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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Fetches language packages from download.moodle.org server
  19   *
  20   * Language packages are available at https://download.moodle.org/langpack/
  21   * in ZIP format together with a file languages.md5 containing their hashes
  22   * and meta info.
  23   * Locally, language packs are saved into $CFG->dataroot/lang/
  24   *
  25   * @package    tool
  26   * @subpackage langimport
  27   * @copyright  2005 Yu Zhang
  28   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  29   */
  30  
  31  require(__DIR__.'/../../../config.php');
  32  require_once($CFG->libdir.'/adminlib.php');
  33  
  34  admin_externalpage_setup('toollangimport');
  35  
  36  if (empty($CFG->langotherroot)) {
  37      throw new moodle_exception('missingcfglangotherroot', 'tool_langimport');
  38  }
  39  
  40  $mode          = optional_param('mode', 0, PARAM_INT);              // action
  41  $pack          = optional_param_array('pack', array(), PARAM_SAFEDIR);    // pack to install
  42  $uninstalllang = optional_param('uninstalllang', '', PARAM_LANG);   // installed pack to uninstall
  43  $confirm       = optional_param('confirm', 0, PARAM_BOOL);          // uninstallation confirmation
  44  $purgecaches   = optional_param('purgecaches', false, PARAM_BOOL);  // explicit caches reset
  45  
  46  if ($purgecaches) {
  47      require_sesskey();
  48      get_string_manager()->reset_caches();
  49      redirect($PAGE->url);
  50  }
  51  
  52  if (!empty($CFG->skiplangupgrade)) {
  53      echo $OUTPUT->header();
  54      echo $OUTPUT->box(get_string('langimportdisabled', 'tool_langimport'));
  55      echo $OUTPUT->single_button(new moodle_url($PAGE->url, array('purgecaches' => 1)), get_string('purgestringcaches', 'tool_langimport'));
  56      echo $OUTPUT->footer();
  57      die;
  58  }
  59  
  60  define('INSTALLATION_OF_SELECTED_LANG', 2);
  61  define('DELETION_OF_SELECTED_LANG', 4);
  62  define('UPDATE_ALL_LANG', 5);
  63  
  64  get_string_manager()->reset_caches();
  65  
  66  $controller = new tool_langimport\controller();
  67  
  68  if (($mode == INSTALLATION_OF_SELECTED_LANG) and confirm_sesskey() and !empty($pack)) {
  69      core_php_time_limit::raise();
  70      $controller->install_languagepacks($pack);
  71  }
  72  
  73  if ($mode == DELETION_OF_SELECTED_LANG and !empty($uninstalllang)) {
  74      if ($uninstalllang == 'en') {
  75          // TODO.
  76          $controller->errors[] = 'English language pack can not be uninstalled';
  77  
  78      } else if (!$confirm and confirm_sesskey()) {
  79          echo $OUTPUT->header();
  80          echo $OUTPUT->confirm(get_string('uninstallconfirm', 'tool_langimport', $uninstalllang),
  81                       'index.php?mode='.DELETION_OF_SELECTED_LANG.'&uninstalllang='.$uninstalllang.'&confirm=1',
  82                       'index.php');
  83          echo $OUTPUT->footer();
  84          die;
  85  
  86      } else if (confirm_sesskey()) {
  87          $controller->uninstall_language($uninstalllang);
  88      }
  89  }
  90  
  91  if ($mode == UPDATE_ALL_LANG) {
  92      core_php_time_limit::raise();
  93      $controller->update_all_installed_languages();
  94  }
  95  get_string_manager()->reset_caches();
  96  
  97  echo $OUTPUT->header();
  98  echo $OUTPUT->heading(get_string('langimport', 'tool_langimport'));
  99  
 100  $installedlangs = get_string_manager()->get_list_of_translations(true);
 101  
 102  $missingparents = array();
 103  foreach ($installedlangs as $installedlang => $unused) {
 104      $parent = get_parent_language($installedlang);
 105      if (empty($parent)) {
 106          continue;
 107      }
 108      if (!isset($installedlangs[$parent])) {
 109          $missingparents[$installedlang] = $parent;
 110      }
 111  }
 112  
 113  if ($availablelangs = $controller->availablelangs) {
 114      $remote = true;
 115  } else {
 116      $remote = false;
 117      $availablelangs = array();
 118      echo $OUTPUT->box_start();
 119      print_string('remotelangnotavailable', 'tool_langimport', $CFG->dataroot.'/lang/');
 120      echo $OUTPUT->box_end();
 121  }
 122  
 123  if ($controller->info) {
 124      $info = implode('<br />', $controller->info);
 125      echo $OUTPUT->notification($info, 'notifysuccess');
 126  }
 127  
 128  if ($controller->errors) {
 129      $info = implode('<br />', $controller->errors);
 130      echo $OUTPUT->notification($info, 'notifyproblem');
 131  }
 132  
 133  if ($missingparents) {
 134      foreach ($missingparents as $l => $parent) {
 135          $a = new stdClass();
 136          $a->lang   = $installedlangs[$l];
 137          $a->parent = $parent;
 138          foreach ($availablelangs as $alang) {
 139              if ($alang[0] == $parent) {
 140                  $shortlang = $alang[0];
 141                  $a->parent = $alang[2].' ('.$shortlang.')';
 142              }
 143          }
 144          $info = get_string('missinglangparent', 'tool_langimport', $a);
 145          echo $OUTPUT->notification($info, 'notifyproblem');
 146      }
 147  }
 148  
 149  echo $OUTPUT->box_start();
 150  
 151  echo html_writer::start_tag('table');
 152  echo html_writer::start_tag('tr');
 153  
 154  // list of installed languages
 155  $url = new moodle_url('/admin/tool/langimport/index.php', array('mode' => DELETION_OF_SELECTED_LANG));
 156  echo html_writer::start_tag('td', array('valign' => 'top'));
 157  echo html_writer::start_tag('form', array('id' => 'uninstallform', 'action' => $url->out(), 'method' => 'post'));
 158  echo html_writer::start_tag('fieldset');
 159  echo html_writer::label(get_string('installedlangs', 'tool_langimport'), 'menuuninstalllang');
 160  echo html_writer::empty_tag('br');
 161  echo html_writer::select($installedlangs, 'uninstalllang', '', false, array('size' => 15));
 162  echo html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
 163  echo html_writer::empty_tag('br');
 164  echo html_writer::empty_tag('input', array('type' => 'submit', 'value' => get_string('uninstall', 'tool_langimport')));
 165  echo html_writer::end_tag('fieldset');
 166  echo html_writer::end_tag('form');
 167  if ($remote) {
 168      $url = new moodle_url('/admin/tool/langimport/index.php', array('mode' => UPDATE_ALL_LANG));
 169      echo html_writer::start_tag('form', array('id' => 'updateform', 'action' => $url->out(), 'method' => 'post'));
 170      echo html_writer::tag('fieldset', html_writer::empty_tag('input', array('type' => 'submit', 'value' => get_string('updatelangs','tool_langimport'))));
 171      echo html_writer::end_tag('form');
 172  }
 173  echo html_writer::end_tag('td');
 174  
 175  // list of available languages
 176  $options = array();
 177  foreach ($availablelangs as $alang) {
 178      if (!empty($alang[0]) and trim($alang[0]) !== 'en' and !$controller->is_installed_lang($alang[0], $alang[1])) {
 179          $options[$alang[0]] = $alang[2].' ('.$alang[0].')';
 180      }
 181  }
 182  if (!empty($options)) {
 183      echo html_writer::start_tag('td', array('valign' => 'top'));
 184      $url = new moodle_url('/admin/tool/langimport/index.php', array('mode' => INSTALLATION_OF_SELECTED_LANG));
 185      echo html_writer::start_tag('form', array('id' => 'installform', 'action' => $url->out(), 'method' => 'post'));
 186      echo html_writer::start_tag('fieldset');
 187      echo html_writer::label(get_string('availablelangs','install'), 'menupack');
 188      echo html_writer::empty_tag('br');
 189      echo html_writer::select($options, 'pack[]', '', false, array('size' => 15, 'multiple' => 'multiple'));
 190      echo html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
 191      echo html_writer::empty_tag('br');
 192      echo html_writer::empty_tag('input', array('type' => 'submit', 'value' => get_string('install','tool_langimport')));
 193      echo html_writer::end_tag('fieldset');
 194      echo html_writer::end_tag('form');
 195      echo html_writer::end_tag('td');
 196  }
 197  
 198  echo html_writer::end_tag('tr');
 199  echo html_writer::end_tag('table');
 200  echo $OUTPUT->box_end();
 201  echo $OUTPUT->footer();
 202  die();