1b29f07440
Changes to the use statements done automatically via script Addition of missing use statement done manually Change-Id: I73fb416573f5af600e529d224b5beb5d2e3d27d3
1359 lines
38 KiB
PHP
1359 lines
38 KiB
PHP
<?php
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/**
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* MediaWiki page data importer.
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*
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* Copyright © 2003,2005 Brooke Vibber <bvibber@wikimedia.org>
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* https://www.mediawiki.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup SpecialPage
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*/
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use MediaWiki\Cache\CacheKeyHelper;
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use MediaWiki\Config\Config;
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use MediaWiki\Content\Content;
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use MediaWiki\Content\IContentHandlerFactory;
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use MediaWiki\Deferred\DeferredUpdates;
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use MediaWiki\Deferred\SiteStatsUpdate;
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use MediaWiki\HookContainer\HookContainer;
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use MediaWiki\HookContainer\HookRunner;
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use MediaWiki\Language\Language;
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use MediaWiki\MainConfigNames;
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use MediaWiki\Page\PageIdentity;
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use MediaWiki\Page\WikiPageFactory;
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use MediaWiki\Permissions\Authority;
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use MediaWiki\Revision\SlotRecord;
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use MediaWiki\Revision\SlotRoleRegistry;
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use MediaWiki\Status\Status;
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use MediaWiki\Title\ForeignTitle;
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use MediaWiki\Title\ImportTitleFactory;
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use MediaWiki\Title\NaiveForeignTitleFactory;
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use MediaWiki\Title\NaiveImportTitleFactory;
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use MediaWiki\Title\NamespaceAwareForeignTitleFactory;
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use MediaWiki\Title\NamespaceImportTitleFactory;
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use MediaWiki\Title\NamespaceInfo;
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use MediaWiki\Title\SubpageImportTitleFactory;
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use MediaWiki\Title\Title;
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use MediaWiki\Title\TitleFactory;
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use MediaWiki\User\ExternalUserNames;
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use Wikimedia\AtEase\AtEase;
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use Wikimedia\NormalizedException\NormalizedException;
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use Wikimedia\Rdbms\IDBAccessObject;
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/**
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* XML file reader for the page data importer.
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*
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* implements Special:Import
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* @ingroup SpecialPage
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*/
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class WikiImporter {
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/** @var XMLReader|null */
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private $reader;
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/** @var string */
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private $sourceAdapterId;
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/** @var array|null */
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private $foreignNamespaces = null;
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/** @var callable */
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private $mLogItemCallback;
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/** @var callable */
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private $mUploadCallback;
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/** @var callable|null */
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private $mRevisionCallback;
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/** @var callable|null */
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private $mPageCallback;
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/** @var callable|null */
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private $mSiteInfoCallback;
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/** @var callable|null */
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private $mPageOutCallback;
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/** @var callable|null */
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private $mNoticeCallback;
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/** @var bool|null */
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private $mDebug;
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/** @var bool|null */
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private $mImportUploads;
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/** @var string|null */
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private $mImageBasePath;
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/** @var bool */
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private $mNoUpdates = false;
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/** @var int */
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private $pageOffset = 0;
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private ImportTitleFactory $importTitleFactory;
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private ExternalUserNames $externalUserNames;
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/** @var array */
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private $countableCache = [];
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/** @var bool */
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private $disableStatisticsUpdate = false;
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/**
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* Authority used for permission checks only (to ensure that the user performing the import is
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* allowed to edit the pages they're importing). To skip the checks, use UltimateAuthority.
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*
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* If you want to also log the import actions, see ImportReporter.
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*/
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private Authority $performer;
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private Config $config;
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private HookRunner $hookRunner;
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private Language $contentLanguage;
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private NamespaceInfo $namespaceInfo;
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private TitleFactory $titleFactory;
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private WikiPageFactory $wikiPageFactory;
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private UploadRevisionImporter $uploadRevisionImporter;
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private IContentHandlerFactory $contentHandlerFactory;
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private SlotRoleRegistry $slotRoleRegistry;
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/**
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* Creates an ImportXMLReader drawing from the source provided
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*/
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public function __construct(
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ImportSource $source,
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Authority $performer,
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Config $config,
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HookContainer $hookContainer,
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Language $contentLanguage,
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NamespaceInfo $namespaceInfo,
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TitleFactory $titleFactory,
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WikiPageFactory $wikiPageFactory,
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UploadRevisionImporter $uploadRevisionImporter,
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IContentHandlerFactory $contentHandlerFactory,
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SlotRoleRegistry $slotRoleRegistry
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) {
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$this->performer = $performer;
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$this->config = $config;
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$this->hookRunner = new HookRunner( $hookContainer );
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$this->contentLanguage = $contentLanguage;
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$this->namespaceInfo = $namespaceInfo;
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$this->titleFactory = $titleFactory;
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$this->wikiPageFactory = $wikiPageFactory;
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$this->uploadRevisionImporter = $uploadRevisionImporter;
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$this->contentHandlerFactory = $contentHandlerFactory;
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$this->slotRoleRegistry = $slotRoleRegistry;
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if ( !in_array( 'uploadsource', stream_get_wrappers() ) ) {
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stream_wrapper_register( 'uploadsource', UploadSourceAdapter::class );
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}
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$this->sourceAdapterId = UploadSourceAdapter::registerSource( $source );
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$this->openReader();
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// Default callbacks
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$this->setPageCallback( [ $this, 'beforeImportPage' ] );
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$this->setRevisionCallback( [ $this, "importRevision" ] );
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$this->setUploadCallback( [ $this, 'importUpload' ] );
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$this->setLogItemCallback( [ $this, 'importLogItem' ] );
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$this->setPageOutCallback( [ $this, 'finishImportPage' ] );
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$this->importTitleFactory = new NaiveImportTitleFactory(
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$this->contentLanguage,
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$this->namespaceInfo,
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$this->titleFactory
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);
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$this->externalUserNames = new ExternalUserNames( 'imported', false );
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}
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/**
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* @return null|XMLReader
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*/
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public function getReader() {
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return $this->reader;
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}
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/**
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* @param string $err
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*/
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public function throwXmlError( $err ) {
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$this->debug( "FAILURE: $err" );
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wfDebug( "WikiImporter XML error: $err" );
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}
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/**
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* @param string $data
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*/
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public function debug( $data ) {
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if ( $this->mDebug ) {
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wfDebug( "IMPORT: $data" );
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}
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}
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/**
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* @param string $data
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*/
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public function warn( $data ) {
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wfDebug( "IMPORT: $data" );
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}
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/**
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* @param string $msg
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* @param mixed ...$params
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*/
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public function notice( $msg, ...$params ) {
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if ( is_callable( $this->mNoticeCallback ) ) {
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call_user_func( $this->mNoticeCallback, $msg, $params );
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} else { # No ImportReporter -> CLI
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// T177997: the command line importers should call setNoticeCallback()
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// for their own custom callback to echo the notice
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wfDebug( wfMessage( $msg, $params )->text() );
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}
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}
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/**
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* Set debug mode...
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* @param bool $debug
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*/
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public function setDebug( $debug ) {
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$this->mDebug = $debug;
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}
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/**
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* Set 'no updates' mode. In this mode, the link tables will not be updated by the importer
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* @param bool $noupdates
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*/
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public function setNoUpdates( $noupdates ) {
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$this->mNoUpdates = $noupdates;
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}
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/**
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* Sets 'pageOffset' value. So it will skip the first n-1 pages
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* and start from the nth page. It's 1-based indexing.
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* @param int $nthPage
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* @since 1.29
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*/
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public function setPageOffset( $nthPage ) {
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$this->pageOffset = $nthPage;
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}
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/**
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* Set a callback that displays notice messages
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*
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* @param callable $callback
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* @return callable
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*/
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public function setNoticeCallback( $callback ) {
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return wfSetVar( $this->mNoticeCallback, $callback );
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}
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/**
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* Sets the action to perform as each new page in the stream is reached.
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* @param callable|null $callback
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* @return callable|null
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*/
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public function setPageCallback( $callback ) {
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$previous = $this->mPageCallback;
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$this->mPageCallback = $callback;
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return $previous;
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}
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/**
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* Sets the action to perform as each page in the stream is completed.
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* Callback accepts the page title (as a Title object), a second object
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* with the original title form (in case it's been overridden into a
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* local namespace), and a count of revisions.
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*
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* @param callable|null $callback
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* @return callable|null
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*/
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public function setPageOutCallback( $callback ) {
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$previous = $this->mPageOutCallback;
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$this->mPageOutCallback = $callback;
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return $previous;
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}
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/**
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* Sets the action to perform as each page revision is reached.
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* @param callable|null $callback
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* @return callable|null
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*/
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public function setRevisionCallback( $callback ) {
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$previous = $this->mRevisionCallback;
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$this->mRevisionCallback = $callback;
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return $previous;
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}
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/**
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* Sets the action to perform as each file upload version is reached.
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* @param callable $callback
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* @return callable
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*/
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public function setUploadCallback( $callback ) {
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$previous = $this->mUploadCallback;
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$this->mUploadCallback = $callback;
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return $previous;
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}
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/**
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* Sets the action to perform as each log item reached.
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* @param callable $callback
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* @return callable
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*/
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public function setLogItemCallback( $callback ) {
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$previous = $this->mLogItemCallback;
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$this->mLogItemCallback = $callback;
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return $previous;
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}
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/**
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* Sets the action to perform when site info is encountered
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* @param callable $callback
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* @return callable
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*/
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public function setSiteInfoCallback( $callback ) {
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$previous = $this->mSiteInfoCallback;
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$this->mSiteInfoCallback = $callback;
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return $previous;
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}
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/**
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* Sets the factory object to use to convert ForeignTitle objects into local
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* Title objects
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* @param ImportTitleFactory $factory
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*/
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public function setImportTitleFactory( $factory ) {
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$this->importTitleFactory = $factory;
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}
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/**
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* Set a target namespace to override the defaults
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* @param null|int $namespace
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* @return bool
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*/
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public function setTargetNamespace( $namespace ) {
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if ( $namespace === null ) {
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// Don't override namespaces
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$this->setImportTitleFactory(
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new NaiveImportTitleFactory(
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$this->contentLanguage,
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$this->namespaceInfo,
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$this->titleFactory
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)
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);
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return true;
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} elseif (
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$namespace >= 0 &&
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$this->namespaceInfo->exists( intval( $namespace ) )
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) {
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$namespace = intval( $namespace );
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$this->setImportTitleFactory(
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new NamespaceImportTitleFactory(
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$this->namespaceInfo,
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$this->titleFactory,
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$namespace
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)
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);
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return true;
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} else {
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return false;
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}
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}
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/**
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* Set a target root page under which all pages are imported
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* @param null|string $rootpage
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* @return Status
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*/
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public function setTargetRootPage( $rootpage ) {
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$status = Status::newGood();
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$nsInfo = $this->namespaceInfo;
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if ( $rootpage === null ) {
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// No rootpage
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$this->setImportTitleFactory(
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new NaiveImportTitleFactory(
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$this->contentLanguage,
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$nsInfo,
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$this->titleFactory
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)
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);
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} elseif ( $rootpage !== '' ) {
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$rootpage = rtrim( $rootpage, '/' ); // avoid double slashes
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$title = Title::newFromText( $rootpage );
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if ( !$title || $title->isExternal() ) {
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$status->fatal( 'import-rootpage-invalid' );
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} elseif ( !$nsInfo->hasSubpages( $title->getNamespace() ) ) {
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$displayNSText = $title->getNamespace() === NS_MAIN
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? wfMessage( 'blanknamespace' )->text()
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: $this->contentLanguage->getNsText( $title->getNamespace() );
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$status->fatal( 'import-rootpage-nosubpage', $displayNSText );
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} else {
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// set namespace to 'all', so the namespace check in processTitle() can pass
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$this->setTargetNamespace( null );
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$this->setImportTitleFactory(
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new SubpageImportTitleFactory(
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$nsInfo,
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$this->titleFactory,
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$title
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)
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);
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}
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}
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return $status;
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}
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/**
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* @param string $dir
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*/
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public function setImageBasePath( $dir ) {
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$this->mImageBasePath = $dir;
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}
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/**
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* @param bool $import
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*/
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public function setImportUploads( $import ) {
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$this->mImportUploads = $import;
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}
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/**
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* @since 1.31
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* @param string $usernamePrefix Prefix to apply to unknown (and possibly also known) usernames
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* @param bool $assignKnownUsers Whether to apply the prefix to usernames that exist locally
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*/
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public function setUsernamePrefix( $usernamePrefix, $assignKnownUsers ) {
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$this->externalUserNames = new ExternalUserNames( $usernamePrefix, $assignKnownUsers );
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}
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/**
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* Statistics update can cause a lot of time
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* @since 1.29
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*/
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public function disableStatisticsUpdate() {
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$this->disableStatisticsUpdate = true;
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}
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/**
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* Default per-page callback. Sets up some things related to site statistics
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* @param array $titleAndForeignTitle Two-element array, with Title object at
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* index 0 and ForeignTitle object at index 1
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* @return bool
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*/
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public function beforeImportPage( $titleAndForeignTitle ) {
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$title = $titleAndForeignTitle[0];
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$page = $this->wikiPageFactory->newFromTitle( $title );
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$this->countableCache['title_' . $title->getPrefixedText()] = $page->isCountable();
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return true;
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}
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/**
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* Default per-revision callback, performs the import.
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* @param WikiRevision $revision
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* @return bool
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*/
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public function importRevision( $revision ) {
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if ( !$revision->getContentHandler()->canBeUsedOn( $revision->getTitle() ) ) {
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$this->notice( 'import-error-bad-location',
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$revision->getTitle()->getPrefixedText(),
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$revision->getID(),
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$revision->getModel(),
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$revision->getFormat()
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);
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return false;
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}
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try {
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return $revision->importOldRevision();
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} catch ( MWContentSerializationException $ex ) {
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$this->notice( 'import-error-unserialize',
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$revision->getTitle()->getPrefixedText(),
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$revision->getID(),
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$revision->getModel(),
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$revision->getFormat()
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);
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}
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return false;
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}
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/**
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* Default per-revision callback, performs the import.
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* @param WikiRevision $revision
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* @return bool
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*/
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public function importLogItem( $revision ) {
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return $revision->importLogItem();
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}
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/**
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* Dummy for now...
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* @param WikiRevision $revision
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* @return bool
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*/
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public function importUpload( $revision ) {
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$status = $this->uploadRevisionImporter->import( $revision );
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return $status->isGood();
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}
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/**
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* Mostly for hook use
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* @param PageIdentity $pageIdentity
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* @param ForeignTitle $foreignTitle
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* @param int $revCount
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* @param int $sRevCount
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* @param array $pageInfo
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* @return bool
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*/
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public function finishImportPage( PageIdentity $pageIdentity, $foreignTitle, $revCount,
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$sRevCount, $pageInfo
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) {
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// Update article count statistics (T42009)
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// The normal counting logic in WikiPage->doEditUpdates() is designed for
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// one-revision-at-a-time editing, not bulk imports. In this situation it
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// suffers from issues of replica DB lag. We let WikiPage handle the total page
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// and revision count, and we implement our own custom logic for the
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// article (content page) count.
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if ( !$this->disableStatisticsUpdate ) {
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$page = $this->wikiPageFactory->newFromTitle( $pageIdentity );
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$page->loadPageData( IDBAccessObject::READ_LATEST );
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$rev = $page->getRevisionRecord();
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if ( $rev === null ) {
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wfDebug( __METHOD__ . ': Skipping article count adjustment for ' . $pageIdentity .
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' because WikiPage::getRevisionRecord() returned null' );
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} else {
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$update = $page->newPageUpdater( $this->performer )->prepareUpdate();
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$countKey = 'title_' . CacheKeyHelper::getKeyForPage( $pageIdentity );
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$countable = $update->isCountable();
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if ( array_key_exists( $countKey, $this->countableCache ) &&
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$countable != $this->countableCache[$countKey] ) {
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DeferredUpdates::addUpdate( SiteStatsUpdate::factory( [
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'articles' => ( (int)$countable - (int)$this->countableCache[$countKey] )
|
|
] ) );
|
|
}
|
|
}
|
|
}
|
|
|
|
$title = Title::newFromPageIdentity( $pageIdentity );
|
|
return $this->hookRunner->onAfterImportPage( $title, $foreignTitle,
|
|
$revCount, $sRevCount, $pageInfo );
|
|
}
|
|
|
|
/**
|
|
* Notify the callback function of site info
|
|
* @param array $siteInfo
|
|
* @return mixed|false
|
|
*/
|
|
private function siteInfoCallback( $siteInfo ) {
|
|
if ( isset( $this->mSiteInfoCallback ) ) {
|
|
return call_user_func_array(
|
|
$this->mSiteInfoCallback,
|
|
[ $siteInfo, $this ]
|
|
);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Notify the callback function when a new "<page>" is reached.
|
|
* @param array $title
|
|
*/
|
|
public function pageCallback( $title ) {
|
|
if ( isset( $this->mPageCallback ) ) {
|
|
call_user_func( $this->mPageCallback, $title );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Notify the callback function when a "</page>" is closed.
|
|
* @param PageIdentity $pageIdentity
|
|
* @param ForeignTitle $foreignTitle
|
|
* @param int $revCount
|
|
* @param int $sucCount Number of revisions for which callback returned true
|
|
* @param array $pageInfo Associative array of page information
|
|
*/
|
|
private function pageOutCallback( PageIdentity $pageIdentity, $foreignTitle, $revCount,
|
|
$sucCount, $pageInfo ) {
|
|
if ( isset( $this->mPageOutCallback ) ) {
|
|
call_user_func_array( $this->mPageOutCallback, func_get_args() );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Notify the callback function of a revision
|
|
* @param WikiRevision $revision
|
|
* @return bool|mixed
|
|
*/
|
|
private function revisionCallback( $revision ) {
|
|
if ( isset( $this->mRevisionCallback ) ) {
|
|
return call_user_func_array(
|
|
$this->mRevisionCallback,
|
|
[ $revision, $this ]
|
|
);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Notify the callback function of a new log item
|
|
* @param WikiRevision $revision
|
|
* @return mixed|false
|
|
*/
|
|
private function logItemCallback( $revision ) {
|
|
if ( isset( $this->mLogItemCallback ) ) {
|
|
return call_user_func_array(
|
|
$this->mLogItemCallback,
|
|
[ $revision, $this ]
|
|
);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Retrieves the contents of the named attribute of the current element.
|
|
* @param string $attr The name of the attribute
|
|
* @return string The value of the attribute or an empty string if it is not set in the current
|
|
* element.
|
|
*/
|
|
public function nodeAttribute( $attr ) {
|
|
return $this->reader->getAttribute( $attr ) ?? '';
|
|
}
|
|
|
|
/**
|
|
* Shouldn't something like this be built-in to XMLReader?
|
|
* Fetches text contents of the current element, assuming
|
|
* no sub-elements or such scary things.
|
|
* @return string
|
|
* @internal
|
|
*/
|
|
public function nodeContents() {
|
|
if ( $this->reader->isEmptyElement ) {
|
|
return "";
|
|
}
|
|
$buffer = "";
|
|
while ( $this->reader->read() ) {
|
|
switch ( $this->reader->nodeType ) {
|
|
case XMLReader::TEXT:
|
|
case XMLReader::CDATA:
|
|
case XMLReader::SIGNIFICANT_WHITESPACE:
|
|
$buffer .= $this->reader->value;
|
|
break;
|
|
case XMLReader::END_ELEMENT:
|
|
return $buffer;
|
|
}
|
|
}
|
|
|
|
$this->reader->close();
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Primary entry point
|
|
* @throws Exception
|
|
* @return bool
|
|
*/
|
|
public function doImport() {
|
|
$this->syntaxCheckXML();
|
|
|
|
// Calls to reader->read need to be wrapped in calls to
|
|
// libxml_disable_entity_loader() to avoid local file
|
|
// inclusion attacks (T48932).
|
|
// phpcs:ignore Generic.PHP.NoSilencedErrors -- suppress deprecation per T268847
|
|
$oldDisable = @libxml_disable_entity_loader( true );
|
|
try {
|
|
$this->reader->read();
|
|
|
|
if ( $this->reader->localName != 'mediawiki' ) {
|
|
// phpcs:ignore Generic.PHP.NoSilencedErrors
|
|
@libxml_disable_entity_loader( $oldDisable );
|
|
$error = libxml_get_last_error();
|
|
if ( $error ) {
|
|
throw new NormalizedException( "XML error at line {line}: {message}", [
|
|
'line' => $error->line,
|
|
'message' => $error->message,
|
|
] );
|
|
} else {
|
|
throw new UnexpectedValueException(
|
|
"Expected '<mediawiki>' tag, got '<{$this->reader->localName}>' tag."
|
|
);
|
|
}
|
|
}
|
|
$this->debug( "<mediawiki> tag is correct." );
|
|
|
|
$this->debug( "Starting primary dump processing loop." );
|
|
|
|
$keepReading = $this->reader->read();
|
|
$skip = false;
|
|
$pageCount = 0;
|
|
while ( $keepReading ) {
|
|
$tag = $this->reader->localName;
|
|
if ( $this->pageOffset ) {
|
|
if ( $tag === 'page' ) {
|
|
$pageCount++;
|
|
}
|
|
if ( $pageCount < $this->pageOffset ) {
|
|
$keepReading = $this->reader->next();
|
|
continue;
|
|
}
|
|
}
|
|
$type = $this->reader->nodeType;
|
|
|
|
if ( !$this->hookRunner->onImportHandleToplevelXMLTag( $this ) ) {
|
|
// Do nothing
|
|
} elseif ( $tag == 'mediawiki' && $type == XMLReader::END_ELEMENT ) {
|
|
break;
|
|
} elseif ( $tag == 'siteinfo' ) {
|
|
$this->handleSiteInfo();
|
|
} elseif ( $tag == 'page' ) {
|
|
$this->handlePage();
|
|
} elseif ( $tag == 'logitem' ) {
|
|
$this->handleLogItem();
|
|
} elseif ( $tag != '#text' ) {
|
|
$this->warn( "Unhandled top-level XML tag $tag" );
|
|
|
|
$skip = true;
|
|
}
|
|
|
|
if ( $skip ) {
|
|
$keepReading = $this->reader->next();
|
|
$skip = false;
|
|
$this->debug( "Skip" );
|
|
} else {
|
|
$keepReading = $this->reader->read();
|
|
}
|
|
}
|
|
} finally {
|
|
// phpcs:ignore Generic.PHP.NoSilencedErrors
|
|
@libxml_disable_entity_loader( $oldDisable );
|
|
$this->reader->close();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private function handleSiteInfo() {
|
|
$this->debug( "Enter site info handler." );
|
|
$siteInfo = [];
|
|
|
|
// Fields that can just be stuffed in the siteInfo object
|
|
$normalFields = [ 'sitename', 'base', 'generator', 'case' ];
|
|
|
|
while ( $this->reader->read() ) {
|
|
if ( $this->reader->nodeType == XMLReader::END_ELEMENT &&
|
|
$this->reader->localName == 'siteinfo' ) {
|
|
break;
|
|
}
|
|
|
|
$tag = $this->reader->localName;
|
|
|
|
if ( $tag == 'namespace' ) {
|
|
$this->foreignNamespaces[$this->nodeAttribute( 'key' )] =
|
|
$this->nodeContents();
|
|
} elseif ( in_array( $tag, $normalFields ) ) {
|
|
$siteInfo[$tag] = $this->nodeContents();
|
|
}
|
|
}
|
|
|
|
$siteInfo['_namespaces'] = $this->foreignNamespaces;
|
|
$this->siteInfoCallback( $siteInfo );
|
|
}
|
|
|
|
private function handleLogItem() {
|
|
$this->debug( "Enter log item handler." );
|
|
$logInfo = [];
|
|
|
|
// Fields that can just be stuffed in the pageInfo object
|
|
$normalFields = [ 'id', 'comment', 'type', 'action', 'timestamp',
|
|
'logtitle', 'params' ];
|
|
|
|
while ( $this->reader->read() ) {
|
|
if ( $this->reader->nodeType == XMLReader::END_ELEMENT &&
|
|
$this->reader->localName == 'logitem' ) {
|
|
break;
|
|
}
|
|
|
|
$tag = $this->reader->localName;
|
|
|
|
if ( !$this->hookRunner->onImportHandleLogItemXMLTag( $this, $logInfo ) ) {
|
|
// Do nothing
|
|
} elseif ( in_array( $tag, $normalFields ) ) {
|
|
$logInfo[$tag] = $this->nodeContents();
|
|
} elseif ( $tag == 'contributor' ) {
|
|
$logInfo['contributor'] = $this->handleContributor();
|
|
} elseif ( $tag != '#text' ) {
|
|
$this->warn( "Unhandled log-item XML tag $tag" );
|
|
}
|
|
}
|
|
|
|
$this->processLogItem( $logInfo );
|
|
}
|
|
|
|
/**
|
|
* @param array $logInfo
|
|
* @return mixed|false
|
|
*/
|
|
private function processLogItem( $logInfo ) {
|
|
$revision = new WikiRevision();
|
|
|
|
if ( isset( $logInfo['id'] ) ) {
|
|
$revision->setID( $logInfo['id'] );
|
|
}
|
|
$revision->setType( $logInfo['type'] );
|
|
$revision->setAction( $logInfo['action'] );
|
|
if ( isset( $logInfo['timestamp'] ) ) {
|
|
$revision->setTimestamp( $logInfo['timestamp'] );
|
|
}
|
|
if ( isset( $logInfo['params'] ) ) {
|
|
$revision->setParams( $logInfo['params'] );
|
|
}
|
|
if ( isset( $logInfo['logtitle'] ) ) {
|
|
// @todo Using Title for non-local titles is a recipe for disaster.
|
|
// We should use ForeignTitle here instead.
|
|
$revision->setTitle( Title::newFromText( $logInfo['logtitle'] ) );
|
|
}
|
|
|
|
$revision->setNoUpdates( $this->mNoUpdates );
|
|
|
|
if ( isset( $logInfo['comment'] ) ) {
|
|
$revision->setComment( $logInfo['comment'] );
|
|
}
|
|
|
|
if ( isset( $logInfo['contributor']['username'] ) ) {
|
|
$revision->setUsername(
|
|
$this->externalUserNames->applyPrefix( $logInfo['contributor']['username'] )
|
|
);
|
|
} elseif ( isset( $logInfo['contributor']['ip'] ) ) {
|
|
$revision->setUserIP( $logInfo['contributor']['ip'] );
|
|
} else {
|
|
$revision->setUsername( $this->externalUserNames->addPrefix( 'Unknown user' ) );
|
|
}
|
|
|
|
return $this->logItemCallback( $revision );
|
|
}
|
|
|
|
private function handlePage() {
|
|
// Handle page data.
|
|
$this->debug( "Enter page handler." );
|
|
$pageInfo = [ 'revisionCount' => 0, 'successfulRevisionCount' => 0 ];
|
|
|
|
// Fields that can just be stuffed in the pageInfo object
|
|
$normalFields = [ 'title', 'ns', 'id', 'redirect', 'restrictions' ];
|
|
|
|
$skip = false;
|
|
$badTitle = false;
|
|
|
|
while ( $skip ? $this->reader->next() : $this->reader->read() ) {
|
|
if ( $this->reader->nodeType == XMLReader::END_ELEMENT &&
|
|
$this->reader->localName == 'page' ) {
|
|
break;
|
|
}
|
|
|
|
$skip = false;
|
|
|
|
$tag = $this->reader->localName;
|
|
|
|
if ( $badTitle ) {
|
|
// The title is invalid, bail out of this page
|
|
$skip = true;
|
|
} elseif ( !$this->hookRunner->onImportHandlePageXMLTag( $this, $pageInfo ) ) {
|
|
// Do nothing
|
|
} elseif ( in_array( $tag, $normalFields ) ) {
|
|
// An XML snippet:
|
|
// <page>
|
|
// <id>123</id>
|
|
// <title>Page</title>
|
|
// <redirect title="NewTitle"/>
|
|
// ...
|
|
// Because the redirect tag is built differently, we need special handling for that case.
|
|
if ( $tag == 'redirect' ) {
|
|
$pageInfo[$tag] = $this->nodeAttribute( 'title' );
|
|
} else {
|
|
$pageInfo[$tag] = $this->nodeContents();
|
|
}
|
|
} elseif ( $tag == 'revision' || $tag == 'upload' ) {
|
|
if ( !isset( $title ) ) {
|
|
$title = $this->processTitle( $pageInfo['title'],
|
|
$pageInfo['ns'] ?? null );
|
|
|
|
// $title is either an array of two titles or false.
|
|
if ( is_array( $title ) ) {
|
|
$this->pageCallback( $title );
|
|
[ $pageInfo['_title'], $foreignTitle ] = $title;
|
|
} else {
|
|
$badTitle = true;
|
|
$skip = true;
|
|
}
|
|
}
|
|
|
|
if ( $title ) {
|
|
if ( $tag == 'revision' ) {
|
|
$this->handleRevision( $pageInfo );
|
|
} else {
|
|
$this->handleUpload( $pageInfo );
|
|
}
|
|
}
|
|
} elseif ( $tag != '#text' ) {
|
|
$this->warn( "Unhandled page XML tag $tag" );
|
|
$skip = true;
|
|
}
|
|
}
|
|
|
|
// @note $pageInfo is only set if a valid $title is processed above with
|
|
// no error. If we have a valid $title, then pageCallback is called
|
|
// above, $pageInfo['title'] is set and we do pageOutCallback here.
|
|
// If $pageInfo['_title'] is not set, then $foreignTitle is also not
|
|
// set since they both come from $title above.
|
|
if ( array_key_exists( '_title', $pageInfo ) ) {
|
|
/** @var Title $title */
|
|
$title = $pageInfo['_title'];
|
|
$this->pageOutCallback(
|
|
$title,
|
|
// @phan-suppress-next-line PhanPossiblyUndeclaredVariable Set together with _title key
|
|
$foreignTitle,
|
|
$pageInfo['revisionCount'],
|
|
$pageInfo['successfulRevisionCount'],
|
|
$pageInfo
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param array &$pageInfo
|
|
*/
|
|
private function handleRevision( &$pageInfo ) {
|
|
$this->debug( "Enter revision handler" );
|
|
$revisionInfo = [];
|
|
|
|
$normalFields = [ 'id', 'parentid', 'timestamp', 'comment', 'minor', 'origin',
|
|
'model', 'format', 'text', 'sha1' ];
|
|
|
|
$skip = false;
|
|
|
|
while ( $skip ? $this->reader->next() : $this->reader->read() ) {
|
|
if ( $this->reader->nodeType == XMLReader::END_ELEMENT &&
|
|
$this->reader->localName == 'revision' ) {
|
|
break;
|
|
}
|
|
|
|
$tag = $this->reader->localName;
|
|
|
|
if ( !$this->hookRunner->onImportHandleRevisionXMLTag(
|
|
$this, $pageInfo, $revisionInfo )
|
|
) {
|
|
// Do nothing
|
|
} elseif ( in_array( $tag, $normalFields ) ) {
|
|
$revisionInfo[$tag] = $this->nodeContents();
|
|
} elseif ( $tag == 'content' ) {
|
|
// We can have multiple content tags, so make this an array.
|
|
$revisionInfo[$tag][] = $this->handleContent();
|
|
} elseif ( $tag == 'contributor' ) {
|
|
$revisionInfo['contributor'] = $this->handleContributor();
|
|
} elseif ( $tag != '#text' ) {
|
|
$this->warn( "Unhandled revision XML tag $tag" );
|
|
$skip = true;
|
|
}
|
|
}
|
|
|
|
$pageInfo['revisionCount']++;
|
|
if ( $this->processRevision( $pageInfo, $revisionInfo ) ) {
|
|
$pageInfo['successfulRevisionCount']++;
|
|
}
|
|
}
|
|
|
|
private function handleContent() {
|
|
$this->debug( "Enter content handler" );
|
|
$contentInfo = [];
|
|
|
|
$normalFields = [ 'role', 'origin', 'model', 'format', 'text' ];
|
|
|
|
$skip = false;
|
|
|
|
while ( $skip ? $this->reader->next() : $this->reader->read() ) {
|
|
if ( $this->reader->nodeType == XMLReader::END_ELEMENT &&
|
|
$this->reader->localName == 'content' ) {
|
|
break;
|
|
}
|
|
|
|
$tag = $this->reader->localName;
|
|
|
|
if ( !$this->hookRunner->onImportHandleContentXMLTag(
|
|
$this, $contentInfo )
|
|
) {
|
|
// Do nothing
|
|
} elseif ( in_array( $tag, $normalFields ) ) {
|
|
$contentInfo[$tag] = $this->nodeContents();
|
|
} elseif ( $tag != '#text' ) {
|
|
$this->warn( "Unhandled content XML tag $tag" );
|
|
$skip = true;
|
|
}
|
|
}
|
|
|
|
return $contentInfo;
|
|
}
|
|
|
|
/**
|
|
* @param PageIdentity $page
|
|
* @param int $revisionId
|
|
* @param array $contentInfo
|
|
*
|
|
* @return Content
|
|
*/
|
|
private function makeContent( PageIdentity $page, $revisionId, $contentInfo ) {
|
|
$maxArticleSize = $this->config->get( MainConfigNames::MaxArticleSize );
|
|
|
|
if ( !isset( $contentInfo['text'] ) ) {
|
|
throw new InvalidArgumentException( 'Missing text field in import.' );
|
|
}
|
|
|
|
// Make sure revisions won't violate $wgMaxArticleSize, which could lead to
|
|
// database errors and instability. Testing for revisions with only listed
|
|
// content models, as other content models might use serialization formats
|
|
// which aren't checked against $wgMaxArticleSize.
|
|
if ( ( !isset( $contentInfo['model'] ) ||
|
|
in_array( $contentInfo['model'], [
|
|
'wikitext',
|
|
'css',
|
|
'json',
|
|
'javascript',
|
|
'text',
|
|
''
|
|
] ) ) &&
|
|
strlen( $contentInfo['text'] ) > $maxArticleSize * 1024
|
|
) {
|
|
throw new RuntimeException( 'The text of ' .
|
|
( $revisionId ?
|
|
"the revision with ID $revisionId" :
|
|
'a revision'
|
|
) . " exceeds the maximum allowable size ({$maxArticleSize} KiB)" );
|
|
}
|
|
|
|
$role = $contentInfo['role'] ?? SlotRecord::MAIN;
|
|
$model = $contentInfo['model'] ?? $this->slotRoleRegistry
|
|
->getRoleHandler( $role )
|
|
->getDefaultModel( $page );
|
|
$handler = $this->contentHandlerFactory->getContentHandler( $model );
|
|
|
|
$text = $handler->importTransform( $contentInfo['text'] );
|
|
|
|
return $handler->unserializeContent( $text );
|
|
}
|
|
|
|
/**
|
|
* @param array $pageInfo
|
|
* @param array $revisionInfo
|
|
* @return mixed|false
|
|
*/
|
|
private function processRevision( $pageInfo, $revisionInfo ) {
|
|
$revision = new WikiRevision();
|
|
|
|
$revId = $revisionInfo['id'] ?? 0;
|
|
if ( $revId ) {
|
|
$revision->setID( $revisionInfo['id'] );
|
|
}
|
|
|
|
$title = $pageInfo['_title'];
|
|
$revision->setTitle( $title );
|
|
|
|
$content = $this->makeContent( $title, $revId, $revisionInfo );
|
|
$revision->setContent( SlotRecord::MAIN, $content );
|
|
|
|
foreach ( $revisionInfo['content'] ?? [] as $slotInfo ) {
|
|
if ( !isset( $slotInfo['role'] ) ) {
|
|
throw new RuntimeException( "Missing role for imported slot." );
|
|
}
|
|
|
|
$content = $this->makeContent( $title, $revId, $slotInfo );
|
|
$revision->setContent( $slotInfo['role'], $content );
|
|
}
|
|
$revision->setTimestamp( $revisionInfo['timestamp'] ?? wfTimestampNow() );
|
|
|
|
if ( isset( $revisionInfo['comment'] ) ) {
|
|
$revision->setComment( $revisionInfo['comment'] );
|
|
}
|
|
|
|
if ( isset( $revisionInfo['minor'] ) ) {
|
|
$revision->setMinor( true );
|
|
}
|
|
if ( isset( $revisionInfo['contributor']['username'] ) ) {
|
|
$revision->setUsername(
|
|
$this->externalUserNames->applyPrefix( $revisionInfo['contributor']['username'] )
|
|
);
|
|
} elseif ( isset( $revisionInfo['contributor']['ip'] ) ) {
|
|
$revision->setUserIP( $revisionInfo['contributor']['ip'] );
|
|
} else {
|
|
$revision->setUsername( $this->externalUserNames->addPrefix( 'Unknown user' ) );
|
|
}
|
|
if ( isset( $revisionInfo['sha1'] ) ) {
|
|
$revision->setSha1Base36( $revisionInfo['sha1'] );
|
|
}
|
|
$revision->setNoUpdates( $this->mNoUpdates );
|
|
|
|
return $this->revisionCallback( $revision );
|
|
}
|
|
|
|
/**
|
|
* @param array &$pageInfo
|
|
* @return mixed
|
|
*/
|
|
private function handleUpload( &$pageInfo ) {
|
|
$this->debug( "Enter upload handler" );
|
|
$uploadInfo = [];
|
|
|
|
$normalFields = [ 'timestamp', 'comment', 'filename', 'text',
|
|
'src', 'size', 'sha1base36', 'archivename', 'rel' ];
|
|
|
|
$skip = false;
|
|
|
|
while ( $skip ? $this->reader->next() : $this->reader->read() ) {
|
|
if ( $this->reader->nodeType == XMLReader::END_ELEMENT &&
|
|
$this->reader->localName == 'upload' ) {
|
|
break;
|
|
}
|
|
|
|
$tag = $this->reader->localName;
|
|
|
|
if ( !$this->hookRunner->onImportHandleUploadXMLTag( $this, $pageInfo ) ) {
|
|
// Do nothing
|
|
} elseif ( in_array( $tag, $normalFields ) ) {
|
|
$uploadInfo[$tag] = $this->nodeContents();
|
|
} elseif ( $tag == 'contributor' ) {
|
|
$uploadInfo['contributor'] = $this->handleContributor();
|
|
} elseif ( $tag == 'contents' ) {
|
|
$contents = $this->nodeContents();
|
|
$encoding = $this->reader->getAttribute( 'encoding' );
|
|
if ( $encoding === 'base64' ) {
|
|
$uploadInfo['fileSrc'] = $this->dumpTemp( base64_decode( $contents ) );
|
|
$uploadInfo['isTempSrc'] = true;
|
|
}
|
|
} elseif ( $tag != '#text' ) {
|
|
$this->warn( "Unhandled upload XML tag $tag" );
|
|
$skip = true;
|
|
}
|
|
}
|
|
|
|
if ( $this->mImageBasePath && isset( $uploadInfo['rel'] ) ) {
|
|
$path = "{$this->mImageBasePath}/{$uploadInfo['rel']}";
|
|
if ( file_exists( $path ) ) {
|
|
$uploadInfo['fileSrc'] = $path;
|
|
$uploadInfo['isTempSrc'] = false;
|
|
}
|
|
}
|
|
|
|
if ( $this->mImportUploads ) {
|
|
return $this->processUpload( $pageInfo, $uploadInfo );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param string $contents
|
|
* @return string
|
|
*/
|
|
private function dumpTemp( $contents ) {
|
|
$filename = tempnam( wfTempDir(), 'importupload' );
|
|
file_put_contents( $filename, $contents );
|
|
return $filename;
|
|
}
|
|
|
|
/**
|
|
* @param array $pageInfo
|
|
* @param array $uploadInfo
|
|
* @return mixed
|
|
*/
|
|
private function processUpload( $pageInfo, $uploadInfo ) {
|
|
$revision = new WikiRevision();
|
|
$revId = $pageInfo['id'];
|
|
$title = $pageInfo['_title'];
|
|
// T292348: text key may be absent, force addition if null
|
|
$uploadInfo['text'] ??= '';
|
|
$content = $this->makeContent( $title, $revId, $uploadInfo );
|
|
|
|
$revision->setTitle( $title );
|
|
$revision->setID( $revId );
|
|
$revision->setTimestamp( $uploadInfo['timestamp'] );
|
|
$revision->setContent( SlotRecord::MAIN, $content );
|
|
$revision->setFilename( $uploadInfo['filename'] );
|
|
if ( isset( $uploadInfo['archivename'] ) ) {
|
|
$revision->setArchiveName( $uploadInfo['archivename'] );
|
|
}
|
|
$revision->setSrc( $uploadInfo['src'] );
|
|
if ( isset( $uploadInfo['fileSrc'] ) ) {
|
|
$revision->setFileSrc( $uploadInfo['fileSrc'],
|
|
!empty( $uploadInfo['isTempSrc'] )
|
|
);
|
|
}
|
|
if ( isset( $uploadInfo['sha1base36'] ) ) {
|
|
$revision->setSha1Base36( $uploadInfo['sha1base36'] );
|
|
}
|
|
$revision->setSize( intval( $uploadInfo['size'] ) );
|
|
$revision->setComment( $uploadInfo['comment'] );
|
|
|
|
if ( isset( $uploadInfo['contributor']['username'] ) ) {
|
|
$revision->setUsername(
|
|
$this->externalUserNames->applyPrefix( $uploadInfo['contributor']['username'] )
|
|
);
|
|
} elseif ( isset( $uploadInfo['contributor']['ip'] ) ) {
|
|
$revision->setUserIP( $uploadInfo['contributor']['ip'] );
|
|
}
|
|
$revision->setNoUpdates( $this->mNoUpdates );
|
|
|
|
return call_user_func( $this->mUploadCallback, $revision );
|
|
}
|
|
|
|
/**
|
|
* @return array
|
|
*/
|
|
private function handleContributor() {
|
|
$this->debug( "Enter contributor handler." );
|
|
|
|
if ( $this->reader->isEmptyElement ) {
|
|
return [];
|
|
}
|
|
|
|
$fields = [ 'id', 'ip', 'username' ];
|
|
$info = [];
|
|
|
|
while ( $this->reader->read() ) {
|
|
if ( $this->reader->nodeType == XMLReader::END_ELEMENT &&
|
|
$this->reader->localName == 'contributor' ) {
|
|
break;
|
|
}
|
|
|
|
$tag = $this->reader->localName;
|
|
|
|
if ( in_array( $tag, $fields ) ) {
|
|
$info[$tag] = $this->nodeContents();
|
|
}
|
|
}
|
|
|
|
return $info;
|
|
}
|
|
|
|
/**
|
|
* @param string $text
|
|
* @param string|null $ns
|
|
* @return array|false
|
|
*/
|
|
private function processTitle( $text, $ns = null ) {
|
|
if ( $this->foreignNamespaces === null ) {
|
|
$foreignTitleFactory = new NaiveForeignTitleFactory(
|
|
$this->contentLanguage
|
|
);
|
|
} else {
|
|
$foreignTitleFactory = new NamespaceAwareForeignTitleFactory(
|
|
$this->foreignNamespaces );
|
|
}
|
|
|
|
$foreignTitle = $foreignTitleFactory->createForeignTitle( $text,
|
|
intval( $ns ) );
|
|
|
|
$title = $this->importTitleFactory->createTitleFromForeignTitle(
|
|
$foreignTitle );
|
|
|
|
if ( $title === null ) {
|
|
# Invalid page title? Ignore the page
|
|
$this->notice( 'import-error-invalid', $foreignTitle->getFullText() );
|
|
return false;
|
|
} elseif ( $title->isExternal() ) {
|
|
$this->notice( 'import-error-interwiki', $title->getPrefixedText() );
|
|
return false;
|
|
} elseif ( !$title->canExist() ) {
|
|
$this->notice( 'import-error-special', $title->getPrefixedText() );
|
|
return false;
|
|
} elseif ( !$this->performer->definitelyCan( 'edit', $title ) ) {
|
|
# Do not import if the importing wiki user cannot edit this page
|
|
$this->notice( 'import-error-edit', $title->getPrefixedText() );
|
|
return false;
|
|
}
|
|
|
|
return [ $title, $foreignTitle ];
|
|
}
|
|
|
|
/**
|
|
* Open the XMLReader connected to the source adapter id
|
|
* @suppress PhanStaticCallToNonStatic, UnusedSuppression -- for PHP 7.4 support
|
|
*/
|
|
private function openReader() {
|
|
// Enable the entity loader, as it is needed for loading external URLs via
|
|
// XMLReader::open (T86036)
|
|
// phpcs:ignore Generic.PHP.NoSilencedErrors -- suppress deprecation per T268847
|
|
$oldDisable = @libxml_disable_entity_loader( false );
|
|
|
|
if ( PHP_VERSION_ID >= 80000 ) {
|
|
// A static call is now preferred, and avoids https://github.com/php/php-src/issues/11548
|
|
$reader = XMLReader::open(
|
|
'uploadsource://' . $this->sourceAdapterId, null, LIBXML_PARSEHUGE );
|
|
if ( $reader instanceof XMLReader ) {
|
|
$this->reader = $reader;
|
|
$status = true;
|
|
} else {
|
|
$status = false;
|
|
}
|
|
} else {
|
|
// A static call generated a deprecation warning prior to PHP 8.0
|
|
$this->reader = new XMLReader;
|
|
$status = $this->reader->open(
|
|
'uploadsource://' . $this->sourceAdapterId, null, LIBXML_PARSEHUGE );
|
|
}
|
|
if ( !$status ) {
|
|
$error = libxml_get_last_error();
|
|
// phpcs:ignore Generic.PHP.NoSilencedErrors
|
|
@libxml_disable_entity_loader( $oldDisable );
|
|
throw new RuntimeException(
|
|
'Encountered an internal error while initializing WikiImporter object: ' . $error->message
|
|
);
|
|
}
|
|
// phpcs:ignore Generic.PHP.NoSilencedErrors
|
|
@libxml_disable_entity_loader( $oldDisable );
|
|
}
|
|
|
|
/**
|
|
* Check the syntax of the given xml
|
|
*/
|
|
private function syntaxCheckXML() {
|
|
if ( !UploadSourceAdapter::isSeekableSource( $this->sourceAdapterId ) ) {
|
|
return;
|
|
}
|
|
AtEase::suppressWarnings();
|
|
$oldDisable = libxml_disable_entity_loader( false );
|
|
try {
|
|
while ( $this->reader->read() );
|
|
$error = libxml_get_last_error();
|
|
if ( $error ) {
|
|
$errorMessage = 'XML error at line ' . $error->line . ': ' . $error->message;
|
|
wfDebug( __METHOD__ . ': Invalid xml found - ' . $errorMessage );
|
|
throw new RuntimeException( $errorMessage );
|
|
}
|
|
} finally {
|
|
libxml_disable_entity_loader( $oldDisable );
|
|
AtEase::restoreWarnings();
|
|
$this->reader->close();
|
|
}
|
|
|
|
// Reopen for the real import
|
|
UploadSourceAdapter::seekSource( $this->sourceAdapterId, 0 );
|
|
$this->openReader();
|
|
}
|
|
}
|