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- <?php
- /**
- * Elgg upgrade script.
- *
- * 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.
- *
- * Upgrades use a table {db_prefix}upgrade_lock as a mutex to prevent concurrent upgrades.
- *
- * The URL to forward to after upgrades are complete can be specified by setting $_GET['forward']
- * to a relative URL.
- *
- * @package Elgg.Core
- * @subpackage Upgrade
- */
- // we want to know if an error occurs
- ini_set('display_errors', 1);
- define('UPGRADING', 'upgrading');
- require_once(dirname(__FILE__) . "/engine/start.php");
- $site_url = elgg_get_config('url');
- $site_host = parse_url($site_url, PHP_URL_HOST) . '/';
- // turn any full in-site URLs into absolute paths
- $forward_url = get_input('forward', '/admin', false);
- $forward_url = str_replace(array($site_url, $site_host), '/', $forward_url);
- if (strpos($forward_url, '/') !== 0) {
- $forward_url = '/' . $forward_url;
- }
- if (get_input('upgrade') == 'upgrade') {
- $upgrader = new \Elgg\UpgradeService();
- $result = $upgrader->run();
- if ($result['failure'] == true) {
- register_error($result['reason']);
- forward($forward_url);
- }
- } else {
- // test the URL rewrite rules
- if (!class_exists('ElggRewriteTester')) {
- require dirname(__FILE__) . '/install/ElggRewriteTester.php';
- }
- $rewriteTester = new \ElggRewriteTester();
- $url = elgg_get_site_url() . "__testing_rewrite?__testing_rewrite=1";
- if (!$rewriteTester->runRewriteTest($url)) {
- // see if there is a problem accessing the site at all
- // due to ip restrictions for example
- if (!$rewriteTester->runLocalhostAccessTest()) {
- // note: translation may not be available until after upgrade
- $msg = elgg_echo("installation:htaccess:localhost:connectionfailed");
- if ($msg === "installation:htaccess:localhost:connectionfailed") {
- $msg = "Elgg cannot connect to itself to test rewrite rules properly. Check "
- . "that curl is working and there are no IP restrictions preventing "
- . "localhost connections.";
- }
- echo $msg;
- exit;
- }
-
- // note: translation may not be available until after upgrade
- $msg = elgg_echo("installation:htaccess:needs_upgrade");
- if ($msg === "installation:htaccess:needs_upgrade") {
- $msg = "You must update your .htaccess file so that the path is injected "
- . "into the GET parameter __elgg_uri (you can use install/config/htaccess.dist as a guide).";
- }
- echo $msg;
- exit;
- }
- // 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;
- }
- $vars = array(
- 'forward' => $forward_url
- );
- // reset cache to have latest translations available during upgrade
- elgg_reset_system_cache();
-
- echo elgg_view_page(elgg_echo('upgrading'), '', 'upgrade', $vars);
- exit;
- }
- forward($forward_url);
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