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<?php
/**
* WordPress Translation Installation Administration API
*
* @package WordPress
* @subpackage Administration
*/
/**
* Retrieve translations from WordPress Translation API.
*
* @since 4.0.0
*
* @param string $type Type of translations. Accepts 'plugins', 'themes', 'core'.
* @param array|object $args Translation API arguments. Optional.
* @return array|WP_Error {
* On success an associative array of translations, WP_Error on failure.
*
* @type array $translations {
* List of translations, each an array of data.
*
* @type array ...$0 {
* @type string $language Language code.
* @type string $version WordPress version.
* @type string $updated Date the translation was last updated, in MySQL datetime format.
* @type string $english_name English name of the language.
* @type string $native_name Native name of the language.
* @type string $package URL to download the translation package.
* @type string[] $iso Array of ISO language codes.
* @type array $strings Array of translated strings used in the installation process.
* }
* }
* }
*/
function translations_api( $type, $args = null ) {
if ( ! in_array( $type, array( 'plugins', 'themes', 'core' ), true ) ) {
return new WP_Error( 'invalid_type', __( 'Invalid translation type.' ) );
}
/**
* Allows a plugin to override the WordPress.org Translation Installation API entirely.
*
* @since 4.0.0
*
* @param false|array $result The result array. Default false.
* @param string $type The type of translations being requested.
* @param object $args Translation API arguments.
*/
$res = apply_filters( 'translations_api', false, $type, $args );
if ( false === $res ) {
$url = 'http://api.wordpress.org/translations/' . $type . '/1.0/';
$http_url = $url;
$ssl = wp_http_supports( array( 'ssl' ) );
if ( $ssl ) {
$url = set_url_scheme( $url, 'https' );
}
$options = array(
'timeout' => 3,
'body' => array(
'wp_version' => wp_get_wp_version(),
'locale' => get_locale(),
'version' => $args['version'], // Version of plugin, theme or core.
),
);
if ( 'core' !== $type ) {
$options['body']['slug'] = $args['slug']; // Plugin or theme slug.
}
$request = wp_remote_post( $url, $options );
if ( $ssl && is_wp_error( $request ) ) {
wp_trigger_error(
__FUNCTION__,
sprintf(
/* translators: %s: Support forums URL. */
__( '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="%s">support forums</a>.' ),
__( 'https://wordpress.org/support/forums/' )
) . ' ' . __( '(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
);
$request = wp_remote_post( $http_url, $options );
}
if ( is_wp_error( $request ) ) {
$res = new WP_Error(
'translations_api_failed',
sprintf(
/* translators: %s: Support forums URL. */
__( '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="%s">support forums</a>.' ),
__( 'https://wordpress.org/support/forums/' )
),
$request->get_error_message()
);
} else {
$res = json_decode( wp_remote_retrieve_body( $request ), true );
if ( ! is_object( $res ) && ! is_array( $res ) ) {
$res = new WP_Error(
'translations_api_failed',
sprintf(
/* translators: %s: Support forums URL. */
__( '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="%s">support forums</a>.' ),
__( 'https://wordpress.org/support/forums/' )
),
wp_remote_retrieve_body( $request )
);
}
}
}
/**
* Filters the Translation Installation API response results.
*
* @since 4.0.0
*
* @param array|WP_Error $res {
* On success an associative array of translations, WP_Error on failure.
*
* @type array $translations {
* List of translations, each an array of data.
*
* @type array ...$0 {
* @type string $language Language code.
* @type string $version WordPress version.
* @type string $updated Date the translation was last updated, in MySQL datetime format.
* @type string $english_name English name of the language.
* @type string $native_name Native name of the language.
* @type string $package URL to download the translation package.
* @type string[] $iso Array of ISO language codes.
* @type array $strings Array of translated strings used in the installation process.
* }
* }
* }
* @param string $type The type of translations being requested.
* @param object $args Translation API arguments.
*/
return apply_filters( 'translations_api_result', $res, $type, $args );
}
/**
* Get available translations from the WordPress.org API.
*
* @since 4.0.0
*
* @see translations_api()
*
* @return array {
* Array of translations keyed by the language code, each an associative array of data.
* If the API response results in an error, an empty array will be returned.
*
* @type array ...$0 {
* @type string $language Language code.
* @type string $version WordPress version.
* @type string $updated Date the translation was last updated, in MySQL datetime format.
* @type string $english_name English name of the language.
* @type string $native_name Native name of the language.
* @type string $package URL to download the translation package.
* @type string[] $iso Array of ISO language codes.
* @type array $strings Array of translated strings used in the installation process.
* }
* }
*/
function wp_get_available_translations() {
if ( ! wp_installing() ) {
$translations = get_site_transient( 'available_translations' );
if ( false !== $translations ) {
return $translations;
}
}
$api = translations_api( 'core', array( 'version' => wp_get_wp_version() ) );
if ( is_wp_error( $api ) || empty( $api['translations'] ) ) {
return array();
}
$translations = array();
// Key the array with the language code.
foreach ( $api['translations'] as $translation ) {
$translations[ $translation['language'] ] = $translation;
}
if ( ! defined( 'WP_INSTALLING' ) ) {
set_site_transient( 'available_translations', $translations, 3 * HOUR_IN_SECONDS );
}
return $translations;
}
/**
* Output the select form for the language selection on the installation screen.
*
* @since 4.0.0
*
* @global string $wp_local_package Locale code of the package.
*
* @param array[] $languages Array of available languages (populated via the Translation API).
*/
function wp_install_language_form( $languages ) {
global $wp_local_package;
$installed_languages = get_available_languages();
echo "<label class='screen-reader-text' for='language'>Select a default language</label>\n";
echo "<select size='14' name='language' id='language'>\n";
echo '<option value="" lang="en" selected="selected" data-continue="Continue" data-installed="1">English (United States)</option>';
echo "\n";
if ( ! empty( $wp_local_package ) && isset( $languages[ $wp_local_package ] ) ) {
if ( isset( $languages[ $wp_local_package ] ) ) {
$language = $languages[ $wp_local_package ];
printf(
'<option value="%s" lang="%s" data-continue="%s"%s>%s</option>' . "\n",
esc_attr( $language['language'] ),
esc_attr( current( $language['iso'] ) ),
esc_attr( $language['strings']['continue'] ? $language['strings']['continue'] : 'Continue' ),
in_array( $language['language'], $installed_languages, true ) ? ' data-installed="1"' : '',
esc_html( $language['native_name'] )
);
unset( $languages[ $wp_local_package ] );
}
}
foreach ( $languages as $language ) {
printf(
'<option value="%s" lang="%s" data-continue="%s"%s>%s</option>' . "\n",
esc_attr( $language['language'] ),
esc_attr( current( $language['iso'] ) ),
esc_attr( $language['strings']['continue'] ? $language['strings']['continue'] : 'Continue' ),
in_array( $language['language'], $installed_languages, true ) ? ' data-installed="1"' : '',
esc_html( $language['native_name'] )
);
}
echo "</select>\n";
echo '<p class="step"><span class="spinner"></span><input id="language-continue" type="submit" class="button button-primary button-large" value="Continue" /></p>';
}
/**
* Download a language pack.
*
* @since 4.0.0
*
* @see wp_get_available_translations()
*
* @param string $download Language code to download.
* @return string|false Returns the language code if successfully downloaded
* (or already installed), or false on failure.
*/
function wp_download_language_pack( $download ) {
// Check if the translation is already installed.
if ( in_array( $download, get_available_languages(), true ) ) {
return $download;
}
if ( ! wp_is_file_mod_allowed( 'download_language_pack' ) ) {
return false;
}
// Confirm the translation is one we can download.
$translations = wp_get_available_translations();
if ( ! $translations ) {
return false;
}
foreach ( $translations as $translation ) {
if ( $translation['language'] === $download ) {
$translation_to_load = true;
break;
}
}
if ( empty( $translation_to_load ) ) {
return false;
}
$translation = (object) $translation;
require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
$skin = new Automatic_Upgrader_Skin();
$upgrader = new Language_Pack_Upgrader( $skin );
$translation->type = 'core';
$result = $upgrader->upgrade( $translation, array( 'clear_update_cache' => false ) );
if ( ! $result || is_wp_error( $result ) ) {
return false;
}
return $translation->language;
}
/**
* Check if WordPress has access to the filesystem without asking for
* credentials.
*
* @since 4.0.0
*
* @return bool Returns true on success, false on failure.
*/
function wp_can_install_language_pack() {
if ( ! wp_is_file_mod_allowed( 'can_install_language_pack' ) ) {
return false;
}
require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
$skin = new Automatic_Upgrader_Skin();
$upgrader = new Language_Pack_Upgrader( $skin );
$upgrader->init();
$check = $upgrader->fs_connect( array( WP_CONTENT_DIR, WP_LANG_DIR ) );
if ( ! $check || is_wp_error( $check ) ) {
return false;
}
return true;
}