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acp_extensions.php

Zuletzt modifiziert: 09.10.2024, 12:52 - Dateigröße: 18.89 KiB


 001  <?php
 002  /**
 003  *
 004  * This file is part of the phpBB Forum Software package.
 005  *
 006  * @copyright (c) phpBB Limited <https://www.phpbb.com>
 007  * @license GNU General Public License, version 2 (GPL-2.0)
 008  *
 009  * For full copyright and license information, please see
 010  * the docs/CREDITS.txt file.
 011  *
 012  */
 013   
 014  use phpbb\exception\exception_interface;
 015  use phpbb\exception\version_check_exception;
 016   
 017  /**
 018  * @ignore
 019  */
 020  if (!defined('IN_PHPBB'))
 021  {
 022      exit;
 023  }
 024   
 025  class acp_extensions
 026  {
 027      var $u_action;
 028   
 029      private $db;
 030      private $config;
 031      private $template;
 032      private $user;
 033      private $cache;
 034      private $log;
 035      private $request;
 036   
 037      function main()
 038      {
 039          // Start the page
 040          global $config, $user, $template, $request, $phpbb_extension_manager, $db, $phpbb_root_path, $phpbb_log, $cache, $phpbb_dispatcher;
 041   
 042          $this->db = $db;
 043          $this->config = $config;
 044          $this->template = $template;
 045          $this->user = $user;
 046          $this->cache = $cache;
 047          $this->request = $request;
 048          $this->log = $phpbb_log;
 049          $this->phpbb_dispatcher = $phpbb_dispatcher;
 050   
 051          $user->add_lang(array('install', 'acp/extensions', 'migrator'));
 052   
 053          $this->page_title = 'ACP_EXTENSIONS';
 054   
 055          $action = $request->variable('action', 'list');
 056          $ext_name = $request->variable('ext_name', '');
 057   
 058          // What is a safe limit of execution time? Half the max execution time should be safe.
 059          $safe_time_limit = (ini_get('max_execution_time') / 2);
 060          $start_time = time();
 061   
 062          /**
 063          * Event to run a specific action on extension
 064          *
 065          * @event core.acp_extensions_run_action
 066          * @var    string    action            Action to run
 067          * @var    string    u_action        Url we are at
 068          * @var    string    ext_name        Extension name from request
 069          * @var    int        safe_time_limit    Safe limit of execution time
 070          * @var    int        start_time        Start time
 071          * @since 3.1.11-RC1
 072          */
 073          $u_action = $this->u_action;
 074          $vars = array('action', 'u_action', 'ext_name', 'safe_time_limit', 'start_time');
 075          extract($this->phpbb_dispatcher->trigger_event('core.acp_extensions_run_action', compact($vars)));
 076   
 077          // Cancel action
 078          if ($request->is_set_post('cancel'))
 079          {
 080              $action = 'list';
 081              $ext_name = '';
 082          }
 083   
 084          if (in_array($action, array('enable', 'disable', 'delete_data')) && !check_link_hash($request->variable('hash', ''), $action . '.' . $ext_name))
 085          {
 086              trigger_error('FORM_INVALID', E_USER_WARNING);
 087          }
 088   
 089          // If they've specified an extension, let's load the metadata manager and validate it.
 090          if ($ext_name)
 091          {
 092              $md_manager = new \phpbb\extension\metadata_manager($ext_name, $config, $phpbb_extension_manager, $phpbb_root_path);
 093   
 094              try
 095              {
 096                  $md_manager->get_metadata('all');
 097              }
 098              catch (exception_interface $e)
 099              {
 100                  $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
 101                  trigger_error($message, E_USER_WARNING);
 102              }
 103          }
 104   
 105          // What are we doing?
 106          switch ($action)
 107          {
 108              case 'set_config_version_check_force_unstable':
 109                  $force_unstable = $this->request->variable('force_unstable', false);
 110   
 111                  if ($force_unstable)
 112                  {
 113                      $s_hidden_fields = build_hidden_fields(array(
 114                          'force_unstable'    => $force_unstable,
 115                      ));
 116   
 117                      confirm_box(false, $user->lang('EXTENSION_FORCE_UNSTABLE_CONFIRM'), $s_hidden_fields);
 118                  }
 119                  else
 120                  {
 121                      $config->set('extension_force_unstable', false);
 122                      trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link($this->u_action));
 123                  }
 124                  break;
 125   
 126              case 'list':
 127              default:
 128                  if (confirm_box(true))
 129                  {
 130                      $config->set('extension_force_unstable', true);
 131                      trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link($this->u_action));
 132                  }
 133   
 134                  $this->list_enabled_exts($phpbb_extension_manager);
 135                  $this->list_disabled_exts($phpbb_extension_manager);
 136                  $this->list_available_exts($phpbb_extension_manager);
 137   
 138                  $this->template->assign_vars(array(
 139                      'U_VERSIONCHECK_FORCE'     => $this->u_action . '&amp;action=list&amp;versioncheck_force=1',
 140                      'FORCE_UNSTABLE'        => $config['extension_force_unstable'],
 141                      'U_ACTION'                 => $this->u_action,
 142                  ));
 143   
 144                  $this->tpl_name = 'acp_ext_list';
 145              break;
 146   
 147              case 'enable_pre':
 148                  if (!$md_manager->validate_dir())
 149                  {
 150                      trigger_error($user->lang['EXTENSION_DIR_INVALID'] . adm_back_link($this->u_action), E_USER_WARNING);
 151                  }
 152   
 153                  if (!$md_manager->validate_enable())
 154                  {
 155                      trigger_error($user->lang['EXTENSION_NOT_AVAILABLE'] . adm_back_link($this->u_action), E_USER_WARNING);
 156                  }
 157   
 158                  $extension = $phpbb_extension_manager->get_extension($ext_name);
 159                  if (!$extension->is_enableable())
 160                  {
 161                      trigger_error($user->lang['EXTENSION_NOT_ENABLEABLE'] . adm_back_link($this->u_action), E_USER_WARNING);
 162                  }
 163   
 164                  if ($phpbb_extension_manager->is_enabled($ext_name))
 165                  {
 166                      redirect($this->u_action);
 167                  }
 168   
 169                  $this->tpl_name = 'acp_ext_enable';
 170   
 171                  $template->assign_vars(array(
 172                      'PRE'                => true,
 173                      'L_CONFIRM_MESSAGE'    => $this->user->lang('EXTENSION_ENABLE_CONFIRM', $md_manager->get_metadata('display-name')),
 174                      'U_ENABLE'            => $this->u_action . '&amp;action=enable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('enable.' . $ext_name),
 175                  ));
 176              break;
 177   
 178              case 'enable':
 179                  if (!$md_manager->validate_dir())
 180                  {
 181                      trigger_error($user->lang['EXTENSION_DIR_INVALID'] . adm_back_link($this->u_action), E_USER_WARNING);
 182                  }
 183   
 184                  if (!$md_manager->validate_enable())
 185                  {
 186                      trigger_error($user->lang['EXTENSION_NOT_AVAILABLE'] . adm_back_link($this->u_action), E_USER_WARNING);
 187                  }
 188   
 189                  $extension = $phpbb_extension_manager->get_extension($ext_name);
 190                  if (!$extension->is_enableable())
 191                  {
 192                      trigger_error($user->lang['EXTENSION_NOT_ENABLEABLE'] . adm_back_link($this->u_action), E_USER_WARNING);
 193                  }
 194   
 195                  try
 196                  {
 197                      while ($phpbb_extension_manager->enable_step($ext_name))
 198                      {
 199                          // Are we approaching the time limit? If so we want to pause the update and continue after refreshing
 200                          if ((time() - $start_time) >= $safe_time_limit)
 201                          {
 202                              $template->assign_var('S_NEXT_STEP', true);
 203   
 204                              meta_refresh(0, $this->u_action . '&amp;action=enable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('enable.' . $ext_name));
 205                          }
 206                      }
 207                      $this->log->add('admin', $user->data['user_id'], $user->ip, 'LOG_EXT_ENABLE', time(), array($ext_name));
 208                  }
 209                  catch (\phpbb\db\migration\exception $e)
 210                  {
 211                      $template->assign_var('MIGRATOR_ERROR', $e->getLocalisedMessage($user));
 212                  }
 213   
 214                  $this->tpl_name = 'acp_ext_enable';
 215   
 216                  $template->assign_vars(array(
 217                      'U_RETURN'        => $this->u_action . '&amp;action=list',
 218                  ));
 219              break;
 220   
 221              case 'disable_pre':
 222                  if (!$phpbb_extension_manager->is_enabled($ext_name))
 223                  {
 224                      redirect($this->u_action);
 225                  }
 226   
 227                  $this->tpl_name = 'acp_ext_disable';
 228   
 229                  $template->assign_vars(array(
 230                      'PRE'                => true,
 231                      'L_CONFIRM_MESSAGE'    => $this->user->lang('EXTENSION_DISABLE_CONFIRM', $md_manager->get_metadata('display-name')),
 232                      'U_DISABLE'            => $this->u_action . '&amp;action=disable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('disable.' . $ext_name),
 233                  ));
 234              break;
 235   
 236              case 'disable':
 237                  if (!$phpbb_extension_manager->is_enabled($ext_name))
 238                  {
 239                      redirect($this->u_action);
 240                  }
 241   
 242                  while ($phpbb_extension_manager->disable_step($ext_name))
 243                  {
 244                      // Are we approaching the time limit? If so we want to pause the update and continue after refreshing
 245                      if ((time() - $start_time) >= $safe_time_limit)
 246                      {
 247                          $template->assign_var('S_NEXT_STEP', true);
 248   
 249                          meta_refresh(0, $this->u_action . '&amp;action=disable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('disable.' . $ext_name));
 250                      }
 251                  }
 252                  $this->log->add('admin', $user->data['user_id'], $user->ip, 'LOG_EXT_DISABLE', time(), array($ext_name));
 253   
 254                  $this->tpl_name = 'acp_ext_disable';
 255   
 256                  $template->assign_vars(array(
 257                      'U_RETURN'    => $this->u_action . '&amp;action=list',
 258                  ));
 259              break;
 260   
 261              case 'delete_data_pre':
 262                  if ($phpbb_extension_manager->is_enabled($ext_name))
 263                  {
 264                      redirect($this->u_action);
 265                  }
 266                  $this->tpl_name = 'acp_ext_delete_data';
 267   
 268                  $template->assign_vars(array(
 269                      'PRE'                => true,
 270                      'L_CONFIRM_MESSAGE'    => $this->user->lang('EXTENSION_DELETE_DATA_CONFIRM', $md_manager->get_metadata('display-name')),
 271                      'U_PURGE'            => $this->u_action . '&amp;action=delete_data&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('delete_data.' . $ext_name),
 272                  ));
 273              break;
 274   
 275              case 'delete_data':
 276                  if ($phpbb_extension_manager->is_enabled($ext_name))
 277                  {
 278                      redirect($this->u_action);
 279                  }
 280   
 281                  try
 282                  {
 283                      while ($phpbb_extension_manager->purge_step($ext_name))
 284                      {
 285                          // Are we approaching the time limit? If so we want to pause the update and continue after refreshing
 286                          if ((time() - $start_time) >= $safe_time_limit)
 287                          {
 288                              $template->assign_var('S_NEXT_STEP', true);
 289   
 290                              meta_refresh(0, $this->u_action . '&amp;action=delete_data&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('delete_data.' . $ext_name));
 291                          }
 292                      }
 293                      $this->log->add('admin', $user->data['user_id'], $user->ip, 'LOG_EXT_PURGE', time(), array($ext_name));
 294                  }
 295                  catch (\phpbb\db\migration\exception $e)
 296                  {
 297                      $template->assign_var('MIGRATOR_ERROR', $e->getLocalisedMessage($user));
 298                  }
 299   
 300                  $this->tpl_name = 'acp_ext_delete_data';
 301   
 302                  $template->assign_vars(array(
 303                      'U_RETURN'    => $this->u_action . '&amp;action=list',
 304                  ));
 305              break;
 306   
 307              case 'details':
 308                  // Output it to the template
 309                  $md_manager->output_template_data($template);
 310   
 311                  $meta = $md_manager->get_metadata('all');
 312                  if (isset($meta['extra']['version-check']))
 313                  {
 314                      try
 315                      {
 316                          $updates_available = $phpbb_extension_manager->version_check($md_manager, $request->variable('versioncheck_force', false), $this->config['extension_force_unstable'] ? 'unstable' : null);
 317   
 318                          $template->assign_vars(array(
 319                              'S_UP_TO_DATE' => empty($updates_available),
 320                              'UP_TO_DATE_MSG' => $this->user->lang(empty($updates_available) ? 'UP_TO_DATE' : 'NOT_UP_TO_DATE', $md_manager->get_metadata('display-name')),
 321                          ));
 322   
 323                          foreach ($updates_available as $branch => $version_data)
 324                          {
 325                              $template->assign_block_vars('updates_available', $version_data);
 326                          }
 327                      }
 328                      catch (exception_interface $e)
 329                      {
 330                          $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
 331   
 332                          $template->assign_vars(array(
 333                              'S_VERSIONCHECK_FAIL' => true,
 334                              'VERSIONCHECK_FAIL_REASON' => ($e->getMessage() !== 'VERSIONCHECK_FAIL') ? $message : '',
 335                          ));
 336                      }
 337                      $template->assign_var('S_VERSIONCHECK', true);
 338                  }
 339                  else
 340                  {
 341                      $template->assign_var('S_VERSIONCHECK', false);
 342                  }
 343   
 344                  $template->assign_vars(array(
 345                      'U_BACK'                => $this->u_action . '&amp;action=list',
 346                      'U_VERSIONCHECK_FORCE'    => $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name')),
 347                  ));
 348   
 349                  $this->tpl_name = 'acp_ext_details';
 350              break;
 351          }
 352      }
 353   
 354      /**
 355      * Lists all the enabled extensions and dumps to the template
 356      *
 357      * @param  $phpbb_extension_manager     An instance of the extension manager
 358      * @return null
 359      */
 360      public function list_enabled_exts(\phpbb\extension\manager $phpbb_extension_manager)
 361      {
 362          $enabled_extension_meta_data = array();
 363   
 364          foreach ($phpbb_extension_manager->all_enabled() as $name => $location)
 365          {
 366              $md_manager = $phpbb_extension_manager->create_extension_metadata_manager($name);
 367   
 368              try
 369              {
 370                  $meta = $md_manager->get_metadata('all');
 371                  $enabled_extension_meta_data[$name] = array(
 372                      'META_DISPLAY_NAME' => $md_manager->get_metadata('display-name'),
 373                      'META_VERSION' => $meta['version'],
 374                  );
 375   
 376                  if (isset($meta['extra']['version-check']))
 377                  {
 378                      try
 379                      {
 380                          $force_update = $this->request->variable('versioncheck_force', false);
 381                          $updates = $phpbb_extension_manager->version_check($md_manager, $force_update, !$force_update);
 382   
 383                          $enabled_extension_meta_data[$name]['S_UP_TO_DATE'] = empty($updates);
 384                          $enabled_extension_meta_data[$name]['S_VERSIONCHECK'] = true;
 385                          $enabled_extension_meta_data[$name]['U_VERSIONCHECK_FORCE'] = $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name'));
 386                      }
 387                      catch (exception_interface $e)
 388                      {
 389                          // Ignore exceptions due to the version check
 390                      }
 391                  }
 392                  else
 393                  {
 394                      $enabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 395                  }
 396              }
 397              catch (exception_interface $e)
 398              {
 399                  $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
 400                  $this->template->assign_block_vars('disabled', array(
 401                      'META_DISPLAY_NAME'        => $this->user->lang('EXTENSION_INVALID_LIST', $name, $message),
 402                      'S_VERSIONCHECK'        => false,
 403                  ));
 404              }
 405              catch (\RuntimeException $e)
 406              {
 407                  $enabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 408              }
 409          }
 410   
 411          uasort($enabled_extension_meta_data, array($this, 'sort_extension_meta_data_table'));
 412   
 413          foreach ($enabled_extension_meta_data as $name => $block_vars)
 414          {
 415              $block_vars['NAME'] = $name;
 416              $block_vars['U_DETAILS'] = $this->u_action . '&amp;action=details&amp;ext_name=' . urlencode($name);
 417   
 418              $this->template->assign_block_vars('enabled', $block_vars);
 419   
 420              $this->output_actions('enabled', array(
 421                  'DISABLE'        => $this->u_action . '&amp;action=disable_pre&amp;ext_name=' . urlencode($name),
 422              ));
 423          }
 424      }
 425   
 426      /**
 427      * Lists all the disabled extensions and dumps to the template
 428      *
 429      * @param  $phpbb_extension_manager     An instance of the extension manager
 430      * @return null
 431      */
 432      public function list_disabled_exts(\phpbb\extension\manager $phpbb_extension_manager)
 433      {
 434          $disabled_extension_meta_data = array();
 435   
 436          foreach ($phpbb_extension_manager->all_disabled() as $name => $location)
 437          {
 438              $md_manager = $phpbb_extension_manager->create_extension_metadata_manager($name);
 439   
 440              try
 441              {
 442                  $meta = $md_manager->get_metadata('all');
 443                  $disabled_extension_meta_data[$name] = array(
 444                      'META_DISPLAY_NAME' => $md_manager->get_metadata('display-name'),
 445                      'META_VERSION' => $meta['version'],
 446                  );
 447   
 448                  if (isset($meta['extra']['version-check']))
 449                  {
 450                      $force_update = $this->request->variable('versioncheck_force', false);
 451                      $updates = $phpbb_extension_manager->version_check($md_manager, $force_update, !$force_update);
 452   
 453                      $disabled_extension_meta_data[$name]['S_UP_TO_DATE'] = empty($updates);
 454                      $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = true;
 455                      $disabled_extension_meta_data[$name]['U_VERSIONCHECK_FORCE'] = $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name'));
 456                  }
 457                  else
 458                  {
 459                      $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 460                  }
 461              }
 462              catch (version_check_exception $e)
 463              {
 464                  $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 465              }
 466              catch (exception_interface $e)
 467              {
 468                  $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
 469                  $this->template->assign_block_vars('disabled', array(
 470                      'META_DISPLAY_NAME'        => $this->user->lang('EXTENSION_INVALID_LIST', $name, $message),
 471                      'S_VERSIONCHECK'        => false,
 472                  ));
 473              }
 474              catch (\RuntimeException $e)
 475              {
 476                  $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 477              }
 478          }
 479   
 480          uasort($disabled_extension_meta_data, array($this, 'sort_extension_meta_data_table'));
 481   
 482          foreach ($disabled_extension_meta_data as $name => $block_vars)
 483          {
 484              $block_vars['NAME'] = $name;
 485              $block_vars['U_DETAILS'] = $this->u_action . '&amp;action=details&amp;ext_name=' . urlencode($name);
 486   
 487              $this->template->assign_block_vars('disabled', $block_vars);
 488   
 489              $this->output_actions('disabled', array(
 490                  'ENABLE'        => $this->u_action . '&amp;action=enable_pre&amp;ext_name=' . urlencode($name),
 491                  'DELETE_DATA'    => $this->u_action . '&amp;action=delete_data_pre&amp;ext_name=' . urlencode($name),
 492              ));
 493          }
 494      }
 495   
 496      /**
 497      * Lists all the available extensions and dumps to the template
 498      *
 499      * @param  $phpbb_extension_manager     An instance of the extension manager
 500      * @return null
 501      */
 502      public function list_available_exts(\phpbb\extension\manager $phpbb_extension_manager)
 503      {
 504          $uninstalled = array_diff_key($phpbb_extension_manager->all_available(), $phpbb_extension_manager->all_configured());
 505   
 506          $available_extension_meta_data = array();
 507   
 508          foreach ($uninstalled as $name => $location)
 509          {
 510              $md_manager = $phpbb_extension_manager->create_extension_metadata_manager($name);
 511   
 512              try
 513              {
 514                  $meta = $md_manager->get_metadata('all');
 515                  $available_extension_meta_data[$name] = array(
 516                      'META_DISPLAY_NAME' => $md_manager->get_metadata('display-name'),
 517                      'META_VERSION' => $meta['version'],
 518                  );
 519   
 520                  if (isset($meta['extra']['version-check']))
 521                  {
 522                      $force_update = $this->request->variable('versioncheck_force', false);
 523                      $updates = $phpbb_extension_manager->version_check($md_manager, $force_update, !$force_update);
 524   
 525                      $available_extension_meta_data[$name]['S_UP_TO_DATE'] = empty($updates);
 526                      $available_extension_meta_data[$name]['S_VERSIONCHECK'] = true;
 527                      $available_extension_meta_data[$name]['U_VERSIONCHECK_FORCE'] = $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name'));
 528                  }
 529                  else
 530                  {
 531                      $available_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 532                  }
 533              }
 534              catch (version_check_exception $e)
 535              {
 536                  $available_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 537              }
 538              catch (exception_interface $e)
 539              {
 540                  $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
 541                  $this->template->assign_block_vars('disabled', array(
 542                      'META_DISPLAY_NAME'        => $this->user->lang('EXTENSION_INVALID_LIST', $name, $message),
 543                      'S_VERSIONCHECK'        => false,
 544                  ));
 545              }
 546          }
 547   
 548          uasort($available_extension_meta_data, array($this, 'sort_extension_meta_data_table'));
 549   
 550          foreach ($available_extension_meta_data as $name => $block_vars)
 551          {
 552              $block_vars['NAME'] = $name;
 553              $block_vars['U_DETAILS'] = $this->u_action . '&amp;action=details&amp;ext_name=' . urlencode($name);
 554   
 555              $this->template->assign_block_vars('disabled', $block_vars);
 556   
 557              $this->output_actions('disabled', array(
 558                  'ENABLE'        => $this->u_action . '&amp;action=enable_pre&amp;ext_name=' . urlencode($name),
 559              ));
 560          }
 561      }
 562   
 563      /**
 564      * Output actions to a block
 565      *
 566      * @param string $block
 567      * @param array $actions
 568      */
 569      private function output_actions($block, $actions)
 570      {
 571          foreach ($actions as $lang => $url)
 572          {
 573              $this->template->assign_block_vars($block . '.actions', array(
 574                  'L_ACTION'            => $this->user->lang('EXTENSION_' . $lang),
 575                  'L_ACTION_EXPLAIN'    => (isset($this->user->lang['EXTENSION_' . $lang . '_EXPLAIN'])) ? $this->user->lang('EXTENSION_' . $lang . '_EXPLAIN') : '',
 576                  'U_ACTION'            => $url,
 577              ));
 578          }
 579      }
 580   
 581      /**
 582      * Sort helper for the table containing the metadata about the extensions.
 583      */
 584      protected function sort_extension_meta_data_table($val1, $val2)
 585      {
 586          return strnatcasecmp($val1['META_DISPLAY_NAME'], $val2['META_DISPLAY_NAME']);
 587      }
 588  }
 589   

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acp_extensions.php


 001  <?php
 002  /**
 003  *
 004  * This file is part of the phpBB Forum Software package.
 005  *
 006  * @copyright (c) phpBB Limited <https://www.phpbb.com>
 007  * @license GNU General Public License, version 2 (GPL-2.0)
 008  *
 009  * For full copyright and license information, please see
 010  * the docs/CREDITS.txt file.
 011  *
 012  */
 013   
 014  use phpbb\exception\exception_interface;
 015  use phpbb\exception\version_check_exception;
 016   
 017  /**
 018  * @ignore
 019  */
 020  if (!defined('IN_PHPBB'))
 021  {
 022      exit;
 023  }
 024   
 025  class acp_extensions
 026  {
 027      var $u_action;
 028   
 029      private $db;
 030      private $config;
 031      private $template;
 032      private $user;
 033      private $cache;
 034      private $log;
 035      private $request;
 036   
 037      function main()
 038      {
 039          // Start the page
 040          global $config, $user, $template, $request, $phpbb_extension_manager, $db, $phpbb_root_path, $phpbb_log, $cache, $phpbb_dispatcher;
 041   
 042          $this->db = $db;
 043          $this->config = $config;
 044          $this->template = $template;
 045          $this->user = $user;
 046          $this->cache = $cache;
 047          $this->request = $request;
 048          $this->log = $phpbb_log;
 049          $this->phpbb_dispatcher = $phpbb_dispatcher;
 050   
 051          $user->add_lang(array('install', 'acp/extensions', 'migrator'));
 052   
 053          $this->page_title = 'ACP_EXTENSIONS';
 054   
 055          $action = $request->variable('action', 'list');
 056          $ext_name = $request->variable('ext_name', '');
 057   
 058          // What is a safe limit of execution time? Half the max execution time should be safe.
 059          $safe_time_limit = (ini_get('max_execution_time') / 2);
 060          $start_time = time();
 061   
 062          /**
 063          * Event to run a specific action on extension
 064          *
 065          * @event core.acp_extensions_run_action
 066          * @var    string    action            Action to run
 067          * @var    string    u_action        Url we are at
 068          * @var    string    ext_name        Extension name from request
 069          * @var    int        safe_time_limit    Safe limit of execution time
 070          * @var    int        start_time        Start time
 071          * @since 3.1.11-RC1
 072          */
 073          $u_action = $this->u_action;
 074          $vars = array('action', 'u_action', 'ext_name', 'safe_time_limit', 'start_time');
 075          extract($this->phpbb_dispatcher->trigger_event('core.acp_extensions_run_action', compact($vars)));
 076   
 077          // Cancel action
 078          if ($request->is_set_post('cancel'))
 079          {
 080              $action = 'list';
 081              $ext_name = '';
 082          }
 083   
 084          if (in_array($action, array('enable', 'disable', 'delete_data')) && !check_link_hash($request->variable('hash', ''), $action . '.' . $ext_name))
 085          {
 086              trigger_error('FORM_INVALID', E_USER_WARNING);
 087          }
 088   
 089          // If they've specified an extension, let's load the metadata manager and validate it.
 090          if ($ext_name)
 091          {
 092              $md_manager = new \phpbb\extension\metadata_manager($ext_name, $config, $phpbb_extension_manager, $phpbb_root_path);
 093   
 094              try
 095              {
 096                  $md_manager->get_metadata('all');
 097              }
 098              catch (exception_interface $e)
 099              {
 100                  $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
 101                  trigger_error($message, E_USER_WARNING);
 102              }
 103          }
 104   
 105          // What are we doing?
 106          switch ($action)
 107          {
 108              case 'set_config_version_check_force_unstable':
 109                  $force_unstable = $this->request->variable('force_unstable', false);
 110   
 111                  if ($force_unstable)
 112                  {
 113                      $s_hidden_fields = build_hidden_fields(array(
 114                          'force_unstable'    => $force_unstable,
 115                      ));
 116   
 117                      confirm_box(false, $user->lang('EXTENSION_FORCE_UNSTABLE_CONFIRM'), $s_hidden_fields);
 118                  }
 119                  else
 120                  {
 121                      $config->set('extension_force_unstable', false);
 122                      trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link($this->u_action));
 123                  }
 124                  break;
 125   
 126              case 'list':
 127              default:
 128                  if (confirm_box(true))
 129                  {
 130                      $config->set('extension_force_unstable', true);
 131                      trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link($this->u_action));
 132                  }
 133   
 134                  $this->list_enabled_exts($phpbb_extension_manager);
 135                  $this->list_disabled_exts($phpbb_extension_manager);
 136                  $this->list_available_exts($phpbb_extension_manager);
 137   
 138                  $this->template->assign_vars(array(
 139                      'U_VERSIONCHECK_FORCE'     => $this->u_action . '&amp;action=list&amp;versioncheck_force=1',
 140                      'FORCE_UNSTABLE'        => $config['extension_force_unstable'],
 141                      'U_ACTION'                 => $this->u_action,
 142                  ));
 143   
 144                  $this->tpl_name = 'acp_ext_list';
 145              break;
 146   
 147              case 'enable_pre':
 148                  if (!$md_manager->validate_dir())
 149                  {
 150                      trigger_error($user->lang['EXTENSION_DIR_INVALID'] . adm_back_link($this->u_action), E_USER_WARNING);
 151                  }
 152   
 153                  if (!$md_manager->validate_enable())
 154                  {
 155                      trigger_error($user->lang['EXTENSION_NOT_AVAILABLE'] . adm_back_link($this->u_action), E_USER_WARNING);
 156                  }
 157   
 158                  $extension = $phpbb_extension_manager->get_extension($ext_name);
 159                  if (!$extension->is_enableable())
 160                  {
 161                      trigger_error($user->lang['EXTENSION_NOT_ENABLEABLE'] . adm_back_link($this->u_action), E_USER_WARNING);
 162                  }
 163   
 164                  if ($phpbb_extension_manager->is_enabled($ext_name))
 165                  {
 166                      redirect($this->u_action);
 167                  }
 168   
 169                  $this->tpl_name = 'acp_ext_enable';
 170   
 171                  $template->assign_vars(array(
 172                      'PRE'                => true,
 173                      'L_CONFIRM_MESSAGE'    => $this->user->lang('EXTENSION_ENABLE_CONFIRM', $md_manager->get_metadata('display-name')),
 174                      'U_ENABLE'            => $this->u_action . '&amp;action=enable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('enable.' . $ext_name),
 175                  ));
 176              break;
 177   
 178              case 'enable':
 179                  if (!$md_manager->validate_dir())
 180                  {
 181                      trigger_error($user->lang['EXTENSION_DIR_INVALID'] . adm_back_link($this->u_action), E_USER_WARNING);
 182                  }
 183   
 184                  if (!$md_manager->validate_enable())
 185                  {
 186                      trigger_error($user->lang['EXTENSION_NOT_AVAILABLE'] . adm_back_link($this->u_action), E_USER_WARNING);
 187                  }
 188   
 189                  $extension = $phpbb_extension_manager->get_extension($ext_name);
 190                  if (!$extension->is_enableable())
 191                  {
 192                      trigger_error($user->lang['EXTENSION_NOT_ENABLEABLE'] . adm_back_link($this->u_action), E_USER_WARNING);
 193                  }
 194   
 195                  try
 196                  {
 197                      while ($phpbb_extension_manager->enable_step($ext_name))
 198                      {
 199                          // Are we approaching the time limit? If so we want to pause the update and continue after refreshing
 200                          if ((time() - $start_time) >= $safe_time_limit)
 201                          {
 202                              $template->assign_var('S_NEXT_STEP', true);
 203   
 204                              meta_refresh(0, $this->u_action . '&amp;action=enable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('enable.' . $ext_name));
 205                          }
 206                      }
 207                      $this->log->add('admin', $user->data['user_id'], $user->ip, 'LOG_EXT_ENABLE', time(), array($ext_name));
 208                  }
 209                  catch (\phpbb\db\migration\exception $e)
 210                  {
 211                      $template->assign_var('MIGRATOR_ERROR', $e->getLocalisedMessage($user));
 212                  }
 213   
 214                  $this->tpl_name = 'acp_ext_enable';
 215   
 216                  $template->assign_vars(array(
 217                      'U_RETURN'        => $this->u_action . '&amp;action=list',
 218                  ));
 219              break;
 220   
 221              case 'disable_pre':
 222                  if (!$phpbb_extension_manager->is_enabled($ext_name))
 223                  {
 224                      redirect($this->u_action);
 225                  }
 226   
 227                  $this->tpl_name = 'acp_ext_disable';
 228   
 229                  $template->assign_vars(array(
 230                      'PRE'                => true,
 231                      'L_CONFIRM_MESSAGE'    => $this->user->lang('EXTENSION_DISABLE_CONFIRM', $md_manager->get_metadata('display-name')),
 232                      'U_DISABLE'            => $this->u_action . '&amp;action=disable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('disable.' . $ext_name),
 233                  ));
 234              break;
 235   
 236              case 'disable':
 237                  if (!$phpbb_extension_manager->is_enabled($ext_name))
 238                  {
 239                      redirect($this->u_action);
 240                  }
 241   
 242                  while ($phpbb_extension_manager->disable_step($ext_name))
 243                  {
 244                      // Are we approaching the time limit? If so we want to pause the update and continue after refreshing
 245                      if ((time() - $start_time) >= $safe_time_limit)
 246                      {
 247                          $template->assign_var('S_NEXT_STEP', true);
 248   
 249                          meta_refresh(0, $this->u_action . '&amp;action=disable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('disable.' . $ext_name));
 250                      }
 251                  }
 252                  $this->log->add('admin', $user->data['user_id'], $user->ip, 'LOG_EXT_DISABLE', time(), array($ext_name));
 253   
 254                  $this->tpl_name = 'acp_ext_disable';
 255   
 256                  $template->assign_vars(array(
 257                      'U_RETURN'    => $this->u_action . '&amp;action=list',
 258                  ));
 259              break;
 260   
 261              case 'delete_data_pre':
 262                  if ($phpbb_extension_manager->is_enabled($ext_name))
 263                  {
 264                      redirect($this->u_action);
 265                  }
 266                  $this->tpl_name = 'acp_ext_delete_data';
 267   
 268                  $template->assign_vars(array(
 269                      'PRE'                => true,
 270                      'L_CONFIRM_MESSAGE'    => $this->user->lang('EXTENSION_DELETE_DATA_CONFIRM', $md_manager->get_metadata('display-name')),
 271                      'U_PURGE'            => $this->u_action . '&amp;action=delete_data&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('delete_data.' . $ext_name),
 272                  ));
 273              break;
 274   
 275              case 'delete_data':
 276                  if ($phpbb_extension_manager->is_enabled($ext_name))
 277                  {
 278                      redirect($this->u_action);
 279                  }
 280   
 281                  try
 282                  {
 283                      while ($phpbb_extension_manager->purge_step($ext_name))
 284                      {
 285                          // Are we approaching the time limit? If so we want to pause the update and continue after refreshing
 286                          if ((time() - $start_time) >= $safe_time_limit)
 287                          {
 288                              $template->assign_var('S_NEXT_STEP', true);
 289   
 290                              meta_refresh(0, $this->u_action . '&amp;action=delete_data&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('delete_data.' . $ext_name));
 291                          }
 292                      }
 293                      $this->log->add('admin', $user->data['user_id'], $user->ip, 'LOG_EXT_PURGE', time(), array($ext_name));
 294                  }
 295                  catch (\phpbb\db\migration\exception $e)
 296                  {
 297                      $template->assign_var('MIGRATOR_ERROR', $e->getLocalisedMessage($user));
 298                  }
 299   
 300                  $this->tpl_name = 'acp_ext_delete_data';
 301   
 302                  $template->assign_vars(array(
 303                      'U_RETURN'    => $this->u_action . '&amp;action=list',
 304                  ));
 305              break;
 306   
 307              case 'details':
 308                  // Output it to the template
 309                  $md_manager->output_template_data($template);
 310   
 311                  $meta = $md_manager->get_metadata('all');
 312                  if (isset($meta['extra']['version-check']))
 313                  {
 314                      try
 315                      {
 316                          $updates_available = $phpbb_extension_manager->version_check($md_manager, $request->variable('versioncheck_force', false), $this->config['extension_force_unstable'] ? 'unstable' : null);
 317   
 318                          $template->assign_vars(array(
 319                              'S_UP_TO_DATE' => empty($updates_available),
 320                              'UP_TO_DATE_MSG' => $this->user->lang(empty($updates_available) ? 'UP_TO_DATE' : 'NOT_UP_TO_DATE', $md_manager->get_metadata('display-name')),
 321                          ));
 322   
 323                          foreach ($updates_available as $branch => $version_data)
 324                          {
 325                              $template->assign_block_vars('updates_available', $version_data);
 326                          }
 327                      }
 328                      catch (exception_interface $e)
 329                      {
 330                          $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
 331   
 332                          $template->assign_vars(array(
 333                              'S_VERSIONCHECK_FAIL' => true,
 334                              'VERSIONCHECK_FAIL_REASON' => ($e->getMessage() !== 'VERSIONCHECK_FAIL') ? $message : '',
 335                          ));
 336                      }
 337                      $template->assign_var('S_VERSIONCHECK', true);
 338                  }
 339                  else
 340                  {
 341                      $template->assign_var('S_VERSIONCHECK', false);
 342                  }
 343   
 344                  $template->assign_vars(array(
 345                      'U_BACK'                => $this->u_action . '&amp;action=list',
 346                      'U_VERSIONCHECK_FORCE'    => $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name')),
 347                  ));
 348   
 349                  $this->tpl_name = 'acp_ext_details';
 350              break;
 351          }
 352      }
 353   
 354      /**
 355      * Lists all the enabled extensions and dumps to the template
 356      *
 357      * @param  $phpbb_extension_manager     An instance of the extension manager
 358      * @return null
 359      */
 360      public function list_enabled_exts(\phpbb\extension\manager $phpbb_extension_manager)
 361      {
 362          $enabled_extension_meta_data = array();
 363   
 364          foreach ($phpbb_extension_manager->all_enabled() as $name => $location)
 365          {
 366              $md_manager = $phpbb_extension_manager->create_extension_metadata_manager($name);
 367   
 368              try
 369              {
 370                  $meta = $md_manager->get_metadata('all');
 371                  $enabled_extension_meta_data[$name] = array(
 372                      'META_DISPLAY_NAME' => $md_manager->get_metadata('display-name'),
 373                      'META_VERSION' => $meta['version'],
 374                  );
 375   
 376                  if (isset($meta['extra']['version-check']))
 377                  {
 378                      try
 379                      {
 380                          $force_update = $this->request->variable('versioncheck_force', false);
 381                          $updates = $phpbb_extension_manager->version_check($md_manager, $force_update, !$force_update);
 382   
 383                          $enabled_extension_meta_data[$name]['S_UP_TO_DATE'] = empty($updates);
 384                          $enabled_extension_meta_data[$name]['S_VERSIONCHECK'] = true;
 385                          $enabled_extension_meta_data[$name]['U_VERSIONCHECK_FORCE'] = $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name'));
 386                      }
 387                      catch (exception_interface $e)
 388                      {
 389                          // Ignore exceptions due to the version check
 390                      }
 391                  }
 392                  else
 393                  {
 394                      $enabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 395                  }
 396              }
 397              catch (exception_interface $e)
 398              {
 399                  $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
 400                  $this->template->assign_block_vars('disabled', array(
 401                      'META_DISPLAY_NAME'        => $this->user->lang('EXTENSION_INVALID_LIST', $name, $message),
 402                      'S_VERSIONCHECK'        => false,
 403                  ));
 404              }
 405              catch (\RuntimeException $e)
 406              {
 407                  $enabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 408              }
 409          }
 410   
 411          uasort($enabled_extension_meta_data, array($this, 'sort_extension_meta_data_table'));
 412   
 413          foreach ($enabled_extension_meta_data as $name => $block_vars)
 414          {
 415              $block_vars['NAME'] = $name;
 416              $block_vars['U_DETAILS'] = $this->u_action . '&amp;action=details&amp;ext_name=' . urlencode($name);
 417   
 418              $this->template->assign_block_vars('enabled', $block_vars);
 419   
 420              $this->output_actions('enabled', array(
 421                  'DISABLE'        => $this->u_action . '&amp;action=disable_pre&amp;ext_name=' . urlencode($name),
 422              ));
 423          }
 424      }
 425   
 426      /**
 427      * Lists all the disabled extensions and dumps to the template
 428      *
 429      * @param  $phpbb_extension_manager     An instance of the extension manager
 430      * @return null
 431      */
 432      public function list_disabled_exts(\phpbb\extension\manager $phpbb_extension_manager)
 433      {
 434          $disabled_extension_meta_data = array();
 435   
 436          foreach ($phpbb_extension_manager->all_disabled() as $name => $location)
 437          {
 438              $md_manager = $phpbb_extension_manager->create_extension_metadata_manager($name);
 439   
 440              try
 441              {
 442                  $meta = $md_manager->get_metadata('all');
 443                  $disabled_extension_meta_data[$name] = array(
 444                      'META_DISPLAY_NAME' => $md_manager->get_metadata('display-name'),
 445                      'META_VERSION' => $meta['version'],
 446                  );
 447   
 448                  if (isset($meta['extra']['version-check']))
 449                  {
 450                      $force_update = $this->request->variable('versioncheck_force', false);
 451                      $updates = $phpbb_extension_manager->version_check($md_manager, $force_update, !$force_update);
 452   
 453                      $disabled_extension_meta_data[$name]['S_UP_TO_DATE'] = empty($updates);
 454                      $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = true;
 455                      $disabled_extension_meta_data[$name]['U_VERSIONCHECK_FORCE'] = $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name'));
 456                  }
 457                  else
 458                  {
 459                      $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 460                  }
 461              }
 462              catch (version_check_exception $e)
 463              {
 464                  $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 465              }
 466              catch (exception_interface $e)
 467              {
 468                  $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
 469                  $this->template->assign_block_vars('disabled', array(
 470                      'META_DISPLAY_NAME'        => $this->user->lang('EXTENSION_INVALID_LIST', $name, $message),
 471                      'S_VERSIONCHECK'        => false,
 472                  ));
 473              }
 474              catch (\RuntimeException $e)
 475              {
 476                  $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 477              }
 478          }
 479   
 480          uasort($disabled_extension_meta_data, array($this, 'sort_extension_meta_data_table'));
 481   
 482          foreach ($disabled_extension_meta_data as $name => $block_vars)
 483          {
 484              $block_vars['NAME'] = $name;
 485              $block_vars['U_DETAILS'] = $this->u_action . '&amp;action=details&amp;ext_name=' . urlencode($name);
 486   
 487              $this->template->assign_block_vars('disabled', $block_vars);
 488   
 489              $this->output_actions('disabled', array(
 490                  'ENABLE'        => $this->u_action . '&amp;action=enable_pre&amp;ext_name=' . urlencode($name),
 491                  'DELETE_DATA'    => $this->u_action . '&amp;action=delete_data_pre&amp;ext_name=' . urlencode($name),
 492              ));
 493          }
 494      }
 495   
 496      /**
 497      * Lists all the available extensions and dumps to the template
 498      *
 499      * @param  $phpbb_extension_manager     An instance of the extension manager
 500      * @return null
 501      */
 502      public function list_available_exts(\phpbb\extension\manager $phpbb_extension_manager)
 503      {
 504          $uninstalled = array_diff_key($phpbb_extension_manager->all_available(), $phpbb_extension_manager->all_configured());
 505   
 506          $available_extension_meta_data = array();
 507   
 508          foreach ($uninstalled as $name => $location)
 509          {
 510              $md_manager = $phpbb_extension_manager->create_extension_metadata_manager($name);
 511   
 512              try
 513              {
 514                  $meta = $md_manager->get_metadata('all');
 515                  $available_extension_meta_data[$name] = array(
 516                      'META_DISPLAY_NAME' => $md_manager->get_metadata('display-name'),
 517                      'META_VERSION' => $meta['version'],
 518                  );
 519   
 520                  if (isset($meta['extra']['version-check']))
 521                  {
 522                      $force_update = $this->request->variable('versioncheck_force', false);
 523                      $updates = $phpbb_extension_manager->version_check($md_manager, $force_update, !$force_update);
 524   
 525                      $available_extension_meta_data[$name]['S_UP_TO_DATE'] = empty($updates);
 526                      $available_extension_meta_data[$name]['S_VERSIONCHECK'] = true;
 527                      $available_extension_meta_data[$name]['U_VERSIONCHECK_FORCE'] = $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name'));
 528                  }
 529                  else
 530                  {
 531                      $available_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 532                  }
 533              }
 534              catch (version_check_exception $e)
 535              {
 536                  $available_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
 537              }
 538              catch (exception_interface $e)
 539              {
 540                  $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
 541                  $this->template->assign_block_vars('disabled', array(
 542                      'META_DISPLAY_NAME'        => $this->user->lang('EXTENSION_INVALID_LIST', $name, $message),
 543                      'S_VERSIONCHECK'        => false,
 544                  ));
 545              }
 546          }
 547   
 548          uasort($available_extension_meta_data, array($this, 'sort_extension_meta_data_table'));
 549   
 550          foreach ($available_extension_meta_data as $name => $block_vars)
 551          {
 552              $block_vars['NAME'] = $name;
 553              $block_vars['U_DETAILS'] = $this->u_action . '&amp;action=details&amp;ext_name=' . urlencode($name);
 554   
 555              $this->template->assign_block_vars('disabled', $block_vars);
 556   
 557              $this->output_actions('disabled', array(
 558                  'ENABLE'        => $this->u_action . '&amp;action=enable_pre&amp;ext_name=' . urlencode($name),
 559              ));
 560          }
 561      }
 562   
 563      /**
 564      * Output actions to a block
 565      *
 566      * @param string $block
 567      * @param array $actions
 568      */
 569      private function output_actions($block, $actions)
 570      {
 571          foreach ($actions as $lang => $url)
 572          {
 573              $this->template->assign_block_vars($block . '.actions', array(
 574                  'L_ACTION'            => $this->user->lang('EXTENSION_' . $lang),
 575                  'L_ACTION_EXPLAIN'    => (isset($this->user->lang['EXTENSION_' . $lang . '_EXPLAIN'])) ? $this->user->lang('EXTENSION_' . $lang . '_EXPLAIN') : '',
 576                  'U_ACTION'            => $url,
 577              ));
 578          }
 579      }
 580   
 581      /**
 582      * Sort helper for the table containing the metadata about the extensions.
 583      */
 584      protected function sort_extension_meta_data_table($val1, $val2)
 585      {
 586          return strnatcasecmp($val1['META_DISPLAY_NAME'], $val2['META_DISPLAY_NAME']);
 587      }
 588  }
 589   

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