diff options
Diffstat (limited to 'www/wiki/includes/api/ApiQueryAllRevisions.php')
-rw-r--r-- | www/wiki/includes/api/ApiQueryAllRevisions.php | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/www/wiki/includes/api/ApiQueryAllRevisions.php b/www/wiki/includes/api/ApiQueryAllRevisions.php new file mode 100644 index 00000000..3af24597 --- /dev/null +++ b/www/wiki/includes/api/ApiQueryAllRevisions.php @@ -0,0 +1,282 @@ +<?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 + */ + +/** + * Query module to enumerate all revisions. + * + * @ingroup API + * @since 1.27 + */ +class ApiQueryAllRevisions extends ApiQueryRevisionsBase { + + public function __construct( ApiQuery $query, $moduleName ) { + parent::__construct( $query, $moduleName, 'arv' ); + } + + /** + * @param ApiPageSet $resultPageSet + * @return void + */ + protected function run( ApiPageSet $resultPageSet = null ) { + $db = $this->getDB(); + $params = $this->extractRequestParams( false ); + + $result = $this->getResult(); + + $this->requireMaxOneParameter( $params, 'user', 'excludeuser' ); + + // 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'] != MWNamespace::getValidNamespaces() ) { + $needPageTable = true; + if ( $this->getConfig()->get( 'MiserMode' ) ) { + $miser_ns = $params['namespace']; + } else { + $this->addWhere( [ 'page_namespace' => $params['namespace'] ] ); + } + } + } + + if ( $resultPageSet === null ) { + $this->parseParameters( $params ); + $revQuery = Revision::getQueryInfo( + $this->fetchContent ? [ 'page', 'text' ] : [ 'page' ] + ); + $this->addTables( $revQuery['tables'] ); + $this->addFields( $revQuery['fields'] ); + $this->addJoinConds( $revQuery['joins'] ); + + // Review this depeneding on the outcome of T113901 + $this->addOption( 'STRAIGHT_JOIN' ); + } else { + $this->limit = $this->getParameter( 'limit' ) ?: 10; + $this->addTables( 'revision' ); + $this->addFields( [ 'rev_timestamp', 'rev_id' ] ); + if ( $params['generatetitles'] ) { + $this->addFields( [ 'rev_page' ] ); + } + + if ( $needPageTable ) { + $this->addTables( 'page' ); + $this->addJoinConds( + [ 'page' => [ 'INNER JOIN', [ 'rev_page = page_id' ] ] ] + ); + $this->addFieldsIf( [ 'page_namespace' ], (bool)$miser_ns ); + + // Review this depeneding on the outcome of T113901 + $this->addOption( 'STRAIGHT_JOIN' ); + } + } + + $dir = $params['dir']; + $this->addTimestampWhereRange( 'rev_timestamp', $dir, $params['start'], $params['end'] ); + + if ( $this->fld_tags ) { + $this->addTables( 'tag_summary' ); + $this->addJoinConds( + [ 'tag_summary' => [ 'LEFT JOIN', [ 'rev_id=ts_rev_id' ] ] ] + ); + $this->addFields( 'ts_tags' ); + } + + if ( $params['user'] !== null ) { + $actorQuery = ActorMigration::newMigration() + ->getWhere( $db, 'rev_user', User::newFromName( $params['user'], false ) ); + $this->addTables( $actorQuery['tables'] ); + $this->addJoinConds( $actorQuery['joins'] ); + $this->addWhere( $actorQuery['conds'] ); + } elseif ( $params['excludeuser'] !== null ) { + $actorQuery = ActorMigration::newMigration() + ->getWhere( $db, 'rev_user', User::newFromName( $params['excludeuser'], false ) ); + $this->addTables( $actorQuery['tables'] ); + $this->addJoinConds( $actorQuery['joins'] ); + $this->addWhere( 'NOT(' . $actorQuery['conds'] . ')' ); + } + + if ( $params['user'] !== null || $params['excludeuser'] !== null ) { + // Paranoia: avoid brute force searches (T19342) + if ( !$this->getUser()->isAllowed( 'deletedhistory' ) ) { + $bitmask = Revision::DELETED_USER; + } elseif ( !$this->getUser()->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) { + $bitmask = Revision::DELETED_USER | Revision::DELETED_RESTRICTED; + } else { + $bitmask = 0; + } + if ( $bitmask ) { + $this->addWhere( $db->bitAnd( 'rev_deleted', $bitmask ) . " != $bitmask" ); + } + } + + if ( $params['continue'] !== null ) { + $op = ( $dir == 'newer' ? '>' : '<' ); + $cont = explode( '|', $params['continue'] ); + $this->dieContinueUsageIf( count( $cont ) != 2 ); + $ts = $db->addQuotes( $db->timestamp( $cont[0] ) ); + $rev_id = (int)$cont[1]; + $this->dieContinueUsageIf( strval( $rev_id ) !== $cont[1] ); + $this->addWhere( "rev_timestamp $op $ts OR " . + "(rev_timestamp = $ts AND " . + "rev_id $op= $rev_id)" ); + } + + $this->addOption( 'LIMIT', $this->limit + 1 ); + + $sort = ( $dir == 'newer' ? '' : ' DESC' ); + $orderby = []; + // Targeting index rev_timestamp, user_timestamp, or usertext_timestamp + // But 'user' is always constant for the latter two, 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 ); + $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 = Revision::newFromRow( $row ); + $rev = $this->extractRevisionInfo( $revision, $row ); + + if ( !isset( $pageMap[$row->rev_page] ) ) { + $index = $nextIndex++; + $pageMap[$row->rev_page] = $index; + $title = $revision->getTitle(); + $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' => [ + ApiBase::PARAM_TYPE => 'user', + ], + 'namespace' => [ + ApiBase::PARAM_ISMULTI => true, + ApiBase::PARAM_TYPE => 'namespace', + ApiBase::PARAM_DFLT => null, + ], + 'start' => [ + ApiBase::PARAM_TYPE => 'timestamp', + ], + 'end' => [ + ApiBase::PARAM_TYPE => 'timestamp', + ], + 'dir' => [ + ApiBase::PARAM_TYPE => [ + 'newer', + 'older' + ], + ApiBase::PARAM_DFLT => 'older', + ApiBase::PARAM_HELP_MSG => 'api-help-param-direction', + ], + 'excludeuser' => [ + ApiBase::PARAM_TYPE => 'user', + ], + 'continue' => [ + ApiBase::PARAM_HELP_MSG => 'api-help-param-continue', + ], + 'generatetitles' => [ + ApiBase::PARAM_DFLT => false, + ], + ]; + + if ( $this->getConfig()->get( '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-main', + ]; + } + + public function getHelpUrls() { + return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Allrevisions'; + } +} |