wiki.techinc.nl/includes/api/ApiQueryInfo.php
Cindy Cicalese f6e1891c6f Use Authority and GroupPermissionLookup in Action API
Replaces calls directly to PermissionManager with calls to
the Authority object available from Context or the
GroupPermissionLookup service.

This patch does not address use of PermissionManager for
blocks.

Deprecations:
- ApiBase::checkUserRightsAny deprecated passing optional
User parameter
- ApiBase::checkTitleUserPermissions deprecated passing
LinkTarget as first parameter, takes PageIdentity instead

Bug: T271462
Bug: T271854
Change-Id: I5d7cac1c28a37e074750c46cda03283980a07fca
2021-02-23 14:31:14 +00:00

1118 lines
33 KiB
PHP

<?php
/**
* Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@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
*/
use MediaWiki\Cache\LinkBatchFactory;
use MediaWiki\Linker\LinkTarget;
use MediaWiki\ParamValidator\TypeDef\TitleDef;
use MediaWiki\Permissions\PermissionStatus;
/**
* A query module to show basic page information.
*
* @ingroup API
*/
class ApiQueryInfo extends ApiQueryBase {
/** @var Language */
private $contentLanguage;
/** @var LinkBatchFactory */
private $linkBatchFactory;
/** @var NamespaceInfo */
private $namespaceInfo;
/** @var TitleFactory */
private $titleFactory;
/** @var WatchedItemStore */
private $watchedItemStore;
private $fld_protection = false, $fld_talkid = false,
$fld_subjectid = false, $fld_url = false,
$fld_readable = false, $fld_watched = false,
$fld_watchers = false, $fld_visitingwatchers = false,
$fld_notificationtimestamp = false,
$fld_preload = false, $fld_displaytitle = false, $fld_varianttitles = false;
/**
* @var bool Whether to include link class information for the
* given page titles.
*/
private $fld_linkclasses = false;
private $params;
/** @var Title[] */
private $titles;
/** @var Title[] */
private $missing;
/** @var Title[] */
private $everything;
private $pageRestrictions, $pageIsRedir, $pageIsNew, $pageTouched,
$pageLatest, $pageLength;
private $protections, $restrictionTypes, $watched, $watchers, $visitingwatchers,
$notificationtimestamps, $talkids, $subjectids, $displaytitles, $variantTitles;
/**
* Watchlist expiries that corresponds with the $watched property. Keyed by namespace and title.
* @var array<int,array<string,string>>
*/
private $watchlistExpiries;
/**
* @var array<int,string[]> Mapping of page id to list of 'extra link
* classes' for the given page
*/
private $linkClasses;
private $showZeroWatchers = false;
private $tokenFunctions;
private $countTestedActions = 0;
/**
* @param ApiQuery $queryModule
* @param string $moduleName
* @param Language $contentLanguage
* @param LinkBatchFactory $linkBatchFactory
* @param NamespaceInfo $namespaceInfo
* @param TitleFactory $titleFactory
* @param WatchedItemStore $watchedItemStore
*/
public function __construct(
ApiQuery $queryModule,
$moduleName,
Language $contentLanguage,
LinkBatchFactory $linkBatchFactory,
NamespaceInfo $namespaceInfo,
TitleFactory $titleFactory,
WatchedItemStore $watchedItemStore
) {
parent::__construct( $queryModule, $moduleName, 'in' );
$this->contentLanguage = $contentLanguage;
$this->linkBatchFactory = $linkBatchFactory;
$this->namespaceInfo = $namespaceInfo;
$this->titleFactory = $titleFactory;
$this->watchedItemStore = $watchedItemStore;
}
/**
* @param ApiPageSet $pageSet
* @return void
*/
public function requestExtraData( $pageSet ) {
$pageSet->requestField( 'page_restrictions' );
// If the pageset is resolving redirects we won't get page_is_redirect.
// But we can't know for sure until the pageset is executed (revids may
// turn it off), so request it unconditionally.
$pageSet->requestField( 'page_is_redirect' );
$pageSet->requestField( 'page_is_new' );
$config = $this->getConfig();
$pageSet->requestField( 'page_touched' );
$pageSet->requestField( 'page_latest' );
$pageSet->requestField( 'page_len' );
$pageSet->requestField( 'page_content_model' );
if ( $config->get( 'PageLanguageUseDB' ) ) {
$pageSet->requestField( 'page_lang' );
}
}
/**
* Get an array mapping token names to their handler functions.
* The prototype for a token function is func( User $user )
* it should return a token or false (permission denied)
* @deprecated since 1.24
* @return array [ tokenname => function ]
*/
protected function getTokenFunctions() {
// Don't call the hooks twice
if ( isset( $this->tokenFunctions ) ) {
return $this->tokenFunctions;
}
// If we're in a mode that breaks the same-origin policy, no tokens can
// be obtained
if ( $this->lacksSameOriginSecurity() ) {
return [];
}
$this->tokenFunctions = [
'edit' => [ self::class, 'getEditToken' ],
'delete' => [ self::class, 'getDeleteToken' ],
'protect' => [ self::class, 'getProtectToken' ],
'move' => [ self::class, 'getMoveToken' ],
'block' => [ self::class, 'getBlockToken' ],
'unblock' => [ self::class, 'getUnblockToken' ],
'email' => [ self::class, 'getEmailToken' ],
'import' => [ self::class, 'getImportToken' ],
'watch' => [ self::class, 'getWatchToken' ],
];
return $this->tokenFunctions;
}
/** @var string[] */
protected static $cachedTokens = [];
/**
* @deprecated since 1.24
*/
public static function resetTokenCache() {
self::$cachedTokens = [];
}
/**
* Temporary method until the token methods are removed entirely
*
* Only for the tokens that all use User::getEditToken
*
* @param User $user
* @param string $right Right needed (edit/delete/block/etc.)
* @return string|false
*/
private static function getUserToken( User $user, string $right ) {
if ( !$user->isAllowed( $right ) ) {
return false;
}
// The token is always the same, let's exploit that
if ( !isset( self::$cachedTokens['edit'] ) ) {
self::$cachedTokens['edit'] = $user->getEditToken();
}
return self::$cachedTokens['edit'];
}
/**
* @deprecated since 1.24
* @internal
* @param User $user
*/
public static function getEditToken( User $user ) {
return self::getUserToken( $user, 'edit' );
}
/**
* @deprecated since 1.24
* @internal
* @param User $user
*/
public static function getDeleteToken( User $user ) {
return self::getUserToken( $user, 'delete' );
}
/**
* @deprecated since 1.24
* @internal
* @param User $user
*/
public static function getProtectToken( User $user ) {
return self::getUserToken( $user, 'protect' );
}
/**
* @deprecated since 1.24
* @internal
* @param User $user
*/
public static function getMoveToken( User $user ) {
return self::getUserToken( $user, 'move' );
}
/**
* @deprecated since 1.24
* @internal
* @param User $user
*/
public static function getBlockToken( User $user ) {
return self::getUserToken( $user, 'block' );
}
/**
* @deprecated since 1.24
* @internal
* @param User $user
*/
public static function getUnblockToken( User $user ) {
// Currently, this is exactly the same as the block token
return self::getBlockToken( $user );
}
/**
* @deprecated since 1.24
* @internal
* @param User $user
*/
public static function getEmailToken( User $user ) {
if ( !$user->canSendEmail() || $user->isBlockedFromEmailuser() ) {
return false;
}
// The token is always the same, let's exploit that
if ( !isset( self::$cachedTokens['email'] ) ) {
self::$cachedTokens['email'] = $user->getEditToken();
}
return self::$cachedTokens['email'];
}
/**
* @deprecated since 1.24
* @internal
* @param User $user
*/
public static function getImportToken( User $user ) {
if ( !$user->isAllowedAny( 'import', 'importupload' ) ) {
return false;
}
// The token is always the same, let's exploit that
if ( !isset( self::$cachedTokens['import'] ) ) {
self::$cachedTokens['import'] = $user->getEditToken();
}
return self::$cachedTokens['import'];
}
/**
* @deprecated since 1.24
* @internal
* @param User $user
*/
public static function getWatchToken( User $user ) {
if ( !$user->isRegistered() ) {
return false;
}
// The token is always the same, let's exploit that
if ( !isset( self::$cachedTokens['watch'] ) ) {
self::$cachedTokens['watch'] = $user->getEditToken( 'watch' );
}
return self::$cachedTokens['watch'];
}
/**
* @deprecated since 1.24
* @internal
* @param User $user
*/
public static function getOptionsToken( User $user ) {
if ( !$user->isRegistered() ) {
return false;
}
// The token is always the same, let's exploit that
if ( !isset( self::$cachedTokens['options'] ) ) {
self::$cachedTokens['options'] = $user->getEditToken();
}
return self::$cachedTokens['options'];
}
public function execute() {
$this->params = $this->extractRequestParams();
if ( $this->params['prop'] !== null ) {
$prop = array_flip( $this->params['prop'] );
$this->fld_protection = isset( $prop['protection'] );
$this->fld_watched = isset( $prop['watched'] );
$this->fld_watchers = isset( $prop['watchers'] );
$this->fld_visitingwatchers = isset( $prop['visitingwatchers'] );
$this->fld_notificationtimestamp = isset( $prop['notificationtimestamp'] );
$this->fld_talkid = isset( $prop['talkid'] );
$this->fld_subjectid = isset( $prop['subjectid'] );
$this->fld_url = isset( $prop['url'] );
$this->fld_readable = isset( $prop['readable'] );
$this->fld_preload = isset( $prop['preload'] );
$this->fld_displaytitle = isset( $prop['displaytitle'] );
$this->fld_varianttitles = isset( $prop['varianttitles'] );
$this->fld_linkclasses = isset( $prop['linkclasses'] );
}
$pageSet = $this->getPageSet();
$this->titles = $pageSet->getGoodTitles();
$this->missing = $pageSet->getMissingTitles();
$this->everything = $this->titles + $this->missing;
$result = $this->getResult();
uasort( $this->everything, [ Title::class, 'compare' ] );
if ( $this->params['continue'] !== null ) {
// Throw away any titles we're gonna skip so they don't
// clutter queries
$cont = explode( '|', $this->params['continue'] );
$this->dieContinueUsageIf( count( $cont ) != 2 );
$conttitle = $this->titleFactory->makeTitleSafe( $cont[0], $cont[1] );
foreach ( $this->everything as $pageid => $title ) {
if ( Title::compare( $title, $conttitle ) >= 0 ) {
break;
}
unset( $this->titles[$pageid] );
unset( $this->missing[$pageid] );
unset( $this->everything[$pageid] );
}
}
$this->pageRestrictions = $pageSet->getCustomField( 'page_restrictions' );
// when resolving redirects, no page will have this field
$this->pageIsRedir = !$pageSet->isResolvingRedirects()
? $pageSet->getCustomField( 'page_is_redirect' )
: [];
$this->pageIsNew = $pageSet->getCustomField( 'page_is_new' );
$this->pageTouched = $pageSet->getCustomField( 'page_touched' );
$this->pageLatest = $pageSet->getCustomField( 'page_latest' );
$this->pageLength = $pageSet->getCustomField( 'page_len' );
// Get protection info if requested
if ( $this->fld_protection ) {
$this->getProtectionInfo();
}
if ( $this->fld_watched || $this->fld_notificationtimestamp ) {
$this->getWatchedInfo();
}
if ( $this->fld_watchers ) {
$this->getWatcherInfo();
}
if ( $this->fld_visitingwatchers ) {
$this->getVisitingWatcherInfo();
}
// Run the talkid/subjectid query if requested
if ( $this->fld_talkid || $this->fld_subjectid ) {
$this->getTSIDs();
}
if ( $this->fld_displaytitle ) {
$this->getDisplayTitle();
}
if ( $this->fld_varianttitles ) {
$this->getVariantTitles();
}
if ( $this->fld_linkclasses ) {
$this->getLinkClasses( $this->params['linkcontext'] );
}
/** @var Title $title */
foreach ( $this->everything as $pageid => $title ) {
$pageInfo = $this->extractPageInfo( $pageid, $title );
$fit = $pageInfo !== null && $result->addValue( [
'query',
'pages'
], $pageid, $pageInfo );
if ( !$fit ) {
$this->setContinueEnumParameter( 'continue',
$title->getNamespace() . '|' .
$title->getText() );
break;
}
}
}
/**
* Get a result array with information about a title
* @param int $pageid Page ID (negative for missing titles)
* @param Title $title
* @return array|null
*/
private function extractPageInfo( $pageid, $title ) {
$pageInfo = [];
// $title->exists() needs pageid, which is not set for all title objects
$titleExists = $pageid > 0;
$ns = $title->getNamespace();
$dbkey = $title->getDBkey();
$pageInfo['contentmodel'] = $title->getContentModel();
$pageLanguage = $title->getPageLanguage();
$pageInfo['pagelanguage'] = $pageLanguage->getCode();
$pageInfo['pagelanguagehtmlcode'] = $pageLanguage->getHtmlCode();
$pageInfo['pagelanguagedir'] = $pageLanguage->getDir();
if ( $titleExists ) {
$pageInfo['touched'] = wfTimestamp( TS_ISO_8601, $this->pageTouched[$pageid] );
$pageInfo['lastrevid'] = (int)$this->pageLatest[$pageid];
$pageInfo['length'] = (int)$this->pageLength[$pageid];
if ( isset( $this->pageIsRedir[$pageid] ) && $this->pageIsRedir[$pageid] ) {
$pageInfo['redirect'] = true;
}
if ( $this->pageIsNew[$pageid] ) {
$pageInfo['new'] = true;
}
}
if ( $this->params['token'] !== null ) {
$tokenFunctions = $this->getTokenFunctions();
$pageInfo['starttimestamp'] = wfTimestamp( TS_ISO_8601, time() );
foreach ( $this->params['token'] as $t ) {
$val = call_user_func( $tokenFunctions[$t], $this->getUser() );
if ( $val === false ) {
$this->addWarning( [ 'apiwarn-tokennotallowed', $t ] );
} else {
$pageInfo[$t . 'token'] = $val;
}
}
}
if ( $this->fld_protection ) {
$pageInfo['protection'] = [];
if ( isset( $this->protections[$ns][$dbkey] ) ) {
$pageInfo['protection'] =
$this->protections[$ns][$dbkey];
}
ApiResult::setIndexedTagName( $pageInfo['protection'], 'pr' );
$pageInfo['restrictiontypes'] = [];
if ( isset( $this->restrictionTypes[$ns][$dbkey] ) ) {
$pageInfo['restrictiontypes'] =
$this->restrictionTypes[$ns][$dbkey];
}
ApiResult::setIndexedTagName( $pageInfo['restrictiontypes'], 'rt' );
}
if ( $this->fld_watched ) {
$pageInfo['watched'] = false;
if ( isset( $this->watched[$ns][$dbkey] ) ) {
$pageInfo['watched'] = $this->watched[$ns][$dbkey];
}
if ( isset( $this->watchlistExpiries[$ns][$dbkey] ) ) {
$pageInfo['watchlistexpiry'] = $this->watchlistExpiries[$ns][$dbkey];
}
}
if ( $this->fld_watchers ) {
if ( $this->watchers !== null && $this->watchers[$ns][$dbkey] !== 0 ) {
$pageInfo['watchers'] = $this->watchers[$ns][$dbkey];
} elseif ( $this->showZeroWatchers ) {
$pageInfo['watchers'] = 0;
}
}
if ( $this->fld_visitingwatchers ) {
if ( $this->visitingwatchers !== null && $this->visitingwatchers[$ns][$dbkey] !== 0 ) {
$pageInfo['visitingwatchers'] = $this->visitingwatchers[$ns][$dbkey];
} elseif ( $this->showZeroWatchers ) {
$pageInfo['visitingwatchers'] = 0;
}
}
if ( $this->fld_notificationtimestamp ) {
$pageInfo['notificationtimestamp'] = '';
if ( isset( $this->notificationtimestamps[$ns][$dbkey] ) ) {
$pageInfo['notificationtimestamp'] =
wfTimestamp( TS_ISO_8601, $this->notificationtimestamps[$ns][$dbkey] );
}
}
if ( $this->fld_talkid && isset( $this->talkids[$ns][$dbkey] ) ) {
$pageInfo['talkid'] = $this->talkids[$ns][$dbkey];
}
if ( $this->fld_subjectid && isset( $this->subjectids[$ns][$dbkey] ) ) {
$pageInfo['subjectid'] = $this->subjectids[$ns][$dbkey];
}
if ( $this->fld_url ) {
$pageInfo['fullurl'] = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
$pageInfo['editurl'] = wfExpandUrl( $title->getFullURL( 'action=edit' ), PROTO_CURRENT );
$pageInfo['canonicalurl'] = wfExpandUrl( $title->getFullURL(), PROTO_CANONICAL );
}
if ( $this->fld_readable ) {
$pageInfo['readable'] = $this->getAuthority()->definitelyCan( 'read', $title );
}
if ( $this->fld_preload ) {
if ( $titleExists ) {
$pageInfo['preload'] = '';
} else {
$text = null;
$this->getHookRunner()->onEditFormPreloadText( $text, $title );
$pageInfo['preload'] = $text;
}
}
if ( $this->fld_displaytitle ) {
if ( isset( $this->displaytitles[$pageid] ) ) {
$pageInfo['displaytitle'] = $this->displaytitles[$pageid];
} else {
$pageInfo['displaytitle'] = $title->getPrefixedText();
}
}
if ( $this->fld_varianttitles && isset( $this->variantTitles[$pageid] ) ) {
$pageInfo['varianttitles'] = $this->variantTitles[$pageid];
}
if ( $this->fld_linkclasses && isset( $this->linkClasses[$pageid] ) ) {
$pageInfo['linkclasses'] = $this->linkClasses[$pageid];
}
if ( $this->params['testactions'] ) {
$limit = $this->getMain()->canApiHighLimits() ? self::LIMIT_SML2 : self::LIMIT_SML1;
if ( $this->countTestedActions >= $limit ) {
return null; // force a continuation
}
$detailLevel = $this->params['testactionsdetail'];
$errorFormatter = $this->getErrorFormatter();
if ( $errorFormatter->getFormat() === 'bc' ) {
// Eew, no. Use a more modern format here.
$errorFormatter = $errorFormatter->newWithFormat( 'plaintext' );
}
$pageInfo['actions'] = [];
foreach ( $this->params['testactions'] as $action ) {
$this->countTestedActions++;
if ( $detailLevel === 'boolean' ) {
$pageInfo['actions'][$action] = $this->getAuthority()->authorizeRead( $action, $title );
} else {
$status = new PermissionStatus();
if ( $detailLevel === 'quick' ) {
$this->getAuthority()->probablyCan( $action, $title, $status );
} else {
$this->getAuthority()->definitelyCan( $action, $title, $status );
}
$this->addBlockInfoToStatus( $status );
$pageInfo['actions'][$action] = $errorFormatter->arrayFromStatus( $status );
}
}
}
return $pageInfo;
}
/**
* Get information about protections and put it in $protections
*/
private function getProtectionInfo() {
$this->protections = [];
$db = $this->getDB();
// Get normal protections for existing titles
if ( count( $this->titles ) ) {
$this->resetQueryParams();
$this->addTables( 'page_restrictions' );
$this->addFields( [ 'pr_page', 'pr_type', 'pr_level',
'pr_expiry', 'pr_cascade' ] );
$this->addWhereFld( 'pr_page', array_keys( $this->titles ) );
$res = $this->select( __METHOD__ );
foreach ( $res as $row ) {
/** @var Title $title */
$title = $this->titles[$row->pr_page];
$a = [
'type' => $row->pr_type,
'level' => $row->pr_level,
'expiry' => ApiResult::formatExpiry( $row->pr_expiry )
];
if ( $row->pr_cascade ) {
$a['cascade'] = true;
}
$this->protections[$title->getNamespace()][$title->getDBkey()][] = $a;
}
// Also check old restrictions
foreach ( $this->titles as $pageId => $title ) {
if ( $this->pageRestrictions[$pageId] ) {
$namespace = $title->getNamespace();
$dbKey = $title->getDBkey();
$restrictions = explode( ':', trim( $this->pageRestrictions[$pageId] ) );
foreach ( $restrictions as $restrict ) {
$temp = explode( '=', trim( $restrict ) );
if ( count( $temp ) == 1 ) {
// old old format should be treated as edit/move restriction
$restriction = trim( $temp[0] );
if ( $restriction == '' ) {
continue;
}
$this->protections[$namespace][$dbKey][] = [
'type' => 'edit',
'level' => $restriction,
'expiry' => 'infinity',
];
$this->protections[$namespace][$dbKey][] = [
'type' => 'move',
'level' => $restriction,
'expiry' => 'infinity',
];
} else {
$restriction = trim( $temp[1] );
if ( $restriction == '' ) {
continue;
}
$this->protections[$namespace][$dbKey][] = [
'type' => $temp[0],
'level' => $restriction,
'expiry' => 'infinity',
];
}
}
}
}
}
// Get protections for missing titles
if ( count( $this->missing ) ) {
$this->resetQueryParams();
$lb = $this->linkBatchFactory->newLinkBatch( $this->missing );
$this->addTables( 'protected_titles' );
$this->addFields( [ 'pt_title', 'pt_namespace', 'pt_create_perm', 'pt_expiry' ] );
$this->addWhere( $lb->constructSet( 'pt', $db ) );
$res = $this->select( __METHOD__ );
foreach ( $res as $row ) {
$this->protections[$row->pt_namespace][$row->pt_title][] = [
'type' => 'create',
'level' => $row->pt_create_perm,
'expiry' => ApiResult::formatExpiry( $row->pt_expiry )
];
}
}
// Separate good and missing titles into files and other pages
// and populate $this->restrictionTypes
$images = $others = [];
foreach ( $this->everything as $title ) {
if ( $title->getNamespace() === NS_FILE ) {
$images[] = $title->getDBkey();
} else {
$others[] = $title;
}
// Applicable protection types
$this->restrictionTypes[$title->getNamespace()][$title->getDBkey()] =
array_values( $title->getRestrictionTypes() );
}
if ( count( $others ) ) {
// Non-images: check templatelinks
$lb = $this->linkBatchFactory->newLinkBatch( $others );
$this->resetQueryParams();
$this->addTables( [ 'page_restrictions', 'page', 'templatelinks' ] );
$this->addFields( [ 'pr_type', 'pr_level', 'pr_expiry',
'page_title', 'page_namespace',
'tl_title', 'tl_namespace' ] );
$this->addWhere( $lb->constructSet( 'tl', $db ) );
$this->addWhere( 'pr_page = page_id' );
$this->addWhere( 'pr_page = tl_from' );
$this->addWhereFld( 'pr_cascade', 1 );
$res = $this->select( __METHOD__ );
foreach ( $res as $row ) {
$source = $this->titleFactory->makeTitle( $row->page_namespace, $row->page_title );
$this->protections[$row->tl_namespace][$row->tl_title][] = [
'type' => $row->pr_type,
'level' => $row->pr_level,
'expiry' => ApiResult::formatExpiry( $row->pr_expiry ),
'source' => $source->getPrefixedText()
];
}
}
if ( count( $images ) ) {
// Images: check imagelinks
$this->resetQueryParams();
$this->addTables( [ 'page_restrictions', 'page', 'imagelinks' ] );
$this->addFields( [ 'pr_type', 'pr_level', 'pr_expiry',
'page_title', 'page_namespace', 'il_to' ] );
$this->addWhere( 'pr_page = page_id' );
$this->addWhere( 'pr_page = il_from' );
$this->addWhereFld( 'pr_cascade', 1 );
$this->addWhereFld( 'il_to', $images );
$res = $this->select( __METHOD__ );
foreach ( $res as $row ) {
$source = $this->titleFactory->makeTitle( $row->page_namespace, $row->page_title );
$this->protections[NS_FILE][$row->il_to][] = [
'type' => $row->pr_type,
'level' => $row->pr_level,
'expiry' => ApiResult::formatExpiry( $row->pr_expiry ),
'source' => $source->getPrefixedText()
];
}
}
}
/**
* Get talk page IDs (if requested) and subject page IDs (if requested)
* and put them in $talkids and $subjectids
*/
private function getTSIDs() {
$getTitles = $this->talkids = $this->subjectids = [];
$nsInfo = $this->namespaceInfo;
/** @var Title $t */
foreach ( $this->everything as $t ) {
if ( $nsInfo->isTalk( $t->getNamespace() ) ) {
if ( $this->fld_subjectid ) {
$getTitles[] = $t->getSubjectPage();
}
} elseif ( $this->fld_talkid ) {
$getTitles[] = $t->getTalkPage();
}
}
if ( $getTitles === [] ) {
return;
}
$db = $this->getDB();
// Construct a custom WHERE clause that matches
// all titles in $getTitles
$lb = $this->linkBatchFactory->newLinkBatch( $getTitles );
$this->resetQueryParams();
$this->addTables( 'page' );
$this->addFields( [ 'page_title', 'page_namespace', 'page_id' ] );
$this->addWhere( $lb->constructSet( 'page', $db ) );
$res = $this->select( __METHOD__ );
foreach ( $res as $row ) {
if ( $nsInfo->isTalk( $row->page_namespace ) ) {
$this->talkids[$nsInfo->getSubject( $row->page_namespace )][$row->page_title] =
(int)( $row->page_id );
} else {
$this->subjectids[$nsInfo->getTalk( $row->page_namespace )][$row->page_title] =
(int)( $row->page_id );
}
}
}
private function getDisplayTitle() {
$this->displaytitles = [];
$pageIds = array_keys( $this->titles );
if ( $pageIds === [] ) {
return;
}
$this->resetQueryParams();
$this->addTables( 'page_props' );
$this->addFields( [ 'pp_page', 'pp_value' ] );
$this->addWhereFld( 'pp_page', $pageIds );
$this->addWhereFld( 'pp_propname', 'displaytitle' );
$res = $this->select( __METHOD__ );
foreach ( $res as $row ) {
$this->displaytitles[$row->pp_page] = $row->pp_value;
}
}
/**
* Fetch the set of extra link classes associated with links to the
* set of titles ("link colours"), as they would appear on the
* given context page.
* @param ?LinkTarget $context_title The page context in which link
* colors are determined.
*/
private function getLinkClasses( ?LinkTarget $context_title = null ) {
if ( $this->titles === [] ) {
return;
}
// For compatibility with legacy GetLinkColours hook:
// $pagemap maps from page id to title (as prefixed db key)
// $classes maps from title (prefixed db key) to a space-separated
// list of link classes ("link colours").
// The hook should not modify $pagemap, and should only append to
// $classes (being careful to maintain space separation).
$classes = [];
$pagemap = [];
foreach ( $this->titles as $pageId => $title ) {
$pdbk = $title->getPrefixedDBkey();
$pagemap[$pageId] = $pdbk;
$classes[$pdbk] = $title->isRedirect() ? 'mw-redirect' : '';
}
// legacy hook requires a real Title, not a LinkTarget
$context_title = $this->titleFactory->newFromLinkTarget(
$context_title ?? $this->titleFactory->newMainPage()
);
$this->getHookRunner()->onGetLinkColours(
$pagemap, $classes, $context_title
);
// This API class expects the class list to be:
// (a) indexed by pageid, not title, and
// (b) a proper array of strings (possibly zero-length),
// not a single space-separated string (possibly the empty string)
$this->linkClasses = [];
foreach ( $this->titles as $pageId => $title ) {
$pdbk = $title->getPrefixedDBkey();
$this->linkClasses[$pageId] = preg_split(
'/\s+/', $classes[$pdbk] ?? '', -1, PREG_SPLIT_NO_EMPTY
);
}
}
private function getVariantTitles() {
if ( $this->titles === [] ) {
return;
}
$this->variantTitles = [];
foreach ( $this->titles as $pageId => $t ) {
$this->variantTitles[$pageId] = isset( $this->displaytitles[$pageId] )
? $this->getAllVariants( $this->displaytitles[$pageId] )
: $this->getAllVariants( $t->getText(), $t->getNamespace() );
}
}
private function getAllVariants( $text, $ns = NS_MAIN ) {
$result = [];
$contLang = $this->contentLanguage;
foreach ( $contLang->getVariants() as $variant ) {
$convertTitle = $contLang->autoConvert( $text, $variant );
if ( $ns !== NS_MAIN ) {
$convertNs = $contLang->convertNamespace( $ns, $variant );
$convertTitle = $convertNs . ':' . $convertTitle;
}
$result[$variant] = $convertTitle;
}
return $result;
}
/**
* Get information about watched status and put it in $this->watched
* and $this->notificationtimestamps
*/
private function getWatchedInfo() {
$user = $this->getUser();
if ( $user->isAnon() || count( $this->everything ) == 0
|| !$this->getAuthority()->isAllowed( 'viewmywatchlist' )
) {
return;
}
$this->watched = [];
$this->watchlistExpiries = [];
$this->notificationtimestamps = [];
/** @var WatchedItem[] $items */
$items = $this->watchedItemStore->loadWatchedItemsBatch( $user, $this->everything );
foreach ( $items as $item ) {
$nsId = $item->getLinkTarget()->getNamespace();
$dbKey = $item->getLinkTarget()->getDBkey();
if ( $this->fld_watched ) {
$this->watched[$nsId][$dbKey] = true;
$expiry = $item->getExpiry( TS_ISO_8601 );
if ( $expiry ) {
$this->watchlistExpiries[$nsId][$dbKey] = $expiry;
}
}
if ( $this->fld_notificationtimestamp ) {
$this->notificationtimestamps[$nsId][$dbKey] = $item->getNotificationTimestamp();
}
}
}
/**
* Get the count of watchers and put it in $this->watchers
*/
private function getWatcherInfo() {
if ( count( $this->everything ) == 0 ) {
return;
}
$canUnwatchedpages = $this->getAuthority()->isAllowed( 'unwatchedpages' );
$unwatchedPageThreshold = $this->getConfig()->get( 'UnwatchedPageThreshold' );
if ( !$canUnwatchedpages && !is_int( $unwatchedPageThreshold ) ) {
return;
}
$this->showZeroWatchers = $canUnwatchedpages;
$countOptions = [];
if ( !$canUnwatchedpages ) {
$countOptions['minimumWatchers'] = $unwatchedPageThreshold;
}
$this->watchers = $this->watchedItemStore->countWatchersMultiple(
$this->everything,
$countOptions
);
}
/**
* Get the count of watchers who have visited recent edits and put it in
* $this->visitingwatchers
*
* Based on InfoAction::pageCounts
*/
private function getVisitingWatcherInfo() {
$config = $this->getConfig();
$db = $this->getDB();
$canUnwatchedpages = $this->getAuthority()->isAllowed( 'unwatchedpages' );
$unwatchedPageThreshold = $config->get( 'UnwatchedPageThreshold' );
if ( !$canUnwatchedpages && !is_int( $unwatchedPageThreshold ) ) {
return;
}
$this->showZeroWatchers = $canUnwatchedpages;
$titlesWithThresholds = [];
if ( $this->titles ) {
$lb = $this->linkBatchFactory->newLinkBatch( $this->titles );
// Fetch last edit timestamps for pages
$this->resetQueryParams();
$this->addTables( [ 'page', 'revision' ] );
$this->addFields( [ 'page_namespace', 'page_title', 'rev_timestamp' ] );
$this->addWhere( [
'page_latest = rev_id',
$lb->constructSet( 'page', $db ),
] );
$this->addOption( 'GROUP BY', [ 'page_namespace', 'page_title' ] );
$timestampRes = $this->select( __METHOD__ );
$age = $config->get( 'WatchersMaxAge' );
$timestamps = [];
foreach ( $timestampRes as $row ) {
$revTimestamp = wfTimestamp( TS_UNIX, (int)$row->rev_timestamp );
$timestamps[$row->page_namespace][$row->page_title] = (int)$revTimestamp - $age;
}
$titlesWithThresholds = array_map(
static function ( LinkTarget $target ) use ( $timestamps ) {
return [
$target, $timestamps[$target->getNamespace()][$target->getDBkey()]
];
},
$this->titles
);
}
if ( $this->missing ) {
$titlesWithThresholds = array_merge(
$titlesWithThresholds,
array_map(
static function ( LinkTarget $target ) {
return [ $target, null ];
},
$this->missing
)
);
}
$this->visitingwatchers = $this->watchedItemStore->countVisitingWatchersMultiple(
$titlesWithThresholds,
!$canUnwatchedpages ? $unwatchedPageThreshold : null
);
}
public function getCacheMode( $params ) {
// Other props depend on something about the current user
$publicProps = [
'protection',
'talkid',
'subjectid',
'url',
'preload',
'displaytitle',
'varianttitles',
];
if ( array_diff( (array)$params['prop'], $publicProps ) ) {
return 'private';
}
// testactions also depends on the current user
if ( $params['testactions'] ) {
return 'private';
}
if ( $params['token'] !== null ) {
return 'private';
}
return 'public';
}
public function getAllowedParams() {
return [
'prop' => [
ApiBase::PARAM_ISMULTI => true,
ApiBase::PARAM_TYPE => [
'protection',
'talkid',
'watched', # private
'watchers', # private
'visitingwatchers', # private
'notificationtimestamp', # private
'subjectid',
'url',
'readable', # private
'preload',
'displaytitle',
'varianttitles',
'linkclasses', # private: stub length (and possibly hook colors)
// If you add more properties here, please consider whether they
// need to be added to getCacheMode()
],
ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
ApiBase::PARAM_DEPRECATED_VALUES => [
'readable' => true, // Since 1.32
],
],
'linkcontext' => [
ApiBase::PARAM_TYPE => 'title',
ApiBase::PARAM_DFLT => $this->titleFactory->newMainPage()->getPrefixedText(),
TitleDef::PARAM_RETURN_OBJECT => true,
],
'testactions' => [
ApiBase::PARAM_TYPE => 'string',
ApiBase::PARAM_ISMULTI => true,
],
'testactionsdetail' => [
ApiBase::PARAM_TYPE => [ 'boolean', 'full', 'quick' ],
ApiBase::PARAM_DFLT => 'boolean',
ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
],
'token' => [
ApiBase::PARAM_DEPRECATED => true,
ApiBase::PARAM_ISMULTI => true,
ApiBase::PARAM_TYPE => array_keys( $this->getTokenFunctions() )
],
'continue' => [
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
],
];
}
protected function getExamplesMessages() {
return [
'action=query&prop=info&titles=Main%20Page'
=> 'apihelp-query+info-example-simple',
'action=query&prop=info&inprop=protection&titles=Main%20Page'
=> 'apihelp-query+info-example-protection',
];
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Info';
}
}