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<?php

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use WPML\Collect\Support\Collection;

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class WPML_Locale {

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/**

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* @var wpdb

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private $wpdb;

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/**

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* @var SitePress

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private $sitepress;

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/**

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* @var string $locale

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private $locale;

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private $locale_cache;

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/** @var Collection $all_locales */

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private $all_locales;

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/**

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* WPML_Locale constructor.

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* @param wpdb $wpdb

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* @param SitePress $sitepress

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* @param string $locale

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public function __construct( wpdb &$wpdb, SitePress &$sitepress, &$locale ) {

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$this->wpdb =& $wpdb;

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$this->sitepress =& $sitepress;

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$this->locale =& $locale;

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$this->locale_cache = null;

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}

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public function init() {

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if ( $this->language_needs_title_sanitization() ) {

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add_filter( 'sanitize_title', array( $this, 'filter_sanitize_title' ), 10, 2 );

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}

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}

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/**

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* @see \Test_Admin_Settings::test_locale

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* @fixme

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* Due to the way these tests work (global state issues) I had to create this method

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* to ensure we have full coverage of the code.

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* This method shouldn't be used anywhere else and should be removed once tests are migrated

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* to the new tests framework.

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public function reset_cached_data() {

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$this->locale_cache = null;

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$this->all_locales = null;

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}

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/**

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* Hooked to 'sanitize_title' in case the user is using a language that has either German or Danish locale, to

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* ensure that WP Core sanitization functions handle special chars accordingly.

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* @param string $title

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* @param string $raw_title

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* @return string

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public function filter_sanitize_title( $title, $raw_title ) {

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if ( $title !== $raw_title ) {

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remove_filter( 'sanitize_title', array( $this, 'filter_sanitize_title' ), 10 );

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$chars = array();

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$chars[ chr( 195 ) . chr( 132 ) ] = 'Ae';

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$chars[ chr( 195 ) . chr( 133 ) ] = 'Aa';

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$chars[ chr( 195 ) . chr( 134 ) ] = 'Ae';

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$chars[ chr( 195 ) . chr( 150 ) ] = 'Oe';

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$chars[ chr( 195 ) . chr( 152 ) ] = 'Oe';

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$chars[ chr( 195 ) . chr( 156 ) ] = 'Ue';

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$chars[ chr( 195 ) . chr( 159 ) ] = 'ss';

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$chars[ chr( 195 ) . chr( 164 ) ] = 'ae';

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$chars[ chr( 195 ) . chr( 165 ) ] = 'aa';

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$chars[ chr( 195 ) . chr( 166 ) ] = 'ae';

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$chars[ chr( 195 ) . chr( 182 ) ] = 'oe';

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$chars[ chr( 195 ) . chr( 184 ) ] = 'oe';

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$chars[ chr( 195 ) . chr( 188 ) ] = 'ue';

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$title = sanitize_title( strtr( $raw_title, $chars ) );

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add_filter( 'sanitize_title', array( $this, 'filter_sanitize_title' ), 10, 2 );

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}

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return $title;

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}

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/**

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* @return bool|mixed

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public function locale() {

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if ( ! $this->locale_cache ) {

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add_filter( 'language_attributes', array( $this, '_language_attributes' ) );

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$wp_api = $this->sitepress->get_wp_api();

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$is_ajax = $wp_api->is_ajax();

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if ( $is_ajax && isset( $_REQUEST['action'], $_REQUEST['lang'] ) ) {

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$locale_lang_code = $_REQUEST['lang'];

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} elseif ( $wp_api->is_admin()

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&& ( ! $is_ajax

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|| $this->sitepress->check_if_admin_action_from_referer() )

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) {

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$locale_lang_code = $this->sitepress->user_lang_by_authcookie();

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} else {

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$locale_lang_code = $this->sitepress->get_current_language();

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}

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$locale = $this->get_locale( $locale_lang_code );

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if ( did_action( 'plugins_loaded' ) ) {

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$this->locale_cache = $locale;

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}

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return $locale;

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}

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return $this->locale_cache;

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}

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/**

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* @param string $code

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* @return false|string

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public function get_locale( $code ) {

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if ( ! $code ) {

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return false;

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}

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return $this->get_all_locales()->get( $code, $code );

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}

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/**

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* @return Collection

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public function get_all_locales() {

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if ( ! $this->all_locales ) {

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$sql = "

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SELECT

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l.code,

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m.locale,

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l.default_locale

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FROM {$this->wpdb->prefix}icl_languages AS l

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LEFT JOIN {$this->wpdb->prefix}icl_locale_map AS m ON m.code = l.code

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$this->all_locales = wpml_collect( $this->wpdb->get_results( $sql ) )

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->mapWithKeys(

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function( $row ) {

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if ( $row->locale ) {

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$locale = $row->locale;

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} elseif ( $row->default_locale ) {

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$locale = $row->default_locale;

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} else {

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$locale = $row->code;

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}

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return [ $row->code => $locale ];

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}

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);

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}

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return $this->all_locales;

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}

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public function switch_locale( $lang_code = false ) {

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global $l10n;

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static $original_l10n;

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if ( ! empty( $lang_code ) ) {

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$original_l10n = isset( $l10n['sitepress'] ) ? $l10n['sitepress'] : null;

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if ( $original_l10n !== null ) {

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unset( $l10n['sitepress'] );

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}

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load_textdomain( 'sitepress',

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WPML_PLUGIN_PATH . '/locale/sitepress-' . $this->get_locale( $lang_code ) . '.mo' );

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} else { // switch back

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$l10n['sitepress'] = $original_l10n;

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}

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}

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public function get_locale_file_names() {

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$locales = array();

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$res = $this->wpdb->get_results( "

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SELECT lm.code, locale

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FROM {$this->wpdb->prefix}icl_locale_map lm JOIN {$this->wpdb->prefix}icl_languages l ON lm.code = l.code AND l.active=1" );

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foreach ( $res as $row ) {

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$locales[ $row->code ] = $row->locale;

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}

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return $locales;

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}

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private function language_needs_title_sanitization() {

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$lang_needs_filter = array( 'de_DE', 'da_DK' );

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$current_lang = $this->sitepress->get_language_details( $this->sitepress->get_current_language() );

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$needs_filter = false;

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if ( ! isset( $current_lang['default_locale'] ) ) {

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return $needs_filter;

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}

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if ( in_array( $current_lang['default_locale'], $lang_needs_filter, true ) ) {

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$needs_filter = true;

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}

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return $needs_filter;

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}

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function _language_attributes( $latr ) {

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return preg_replace(

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'#lang="([a-z]+)"#i',

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'lang="' . str_replace( '_', '-', $this->locale ) . '"',

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$latr );

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}

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/**

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* @return WPML_Locale

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public static function get_instance_from_sitepress() {

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/** SitePress $sitepress */

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global $sitepress;

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return $sitepress->get_wpml_locale();

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}

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}

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