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| 1 | <?php |
| 2 | /** |
| 3 | * Import XML dump files into the current wiki. |
| 4 | * |
| 5 | * Copyright © 2005 Brooke Vibber <bvibber@wikimedia.org> |
| 6 | * https://www.mediawiki.org/ |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 21 | * http://www.gnu.org/copyleft/gpl.html |
| 22 | * |
| 23 | * @file |
| 24 | * @ingroup Maintenance |
| 25 | */ |
| 26 | |
| 27 | use MediaWiki\Linker\LinkTarget; |
| 28 | use MediaWiki\Permissions\UltimateAuthority; |
| 29 | |
| 30 | require_once __DIR__ . '/Maintenance.php'; |
| 31 | |
| 32 | /** |
| 33 | * Maintenance script that imports XML dump files into the current wiki. |
| 34 | * |
| 35 | * @ingroup Maintenance |
| 36 | */ |
| 37 | class BackupReader extends Maintenance { |
| 38 | /** @var int */ |
| 39 | public $reportingInterval = 100; |
| 40 | /** @var int */ |
| 41 | public $pageCount = 0; |
| 42 | /** @var int */ |
| 43 | public $revCount = 0; |
| 44 | /** @var bool */ |
| 45 | public $dryRun = false; |
| 46 | /** @var bool */ |
| 47 | public $uploads = false; |
| 48 | /** @var int */ |
| 49 | protected $uploadCount = 0; |
| 50 | /** @var string|false */ |
| 51 | public $imageBasePath = false; |
| 52 | /** @var array|false */ |
| 53 | public $nsFilter = false; |
| 54 | /** @var resource|false */ |
| 55 | public $stderr; |
| 56 | /** @var callable|null */ |
| 57 | protected $importCallback; |
| 58 | /** @var callable|null */ |
| 59 | protected $logItemCallback; |
| 60 | /** @var callable|null */ |
| 61 | protected $uploadCallback; |
| 62 | /** @var float */ |
| 63 | protected $startTime; |
| 64 | |
| 65 | public function __construct() { |
| 66 | parent::__construct(); |
| 67 | $gz = in_array( 'compress.zlib', stream_get_wrappers() ) |
| 68 | ? 'ok' |
| 69 | : '(disabled; requires PHP zlib module)'; |
| 70 | $bz2 = in_array( 'compress.bzip2', stream_get_wrappers() ) |
| 71 | ? 'ok' |
| 72 | : '(disabled; requires PHP bzip2 module)'; |
| 73 | |
| 74 | $this->addDescription( |
| 75 | <<<TEXT |
| 76 | This script reads pages from an XML file as produced from Special:Export or |
| 77 | dumpBackup.php, and saves them into the current wiki. |
| 78 | |
| 79 | Compressed XML files may be read directly: |
| 80 | .gz $gz |
| 81 | .bz2 $bz2 |
| 82 | .7z (if 7za executable is in PATH) |
| 83 | |
| 84 | Note that for very large data sets, importDump.php may be slow; there are |
| 85 | alternate methods which can be much faster for full site restoration: |
| 86 | <https://www.mediawiki.org/wiki/Manual:Importing_XML_dumps> |
| 87 | TEXT |
| 88 | ); |
| 89 | $this->stderr = fopen( "php://stderr", "wt" ); |
| 90 | $this->addOption( 'report', |
| 91 | 'Report position and speed after every n pages processed', false, true ); |
| 92 | $this->addOption( 'namespaces', |
| 93 | 'Import only the pages from namespaces belonging to the list of ' . |
| 94 | 'pipe-separated namespace names or namespace indexes', false, true ); |
| 95 | $this->addOption( 'rootpage', 'Pages will be imported as subpages of the specified page', |
| 96 | false, true ); |
| 97 | $this->addOption( 'dry-run', 'Parse dump without actually importing pages' ); |
| 98 | $this->addOption( 'debug', 'Output extra verbose debug information' ); |
| 99 | $this->addOption( 'uploads', 'Process file upload data if included (experimental)' ); |
| 100 | $this->addOption( |
| 101 | 'no-updates', |
| 102 | 'Disable link table updates. Is faster but leaves the wiki in an inconsistent state' |
| 103 | ); |
| 104 | $this->addOption( 'image-base-path', 'Import files from a specified path', false, true ); |
| 105 | $this->addOption( 'skip-to', 'Start from nth page by skipping first n-1 pages', false, true ); |
| 106 | $this->addOption( 'username-prefix', |
| 107 | 'Prefix for interwiki usernames; a trailing ">" will be added. Default: "imported>"', |
| 108 | false, true ); |
| 109 | $this->addOption( 'no-local-users', |
| 110 | 'Treat all usernames as interwiki. ' . |
| 111 | 'The default is to assign edits to local users where they exist.', |
| 112 | false, false |
| 113 | ); |
| 114 | $this->addArg( 'file', 'Dump file to import [else use stdin]', false ); |
| 115 | } |
| 116 | |
| 117 | public function execute() { |
| 118 | if ( $this->getServiceContainer()->getReadOnlyMode()->isReadOnly() ) { |
| 119 | $this->fatalError( "Wiki is in read-only mode; you'll need to disable it for import to work." ); |
| 120 | } |
| 121 | |
| 122 | $this->reportingInterval = intval( $this->getOption( 'report', 100 ) ); |
| 123 | if ( !$this->reportingInterval ) { |
| 124 | // avoid division by zero |
| 125 | $this->reportingInterval = 100; |
| 126 | } |
| 127 | |
| 128 | $this->dryRun = $this->hasOption( 'dry-run' ); |
| 129 | $this->uploads = $this->hasOption( 'uploads' ); |
| 130 | |
| 131 | if ( $this->hasOption( 'image-base-path' ) ) { |
| 132 | $this->imageBasePath = $this->getOption( 'image-base-path' ); |
| 133 | } |
| 134 | if ( $this->hasOption( 'namespaces' ) ) { |
| 135 | $this->setNsfilter( explode( '|', $this->getOption( 'namespaces' ) ) ); |
| 136 | } |
| 137 | |
| 138 | if ( $this->hasArg( 0 ) ) { |
| 139 | $this->importFromFile( $this->getArg( 0 ) ); |
| 140 | } else { |
| 141 | $this->importFromStdin(); |
| 142 | } |
| 143 | |
| 144 | $this->output( "Done!\n" ); |
| 145 | $this->output( "You might want to run rebuildrecentchanges.php to regenerate RecentChanges,\n" ); |
| 146 | $this->output( "and initSiteStats.php to update page and revision counts\n" ); |
| 147 | } |
| 148 | |
| 149 | private function setNsfilter( array $namespaces ) { |
| 150 | if ( count( $namespaces ) == 0 ) { |
| 151 | $this->nsFilter = false; |
| 152 | |
| 153 | return; |
| 154 | } |
| 155 | $this->nsFilter = array_unique( array_map( [ $this, 'getNsIndex' ], $namespaces ) ); |
| 156 | } |
| 157 | |
| 158 | private function getNsIndex( $namespace ) { |
| 159 | $contLang = $this->getServiceContainer()->getContentLanguage(); |
| 160 | $result = $contLang->getNsIndex( $namespace ); |
| 161 | if ( $result !== false ) { |
| 162 | return $result; |
| 163 | } |
| 164 | $ns = intval( $namespace ); |
| 165 | if ( strval( $ns ) === $namespace && $contLang->getNsText( $ns ) !== false ) { |
| 166 | return $ns; |
| 167 | } |
| 168 | $this->fatalError( "Unknown namespace text / index specified: $namespace" ); |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * @param LinkTarget|null $title |
| 173 | * @return bool |
| 174 | */ |
| 175 | private function skippedNamespace( $title ) { |
| 176 | if ( $title === null ) { |
| 177 | // Probably a log entry |
| 178 | return false; |
| 179 | } |
| 180 | |
| 181 | $ns = $title->getNamespace(); |
| 182 | |
| 183 | return is_array( $this->nsFilter ) && !in_array( $ns, $this->nsFilter ); |
| 184 | } |
| 185 | |
| 186 | public function reportPage( $page ) { |
| 187 | $this->pageCount++; |
| 188 | } |
| 189 | |
| 190 | /** |
| 191 | * @param WikiRevision $rev |
| 192 | */ |
| 193 | public function handleRevision( WikiRevision $rev ) { |
| 194 | $title = $rev->getTitle(); |
| 195 | if ( !$title ) { |
| 196 | $this->progress( "Got bogus revision with null title!" ); |
| 197 | |
| 198 | return; |
| 199 | } |
| 200 | |
| 201 | if ( $this->skippedNamespace( $title ) ) { |
| 202 | return; |
| 203 | } |
| 204 | |
| 205 | $this->revCount++; |
| 206 | $this->report(); |
| 207 | |
| 208 | if ( !$this->dryRun ) { |
| 209 | call_user_func( $this->importCallback, $rev ); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | /** |
| 214 | * @param WikiRevision $revision |
| 215 | * @return bool |
| 216 | */ |
| 217 | public function handleUpload( WikiRevision $revision ) { |
| 218 | if ( $this->uploads ) { |
| 219 | if ( $this->skippedNamespace( $revision->getTitle() ) ) { |
| 220 | return false; |
| 221 | } |
| 222 | $this->uploadCount++; |
| 223 | // $this->report(); |
| 224 | $this->progress( "upload: " . $revision->getFilename() ); |
| 225 | |
| 226 | if ( !$this->dryRun ) { |
| 227 | // bluuuh hack |
| 228 | // call_user_func( $this->uploadCallback, $revision ); |
| 229 | $importer = $this->getServiceContainer()->getWikiRevisionUploadImporter(); |
| 230 | $statusValue = $importer->import( $revision ); |
| 231 | |
| 232 | return $statusValue->isGood(); |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | return false; |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * @param WikiRevision $rev |
| 241 | */ |
| 242 | public function handleLogItem( WikiRevision $rev ) { |
| 243 | if ( $this->skippedNamespace( $rev->getTitle() ) ) { |
| 244 | return; |
| 245 | } |
| 246 | $this->revCount++; |
| 247 | $this->report(); |
| 248 | |
| 249 | if ( !$this->dryRun ) { |
| 250 | call_user_func( $this->logItemCallback, $rev ); |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | private function report( $final = false ) { |
| 255 | if ( $final xor ( $this->pageCount % $this->reportingInterval == 0 ) ) { |
| 256 | $this->showReport(); |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | private function showReport() { |
| 261 | if ( !$this->mQuiet ) { |
| 262 | $delta = microtime( true ) - $this->startTime; |
| 263 | if ( $delta ) { |
| 264 | $rate = sprintf( "%.2f", $this->pageCount / $delta ); |
| 265 | $revrate = sprintf( "%.2f", $this->revCount / $delta ); |
| 266 | } else { |
| 267 | $rate = '-'; |
| 268 | $revrate = '-'; |
| 269 | } |
| 270 | # Logs dumps don't have page tallies |
| 271 | if ( $this->pageCount ) { |
| 272 | $this->progress( "$this->pageCount ($rate pages/sec $revrate revs/sec)" ); |
| 273 | } else { |
| 274 | $this->progress( "$this->revCount ($revrate revs/sec)" ); |
| 275 | } |
| 276 | } |
| 277 | $this->waitForReplication(); |
| 278 | } |
| 279 | |
| 280 | private function progress( $string ) { |
| 281 | fwrite( $this->stderr, $string . "\n" ); |
| 282 | } |
| 283 | |
| 284 | private function importFromFile( $filename ) { |
| 285 | if ( preg_match( '/\.gz$/', $filename ) ) { |
| 286 | $filename = 'compress.zlib://' . $filename; |
| 287 | } elseif ( preg_match( '/\.bz2$/', $filename ) ) { |
| 288 | $filename = 'compress.bzip2://' . $filename; |
| 289 | } elseif ( preg_match( '/\.7z$/', $filename ) ) { |
| 290 | $filename = 'mediawiki.compress.7z://' . $filename; |
| 291 | } |
| 292 | |
| 293 | $file = fopen( $filename, 'rt' ); |
| 294 | if ( $file === false ) { |
| 295 | $this->fatalError( error_get_last()['message'] ?? 'Could not open file' ); |
| 296 | } |
| 297 | |
| 298 | return $this->importFromHandle( $file ); |
| 299 | } |
| 300 | |
| 301 | private function importFromStdin() { |
| 302 | $file = fopen( 'php://stdin', 'rt' ); |
| 303 | if ( self::posix_isatty( $file ) ) { |
| 304 | $this->maybeHelp( true ); |
| 305 | } |
| 306 | |
| 307 | return $this->importFromHandle( $file ); |
| 308 | } |
| 309 | |
| 310 | private function importFromHandle( $handle ) { |
| 311 | $this->startTime = microtime( true ); |
| 312 | |
| 313 | $user = User::newSystemUser( User::MAINTENANCE_SCRIPT_USER, [ 'steal' => true ] ); |
| 314 | |
| 315 | $source = new ImportStreamSource( $handle ); |
| 316 | $importer = $this->getServiceContainer() |
| 317 | ->getWikiImporterFactory() |
| 318 | ->getWikiImporter( $source, new UltimateAuthority( $user ) ); |
| 319 | |
| 320 | // Updating statistics require a lot of time so disable it |
| 321 | $importer->disableStatisticsUpdate(); |
| 322 | |
| 323 | if ( $this->hasOption( 'debug' ) ) { |
| 324 | $importer->setDebug( true ); |
| 325 | } |
| 326 | if ( $this->hasOption( 'no-updates' ) ) { |
| 327 | $importer->setNoUpdates( true ); |
| 328 | } |
| 329 | $importer->setUsernamePrefix( |
| 330 | $this->getOption( 'username-prefix', 'imported' ), |
| 331 | !$this->hasOption( 'no-local-users' ) |
| 332 | ); |
| 333 | if ( $this->hasOption( 'rootpage' ) ) { |
| 334 | $statusRootPage = $importer->setTargetRootPage( $this->getOption( 'rootpage' ) ); |
| 335 | if ( !$statusRootPage->isGood() ) { |
| 336 | // Die here so that it doesn't print "Done!" |
| 337 | $this->fatalError( $statusRootPage->getMessage( false, false, 'en' )->text() ); |
| 338 | } |
| 339 | } |
| 340 | if ( $this->hasOption( 'skip-to' ) ) { |
| 341 | $nthPage = (int)$this->getOption( 'skip-to' ); |
| 342 | $importer->setPageOffset( $nthPage ); |
| 343 | $this->pageCount = $nthPage - 1; |
| 344 | } |
| 345 | $importer->setPageCallback( [ $this, 'reportPage' ] ); |
| 346 | $importer->setNoticeCallback( static function ( $msg, $params ) { |
| 347 | echo wfMessage( $msg, $params )->text() . "\n"; |
| 348 | } ); |
| 349 | $this->importCallback = $importer->setRevisionCallback( |
| 350 | [ $this, 'handleRevision' ] ); |
| 351 | $this->uploadCallback = $importer->setUploadCallback( |
| 352 | [ $this, 'handleUpload' ] ); |
| 353 | $this->logItemCallback = $importer->setLogItemCallback( |
| 354 | [ $this, 'handleLogItem' ] ); |
| 355 | if ( $this->uploads ) { |
| 356 | $importer->setImportUploads( true ); |
| 357 | } |
| 358 | if ( $this->imageBasePath ) { |
| 359 | $importer->setImageBasePath( $this->imageBasePath ); |
| 360 | } |
| 361 | |
| 362 | if ( $this->dryRun ) { |
| 363 | $importer->setPageOutCallback( null ); |
| 364 | } |
| 365 | |
| 366 | return $importer->doImport(); |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | $maintClass = BackupReader::class; |
| 371 | require_once RUN_MAINTENANCE_IF_MAIN; |