517 lines
16 KiB
PHP
517 lines
16 KiB
PHP
<?php
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/**
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* Copyright © 2007 Roan Kattouw "<Firstname>.<Lastname>@gmail.com"
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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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*/
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use MediaWiki\MediaWikiServices;
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use MediaWiki\Storage\NameTableAccessException;
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/**
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* Query module to enumerate all deleted revisions.
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*
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* @ingroup API
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* @deprecated since 1.25
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*/
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class ApiQueryDeletedrevs extends ApiQueryBase {
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public function __construct( ApiQuery $query, $moduleName ) {
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parent::__construct( $query, $moduleName, 'dr' );
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}
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public function execute() {
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// Before doing anything at all, let's check permissions
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$this->checkUserRightsAny( 'deletedhistory' );
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$this->addDeprecation( 'apiwarn-deprecation-deletedrevs', 'action=query&list=deletedrevs' );
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$user = $this->getUser();
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$db = $this->getDB();
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$commentStore = CommentStore::getStore();
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$params = $this->extractRequestParams( false );
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$prop = array_flip( $params['prop'] );
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$fld_parentid = isset( $prop['parentid'] );
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$fld_revid = isset( $prop['revid'] );
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$fld_user = isset( $prop['user'] );
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$fld_userid = isset( $prop['userid'] );
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$fld_comment = isset( $prop['comment'] );
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$fld_parsedcomment = isset( $prop['parsedcomment'] );
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$fld_minor = isset( $prop['minor'] );
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$fld_len = isset( $prop['len'] );
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$fld_sha1 = isset( $prop['sha1'] );
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$fld_content = isset( $prop['content'] );
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$fld_token = isset( $prop['token'] );
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$fld_tags = isset( $prop['tags'] );
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if ( isset( $prop['token'] ) ) {
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$p = $this->getModulePrefix();
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}
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// If we're in a mode that breaks the same-origin policy, no tokens can
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// be obtained
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if ( $this->lacksSameOriginSecurity() ) {
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$fld_token = false;
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}
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// If user can't undelete, no tokens
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if ( !$user->isAllowed( 'undelete' ) ) {
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$fld_token = false;
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}
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$result = $this->getResult();
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$pageSet = $this->getPageSet();
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$titles = $pageSet->getTitles();
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// This module operates in three modes:
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// 'revs': List deleted revs for certain titles (1)
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// 'user': List deleted revs by a certain user (2)
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// 'all': List all deleted revs in NS (3)
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$mode = 'all';
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if ( count( $titles ) > 0 ) {
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$mode = 'revs';
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} elseif ( !is_null( $params['user'] ) ) {
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$mode = 'user';
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}
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if ( $mode == 'revs' || $mode == 'user' ) {
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// Ignore namespace and unique due to inability to know whether they were purposely set
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foreach ( [ 'from', 'to', 'prefix', /*'namespace', 'unique'*/ ] as $p ) {
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if ( !is_null( $params[$p] ) ) {
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$this->dieWithError( [ 'apierror-deletedrevs-param-not-1-2', $p ], 'badparams' );
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}
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}
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} else {
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foreach ( [ 'start', 'end' ] as $p ) {
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if ( !is_null( $params[$p] ) ) {
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$this->dieWithError( [ 'apierror-deletedrevs-param-not-3', $p ], 'badparams' );
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}
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}
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}
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if ( !is_null( $params['user'] ) && !is_null( $params['excludeuser'] ) ) {
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$this->dieWithError( 'user and excludeuser cannot be used together', 'badparams' );
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}
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$this->addTables( 'archive' );
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$this->addFields( [ 'ar_title', 'ar_namespace', 'ar_timestamp', 'ar_deleted', 'ar_id' ] );
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$this->addFieldsIf( 'ar_parent_id', $fld_parentid );
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$this->addFieldsIf( 'ar_rev_id', $fld_revid );
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if ( $fld_user || $fld_userid ) {
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$actorQuery = ActorMigration::newMigration()->getJoin( 'ar_user' );
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$this->addTables( $actorQuery['tables'] );
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$this->addFields( $actorQuery['fields'] );
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$this->addJoinConds( $actorQuery['joins'] );
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}
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$this->addFieldsIf( 'ar_minor_edit', $fld_minor );
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$this->addFieldsIf( 'ar_len', $fld_len );
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$this->addFieldsIf( 'ar_sha1', $fld_sha1 );
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if ( $fld_comment || $fld_parsedcomment ) {
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$commentQuery = $commentStore->getJoin( 'ar_comment' );
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$this->addTables( $commentQuery['tables'] );
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$this->addFields( $commentQuery['fields'] );
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$this->addJoinConds( $commentQuery['joins'] );
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}
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if ( $fld_tags ) {
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$this->addFields( [ 'ts_tags' => ChangeTags::makeTagSummarySubquery( 'archive' ) ] );
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}
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if ( !is_null( $params['tag'] ) ) {
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$this->addTables( 'change_tag' );
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$this->addJoinConds(
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[ 'change_tag' => [ 'INNER JOIN', [ 'ar_rev_id=ct_rev_id' ] ] ]
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);
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$changeTagDefStore = MediaWikiServices::getInstance()->getChangeTagDefStore();
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try {
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$this->addWhereFld( 'ct_tag_id', $changeTagDefStore->getId( $params['tag'] ) );
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} catch ( NameTableAccessException $exception ) {
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// Return nothing.
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$this->addWhere( '1=0' );
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}
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}
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if ( $fld_content ) {
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$this->addTables( 'text' );
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$this->addJoinConds(
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[ 'text' => [ 'LEFT JOIN', [ 'ar_text_id=old_id' ] ] ]
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);
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$this->addFields( [ 'ar_text_id', 'old_text', 'old_flags' ] );
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// This also means stricter restrictions
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$this->checkUserRightsAny( [ 'deletedtext', 'undelete' ] );
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}
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// Check limits
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$userMax = $fld_content ? ApiBase::LIMIT_SML1 : ApiBase::LIMIT_BIG1;
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$botMax = $fld_content ? ApiBase::LIMIT_SML2 : ApiBase::LIMIT_BIG2;
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$limit = $params['limit'];
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if ( $limit == 'max' ) {
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$limit = $this->getMain()->canApiHighLimits() ? $botMax : $userMax;
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$this->getResult()->addParsedLimit( $this->getModuleName(), $limit );
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}
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$this->validateLimit( 'limit', $limit, 1, $userMax, $botMax );
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if ( $fld_token ) {
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// Undelete tokens are identical for all pages, so we cache one here
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$token = $user->getEditToken( '', $this->getMain()->getRequest() );
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}
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$dir = $params['dir'];
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// We need a custom WHERE clause that matches all titles.
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if ( $mode == 'revs' ) {
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$lb = new LinkBatch( $titles );
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$where = $lb->constructSet( 'ar', $db );
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$this->addWhere( $where );
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} elseif ( $mode == 'all' ) {
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$this->addWhereFld( 'ar_namespace', $params['namespace'] );
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$from = $params['from'] === null
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? null
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: $this->titlePartToKey( $params['from'], $params['namespace'] );
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$to = $params['to'] === null
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? null
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: $this->titlePartToKey( $params['to'], $params['namespace'] );
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$this->addWhereRange( 'ar_title', $dir, $from, $to );
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if ( isset( $params['prefix'] ) ) {
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$this->addWhere( 'ar_title' . $db->buildLike(
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$this->titlePartToKey( $params['prefix'], $params['namespace'] ),
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$db->anyString() ) );
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}
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}
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if ( !is_null( $params['user'] ) ) {
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// Don't query by user ID here, it might be able to use the ar_usertext_timestamp index.
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$actorQuery = ActorMigration::newMigration()
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->getWhere( $db, 'ar_user', User::newFromName( $params['user'], false ), false );
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$this->addTables( $actorQuery['tables'] );
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$this->addJoinConds( $actorQuery['joins'] );
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$this->addWhere( $actorQuery['conds'] );
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} elseif ( !is_null( $params['excludeuser'] ) ) {
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// Here there's no chance of using ar_usertext_timestamp.
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$actorQuery = ActorMigration::newMigration()
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->getWhere( $db, 'ar_user', User::newFromName( $params['excludeuser'], false ) );
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$this->addTables( $actorQuery['tables'] );
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$this->addJoinConds( $actorQuery['joins'] );
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$this->addWhere( 'NOT(' . $actorQuery['conds'] . ')' );
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}
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if ( !is_null( $params['user'] ) || !is_null( $params['excludeuser'] ) ) {
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// Paranoia: avoid brute force searches (T19342)
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// (shouldn't be able to get here without 'deletedhistory', but
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// check it again just in case)
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if ( !$user->isAllowed( 'deletedhistory' ) ) {
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$bitmask = Revision::DELETED_USER;
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} elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
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$bitmask = Revision::DELETED_USER | Revision::DELETED_RESTRICTED;
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} else {
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$bitmask = 0;
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}
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if ( $bitmask ) {
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$this->addWhere( $db->bitAnd( 'ar_deleted', $bitmask ) . " != $bitmask" );
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}
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}
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if ( !is_null( $params['continue'] ) ) {
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$cont = explode( '|', $params['continue'] );
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$op = ( $dir == 'newer' ? '>' : '<' );
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if ( $mode == 'all' || $mode == 'revs' ) {
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$this->dieContinueUsageIf( count( $cont ) != 4 );
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$ns = intval( $cont[0] );
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$this->dieContinueUsageIf( strval( $ns ) !== $cont[0] );
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$title = $db->addQuotes( $cont[1] );
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$ts = $db->addQuotes( $db->timestamp( $cont[2] ) );
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$ar_id = (int)$cont[3];
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$this->dieContinueUsageIf( strval( $ar_id ) !== $cont[3] );
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$this->addWhere( "ar_namespace $op $ns OR " .
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"(ar_namespace = $ns AND " .
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"(ar_title $op $title OR " .
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"(ar_title = $title AND " .
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"(ar_timestamp $op $ts OR " .
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"(ar_timestamp = $ts AND " .
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"ar_id $op= $ar_id)))))" );
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} else {
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$this->dieContinueUsageIf( count( $cont ) != 2 );
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$ts = $db->addQuotes( $db->timestamp( $cont[0] ) );
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$ar_id = (int)$cont[1];
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$this->dieContinueUsageIf( strval( $ar_id ) !== $cont[1] );
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$this->addWhere( "ar_timestamp $op $ts OR " .
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"(ar_timestamp = $ts AND " .
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"ar_id $op= $ar_id)" );
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}
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}
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$this->addOption( 'LIMIT', $limit + 1 );
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if ( $mode == 'all' ) {
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if ( $params['unique'] ) {
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// @todo Does this work on non-MySQL?
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$this->addOption( 'GROUP BY', 'ar_title' );
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} else {
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$sort = ( $dir == 'newer' ? '' : ' DESC' );
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$this->addOption( 'ORDER BY', [
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'ar_title' . $sort,
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'ar_timestamp' . $sort,
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'ar_id' . $sort,
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] );
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}
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} else {
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if ( $mode == 'revs' ) {
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// Sort by ns and title in the same order as timestamp for efficiency
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$this->addWhereRange( 'ar_namespace', $dir, null, null );
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$this->addWhereRange( 'ar_title', $dir, null, null );
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}
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$this->addTimestampWhereRange( 'ar_timestamp', $dir, $params['start'], $params['end'] );
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// Include in ORDER BY for uniqueness
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$this->addWhereRange( 'ar_id', $dir, null, null );
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}
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$res = $this->select( __METHOD__ );
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$pageMap = []; // Maps ns&title to (fake) pageid
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$count = 0;
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$newPageID = 0;
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foreach ( $res as $row ) {
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if ( ++$count > $limit ) {
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// We've had enough
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if ( $mode == 'all' || $mode == 'revs' ) {
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$this->setContinueEnumParameter( 'continue',
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"$row->ar_namespace|$row->ar_title|$row->ar_timestamp|$row->ar_id"
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);
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} else {
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$this->setContinueEnumParameter( 'continue', "$row->ar_timestamp|$row->ar_id" );
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}
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break;
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}
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$rev = [];
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$anyHidden = false;
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$rev['timestamp'] = wfTimestamp( TS_ISO_8601, $row->ar_timestamp );
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if ( $fld_revid ) {
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$rev['revid'] = intval( $row->ar_rev_id );
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}
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if ( $fld_parentid && !is_null( $row->ar_parent_id ) ) {
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$rev['parentid'] = intval( $row->ar_parent_id );
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}
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if ( $fld_user || $fld_userid ) {
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if ( $row->ar_deleted & Revision::DELETED_USER ) {
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$rev['userhidden'] = true;
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$anyHidden = true;
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}
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if ( Revision::userCanBitfield( $row->ar_deleted, Revision::DELETED_USER, $user ) ) {
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if ( $fld_user ) {
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$rev['user'] = $row->ar_user_text;
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}
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if ( $fld_userid ) {
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$rev['userid'] = (int)$row->ar_user;
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}
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}
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}
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if ( $fld_comment || $fld_parsedcomment ) {
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if ( $row->ar_deleted & Revision::DELETED_COMMENT ) {
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$rev['commenthidden'] = true;
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$anyHidden = true;
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}
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if ( Revision::userCanBitfield( $row->ar_deleted, Revision::DELETED_COMMENT, $user ) ) {
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$comment = $commentStore->getComment( 'ar_comment', $row )->text;
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if ( $fld_comment ) {
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$rev['comment'] = $comment;
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}
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if ( $fld_parsedcomment ) {
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$title = Title::makeTitle( $row->ar_namespace, $row->ar_title );
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$rev['parsedcomment'] = Linker::formatComment( $comment, $title );
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}
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}
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}
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if ( $fld_minor ) {
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$rev['minor'] = $row->ar_minor_edit == 1;
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}
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if ( $fld_len ) {
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$rev['len'] = $row->ar_len;
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}
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if ( $fld_sha1 ) {
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if ( $row->ar_deleted & Revision::DELETED_TEXT ) {
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$rev['sha1hidden'] = true;
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$anyHidden = true;
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}
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if ( Revision::userCanBitfield( $row->ar_deleted, Revision::DELETED_TEXT, $user ) ) {
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if ( $row->ar_sha1 != '' ) {
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$rev['sha1'] = Wikimedia\base_convert( $row->ar_sha1, 36, 16, 40 );
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} else {
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$rev['sha1'] = '';
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}
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}
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}
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if ( $fld_content ) {
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if ( $row->ar_deleted & Revision::DELETED_TEXT ) {
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$rev['texthidden'] = true;
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$anyHidden = true;
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}
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if ( Revision::userCanBitfield( $row->ar_deleted, Revision::DELETED_TEXT, $user ) ) {
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ApiResult::setContentValue( $rev, 'text', Revision::getRevisionText( $row ) );
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}
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}
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if ( $fld_tags ) {
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if ( $row->ts_tags ) {
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$tags = explode( ',', $row->ts_tags );
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ApiResult::setIndexedTagName( $tags, 'tag' );
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$rev['tags'] = $tags;
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} else {
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$rev['tags'] = [];
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}
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}
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if ( $anyHidden && ( $row->ar_deleted & Revision::DELETED_RESTRICTED ) ) {
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$rev['suppressed'] = true;
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}
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if ( !isset( $pageMap[$row->ar_namespace][$row->ar_title] ) ) {
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$pageID = $newPageID++;
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$pageMap[$row->ar_namespace][$row->ar_title] = $pageID;
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$a['revisions'] = [ $rev ];
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ApiResult::setIndexedTagName( $a['revisions'], 'rev' );
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$title = Title::makeTitle( $row->ar_namespace, $row->ar_title );
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ApiQueryBase::addTitleInfo( $a, $title );
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if ( $fld_token ) {
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$a['token'] = $token;
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}
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$fit = $result->addValue( [ 'query', $this->getModuleName() ], $pageID, $a );
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} else {
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$pageID = $pageMap[$row->ar_namespace][$row->ar_title];
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$fit = $result->addValue(
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[ 'query', $this->getModuleName(), $pageID, 'revisions' ],
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null, $rev );
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}
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if ( !$fit ) {
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if ( $mode == 'all' || $mode == 'revs' ) {
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$this->setContinueEnumParameter( 'continue',
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"$row->ar_namespace|$row->ar_title|$row->ar_timestamp|$row->ar_id"
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);
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} else {
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$this->setContinueEnumParameter( 'continue', "$row->ar_timestamp|$row->ar_id" );
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}
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break;
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}
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}
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$result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'page' );
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}
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public function isDeprecated() {
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return true;
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}
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public function getAllowedParams() {
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return [
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'start' => [
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ApiBase::PARAM_TYPE => 'timestamp',
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ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 1, 2 ] ],
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],
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'end' => [
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ApiBase::PARAM_TYPE => 'timestamp',
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ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 1, 2 ] ],
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],
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'dir' => [
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ApiBase::PARAM_TYPE => [
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'newer',
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'older'
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],
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ApiBase::PARAM_DFLT => 'older',
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ApiBase::PARAM_HELP_MSG => 'api-help-param-direction',
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ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 1, 3 ] ],
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],
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'from' => [
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ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 3 ] ],
|
|
],
|
|
'to' => [
|
|
ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 3 ] ],
|
|
],
|
|
'prefix' => [
|
|
ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 3 ] ],
|
|
],
|
|
'unique' => [
|
|
ApiBase::PARAM_DFLT => false,
|
|
ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 3 ] ],
|
|
],
|
|
'namespace' => [
|
|
ApiBase::PARAM_TYPE => 'namespace',
|
|
ApiBase::PARAM_DFLT => NS_MAIN,
|
|
ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 3 ] ],
|
|
],
|
|
'tag' => null,
|
|
'user' => [
|
|
ApiBase::PARAM_TYPE => 'user'
|
|
],
|
|
'excludeuser' => [
|
|
ApiBase::PARAM_TYPE => 'user'
|
|
],
|
|
'prop' => [
|
|
ApiBase::PARAM_DFLT => 'user|comment',
|
|
ApiBase::PARAM_TYPE => [
|
|
'revid',
|
|
'parentid',
|
|
'user',
|
|
'userid',
|
|
'comment',
|
|
'parsedcomment',
|
|
'minor',
|
|
'len',
|
|
'sha1',
|
|
'content',
|
|
'token',
|
|
'tags'
|
|
],
|
|
ApiBase::PARAM_ISMULTI => true
|
|
],
|
|
'limit' => [
|
|
ApiBase::PARAM_DFLT => 10,
|
|
ApiBase::PARAM_TYPE => 'limit',
|
|
ApiBase::PARAM_MIN => 1,
|
|
ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
|
|
ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
|
|
],
|
|
'continue' => [
|
|
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
|
|
],
|
|
];
|
|
}
|
|
|
|
protected function getExamplesMessages() {
|
|
return [
|
|
'action=query&list=deletedrevs&titles=Main%20Page|Talk:Main%20Page&' .
|
|
'drprop=user|comment|content'
|
|
=> 'apihelp-query+deletedrevs-example-mode1',
|
|
'action=query&list=deletedrevs&druser=Bob&drlimit=50'
|
|
=> 'apihelp-query+deletedrevs-example-mode2',
|
|
'action=query&list=deletedrevs&drdir=newer&drlimit=50'
|
|
=> 'apihelp-query+deletedrevs-example-mode3-main',
|
|
'action=query&list=deletedrevs&drdir=newer&drlimit=50&drnamespace=1&drunique='
|
|
=> 'apihelp-query+deletedrevs-example-mode3-talk',
|
|
];
|
|
}
|
|
|
|
public function getHelpUrls() {
|
|
return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Deletedrevs';
|
|
}
|
|
}
|