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
  28 /**
  29  * API interface for setting the wl_notificationtimestamp field
  30  * @ingroup API
  31  */
  32 class ApiSetNotificationTimestamp extends ApiBase {
  33
  34         private $mPageSet;
  35
  36         public function execute() {
  37                 $user = $this->getUser();
  38
  39                 if ( $user->isAnon() ) {
  40                         $this->dieUsage( 'Anonymous users cannot use watchlist change notifications', 'notloggedin' );
  41                 }
  42                 if ( !$user->isAllowed( 'editmywatchlist' ) ) {
  43                         $this->dieUsage( 'You don\'t have permission to edit your watchlist', 'permissiondenied' );
  44                 }
  45
  46                 $params = $this->extractRequestParams();
  47                 $this->requireMaxOneParameter( $params, 'timestamp', 'torevid', 'newerthanrevid' );
  48
  49                 $this->getResult()->beginContinuation( $params['continue'], array(), array() );
  50
  51                 $pageSet = $this->getPageSet();
  52                 if ( $params['entirewatchlist'] && $pageSet->getDataSource() !== null ) {
  53                         $this->dieUsage(
  54                                 "Cannot use 'entirewatchlist' at the same time as '{$pageSet->getDataSource()}'",
  55                                 'multisource'
  56                         );
  57                 }
  58
  59                 $dbw = wfGetDB( DB_MASTER, 'api' );
  60
  61                 $timestamp = null;
  62                 if ( isset( $params['timestamp'] ) ) {
  63                         $timestamp = $dbw->timestamp( $params['timestamp'] );
  64                 }
  65
  66                 if ( !$params['entirewatchlist'] ) {
  67                         $pageSet->execute();
  68                 }
  69
  70                 if ( isset( $params['torevid'] ) ) {
  71                         if ( $params['entirewatchlist'] || $pageSet->getGoodTitleCount() > 1 ) {
  72                                 $this->dieUsage( 'torevid may only be used with a single page', 'multpages' );
  73                         }
  74                         $title = reset( $pageSet->getGoodTitles() );
  75                         if ( $title ) {
  76                                 $timestamp = Revision::getTimestampFromId(
  77                                         $title, $params['torevid'], Revision::READ_LATEST );
  78                                 if ( $timestamp ) {
  79                                         $timestamp = $dbw->timestamp( $timestamp );
  80                                 } else {
  81                                         $timestamp = null;
  82                                 }
  83                         }
  84                 } elseif ( isset( $params['newerthanrevid'] ) ) {
  85                         if ( $params['entirewatchlist'] || $pageSet->getGoodTitleCount() > 1 ) {
  86                                 $this->dieUsage( 'newerthanrevid may only be used with a single page', 'multpages' );
  87                         }
  88                         $title = reset( $pageSet->getGoodTitles() );
  89                         if ( $title ) {
  90                                 $revid = $title->getNextRevisionID(
  91                                         $params['newerthanrevid'], Title::GAID_FOR_UPDATE );
  92                                 if ( $revid ) {
  93                                         $timestamp = $dbw->timestamp( Revision::getTimestampFromId( $title, $revid ) );
  94                                 } else {
  95                                         $timestamp = null;
  96                                 }
  97                         }
  98                 }
  99
 100                 $apiResult = $this->getResult();
 101                 $result = array();
 102                 if ( $params['entirewatchlist'] ) {
 103                         // Entire watchlist mode: Just update the thing and return a success indicator
 104                         $dbw->update( 'watchlist', array( 'wl_notificationtimestamp' => $timestamp ),
 105                                 array( 'wl_user' => $user->getID() ),
 106                                 __METHOD__
 107                         );
 108
 109                         $result['notificationtimestamp'] = is_null( $timestamp )
 110                                 ? ''
 111                                 : wfTimestamp( TS_ISO_8601, $timestamp );
 112                 } else {
 113                         // First, log the invalid titles
 114                         foreach ( $pageSet->getInvalidTitles() as $title ) {
 115                                 $r = array();
 116                                 $r['title'] = $title;
 117                                 $r['invalid'] = '';
 118                                 $result[] = $r;
 119                         }
 120                         foreach ( $pageSet->getMissingPageIDs() as $p ) {
 121                                 $page = array();
 122                                 $page['pageid'] = $p;
 123                                 $page['missing'] = '';
 124                                 $page['notwatched'] = '';
 125                                 $result[] = $page;
 126                         }
 127                         foreach ( $pageSet->getMissingRevisionIDs() as $r ) {
 128                                 $rev = array();
 129                                 $rev['revid'] = $r;
 130                                 $rev['missing'] = '';
 131                                 $rev['notwatched'] = '';
 132                                 $result[] = $rev;
 133                         }
 134
 135                         if ( $pageSet->getTitles() ) {
 136                                 // Now process the valid titles
 137                                 $lb = new LinkBatch( $pageSet->getTitles() );
 138                                 $dbw->update( 'watchlist', array( 'wl_notificationtimestamp' => $timestamp ),
 139                                         array( 'wl_user' => $user->getID(), $lb->constructSet( 'wl', $dbw ) ),
 140                                         __METHOD__
 141                                 );
 142
 143                                 // Query the results of our update
 144                                 $timestamps = array();
 145                                 $res = $dbw->select(
 146                                         'watchlist',
 147                                         array( 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ),
 148                                         array( 'wl_user' => $user->getID(), $lb->constructSet( 'wl', $dbw ) ),
 149                                         __METHOD__
 150                                 );
 151                                 foreach ( $res as $row ) {
 152                                         $timestamps[$row->wl_namespace][$row->wl_title] = $row->wl_notificationtimestamp;
 153                                 }
 154
 155                                 // Now, put the valid titles into the result
 156                                 /** @var $title Title */
 157                                 foreach ( $pageSet->getTitles() as $title ) {
 158                                         $ns = $title->getNamespace();
 159                                         $dbkey = $title->getDBkey();
 160                                         $r = array(
 161                                                 'ns' => intval( $ns ),
 162                                                 'title' => $title->getPrefixedText(),
 163                                         );
 164                                         if ( !$title->exists() ) {
 165                                                 $r['missing'] = '';
 166                                         }
 167                                         if ( isset( $timestamps[$ns] ) && array_key_exists( $dbkey, $timestamps[$ns] ) ) {
 168                                                 $r['notificationtimestamp'] = '';
 169                                                 if ( $timestamps[$ns][$dbkey] !== null ) {
 170                                                         $r['notificationtimestamp'] = wfTimestamp( TS_ISO_8601, $timestamps[$ns][$dbkey] );
 171                                                 }
 172                                         } else {
 173                                                 $r['notwatched'] = '';
 174                                         }
 175                                         $result[] = $r;
 176                                 }
 177                         }
 178
 179                         $apiResult->setIndexedTagName( $result, 'page' );
 180                 }
 181                 $apiResult->addValue( null, $this->getModuleName(), $result );
 182
 183                 $apiResult->endContinuation();
 184         }
 185
 186         /**
 187          * Get a cached instance of an ApiPageSet object
 188          * @return ApiPageSet
 189          */
 190         private function getPageSet() {
 191                 if ( !isset( $this->mPageSet ) ) {
 192                         $this->mPageSet = new ApiPageSet( $this );
 193                 }
 194
 195                 return $this->mPageSet;
 196         }
 197
 198         public function mustBePosted() {
 199                 return true;
 200         }
 201
 202         public function isWriteMode() {
 203                 return true;
 204         }
 205
 206         public function needsToken() {
 207                 return 'csrf';
 208         }
 209
 210         public function getAllowedParams( $flags = 0 ) {
 211                 $result = array(
 212                         'entirewatchlist' => array(
 213                                 ApiBase::PARAM_TYPE => 'boolean'
 214                         ),
 215                         'timestamp' => array(
 216                                 ApiBase::PARAM_TYPE => 'timestamp'
 217                         ),
 218                         'torevid' => array(
 219                                 ApiBase::PARAM_TYPE => 'integer'
 220                         ),
 221                         'newerthanrevid' => array(
 222                                 ApiBase::PARAM_TYPE => 'integer'
 223                         ),
 224                         'continue' => array(
 225                                 ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
 226                         ),
 227                 );
 228                 if ( $flags ) {
 229                         $result += $this->getPageSet()->getFinalParams( $flags );
 230                 }
 231
 232                 return $result;
 233         }
 234
 235         protected function getExamplesMessages() {
 236                 return array(
 237                         'action=setnotificationtimestamp&entirewatchlist=&token=123ABC'
 238                                 => 'apihelp-setnotificationtimestamp-example-all',
 239                         'action=setnotificationtimestamp&titles=Main_page&token=123ABC'
 240                                 => 'apihelp-setnotificationtimestamp-example-page',
 241                         'action=setnotificationtimestamp&titles=Main_page&' .
 242                                 'timestamp=2012-01-01T00:00:00Z&token=123ABC'
 243                                 => 'apihelp-setnotificationtimestamp-example-pagetimestamp',
 244                         'action=setnotificationtimestamp&generator=allpages&gapnamespace=2&token=123ABC'
 245                                 => 'apihelp-setnotificationtimestamp-example-allpages',
 246                 );
 247         }
 248
 249         public function getHelpUrls() {
 250                 return 'https://www.mediawiki.org/wiki/API:SetNotificationTimestamp';
 251         }
 252 }