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<?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;
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->addArg( 'file', 'Dump file to import [else use stdin]', false );
}
public function execute() {
if ( wfReadOnly() ) {
$this->error( "Wiki is in read-only mode; you'll need to disable it for import to work.", true );
}
$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" );
}
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->error( "Unknown namespace text / index specified: $namespace", true );
}
/**
* @param Title|Revision $obj
* @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() );
if ( $this->hasOption( 'debug' ) ) {
$importer->setDebug( true );
}
if ( $this->hasOption( 'no-updates' ) ) {
$importer->setNoUpdates( true );
}
if ( $this->hasOption( 'rootpage' ) ) {
$statusRootPage = $importer->setTargetRootPage( $this->getOption( 'rootpage' ) );
if ( !$statusRootPage->isGood() ) {
// Die here so that it doesn't print "Done!"
$this->error( $statusRootPage->getMessage()->text(), 1 );
return false;
}
}
$importer->setPageCallback( [ $this, 'reportPage' ] );
$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';
require_once RUN_MAINTENANCE_IF_MAIN;