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| 1 | <?php |
| 2 | /** |
| 3 | * Take page text out of an XML dump file and perform some operation on it. |
| 4 | * Used as a base class for CompareParsers. |
| 5 | * We implement below the simple task of searching inside a dump. |
| 6 | * |
| 7 | * Copyright © 2011 Platonides |
| 8 | * https://www.mediawiki.org/ |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License along |
| 21 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 22 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 23 | * http://www.gnu.org/copyleft/gpl.html |
| 24 | * |
| 25 | * @file |
| 26 | * @ingroup Maintenance |
| 27 | */ |
| 28 | |
| 29 | use MediaWiki\Content\ContentHandler; |
| 30 | use MediaWiki\MainConfigNames; |
| 31 | use MediaWiki\Permissions\UltimateAuthority; |
| 32 | use MediaWiki\Revision\SlotRecord; |
| 33 | use MediaWiki\Settings\SettingsBuilder; |
| 34 | use MediaWiki\Title\Title; |
| 35 | use MediaWiki\User\User; |
| 36 | |
| 37 | // @codeCoverageIgnoreStart |
| 38 | require_once __DIR__ . '/Maintenance.php'; |
| 39 | // @codeCoverageIgnoreEnd |
| 40 | |
| 41 | /** |
| 42 | * Base class for iterating over a dump. |
| 43 | * |
| 44 | * @ingroup Maintenance |
| 45 | */ |
| 46 | abstract class DumpIterator extends Maintenance { |
| 47 | /** @var int */ |
| 48 | private $count = 0; |
| 49 | /** @var float */ |
| 50 | private $startTime; |
| 51 | /** @var string|null|false */ |
| 52 | private $from; |
| 53 | |
| 54 | public function __construct() { |
| 55 | parent::__construct(); |
| 56 | $this->addDescription( 'Does something with a dump' ); |
| 57 | $this->addOption( 'file', 'File with text to run.', false, true ); |
| 58 | $this->addOption( 'dump', 'XML dump to execute all revisions.', false, true ); |
| 59 | $this->addOption( 'from', 'Article from XML dump to start from.', false, true ); |
| 60 | } |
| 61 | |
| 62 | public function execute() { |
| 63 | if ( !( $this->hasOption( 'file' ) xor $this->hasOption( 'dump' ) ) ) { |
| 64 | $this->fatalError( "You must provide a file or dump" ); |
| 65 | } |
| 66 | |
| 67 | $this->checkOptions(); |
| 68 | |
| 69 | if ( $this->hasOption( 'file' ) ) { |
| 70 | $file = $this->getOption( 'file' ); |
| 71 | $revision = new WikiRevision(); |
| 72 | $text = file_get_contents( $file ); |
| 73 | $title = Title::newFromText( rawurldecode( basename( $file, '.txt' ) ) ); |
| 74 | $revision->setTitle( $title ); |
| 75 | $content = ContentHandler::makeContent( $text, $title ); |
| 76 | $revision->setContent( SlotRecord::MAIN, $content ); |
| 77 | |
| 78 | $this->from = false; |
| 79 | $this->handleRevision( $revision ); |
| 80 | |
| 81 | return; |
| 82 | } |
| 83 | |
| 84 | $this->startTime = microtime( true ); |
| 85 | |
| 86 | if ( $this->getOption( 'dump' ) == '-' ) { |
| 87 | $source = new ImportStreamSource( $this->getStdin() ); |
| 88 | } else { |
| 89 | $this->fatalError( "Sorry, I don't support dump filenames yet. " |
| 90 | . "Use - and provide it on stdin on the meantime." ); |
| 91 | } |
| 92 | |
| 93 | $user = User::newSystemUser( User::MAINTENANCE_SCRIPT_USER, [ 'steal' => true ] ); |
| 94 | |
| 95 | $importer = $this->getServiceContainer() |
| 96 | ->getWikiImporterFactory() |
| 97 | ->getWikiImporter( $source, new UltimateAuthority( $user ) ); |
| 98 | |
| 99 | $importer->setRevisionCallback( |
| 100 | [ $this, 'handleRevision' ] ); |
| 101 | $importer->setNoticeCallback( static function ( $msg, $params ) { |
| 102 | echo wfMessage( $msg, $params )->text() . "\n"; |
| 103 | } ); |
| 104 | |
| 105 | $this->from = $this->getOption( 'from', null ); |
| 106 | $this->count = 0; |
| 107 | $importer->doImport(); |
| 108 | |
| 109 | $this->conclusions(); |
| 110 | |
| 111 | $delta = microtime( true ) - $this->startTime; |
| 112 | $this->error( "Done {$this->count} revisions in " . round( $delta, 2 ) . " seconds " ); |
| 113 | if ( $delta > 0 ) { |
| 114 | $this->error( round( $this->count / $delta, 2 ) . " pages/sec" ); |
| 115 | } |
| 116 | |
| 117 | # Perform the memory_get_peak_usage() when all the other data has been |
| 118 | # output so there's no damage if it dies. It is only available since |
| 119 | # 5.2.0 (since 5.2.1 if you haven't compiled with --enable-memory-limit) |
| 120 | $this->error( "Memory peak usage of " . memory_get_peak_usage() . " bytes\n" ); |
| 121 | } |
| 122 | |
| 123 | public function finalSetup( SettingsBuilder $settingsBuilder ) { |
| 124 | parent::finalSetup( $settingsBuilder ); |
| 125 | |
| 126 | if ( $this->getDbType() == Maintenance::DB_NONE ) { |
| 127 | // TODO: Allow hooks to be registered via SettingsBuilder as well! |
| 128 | // This matches the idea of unifying SettingsBuilder with ExtensionRegistry. |
| 129 | // phpcs:disable MediaWiki.Usage.DeprecatedGlobalVariables.Deprecated$wgHooks |
| 130 | global $wgHooks; |
| 131 | $wgHooks['InterwikiLoadPrefix'][] = 'DumpIterator::disableInterwikis'; |
| 132 | |
| 133 | $settingsBuilder->putConfigValues( [ |
| 134 | MainConfigNames::UseDatabaseMessages => false, |
| 135 | MainConfigNames::LocalisationCacheConf => [ 'storeClass' => LCStoreNull::class ], |
| 136 | ] ); |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | public static function disableInterwikis( $prefix, &$data ) { |
| 141 | # Title::newFromText will check on each namespaced article if it's an interwiki. |
| 142 | # We always answer that it is not. |
| 143 | |
| 144 | return false; |
| 145 | } |
| 146 | |
| 147 | /** |
| 148 | * Callback function for each revision, child classes should override |
| 149 | * processRevision instead. |
| 150 | * @param WikiRevision $rev |
| 151 | */ |
| 152 | public function handleRevision( $rev ) { |
| 153 | $title = $rev->getTitle(); |
| 154 | if ( !$title ) { |
| 155 | $this->error( "Got bogus revision with null title!" ); |
| 156 | |
| 157 | return; |
| 158 | } |
| 159 | |
| 160 | $this->count++; |
| 161 | if ( $this->from !== false ) { |
| 162 | if ( $this->from != $title ) { |
| 163 | return; |
| 164 | } |
| 165 | $this->output( "Skipped " . ( $this->count - 1 ) . " pages\n" ); |
| 166 | |
| 167 | $this->count = 1; |
| 168 | $this->from = null; |
| 169 | } |
| 170 | |
| 171 | $this->processRevision( $rev ); |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * Stub function for processing additional options |
| 176 | */ |
| 177 | public function checkOptions() { |
| 178 | } |
| 179 | |
| 180 | /** |
| 181 | * Stub function for giving data about what was computed |
| 182 | */ |
| 183 | public function conclusions() { |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * Core function which does whatever the maintenance script is designed to do |
| 188 | * |
| 189 | * @param WikiRevision $rev |
| 190 | */ |
| 191 | abstract public function processRevision( WikiRevision $rev ); |
| 192 | } |
| 193 | |
| 194 | /** |
| 195 | * Maintenance script that runs a regex in the revisions from a dump. |
| 196 | * |
| 197 | * @ingroup Maintenance |
| 198 | */ |
| 199 | class SearchDump extends DumpIterator { |
| 200 | |
| 201 | public function __construct() { |
| 202 | parent::__construct(); |
| 203 | $this->addDescription( 'Runs a regex in the revisions from a dump' ); |
| 204 | $this->addOption( 'regex', 'Searching regex', true, true ); |
| 205 | } |
| 206 | |
| 207 | public function getDbType() { |
| 208 | return Maintenance::DB_NONE; |
| 209 | } |
| 210 | |
| 211 | /** |
| 212 | * @param WikiRevision $rev |
| 213 | */ |
| 214 | public function processRevision( WikiRevision $rev ) { |
| 215 | if ( preg_match( $this->getOption( 'regex' ), $rev->getContent()->getTextForSearchIndex() ) ) { |
| 216 | $this->output( $rev->getTitle() . " matches at edit from " . $rev->getTimestamp() . "\n" ); |
| 217 | } |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | // @codeCoverageIgnoreStart |
| 222 | $maintClass = SearchDump::class; |
| 223 | require_once RUN_MAINTENANCE_IF_MAIN; |
| 224 | // @codeCoverageIgnoreEnd |