]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - maintenance/update.php
MediaWiki 1.30.2
[autoinstallsdev/mediawiki.git] / maintenance / update.php
old mode 100644 (file)
new mode 100755 (executable)
index e3941a3..52e9017
+#!/usr/bin/env php
 <?php
 /**
  * Run all updaters.
  *
  * This is used when the database schema is modified and we need to apply patches.
- * It is kept compatible with php 4 parsing so that it can give out a meaningful error.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
  *
  * @file
  * @todo document
  * @ingroup Maintenance
  */
 
-if ( !function_exists( 'version_compare' ) || ( version_compare( phpversion(), '5.2.3' ) < 0 ) ) {
-       echo "You are using PHP version " . phpversion() . " but MediaWiki needs PHP 5.2.3 or higher. ABORTING.\n" .
-       "Check if you have a newer php executable with a different name, such as php5.\n";
-       die( 1 );
-}
+require_once __DIR__ . '/Maintenance.php';
 
-$wgUseMasterForMaintenance = true;
-require_once( dirname( __FILE__ ) . '/Maintenance.php' );
+use Wikimedia\Rdbms\IMaintainableDatabase;
 
+/**
+ * Maintenance script to run database schema updates.
+ *
+ * @ingroup Maintenance
+ */
 class UpdateMediaWiki extends Maintenance {
-
        function __construct() {
                parent::__construct();
-               $this->mDescription = "MediaWiki database updater";
+               $this->addDescription( 'MediaWiki database updater' );
                $this->addOption( 'skip-compat-checks', 'Skips compatibility checks, mostly for developers' );
                $this->addOption( 'quick', 'Skip 5 second countdown before starting' );
                $this->addOption( 'doshared', 'Also update shared tables' );
                $this->addOption( 'nopurge', 'Do not purge the objectcache table after updates' );
+               $this->addOption( 'noschema', 'Only do the updates that are not done during schema updates' );
+               $this->addOption(
+                       'schema',
+                       'Output SQL to do the schema updates instead of doing them. Works '
+                               . 'even when $wgAllowSchemaUpdates is false',
+                       false,
+                       true
+               );
+               $this->addOption( 'force', 'Override when $wgAllowSchemaUpdates disables this script' );
+               $this->addOption(
+                       'skip-external-dependencies',
+                       'Skips checking whether external dependencies are up to date, mostly for developers'
+               );
        }
 
        function getDbType() {
-               /* If we used the class constant PHP4 would give a parser error here */
-               return 2 /* Maintenance::DB_ADMIN */;
+               return Maintenance::DB_ADMIN;
        }
 
        function compatChecks() {
-               $test = new PhpXmlBugTester();
-               if ( !$test->ok ) {
+               $minimumPcreVersion = Installer::MINIMUM_PCRE_VERSION;
+
+               list( $pcreVersion ) = explode( ' ', PCRE_VERSION, 2 );
+               if ( version_compare( $pcreVersion, $minimumPcreVersion, '<' ) ) {
                        $this->error(
-                               "Your system has a combination of PHP and libxml2 versions which is buggy\n" .
-                               "and can cause hidden data corruption in MediaWiki and other web apps.\n" .
-                               "Upgrade to PHP 5.2.9 or later and libxml2 2.7.3 or later!\n" .
-                               "ABORTING (see http://bugs.php.net/bug.php?id=45996).\n",
+                               "PCRE $minimumPcreVersion or later is required.\n" .
+                               "Your PHP binary is linked with PCRE $pcreVersion.\n\n" .
+                               "More information:\n" .
+                               "https://www.mediawiki.org/wiki/Manual:Errors_and_symptoms/PCRE\n\n" .
+                               "ABORTING.\n",
                                true );
                }
 
-               $test = new PhpRefCallBugTester;
-               $test->execute();
+               $test = new PhpXmlBugTester();
                if ( !$test->ok ) {
-                       $ver = phpversion();
                        $this->error(
-                               "PHP $ver is not compatible with MediaWiki due to a bug involving\n" .
-                               "reference parameters to __call. Upgrade to PHP 5.3.2 or higher, or \n" .
-                               "downgrade to PHP 5.3.0 to fix this.\n" .
-                               "ABORTING (see http://bugs.php.net/bug.php?id=50394 for details)\n",
+                               "Your system has a combination of PHP and libxml2 versions that is buggy\n" .
+                               "and can cause hidden data corruption in MediaWiki and other web apps.\n" .
+                               "Upgrade to libxml2 2.7.3 or later.\n" .
+                               "ABORTING (see https://bugs.php.net/bug.php?id=45996).\n",
                                true );
                }
        }
 
        function execute() {
-               global $wgVersion, $wgTitle, $wgLang;
+               global $wgVersion, $wgLang, $wgAllowSchemaUpdates;
+
+               if ( !$wgAllowSchemaUpdates
+                       && !( $this->hasOption( 'force' )
+                               || $this->hasOption( 'schema' )
+                               || $this->hasOption( 'noschema' ) )
+               ) {
+                       $this->error( "Do not run update.php on this wiki. If you're seeing this you should\n"
+                               . "probably ask for some help in performing your schema updates or use\n"
+                               . "the --noschema and --schema options to get an SQL file for someone\n"
+                               . "else to inspect and run.\n\n"
+                               . "If you know what you are doing, you can continue with --force\n", true );
+               }
 
-               $wgLang = Language::factory( 'en' );
-               $wgTitle = Title::newFromText( "MediaWiki database updater" );
+               $this->fileHandle = null;
+               if ( substr( $this->getOption( 'schema' ), 0, 2 ) === "--" ) {
+                       $this->error( "The --schema option requires a file as an argument.\n", true );
+               } elseif ( $this->hasOption( 'schema' ) ) {
+                       $file = $this->getOption( 'schema' );
+                       $this->fileHandle = fopen( $file, "w" );
+                       if ( $this->fileHandle === false ) {
+                               $err = error_get_last();
+                               $this->error( "Problem opening the schema file for writing: $file\n\t{$err['message']}", true );
+                       }
+               }
+
+               $lang = Language::factory( 'en' );
+               // Set global language to ensure localised errors are in English (T22633)
+               RequestContext::getMain()->setLanguage( $lang );
+               $wgLang = $lang; // BackCompat
+
+               define( 'MW_UPDATER', true );
 
                $this->output( "MediaWiki {$wgVersion} Updater\n\n" );
 
+               wfWaitForSlaves();
+
                if ( !$this->hasOption( 'skip-compat-checks' ) ) {
                        $this->compatChecks();
                } else {
                        $this->output( "Skipping compatibility checks, proceed at your own risk (Ctrl+C to abort)\n" );
-                       wfCountdown( 5 );
+                       wfCountDown( 5 );
+               }
+
+               // Check external dependencies are up to date
+               if ( !$this->hasOption( 'skip-external-dependencies' ) ) {
+                       $composerLockUpToDate = $this->runChild( 'CheckComposerLockUpToDate' );
+                       $composerLockUpToDate->execute();
+               } else {
+                       $this->output(
+                               "Skipping checking whether external dependencies are up to date, proceed at your own risk\n"
+                       );
                }
 
                # Attempt to connect to the database as a privileged user
                # This will vomit up an error if there are permissions problems
-               $db = wfGetDB( DB_MASTER );
+               $db = $this->getDB( DB_MASTER );
+
+               # Check to see whether the database server meets the minimum requirements
+               /** @var DatabaseInstaller $dbInstallerClass */
+               $dbInstallerClass = Installer::getDBInstallerClass( $db->getType() );
+               $status = $dbInstallerClass::meetsMinimumRequirement( $db->getServerVersion() );
+               if ( !$status->isOK() ) {
+                       // This might output some wikitext like <strong> but it should be comprehensible
+                       $text = $status->getWikiText();
+                       $this->error( $text, 1 );
+               }
 
                $this->output( "Going to run database updates for " . wfWikiID() . "\n" );
+               if ( $db->getType() === 'sqlite' ) {
+                       /** @var IMaintainableDatabase|DatabaseSqlite $db */
+                       $this->output( "Using SQLite file: '{$db->getDbFilePath()}'\n" );
+               }
                $this->output( "Depending on the size of your database this may take a while!\n" );
 
                if ( !$this->hasOption( 'quick' ) ) {
-                       $this->output( "Abort with control-c in the next five seconds (skip this countdown with --quick) ... " );
+                       $this->output( "Abort with control-c in the next five seconds "
+                               . "(skip this countdown with --quick) ... " );
                        wfCountDown( 5 );
                }
 
+               $time1 = microtime( true );
+
+               $badPhpUnit = dirname( __DIR__ ) . '/vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php';
+               if ( file_exists( $badPhpUnit ) ) {
+                       // @codingStandardsIgnoreStart Generic.Files.LineLength.TooLong
+                       // Bad versions of the file are:
+                       // https://raw.githubusercontent.com/sebastianbergmann/phpunit/c820f915bfae34e5a836f94967a2a5ea5ef34f21/src/Util/PHP/eval-stdin.php
+                       // https://raw.githubusercontent.com/sebastianbergmann/phpunit/3aaddb1c5bd9b9b8d070b4cf120e71c36fd08412/src/Util/PHP/eval-stdin.php
+                       // @codingStandardsIgnoreEnd
+                       $md5 = md5_file( $badPhpUnit );
+                       if ( $md5 === '120ac49800671dc383b6f3709c25c099'
+                               || $md5 === '28af792cb38fc9a1b236b91c1aad2876'
+                       ) {
+                               $success = unlink( $badPhpUnit );
+                               if ( $success ) {
+                                       $this->output( "Removed PHPUnit eval-stdin.php to protect against CVE-2017-9841\n" );
+                               } else {
+                                       $this->error( "Unable to remove $badPhpUnit, you should manually. See CVE-2017-9841" );
+                               }
+                       }
+               }
+
                $shared = $this->hasOption( 'doshared' );
 
-               $updates = array('core','extensions');
-               if( !$this->hasOption('nopurge') ) {
-                       $updates[] = 'purge';
+               $updates = [ 'core', 'extensions' ];
+               if ( !$this->hasOption( 'schema' ) ) {
+                       if ( $this->hasOption( 'noschema' ) ) {
+                               $updates[] = 'noschema';
+                       }
+                       $updates[] = 'stats';
                }
 
-               $updater = DatabaseUpdater::newForDb( $db, $shared, $this );
+               $updater = DatabaseUpdater::newForDB( $db, $shared, $this );
                $updater->doUpdates( $updates );
 
-               foreach( $updater->getPostDatabaseUpdateMaintenance() as $maint ) {
+               foreach ( $updater->getPostDatabaseUpdateMaintenance() as $maint ) {
                        $child = $this->runChild( $maint );
+
+                       // LoggedUpdateMaintenance is checking the updatelog itself
+                       $isLoggedUpdate = $child instanceof LoggedUpdateMaintenance;
+
+                       if ( !$isLoggedUpdate && $updater->updateRowExists( $maint ) ) {
+                               continue;
+                       }
+
                        $child->execute();
+                       if ( !$isLoggedUpdate ) {
+                               $updater->insertUpdateRow( $maint );
+                       }
                }
 
-               $this->output( "\nDone.\n" );
+               $updater->setFileAccess();
+               if ( !$this->hasOption( 'nopurge' ) ) {
+                       $updater->purgeCache();
+               }
+
+               $time2 = microtime( true );
+
+               $timeDiff = $lang->formatTimePeriod( $time2 - $time1 );
+               $this->output( "\nDone in $timeDiff.\n" );
        }
 
        function afterFinalSetup() {
@@ -109,15 +235,15 @@ class UpdateMediaWiki extends Maintenance {
 
                # Don't try to access the database
                # This needs to be disabled early since extensions will try to use the l10n
-               # cache from $wgExtensionFunctions (bug 20471)
-               $wgLocalisationCacheConf = array(
+               # cache from $wgExtensionFunctions (T22471)
+               $wgLocalisationCacheConf = [
                        'class' => 'LocalisationCache',
-                       'storeClass' => 'LCStore_Null',
+                       'storeClass' => 'LCStoreNull',
                        'storeDirectory' => false,
                        'manualRecache' => false,
-               );
+               ];
        }
 }
 
 $maintClass = 'UpdateMediaWiki';
-require_once( RUN_MAINTENANCE_IF_MAIN );
+require_once RUN_MAINTENANCE_IF_MAIN;