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<?php |
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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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|
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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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|
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// Includes local config file if exists |
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if ( file_exists( 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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/** |
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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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class Polylang { |
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|
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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 PLL_INC . '/functions.php'; // VIP functions |
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spl_autoload_register( array( $this, 'autoload' ) ); // Autoload classes |
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|
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// register an action when plugin is activating. |
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register_activation_hook( POLYLANG_BASENAME, array( 'PLL_Wizard', 'start_wizard' ) ); |
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|
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$install = new PLL_Install( POLYLANG_BASENAME ); |
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|
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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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|
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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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|
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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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// Extra code for compatibility with some plugins |
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// Loaded as soon as possible as we may need to act before other plugins are loaded |
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if ( ! defined( 'PLL_PLUGINS_COMPAT' ) || PLL_PLUGINS_COMPAT ) { |
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PLL_Plugins_Compat::instance(); |
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} |
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} |
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|
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/** |
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* Autoload classes |
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* |
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* @since 1.2 |
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* |
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* @param string $class |
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*/ |
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public function autoload( $class ) { |
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// Not a Polylang class |
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if ( 0 !== strncmp( 'PLL_', $class, 4 ) ) { |
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return; |
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} |
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|
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$class = str_replace( '_', '-', strtolower( substr( $class, 4 ) ) ); |
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$dirs = array(); |
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$parts = explode( '-', $class ); |
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$parts = array_values( array_diff( $parts, array( 'frontend', 'admin', 'settings', 'advanced' ) ) ); |
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if ( isset( $parts[0] ) ) { |
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$dirs[] = PLL_MODULES_INC . "/{$parts[0]}"; |
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if ( isset( $parts[1] ) ) { |
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$dirs[] = PLL_MODULES_INC . "/{$parts[0]}-{$parts[1]}"; |
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if ( isset( $parts[2] ) && in_array( $parts[1], array( 'post', 'term' ) ) ) { |
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$dirs[] = PLL_MODULES_INC . "/{$parts[0]}-{$parts[2]}"; |
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} |
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} |
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} |
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|
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$dirs = array_merge( |
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array( |
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PLL_FRONT_INC, |
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PLL_MODULES_INC, |
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), |
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$dirs, |
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array( |
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PLL_MODULES_INC . '/plugins', |
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PLL_INSTALL_INC, |
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PLL_ADMIN_INC, |
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PLL_SETTINGS_INC, |
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PLL_INC, |
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) |
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); |
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|
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foreach ( $dirs as $dir ) { |
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if ( file_exists( $file = "$dir/$class.php" ) ) { |
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require_once $file; // phpcs:ignore WordPressVIPMinimum.Files.IncludingFile.UsingVariable |
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return; |
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} |
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} |
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} |
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|
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/** |
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* Tells whether the current request is an ajax request on frontend or not |
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* |
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* @since 2.2 |
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* |
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* @return bool |
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*/ |
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public static function is_ajax_on_front() { |
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// Special test for plupload which does not use jquery ajax and thus does not pass our ajax prefilter |
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// Special test for customize_save done in frontend but for which we want to load the admin |
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$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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/** |
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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', $is_ajax_on_front ); |
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} |
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|
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/** |
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* Is the current request a REST API request? |
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* Inspired by WP::parse_request() |
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* Needed because at this point, the constant REST_REQUEST is not defined yet |
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* |
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* @since 2.4.1 |
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* |
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* @return bool |
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*/ |
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public static function is_rest_request() { |
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// Handle pretty permalinks. |
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$home_path = trim( wp_parse_url( home_url(), PHP_URL_PATH ), '/' ); |
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$home_path_regex = sprintf( '|^%s|i', preg_quote( $home_path, '|' ) ); |
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|
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$req_uri = trim( wp_parse_url( pll_get_requested_url(), PHP_URL_PATH ), '/' ); |
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$req_uri = 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( $req_uri, '/' ); |
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|
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// And also test rest_route query string parameter is not empty for plain permalinks. |
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$query_string = array(); |
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wp_parse_str( 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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|
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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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/** |
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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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/** |
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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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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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|
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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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|
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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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|
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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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/** |
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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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public function init() { |
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global $polylang; |
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|
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self::define_constants(); |
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$options = get_option( 'polylang' ); |
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|
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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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|
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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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// Make sure that this filter is *always* added before PLL_Model::get_languages_list() is called for the first time |
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add_filter( 'pll_languages_list', array( 'PLL_Static_Pages', 'pll_languages_list' ), 2, 2 ); // Before PLL_Links_Model |
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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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$model = new $class( $options ); |
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$links_model = $model->get_links_model(); |
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|
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if ( ! $model->get_languages_list() ) { |
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/** |
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* Fires when no language has been defined yet |
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* Used to load overridden textdomains |
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* |
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* @since 1.2 |
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*/ |
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do_action( 'pll_no_language_defined' ); |
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} |
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|
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$class = ''; |
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|
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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->get_languages_list() && empty( $_GET['deactivate-polylang'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification |
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$class = 'PLL_Frontend'; |
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} |
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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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|
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if ( ! empty( $class ) ) { |
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$polylang = new $class( $links_model ); |
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|
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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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|
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require_once PLL_INC . '/api.php'; // Loads the API |
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|
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if ( ! defined( 'PLL_WPML_COMPAT' ) || PLL_WPML_COMPAT ) { |
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PLL_WPML_Compat::instance(); // WPML API |
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PLL_WPML_Config::instance(); // wpml-config.xml |
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} |
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|
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$polylang->init(); |
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|
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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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} |
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} |
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} |
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|
