includes/api/ApiSetNotificationTimestamp.php

   1 <?php
   2
   3 /**
   4  * API for MediaWiki 1.14+
   5  *
   6  * Created on Jun 18, 2012
   7  *
   8  * Copyright © 2012 Brad Jorsch
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  23  * http://www.gnu.org/copyleft/gpl.html
  24  *
  25  * @file
  26  */
  27 use MediaWiki\MediaWikiServices;
  28
  29 /**
  30  * API interface for setting the wl_notificationtimestamp field
  31  * @ingroup API
  32  */
  33 class ApiSetNotificationTimestamp extends ApiBase {
  34
  35         private $mPageSet;
  36
  37         public function execute() {
  38                 $user = $this->getUser();
  39
  40                 if ( $user->isAnon() ) {
  41                         $this->dieUsage( 'Anonymous users cannot use watchlist change notifications', 'notloggedin' );
  42                 }
  43                 if ( !$user->isAllowed( 'editmywatchlist' ) ) {
  44                         $this->dieUsage( 'You don\'t have permission to edit your watchlist', 'permissiondenied' );
  45                 }
  46
  47                 $params = $this->extractRequestParams();
  48                 $this->requireMaxOneParameter( $params, 'timestamp', 'torevid', 'newerthanrevid' );
  49
  50                 $continuationManager = new ApiContinuationManager( $this, [], [] );
  51                 $this->setContinuationManager( $continuationManager );
  52
  53                 $pageSet = $this->getPageSet();
  54                 if ( $params['entirewatchlist'] && $pageSet->getDataSource() !== null ) {
  55                         $this->dieUsage(
  56                                 "Cannot use 'entirewatchlist' at the same time as '{$pageSet->getDataSource()}'",
  57                                 'multisource'
  58                         );
  59                 }
  60
  61                 $dbw = wfGetDB( DB_MASTER, 'api' );
  62
  63                 $timestamp = null;
  64                 if ( isset( $params['timestamp'] ) ) {
  65                         $timestamp = $dbw->timestamp( $params['timestamp'] );
  66                 }
  67
  68                 if ( !$params['entirewatchlist'] ) {
  69                         $pageSet->execute();
  70                 }
  71
  72                 if ( isset( $params['torevid'] ) ) {
  73                         if ( $params['entirewatchlist'] || $pageSet->getGoodTitleCount() > 1 ) {
  74                                 $this->dieUsage( 'torevid may only be used with a single page', 'multpages' );
  75                         }
  76                         $title = reset( $pageSet->getGoodTitles() );
  77                         if ( $title ) {
  78                                 $timestamp = Revision::getTimestampFromId(
  79                                         $title, $params['torevid'], Revision::READ_LATEST );
  80                                 if ( $timestamp ) {
  81                                         $timestamp = $dbw->timestamp( $timestamp );
  82                                 } else {
  83                                         $timestamp = null;
  84                                 }
  85                         }
  86                 } elseif ( isset( $params['newerthanrevid'] ) ) {
  87                         if ( $params['entirewatchlist'] || $pageSet->getGoodTitleCount() > 1 ) {
  88                                 $this->dieUsage( 'newerthanrevid may only be used with a single page', 'multpages' );
  89                         }
  90                         $title = reset( $pageSet->getGoodTitles() );
  91                         if ( $title ) {
  92                                 $revid = $title->getNextRevisionID(
  93                                         $params['newerthanrevid'], Title::GAID_FOR_UPDATE );
  94                                 if ( $revid ) {
  95                                         $timestamp = $dbw->timestamp( Revision::getTimestampFromId( $title, $revid ) );
  96                                 } else {
  97                                         $timestamp = null;
  98                                 }
  99                         }
 100                 }
 101
 102                 $watchedItemStore = MediaWikiServices::getInstance()->getWatchedItemStore();
 103                 $apiResult = $this->getResult();
 104                 $result = [];
 105                 if ( $params['entirewatchlist'] ) {
 106                         // Entire watchlist mode: Just update the thing and return a success indicator
 107                         $watchedItemStore->setNotificationTimestampsForUser(
 108                                 $user,
 109                                 $timestamp
 110                         );
 111
 112                         $result['notificationtimestamp'] = is_null( $timestamp )
 113                                 ? ''
 114                                 : wfTimestamp( TS_ISO_8601, $timestamp );
 115                 } else {
 116                         // First, log the invalid titles
 117                         foreach ( $pageSet->getInvalidTitlesAndReasons() as $r ) {
 118                                 $r['invalid'] = true;
 119                                 $result[] = $r;
 120                         }
 121                         foreach ( $pageSet->getMissingPageIDs() as $p ) {
 122                                 $page = [];
 123                                 $page['pageid'] = $p;
 124                                 $page['missing'] = true;
 125                                 $page['notwatched'] = true;
 126                                 $result[] = $page;
 127                         }
 128                         foreach ( $pageSet->getMissingRevisionIDs() as $r ) {
 129                                 $rev = [];
 130                                 $rev['revid'] = $r;
 131                                 $rev['missing'] = true;
 132                                 $rev['notwatched'] = true;
 133                                 $result[] = $rev;
 134                         }
 135
 136                         if ( $pageSet->getTitles() ) {
 137                                 // Now process the valid titles
 138                                 $watchedItemStore->setNotificationTimestampsForUser(
 139                                         $user,
 140                                         $timestamp,
 141                                         $pageSet->getTitles()
 142                                 );
 143
 144                                 // Query the results of our update
 145                                 $timestamps = [];
 146                                 $lb = new LinkBatch( $pageSet->getTitles() );
 147                                 $res = $dbw->select(
 148                                         'watchlist',
 149                                         [ 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ],
 150                                         [ 'wl_user' => $user->getId(), $lb->constructSet( 'wl', $dbw ) ],
 151                                         __METHOD__
 152                                 );
 153                                 foreach ( $res as $row ) {
 154                                         $timestamps[$row->wl_namespace][$row->wl_title] = $row->wl_notificationtimestamp;
 155                                 }
 156
 157                                 // Now, put the valid titles into the result
 158                                 /** @var $title Title */
 159                                 foreach ( $pageSet->getTitles() as $title ) {
 160                                         $ns = $title->getNamespace();
 161                                         $dbkey = $title->getDBkey();
 162                                         $r = [
 163                                                 'ns' => intval( $ns ),
 164                                                 'title' => $title->getPrefixedText(),
 165                                         ];
 166                                         if ( !$title->exists() ) {
 167                                                 $r['missing'] = true;
 168                                         }
 169                                         if ( isset( $timestamps[$ns] ) && array_key_exists( $dbkey, $timestamps[$ns] ) ) {
 170                                                 $r['notificationtimestamp'] = '';
 171                                                 if ( $timestamps[$ns][$dbkey] !== null ) {
 172                                                         $r['notificationtimestamp'] = wfTimestamp( TS_ISO_8601, $timestamps[$ns][$dbkey] );
 173                                                 }
 174                                         } else {
 175                                                 $r['notwatched'] = true;
 176                                         }
 177                                         $result[] = $r;
 178                                 }
 179                         }
 180
 181                         ApiResult::setIndexedTagName( $result, 'page' );
 182                 }
 183                 $apiResult->addValue( null, $this->getModuleName(), $result );
 184
 185                 $this->setContinuationManager( null );
 186                 $continuationManager->setContinuationIntoResult( $apiResult );
 187         }
 188
 189         /**
 190          * Get a cached instance of an ApiPageSet object
 191          * @return ApiPageSet
 192          */
 193         private function getPageSet() {
 194                 if ( !isset( $this->mPageSet ) ) {
 195                         $this->mPageSet = new ApiPageSet( $this );
 196                 }
 197
 198                 return $this->mPageSet;
 199         }
 200
 201         public function mustBePosted() {
 202                 return true;
 203         }
 204
 205         public function isWriteMode() {
 206                 return true;
 207         }
 208
 209         public function needsToken() {
 210                 return 'csrf';
 211         }
 212
 213         public function getAllowedParams( $flags = 0 ) {
 214                 $result = [
 215                         'entirewatchlist' => [
 216                                 ApiBase::PARAM_TYPE => 'boolean'
 217                         ],
 218                         'timestamp' => [
 219                                 ApiBase::PARAM_TYPE => 'timestamp'
 220                         ],
 221                         'torevid' => [
 222                                 ApiBase::PARAM_TYPE => 'integer'
 223                         ],
 224                         'newerthanrevid' => [
 225                                 ApiBase::PARAM_TYPE => 'integer'
 226                         ],
 227                         'continue' => [
 228                                 ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
 229                         ],
 230                 ];
 231                 if ( $flags ) {
 232                         $result += $this->getPageSet()->getFinalParams( $flags );
 233                 }
 234
 235                 return $result;
 236         }
 237
 238         protected function getExamplesMessages() {
 239                 return [
 240                         'action=setnotificationtimestamp&entirewatchlist=&token=123ABC'
 241                                 => 'apihelp-setnotificationtimestamp-example-all',
 242                         'action=setnotificationtimestamp&titles=Main_page&token=123ABC'
 243                                 => 'apihelp-setnotificationtimestamp-example-page',
 244                         'action=setnotificationtimestamp&titles=Main_page&' .
 245                                 'timestamp=2012-01-01T00:00:00Z&token=123ABC'
 246                                 => 'apihelp-setnotificationtimestamp-example-pagetimestamp',
 247                         'action=setnotificationtimestamp&generator=allpages&gapnamespace=2&token=123ABC'
 248                                 => 'apihelp-setnotificationtimestamp-example-allpages',
 249                 ];
 250         }
 251
 252         public function getHelpUrls() {
 253                 return 'https://www.mediawiki.org/wiki/API:SetNotificationTimestamp';
 254         }
 255 }