includes/api/ApiRollback.php
<?php
/**
* Copyright © 2007 Roan Kattouw <roan.kattouw@gmail.com>
*
* 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 ChangeTags;
use MediaWiki\Deferred\DeferredUpdates;
use MediaWiki\MainConfigNames;
use MediaWiki\Page\RollbackPageFactory;
use MediaWiki\ParamValidator\TypeDef\UserDef;
use MediaWiki\Title\Title;
use MediaWiki\User\Options\UserOptionsLookup;
use MediaWiki\User\UserIdentity;
use MediaWiki\Watchlist\WatchlistManager;
use Profiler;
use Wikimedia\ParamValidator\ParamValidator;
/**
* @ingroup API
*/
class ApiRollback extends ApiBase {
use ApiWatchlistTrait;
private RollbackPageFactory $rollbackPageFactory;
public function __construct(
ApiMain $mainModule,
$moduleName,
RollbackPageFactory $rollbackPageFactory,
WatchlistManager $watchlistManager,
UserOptionsLookup $userOptionsLookup
) {
parent::__construct( $mainModule, $moduleName );
$this->rollbackPageFactory = $rollbackPageFactory;
// Variables needed in ApiWatchlistTrait trait
$this->watchlistExpiryEnabled = $this->getConfig()->get( MainConfigNames::WatchlistExpiry );
$this->watchlistMaxDuration =
$this->getConfig()->get( MainConfigNames::WatchlistExpiryMaxDuration );
$this->watchlistManager = $watchlistManager;
$this->userOptionsLookup = $userOptionsLookup;
}
/**
* @var Title
*/
private $mTitleObj = null;
/**
* @var UserIdentity
*/
private $mUser = null;
public function execute() {
$this->useTransactionalTimeLimit();
$user = $this->getUser();
$params = $this->extractRequestParams();
$titleObj = $this->getRbTitle( $params );
// If change tagging was requested, check that the user is allowed to tag,
// and the tags are valid. TODO: move inside rollback command?
if ( $params['tags'] ) {
$tagStatus = ChangeTags::canAddTagsAccompanyingChange( $params['tags'], $this->getAuthority() );
if ( !$tagStatus->isOK() ) {
$this->dieStatus( $tagStatus );
}
}
// @TODO: remove this hack once rollback uses POST (T88044)
$fname = __METHOD__;
$trxLimits = $this->getConfig()->get( MainConfigNames::TrxProfilerLimits );
$trxProfiler = Profiler::instance()->getTransactionProfiler();
$trxProfiler->redefineExpectations( $trxLimits['POST'], $fname );
DeferredUpdates::addCallableUpdate( static function () use ( $trxProfiler, $trxLimits, $fname ) {
$trxProfiler->redefineExpectations( $trxLimits['PostSend-POST'], $fname );
} );
$rollbackResult = $this->rollbackPageFactory
->newRollbackPage( $titleObj, $this->getAuthority(), $this->getRbUser( $params ) )
->setSummary( $params['summary'] )
->markAsBot( $params['markbot'] )
->setChangeTags( $params['tags'] )
->rollbackIfAllowed();
if ( !$rollbackResult->isGood() ) {
$this->dieStatus( $rollbackResult );
}
$watch = $params['watchlist'] ?? 'preferences';
$watchlistExpiry = $this->getExpiryFromParams( $params );
// Watch pages
$this->setWatch( $watch, $titleObj, $user, 'watchrollback', $watchlistExpiry );
$details = $rollbackResult->getValue();
$currentRevisionRecord = $details['current-revision-record'];
$targetRevisionRecord = $details['target-revision-record'];
$info = [
'title' => $titleObj->getPrefixedText(),
'pageid' => $currentRevisionRecord->getPageId(),
'summary' => $details['summary'],
'revid' => (int)$details['newid'],
// The revision being reverted (previously the current revision of the page)
'old_revid' => $currentRevisionRecord->getID(),
// The revision being restored (the last revision before revision(s) by the reverted user)
'last_revid' => $targetRevisionRecord->getID()
];
$this->getResult()->addValue( null, $this->getModuleName(), $info );
}
public function mustBePosted() {
return true;
}
public function isWriteMode() {
return true;
}
public function getAllowedParams() {
$params = [
'title' => null,
'pageid' => [
ParamValidator::PARAM_TYPE => 'integer'
],
'tags' => [
ParamValidator::PARAM_TYPE => 'tags',
ParamValidator::PARAM_ISMULTI => true,
],
'user' => [
ParamValidator::PARAM_TYPE => 'user',
UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'ip', 'temp', 'id', 'interwiki' ],
UserDef::PARAM_RETURN_OBJECT => true,
ParamValidator::PARAM_REQUIRED => true
],
'summary' => '',
'markbot' => false,
];
// Params appear in the docs in the order they are defined,
// which is why this is here (we want it above the token param).
$params += $this->getWatchlistParams();
return $params + [
'token' => [
// Standard definition automatically inserted
ApiBase::PARAM_HELP_MSG_APPEND => [ 'api-help-param-token-webui' ],
],
];
}
public function needsToken() {
return 'rollback';
}
/**
* @param array $params
*
* @return UserIdentity
*/
private function getRbUser( array $params ): UserIdentity {
if ( $this->mUser !== null ) {
return $this->mUser;
}
$this->mUser = $params['user'];
return $this->mUser;
}
/**
* @param array $params
*
* @return Title
*/
private function getRbTitle( array $params ) {
if ( $this->mTitleObj !== null ) {
return $this->mTitleObj;
}
$this->requireOnlyOneParameter( $params, 'title', 'pageid' );
if ( isset( $params['title'] ) ) {
$this->mTitleObj = Title::newFromText( $params['title'] );
if ( !$this->mTitleObj || $this->mTitleObj->isExternal() ) {
$this->dieWithError( [ 'apierror-invalidtitle', wfEscapeWikiText( $params['title'] ) ] );
}
} elseif ( isset( $params['pageid'] ) ) {
$this->mTitleObj = Title::newFromID( $params['pageid'] );
if ( !$this->mTitleObj ) {
$this->dieWithError( [ 'apierror-nosuchpageid', $params['pageid'] ] );
}
}
if ( !$this->mTitleObj->exists() ) {
$this->dieWithError( 'apierror-missingtitle' );
}
return $this->mTitleObj;
}
protected function getExamplesMessages() {
$title = Title::newMainPage()->getPrefixedText();
$mp = rawurlencode( $title );
return [
"action=rollback&title={$mp}&user=Example&token=123ABC" =>
'apihelp-rollback-example-simple',
"action=rollback&title={$mp}&user=192.0.2.5&" .
'token=123ABC&summary=Reverting%20vandalism&markbot=1' =>
'apihelp-rollback-example-summary',
];
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Rollback';
}
}
/** @deprecated class alias since 1.43 */
class_alias( ApiRollback::class, 'ApiRollback' );