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                 $pageSet = $this->getPageSet();
  50                 if ( $params['entirewatchlist'] && $pageSet->getDataSource() !== null ) {
  51                         $this->dieUsage(
  52                                 "Cannot use 'entirewatchlist' at the same time as '{$pageSet->getDataSource()}'",
  53                                 'multisource'
  54                         );
  55                 }
  56
  57                 $dbw = wfGetDB( DB_MASTER, 'api' );
  58
  59                 $timestamp = null;
  60                 if ( isset( $params['timestamp'] ) ) {
  61                         $timestamp = $dbw->timestamp( $params['timestamp'] );
  62                 }
  63
  64                 if ( !$params['entirewatchlist'] ) {
  65                         $pageSet->execute();
  66                 }
  67
  68                 if ( isset( $params['torevid'] ) ) {
  69                         if ( $params['entirewatchlist'] || $pageSet->getGoodTitleCount() > 1 ) {
  70                                 $this->dieUsage( 'torevid may only be used with a single page', 'multpages' );
  71                         }
  72                         $title = reset( $pageSet->getGoodTitles() );
  73                         $timestamp = Revision::getTimestampFromId( $title, $params['torevid'] );
  74                         if ( $timestamp ) {
  75                                 $timestamp = $dbw->timestamp( $timestamp );
  76                         } else {
  77                                 $timestamp = null;
  78                         }
  79                 } elseif ( isset( $params['newerthanrevid'] ) ) {
  80                         if ( $params['entirewatchlist'] || $pageSet->getGoodTitleCount() > 1 ) {
  81                                 $this->dieUsage( 'newerthanrevid may only be used with a single page', 'multpages' );
  82                         }
  83                         $title = reset( $pageSet->getGoodTitles() );
  84                         $revid = $title->getNextRevisionID( $params['newerthanrevid'] );
  85                         if ( $revid ) {
  86                                 $timestamp = $dbw->timestamp( Revision::getTimestampFromId( $title, $revid ) );
  87                         } else {
  88                                 $timestamp = null;
  89                         }
  90                 }
  91
  92                 $apiResult = $this->getResult();
  93                 $result = array();
  94                 if ( $params['entirewatchlist'] ) {
  95                         // Entire watchlist mode: Just update the thing and return a success indicator
  96                         $dbw->update( 'watchlist', array( 'wl_notificationtimestamp' => $timestamp ),
  97                                 array( 'wl_user' => $user->getID() ),
  98                                 __METHOD__
  99                         );
 100
 101                         $result['notificationtimestamp'] = is_null( $timestamp )
 102                                 ? ''
 103                                 : wfTimestamp( TS_ISO_8601, $timestamp );
 104                 } else {
 105                         // First, log the invalid titles
 106                         foreach ( $pageSet->getInvalidTitles() as $title ) {
 107                                 $r = array();
 108                                 $r['title'] = $title;
 109                                 $r['invalid'] = '';
 110                                 $result[] = $r;
 111                         }
 112                         foreach ( $pageSet->getMissingPageIDs() as $p ) {
 113                                 $page = array();
 114                                 $page['pageid'] = $p;
 115                                 $page['missing'] = '';
 116                                 $page['notwatched'] = '';
 117                                 $result[] = $page;
 118                         }
 119                         foreach ( $pageSet->getMissingRevisionIDs() as $r ) {
 120                                 $rev = array();
 121                                 $rev['revid'] = $r;
 122                                 $rev['missing'] = '';
 123                                 $rev['notwatched'] = '';
 124                                 $result[] = $rev;
 125                         }
 126
 127                         // Now process the valid titles
 128                         $lb = new LinkBatch( $pageSet->getTitles() );
 129                         $dbw->update( 'watchlist', array( 'wl_notificationtimestamp' => $timestamp ),
 130                                 array( 'wl_user' => $user->getID(), $lb->constructSet( 'wl', $dbw ) ),
 131                                 __METHOD__
 132                         );
 133
 134                         // Query the results of our update
 135                         $timestamps = array();
 136                         $res = $dbw->select(
 137                                 'watchlist',
 138                                 array( 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ),
 139                                 array( 'wl_user' => $user->getID(), $lb->constructSet( 'wl', $dbw ) ),
 140                                 __METHOD__
 141                         );
 142                         foreach ( $res as $row ) {
 143                                 $timestamps[$row->wl_namespace][$row->wl_title] = $row->wl_notificationtimestamp;
 144                         }
 145
 146                         // Now, put the valid titles into the result
 147                         /** @var $title Title */
 148                         foreach ( $pageSet->getTitles() as $title ) {
 149                                 $ns = $title->getNamespace();
 150                                 $dbkey = $title->getDBkey();
 151                                 $r = array(
 152                                         'ns' => intval( $ns ),
 153                                         'title' => $title->getPrefixedText(),
 154                                 );
 155                                 if ( !$title->exists() ) {
 156                                         $r['missing'] = '';
 157                                 }
 158                                 if ( isset( $timestamps[$ns] ) && array_key_exists( $dbkey, $timestamps[$ns] ) ) {
 159                                         $r['notificationtimestamp'] = '';
 160                                         if ( $timestamps[$ns][$dbkey] !== null ) {
 161                                                 $r['notificationtimestamp'] = wfTimestamp( TS_ISO_8601, $timestamps[$ns][$dbkey] );
 162                                         }
 163                                 } else {
 164                                         $r['notwatched'] = '';
 165                                 }
 166                                 $result[] = $r;
 167                         }
 168
 169                         $apiResult->setIndexedTagName( $result, 'page' );
 170                 }
 171                 $apiResult->addValue( null, $this->getModuleName(), $result );
 172         }
 173
 174         /**
 175          * Get a cached instance of an ApiPageSet object
 176          * @return ApiPageSet
 177          */
 178         private function getPageSet() {
 179                 if ( !isset( $this->mPageSet ) ) {
 180                         $this->mPageSet = new ApiPageSet( $this );
 181                 }
 182
 183                 return $this->mPageSet;
 184         }
 185
 186         public function mustBePosted() {
 187                 return true;
 188         }
 189
 190         public function isWriteMode() {
 191                 return true;
 192         }
 193
 194         public function needsToken() {
 195                 return true;
 196         }
 197
 198         public function getTokenSalt() {
 199                 return '';
 200         }
 201
 202         public function getAllowedParams( $flags = 0 ) {
 203                 $result = array(
 204                         'entirewatchlist' => array(
 205                                 ApiBase::PARAM_TYPE => 'boolean'
 206                         ),
 207                         'token' => null,
 208                         'timestamp' => array(
 209                                 ApiBase::PARAM_TYPE => 'timestamp'
 210                         ),
 211                         'torevid' => array(
 212                                 ApiBase::PARAM_TYPE => 'integer'
 213                         ),
 214                         'newerthanrevid' => array(
 215                                 ApiBase::PARAM_TYPE => 'integer'
 216                         ),
 217                 );
 218                 if ( $flags ) {
 219                         $result += $this->getPageSet()->getFinalParams( $flags );
 220                 }
 221
 222                 return $result;
 223         }
 224
 225         public function getParamDescription() {
 226                 return $this->getPageSet()->getFinalParamDescription() + array(
 227                         'entirewatchlist' => 'Work on all watched pages',
 228                         'timestamp' => 'Timestamp to which to set the notification timestamp',
 229                         'torevid' => 'Revision to set the notification timestamp to (one page only)',
 230                         'newerthanrevid' => 'Revision to set the notification timestamp newer than (one page only)',
 231                         'token' => 'A token previously acquired via prop=info',
 232                 );
 233         }
 234
 235         public function getResultProperties() {
 236                 return array(
 237                         ApiBase::PROP_LIST => true,
 238                         ApiBase::PROP_ROOT => array(
 239                                 'notificationtimestamp' => array(
 240                                         ApiBase::PROP_TYPE => 'timestamp',
 241                                         ApiBase::PROP_NULLABLE => true
 242                                 )
 243                         ),
 244                         '' => array(
 245                                 'ns' => array(
 246                                         ApiBase::PROP_TYPE => 'namespace',
 247                                         ApiBase::PROP_NULLABLE => true
 248                                 ),
 249                                 'title' => array(
 250                                         ApiBase::PROP_TYPE => 'string',
 251                                         ApiBase::PROP_NULLABLE => true
 252                                 ),
 253                                 'pageid' => array(
 254                                         ApiBase::PROP_TYPE => 'integer',
 255                                         ApiBase::PROP_NULLABLE => true
 256                                 ),
 257                                 'revid' => array(
 258                                         ApiBase::PROP_TYPE => 'integer',
 259                                         ApiBase::PROP_NULLABLE => true
 260                                 ),
 261                                 'invalid' => 'boolean',
 262                                 'missing' => 'boolean',
 263                                 'notwatched' => 'boolean',
 264                                 'notificationtimestamp' => array(
 265                                         ApiBase::PROP_TYPE => 'timestamp',
 266                                         ApiBase::PROP_NULLABLE => true
 267                                 )
 268                         )
 269                 );
 270         }
 271
 272         public function getDescription() {
 273                 return array( 'Update the notification timestamp for watched pages.',
 274                         'This affects the highlighting of changed pages in the watchlist and history,',
 275                         'and the sending of email when the "Email me when a page on my watchlist is',
 276                         'changed" preference is enabled'
 277                 );
 278         }
 279
 280         public function getPossibleErrors() {
 281                 $ps = $this->getPageSet();
 282
 283                 return array_merge(
 284                         parent::getPossibleErrors(),
 285                         $ps->getFinalPossibleErrors(),
 286                         $this->getRequireMaxOneParameterErrorMessages(
 287                                 array( 'timestamp', 'torevid', 'newerthanrevid' ) ),
 288                         $this->getRequireOnlyOneParameterErrorMessages(
 289                                 array_merge( array( 'entirewatchlist' ), array_keys( $ps->getFinalParams() ) ) ),
 290                         array(
 291                                 array( 'code' => 'notloggedin', 'info'
 292                                 => 'Anonymous users cannot use watchlist change notifications' ),
 293                                 array( 'code' => 'multpages', 'info' => 'torevid may only be used with a single page' ),
 294                                 array( 'code' => 'multpages', 'info' => 'newerthanrevid may only be used with a single page' ),
 295                         )
 296                 );
 297         }
 298
 299         public function getExamples() {
 300                 return array(
 301                         'api.php?action=setnotificationtimestamp&entirewatchlist=&token=123ABC'
 302                                 => 'Reset the notification status for the entire watchlist',
 303                         'api.php?action=setnotificationtimestamp&titles=Main_page&token=123ABC'
 304                                 => 'Reset the notification status for "Main page"',
 305                         'api.php?action=setnotificationtimestamp&titles=Main_page&' .
 306                                 'timestamp=2012-01-01T00:00:00Z&token=123ABC'
 307                                 => 'Set the notification timestamp for "Main page" so all edits ' .
 308                                         'since 1 January 2012 are unviewed',
 309                 );
 310         }
 311
 312         public function getHelpUrls() {
 313                 return 'https://www.mediawiki.org/wiki/API:SetNotificationTimestamp';
 314         }
 315 }