]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - includes/api/ApiQueryInfo.php
MediaWiki 1.30.2
[autoinstallsdev/mediawiki.git] / includes / api / ApiQueryInfo.php
index 8ffb2e22b8c104c4ee65a440140f11dd0e666539..bff19780f686f7ea5b9a8fb128f8f83322ef23f5 100644 (file)
@@ -1,10 +1,10 @@
 <?php
 /**
- * API for MediaWiki 1.8+
+ *
  *
  * Created on Sep 25, 2006
  *
- * Copyright © 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
+ * 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
  *
  * @file
  */
-
-if ( !defined( 'MEDIAWIKI' ) ) {
-       // Eclipse helper - will be ignored in production
-       require_once( 'ApiQueryBase.php' );
-}
+use MediaWiki\MediaWikiServices;
+use MediaWiki\Linker\LinkTarget;
 
 /**
  * A query module to show basic page information.
@@ -39,33 +36,63 @@ class ApiQueryInfo extends ApiQueryBase {
        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;
 
+       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;
+       private $showZeroWatchers = false;
+
        private $tokenFunctions;
 
-       public function __construct( $query, $moduleName ) {
+       private $countTestedActions = 0;
+
+       public function __construct( ApiQuery $query, $moduleName ) {
                parent::__construct( $query, $moduleName, 'in' );
        }
 
+       /**
+        * @param ApiPageSet $pageSet
+        * @return void
+        */
        public function requestExtraData( $pageSet ) {
-               global $wgDisableCounters;
-
                $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' );
                $pageSet->requestField( 'page_is_new' );
-               if ( !$wgDisableCounters ) {
-                       $pageSet->requestField( 'page_counter' );
-               }
+               $config = $this->getConfig();
                $pageSet->requestField( 'page_touched' );
                $pageSet->requestField( 'page_latest' );
                $pageSet->requestField( 'page_len' );
+               if ( $config->get( 'ContentHandlerUseDB' ) ) {
+                       $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($pageid, $title)
         * it should return a token or false (permission denied)
-        * @return array(tokenname => function)
+        * @deprecated since 1.24
+        * @return array [ tokenname => function ]
         */
        protected function getTokenFunctions() {
                // Don't call the hooks twice
@@ -73,25 +100,40 @@ class ApiQueryInfo extends ApiQueryBase {
                        return $this->tokenFunctions;
                }
 
-               // If we're in JSON callback mode, no tokens can be obtained
-               if ( !is_null( $this->getMain()->getRequest()->getVal( 'callback' ) ) ) {
-                       return array();
+               // If we're in a mode that breaks the same-origin policy, no tokens can
+               // be obtained
+               if ( $this->lacksSameOriginSecurity() ) {
+                       return [];
                }
 
-               $this->tokenFunctions = array(
-                       'edit' => array( 'ApiQueryInfo', 'getEditToken' ),
-                       'delete' => array( 'ApiQueryInfo', 'getDeleteToken' ),
-                       'protect' => array( 'ApiQueryInfo', 'getProtectToken' ),
-                       'move' => array( 'ApiQueryInfo', 'getMoveToken' ),
-                       'block' => array( 'ApiQueryInfo', 'getBlockToken' ),
-                       'unblock' => array( 'ApiQueryInfo', 'getUnblockToken' ),
-                       'email' => array( 'ApiQueryInfo', 'getEmailToken' ),
-                       'import' => array( 'ApiQueryInfo', 'getImportToken' ),
-               );
-               wfRunHooks( 'APIQueryInfoTokens', array( &$this->tokenFunctions ) );
+               $this->tokenFunctions = [
+                       'edit' => [ 'ApiQueryInfo', 'getEditToken' ],
+                       'delete' => [ 'ApiQueryInfo', 'getDeleteToken' ],
+                       'protect' => [ 'ApiQueryInfo', 'getProtectToken' ],
+                       'move' => [ 'ApiQueryInfo', 'getMoveToken' ],
+                       'block' => [ 'ApiQueryInfo', 'getBlockToken' ],
+                       'unblock' => [ 'ApiQueryInfo', 'getUnblockToken' ],
+                       'email' => [ 'ApiQueryInfo', 'getEmailToken' ],
+                       'import' => [ 'ApiQueryInfo', 'getImportToken' ],
+                       'watch' => [ 'ApiQueryInfo', 'getWatchToken' ],
+               ];
+               Hooks::run( 'APIQueryInfoTokens', [ &$this->tokenFunctions ] );
+
                return $this->tokenFunctions;
        }
 
+       static protected $cachedTokens = [];
+
+       /**
+        * @deprecated since 1.24
+        */
+       public static function resetTokenCache() {
+               self::$cachedTokens = [];
+       }
+
+       /**
+        * @deprecated since 1.24
+        */
        public static function getEditToken( $pageid, $title ) {
                // We could check for $title->userCan('edit') here,
                // but that's too expensive for this purpose
@@ -101,109 +143,156 @@ class ApiQueryInfo extends ApiQueryBase {
                        return false;
                }
 
-               // The edit token is always the same, let's exploit that
-               static $cachedEditToken = null;
-               if ( !is_null( $cachedEditToken ) ) {
-                       return $cachedEditToken;
+               // The token is always the same, let's exploit that
+               if ( !isset( self::$cachedTokens['edit'] ) ) {
+                       self::$cachedTokens['edit'] = $wgUser->getEditToken();
                }
 
-               $cachedEditToken = $wgUser->editToken();
-               return $cachedEditToken;
+               return self::$cachedTokens['edit'];
        }
 
+       /**
+        * @deprecated since 1.24
+        */
        public static function getDeleteToken( $pageid, $title ) {
                global $wgUser;
                if ( !$wgUser->isAllowed( 'delete' ) ) {
                        return false;
                }
 
-               static $cachedDeleteToken = null;
-               if ( !is_null( $cachedDeleteToken ) ) {
-                       return $cachedDeleteToken;
+               // The token is always the same, let's exploit that
+               if ( !isset( self::$cachedTokens['delete'] ) ) {
+                       self::$cachedTokens['delete'] = $wgUser->getEditToken();
                }
 
-               $cachedDeleteToken = $wgUser->editToken();
-               return $cachedDeleteToken;
+               return self::$cachedTokens['delete'];
        }
 
+       /**
+        * @deprecated since 1.24
+        */
        public static function getProtectToken( $pageid, $title ) {
                global $wgUser;
                if ( !$wgUser->isAllowed( 'protect' ) ) {
                        return false;
                }
 
-               static $cachedProtectToken = null;
-               if ( !is_null( $cachedProtectToken ) ) {
-                       return $cachedProtectToken;
+               // The token is always the same, let's exploit that
+               if ( !isset( self::$cachedTokens['protect'] ) ) {
+                       self::$cachedTokens['protect'] = $wgUser->getEditToken();
                }
 
-               $cachedProtectToken = $wgUser->editToken();
-               return $cachedProtectToken;
+               return self::$cachedTokens['protect'];
        }
 
+       /**
+        * @deprecated since 1.24
+        */
        public static function getMoveToken( $pageid, $title ) {
                global $wgUser;
                if ( !$wgUser->isAllowed( 'move' ) ) {
                        return false;
                }
 
-               static $cachedMoveToken = null;
-               if ( !is_null( $cachedMoveToken ) ) {
-                       return $cachedMoveToken;
+               // The token is always the same, let's exploit that
+               if ( !isset( self::$cachedTokens['move'] ) ) {
+                       self::$cachedTokens['move'] = $wgUser->getEditToken();
                }
 
-               $cachedMoveToken = $wgUser->editToken();
-               return $cachedMoveToken;
+               return self::$cachedTokens['move'];
        }
 
+       /**
+        * @deprecated since 1.24
+        */
        public static function getBlockToken( $pageid, $title ) {
                global $wgUser;
                if ( !$wgUser->isAllowed( 'block' ) ) {
                        return false;
                }
 
-               static $cachedBlockToken = null;
-               if ( !is_null( $cachedBlockToken ) ) {
-                       return $cachedBlockToken;
+               // The token is always the same, let's exploit that
+               if ( !isset( self::$cachedTokens['block'] ) ) {
+                       self::$cachedTokens['block'] = $wgUser->getEditToken();
                }
 
-               $cachedBlockToken = $wgUser->editToken();
-               return $cachedBlockToken;
+               return self::$cachedTokens['block'];
        }
 
+       /**
+        * @deprecated since 1.24
+        */
        public static function getUnblockToken( $pageid, $title ) {
                // Currently, this is exactly the same as the block token
                return self::getBlockToken( $pageid, $title );
        }
 
+       /**
+        * @deprecated since 1.24
+        */
        public static function getEmailToken( $pageid, $title ) {
                global $wgUser;
-               if ( !$wgUser->canSendEmail() || $wgUser->isBlockedFromEmailUser() ) {
+               if ( !$wgUser->canSendEmail() || $wgUser->isBlockedFromEmailuser() ) {
                        return false;
                }
 
-               static $cachedEmailToken = null;
-               if ( !is_null( $cachedEmailToken ) ) {
-                       return $cachedEmailToken;
+               // The token is always the same, let's exploit that
+               if ( !isset( self::$cachedTokens['email'] ) ) {
+                       self::$cachedTokens['email'] = $wgUser->getEditToken();
                }
 
-               $cachedEmailToken = $wgUser->editToken();
-               return $cachedEmailToken;
+               return self::$cachedTokens['email'];
        }
 
+       /**
+        * @deprecated since 1.24
+        */
        public static function getImportToken( $pageid, $title ) {
                global $wgUser;
-               if ( !$wgUser->isAllowed( 'import' ) ) {
+               if ( !$wgUser->isAllowedAny( 'import', 'importupload' ) ) {
+                       return false;
+               }
+
+               // The token is always the same, let's exploit that
+               if ( !isset( self::$cachedTokens['import'] ) ) {
+                       self::$cachedTokens['import'] = $wgUser->getEditToken();
+               }
+
+               return self::$cachedTokens['import'];
+       }
+
+       /**
+        * @deprecated since 1.24
+        */
+       public static function getWatchToken( $pageid, $title ) {
+               global $wgUser;
+               if ( !$wgUser->isLoggedIn() ) {
+                       return false;
+               }
+
+               // The token is always the same, let's exploit that
+               if ( !isset( self::$cachedTokens['watch'] ) ) {
+                       self::$cachedTokens['watch'] = $wgUser->getEditToken( 'watch' );
+               }
+
+               return self::$cachedTokens['watch'];
+       }
+
+       /**
+        * @deprecated since 1.24
+        */
+       public static function getOptionsToken( $pageid, $title ) {
+               global $wgUser;
+               if ( !$wgUser->isLoggedIn() ) {
                        return false;
                }
 
-               static $cachedImportToken = null;
-               if ( !is_null( $cachedImportToken ) ) {
-                       return $cachedImportToken;
+               // The token is always the same, let's exploit that
+               if ( !isset( self::$cachedTokens['options'] ) ) {
+                       self::$cachedTokens['options'] = $wgUser->getEditToken();
                }
 
-               $cachedImportToken = $wgUser->editToken();
-               return $cachedImportToken;
+               return self::$cachedTokens['options'];
        }
 
        public function execute() {
@@ -212,6 +301,9 @@ class ApiQueryInfo extends ApiQueryBase {
                        $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'] );
@@ -226,15 +318,12 @@ class ApiQueryInfo extends ApiQueryBase {
                $this->everything = $this->titles + $this->missing;
                $result = $this->getResult();
 
-               uasort( $this->everything, array( 'Title', 'compare' ) );
+               uasort( $this->everything, [ 'Title', 'compare' ] );
                if ( !is_null( $this->params['continue'] ) ) {
                        // Throw away any titles we're gonna skip so they don't
                        // clutter queries
                        $cont = explode( '|', $this->params['continue'] );
-                       if ( count( $cont ) != 2 ) {
-                               $this->dieUsage( 'Invalid continue param. You should pass the original ' .
-                                               'value returned by the previous query', '_badcontinue' );
-                       }
+                       $this->dieContinueUsageIf( count( $cont ) != 2 );
                        $conttitle = Title::makeTitleSafe( $cont[0], $cont[1] );
                        foreach ( $this->everything as $pageid => $title ) {
                                if ( Title::compare( $title, $conttitle ) >= 0 ) {
@@ -247,14 +336,12 @@ class ApiQueryInfo extends ApiQueryBase {
                }
 
                $this->pageRestrictions = $pageSet->getCustomField( 'page_restrictions' );
-               $this->pageIsRedir = $pageSet->getCustomField( 'page_is_redirect' );
+               // 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' );
 
-               global $wgDisableCounters;
-
-               if ( !$wgDisableCounters ) {
-                       $this->pageCounter = $pageSet->getCustomField( 'page_counter' );
-               }
                $this->pageTouched = $pageSet->getCustomField( 'page_touched' );
                $this->pageLatest = $pageSet->getCustomField( 'page_latest' );
                $this->pageLength = $pageSet->getCustomField( 'page_len' );
@@ -264,10 +351,18 @@ class ApiQueryInfo extends ApiQueryBase {
                        $this->getProtectionInfo();
                }
 
-               if ( $this->fld_watched ) {
+               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();
@@ -277,16 +372,17 @@ class ApiQueryInfo extends ApiQueryBase {
                        $this->getDisplayTitle();
                }
 
+               /** @var Title $title */
                foreach ( $this->everything as $pageid => $title ) {
                        $pageInfo = $this->extractPageInfo( $pageid, $title );
-                       $fit = $result->addValue( array(
+                       $fit = $pageInfo !== null && $result->addValue( [
                                'query',
                                'pages'
-                       ), $pageid, $pageInfo );
+                       ], $pageid, $pageInfo );
                        if ( !$fit ) {
                                $this->setContinueEnumParameter( 'continue',
-                                               $title->getNamespace() . '|' .
-                                               $title->getText() );
+                                       $title->getNamespace() . '|' .
+                                       $title->getText() );
                                break;
                        }
                }
@@ -294,27 +390,34 @@ class ApiQueryInfo extends ApiQueryBase {
 
        /**
         * Get a result array with information about a title
-        * @param $pageid int Page ID (negative for missing titles)
-        * @param $title Title object
-        * @return array
+        * @param int $pageid Page ID (negative for missing titles)
+        * @param Title $title
+        * @return array|null
         */
        private function extractPageInfo( $pageid, $title ) {
-               $pageInfo = array();
-               if ( $title->exists() ) {
-                       global $wgDisableCounters;
+               $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'] = intval( $this->pageLatest[$pageid] );
-                       $pageInfo['counter'] = $wgDisableCounters
-                               ? ""
-                               : intval( $this->pageCounter[$pageid] );
                        $pageInfo['length'] = intval( $this->pageLength[$pageid] );
 
-                       if ( $this->pageIsRedir[$pageid] ) {
-                               $pageInfo['redirect'] = '';
+                       if ( isset( $this->pageIsRedir[$pageid] ) && $this->pageIsRedir[$pageid] ) {
+                               $pageInfo['redirect'] = true;
                        }
                        if ( $this->pageIsNew[$pageid] ) {
-                               $pageInfo['new'] = '';
+                               $pageInfo['new'] = true;
                        }
                }
 
@@ -324,7 +427,7 @@ class ApiQueryInfo extends ApiQueryBase {
                        foreach ( $this->params['token'] as $t ) {
                                $val = call_user_func( $tokenFunctions[$t], $pageid, $title );
                                if ( $val === false ) {
-                                       $this->setWarning( "Action '$t' is not allowed for the current user" );
+                                       $this->addWarning( [ 'apiwarn-tokennotallowed', $t ] );
                                } else {
                                        $pageInfo[$t . 'token'] = $val;
                                }
@@ -332,53 +435,99 @@ class ApiQueryInfo extends ApiQueryBase {
                }
 
                if ( $this->fld_protection ) {
-                       $pageInfo['protection'] = array();
-                       if ( isset( $this->protections[$title->getNamespace()][$title->getDBkey()] ) ) {
+                       $pageInfo['protection'] = [];
+                       if ( isset( $this->protections[$ns][$dbkey] ) ) {
                                $pageInfo['protection'] =
-                                       $this->protections[$title->getNamespace()][$title->getDBkey()];
+                                       $this->protections[$ns][$dbkey];
                        }
-                       $this->getResult()->setIndexedTagName( $pageInfo['protection'], 'pr' );
+                       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 && isset( $this->watched[$title->getNamespace()][$title->getDBkey()] ) ) {
-                       $pageInfo['watched'] = '';
+               if ( $this->fld_watched && $this->watched !== null ) {
+                       $pageInfo['watched'] = $this->watched[$ns][$dbkey];
                }
 
-               if ( $this->fld_talkid && isset( $this->talkids[$title->getNamespace()][$title->getDBkey()] ) ) {
-                       $pageInfo['talkid'] = $this->talkids[$title->getNamespace()][$title->getDBkey()];
+               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_subjectid && isset( $this->subjectids[$title->getNamespace()][$title->getDBkey()] ) ) {
-                       $pageInfo['subjectid'] = $this->subjectids[$title->getNamespace()][$title->getDBkey()];
+               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 ( $this->notificationtimestamps[$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'] = $title->getFullURL();
-                       $pageInfo['editurl'] = $title->getFullURL( 'action=edit' );
+                       $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 && $title->userCanRead() ) {
-                       $pageInfo['readable'] = '';
+               if ( $this->fld_readable ) {
+                       $pageInfo['readable'] = $title->userCan( 'read', $this->getUser() );
                }
 
                if ( $this->fld_preload ) {
-                       if ( $title->exists() ) {
+                       if ( $titleExists ) {
                                $pageInfo['preload'] = '';
                        } else {
                                $text = null;
-                               wfRunHooks( 'EditFormPreloadText', array( &$text, &$title ) );
+                               Hooks::run( 'EditFormPreloadText', [ &$text, &$title ] );
 
                                $pageInfo['preload'] = $text;
                        }
                }
 
                if ( $this->fld_displaytitle ) {
-                       if ( isset( $this->displaytitles[$title->getArticleId()] ) ) {
-                               $pageInfo['displaytitle'] = $this->displaytitles[$title->getArticleId()];
+                       if ( isset( $this->displaytitles[$pageid] ) ) {
+                               $pageInfo['displaytitle'] = $this->displaytitles[$pageid];
                        } else {
                                $pageInfo['displaytitle'] = $title->getPrefixedText();
                        }
                }
 
+               if ( $this->params['testactions'] ) {
+                       $limit = $this->getMain()->canApiHighLimits() ? self::LIMIT_SML1 : self::LIMIT_SML2;
+                       if ( $this->countTestedActions >= $limit ) {
+                               return null; // force a continuation
+                       }
+
+                       $user = $this->getUser();
+                       $pageInfo['actions'] = [];
+                       foreach ( $this->params['testactions'] as $action ) {
+                               $this->countTestedActions++;
+                               $pageInfo['actions'][$action] = $title->userCan( $action, $user );
+                       }
+               }
+
                return $pageInfo;
        }
 
@@ -386,34 +535,37 @@ class ApiQueryInfo extends ApiQueryBase {
         * Get information about protections and put it in $protections
         */
        private function getProtectionInfo() {
-               $this->protections = array();
+               $this->protections = [];
                $db = $this->getDB();
 
                // Get normal protections for existing titles
                if ( count( $this->titles ) ) {
                        $this->resetQueryParams();
-                       $this->addTables( array( 'page_restrictions', 'page' ) );
-                       $this->addWhere( 'page_id=pr_page' );
-                       $this->addFields( array( 'pr_page', 'pr_type', 'pr_level',
-                                       'pr_expiry', 'pr_cascade', 'page_namespace',
-                                       'page_title' ) );
+                       $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 ) {
-                               $a = array(
+                               /** @var Title $title */
+                               $title = $this->titles[$row->pr_page];
+                               $a = [
                                        'type' => $row->pr_type,
                                        'level' => $row->pr_level,
-                                       'expiry' => Block::decodeExpiry( $row->pr_expiry, TS_ISO_8601 )
-                               );
+                                       'expiry' => ApiResult::formatExpiry( $row->pr_expiry )
+                               ];
                                if ( $row->pr_cascade ) {
-                                       $a['cascade'] = '';
+                                       $a['cascade'] = true;
                                }
-                               $this->protections[$row->page_namespace][$row->page_title][] = $a;
-
-                               // Also check old restrictions
-                               if ( $this->pageRestrictions[$row->pr_page] ) {
-                                       $restrictions = explode( ':', trim( $this->pageRestrictions[$row->pr_page] ) );
+                               $this->protections[$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 ) {
@@ -423,26 +575,26 @@ class ApiQueryInfo extends ApiQueryBase {
                                                        if ( $restriction == '' ) {
                                                                continue;
                                                        }
-                                                       $this->protections[$row->page_namespace][$row->page_title][] = array(
+                                                       $this->protections[$namespace][$dbKey][] = [
                                                                'type' => 'edit',
                                                                'level' => $restriction,
                                                                'expiry' => 'infinity',
-                                                       );
-                                                       $this->protections[$row->page_namespace][$row->page_title][] = array(
+                                                       ];
+                                                       $this->protections[$namespace][$dbKey][] = [
                                                                'type' => 'move',
                                                                'level' => $restriction,
                                                                'expiry' => 'infinity',
-                                                       );
+                                                       ];
                                                } else {
                                                        $restriction = trim( $temp[1] );
                                                        if ( $restriction == '' ) {
                                                                continue;
                                                        }
-                                                       $this->protections[$row->page_namespace][$row->page_title][] = array(
+                                                       $this->protections[$namespace][$dbKey][] = [
                                                                'type' => $temp[0],
                                                                'level' => $restriction,
                                                                'expiry' => 'infinity',
-                                                       );
+                                                       ];
                                                }
                                        }
                                }
@@ -454,36 +606,40 @@ class ApiQueryInfo extends ApiQueryBase {
                        $this->resetQueryParams();
                        $lb = new LinkBatch( $this->missing );
                        $this->addTables( 'protected_titles' );
-                       $this->addFields( array( 'pt_title', 'pt_namespace', 'pt_create_perm', 'pt_expiry' ) );
+                       $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][] = array(
+                               $this->protections[$row->pt_namespace][$row->pt_title][] = [
                                        'type' => 'create',
                                        'level' => $row->pt_create_perm,
-                                       'expiry' => Block::decodeExpiry( $row->pt_expiry, TS_ISO_8601 )
-                               );
+                                       'expiry' => ApiResult::formatExpiry( $row->pt_expiry )
+                               ];
                        }
                }
 
-               // Cascading protections
-               $images = $others = array();
+               // 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 = new LinkBatch( $others );
                        $this->resetQueryParams();
-                       $this->addTables( array( 'page_restrictions', 'page', 'templatelinks' ) );
-                       $this->addFields( array( 'pr_type', 'pr_level', 'pr_expiry',
-                                       'page_title', 'page_namespace',
-                                       'tl_title', 'tl_namespace' ) );
+                       $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' );
@@ -492,21 +648,21 @@ class ApiQueryInfo extends ApiQueryBase {
                        $res = $this->select( __METHOD__ );
                        foreach ( $res as $row ) {
                                $source = Title::makeTitle( $row->page_namespace, $row->page_title );
-                               $this->protections[$row->tl_namespace][$row->tl_title][] = array(
+                               $this->protections[$row->tl_namespace][$row->tl_title][] = [
                                        'type' => $row->pr_type,
                                        'level' => $row->pr_level,
-                                       'expiry' => Block::decodeExpiry( $row->pr_expiry, TS_ISO_8601 ),
+                                       'expiry' => ApiResult::formatExpiry( $row->pr_expiry ),
                                        'source' => $source->getPrefixedText()
-                               );
+                               ];
                        }
                }
 
                if ( count( $images ) ) {
                        // Images: check imagelinks
                        $this->resetQueryParams();
-                       $this->addTables( array( 'page_restrictions', 'page', 'imagelinks' ) );
-                       $this->addFields( array( 'pr_type', 'pr_level', 'pr_expiry',
-                                       'page_title', 'page_namespace', 'il_to' ) );
+                       $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 );
@@ -515,12 +671,12 @@ class ApiQueryInfo extends ApiQueryBase {
                        $res = $this->select( __METHOD__ );
                        foreach ( $res as $row ) {
                                $source = Title::makeTitle( $row->page_namespace, $row->page_title );
-                               $this->protections[NS_FILE][$row->il_to][] = array(
+                               $this->protections[NS_FILE][$row->il_to][] = [
                                        'type' => $row->pr_type,
                                        'level' => $row->pr_level,
-                                       'expiry' => Block::decodeExpiry( $row->pr_expiry, TS_ISO_8601 ),
+                                       'expiry' => ApiResult::formatExpiry( $row->pr_expiry ),
                                        'source' => $source->getPrefixedText()
-                               );
+                               ];
                        }
                }
        }
@@ -530,8 +686,9 @@ class ApiQueryInfo extends ApiQueryBase {
         * and put them in $talkids and $subjectids
         */
        private function getTSIDs() {
-               $getTitles = $this->talkids = $this->subjectids = array();
+               $getTitles = $this->talkids = $this->subjectids = [];
 
+               /** @var Title $t */
                foreach ( $this->everything as $t ) {
                        if ( MWNamespace::isTalk( $t->getNamespace() ) ) {
                                if ( $this->fld_subjectid ) {
@@ -552,22 +709,22 @@ class ApiQueryInfo extends ApiQueryBase {
                $lb = new LinkBatch( $getTitles );
                $this->resetQueryParams();
                $this->addTables( 'page' );
-               $this->addFields( array( 'page_title', 'page_namespace', 'page_id' ) );
+               $this->addFields( [ 'page_title', 'page_namespace', 'page_id' ] );
                $this->addWhere( $lb->constructSet( 'page', $db ) );
                $res = $this->select( __METHOD__ );
                foreach ( $res as $row ) {
                        if ( MWNamespace::isTalk( $row->page_namespace ) ) {
                                $this->talkids[MWNamespace::getSubject( $row->page_namespace )][$row->page_title] =
-                                               intval( $row->page_id );
+                                       intval( $row->page_id );
                        } else {
                                $this->subjectids[MWNamespace::getTalk( $row->page_namespace )][$row->page_title] =
-                                               intval( $row->page_id );
+                                       intval( $row->page_id );
                        }
                }
        }
 
        private function getDisplayTitle() {
-               $this->displaytitles = array();
+               $this->displaytitles = [];
 
                $pageIds = array_keys( $this->titles );
 
@@ -577,7 +734,7 @@ class ApiQueryInfo extends ApiQueryBase {
 
                $this->resetQueryParams();
                $this->addTables( 'page_props' );
-               $this->addFields( array( 'pp_page', 'pp_value' ) );
+               $this->addFields( [ 'pp_page', 'pp_value' ] );
                $this->addWhereFld( 'pp_page', $pageIds );
                $this->addWhereFld( 'pp_propname', 'displaytitle' );
                $res = $this->select( __METHOD__ );
@@ -589,65 +746,171 @@ class ApiQueryInfo extends ApiQueryBase {
 
        /**
         * Get information about watched status and put it in $this->watched
+        * and $this->notificationtimestamps
         */
        private function getWatchedInfo() {
-               global $wgUser;
+               $user = $this->getUser();
 
-               if ( $wgUser->isAnon() || count( $this->everything ) == 0 ) {
+               if ( $user->isAnon() || count( $this->everything ) == 0
+                       || !$user->isAllowed( 'viewmywatchlist' )
+               ) {
                        return;
                }
 
-               $this->watched = array();
-               $db = $this->getDB();
+               $this->watched = [];
+               $this->notificationtimestamps = [];
 
-               $lb = new LinkBatch( $this->everything );
+               $store = MediaWikiServices::getInstance()->getWatchedItemStore();
+               $timestamps = $store->getNotificationTimestampsBatch( $user, $this->everything );
 
-               $this->resetQueryParams();
-               $this->addTables( array( 'watchlist' ) );
-               $this->addFields( array( 'wl_title', 'wl_namespace' ) );
-               $this->addWhere( array(
-                       $lb->constructSet( 'wl', $db ),
-                       'wl_user' => $wgUser->getID()
-               ) );
+               if ( $this->fld_watched ) {
+                       foreach ( $timestamps as $namespaceId => $dbKeys ) {
+                               $this->watched[$namespaceId] = array_map(
+                                       function ( $x ) {
+                                               return $x !== false;
+                                       },
+                                       $dbKeys
+                               );
+                       }
+               }
+               if ( $this->fld_notificationtimestamp ) {
+                       $this->notificationtimestamps = $timestamps;
+               }
+       }
 
-               $res = $this->select( __METHOD__ );
+       /**
+        * Get the count of watchers and put it in $this->watchers
+        */
+       private function getWatcherInfo() {
+               if ( count( $this->everything ) == 0 ) {
+                       return;
+               }
 
-               foreach ( $res as $row ) {
-                       $this->watched[$row->wl_namespace][$row->wl_title] = true;
+               $user = $this->getUser();
+               $canUnwatchedpages = $user->isAllowed( 'unwatchedpages' );
+               $unwatchedPageThreshold = $this->getConfig()->get( 'UnwatchedPageThreshold' );
+               if ( !$canUnwatchedpages && !is_int( $unwatchedPageThreshold ) ) {
+                       return;
+               }
+
+               $this->showZeroWatchers = $canUnwatchedpages;
+
+               $countOptions = [];
+               if ( !$canUnwatchedpages ) {
+                       $countOptions['minimumWatchers'] = $unwatchedPageThreshold;
                }
+
+               $this->watchers = MediaWikiServices::getInstance()->getWatchedItemStore()->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();
+               $user = $this->getUser();
+               $db = $this->getDB();
+
+               $canUnwatchedpages = $user->isAllowed( 'unwatchedpages' );
+               $unwatchedPageThreshold = $this->getConfig()->get( 'UnwatchedPageThreshold' );
+               if ( !$canUnwatchedpages && !is_int( $unwatchedPageThreshold ) ) {
+                       return;
+               }
+
+               $this->showZeroWatchers = $canUnwatchedpages;
+
+               $titlesWithThresholds = [];
+               if ( $this->titles ) {
+                       $lb = new LinkBatch( $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] = $revTimestamp - $age;
+                       }
+                       $titlesWithThresholds = array_map(
+                               function ( LinkTarget $target ) use ( $timestamps ) {
+                                       return [
+                                               $target, $timestamps[$target->getNamespace()][$target->getDBkey()]
+                                       ];
+                               },
+                               $this->titles
+                       );
+               }
+
+               if ( $this->missing ) {
+                       $titlesWithThresholds = array_merge(
+                               $titlesWithThresholds,
+                               array_map(
+                                       function ( LinkTarget $target ) {
+                                               return [ $target, null ];
+                                       },
+                                       $this->missing
+                               )
+                       );
+               }
+               $store = MediaWikiServices::getInstance()->getWatchedItemStore();
+               $this->visitingwatchers = $store->countVisitingWatchersMultiple(
+                       $titlesWithThresholds,
+                       !$canUnwatchedpages ? $unwatchedPageThreshold : null
+               );
        }
 
        public function getCacheMode( $params ) {
-               $publicProps = array(
+               // Other props depend on something about the current user
+               $publicProps = [
                        'protection',
                        'talkid',
                        'subjectid',
                        'url',
                        'preload',
                        'displaytitle',
-               );
-               if ( !is_null( $params['prop'] ) ) {
-                       foreach ( $params['prop'] as $prop ) {
-                               if ( !in_array( $prop, $publicProps ) ) {
-                                       return 'private';
-                               }
-                       }
+               ];
+               if ( array_diff( (array)$params['prop'], $publicProps ) ) {
+                       return 'private';
+               }
+
+               // testactions also depends on the current user
+               if ( $params['testactions'] ) {
+                       return 'private';
                }
+
                if ( !is_null( $params['token'] ) ) {
                        return 'private';
                }
+
                return 'public';
        }
 
        public function getAllowedParams() {
-               return array(
-                       'prop' => array(
-                               ApiBase::PARAM_DFLT => null,
+               return [
+                       'prop' => [
                                ApiBase::PARAM_ISMULTI => true,
-                               ApiBase::PARAM_TYPE => array(
+                               ApiBase::PARAM_TYPE => [
                                        'protection',
                                        'talkid',
                                        'watched', # private
+                                       'watchers', # private
+                                       'visitingwatchers', # private
+                                       'notificationtimestamp', # private
                                        'subjectid',
                                        'url',
                                        'readable', # private
@@ -655,52 +918,34 @@ class ApiQueryInfo extends ApiQueryBase {
                                        'displaytitle',
                                        // If you add more properties here, please consider whether they
                                        // need to be added to getCacheMode()
-                               ) ),
-                       'token' => array(
-                               ApiBase::PARAM_DFLT => null,
+                               ],
+                               ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
+                       ],
+                       'testactions' => [
+                               ApiBase::PARAM_TYPE => 'string',
+                               ApiBase::PARAM_ISMULTI => true,
+                       ],
+                       'token' => [
+                               ApiBase::PARAM_DEPRECATED => true,
                                ApiBase::PARAM_ISMULTI => true,
                                ApiBase::PARAM_TYPE => array_keys( $this->getTokenFunctions() )
-                       ),
-                       'continue' => null,
-               );
+                       ],
+                       'continue' => [
+                               ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
+                       ],
+               ];
        }
 
-       public function getParamDescription() {
-               return array(
-                       'prop' => array(
-                               'Which additional properties to get:',
-                               ' protection   - List the protection level of each page',
-                               ' talkid       - The page ID of the talk page for each non-talk page',
-                               ' watched      - List the watched status of each page',
-                               ' subjectid    - The page ID of the parent page for each talk page',
-                               ' url          - Gives a full URL to the page, and also an edit URL',
-                               ' readable     - Whether the user can read this page',
-                               ' preload      - Gives the text returned by EditFormPreloadText',
-                               ' displaytitle - Gives the way the page title is actually displayed',
-                       ),
-                       'token' => 'Request a token to perform a data-modifying action on a page',
-                       'continue' => 'When more results are available, use this to continue',
-               );
-       }
-
-       public function getDescription() {
-               return 'Get basic page information such as namespace, title, last touched date, ...';
-       }
-
-       public function getPossibleErrors() {
-               return array_merge( parent::getPossibleErrors(), array(
-                       array( 'code' => '_badcontinue', 'info' => 'Invalid continue param. You should pass the original value returned by the previous query' ),
-               ) );
-       }
-
-       protected function getExamples() {
-               return array(
-                       'api.php?action=query&prop=info&titles=Main%20Page',
-                       'api.php?action=query&prop=info&inprop=protection&titles=Main%20Page'
-               );
+       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 getVersion() {
-               return __CLASS__ . ': $Id$';
+       public function getHelpUrls() {
+               return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Info';
        }
 }