.6
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*
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* @param string $class A class name.
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*/
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$class = apply_filters( 'pll_context', $class );
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if ( ! empty( $class ) ) {
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/** @phpstan-var class-string<TPLLClass> $class */
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$this->init_context( $class, $model );
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}
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}
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/**
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* Polylang initialization.
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* Setups the Polylang Context, loads the modules and init Polylang.
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*
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* @since 3.6
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*
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* @param string $class The class name.
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* @param PLL_Model $model Instance of PLL_Model.
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* @return PLL_Base
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*
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* @phpstan-param class-string<TPLLClass> $class
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* @phpstan-return TPLLClass
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*/
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public function init_context( string $class, PLL_Model $model ): PLL_Base {
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global $polylang;
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$links_model = $model->get_links_model();
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$polylang = new $class( $links_model );
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/**
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* Fires after Polylang's model init.
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* This is the best place to register a custom table (see `PLL_Model`'s constructor).
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* /!\ This hook is fired *before* the $polylang object is available.
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* /!\ The languages are also not available yet.
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*
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* @since 3.4
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*
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* @param PLL_Model $model Polylang model.
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*/
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do_action( 'pll_model_init', $model );
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$model->maybe_create_language_terms();
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/**
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* Fires after the $polylang object is created and before the API is loaded
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*
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* @since 2.0
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*
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* @param object $polylang
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*/
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do_action_ref_array( 'pll_pre_init', array( &$polylang ) );
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// Loads the API
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require_once POLYLANG_DIR . '/include/api.php';
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// Loads the modules.
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$load_scripts = glob( POLYLANG_DIR . '/modules/*/load.php', GLOB_NOSORT );
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if ( is_array( $load_scripts ) ) {
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foreach ( $load_scripts as $load_script ) {
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require_once $load_script; // phpcs:ignore WordPressVIPMinimum.Files.IncludingFile.UsingVariable
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}
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}
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$polylang->init();
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/**
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* Fires after the $polylang object and the API is loaded
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*
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* @since 1.7
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*
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* @param object $polylang
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*/
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do_action_ref_array( 'pll_init', array( &$polylang ) );
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return $polylang;
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}
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}
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