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<?php

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/**

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* Utility for I10n

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* @package PUM

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if ( ! defined( 'ABSPATH' ) ) {

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exit;

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}

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class PUM_Utils_I10n {

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/**

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* Fetches translation status data from WordPress.org API.

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* Stores it for 1 week.

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* @return array

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public static function translation_status() {

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$translations = get_transient( 'pum_alerts_translation_status' );

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if ( ! $translations ) {

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$response = wp_remote_get( 'https://api.wordpress.org/translations/plugins/1.0/?slug=popup-maker&version=' . Popup_Maker::$VER );

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$response_body = json_decode( wp_remote_retrieve_body( $response ), true );

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$translations = $response_body['translations'];

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set_transient( 'pum_alerts_translation_status', $translations, 604800 );

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}

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$ret = [];

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foreach ( $translations as $translation ) {

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$ret[ $translation['language'] ] = $translation;

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}

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return $ret;

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}

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/**

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* Get locales matching the HTTP accept language header.

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* @return array List of locales.

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public static function get_non_en_accepted_wp_locales_from_header() {

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$res = [];

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$http_locales = self::get_http_locales();

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if ( empty( $http_locales ) ) {

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return $res;

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}

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if ( is_array( $http_locales ) ) {

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foreach ( $http_locales as $http_locale ) {

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$http_locale = explode( '-', $http_locale );

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$lang = $http_locale[0];

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$region = ! empty( $http_locale[1] ) ? $http_locale[1] : null;

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if ( is_null( $region ) ) {

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$region = $lang;

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}

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* Discard English -- it's the default for all browsers,

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* ergo not very reliable information

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if ( 'en' === $lang ) {

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continue;

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}

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// Region should be uppercase.

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$region = strtoupper( $region );

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$mapped = self::map_locale( $lang, $region );

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if ( $mapped ) {

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$res[] = $mapped;

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}

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}

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$res = array_unique( $res );

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}

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return $res;

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}

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/**

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* @return array

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public static function available_locales() {

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static $available_locales;

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if ( ! isset( $available_locales ) ) {

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if ( ! function_exists( 'wp_get_available_translations' ) ) {

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require_once ABSPATH . 'wp-admin/includes/translation-install.php';

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}

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$available_locales = wp_get_available_translations();

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}

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return $available_locales;

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}

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/**

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* Tries to map a lang/region pair to one of our locales.

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* @param string $lang Lang part of the HTTP accept header.

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* @param string $region Region part of the HTTP accept header.

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* @return string|false Our locale matching $lang and $region, false otherwise.

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public static function map_locale( $lang, $region ) {

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$uregion = strtoupper( $region );

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$ulang = strtoupper( $lang );

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$variants = [

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"$lang-$region",

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"{$lang}_$region",

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"$lang-$uregion",

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"{$lang}_$uregion",

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"{$lang}_$ulang",

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$lang,

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];

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$available_locales = self::available_locales();

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$available_locales = array_keys( $available_locales );

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foreach ( $variants as $variant ) {

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if ( in_array( $variant, $available_locales ) ) {

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return $variant;

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}

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}

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foreach ( $available_locales as $locale ) {

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list( $locale_lang, ) = preg_split( '/[_-]/', $locale );

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if ( $lang === $locale_lang ) {

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return $locale;

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}

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}

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return false;

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}

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/**

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* Given a HTTP Accept-Language header $header

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* returns all the locales in it.

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* @return array Matched locales.

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public static function get_http_locales() {

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$locale_part_re = '[a-z]{2,}';

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$locale_re = "($locale_part_re(\-$locale_part_re)?)";

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if ( preg_match_all( "/$locale_re/i", isset( $_SERVER['HTTP_ACCEPT_LANGUAGE'] ) ? $_SERVER['HTTP_ACCEPT_LANGUAGE'] : '', $matches ) ) {

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return $matches[0];

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} else {

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return [];

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}

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}

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}

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