diff options
Diffstat (limited to 'upgrade.php')
| -rw-r--r-- | upgrade.php | 84 |
1 files changed, 57 insertions, 27 deletions
diff --git a/upgrade.php b/upgrade.php index 42b7f794e..d07b2a1da 100644 --- a/upgrade.php +++ b/upgrade.php @@ -1,37 +1,67 @@ <?php /** - * Upgrade file + * Elgg upgrade script. * - * @package Lorea - * @subpackage GroupAlias + * This script triggers any necessary upgrades. If the site has been upgraded + * to the most recent version of the code, no upgrades are run and the caches + * are flushed. If you would prefer that this script is not accessible to others + * after an upgrade, you can delete it. Future versions of Elgg will include a + * new version of the script. Deleting the script is not a requirement and + * leaving it behind does not affect the security of the site. * - * Copyright 2011-2013 Lorea Faeries <federation@lorea.org> + * Upgrades use a table {db_prefix}upgrade_lock as a mutex to prevent concurrent upgrades. * - * This file is part of the GroupAlias plugin for Elgg. - * - * GroupAlias is free software: you can redistribute it and/or - * modify it under the terms of the GNU Affero General Public License - * as published by the Free Software Foundation, either version 3 of - * the License, or (at your option) any later version. - * - * GroupAlias 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 - * Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public - * License along with this program. If not, see - * <http://www.gnu.org/licenses/>. + * @package Elgg.Core + * @subpackage Upgrade */ -require_once(dirname(dirname(dirname(__FILE__))) . "/engine/start.php"); +// we want to know if an error occurs +ini_set('display_errors', 1); + +define('UPGRADING', 'upgrading'); +require_once(dirname(__FILE__) . "/engine/start.php"); + +if (get_input('upgrade') == 'upgrade') { + // prevent someone from running the upgrade script in parallel (see #4643) + if (!_elgg_upgrade_lock()) { + register_error(elgg_echo('upgrade:locked')); + forward(); + } + + // disable the system log for upgrades to avoid exceptions when the schema changes. + elgg_unregister_event_handler('log', 'systemlog', 'system_log_default_logger'); + elgg_unregister_event_handler('all', 'all', 'system_log_listener'); + + if (elgg_get_unprocessed_upgrades()) { + version_upgrade(); + } -admin_gatekeeper(); -set_time_limit(0); + // turn off time limit so plugins that have upgrade scripts aren't interrupted + set_time_limit(0); + elgg_trigger_event('upgrade', 'system', null); + elgg_invalidate_simplecache(); + elgg_reset_system_cache(); + + _elgg_upgrade_unlock(); + +} else { + // if upgrading from < 1.8.0, check for the core view 'welcome' and bail if it's found. + // see https://github.com/elgg/elgg/issues/3064 + // we're not checking the view itself because it's likely themes will override this view. + // we're only concerned with core files. + $welcome = dirname(__FILE__) . '/views/default/welcome.php'; + if (file_exists($welcome)) { + elgg_set_viewtype('failsafe'); + // can't have pretty messages because we don't know the state of the views. + $content = elgg_echo('upgrade:unable_to_upgrade_info'); + $title = elgg_echo('upgrade:unable_to_upgrade'); + + echo elgg_view_page($title, $content); + exit; + } -echo "upgrade group alias"; -$previous_access = elgg_set_ignore_access(true); -group_alias_run_upgrades(); -elgg_set_ignore_access($previous_access); + echo elgg_view_page(elgg_echo('upgrading'), '', 'upgrade'); + exit; +} -echo "DONE"; +forward(); |