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Developer Documentation

See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Fetches language packages from download.moodle.org server
 *
 * Language packages are available at https://download.moodle.org/langpack/
 * in ZIP format together with a file languages.md5 containing their hashes
 * and meta info.
 * Locally, language packs are saved into $CFG->dataroot/lang/
 *
 * @package    tool
 * @subpackage langimport
 * @copyright  2005 Yu Zhang
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require(__DIR__.'/../../../config.php');
require_once($CFG->libdir.'/adminlib.php');

admin_externalpage_setup('toollangimport');

if (empty($CFG->langotherroot)) {
    throw new moodle_exception('missingcfglangotherroot', 'tool_langimport');
}

$mode               = optional_param('mode', 0, PARAM_INT);              // action
$pack               = optional_param_array('pack', array(), PARAM_SAFEDIR);    // pack to install
$uninstalllang      = optional_param_array('uninstalllang', array(), PARAM_LANG);// installed pack to uninstall
$confirmtounistall  = optional_param('confirmtouninstall', '', PARAM_SAFEPATH);  // uninstallation confirmation
$purgecaches        = optional_param('purgecaches', false, PARAM_BOOL);  // explicit caches reset

> // Filter the uninstall language list. if ($purgecaches) { > // If the list contains a language which is not installed, it is replaced with an empty string. require_sesskey(); > // When we try to uninstall an empty string, we uninstall every language. get_string_manager()->reset_caches(); > $uninstalllang = array_filter($uninstalllang, function($lang) { redirect($PAGE->url); > return !empty($lang); } > }); >
if (!empty($CFG->skiplangupgrade)) { echo $OUTPUT->header(); echo $OUTPUT->box(get_string('langimportdisabled', 'tool_langimport')); echo $OUTPUT->single_button(new moodle_url($PAGE->url, array('purgecaches' => 1)), get_string('purgestringcaches', 'tool_langimport')); echo $OUTPUT->footer(); die; } define('INSTALLATION_OF_SELECTED_LANG', 2); define('DELETION_OF_SELECTED_LANG', 4); define('UPDATE_ALL_LANG', 5); get_string_manager()->reset_caches(); $controller = new tool_langimport\controller(); if (($mode == INSTALLATION_OF_SELECTED_LANG) and confirm_sesskey() and !empty($pack)) {
> if (is_array($pack) && count($pack) > 1) { core_php_time_limit::raise(); > // Installing multiple languages can take a while - perform it asynchronously in the background. $controller->install_languagepacks($pack); > $controller->schedule_languagepacks_installation($pack); } > $controller->redirect($PAGE->url); > } else { if ($mode == DELETION_OF_SELECTED_LANG and (!empty($uninstalllang) or !empty($confirmtounistall))) { > // Single language pack to be installed synchronously. It should be reasonably quick and can be used for debugging, too.
// Actually deleting languages, languages to delete are passed as GET parameter as string
> $controller->redirect($PAGE->url); // ...need to populate them to array. > }
if (empty($uninstalllang)) { $uninstalllang = explode('/', $confirmtounistall); } if (in_array('en', $uninstalllang)) { // TODO. $controller->errors[] = get_string('noenglishuninstall', 'tool_langimport'); } else if (empty($confirmtounistall) and confirm_sesskey()) { // User chose langs to be deleted, show confirmation. echo $OUTPUT->header(); echo $OUTPUT->confirm(get_string('uninstallconfirm', 'tool_langimport', implode(', ', $uninstalllang)), new moodle_url($PAGE->url, array( 'mode' => DELETION_OF_SELECTED_LANG, 'confirmtouninstall' => implode('/', $uninstalllang), )), $PAGE->url); echo $OUTPUT->footer(); die; } else if (confirm_sesskey()) { // Deleting languages. foreach ($uninstalllang as $ulang) { $controller->uninstall_language($ulang); }
<
> $controller->redirect($PAGE->url);
} } if ($mode == UPDATE_ALL_LANG) { core_php_time_limit::raise(); $controller->update_all_installed_languages(); } get_string_manager()->reset_caches();
> $PAGE->set_primary_active_tab('siteadminnode'); echo $OUTPUT->header(); >
echo $OUTPUT->heading(get_string('langimport', 'tool_langimport')); $installedlangs = get_string_manager()->get_list_of_translations(true); $locale = new \tool_langimport\locale();
> $missinglocales = ''; > if ($availablelangs = $controller->availablelangs) { $missingparents = array(); > $remote = true; foreach ($installedlangs as $installedlang => $langpackname) { > } else { // Check locale availability. > $remote = false; if (!$locale->check_locale_availability($installedlang)) { > $availablelangs = array(); $missinglocales .= '<li>'.$langpackname.'</li>'; > $a = [ } > 'src' => $controller->lang_pack_url(), > 'dest' => $CFG->dataroot.'/lang/', $parent = get_parent_language($installedlang); > ]; if (empty($parent)) { > $errormessage = get_string('downloadnotavailable', 'tool_langimport', $a); continue; > \core\notification::error($errormessage); } > } if (!isset($installedlangs[$parent])) { >
$missingparents[$installedlang] = $parent;
> // This aligns the name of the language to match the available languages using } > // both the name for the language and the localized name for the language. } > $alang = array_filter($availablelangs, function($k) use ($installedlang) { > return $k[0] == $installedlang; if (!empty($missinglocales)) { > }); // There is at least one missing locale. > $alang = array_pop($alang); $a = new stdClass(); > if (!empty($alang[0]) and trim($alang[0]) !== 'en') { $a->globallocale = moodle_getlocale(); > $installedlangs[$installedlang] = $alang[2] . ' &lrm;(' . $alang[0] . ')&lrm;'; $a->missinglocales = $missinglocales; > } $controller->errors[] = get_string('langunsupported', 'tool_langimport', $a); >
}
< if ($availablelangs = $controller->availablelangs) { < $remote = true; < } else { < $remote = false; < $availablelangs = array(); < $a = [ < 'src' => $controller->lang_pack_url(), < 'dest' => $CFG->dataroot.'/lang/', < ]; < $errormessage = get_string('downloadnotavailable', 'tool_langimport', $a); < \core\notification::error($errormessage); < } <
if ($controller->info) { $info = implode('<br />', $controller->info); \core\notification::success($info); } if ($controller->errors) { $info = implode('<br />', $controller->errors); \core\notification::error($info);
> } } > > // Inform about pending language packs installations. if ($missingparents) { > foreach (\core\task\manager::get_adhoc_tasks('\tool_langimport\task\install_langpacks') as $installtask) { foreach ($missingparents as $l => $parent) { > $installtaskdata = $installtask->get_custom_data(); $a = new stdClass(); > $a->lang = $installedlangs[$l]; > if (!empty($installtaskdata->langs)) { $a->parent = $parent; > \core\notification::info(get_string('installpending', 'tool_langimport', implode(', ', $installtaskdata->langs))); foreach ($availablelangs as $alang) { > }
if ($alang[0] == $parent) { $shortlang = $alang[0]; $a->parent = $alang[2].' ('.$shortlang.')'; } } $info = get_string('missinglangparent', 'tool_langimport', $a); \core\notification::error($info); } } $uninstallurl = new moodle_url('/admin/tool/langimport/index.php', array('mode' => DELETION_OF_SELECTED_LANG)); $updateurl = null; if ($remote) { $updateurl = new moodle_url('/admin/tool/langimport/index.php', array('mode' => UPDATE_ALL_LANG)); } $installurl = new moodle_url('/admin/tool/langimport/index.php', array('mode' => INSTALLATION_OF_SELECTED_LANG)); // List of available languages. $options = array(); foreach ($availablelangs as $alang) { if (!empty($alang[0]) and trim($alang[0]) !== 'en' and !$controller->is_installed_lang($alang[0], $alang[1])) { $options[$alang[0]] = $alang[2].' &lrm;('.$alang[0].')&lrm;'; } } $renderable = new \tool_langimport\output\langimport_page($installedlangs, $options, $uninstallurl, $updateurl, $installurl); $output = $PAGE->get_renderer('tool_langimport'); echo $output->render($renderable); $PAGE->requires->strings_for_js(array('uninstallconfirm', 'uninstall', 'selectlangs', 'noenglishuninstall'), 'tool_langimport'); $PAGE->requires->yui_module('moodle-core-languninstallconfirm', 'Y.M.core.languninstallconfirm.init', array(array('uninstallUrl' => $uninstallurl->out())) ); echo $OUTPUT->footer();