4d1327f80d
Follows-up If577c5c89bb3b3e5766 (e1e5beb43e) which added a top-level
try-catch for the first time in over a decade, but unlike our other
top-level handlers in MediaWiki.php, DeferredUpdates, and JobRunner,
it did not actually handle the error, and yet did let execution
continue, which is at best confusing, but at worst may result in
data corruption.
Bug: T305730
Change-Id: Ibaa6b08e73fbf4846cf79614f28aae1d834c17f0
140 lines
4.5 KiB
PHP
140 lines
4.5 KiB
PHP
<?php
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/**
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* We want to make this whole thing as seamless as possible to the
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* end-user. Unfortunately, we can't do _all_ of the work in the class
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* because A) included files are not in global scope, but in the scope
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* of their caller, and B) MediaWiki has way too many globals. So instead
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* we'll kinda fake it, and do the requires() inline. <3 PHP
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Maintenance
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*/
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use MediaWiki\MainConfigNames;
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use MediaWiki\MediaWikiServices;
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use MediaWiki\Settings\SettingsBuilder;
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if ( !defined( 'RUN_MAINTENANCE_IF_MAIN' ) ) {
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echo "This file must be included after Maintenance.php\n";
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exit( 1 );
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}
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// Wasn't included from the file scope, halt execution (probably wanted the class)
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// If a class is using CommandLineInc (old school maintenance), they definitely
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// cannot be included and will proceed with execution
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// @phan-suppress-next-line PhanSuspiciousValueComparisonInGlobalScope
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if ( !Maintenance::shouldExecute() && $maintClass != CommandLineInc::class ) {
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return;
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}
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// @phan-suppress-next-line PhanImpossibleConditionInGlobalScope
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if ( !$maintClass || !class_exists( $maintClass ) ) {
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echo "\$maintClass is not set or is set to a non-existent class.\n";
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exit( 1 );
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}
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// Define the MediaWiki entrypoint
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define( 'MEDIAWIKI', true );
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$IP = wfDetectInstallPath();
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// Get an object to start us off
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/** @var Maintenance $maintenance */
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$maintenance = new $maintClass();
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// Basic checks and such
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$maintenance->setup();
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// We used to call this variable $self, but it was moved
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// to $maintenance->mSelf. Keep that here for b/c
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$self = $maintenance->getName();
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// Define how settings are loaded (e.g. LocalSettings.php)
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if ( !defined( 'MW_CONFIG_CALLBACK' ) ) {
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$maintenance->loadSettings();
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}
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// Custom setup for Maintenance entry point
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if ( !defined( 'MW_SETUP_CALLBACK' ) ) {
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function wfMaintenanceSetup( SettingsBuilder $settingsBuilder ) {
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global $maintenance;
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$config = $settingsBuilder->getConfig();
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if ( $maintenance->getDbType() === Maintenance::DB_NONE ) {
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$cacheConf = $config->get( MainConfigNames::LocalisationCacheConf );
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if ( $cacheConf['storeClass'] === false
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&& ( $cacheConf['store'] == 'db'
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|| ( $cacheConf['store'] == 'detect'
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&& !$config->get( MainConfigNames::CacheDirectory ) ) )
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) {
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$cacheConf['storeClass'] = LCStoreNull::class;
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$settingsBuilder->putConfigValue( MainConfigNames::LocalisationCacheConf, $cacheConf );
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}
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}
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$maintenance->finalSetup( $settingsBuilder );
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}
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define( 'MW_SETUP_CALLBACK', 'wfMaintenanceSetup' );
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}
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require_once "$IP/includes/Setup.php";
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// Initialize main config instance
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$maintenance->setConfig( MediaWikiServices::getInstance()->getMainConfig() );
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// Double check required extensions are installed
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$maintenance->checkRequiredExtensions();
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if ( $maintenance->getDbType() == Maintenance::DB_NONE ) {
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// Be strict with maintenance tasks that claim to not need a database by
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// disabling the storage backend.
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MediaWikiServices::disableStorageBackend();
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}
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$maintenance->validateParamsAndArgs();
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// Do the work
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try {
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$maintenance->execute();
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} catch ( Exception $ex ) {
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$exReportMessage = '';
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while ( $ex ) {
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$cls = get_class( $ex );
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$exReportMessage .= "$cls from line {$ex->getLine()} of {$ex->getFile()}: {$ex->getMessage()}\n";
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$exReportMessage .= $ex->getTraceAsString() . "\n";
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$ex = $ex->getPrevious();
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}
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// Print the exception to stderr if possible, don't mix it in
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// with stdout output.
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if ( defined( 'STDERR' ) ) {
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fwrite( STDERR, $exReportMessage );
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} else {
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echo $exReportMessage;
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}
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// Exit now because process is in an unsafe state.
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// Also to avoid DBTransactionError (T305730).
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// Do not commit database writes, do not run deferreds, do not pass Go.
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exit( 1 );
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}
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// Potentially debug globals
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$maintenance->globals();
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$maintenance->shutdown();
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