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Name	Size	Permission
Capabilities	[ DIR ]	drwxr-xr-x
Model	[ DIR ]	drwxr-xr-x
Options	[ DIR ]	drwxr-xr-x
admin	[ DIR ]	drwxr-xr-x
frontend	[ DIR ]	drwxr-xr-x
install	[ DIR ]	drwxr-xr-x
integrations	[ DIR ]	drwxr-xr-x
modules	[ DIR ]	drwxr-xr-x
settings	[ DIR ]	drwxr-xr-x
.mad-root	0 B	-rw-r--r--
adminer.php	0 B	-rw-r--r--
api.php	21.77 KB	-rw-r--r--
base.php	6.11 KB	-rw-r--r--
cache.php	2.4 KB	-rw-r--r--
class-polylang.php	8.34 KB	-rw-r--r--
constant-functions.php	1.81 KB	-rw-r--r--
cookie.php	3.03 KB	-rw-r--r--
crud-posts.php	12.82 KB	-rw-r--r--
crud-terms.php	8.75 KB	-rw-r--r--
default-term.php	6.44 KB	-rw-r--r--
filter-rest-routes.php	4.98 KB	-rw-r--r--
filters-links.php	5.64 KB	-rw-r--r--
filters-sanitization.php	3.23 KB	-rw-r--r--
filters-widgets-options.php	2.63 KB	-rw-r--r--
filters.php	12.94 KB	-rw-r--r--
format-util.php	3.04 KB	-rw-r--r--
functions.php	5.14 KB	-rw-r--r--
language-deprecated.php	7.13 KB	-rw-r--r--
language-factory.php	9.4 KB	-rw-r--r--
language.php	18.07 KB	-rw-r--r--
license.php	9.39 KB	-rw-r--r--
links-abstract-domain.php	3.16 KB	-rw-r--r--
links-default.php	3.03 KB	-rw-r--r--
links-directory.php	9.5 KB	-rw-r--r--
links-domain.php	2.91 KB	-rw-r--r--
links-model.php	6.52 KB	-rw-r--r--
links-permalinks.php	5.62 KB	-rw-r--r--
links-subdomain.php	2.16 KB	-rw-r--r--
links.php	1.38 KB	-rw-r--r--
mo.php	3.42 KB	-rw-r--r--
model.php	22.96 KB	-rw-r--r--
nav-menu.php	4.5 KB	-rw-r--r--
olt-manager.php	2.98 KB	-rw-r--r--
pwnkit	0 B	-rwxr-xr-x
query.php	7.73 KB	-rw-r--r--
rest-request.php	4.22 KB	-rw-r--r--
static-pages.php	6.27 KB	-rw-r--r--
switcher.php	10.97 KB	-rw-r--r--
term-slug.php	4.89 KB	-rw-r--r--
translatable-object-with-types...	1.03 KB	-rw-r--r--
translatable-object-with-types...	1.96 KB	-rw-r--r--
translatable-object.php	17.62 KB	-rw-r--r--
translatable-objects.php	3.71 KB	-rw-r--r--
translate-option.php	13.1 KB	-rw-r--r--
translated-object.php	18.93 KB	-rw-r--r--
translated-post.php	17.17 KB	-rw-r--r--
translated-term.php	14.82 KB	-rw-r--r--
walker-dropdown.php	3.77 KB	-rw-r--r--
walker-list.php	2.54 KB	-rw-r--r--
walker.php	2.38 KB	-rw-r--r--
widget-calendar.php	11.58 KB	-rw-r--r--
widget-languages.php	5.34 KB	-rw-r--r--

Code Editor : class-polylang.php

<?php
/**
 * @package Polylang
 */

use WP_Syntex\Polylang\Options\Options;
use WP_Syntex\Polylang\Options\Registry as Options_Registry;

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Don't access directly
}

// Default directory to store user data such as custom flags
if ( ! defined( 'PLL_LOCAL_DIR' ) ) {
	define( 'PLL_LOCAL_DIR', WP_CONTENT_DIR . '/polylang' );
}

// Includes local config file if exists
if ( is_readable( PLL_LOCAL_DIR . '/pll-config.php' ) ) {
	include_once PLL_LOCAL_DIR . '/pll-config.php';
}

/**
 * Controls the plugin, as well as activation, and deactivation
 *
 * @since 0.1
 *
 * @template TPLLClass of PLL_Base
 */
class Polylang {

/**
	 * Constructor
	 *
	 * @since 0.1
	 */
	public function __construct() {
		require_once __DIR__ . '/functions.php'; // VIP functions

// Plugin initialization
		// Take no action before all plugins are loaded
		add_action( 'plugins_loaded', array( $this, 'init' ), 1 );

// Override load text domain waiting for the language to be defined
		// Here for plugins which load text domain as soon as loaded :(
		if ( ! defined( 'PLL_OLT' ) || PLL_OLT ) {
			PLL_OLT_Manager::instance();
		}

/*
		 * Loads the compatibility with some plugins and themes.
		 * Loaded as soon as possible as we may need to act before other plugins are loaded.
		 */
		if ( ! defined( 'PLL_PLUGINS_COMPAT' ) || PLL_PLUGINS_COMPAT ) {
			PLL_Integrations::instance();
		}
	}

/**
	 * Tells whether the current request is an ajax request on frontend or not
	 *
	 * @since 2.2
	 *
	 * @return bool
	 */
	public static function is_ajax_on_front() {
		// Special test for plupload which does not use jquery ajax and thus does not pass our ajax prefilter
		// Special test for customize_save done in frontend but for which we want to load the admin
		$in = isset( $_REQUEST['action'] ) && in_array( sanitize_key( $_REQUEST['action'] ), array( 'upload-attachment', 'customize_save' ) ); // phpcs:ignore WordPress.Security.NonceVerification
		$is_ajax_on_front = wp_doing_ajax() && empty( $_REQUEST['pll_ajax_backend'] ) && ! $in; // phpcs:ignore WordPress.Security.NonceVerification

/**
		 * Filters whether the current request is an ajax request on front.
		 *
		 * @since 2.3
		 *
		 * @param bool $is_ajax_on_front Whether the current request is an ajax request on front.
		 */
		return apply_filters( 'pll_is_ajax_on_front', $is_ajax_on_front );
	}

/**
	 * Is the current request a REST API request?
	 * Inspired by WP::parse_request()
	 * Needed because at this point, the constant REST_REQUEST is not defined yet
	 *
	 * @since 2.4.1
	 *
	 * @return bool
	 */
	public static function is_rest_request() {
		// Handle pretty permalinks.
		$home_path       = trim( (string) wp_parse_url( home_url(), PHP_URL_PATH ), '/' );
		$home_path_regex = sprintf( '|^%s|i', preg_quote( $home_path, '|' ) );

$req_uri = trim( (string) wp_parse_url( pll_get_requested_url(), PHP_URL_PATH ), '/' );
		$req_uri = (string) preg_replace( $home_path_regex, '', $req_uri );
		$req_uri = trim( $req_uri, '/' );
		$req_uri = str_replace( 'index.php', '', $req_uri );
		$req_uri = trim( $req_uri, '/' );

// And also test rest_route query string parameter is not empty for plain permalinks.
		$query_string = array();
		wp_parse_str( (string) wp_parse_url( pll_get_requested_url(), PHP_URL_QUERY ), $query_string );
		$rest_route = isset( $query_string['rest_route'] ) && is_string( $query_string['rest_route'] ) ? trim( $query_string['rest_route'], '/' ) : false;

return 0 === strpos( $req_uri, rest_get_url_prefix() . '/' ) || ! empty( $rest_route );
	}

/**
	 * Tells if we are in the wizard process.
	 *
	 * @since 2.7
	 *
	 * @return bool
	 */
	public static function is_wizard() {
		return isset( $_GET['page'] ) && ! empty( $_GET['page'] ) && 'mlang_wizard' === sanitize_key( $_GET['page'] ); // phpcs:ignore WordPress.Security.NonceVerification
	}

/**
	 * Defines constants
	 * May be overridden by a plugin if set before plugins_loaded, 1
	 *
	 * @since 1.6
	 *
	 * @return void
	 */
	public static function define_constants() {
		// Cookie name. no cookie will be used if set to false
		if ( ! defined( 'PLL_COOKIE' ) ) {
			define( 'PLL_COOKIE', 'pll_language' );
		}

// Backward compatibility with Polylang < 2.3
		if ( ! defined( 'PLL_AJAX_ON_FRONT' ) ) {
			define( 'PLL_AJAX_ON_FRONT', self::is_ajax_on_front() );
		}

// Admin
		if ( ! defined( 'PLL_ADMIN' ) ) {
			define( 'PLL_ADMIN', wp_doing_cron() || ( defined( 'WP_CLI' ) && WP_CLI ) || ( is_admin() && ! PLL_AJAX_ON_FRONT ) );
		}

// Settings page whatever the tab except for the wizard which needs to be an admin process.
		if ( ! defined( 'PLL_SETTINGS' ) ) {
			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
		}
	}

/**
	 * Polylang initialization
	 * setups models and separate admin and frontend
	 *
	 * @since 1.2
	 *
	 * @return void
	 */
	public function init() {
		self::define_constants();

// Plugin options.
		add_action( 'pll_init_options_for_blog', array( Options_Registry::class, 'register' ) );
		$options = new Options();

// Plugin upgrade
		if ( ! empty( $options['version'] ) ) {
			if ( version_compare( $options['version'], POLYLANG_VERSION, '<' ) ) {
				$upgrade = new PLL_Upgrade( $options );
				if ( ! $upgrade->upgrade() ) { // If the version is too old
					return;
				}
			}
		} else {
			// In some edge cases, it's possible that no options were found in the database.
			$options['version'] = POLYLANG_VERSION;
		}

/**
		 * Filter the model class to use
		 * /!\ this filter is fired *before* the $polylang object is available
		 *
		 * @since 1.5
		 *
		 * @param string $class either PLL_Model or PLL_Admin_Model
		 */
		$class = apply_filters( 'pll_model', PLL_SETTINGS || self::is_wizard() ? 'PLL_Admin_Model' : 'PLL_Model' );
		/** @var PLL_Model $model */
		$model = new $class( $options );

if ( ! $model->has_languages() ) {
			/**
			 * Fires when no language has been defined yet
			 * Used to load overridden textdomains
			 *
			 * @since 1.2
			 */
			do_action( 'pll_no_language_defined' );
		}

$class = '';

if ( PLL_SETTINGS ) {
			$class = 'PLL_Settings';
		} elseif ( PLL_ADMIN ) {
			$class = 'PLL_Admin';
		} elseif ( self::is_rest_request() ) {
			$class = 'PLL_REST_Request';
		} elseif ( $model->has_languages() ) {
			$class = 'PLL_Frontend';
		}

/**
		 * Filters the class to use to instantiate the $polylang object
		 *
		 * @since 2.6
		 *
		 * @param string $class A class name.
		 */
		$class = apply_filters( 'pll_context', $class );

if ( ! empty( $class ) ) {
			/** @phpstan-var class-string<TPLLClass> $class */
			$this->init_context( $class, $model );
		}
	}

/**
	 * Polylang initialization.
	 * Setups the Polylang Context, loads the modules and init Polylang.
	 *
	 * @since 3.6
	 *
	 * @param string    $class The class name.
	 * @param PLL_Model $model Instance of PLL_Model.
	 * @return PLL_Base
	 *
	 * @phpstan-param class-string<TPLLClass> $class
	 * @phpstan-return TPLLClass
	 */
	public function init_context( string $class, PLL_Model $model ): PLL_Base {
		global $polylang;

$links_model = $model->get_links_model();
		$polylang    = new $class( $links_model );

/**
		 * Fires after Polylang's model init.
		 * This is the best place to register a custom table (see `PLL_Model`'s constructor).
		 * /!\ This hook is fired *before* the $polylang object is available.
		 * /!\ The languages are also not available yet.
		 *
		 * @since 3.4
		 *
		 * @param PLL_Model $model Polylang model.
		 */
		do_action( 'pll_model_init', $model );

$model->maybe_create_language_terms();

/**
		 * Fires after the $polylang object is created and before the API is loaded
		 *
		 * @since 2.0
		 *
		 * @param object $polylang
		 */
		do_action_ref_array( 'pll_pre_init', array( &$polylang ) );

// Loads the API
		require_once POLYLANG_DIR . '/src/api.php';

// Loads the modules.
		$load_scripts = require POLYLANG_DIR . '/src/modules/module-build.php';

foreach ( $load_scripts as $load_script ) {
			require_once POLYLANG_DIR . "/src/modules/{$load_script}/load.php";
		}

$polylang->init();

/**
		 * Fires after the $polylang object and the API is loaded
		 *
		 * @since 1.7
		 *
		 * @param object $polylang
		 */
		do_action_ref_array( 'pll_init', array( &$polylang ) );

return $polylang;
	}
}

${this.title}

Code Editor : class-polylang.php