<?php

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class WPML_Global_AJAX extends WPML_SP_User {

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/**

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* WPML_Global_AJAX constructor.

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*

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* @param SitePress $sitepress

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*/

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public function __construct( &$sitepress ) {

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parent::__construct( $sitepress );

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add_action( 'wp_ajax_save_language_negotiation_type', array( $this, 'save_language_negotiation_type_action' ) );

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}

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public function save_language_negotiation_type_action() {

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$errors = array();

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$response = false;

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$nonce = filter_input( INPUT_POST, 'nonce' );

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$action = filter_input( INPUT_POST, 'action' );

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$is_valid_nonce = wp_verify_nonce( $nonce, $action );

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if ( $is_valid_nonce ) {

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$icl_language_negotiation_type = filter_input( INPUT_POST, 'icl_language_negotiation_type', FILTER_SANITIZE_NUMBER_INT, FILTER_NULL_ON_FAILURE );

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$language_domains = filter_input( INPUT_POST, 'language_domains', FILTER_SANITIZE_FULL_SPECIAL_CHARS, FILTER_REQUIRE_ARRAY | FILTER_NULL_ON_FAILURE );

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$use_directory = filter_input( INPUT_POST, 'use_directory', FILTER_SANITIZE_NUMBER_INT, FILTER_NULL_ON_FAILURE );

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$show_on_root = filter_input( INPUT_POST, 'show_on_root', FILTER_SANITIZE_FULL_SPECIAL_CHARS, FILTER_NULL_ON_FAILURE );

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$root_html_file_path = filter_input( INPUT_POST, 'root_html_file_path', FILTER_SANITIZE_FULL_SPECIAL_CHARS, FILTER_NULL_ON_FAILURE );

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$hide_language_switchers = filter_input( INPUT_POST, 'hide_language_switchers', FILTER_SANITIZE_NUMBER_INT, FILTER_NULL_ON_FAILURE );

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$icl_xdomain_data = filter_input( INPUT_POST, 'xdomain', FILTER_SANITIZE_NUMBER_INT, FILTER_NULL_ON_FAILURE );

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$sso_enabled = filter_input( INPUT_POST, 'sso_enabled', FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE );

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if ( $icl_language_negotiation_type ) {

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$this->sitepress->set_setting( 'language_negotiation_type', $icl_language_negotiation_type );

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$response = true;

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if ( ! empty( $language_domains ) ) {

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$this->sitepress->set_setting( 'language_domains', $language_domains );

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}

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if ( 1 === (int) $icl_language_negotiation_type ) {

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$urls = $this->sitepress->get_setting( 'urls' );

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$urls['directory_for_default_language'] = $use_directory ? true : 0;

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if ( $use_directory ) {

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$urls['show_on_root'] = $use_directory ? $show_on_root : '';

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if ( 'html_file' === $show_on_root ) {

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$root_page_url = $root_html_file_path ? $root_html_file_path : '';

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$response = $this->validateRootPageUrl( $root_page_url, $errors );

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if ( $response ) {

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$urls['root_html_file_path'] = $root_page_url;

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}

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} else {

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$urls['hide_language_switchers'] = $hide_language_switchers ? $hide_language_switchers : 0;

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}

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}

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$this->sitepress->set_setting( 'urls', $urls );

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}

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$this->sitepress->set_setting( 'xdomain_data', $icl_xdomain_data );

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$this->sitepress->set_setting( 'language_per_domain_sso_enabled', $sso_enabled );

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$this->sitepress->save_settings();

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}

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if ( $response ) {

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$permalinks_settings_url = get_admin_url( null, 'options-permalink.php' );

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$save_permalinks_link = '<a href="' . $permalinks_settings_url . '">' . _x( 're-save the site permalinks', 'You may need to {re-save the site permalinks} - 2/2', 'sitepress' ) . '</a>';

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$save_permalinks_message = sprintf( _x( 'You may need to %s.', 'You may need to {re-save the site permalinks} - 1/2', 'sitepress' ), $save_permalinks_link );

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wp_send_json_success( $save_permalinks_message );

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} else {

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if ( ! $errors ) {

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$errors[] = __( 'Error', 'sitepress' );

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}

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wp_send_json_error( $errors );

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}

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}

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}

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/**

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* @param string $url

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* @param array $errors

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*

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* @return bool

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*/

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private function validateRootPageUrl( $url, array &$errors ) {

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$wp_http = new WP_HTTP();

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if ( '' === trim( $url ) ) {

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$errors[] = __( 'The URL of the HTML file is required', 'sitepress' );

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return false;

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}

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if ( 0 !== strpos( $url, 'http' ) ) {

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$url = get_site_url( null, $url );

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}

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if ( $this->is_external( $url ) ) {

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$errors[] = __( 'You are trying to use an external URL: this is not allowed.', 'sitepress' );

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return false;

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}

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try {

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$response = $wp_http->get( $url );

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if ( is_wp_error( $response ) ) {

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$errors[] = $response->get_error_code() . ' - ' . $response->get_error_message( $response->get_error_code() );

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return false;

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}

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if ( 200 !== (int) $response['response']['code'] ) {

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$errors[] = __( 'An attempt to open the URL specified as a root page failed with the following error:', 'sitepress' );

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$errors[] = $response['response']['code'] . ': ' . $response['response']['message'];

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return false;

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}

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} catch ( Exception $ex ) {

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$errors[] = $ex->getMessage();

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return false;

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}

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return true;

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}

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function is_external( $url ) {

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$site_url = get_site_url();

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$site_components = wp_parse_url( $site_url );

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$site_host = strtolower( $site_components['host'] );

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$url_components = wp_parse_url( $url );

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$url_host = strtolower( $url_components['host'] );

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if ( empty( $url_host ) || 0 === strcasecmp( $url_host, $site_host ) ) {

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return false;

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}

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$site_host = $this->remove_www_prefix( $site_host );

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$subdomain_position = strrpos( $url_host, '.' . $site_host );

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$subdomain_length = strlen( $url_host ) - strlen( '.' . $site_host );

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return $subdomain_position !== $subdomain_length; // check if the url host is a subdomain

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}

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/**

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* @param $site_host

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*

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* @return string

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*/

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function remove_www_prefix( $site_host ) {

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$site_host_levels = explode( '.', $site_host );

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if ( 2 > count( $site_host_levels ) && 'www' === $site_host_levels[0] ) {

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$site_host_levels = array_slice( $site_host_levels, - ( count( $site_host_levels ) - 1 ) );

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$site_host = implode( '.', $site_host_levels );

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}

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return $site_host;

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}

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}

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