1 files changed, 350 insertions, 0 deletions
diff --git a/www/wiki/maintenance/importDump.php b/www/wiki/maintenance/importDump.php
new file mode 100644
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+++ b/www/wiki/maintenance/importDump.php
@@ -0,0 +1,350 @@
+<?php
+/**
+ * Import XML dump files into the current wiki.
+ *
+ * Copyright © 2005 Brion Vibber <brion@pobox.com>
+ * https://www.mediawiki.org/
+ *
+ * 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
+ * @ingroup Maintenance
+ */
+
+require_once __DIR__ . '/Maintenance.php';
+
+/**
+ * Maintenance script that imports XML dump files into the current wiki.
+ *
+ * @ingroup Maintenance
+ */
+class BackupReader extends Maintenance {
+	public $reportingInterval = 100;
+	public $pageCount = 0;
+	public $revCount = 0;
+	public $dryRun = false;
+	public $uploads = false;
+	protected $uploadCount = 0;
+	public $imageBasePath = false;
+	public $nsFilter = false;
+
+	function __construct() {
+		parent::__construct();
+		$gz = in_array( 'compress.zlib', stream_get_wrappers() )
+			? 'ok'
+			: '(disabled; requires PHP zlib module)';
+		$bz2 = in_array( 'compress.bzip2', stream_get_wrappers() )
+			? 'ok'
+			: '(disabled; requires PHP bzip2 module)';
+
+		$this->addDescription(
+			<<<TEXT
+This script reads pages from an XML file as produced from Special:Export or
+dumpBackup.php, and saves them into the current wiki.
+
+Compressed XML files may be read directly:
+  .gz $gz
+  .bz2 $bz2
+  .7z (if 7za executable is in PATH)
+
+Note that for very large data sets, importDump.php may be slow; there are
+alternate methods which can be much faster for full site restoration:
+<https://www.mediawiki.org/wiki/Manual:Importing_XML_dumps>
+TEXT
+		);
+		$this->stderr = fopen( "php://stderr", "wt" );
+		$this->addOption( 'report',
+			'Report position and speed after every n pages processed', false, true );
+		$this->addOption( 'namespaces',
+			'Import only the pages from namespaces belonging to the list of ' .
+			'pipe-separated namespace names or namespace indexes', false, true );
+		$this->addOption( 'rootpage', 'Pages will be imported as subpages of the specified page',
+			false, true );
+		$this->addOption( 'dry-run', 'Parse dump without actually importing pages' );
+		$this->addOption( 'debug', 'Output extra verbose debug information' );
+		$this->addOption( 'uploads', 'Process file upload data if included (experimental)' );
+		$this->addOption(
+			'no-updates',
+			'Disable link table updates. Is faster but leaves the wiki in an inconsistent state'
+		);
+		$this->addOption( 'image-base-path', 'Import files from a specified path', false, true );
+		$this->addOption( 'skip-to', 'Start from nth page by skipping first n-1 pages', false, true );
+		$this->addOption( 'username-interwiki', 'Use interwiki usernames with this prefix', false, true );
+		$this->addOption( 'no-local-users',
+			'Treat all usernames as interwiki. ' .
+			'The default is to assign edits to local users where they exist.',
+			false, false
+		);
+		$this->addArg( 'file', 'Dump file to import [else use stdin]', false );
+	}
+
+	public function execute() {
+		if ( wfReadOnly() ) {
+			$this->fatalError( "Wiki is in read-only mode; you'll need to disable it for import to work." );
+		}
+
+		$this->reportingInterval = intval( $this->getOption( 'report', 100 ) );
+		if ( !$this->reportingInterval ) {
+			$this->reportingInterval = 100; // avoid division by zero
+		}
+
+		$this->dryRun = $this->hasOption( 'dry-run' );
+		$this->uploads = $this->hasOption( 'uploads' ); // experimental!
+		if ( $this->hasOption( 'image-base-path' ) ) {
+			$this->imageBasePath = $this->getOption( 'image-base-path' );
+		}
+		if ( $this->hasOption( 'namespaces' ) ) {
+			$this->setNsfilter( explode( '|', $this->getOption( 'namespaces' ) ) );
+		}
+
+		if ( $this->hasArg() ) {
+			$this->importFromFile( $this->getArg() );
+		} else {
+			$this->importFromStdin();
+		}
+
+		$this->output( "Done!\n" );
+		$this->output( "You might want to run rebuildrecentchanges.php to regenerate RecentChanges,\n" );
+		$this->output( "and initSiteStats.php to update page and revision counts\n" );
+	}
+
+	function setNsfilter( array $namespaces ) {
+		if ( count( $namespaces ) == 0 ) {
+			$this->nsFilter = false;
+
+			return;
+		}
+		$this->nsFilter = array_unique( array_map( [ $this, 'getNsIndex' ], $namespaces ) );
+	}
+
+	private function getNsIndex( $namespace ) {
+		global $wgContLang;
+		$result = $wgContLang->getNsIndex( $namespace );
+		if ( $result !== false ) {
+			return $result;
+		}
+		$ns = intval( $namespace );
+		if ( strval( $ns ) === $namespace && $wgContLang->getNsText( $ns ) !== false ) {
+			return $ns;
+		}
+		$this->fatalError( "Unknown namespace text / index specified: $namespace" );
+	}
+
+	/**
+	 * @param Title|Revision $obj
+	 * @throws MWException
+	 * @return bool
+	 */
+	private function skippedNamespace( $obj ) {
+		$title = null;
+		if ( $obj instanceof Title ) {
+			$title = $obj;
+		} elseif ( $obj instanceof Revision ) {
+			$title = $obj->getTitle();
+		} elseif ( $obj instanceof WikiRevision ) {
+			$title = $obj->title;
+		} else {
+			throw new MWException( "Cannot get namespace of object in " . __METHOD__ );
+		}
+
+		if ( is_null( $title ) ) {
+			// Probably a log entry
+			return false;
+		}
+
+		$ns = $title->getNamespace();
+
+		return is_array( $this->nsFilter ) && !in_array( $ns, $this->nsFilter );
+	}
+
+	function reportPage( $page ) {
+		$this->pageCount++;
+	}
+
+	/**
+	 * @param Revision $rev
+	 */
+	function handleRevision( $rev ) {
+		$title = $rev->getTitle();
+		if ( !$title ) {
+			$this->progress( "Got bogus revision with null title!" );
+
+			return;
+		}
+
+		if ( $this->skippedNamespace( $title ) ) {
+			return;
+		}
+
+		$this->revCount++;
+		$this->report();
+
+		if ( !$this->dryRun ) {
+			call_user_func( $this->importCallback, $rev );
+		}
+	}
+
+	/**
+	 * @param Revision $revision
+	 * @return bool
+	 */
+	function handleUpload( $revision ) {
+		if ( $this->uploads ) {
+			if ( $this->skippedNamespace( $revision ) ) {
+				return false;
+			}
+			$this->uploadCount++;
+			// $this->report();
+			$this->progress( "upload: " . $revision->getFilename() );
+
+			if ( !$this->dryRun ) {
+				// bluuuh hack
+				// call_user_func( $this->uploadCallback, $revision );
+				$dbw = $this->getDB( DB_MASTER );
+
+				return $dbw->deadlockLoop( [ $revision, 'importUpload' ] );
+			}
+		}
+
+		return false;
+	}
+
+	function handleLogItem( $rev ) {
+		if ( $this->skippedNamespace( $rev ) ) {
+			return;
+		}
+		$this->revCount++;
+		$this->report();
+
+		if ( !$this->dryRun ) {
+			call_user_func( $this->logItemCallback, $rev );
+		}
+	}
+
+	function report( $final = false ) {
+		if ( $final xor ( $this->pageCount % $this->reportingInterval == 0 ) ) {
+			$this->showReport();
+		}
+	}
+
+	function showReport() {
+		if ( !$this->mQuiet ) {
+			$delta = microtime( true ) - $this->startTime;
+			if ( $delta ) {
+				$rate = sprintf( "%.2f", $this->pageCount / $delta );
+				$revrate = sprintf( "%.2f", $this->revCount / $delta );
+			} else {
+				$rate = '-';
+				$revrate = '-';
+			}
+			# Logs dumps don't have page tallies
+			if ( $this->pageCount ) {
+				$this->progress( "$this->pageCount ($rate pages/sec $revrate revs/sec)" );
+			} else {
+				$this->progress( "$this->revCount ($revrate revs/sec)" );
+			}
+		}
+		wfWaitForSlaves();
+	}
+
+	function progress( $string ) {
+		fwrite( $this->stderr, $string . "\n" );
+	}
+
+	function importFromFile( $filename ) {
+		if ( preg_match( '/\.gz$/', $filename ) ) {
+			$filename = 'compress.zlib://' . $filename;
+		} elseif ( preg_match( '/\.bz2$/', $filename ) ) {
+			$filename = 'compress.bzip2://' . $filename;
+		} elseif ( preg_match( '/\.7z$/', $filename ) ) {
+			$filename = 'mediawiki.compress.7z://' . $filename;
+		}
+
+		$file = fopen( $filename, 'rt' );
+
+		return $this->importFromHandle( $file );
+	}
+
+	function importFromStdin() {
+		$file = fopen( 'php://stdin', 'rt' );
+		if ( self::posix_isatty( $file ) ) {
+			$this->maybeHelp( true );
+		}
+
+		return $this->importFromHandle( $file );
+	}
+
+	function importFromHandle( $handle ) {
+		$this->startTime = microtime( true );
+
+		$source = new ImportStreamSource( $handle );
+		$importer = new WikiImporter( $source, $this->getConfig() );
+
+		// Updating statistics require a lot of time so disable it
+		$importer->disableStatisticsUpdate();
+
+		if ( $this->hasOption( 'debug' ) ) {
+			$importer->setDebug( true );
+		}
+		if ( $this->hasOption( 'no-updates' ) ) {
+			$importer->setNoUpdates( true );
+		}
+		if ( $this->hasOption( 'username-prefix' ) ) {
+			$importer->setUsernamePrefix(
+				$this->getOption( 'username-prefix' ),
+				!$this->hasOption( 'no-local-users' )
+			);
+		}
+		if ( $this->hasOption( 'rootpage' ) ) {
+			$statusRootPage = $importer->setTargetRootPage( $this->getOption( 'rootpage' ) );
+			if ( !$statusRootPage->isGood() ) {
+				// Die here so that it doesn't print "Done!"
+				$this->fatalError( $statusRootPage->getMessage()->text() );
+				return false;
+			}
+		}
+		if ( $this->hasOption( 'skip-to' ) ) {
+			$nthPage = (int)$this->getOption( 'skip-to' );
+			$importer->setPageOffset( $nthPage );
+			$this->pageCount = $nthPage - 1;
+		}
+		$importer->setPageCallback( [ $this, 'reportPage' ] );
+		$importer->setNoticeCallback( function ( $msg, $params ) {
+			echo wfMessage( $msg, $params )->text() . "\n";
+		} );
+		$this->importCallback = $importer->setRevisionCallback(
+			[ $this, 'handleRevision' ] );
+		$this->uploadCallback = $importer->setUploadCallback(
+			[ $this, 'handleUpload' ] );
+		$this->logItemCallback = $importer->setLogItemCallback(
+			[ $this, 'handleLogItem' ] );
+		if ( $this->uploads ) {
+			$importer->setImportUploads( true );
+		}
+		if ( $this->imageBasePath ) {
+			$importer->setImageBasePath( $this->imageBasePath );
+		}
+
+		if ( $this->dryRun ) {
+			$importer->setPageOutCallback( null );
+		}
+
+		return $importer->doImport();
+	}
+}
+
+$maintClass = BackupReader::class;
+require_once RUN_MAINTENANCE_IF_MAIN;