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The `WP_INSTALLING` constant is a flag that WordPress sets in a number of places, telling the system that options should be fetched directly from the database instead of from the cache, that WP should not ping wordpress.org for updates, that the normal "not installed" checks should be bypassed, and so on. A constant is generally necessary for this purpose, because the flag is typically set before the WP bootstrap, meaning that WP functions are not yet available. However, it is possible - notably, during `wpmu_create_blog()` - for the "installing" flag to be set after WP has already loaded. In these cases, `WP_INSTALLING` would be set for the remainder of the process, since there's no way to change a constant once it's defined. This, in turn, polluted later function calls that ought to have been outside the scope of site creation, particularly the non-caching of option data. The problem was particularly evident in the case of the automated tests, where `WP_INSTALLING` was set the first time a site was created, and remained set for the rest of the suite. The new `wp_installing()` function allows developers to fetch the current installation status (when called without any arguments) or to set the installation status (when called with a boolean `true` or `false`). Use of the `WP_INSTALLING` constant is still supported; `wp_installing()` will default to `true` if the constant is defined during the bootstrap. Props boonebgorges, jeremyfelt. See #31130. Built from https://develop.svn.wordpress.org/trunk@34828 git-svn-id: http://core.svn.wordpress.org/trunk@34793 1a063a9b-81f0-0310-95a4-ce76da25c4cd
244 lines
8.0 KiB
PHP
244 lines
8.0 KiB
PHP
<?php
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/**
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* WordPress Translation Install Administration API
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*
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* @package WordPress
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* @subpackage Administration
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*/
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/**
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* Retrieve translations from WordPress Translation API.
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*
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* @since 4.0.0
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*
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* @param string $type Type of translations. Accepts 'plugins', 'themes', 'core'.
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* @param array|object $args Translation API arguments. Optional.
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* @return object|WP_Error On success an object of translations, WP_Error on failure.
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*/
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function translations_api( $type, $args = null ) {
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include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version
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if ( ! in_array( $type, array( 'plugins', 'themes', 'core' ) ) ) {
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return new WP_Error( 'invalid_type', __( 'Invalid translation type.' ) );
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}
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/**
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* Allows a plugin to override the WordPress.org Translation Install API entirely.
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*
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* @since 4.0.0
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*
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* @param bool|array $result The result object. Default false.
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* @param string $type The type of translations being requested.
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* @param object $args Translation API arguments.
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*/
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$res = apply_filters( 'translations_api', false, $type, $args );
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if ( false === $res ) {
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$url = $http_url = 'http://api.wordpress.org/translations/' . $type . '/1.0/';
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if ( $ssl = wp_http_supports( array( 'ssl' ) ) ) {
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$url = set_url_scheme( $url, 'https' );
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}
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$options = array(
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'timeout' => 3,
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'body' => array(
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'wp_version' => $wp_version,
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'locale' => get_locale(),
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'version' => $args['version'], // Version of plugin, theme or core
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),
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);
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if ( 'core' !== $type ) {
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$options['body']['slug'] = $args['slug']; // Plugin or theme slug
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}
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$request = wp_remote_post( $url, $options );
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if ( $ssl && is_wp_error( $request ) ) {
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trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );
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$request = wp_remote_post( $http_url, $options );
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}
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if ( is_wp_error( $request ) ) {
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$res = new WP_Error( 'translations_api_failed', __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ), $request->get_error_message() );
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} else {
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$res = json_decode( wp_remote_retrieve_body( $request ), true );
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if ( ! is_object( $res ) && ! is_array( $res ) ) {
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$res = new WP_Error( 'translations_api_failed', __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ), wp_remote_retrieve_body( $request ) );
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}
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}
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}
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/**
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* Filter the Translation Install API response results.
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*
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* @since 4.0.0
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*
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* @param object|WP_Error $res Response object or WP_Error.
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* @param string $type The type of translations being requested.
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* @param object $args Translation API arguments.
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*/
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return apply_filters( 'translations_api_result', $res, $type, $args );
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}
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/**
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* Get available translations from the WordPress.org API.
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*
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* @since 4.0.0
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*
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* @see translations_api()
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*
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* @return array Array of translations, each an array of data. If the API response results
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* in an error, an empty array will be returned.
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*/
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function wp_get_available_translations() {
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if ( ! wp_installing() && false !== ( $translations = get_site_transient( 'available_translations' ) ) ) {
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return $translations;
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}
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include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version
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$api = translations_api( 'core', array( 'version' => $wp_version ) );
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if ( is_wp_error( $api ) || empty( $api['translations'] ) ) {
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return array();
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}
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$translations = array();
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// Key the array with the language code for now.
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foreach ( $api['translations'] as $translation ) {
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$translations[ $translation['language'] ] = $translation;
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}
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if ( ! defined( 'WP_INSTALLING' ) ) {
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set_site_transient( 'available_translations', $translations, 3 * HOUR_IN_SECONDS );
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}
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return $translations;
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}
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/**
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* Output the select form for the language selection on the installation screen.
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*
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* @since 4.0.0
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*
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* @global string $wp_local_package
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*
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* @param array $languages Array of available languages (populated via the Translation API).
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*/
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function wp_install_language_form( $languages ) {
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global $wp_local_package;
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$installed_languages = get_available_languages();
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echo "<label class='screen-reader-text' for='language'>Select a default language</label>\n";
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echo "<select size='14' name='language' id='language'>\n";
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echo '<option value="" lang="en" selected="selected" data-continue="Continue" data-installed="1">English (United States)</option>';
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echo "\n";
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if ( ! empty( $wp_local_package ) && isset( $languages[ $wp_local_package ] ) ) {
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if ( isset( $languages[ $wp_local_package ] ) ) {
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$language = $languages[ $wp_local_package ];
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printf( '<option value="%s" lang="%s" data-continue="%s"%s>%s</option>' . "\n",
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esc_attr( $language['language'] ),
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esc_attr( current( $language['iso'] ) ),
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esc_attr( $language['strings']['continue'] ),
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in_array( $language['language'], $installed_languages ) ? ' data-installed="1"' : '',
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esc_html( $language['native_name'] ) );
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unset( $languages[ $wp_local_package ] );
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}
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}
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foreach ( $languages as $language ) {
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printf( '<option value="%s" lang="%s" data-continue="%s"%s>%s</option>' . "\n",
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esc_attr( $language['language'] ),
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esc_attr( current( $language['iso'] ) ),
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esc_attr( $language['strings']['continue'] ),
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in_array( $language['language'], $installed_languages ) ? ' data-installed="1"' : '',
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esc_html( $language['native_name'] ) );
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}
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echo "</select>\n";
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echo '<p class="step"><span class="spinner"></span><input id="language-continue" type="submit" class="button button-primary button-large" value="Continue" /></p>';
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}
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/**
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* Download a language pack.
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*
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* @since 4.0.0
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*
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* @see wp_get_available_translations()
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*
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* @param string $download Language code to download.
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* @return string|bool Returns the language code if successfully downloaded
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* (or already installed), or false on failure.
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*/
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function wp_download_language_pack( $download ) {
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// Check if the translation is already installed.
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if ( in_array( $download, get_available_languages() ) ) {
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return $download;
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}
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if ( defined( 'DISALLOW_FILE_MODS' ) && DISALLOW_FILE_MODS ) {
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return false;
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}
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// Confirm the translation is one we can download.
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$translations = wp_get_available_translations();
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if ( ! $translations ) {
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return false;
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}
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foreach ( $translations as $translation ) {
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if ( $translation['language'] === $download ) {
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$translation_to_load = true;
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break;
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}
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}
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if ( empty( $translation_to_load ) ) {
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return false;
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}
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$translation = (object) $translation;
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require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
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$skin = new Automatic_Upgrader_Skin;
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$upgrader = new Language_Pack_Upgrader( $skin );
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$translation->type = 'core';
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$result = $upgrader->upgrade( $translation, array( 'clear_update_cache' => false ) );
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if ( ! $result || is_wp_error( $result ) ) {
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return false;
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}
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return $translation->language;
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}
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/**
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* Check if WordPress has access to the filesystem without asking for
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* credentials.
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*
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* @since 4.0.0
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*
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* @return bool Returns true on success, false on failure.
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*/
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function wp_can_install_language_pack() {
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if ( defined( 'DISALLOW_FILE_MODS' ) && DISALLOW_FILE_MODS ) {
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return false;
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}
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require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
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$skin = new Automatic_Upgrader_Skin;
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$upgrader = new Language_Pack_Upgrader( $skin );
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$upgrader->init();
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$check = $upgrader->fs_connect( array( WP_CONTENT_DIR, WP_LANG_DIR ) );
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if ( ! $check || is_wp_error( $check ) ) {
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return false;
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}
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return true;
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}
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