<?php

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namespace WPForms\Integrations\WPorg;

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use Language_Pack_Upgrader;

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use Automatic_Upgrader_Skin;

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use WPForms\Integrations\IntegrationInterface;

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/**

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* Load translations from WordPress.org for the Lite version.

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*

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* @since 1.6.9

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*/

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class Translations implements IntegrationInterface {

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/**

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* Full wp.org API URL for the plugin.

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*

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* @since 1.6.9

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*/

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const API_URL = 'https://api.wordpress.org/plugins/update-check/1.1/';

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/**

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* Indicate if current integration is allowed to load.

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*

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* @since 1.6.9

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*

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* @return bool

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*/

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public function allow_load() {

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if ( ! is_admin() ) {

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return false;

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}

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// For WordPress versions 4.9.0-4.9.4 this file must be included before the current_user_can() check.

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require_once ABSPATH . 'wp-admin/includes/template.php';

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if ( ! current_user_can( 'install_languages' ) ) {

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return false;

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}

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require_once ABSPATH . 'wp-admin/includes/file.php';

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

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return wp_can_install_language_pack();

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}

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/**

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* Load an integration.

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*

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* @since 1.6.9

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*/

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public function load() {

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// Download translations for all addons when language for the site has been changed.

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add_action( 'update_option_WPLANG', [ $this, 'download_translations' ] );

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}

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/**

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* Get translation packages from the wp.org API.

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*

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* @since 1.6.9

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*

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* @return array

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*/

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private function get_translation_packages() {

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$plugin_data = get_plugin_data( WPFORMS_PLUGIN_FILE );

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$plugin_data['Name'] = 'WPForms Lite';

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$plugin_data['Version'] = '9999.0';

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$request = wp_remote_post(

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self::API_URL,

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[

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'body' => [

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'plugins' => wp_json_encode(

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[

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'plugins' => [

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'wpforms-lite/wpforms.php' => $plugin_data,

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],

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'active' => [],

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]

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),

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'locale' => wp_json_encode( get_available_languages() ),

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],

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]

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);

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$code = wp_remote_retrieve_response_code( $request );

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$body = wp_remote_retrieve_body( $request );

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if ( $code !== 200 || $body === 'error' || is_wp_error( $body ) ) {

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return [];

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}

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$body = json_decode( $body, true );

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return ! empty( $body['translations'] ) ? $body['translations'] : [];

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}

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/**

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* Download translations for all available languages.

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*

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* @since 1.6.9

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*/

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public function download_translations() {

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$translations = $this->get_translation_packages();

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if ( empty( $translations ) ) {

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return;

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}

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$skin = new Automatic_Upgrader_Skin();

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$upgrader = new Language_Pack_Upgrader( $skin );

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foreach ( $translations as $language ) {

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// Sometimes a language can be passed as array.

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$this->download_package( (object) $language, $upgrader, $skin );

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}

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}

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/**

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* Download translation for the language.

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*

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* @since 1.6.9

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*

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* @param object $language Language package.

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* @param Language_Pack_Upgrader $upgrader The instance of the core class used for updating/installing language packs (translations).

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* @param Automatic_Upgrader_Skin $skin Upgrader Skin for Automatic WordPress Upgrades.

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*/

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private function download_package( $language, Language_Pack_Upgrader $upgrader, Automatic_Upgrader_Skin $skin ) {

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if ( ! property_exists( $language, 'package' ) || empty( $language->package ) ) {

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return;

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}

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$skin->language_update = $language;

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$upgrader->run(

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[

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'package' => $language->package,

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'destination' => WP_LANG_DIR . '/plugins',

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'abort_if_destination_exists' => false,

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'is_multi' => true,

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'hook_extra' => [

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'language_update_type' => $language->type,

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'language_update' => $language,

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],

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]

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);

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}

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}

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