includes/specials/SpecialWatchlist.php

   1 <?php
   2 /**
   3  * Implements Special:Watchlist
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage Watchlist
  22  */
  23
  24 /**
  25  * Constructor
  26  *
  27  * @param $par Parameter passed to the page
  28  */
  29 function wfSpecialWatchlist( $par ) {
  30         global $wgUser, $wgOut, $wgLang, $wgRequest;
  31         global $wgRCShowWatchingUsers, $wgEnotifWatchlist, $wgShowUpdatedMarker;
  32
  33         // Add feed links
  34         $wlToken = $wgUser->getOption( 'watchlisttoken' );
  35         if (!$wlToken) {
  36                 $wlToken = sha1( mt_rand() . microtime( true ) );
  37                 $wgUser->setOption( 'watchlisttoken', $wlToken );
  38                 $wgUser->saveSettings();
  39         }
  40
  41         global $wgFeedClasses;
  42         $apiParams = array( 'action' => 'feedwatchlist', 'allrev' => 'allrev',
  43                                                 'wlowner' => $wgUser->getName(), 'wltoken' => $wlToken );
  44         $feedTemplate = wfScript('api').'?';
  45
  46         foreach( $wgFeedClasses as $format => $class ) {
  47                 $theseParams = $apiParams + array( 'feedformat' => $format );
  48                 $url = $feedTemplate . wfArrayToCGI( $theseParams );
  49                 $wgOut->addFeedLink( $format, $url );
  50         }
  51
  52         $skin = $wgUser->getSkin();
  53         $specialTitle = SpecialPage::getTitleFor( 'Watchlist' );
  54         $wgOut->setRobotPolicy( 'noindex,nofollow' );
  55
  56         # Anons don't get a watchlist
  57         if( $wgUser->isAnon() ) {
  58                 $wgOut->setPageTitle( wfMsg( 'watchnologin' ) );
  59                 $llink = $skin->linkKnown(
  60                         SpecialPage::getTitleFor( 'Userlogin' ),
  61                         wfMsgHtml( 'loginreqlink' ),
  62                         array(),
  63                         array( 'returnto' => $specialTitle->getPrefixedText() )
  64                 );
  65                 $wgOut->addHTML( wfMsgWikiHtml( 'watchlistanontext', $llink ) );
  66                 return;
  67         }
  68
  69         $wgOut->setPageTitle( wfMsg( 'watchlist' ) );
  70
  71         $sub  = wfMsgExt( 'watchlistfor2', array( 'parseinline', 'replaceafter' ), $wgUser->getName(), WatchlistEditor::buildTools( $wgUser->getSkin() ) );
  72         $wgOut->setSubtitle( $sub );
  73
  74         if( ( $mode = WatchlistEditor::getMode( $wgRequest, $par ) ) !== false ) {
  75                 $editor = new WatchlistEditor();
  76                 $editor->execute( $wgUser, $wgOut, $wgRequest, $mode );
  77                 return;
  78         }
  79
  80         $uid = $wgUser->getId();
  81         if( ($wgEnotifWatchlist || $wgShowUpdatedMarker) && $wgRequest->getVal( 'reset' ) &&
  82                 $wgRequest->wasPosted() )
  83         {
  84                 $wgUser->clearAllNotifications( $uid );
  85                 $wgOut->redirect( $specialTitle->getFullUrl() );
  86                 return;
  87         }
  88
  89         $defaults = array(
  90         /* float */ 'days'      => floatval( $wgUser->getOption( 'watchlistdays' ) ), /* 3.0 or 0.5, watch further below */
  91         /* bool  */ 'hideMinor' => (int)$wgUser->getBoolOption( 'watchlisthideminor' ),
  92         /* bool  */ 'hideBots'  => (int)$wgUser->getBoolOption( 'watchlisthidebots' ),
  93         /* bool  */ 'hideAnons' => (int)$wgUser->getBoolOption( 'watchlisthideanons' ),
  94         /* bool  */ 'hideLiu'   => (int)$wgUser->getBoolOption( 'watchlisthideliu' ),
  95         /* bool  */ 'hidePatrolled' => (int)$wgUser->getBoolOption( 'watchlisthidepatrolled' ),
  96         /* bool  */ 'hideOwn'   => (int)$wgUser->getBoolOption( 'watchlisthideown' ),
  97         /* ?     */ 'namespace' => 'all',
  98         /* ?     */ 'invert'    => false,
  99         );
 100
 101         extract($defaults);
 102
 103         # Extract variables from the request, falling back to user preferences or
 104         # other default values if these don't exist
 105         $prefs['days']      = floatval( $wgUser->getOption( 'watchlistdays' ) );
 106         $prefs['hideminor'] = $wgUser->getBoolOption( 'watchlisthideminor' );
 107         $prefs['hidebots']  = $wgUser->getBoolOption( 'watchlisthidebots' );
 108         $prefs['hideanons'] = $wgUser->getBoolOption( 'watchlisthideanon' );
 109         $prefs['hideliu']   = $wgUser->getBoolOption( 'watchlisthideliu' );
 110         $prefs['hideown' ]  = $wgUser->getBoolOption( 'watchlisthideown' );
 111         $prefs['hidepatrolled' ] = $wgUser->getBoolOption( 'watchlisthidepatrolled' );
 112
 113         # Get query variables
 114         $days      = $wgRequest->getVal(  'days'     , $prefs['days'] );
 115         $hideMinor = $wgRequest->getBool( 'hideMinor', $prefs['hideminor'] );
 116         $hideBots  = $wgRequest->getBool( 'hideBots' , $prefs['hidebots'] );
 117         $hideAnons = $wgRequest->getBool( 'hideAnons', $prefs['hideanons'] );
 118         $hideLiu   = $wgRequest->getBool( 'hideLiu'  , $prefs['hideliu'] );
 119         $hideOwn   = $wgRequest->getBool( 'hideOwn'  , $prefs['hideown'] );
 120         $hidePatrolled   = $wgRequest->getBool( 'hidePatrolled'  , $prefs['hidepatrolled'] );
 121
 122         # Get namespace value, if supplied, and prepare a WHERE fragment
 123         $nameSpace = $wgRequest->getIntOrNull( 'namespace' );
 124         $invert = $wgRequest->getIntOrNull( 'invert' );
 125         if( !is_null( $nameSpace ) ) {
 126                 $nameSpace = intval( $nameSpace );
 127                 if( $invert && $nameSpace !== 'all' )
 128                         $nameSpaceClause = "rc_namespace != $nameSpace";
 129                 else
 130                         $nameSpaceClause = "rc_namespace = $nameSpace";
 131         } else {
 132                 $nameSpace = '';
 133                 $nameSpaceClause = '';
 134         }
 135
 136         $dbr = wfGetDB( DB_SLAVE, 'watchlist' );
 137         $recentchanges = $dbr->tableName( 'recentchanges' );
 138
 139         $watchlistCount = $dbr->selectField( 'watchlist', 'COUNT(*)',
 140                 array( 'wl_user' => $uid ), __METHOD__ );
 141         // Adjust for page X, talk:page X, which are both stored separately,
 142         // but treated together
 143         $nitems = floor($watchlistCount / 2);
 144
 145         if( is_null($days) || !is_numeric($days) ) {
 146                 $big = 1000; /* The magical big */
 147                 if($nitems > $big) {
 148                         # Set default cutoff shorter
 149                         $days = $defaults['days'] = (12.0 / 24.0); # 12 hours...
 150                 } else {
 151                         $days = $defaults['days']; # default cutoff for shortlisters
 152                 }
 153         } else {
 154                 $days = floatval($days);
 155         }
 156
 157         // Dump everything here
 158         $nondefaults = array();
 159
 160         wfAppendToArrayIfNotDefault( 'days'     , $days          , $defaults, $nondefaults);
 161         wfAppendToArrayIfNotDefault( 'hideMinor', (int)$hideMinor, $defaults, $nondefaults );
 162         wfAppendToArrayIfNotDefault( 'hideBots' , (int)$hideBots , $defaults, $nondefaults);
 163         wfAppendToArrayIfNotDefault( 'hideAnons', (int)$hideAnons, $defaults, $nondefaults );
 164         wfAppendToArrayIfNotDefault( 'hideLiu'  , (int)$hideLiu  , $defaults, $nondefaults );
 165         wfAppendToArrayIfNotDefault( 'hideOwn'  , (int)$hideOwn  , $defaults, $nondefaults);
 166         wfAppendToArrayIfNotDefault( 'namespace', $nameSpace     , $defaults, $nondefaults);
 167         wfAppendToArrayIfNotDefault( 'hidePatrolled', (int)$hidePatrolled, $defaults, $nondefaults );
 168
 169         if( $nitems == 0 ) {
 170                 $wgOut->addWikiMsg( 'nowatchlist' );
 171                 return;
 172         }
 173
 174         # Possible where conditions
 175         $conds = array();
 176
 177         if( $days <= 0 ) {
 178                 $andcutoff = '';
 179         } else {
 180                 $conds[] = "rc_timestamp > '".$dbr->timestamp( time() - intval( $days * 86400 ) )."'";
 181         }
 182
 183         # If the watchlist is relatively short, it's simplest to zip
 184         # down its entirety and then sort the results.
 185
 186         # If it's relatively long, it may be worth our while to zip
 187         # through the time-sorted page list checking for watched items.
 188
 189         # Up estimate of watched items by 15% to compensate for talk pages...
 190
 191         # Toggles
 192         if( $hideOwn ) {
 193                 $conds[] = "rc_user != $uid";
 194         }
 195         if( $hideBots ) {
 196                 $conds[] = 'rc_bot = 0';
 197         }
 198         if( $hideMinor ) {
 199                 $conds[] = 'rc_minor = 0';
 200         }
 201         if( $hideLiu ) {
 202                 $conds[] = 'rc_user = 0';
 203         }
 204         if( $hideAnons ) {
 205                 $conds[] = 'rc_user != 0';
 206         }
 207         if ( $wgUser->useRCPatrol() && $hidePatrolled ) {
 208                 $conds[] = 'rc_patrolled != 1';
 209         }
 210         if( $nameSpaceClause ) {
 211                 $conds[] = $nameSpaceClause;
 212         }
 213
 214         # Toggle watchlist content (all recent edits or just the latest)
 215         if( $wgUser->getOption( 'extendwatchlist' )) {
 216                 $limitWatchlist = intval( $wgUser->getOption( 'wllimit' ) );
 217                 $usePage = false;
 218         } else {
 219         # Top log Ids for a page are not stored
 220                 $conds[] = 'rc_this_oldid=page_latest OR rc_type=' . RC_LOG;
 221                 $limitWatchlist = 0;
 222                 $usePage = true;
 223         }
 224
 225         # Show a message about slave lag, if applicable
 226         if( ( $lag = $dbr->getLag() ) > 0 )
 227                 $wgOut->showLagWarning( $lag );
 228
 229         # Create output form
 230         $form  = Xml::fieldset( wfMsg( 'watchlist-options' ), false, array( 'id' => 'mw-watchlist-options' ) );
 231
 232         # Show watchlist header
 233         $form .= wfMsgExt( 'watchlist-details', array( 'parseinline' ), $wgLang->formatNum( $nitems ) );
 234
 235         if( $wgUser->getOption( 'enotifwatchlistpages' ) && $wgEnotifWatchlist) {
 236                 $form .= wfMsgExt( 'wlheader-enotif', 'parse' ) . "\n";
 237         }
 238         if( $wgShowUpdatedMarker ) {
 239                 $form .= Xml::openElement( 'form', array( 'method' => 'post',
 240                                         'action' => $specialTitle->getLocalUrl(),
 241                                         'id' => 'mw-watchlist-resetbutton' ) ) .
 242                                 wfMsgExt( 'wlheader-showupdated', array( 'parseinline' ) ) . ' ' .
 243                                 Xml::submitButton( wfMsg( 'enotif_reset' ), array( 'name' => 'dummy' ) ) .
 244                                 Html::hidden( 'reset', 'all' ) .
 245                                 Xml::closeElement( 'form' );
 246         }
 247         $form .= '<hr />';
 248
 249         $tables = array( 'recentchanges', 'watchlist' );
 250         $fields = array( "{$recentchanges}.*" );
 251         $join_conds = array(
 252                 'watchlist' => array('INNER JOIN',"wl_user='{$uid}' AND wl_namespace=rc_namespace AND wl_title=rc_title"),
 253         );
 254         $options = array( 'ORDER BY' => 'rc_timestamp DESC' );
 255         if( $wgShowUpdatedMarker ) {
 256                 $fields[] = 'wl_notificationtimestamp';
 257         }
 258         if( $limitWatchlist ) {
 259                 $options['LIMIT'] = $limitWatchlist;
 260         }
 261
 262         $rollbacker = $wgUser->isAllowed('rollback');
 263         if ( $usePage || $rollbacker ) {
 264                 $tables[] = 'page';
 265                 $join_conds['page'] = array('LEFT JOIN','rc_cur_id=page_id');
 266                 if ($rollbacker)
 267                         $fields[] = 'page_latest';
 268         }
 269
 270         ChangeTags::modifyDisplayQuery( $tables, $fields, $conds, $join_conds, $options, '' );
 271         wfRunHooks('SpecialWatchlistQuery', array(&$conds,&$tables,&$join_conds,&$fields) );
 272
 273         $res = $dbr->select( $tables, $fields, $conds, __METHOD__, $options, $join_conds );
 274         $numRows = $dbr->numRows( $res );
 275
 276         /* Start bottom header */
 277
 278         $wlInfo = '';
 279         if( $days >= 1 ) {
 280                 $wlInfo = wfMsgExt( 'rcnote', 'parseinline',
 281                                 $wgLang->formatNum( $numRows ),
 282                                 $wgLang->formatNum( $days ),
 283                                 $wgLang->timeAndDate( wfTimestampNow(), true ),
 284                                 $wgLang->date( wfTimestampNow(), true ),
 285                                 $wgLang->time( wfTimestampNow(), true )
 286                         ) . '<br />';
 287         } elseif( $days > 0 ) {
 288                 $wlInfo = wfMsgExt( 'wlnote', 'parseinline',
 289                                 $wgLang->formatNum( $numRows ),
 290                                 $wgLang->formatNum( round($days*24) )
 291                         ) . '<br />';
 292         }
 293
 294         $cutofflinks = "\n" . wlCutoffLinks( $days, 'Watchlist', $nondefaults ) . "<br />\n";
 295
 296         $thisTitle = SpecialPage::getTitleFor( 'Watchlist' );
 297
 298         # Spit out some control panel links
 299         $links[] = wlShowHideLink( $nondefaults, 'rcshowhideminor', 'hideMinor', $hideMinor );
 300         $links[] = wlShowHideLink( $nondefaults, 'rcshowhidebots', 'hideBots', $hideBots );
 301         $links[] = wlShowHideLink( $nondefaults, 'rcshowhideanons', 'hideAnons', $hideAnons );
 302         $links[] = wlShowHideLink( $nondefaults, 'rcshowhideliu', 'hideLiu', $hideLiu );
 303         $links[] = wlShowHideLink( $nondefaults, 'rcshowhidemine', 'hideOwn', $hideOwn );
 304
 305         if( $wgUser->useRCPatrol() ) {
 306                 $links[] = wlShowHideLink( $nondefaults, 'rcshowhidepatr', 'hidePatrolled', $hidePatrolled );
 307         }
 308
 309         # Namespace filter and put the whole form together.
 310         $form .= $wlInfo;
 311         $form .= $cutofflinks;
 312         $form .= $wgLang->pipeList( $links );
 313         $form .= Xml::openElement( 'form', array( 'method' => 'post', 'action' => $thisTitle->getLocalUrl(), 'id' => 'mw-watchlist-form-namespaceselector' ) );
 314         $form .= '<hr /><p>';
 315         $form .= Xml::label( wfMsg( 'namespace' ), 'namespace' ) . '&#160;';
 316         $form .= Xml::namespaceSelector( $nameSpace, '' ) . '&#160;';
 317         $form .= Xml::checkLabel( wfMsg('invert'), 'invert', 'nsinvert', $invert ) . '&#160;';
 318         $form .= Xml::submitButton( wfMsg( 'allpagessubmit' ) ) . '</p>';
 319         $form .= Html::hidden( 'days', $days );
 320         if( $hideMinor )
 321                 $form .= Html::hidden( 'hideMinor', 1 );
 322         if( $hideBots )
 323                 $form .= Html::hidden( 'hideBots', 1 );
 324         if( $hideAnons )
 325                 $form .= Html::hidden( 'hideAnons', 1 );
 326         if( $hideLiu )
 327                 $form .= Html::hidden( 'hideLiu', 1 );
 328         if( $hideOwn )
 329                 $form .= Html::hidden( 'hideOwn', 1 );
 330         $form .= Xml::closeElement( 'form' );
 331         $form .= Xml::closeElement( 'fieldset' );
 332         $wgOut->addHTML( $form );
 333
 334         # If there's nothing to show, stop here
 335         if( $numRows == 0 ) {
 336                 $wgOut->addWikiMsg( 'watchnochange' );
 337                 return;
 338         }
 339
 340         /* End bottom header */
 341
 342         /* Do link batch query */
 343         $linkBatch = new LinkBatch;
 344         foreach ( $res as $row ) {
 345                 $userNameUnderscored = str_replace( ' ', '_', $row->rc_user_text );
 346                 if ( $row->rc_user != 0 ) {
 347                         $linkBatch->add( NS_USER, $userNameUnderscored );
 348                 }
 349                 $linkBatch->add( NS_USER_TALK, $userNameUnderscored );
 350
 351                 $linkBatch->add( $row->rc_namespace, $row->rc_title );
 352         }
 353         $linkBatch->execute();
 354         $dbr->dataSeek( $res, 0 );
 355
 356         $list = ChangesList::newFromUser( $wgUser );
 357         $list->setWatchlistDivs();
 358
 359         $s = $list->beginRecentChangesList();
 360         $counter = 1;
 361         foreach ( $res as $obj ) {
 362                 # Make RC entry
 363                 $rc = RecentChange::newFromRow( $obj );
 364                 $rc->counter = $counter++;
 365
 366                 if ( $wgShowUpdatedMarker ) {
 367                         $updated = $obj->wl_notificationtimestamp;
 368                 } else {
 369                         $updated = false;
 370                 }
 371
 372                 if ($wgRCShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 373                         $rc->numberofWatchingusers = $dbr->selectField( 'watchlist',
 374                                 'COUNT(*)',
 375                                 array(
 376                                         'wl_namespace' => $obj->rc_namespace,
 377                                         'wl_title' => $obj->rc_title,
 378                                 ),
 379                                 __METHOD__ );
 380                 } else {
 381                         $rc->numberofWatchingusers = 0;
 382                 }
 383
 384                 $s .= $list->recentChangesLine( $rc, $updated, $counter );
 385         }
 386         $s .= $list->endRecentChangesList();
 387
 388         $wgOut->addHTML( $s );
 389 }
 390
 391 function wlShowHideLink( $options, $message, $name, $value ) {
 392         global $wgUser;
 393
 394         $showLinktext = wfMsgHtml( 'show' );
 395         $hideLinktext = wfMsgHtml( 'hide' );
 396         $title = SpecialPage::getTitleFor( 'Watchlist' );
 397         $skin = $wgUser->getSkin();
 398
 399         $label = $value ? $showLinktext : $hideLinktext;
 400         $options[$name] = 1 - (int) $value;
 401
 402         return wfMsgHtml( $message, $skin->linkKnown( $title, $label, array(), $options ) );
 403 }
 404
 405
 406 function wlHoursLink( $h, $page, $options = array() ) {
 407         global $wgUser, $wgLang, $wgContLang;
 408
 409         $sk = $wgUser->getSkin();
 410         $title = Title::newFromText( $wgContLang->specialPage( $page ) );
 411         $options['days'] = ($h / 24.0);
 412
 413         $s = $sk->linkKnown(
 414                 $title,
 415                 $wgLang->formatNum( $h ),
 416                 array(),
 417                 $options
 418         );
 419
 420         return $s;
 421 }
 422
 423 function wlDaysLink( $d, $page, $options = array() ) {
 424         global $wgUser, $wgLang, $wgContLang;
 425
 426         $sk = $wgUser->getSkin();
 427         $title = Title::newFromText( $wgContLang->specialPage( $page ) );
 428         $options['days'] = $d;
 429         $message = ($d ? $wgLang->formatNum( $d ) : wfMsgHtml( 'watchlistall2' ) );
 430
 431         $s = $sk->linkKnown(
 432                 $title,
 433                 $message,
 434                 array(),
 435                 $options
 436         );
 437
 438         return $s;
 439 }
 440
 441 /**
 442  * Returns html
 443  */
 444 function wlCutoffLinks( $days, $page = 'Watchlist', $options = array() ) {
 445         global $wgLang;
 446
 447         $hours = array( 1, 2, 6, 12 );
 448         $days = array( 1, 3, 7 );
 449         $i = 0;
 450         foreach( $hours as $h ) {
 451                 $hours[$i++] = wlHoursLink( $h, $page, $options );
 452         }
 453         $i = 0;
 454         foreach( $days as $d ) {
 455                 $days[$i++] = wlDaysLink( $d, $page, $options );
 456         }
 457         return wfMsgExt('wlshowlast',
 458                 array('parseinline', 'replaceafter'),
 459                 $wgLang->pipeList( $hours ),
 460                 $wgLang->pipeList( $days ),
 461                 wlDaysLink( 0, $page, $options ) );
 462 }
 463
 464 /**
 465  * Count the number of items on a user's watchlist
 466  *
 467  * @param $user User object
 468  * @param $talk Boolean: include talk pages
 469  * @return Integer
 470  */
 471 function wlCountItems( &$user, $talk = true ) {
 472         $dbr = wfGetDB( DB_SLAVE, 'watchlist' );
 473
 474         # Fetch the raw count
 475         $res = $dbr->select( 'watchlist', 'COUNT(*) AS count',
 476                 array( 'wl_user' => $user->mId ), 'wlCountItems' );
 477         $row = $dbr->fetchObject( $res );
 478         $count = $row->count;
 479
 480         # Halve to remove talk pages if needed
 481         if( !$talk )
 482                 $count = floor( $count / 2 );
 483
 484         return( $count );
 485 }