includes/specials/SpecialRecentchanges.php

   1 <?php
   2 /**
   3  * Implements Special:Recentchanges
   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
  22  */
  23
  24 /**
  25  * A special page that lists last changes made to the wiki
  26  *
  27  * @ingroup SpecialPage
  28  */
  29 class SpecialRecentChanges extends ChangesListSpecialPage {
  30         /**
  31          * The feed format to output as (either 'rss' or 'atom'), or null if no
  32          * feed output was requested
  33          *
  34          * @var string $feedFormat
  35          */
  36         protected $feedFormat;
  37
  38         public function __construct( $name = 'Recentchanges', $restriction = '' ) {
  39                 parent::__construct( $name, $restriction );
  40         }
  41
  42         /**
  43          * Main execution point
  44          *
  45          * @param string $subpage
  46          */
  47         public function execute( $subpage ) {
  48                 $this->rcSubpage = $subpage;
  49                 $this->feedFormat = $this->including() ? null : $this->getRequest()->getVal( 'feed' );
  50
  51                 # 10 seconds server-side caching max
  52                 $this->getOutput()->setSquidMaxage( 10 );
  53                 # Check if the client has a cached version
  54                 $lastmod = $this->checkLastModified( $this->feedFormat );
  55                 if ( $lastmod === false ) {
  56                         return;
  57                 }
  58
  59                 $opts = $this->getOptions();
  60                 $this->setHeaders();
  61                 $this->outputHeader();
  62                 $this->addModules();
  63
  64                 // Fetch results, prepare a batch link existence check query
  65                 $conds = $this->buildMainQueryConds( $opts );
  66                 $rows = $this->doMainQuery( $conds, $opts );
  67                 if ( $rows === false ) {
  68                         if ( !$this->including() ) {
  69                                 $this->doHeader( $opts );
  70                         }
  71
  72                         return;
  73                 }
  74
  75                 if ( !$this->feedFormat ) {
  76                         $batch = new LinkBatch;
  77                         foreach ( $rows as $row ) {
  78                                 $batch->add( NS_USER, $row->rc_user_text );
  79                                 $batch->add( NS_USER_TALK, $row->rc_user_text );
  80                                 $batch->add( $row->rc_namespace, $row->rc_title );
  81                         }
  82                         $batch->execute();
  83                 }
  84                 if ( $this->feedFormat ) {
  85                         list( $changesFeed, $formatter ) = $this->getFeedObject( $this->feedFormat );
  86                         /** @var ChangesFeed $changesFeed */
  87                         $changesFeed->execute( $formatter, $rows, $lastmod, $opts );
  88                 } else {
  89                         $this->webOutput( $rows, $opts );
  90                 }
  91
  92                 $rows->free();
  93         }
  94
  95         /**
  96          * Get a FormOptions object containing the default options
  97          *
  98          * @return FormOptions
  99          */
 100         public function getDefaultOptions() {
 101                 $opts = parent::getDefaultOptions();
 102                 $user = $this->getUser();
 103
 104                 $opts->add( 'days', $user->getIntOption( 'rcdays' ) );
 105                 $opts->add( 'limit', $user->getIntOption( 'rclimit' ) );
 106                 $opts->add( 'from', '' );
 107
 108                 $opts->add( 'hideminor', $user->getBoolOption( 'hideminor' ) );
 109                 $opts->add( 'hidebots', true );
 110                 $opts->add( 'hideanons', false );
 111                 $opts->add( 'hideliu', false );
 112                 $opts->add( 'hidepatrolled', $user->getBoolOption( 'hidepatrolled' ) );
 113                 $opts->add( 'hidemyself', false );
 114
 115                 $opts->add( 'categories', '' );
 116                 $opts->add( 'categories_any', false );
 117                 $opts->add( 'tagfilter', '' );
 118
 119                 return $opts;
 120         }
 121
 122         /**
 123          * Get custom show/hide filters
 124          *
 125          * @return array Map of filter URL param names to properties (msg/default)
 126          */
 127         protected function getCustomFilters() {
 128                 if ( $this->customFilters === null ) {
 129                         $this->customFilters = array();
 130                         wfRunHooks( 'SpecialRecentChangesFilters', array( $this, &$this->customFilters ) );
 131                 }
 132
 133                 return $this->customFilters;
 134         }
 135
 136         /**
 137          * Process $par and put options found in $opts. Used when including the page.
 138          *
 139          * @param string $par
 140          * @param FormOptions $opts
 141          */
 142         public function parseParameters( $par, FormOptions $opts ) {
 143                 $bits = preg_split( '/\s*,\s*/', trim( $par ) );
 144                 foreach ( $bits as $bit ) {
 145                         if ( 'hidebots' === $bit ) {
 146                                 $opts['hidebots'] = true;
 147                         }
 148                         if ( 'bots' === $bit ) {
 149                                 $opts['hidebots'] = false;
 150                         }
 151                         if ( 'hideminor' === $bit ) {
 152                                 $opts['hideminor'] = true;
 153                         }
 154                         if ( 'minor' === $bit ) {
 155                                 $opts['hideminor'] = false;
 156                         }
 157                         if ( 'hideliu' === $bit ) {
 158                                 $opts['hideliu'] = true;
 159                         }
 160                         if ( 'hidepatrolled' === $bit ) {
 161                                 $opts['hidepatrolled'] = true;
 162                         }
 163                         if ( 'hideanons' === $bit ) {
 164                                 $opts['hideanons'] = true;
 165                         }
 166                         if ( 'hidemyself' === $bit ) {
 167                                 $opts['hidemyself'] = true;
 168                         }
 169
 170                         if ( is_numeric( $bit ) ) {
 171                                 $opts['limit'] = $bit;
 172                         }
 173
 174                         $m = array();
 175                         if ( preg_match( '/^limit=(\d+)$/', $bit, $m ) ) {
 176                                 $opts['limit'] = $m[1];
 177                         }
 178                         if ( preg_match( '/^days=(\d+)$/', $bit, $m ) ) {
 179                                 $opts['days'] = $m[1];
 180                         }
 181                         if ( preg_match( '/^namespace=(\d+)$/', $bit, $m ) ) {
 182                                 $opts['namespace'] = $m[1];
 183                         }
 184                 }
 185         }
 186
 187         public function validateOptions( FormOptions $opts ) {
 188                 global $wgFeedLimit;
 189                 $opts->validateIntBounds( 'limit', 0, $this->feedFormat ? $wgFeedLimit : 5000 );
 190         }
 191
 192         /**
 193          * Return an array of conditions depending of options set in $opts
 194          *
 195          * @param FormOptions $opts
 196          * @return array
 197          */
 198         public function buildMainQueryConds( FormOptions $opts ) {
 199                 $dbr = wfGetDB( DB_SLAVE );
 200                 $conds = array();
 201
 202                 # It makes no sense to hide both anons and logged-in users
 203                 # Where this occurs, force anons to be shown
 204                 $forcebot = false;
 205                 if ( $opts['hideanons'] && $opts['hideliu'] ) {
 206                         # Check if the user wants to show bots only
 207                         if ( $opts['hidebots'] ) {
 208                                 $opts['hideanons'] = false;
 209                         } else {
 210                                 $forcebot = true;
 211                                 $opts['hidebots'] = false;
 212                         }
 213                 }
 214
 215                 // Calculate cutoff
 216                 $cutoff_unixtime = time() - ( $opts['days'] * 86400 );
 217                 $cutoff_unixtime = $cutoff_unixtime - ( $cutoff_unixtime % 86400 );
 218                 $cutoff = $dbr->timestamp( $cutoff_unixtime );
 219
 220                 $fromValid = preg_match( '/^[0-9]{14}$/', $opts['from'] );
 221                 if ( $fromValid && $opts['from'] > wfTimestamp( TS_MW, $cutoff ) ) {
 222                         $cutoff = $dbr->timestamp( $opts['from'] );
 223                 } else {
 224                         $opts->reset( 'from' );
 225                 }
 226
 227                 $conds[] = 'rc_timestamp >= ' . $dbr->addQuotes( $cutoff );
 228
 229                 $hidePatrol = $this->getUser()->useRCPatrol() && $opts['hidepatrolled'];
 230                 $hideLoggedInUsers = $opts['hideliu'] && !$forcebot;
 231                 $hideAnonymousUsers = $opts['hideanons'] && !$forcebot;
 232
 233                 if ( $opts['hideminor'] ) {
 234                         $conds['rc_minor'] = 0;
 235                 }
 236                 if ( $opts['hidebots'] ) {
 237                         $conds['rc_bot'] = 0;
 238                 }
 239                 if ( $hidePatrol ) {
 240                         $conds['rc_patrolled'] = 0;
 241                 }
 242                 if ( $forcebot ) {
 243                         $conds['rc_bot'] = 1;
 244                 }
 245                 if ( $hideLoggedInUsers ) {
 246                         $conds[] = 'rc_user = 0';
 247                 }
 248                 if ( $hideAnonymousUsers ) {
 249                         $conds[] = 'rc_user != 0';
 250                 }
 251
 252                 if ( $opts['hidemyself'] ) {
 253                         if ( $this->getUser()->getId() ) {
 254                                 $conds[] = 'rc_user != ' . $dbr->addQuotes( $this->getUser()->getId() );
 255                         } else {
 256                                 $conds[] = 'rc_user_text != ' . $dbr->addQuotes( $this->getUser()->getName() );
 257                         }
 258                 }
 259
 260                 # Namespace filtering
 261                 if ( $opts['namespace'] !== '' ) {
 262                         $selectedNS = $dbr->addQuotes( $opts['namespace'] );
 263                         $operator = $opts['invert'] ? '!=' : '=';
 264                         $boolean = $opts['invert'] ? 'AND' : 'OR';
 265
 266                         # namespace association (bug 2429)
 267                         if ( !$opts['associated'] ) {
 268                                 $condition = "rc_namespace $operator $selectedNS";
 269                         } else {
 270                                 # Also add the associated namespace
 271                                 $associatedNS = $dbr->addQuotes(
 272                                         MWNamespace::getAssociated( $opts['namespace'] )
 273                                 );
 274                                 $condition = "(rc_namespace $operator $selectedNS "
 275                                         . $boolean
 276                                         . " rc_namespace $operator $associatedNS)";
 277                         }
 278
 279                         $conds[] = $condition;
 280                 }
 281
 282                 return $conds;
 283         }
 284
 285         /**
 286          * Process the query
 287          *
 288          * @param array $conds
 289          * @param FormOptions $opts
 290          * @return bool|ResultWrapper Result or false (for Recentchangeslinked only)
 291          */
 292         public function doMainQuery( $conds, $opts ) {
 293                 $tables = array( 'recentchanges' );
 294                 $join_conds = array();
 295                 $query_options = array();
 296
 297                 $uid = $this->getUser()->getId();
 298                 $dbr = wfGetDB( DB_SLAVE );
 299                 $limit = $opts['limit'];
 300                 $namespace = $opts['namespace'];
 301                 $invert = $opts['invert'];
 302                 $associated = $opts['associated'];
 303
 304                 $fields = RecentChange::selectFields();
 305                 // JOIN on watchlist for users
 306                 if ( $uid && $this->getUser()->isAllowed( 'viewmywatchlist' ) ) {
 307                         $tables[] = 'watchlist';
 308                         $fields[] = 'wl_user';
 309                         $fields[] = 'wl_notificationtimestamp';
 310                         $join_conds['watchlist'] = array( 'LEFT JOIN', array(
 311                                 'wl_user' => $uid,
 312                                 'wl_title=rc_title',
 313                                 'wl_namespace=rc_namespace'
 314                         ) );
 315                 }
 316                 if ( $this->getUser()->isAllowed( 'rollback' ) ) {
 317                         $tables[] = 'page';
 318                         $fields[] = 'page_latest';
 319                         $join_conds['page'] = array( 'LEFT JOIN', 'rc_cur_id=page_id' );
 320                 }
 321                 // Tag stuff.
 322                 ChangeTags::modifyDisplayQuery(
 323                         $tables,
 324                         $fields,
 325                         $conds,
 326                         $join_conds,
 327                         $query_options,
 328                         $opts['tagfilter']
 329                 );
 330
 331                 if ( !wfRunHooks( 'SpecialRecentChangesQuery',
 332                         array( &$conds, &$tables, &$join_conds, $opts, &$query_options, &$fields ) )
 333                 ) {
 334                         return false;
 335                 }
 336
 337                 // rc_new is not an ENUM, but adding a redundant rc_new IN (0,1) gives mysql enough
 338                 // knowledge to use an index merge if it wants (it may use some other index though).
 339                 return $dbr->select(
 340                         $tables,
 341                         $fields,
 342                         $conds + array( 'rc_new' => array( 0, 1 ) ),
 343                         __METHOD__,
 344                         array( 'ORDER BY' => 'rc_timestamp DESC', 'LIMIT' => $limit ) + $query_options,
 345                         $join_conds
 346                 );
 347         }
 348
 349         /**
 350          * Send output to the OutputPage object, only called if not used feeds
 351          *
 352          * @param array $rows Database rows
 353          * @param FormOptions $opts
 354          */
 355         public function webOutput( $rows, $opts ) {
 356                 global $wgRCShowWatchingUsers, $wgShowUpdatedMarker, $wgAllowCategorizedRecentChanges;
 357
 358                 // Build the final data
 359
 360                 if ( $wgAllowCategorizedRecentChanges ) {
 361                         $this->filterByCategories( $rows, $opts );
 362                 }
 363
 364                 $limit = $opts['limit'];
 365
 366                 $showWatcherCount = $wgRCShowWatchingUsers && $this->getUser()->getOption( 'shownumberswatching' );
 367                 $watcherCache = array();
 368
 369                 $dbr = wfGetDB( DB_SLAVE );
 370
 371                 $counter = 1;
 372                 $list = ChangesList::newFromContext( $this->getContext() );
 373
 374                 $rclistOutput = $list->beginRecentChangesList();
 375                 foreach ( $rows as $obj ) {
 376                         if ( $limit == 0 ) {
 377                                 break;
 378                         }
 379                         $rc = RecentChange::newFromRow( $obj );
 380                         $rc->counter = $counter++;
 381                         # Check if the page has been updated since the last visit
 382                         if ( $wgShowUpdatedMarker && !empty( $obj->wl_notificationtimestamp ) ) {
 383                                 $rc->notificationtimestamp = ( $obj->rc_timestamp >= $obj->wl_notificationtimestamp );
 384                         } else {
 385                                 $rc->notificationtimestamp = false; // Default
 386                         }
 387                         # Check the number of users watching the page
 388                         $rc->numberofWatchingusers = 0; // Default
 389                         if ( $showWatcherCount && $obj->rc_namespace >= 0 ) {
 390                                 if ( !isset( $watcherCache[$obj->rc_namespace][$obj->rc_title] ) ) {
 391                                         $watcherCache[$obj->rc_namespace][$obj->rc_title] =
 392                                                 $dbr->selectField(
 393                                                         'watchlist',
 394                                                         'COUNT(*)',
 395                                                         array(
 396                                                                 'wl_namespace' => $obj->rc_namespace,
 397                                                                 'wl_title' => $obj->rc_title,
 398                                                         ),
 399                                                         __METHOD__ . '-watchers'
 400                                                 );
 401                                 }
 402                                 $rc->numberofWatchingusers = $watcherCache[$obj->rc_namespace][$obj->rc_title];
 403                         }
 404
 405                         $changeLine = $list->recentChangesLine( $rc, !empty( $obj->wl_user ), $counter );
 406                         if ( $changeLine !== false ) {
 407                                 $rclistOutput .= $changeLine;
 408                                 --$limit;
 409                         }
 410                 }
 411                 $rclistOutput .= $list->endRecentChangesList();
 412
 413                 // Print things out
 414
 415                 if ( !$this->including() ) {
 416                         // Output options box
 417                         $this->doHeader( $opts );
 418                 }
 419
 420                 // And now for the content
 421                 $feedQuery = $this->getFeedQuery();
 422                 if ( $feedQuery !== '' ) {
 423                         $this->getOutput()->setFeedAppendQuery( $feedQuery );
 424                 } else {
 425                         $this->getOutput()->setFeedAppendQuery( false );
 426                 }
 427
 428                 if ( $rows->numRows() === 0 ) {
 429                         $this->getOutput()->addHtml(
 430                                 '<div class="mw-changeslist-empty">' . $this->msg( 'recentchanges-noresult' )->parse() . '</div>'
 431                         );
 432                 } else {
 433                         $this->getOutput()->addHTML( $rclistOutput );
 434                 }
 435         }
 436
 437         /**
 438          * Return the text to be displayed above the changes
 439          *
 440          * @param FormOptions $opts
 441          * @return string XHTML
 442          */
 443         public function doHeader( $opts ) {
 444                 global $wgScript;
 445
 446                 $this->setTopText( $opts );
 447
 448                 $defaults = $opts->getAllValues();
 449                 $nondefaults = $opts->getChangedValues();
 450
 451                 $panel = array();
 452                 $panel[] = self::makeLegend( $this->getContext() );
 453                 $panel[] = $this->optionsPanel( $defaults, $nondefaults );
 454                 $panel[] = '<hr />';
 455
 456                 $extraOpts = $this->getExtraOptions( $opts );
 457                 $extraOptsCount = count( $extraOpts );
 458                 $count = 0;
 459                 $submit = ' ' . Xml::submitbutton( $this->msg( 'allpagessubmit' )->text() );
 460
 461                 $out = Xml::openElement( 'table', array( 'class' => 'mw-recentchanges-table' ) );
 462                 foreach ( $extraOpts as $name => $optionRow ) {
 463                         # Add submit button to the last row only
 464                         ++$count;
 465                         $addSubmit = ( $count === $extraOptsCount ) ? $submit : '';
 466
 467                         $out .= Xml::openElement( 'tr' );
 468                         if ( is_array( $optionRow ) ) {
 469                                 $out .= Xml::tags(
 470                                         'td',
 471                                         array( 'class' => 'mw-label mw-' . $name . '-label' ),
 472                                         $optionRow[0]
 473                                 );
 474                                 $out .= Xml::tags(
 475                                         'td',
 476                                         array( 'class' => 'mw-input' ),
 477                                         $optionRow[1] . $addSubmit
 478                                 );
 479                         } else {
 480                                 $out .= Xml::tags(
 481                                         'td',
 482                                         array( 'class' => 'mw-input', 'colspan' => 2 ),
 483                                         $optionRow . $addSubmit
 484                                 );
 485                         }
 486                         $out .= Xml::closeElement( 'tr' );
 487                 }
 488                 $out .= Xml::closeElement( 'table' );
 489
 490                 $unconsumed = $opts->getUnconsumedValues();
 491                 foreach ( $unconsumed as $key => $value ) {
 492                         $out .= Html::hidden( $key, $value );
 493                 }
 494
 495                 $t = $this->getPageTitle();
 496                 $out .= Html::hidden( 'title', $t->getPrefixedText() );
 497                 $form = Xml::tags( 'form', array( 'action' => $wgScript ), $out );
 498                 $panel[] = $form;
 499                 $panelString = implode( "\n", $panel );
 500
 501                 $this->getOutput()->addHTML(
 502                         Xml::fieldset(
 503                                 $this->msg( 'recentchanges-legend' )->text(),
 504                                 $panelString,
 505                                 array( 'class' => 'rcoptions' )
 506                         )
 507                 );
 508
 509                 $this->setBottomText( $opts );
 510         }
 511
 512         /**
 513          * Send the text to be displayed above the options
 514          *
 515          * @param FormOptions $opts Unused
 516          */
 517         function setTopText( FormOptions $opts ) {
 518                 global $wgContLang;
 519
 520                 $message = $this->msg( 'recentchangestext' )->inContentLanguage();
 521                 if ( !$message->isDisabled() ) {
 522                         $this->getOutput()->addWikiText(
 523                                 Html::rawElement( 'p',
 524                                         array( 'lang' => $wgContLang->getCode(), 'dir' => $wgContLang->getDir() ),
 525                                         "\n" . $message->plain() . "\n"
 526                                 ),
 527                                 /* $lineStart */ false,
 528                                 /* $interface */ false
 529                         );
 530                 }
 531         }
 532
 533         /**
 534          * Get options to be displayed in a form
 535          *
 536          * @param FormOptions $opts
 537          * @return array
 538          */
 539         function getExtraOptions( $opts ) {
 540                 $opts->consumeValues( array(
 541                         'namespace', 'invert', 'associated', 'tagfilter', 'categories', 'categories_any'
 542                 ) );
 543
 544                 $extraOpts = array();
 545                 $extraOpts['namespace'] = $this->namespaceFilterForm( $opts );
 546
 547                 global $wgAllowCategorizedRecentChanges;
 548                 if ( $wgAllowCategorizedRecentChanges ) {
 549                         $extraOpts['category'] = $this->categoryFilterForm( $opts );
 550                 }
 551
 552                 $tagFilter = ChangeTags::buildTagFilterSelector( $opts['tagfilter'] );
 553                 if ( count( $tagFilter ) ) {
 554                         $extraOpts['tagfilter'] = $tagFilter;
 555                 }
 556
 557                 // Don't fire the hook for subclasses. (Or should we?)
 558                 if ( $this->getName() === 'Recentchanges' ) {
 559                         wfRunHooks( 'SpecialRecentChangesPanel', array( &$extraOpts, $opts ) );
 560                 }
 561
 562                 return $extraOpts;
 563         }
 564
 565         /**
 566          * Add page-specific modules.
 567          */
 568         protected function addModules() {
 569                 parent::addModules();
 570                 $out = $this->getOutput();
 571                 $out->addModules( 'mediawiki.special.recentchanges' );
 572         }
 573
 574         /**
 575          * Get last modified date, for client caching
 576          * Don't use this if we are using the patrol feature, patrol changes don't
 577          * update the timestamp
 578          *
 579          * @param string $feedFormat
 580          * @return string|bool
 581          */
 582         public function checkLastModified( $feedFormat ) {
 583                 $dbr = wfGetDB( DB_SLAVE );
 584                 $lastmod = $dbr->selectField( 'recentchanges', 'MAX(rc_timestamp)', false, __METHOD__ );
 585                 if ( $feedFormat || !$this->getUser()->useRCPatrol() ) {
 586                         if ( $lastmod && $this->getOutput()->checkLastModified( $lastmod ) ) {
 587                                 # Client cache fresh and headers sent, nothing more to do.
 588                                 return false;
 589                         }
 590                 }
 591
 592                 return $lastmod;
 593         }
 594
 595         /**
 596          * Return an array with a ChangesFeed object and ChannelFeed object
 597          *
 598          * @param string $feedFormat Feed's format (either 'rss' or 'atom')
 599          * @return array
 600          */
 601         public function getFeedObject( $feedFormat ) {
 602                 $changesFeed = new ChangesFeed( $feedFormat, 'rcfeed' );
 603                 $formatter = $changesFeed->getFeedObject(
 604                         $this->msg( 'recentchanges' )->inContentLanguage()->text(),
 605                         $this->msg( 'recentchanges-feed-description' )->inContentLanguage()->text(),
 606                         $this->getPageTitle()->getFullURL()
 607                 );
 608
 609                 return array( $changesFeed, $formatter );
 610         }
 611
 612         /**
 613          * Get the query string to append to feed link URLs.
 614          *
 615          * @return string
 616          */
 617         public function getFeedQuery() {
 618                 global $wgFeedLimit;
 619
 620                 $this->getOptions()->validateIntBounds( 'limit', 0, $wgFeedLimit );
 621                 $options = $this->getOptions()->getChangedValues();
 622
 623                 // wfArrayToCgi() omits options set to null or false
 624                 foreach ( $options as &$value ) {
 625                         if ( $value === false ) {
 626                                 $value = '0';
 627                         }
 628                 }
 629                 unset( $value );
 630
 631                 return wfArrayToCgi( $options );
 632         }
 633
 634         /**
 635          * Creates the choose namespace selection
 636          *
 637          * @param FormOptions $opts
 638          * @return string
 639          */
 640         protected function namespaceFilterForm( FormOptions $opts ) {
 641                 $nsSelect = Html::namespaceSelector(
 642                         array( 'selected' => $opts['namespace'], 'all' => '' ),
 643                         array( 'name' => 'namespace', 'id' => 'namespace' )
 644                 );
 645                 $nsLabel = Xml::label( $this->msg( 'namespace' )->text(), 'namespace' );
 646                 $invert = Xml::checkLabel(
 647                         $this->msg( 'invert' )->text(), 'invert', 'nsinvert',
 648                         $opts['invert'],
 649                         array( 'title' => $this->msg( 'tooltip-invert' )->text() )
 650                 );
 651                 $associated = Xml::checkLabel(
 652                         $this->msg( 'namespace_association' )->text(), 'associated', 'nsassociated',
 653                         $opts['associated'],
 654                         array( 'title' => $this->msg( 'tooltip-namespace_association' )->text() )
 655                 );
 656
 657                 return array( $nsLabel, "$nsSelect $invert $associated" );
 658         }
 659
 660         /**
 661          * Create a input to filter changes by categories
 662          *
 663          * @param FormOptions $opts
 664          * @return array
 665          */
 666         protected function categoryFilterForm( FormOptions $opts ) {
 667                 list( $label, $input ) = Xml::inputLabelSep( $this->msg( 'rc_categories' )->text(),
 668                         'categories', 'mw-categories', false, $opts['categories'] );
 669
 670                 $input .= ' ' . Xml::checkLabel( $this->msg( 'rc_categories_any' )->text(),
 671                         'categories_any', 'mw-categories_any', $opts['categories_any'] );
 672
 673                 return array( $label, $input );
 674         }
 675
 676         /**
 677          * Filter $rows by categories set in $opts
 678          *
 679          * @param array $rows Database rows
 680          * @param FormOptions $opts
 681          */
 682         function filterByCategories( &$rows, FormOptions $opts ) {
 683                 $categories = array_map( 'trim', explode( '|', $opts['categories'] ) );
 684
 685                 if ( !count( $categories ) ) {
 686                         return;
 687                 }
 688
 689                 # Filter categories
 690                 $cats = array();
 691                 foreach ( $categories as $cat ) {
 692                         $cat = trim( $cat );
 693                         if ( $cat == '' ) {
 694                                 continue;
 695                         }
 696                         $cats[] = $cat;
 697                 }
 698
 699                 # Filter articles
 700                 $articles = array();
 701                 $a2r = array();
 702                 $rowsarr = array();
 703                 foreach ( $rows as $k => $r ) {
 704                         $nt = Title::makeTitle( $r->rc_namespace, $r->rc_title );
 705                         $id = $nt->getArticleID();
 706                         if ( $id == 0 ) {
 707                                 continue; # Page might have been deleted...
 708                         }
 709                         if ( !in_array( $id, $articles ) ) {
 710                                 $articles[] = $id;
 711                         }
 712                         if ( !isset( $a2r[$id] ) ) {
 713                                 $a2r[$id] = array();
 714                         }
 715                         $a2r[$id][] = $k;
 716                         $rowsarr[$k] = $r;
 717                 }
 718
 719                 # Shortcut?
 720                 if ( !count( $articles ) || !count( $cats ) ) {
 721                         return;
 722                 }
 723
 724                 # Look up
 725                 $c = new Categoryfinder;
 726                 $c->seed( $articles, $cats, $opts['categories_any'] ? 'OR' : 'AND' );
 727                 $match = $c->run();
 728
 729                 # Filter
 730                 $newrows = array();
 731                 foreach ( $match as $id ) {
 732                         foreach ( $a2r[$id] as $rev ) {
 733                                 $k = $rev;
 734                                 $newrows[$k] = $rowsarr[$k];
 735                         }
 736                 }
 737                 $rows = $newrows;
 738         }
 739
 740         /**
 741          * Makes change an option link which carries all the other options
 742          *
 743          * @param string $title Title
 744          * @param array $override Options to override
 745          * @param array $options Current options
 746          * @param bool $active Whether to show the link in bold
 747          * @return string
 748          */
 749         function makeOptionsLink( $title, $override, $options, $active = false ) {
 750                 $params = $override + $options;
 751
 752                 // Bug 36524: false values have be converted to "0" otherwise
 753                 // wfArrayToCgi() will omit it them.
 754                 foreach ( $params as &$value ) {
 755                         if ( $value === false ) {
 756                                 $value = '0';
 757                         }
 758                 }
 759                 unset( $value );
 760
 761                 $text = htmlspecialchars( $title );
 762                 if ( $active ) {
 763                         $text = '<strong>' . $text . '</strong>';
 764                 }
 765
 766                 return Linker::linkKnown( $this->getPageTitle(), $text, array(), $params );
 767         }
 768
 769         /**
 770          * Creates the options panel.
 771          *
 772          * @param array $defaults
 773          * @param array $nondefaults
 774          * @return string
 775          */
 776         function optionsPanel( $defaults, $nondefaults ) {
 777                 global $wgRCLinkLimits, $wgRCLinkDays;
 778
 779                 $options = $nondefaults + $defaults;
 780
 781                 $note = '';
 782                 $msg = $this->msg( 'rclegend' );
 783                 if ( !$msg->isDisabled() ) {
 784                         $note .= '<div class="mw-rclegend">' . $msg->parse() . "</div>\n";
 785                 }
 786
 787                 $lang = $this->getLanguage();
 788                 $user = $this->getUser();
 789                 if ( $options['from'] ) {
 790                         $note .= $this->msg( 'rcnotefrom' )->numParams( $options['limit'] )->params(
 791                                 $lang->userTimeAndDate( $options['from'], $user ),
 792                                 $lang->userDate( $options['from'], $user ),
 793                                 $lang->userTime( $options['from'], $user ) )->parse() . '<br />';
 794                 }
 795
 796                 # Sort data for display and make sure it's unique after we've added user data.
 797                 $linkLimits = $wgRCLinkLimits;
 798                 $linkLimits[] = $options['limit'];
 799                 sort( $linkLimits );
 800                 $linkLimits = array_unique( $linkLimits );
 801
 802                 $linkDays = $wgRCLinkDays;
 803                 $linkDays[] = $options['days'];
 804                 sort( $linkDays );
 805                 $linkDays = array_unique( $linkDays );
 806
 807                 // limit links
 808                 $cl = array();
 809                 foreach ( $linkLimits as $value ) {
 810                         $cl[] = $this->makeOptionsLink( $lang->formatNum( $value ),
 811                                 array( 'limit' => $value ), $nondefaults, $value == $options['limit'] );
 812                 }
 813                 $cl = $lang->pipeList( $cl );
 814
 815                 // day links, reset 'from' to none
 816                 $dl = array();
 817                 foreach ( $linkDays as $value ) {
 818                         $dl[] = $this->makeOptionsLink( $lang->formatNum( $value ),
 819                                 array( 'days' => $value, 'from' => '' ), $nondefaults, $value == $options['days'] );
 820                 }
 821                 $dl = $lang->pipeList( $dl );
 822
 823                 // show/hide links
 824                 $showhide = array( $this->msg( 'show' )->text(), $this->msg( 'hide' )->text() );
 825                 $filters = array(
 826                         'hideminor' => 'rcshowhideminor',
 827                         'hidebots' => 'rcshowhidebots',
 828                         'hideanons' => 'rcshowhideanons',
 829                         'hideliu' => 'rcshowhideliu',
 830                         'hidepatrolled' => 'rcshowhidepatr',
 831                         'hidemyself' => 'rcshowhidemine'
 832                 );
 833                 foreach ( $this->getCustomFilters() as $key => $params ) {
 834                         $filters[$key] = $params['msg'];
 835                 }
 836                 // Disable some if needed
 837                 if ( !$user->useRCPatrol() ) {
 838                         unset( $filters['hidepatrolled'] );
 839                 }
 840
 841                 $links = array();
 842                 foreach ( $filters as $key => $msg ) {
 843                         $link = $this->makeOptionsLink( $showhide[1 - $options[$key]],
 844                                 array( $key => 1 - $options[$key] ), $nondefaults );
 845                         $links[] = $this->msg( $msg )->rawParams( $link )->escaped();
 846                 }
 847
 848                 // show from this onward link
 849                 $timestamp = wfTimestampNow();
 850                 $now = $lang->userTimeAndDate( $timestamp, $user );
 851                 $tl = $this->makeOptionsLink(
 852                         $now, array( 'from' => $timestamp ), $nondefaults
 853                 );
 854
 855                 $rclinks = $this->msg( 'rclinks' )->rawParams( $cl, $dl, $lang->pipeList( $links ) )
 856                         ->parse();
 857                 $rclistfrom = $this->msg( 'rclistfrom' )->rawParams( $tl )->parse();
 858
 859                 return "{$note}$rclinks<br />$rclistfrom";
 860         }
 861
 862         public function isIncludable() {
 863                 return true;
 864         }
 865 }