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ApiQueryAllRevisions.php
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ApiQueryAllRevisions.php
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<?php
/**
* Copyright © 2015 Wikimedia Foundation and contributors
*
* 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
*/
namespace MediaWiki\Api;
use MediaWiki\CommentFormatter\CommentFormatter;
use MediaWiki\Content\IContentHandlerFactory;
use MediaWiki\Content\Renderer\ContentRenderer;
use MediaWiki\Content\Transform\ContentTransformer;
use MediaWiki\MainConfigNames;
use MediaWiki\MediaWikiServices;
use MediaWiki\ParamValidator\TypeDef\UserDef;
use MediaWiki\Parser\ParserFactory;
use MediaWiki\Revision\RevisionRecord;
use MediaWiki\Revision\RevisionStore;
use MediaWiki\Revision\SlotRoleRegistry;
use MediaWiki\Title\NamespaceInfo;
use MediaWiki\Title\Title;
use MediaWiki\User\ActorMigration;
use MediaWiki\User\TempUser\TempUserCreator;
use MediaWiki\User\UserFactory;
use Wikimedia\ParamValidator\ParamValidator;
/**
* Query module to enumerate all revisions.
*
* @ingroup API
* @since 1.27
*/
class ApiQueryAllRevisions extends ApiQueryRevisionsBase {
private RevisionStore $revisionStore;
private ActorMigration $actorMigration;
private NamespaceInfo $namespaceInfo;
public function __construct(
ApiQuery $query,
string $moduleName,
RevisionStore $revisionStore,
IContentHandlerFactory $contentHandlerFactory,
ParserFactory $parserFactory,
SlotRoleRegistry $slotRoleRegistry,
ActorMigration $actorMigration,
NamespaceInfo $namespaceInfo,
ContentRenderer $contentRenderer,
ContentTransformer $contentTransformer,
CommentFormatter $commentFormatter,
TempUserCreator $tempUserCreator,
UserFactory $userFactory
) {
parent::__construct(
$query,
$moduleName,
'arv',
$revisionStore,
$contentHandlerFactory,
$parserFactory,
$slotRoleRegistry,
$contentRenderer,
$contentTransformer,
$commentFormatter,
$tempUserCreator,
$userFactory
);
$this->revisionStore = $revisionStore;
$this->actorMigration = $actorMigration;
$this->namespaceInfo = $namespaceInfo;
}
/**
* @param ApiPageSet|null $resultPageSet
* @return void
*/
protected function run( ?ApiPageSet $resultPageSet = null ) {
$db = $this->getDB();
$params = $this->extractRequestParams( false );
$result = $this->getResult();
$this->requireMaxOneParameter( $params, 'user', 'excludeuser' );
$tsField = 'rev_timestamp';
$idField = 'rev_id';
$pageField = 'rev_page';
// Namespace check is likely to be desired, but can't be done
// efficiently in SQL.
$miser_ns = null;
$needPageTable = false;
if ( $params['namespace'] !== null ) {
$params['namespace'] = array_unique( $params['namespace'] );
sort( $params['namespace'] );
if ( $params['namespace'] != $this->namespaceInfo->getValidNamespaces() ) {
$needPageTable = true;
if ( $this->getConfig()->get( MainConfigNames::MiserMode ) ) {
$miser_ns = $params['namespace'];
} else {
$this->addWhere( [ 'page_namespace' => $params['namespace'] ] );
}
}
}
if ( $resultPageSet === null ) {
$this->parseParameters( $params );
$queryBuilder = $this->revisionStore->newSelectQueryBuilder( $db )
->joinComment()
->joinPage();
$this->getQueryBuilder()->merge( $queryBuilder );
} else {
$this->limit = $this->getParameter( 'limit' ) ?: 10;
$this->addTables( [ 'revision' ] );
$this->addFields( [ 'rev_timestamp', 'rev_id' ] );
if ( $params['generatetitles'] ) {
$this->addFields( [ 'rev_page' ] );
}
if ( $params['user'] !== null || $params['excludeuser'] !== null ) {
$this->getQueryBuilder()->join( 'actor', 'actor_rev_user', 'actor_rev_user.actor_id = rev_actor' );
}
if ( $needPageTable ) {
$this->getQueryBuilder()->join( 'page', null, [ "$pageField = page_id" ] );
if ( (bool)$miser_ns ) {
$this->addFields( [ 'page_namespace' ] );
}
}
}
// Seems to be needed to avoid a planner bug (T113901)
$this->addOption( 'STRAIGHT_JOIN' );
$dir = $params['dir'];
$this->addTimestampWhereRange( $tsField, $dir, $params['start'], $params['end'] );
if ( $this->fld_tags ) {
$this->addFields( [
'ts_tags' => MediaWikiServices::getInstance()->getChangeTagsStore()
->makeTagSummarySubquery( 'revision' )
] );
}
if ( $params['user'] !== null ) {
$actorQuery = $this->actorMigration->getWhere( $db, 'rev_user', $params['user'] );
$this->addWhere( $actorQuery['conds'] );
} elseif ( $params['excludeuser'] !== null ) {
$actorQuery = $this->actorMigration->getWhere( $db, 'rev_user', $params['excludeuser'] );
$this->addWhere( 'NOT(' . $actorQuery['conds'] . ')' );
}
if ( $params['user'] !== null || $params['excludeuser'] !== null ) {
// Paranoia: avoid brute force searches (T19342)
if ( !$this->getAuthority()->isAllowed( 'deletedhistory' ) ) {
$bitmask = RevisionRecord::DELETED_USER;
} elseif ( !$this->getAuthority()->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
$bitmask = RevisionRecord::DELETED_USER | RevisionRecord::DELETED_RESTRICTED;
} else {
$bitmask = 0;
}
if ( $bitmask ) {
$this->addWhere( $db->bitAnd( 'rev_deleted', $bitmask ) . " != $bitmask" );
}
}
if ( $params['continue'] !== null ) {
$op = ( $dir == 'newer' ? '>=' : '<=' );
$cont = $this->parseContinueParamOrDie( $params['continue'], [ 'timestamp', 'int' ] );
$this->addWhere( $db->buildComparison( $op, [
$tsField => $db->timestamp( $cont[0] ),
$idField => $cont[1],
] ) );
}
$this->addOption( 'LIMIT', $this->limit + 1 );
$sort = ( $dir == 'newer' ? '' : ' DESC' );
$orderby = [];
// Targeting index rev_timestamp, user_timestamp, usertext_timestamp, or actor_timestamp.
// But 'user' is always constant for the latter three, so it doesn't matter here.
$orderby[] = "rev_timestamp $sort";
$orderby[] = "rev_id $sort";
$this->addOption( 'ORDER BY', $orderby );
$hookData = [];
$res = $this->select( __METHOD__, [], $hookData );
if ( $resultPageSet === null ) {
$this->executeGenderCacheFromResultWrapper( $res, __METHOD__ );
}
$pageMap = []; // Maps rev_page to array index
$count = 0;
$nextIndex = 0;
$generated = [];
foreach ( $res as $row ) {
if ( $count === 0 && $resultPageSet !== null ) {
// Set the non-continue since the list of all revisions is
// prone to having entries added at the start frequently.
$this->getContinuationManager()->addGeneratorNonContinueParam(
$this, 'continue', "$row->rev_timestamp|$row->rev_id"
);
}
if ( ++$count > $this->limit ) {
// We've had enough
$this->setContinueEnumParameter( 'continue', "$row->rev_timestamp|$row->rev_id" );
break;
}
// Miser mode namespace check
if ( $miser_ns !== null && !in_array( $row->page_namespace, $miser_ns ) ) {
continue;
}
if ( $resultPageSet !== null ) {
if ( $params['generatetitles'] ) {
$generated[$row->rev_page] = $row->rev_page;
} else {
$generated[] = $row->rev_id;
}
} else {
$revision = $this->revisionStore->newRevisionFromRow( $row, 0, Title::newFromRow( $row ) );
$rev = $this->extractRevisionInfo( $revision, $row );
if ( !isset( $pageMap[$row->rev_page] ) ) {
$index = $nextIndex++;
$pageMap[$row->rev_page] = $index;
$title = Title::newFromLinkTarget( $revision->getPageAsLinkTarget() );
$a = [
'pageid' => $title->getArticleID(),
'revisions' => [ $rev ],
];
ApiResult::setIndexedTagName( $a['revisions'], 'rev' );
ApiQueryBase::addTitleInfo( $a, $title );
$fit = $this->processRow( $row, $a['revisions'][0], $hookData ) &&
$result->addValue( [ 'query', $this->getModuleName() ], $index, $a );
} else {
$index = $pageMap[$row->rev_page];
$fit = $this->processRow( $row, $rev, $hookData ) &&
$result->addValue( [ 'query', $this->getModuleName(), $index, 'revisions' ], null, $rev );
}
if ( !$fit ) {
$this->setContinueEnumParameter( 'continue', "$row->rev_timestamp|$row->rev_id" );
break;
}
}
}
if ( $resultPageSet !== null ) {
if ( $params['generatetitles'] ) {
$resultPageSet->populateFromPageIDs( $generated );
} else {
$resultPageSet->populateFromRevisionIDs( $generated );
}
} else {
$result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'page' );
}
}
public function getAllowedParams() {
$ret = parent::getAllowedParams() + [
'user' => [
ParamValidator::PARAM_TYPE => 'user',
UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'ip', 'temp', 'id', 'interwiki' ],
UserDef::PARAM_RETURN_OBJECT => true,
],
'namespace' => [
ParamValidator::PARAM_ISMULTI => true,
ParamValidator::PARAM_TYPE => 'namespace',
ParamValidator::PARAM_DEFAULT => null,
],
'start' => [
ParamValidator::PARAM_TYPE => 'timestamp',
],
'end' => [
ParamValidator::PARAM_TYPE => 'timestamp',
],
'dir' => [
ParamValidator::PARAM_TYPE => [
'newer',
'older'
],
ParamValidator::PARAM_DEFAULT => 'older',
ApiBase::PARAM_HELP_MSG => 'api-help-param-direction',
ApiBase::PARAM_HELP_MSG_PER_VALUE => [
'newer' => 'api-help-paramvalue-direction-newer',
'older' => 'api-help-paramvalue-direction-older',
],
],
'excludeuser' => [
ParamValidator::PARAM_TYPE => 'user',
UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'ip', 'temp', 'id', 'interwiki' ],
UserDef::PARAM_RETURN_OBJECT => true,
],
'continue' => [
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
],
'generatetitles' => [
ParamValidator::PARAM_DEFAULT => false,
],
];
if ( $this->getConfig()->get( MainConfigNames::MiserMode ) ) {
$ret['namespace'][ApiBase::PARAM_HELP_MSG_APPEND] = [
'api-help-param-limited-in-miser-mode',
];
}
return $ret;
}
protected function getExamplesMessages() {
return [
'action=query&list=allrevisions&arvuser=Example&arvlimit=50'
=> 'apihelp-query+allrevisions-example-user',
'action=query&list=allrevisions&arvdir=newer&arvlimit=50'
=> 'apihelp-query+allrevisions-example-ns-any',
];
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Allrevisions';
}
}
/** @deprecated class alias since 1.43 */
class_alias( ApiQueryAllRevisions::class, 'ApiQueryAllRevisions' );

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