includes/specials/SpecialContributions.php

   1 <?php
   2 /**
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  * http://www.gnu.org/copyleft/gpl.html
  18  */
  19
  20 /**
  21  * Special:Contributions, show user contributions in a paged list
  22  * @file
  23  * @ingroup SpecialPage
  24  */
  25
  26 class SpecialContributions extends SpecialPage {
  27
  28         public function __construct() {
  29                 parent::__construct( 'Contributions' );
  30         }
  31
  32         public function execute( $par ) {
  33                 global $wgUser, $wgOut, $wgLang, $wgRequest;
  34
  35                 $this->setHeaders();
  36                 $this->outputHeader();
  37
  38                 $this->opts = array();
  39
  40                 if( $par == 'newbies' ) {
  41                         $target = 'newbies';
  42                         $this->opts['contribs'] = 'newbie';
  43                 } elseif( isset( $par ) ) {
  44                         $target = $par;
  45                 } else {
  46                         $target = $wgRequest->getVal( 'target' );
  47                 }
  48
  49                 // check for radiobox
  50                 if( $wgRequest->getVal( 'contribs' ) == 'newbie' ) {
  51                         $target = 'newbies';
  52                         $this->opts['contribs'] = 'newbie';
  53                 }
  54
  55                 $this->opts['deletedOnly'] = $wgRequest->getCheck( 'deletedOnly' );
  56
  57                 if( !strlen( $target ) ) {
  58                         $wgOut->addHTML( $this->getForm() );
  59                         return;
  60                 }
  61
  62                 $this->opts['limit'] = $wgRequest->getInt( 'limit', $wgUser->getOption('rclimit') );
  63                 $this->opts['target'] = $target;
  64                 $this->opts['topOnly'] = $wgRequest->getCheck( 'topOnly' );
  65
  66                 $nt = Title::makeTitleSafe( NS_USER, $target );
  67                 if( !$nt ) {
  68                         $wgOut->addHTML( $this->getForm() );
  69                         return;
  70                 }
  71                 $id = User::idFromName( $nt->getText() );
  72
  73                 if( $target != 'newbies' ) {
  74                         $target = $nt->getText();
  75                         $wgOut->setSubtitle( $this->contributionsSub( $nt, $id ) );
  76                         $wgOut->setHTMLTitle( wfMsg( 'pagetitle', wfMsgExt( 'contributions-title', array( 'parsemag' ),$target ) ) );
  77                 } else {
  78                         $wgOut->setSubtitle( wfMsgHtml( 'sp-contributions-newbies-sub') );
  79                         $wgOut->setHTMLTitle( wfMsg( 'pagetitle', wfMsg( 'sp-contributions-newbies-title' ) ) );
  80                 }
  81
  82                 if( ( $ns = $wgRequest->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
  83                         $this->opts['namespace'] = intval( $ns );
  84                 } else {
  85                         $this->opts['namespace'] = '';
  86                 }
  87
  88                 $this->opts['tagFilter'] = (string) $wgRequest->getVal( 'tagFilter' );
  89
  90                 // Allows reverts to have the bot flag in recent changes. It is just here to
  91                 // be passed in the form at the top of the page
  92                 if( $wgUser->isAllowed( 'markbotedits' ) && $wgRequest->getBool( 'bot' ) ) {
  93                         $this->opts['bot'] = '1';
  94                 }
  95
  96                 $skip = $wgRequest->getText( 'offset' ) || $wgRequest->getText( 'dir' ) == 'prev';
  97                 # Offset overrides year/month selection
  98                 if( $skip ) {
  99                         $this->opts['year'] = '';
 100                         $this->opts['month'] = '';
 101                 } else {
 102                         $this->opts['year'] = $wgRequest->getIntOrNull( 'year' );
 103                         $this->opts['month'] = $wgRequest->getIntOrNull( 'month' );
 104                 }
 105
 106                 // Add RSS/atom links
 107                 $this->setSyndicated();
 108                 $feedType = $wgRequest->getVal( 'feed' );
 109                 if( $feedType ) {
 110                         return $this->feed( $feedType );
 111                 }
 112
 113                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 114
 115                         $wgOut->addHTML( $this->getForm() );
 116
 117                         $pager = new ContribsPager( array(
 118                                 'target' => $target,
 119                                 'namespace' => $this->opts['namespace'],
 120                                 'year' => $this->opts['year'],
 121                                 'month' => $this->opts['month'],
 122                                 'deletedOnly' => $this->opts['deletedOnly'],
 123                                 'topOnly' => $this->opts['topOnly'],
 124                         ) );
 125                         if( !$pager->getNumRows() ) {
 126                                 $wgOut->addWikiMsg( 'nocontribs', $target );
 127                         } else {
 128                                 # Show a message about slave lag, if applicable
 129                                 if( ( $lag = $pager->getDatabase()->getLag() ) > 0 )
 130                                         $wgOut->showLagWarning( $lag );
 131
 132                                 $wgOut->addHTML(
 133                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 134                                         $pager->getBody() .
 135                                         '<p>' . $pager->getNavigationBar() . '</p>'
 136                                 );
 137                         }
 138
 139
 140                         # Show the appropriate "footer" message - WHOIS tools, etc.
 141                         if( $target != 'newbies' ) {
 142                                 $message = 'sp-contributions-footer';
 143                                 if ( IP::isIPAddress( $target ) ) {
 144                                         $message = 'sp-contributions-footer-anon';
 145                                 } else {
 146                                         $user = User::newFromName( $target );
 147                                         if ( !$user || $user->isAnon() ) {
 148                                                 // No message for non-existing users
 149                                                 return;
 150                                         }
 151                                 }
 152
 153                                 $text = wfMsgNoTrans( $message, $target );
 154                                 if( !wfEmptyMsg( $message, $text ) && $text != '-' ) {
 155                                         $wgOut->wrapWikiMsg(
 156                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 157                                                 array( $message, $target ) );
 158                                 }
 159                         }
 160                 }
 161         }
 162
 163         protected function setSyndicated() {
 164                 global $wgOut;
 165                 $wgOut->setSyndicated( true );
 166                 $wgOut->setFeedAppendQuery( wfArrayToCGI( $this->opts ) );
 167         }
 168
 169         /**
 170          * Generates the subheading with links
 171          * @param $nt Title object for the target
 172          * @param $id Integer: User ID for the target
 173          * @return String: appropriately-escaped HTML to be output literally
 174          * @todo Fixme: almost the same as getSubTitle in SpecialDeletedContributions.php. Could be combined.
 175          */
 176         protected function contributionsSub( $nt, $id ) {
 177                 global $wgSysopUserBans, $wgLang, $wgUser, $wgOut;
 178
 179                 $sk = $wgUser->getSkin();
 180
 181                 if ( $id === null ) {
 182                         $user = htmlspecialchars( $nt->getText() );
 183                 } else {
 184                         $user = $sk->link( $nt, htmlspecialchars( $nt->getText() ) );
 185                 }
 186                 $userObj = User::newFromName( $nt->getText(), /* check for username validity not needed */ false );
 187                 $talk = $nt->getTalkPage();
 188                 if( $talk ) {
 189                         # Talk page link
 190                         $tools[] = $sk->link( $talk, wfMsgHtml( 'sp-contributions-talk' ) );
 191                         if( ( $id !== null && $wgSysopUserBans ) || ( $id === null && IP::isIPAddress( $nt->getText() ) ) ) {
 192                                 if( $wgUser->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 193                                         if ( $userObj->isBlocked() ) {
 194                                                 $tools[] = $sk->linkKnown( # Change block link
 195                                                         SpecialPage::getTitleFor( 'Blockip', $nt->getDBkey() ),
 196                                                         wfMsgHtml( 'change-blocklink' )
 197                                                 );
 198                                                 $tools[] = $sk->linkKnown( # Unblock link
 199                                                         SpecialPage::getTitleFor( 'Ipblocklist' ),
 200                                                         wfMsgHtml( 'unblocklink' ),
 201                                                         array(),
 202                                                         array(
 203                                                                 'action' => 'unblock',
 204                                                                 'ip' => $nt->getDBkey()
 205                                                         )
 206                                                 );
 207                                         }
 208                                         else { # User is not blocked
 209                                                 $tools[] = $sk->linkKnown( # Block link
 210                                                         SpecialPage::getTitleFor( 'Blockip', $nt->getDBkey() ),
 211                                                         wfMsgHtml( 'blocklink' )
 212                                                 );
 213                                         }
 214                                 }
 215                                 # Block log link
 216                                 $tools[] = $sk->linkKnown(
 217                                         SpecialPage::getTitleFor( 'Log' ),
 218                                         wfMsgHtml( 'sp-contributions-blocklog' ),
 219                                         array(),
 220                                         array(
 221                                                 'type' => 'block',
 222                                                 'page' => $nt->getPrefixedText()
 223                                         )
 224                                 );
 225                         }
 226                         # Other logs link
 227                         $tools[] = $sk->linkKnown(
 228                                 SpecialPage::getTitleFor( 'Log' ),
 229                                 wfMsgHtml( 'sp-contributions-logs' ),
 230                                 array(),
 231                                 array( 'user' => $nt->getText() )
 232                         );
 233
 234                         # Add link to deleted user contributions for priviledged users
 235                         if( $wgUser->isAllowed( 'deletedhistory' ) ) {
 236                                 $tools[] = $sk->linkKnown(
 237                                         SpecialPage::getTitleFor( 'DeletedContributions', $nt->getDBkey() ),
 238                                         wfMsgHtml( 'sp-contributions-deleted' )
 239                                 );
 240                         }
 241
 242                         # Add a link to change user rights for privileged users
 243                         $userrightsPage = new UserrightsPage();
 244                         if( $id !== null && $userrightsPage->userCanChangeRights( User::newFromId( $id ) ) ) {
 245                                 $tools[] = $sk->linkKnown(
 246                                         SpecialPage::getTitleFor( 'Userrights', $nt->getDBkey() ),
 247                                         wfMsgHtml( 'sp-contributions-userrights' )
 248                                 );
 249                         }
 250
 251                         wfRunHooks( 'ContributionsToolLinks', array( $id, $nt, &$tools ) );
 252
 253                         $links = $wgLang->pipeList( $tools );
 254
 255                         // Show a note if the user is blocked and display the last block log entry.
 256                         if ( $userObj->isBlocked() ) {
 257                                 LogEventsList::showLogExtract(
 258                                         $wgOut,
 259                                         'block',
 260                                         $nt->getPrefixedText(),
 261                                         '',
 262                                         array(
 263                                                 'lim' => 1,
 264                                                 'showIfEmpty' => false,
 265                                                 'msgKey' => array(
 266                                                         $userObj->isAnon() ?
 267                                                                 'sp-contributions-blocked-notice-anon' :
 268                                                                 'sp-contributions-blocked-notice',
 269                                                         $nt->getText() # Support GENDER in 'sp-contributions-blocked-notice'
 270                                                 ),
 271                                                 'offset' => '' # don't use $wgRequest parameter offset
 272                                         )
 273                                 );
 274                         }
 275                 }
 276
 277                 // Old message 'contribsub' had one parameter, but that doesn't work for
 278                 // languages that want to put the "for" bit right after $user but before
 279                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 280                 // otherwise use 'contribsub2'.
 281                 if( wfEmptyMsg( 'contribsub', wfMsg( 'contribsub' ) ) ) {
 282                         return wfMsgHtml( 'contribsub2', $user, $links );
 283                 } else {
 284                         return wfMsgHtml( 'contribsub', "$user ($links)" );
 285                 }
 286         }
 287
 288         /**
 289          * Generates the namespace selector form with hidden attributes.
 290          * @return String: HTML fragment
 291          */
 292         protected function getForm() {
 293                 global $wgScript;
 294
 295                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 296                 if( !isset( $this->opts['target'] ) ) {
 297                         $this->opts['target'] = '';
 298                 } else {
 299                         $this->opts['target'] = str_replace( '_' , ' ' , $this->opts['target'] );
 300                 }
 301
 302                 if( !isset( $this->opts['namespace'] ) ) {
 303                         $this->opts['namespace'] = '';
 304                 }
 305
 306                 if( !isset( $this->opts['contribs'] ) ) {
 307                         $this->opts['contribs'] = 'user';
 308                 }
 309
 310                 if( !isset( $this->opts['year'] ) ) {
 311                         $this->opts['year'] = '';
 312                 }
 313
 314                 if( !isset( $this->opts['month'] ) ) {
 315                         $this->opts['month'] = '';
 316                 }
 317
 318                 if( $this->opts['contribs'] == 'newbie' ) {
 319                         $this->opts['target'] = '';
 320                 }
 321
 322                 if( !isset( $this->opts['tagFilter'] ) ) {
 323                         $this->opts['tagFilter'] = '';
 324                 }
 325
 326                 if( !isset( $this->opts['topOnly'] ) ) {
 327                         $this->opts['topOnly'] = false;
 328                 }
 329
 330                 $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript ) );
 331
 332                 # Add hidden params for tracking except for parameters in $skipParameters
 333                 $skipParameters = array( 'namespace', 'deletedOnly', 'target', 'contribs', 'year', 'month', 'topOnly' );
 334                 foreach ( $this->opts as $name => $value ) {
 335                         if( in_array( $name, $skipParameters ) ) {
 336                                 continue;
 337                         }
 338                         $f .= "\t" . Xml::hidden( $name, $value ) . "\n";
 339                 }
 340
 341                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagFilter'] );
 342
 343                 $f .= '<fieldset>' .
 344                         Xml::element( 'legend', array(), wfMsg( 'sp-contributions-search' ) ) .
 345                         Xml::radioLabel( wfMsgExt( 'sp-contributions-newbies', array( 'parsemag' ) ),
 346                                 'contribs', 'newbie' , 'newbie', $this->opts['contribs'] == 'newbie' ? true : false ) . '<br />' .
 347                         Xml::radioLabel( wfMsgExt( 'sp-contributions-username', array( 'parsemag' ) ),
 348                                 'contribs' , 'user', 'user', $this->opts['contribs'] == 'user' ? true : false ) . ' ' .
 349                         Html::input( 'target', $this->opts['target'], 'text', array(
 350                                 'size' => '20',
 351                                 'required' => ''
 352                         ) + ( $this->opts['target'] ? array() : array( 'autofocus' ) ) ) . ' '.
 353                         '<span style="white-space: nowrap">' .
 354                         Xml::label( wfMsg( 'namespace' ), 'namespace' ) . ' ' .
 355                         Xml::namespaceSelector( $this->opts['namespace'], '' ) .
 356                         '</span>' .
 357                         Xml::checkLabel( wfMsg( 'history-show-deleted' ),
 358                                 'deletedOnly', 'mw-show-deleted-only', $this->opts['deletedOnly'] ) . '<br />' .
 359                         Xml::tags( 'p', null, Xml::checkLabel( wfMsg( 'sp-contributions-toponly' ),
 360                                 'topOnly', 'mw-show-top-only', $this->opts['topOnly'] ) ) .
 361                         ( $tagFilter ? Xml::tags( 'p', null, implode( '&#160;', $tagFilter ) ) : '' ) .
 362                         Xml::openElement( 'p' ) .
 363                         '<span style="white-space: nowrap">' .
 364                         Xml::dateMenu( $this->opts['year'], $this->opts['month'] ) .
 365                         '</span>' . ' ' .
 366                         Xml::submitButton( wfMsg( 'sp-contributions-submit' ) ) .
 367                         Xml::closeElement( 'p' );
 368
 369                 $explain = wfMsgExt( 'sp-contributions-explain', 'parseinline' );
 370                 if( !wfEmptyMsg( 'sp-contributions-explain', $explain ) )
 371                         $f .= "<p id='mw-sp-contributions-explain'>{$explain}</p>";
 372
 373                 $f .= '</fieldset>' .
 374                         Xml::closeElement( 'form' );
 375                 return $f;
 376         }
 377
 378         /**
 379          * Output a subscription feed listing recent edits to this page.
 380          * @param $type String
 381          */
 382         protected function feed( $type ) {
 383                 global $wgRequest, $wgFeed, $wgFeedClasses, $wgFeedLimit;
 384
 385                 if( !$wgFeed ) {
 386                         global $wgOut;
 387                         $wgOut->addWikiMsg( 'feed-unavailable' );
 388                         return;
 389                 }
 390
 391                 if( !isset( $wgFeedClasses[$type] ) ) {
 392                         global $wgOut;
 393                         $wgOut->addWikiMsg( 'feed-invalid' );
 394                         return;
 395                 }
 396
 397                 $feed = new $wgFeedClasses[$type](
 398                         $this->feedTitle(),
 399                         wfMsgExt( 'tagline', 'parsemag' ),
 400                         $this->getTitle()->getFullUrl() . "/" . urlencode($this->opts['target'])
 401                 );
 402
 403                 // Already valid title
 404                 $nt = Title::makeTitleSafe( NS_USER, $this->opts['target'] );
 405                 $target = $this->opts['target'] == 'newbies' ? 'newbies' : $nt->getText();
 406
 407                 $pager = new ContribsPager( array(
 408                         'target' => $target,
 409                         'namespace' => $this->opts['namespace'],
 410                         'year' => $this->opts['year'],
 411                         'month' => $this->opts['month'],
 412                         'tagFilter' => $this->opts['tagFilter'],
 413                         'deletedOnly' => $this->opts['deletedOnly'],
 414                         'topOnly' => $this->opts['topOnly'],
 415                 ) );
 416
 417                 $pager->mLimit = min( $this->opts['limit'], $wgFeedLimit );
 418
 419                 $feed->outHeader();
 420                 if( $pager->getNumRows() > 0 ) {
 421                         while( $row = $pager->mResult->fetchObject() ) {
 422                                 $feed->outItem( $this->feedItem( $row ) );
 423                         }
 424                 }
 425                 $feed->outFooter();
 426         }
 427
 428         protected function feedTitle() {
 429                 global $wgContLanguageCode, $wgSitename;
 430                 $page = SpecialPage::getPage( 'Contributions' );
 431                 $desc = $page->getDescription();
 432                 return "$wgSitename - $desc [$wgContLanguageCode]";
 433         }
 434
 435         protected function feedItem( $row ) {
 436                 $title = Title::MakeTitle( intval( $row->page_namespace ), $row->page_title );
 437                 if( $title ) {
 438                         $date = $row->rev_timestamp;
 439                         $comments = $title->getTalkPage()->getFullURL();
 440                         $revision = Revision::newFromTitle( $title, $row->rev_id );
 441
 442                         return new FeedItem(
 443                                 $title->getPrefixedText(),
 444                                 $this->feedItemDesc( $revision ),
 445                                 $title->getFullURL(),
 446                                 $date,
 447                                 $this->feedItemAuthor( $revision ),
 448                                 $comments
 449                         );
 450                 } else {
 451                         return null;
 452                 }
 453         }
 454
 455         protected function feedItemAuthor( $revision ) {
 456                 return $revision->getUserText();
 457         }
 458
 459         protected function feedItemDesc( $revision ) {
 460                 if( $revision ) {
 461                         return '<p>' . htmlspecialchars( $revision->getUserText() ) . wfMsgForContent( 'colon-separator' ) .
 462                                 htmlspecialchars( FeedItem::stripComment( $revision->getComment() ) ) .
 463                                 "</p>\n<hr />\n<div>" .
 464                                 nl2br( htmlspecialchars( $revision->getText() ) ) . "</div>";
 465                 }
 466                 return '';
 467         }
 468 }
 469
 470 /**
 471  * Pager for Special:Contributions
 472  * @ingroup SpecialPage Pager
 473  */
 474 class ContribsPager extends ReverseChronologicalPager {
 475         public $mDefaultDirection = true;
 476         var $messages, $target;
 477         var $namespace = '', $mDb;
 478
 479         function __construct( $options ) {
 480                 parent::__construct();
 481
 482                 $msgs = array( 'uctop', 'diff', 'newarticle', 'rollbacklink', 'diff', 'hist', 'rev-delundel', 'pipe-separator' );
 483
 484                 foreach( $msgs as $msg ) {
 485                         $this->messages[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
 486                 }
 487
 488                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 489                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 490                 $this->tagFilter = isset( $options['tagFilter'] ) ? $options['tagFilter'] : false;
 491
 492                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 493                 $this->topOnly = !empty( $options['topOnly'] );
 494
 495                 $year = isset( $options['year'] ) ? $options['year'] : false;
 496                 $month = isset( $options['month'] ) ? $options['month'] : false;
 497                 $this->getDateCond( $year, $month );
 498
 499                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 500         }
 501
 502         function getDefaultQuery() {
 503                 $query = parent::getDefaultQuery();
 504                 $query['target'] = $this->target;
 505                 return $query;
 506         }
 507
 508         function getQueryInfo() {
 509                 global $wgUser;
 510                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 511
 512                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 513                 // Paranoia: avoid brute force searches (bug 17342)
 514                 if( !$wgUser->isAllowed( 'deletedhistory' ) ) {
 515                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::DELETED_USER) . ' = 0';
 516                 } else if( !$wgUser->isAllowed( 'suppressrevision' ) ) {
 517                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::SUPPRESSED_USER) .
 518                                 ' != ' . Revision::SUPPRESSED_USER;
 519                 }
 520                 $join_cond['page'] = array( 'INNER JOIN', 'page_id=rev_page' );
 521
 522                 $queryInfo = array(
 523                         'tables' => $tables,
 524                         'fields' => array(
 525                                 'page_namespace', 'page_title', 'page_is_new', 'page_latest', 'page_is_redirect',
 526                                 'page_len','rev_id', 'rev_page', 'rev_text_id', 'rev_timestamp', 'rev_comment',
 527                                 'rev_minor_edit', 'rev_user', 'rev_user_text', 'rev_parent_id', 'rev_deleted'
 528                         ),
 529                         'conds' => $conds,
 530                         'options' => array( 'USE INDEX' => array('revision' => $index) ),
 531                         'join_conds' => $join_cond
 532                 );
 533
 534                 ChangeTags::modifyDisplayQuery(
 535                         $queryInfo['tables'],
 536                         $queryInfo['fields'],
 537                         $queryInfo['conds'],
 538                         $queryInfo['join_conds'],
 539                         $queryInfo['options'],
 540                         $this->tagFilter
 541                 );
 542
 543                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 544                 return $queryInfo;
 545         }
 546
 547         function getUserCond() {
 548                 $condition = array();
 549                 $join_conds = array();
 550                 if( $this->target == 'newbies' ) {
 551                         $tables = array( 'user_groups', 'page', 'revision' );
 552                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 553                         $condition[] = 'rev_user >' . (int)($max - $max / 100);
 554                         $condition[] = 'ug_group IS NULL';
 555                         $index = 'user_timestamp';
 556                         # FIXME: other groups may have 'bot' rights
 557                         $join_conds['user_groups'] = array( 'LEFT JOIN', "ug_user = rev_user AND ug_group = 'bot'" );
 558                 } else {
 559                         $tables = array( 'page', 'revision' );
 560                         $condition['rev_user_text'] = $this->target;
 561                         $index = 'usertext_timestamp';
 562                 }
 563                 if( $this->deletedOnly ) {
 564                         $condition[] = "rev_deleted != '0'";
 565                 }
 566                 if( $this->topOnly ) {
 567                         $condition[] = "rev_id = page_latest";
 568                 }
 569                 return array( $tables, $index, $condition, $join_conds );
 570         }
 571
 572         function getNamespaceCond() {
 573                 if( $this->namespace !== '' ) {
 574                         return array( 'page_namespace' => (int)$this->namespace );
 575                 } else {
 576                         return array();
 577                 }
 578         }
 579
 580         function getIndexField() {
 581                 return 'rev_timestamp';
 582         }
 583
 584         function getStartBody() {
 585                 return "<ul>\n";
 586         }
 587
 588         function getEndBody() {
 589                 return "</ul>\n";
 590         }
 591
 592         /**
 593          * Generates each row in the contributions list.
 594          *
 595          * Contributions which are marked "top" are currently on top of the history.
 596          * For these contributions, a [rollback] link is shown for users with roll-
 597          * back privileges. The rollback link restores the most recent version that
 598          * was not written by the target user.
 599          *
 600          * @todo This would probably look a lot nicer in a table.
 601          */
 602         function formatRow( $row ) {
 603                 global $wgUser, $wgLang, $wgContLang;
 604                 wfProfileIn( __METHOD__ );
 605
 606                 $sk = $this->getSkin();
 607                 $rev = new Revision( $row );
 608                 $classes = array();
 609
 610                 $page = Title::newFromRow( $row );
 611                 $page->resetArticleId( $row->rev_page ); // use process cache
 612                 $link = $sk->link(
 613                         $page,
 614                         htmlspecialchars( $page->getPrefixedText() ),
 615                         array(),
 616                         $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 617                 );
 618                 # Mark current revisions
 619                 $difftext = $topmarktext = '';
 620                 if( $row->rev_id == $row->page_latest ) {
 621                         $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 622                         # Add rollback link
 623                         if( !$row->page_is_new && $page->quickUserCan( 'rollback' )
 624                                 && $page->quickUserCan( 'edit' ) )
 625                         {
 626                                 $topmarktext .= ' '.$sk->generateRollback( $rev );
 627                         }
 628                 }
 629                 # Is there a visible previous revision?
 630                 if( $rev->userCan( Revision::DELETED_TEXT ) && $rev->getParentId() !== 0 ) {
 631                         $difftext = $sk->linkKnown(
 632                                 $page,
 633                                 $this->messages['diff'],
 634                                 array(),
 635                                 array(
 636                                         'diff' => 'prev',
 637                                         'oldid' => $row->rev_id
 638                                 )
 639                         );
 640                 } else {
 641                         $difftext = $this->messages['diff'];
 642                 }
 643                 $histlink = $sk->linkKnown(
 644                         $page,
 645                         $this->messages['hist'],
 646                         array(),
 647                         array( 'action' => 'history' )
 648                 );
 649
 650                 $comment = $wgContLang->getDirMark() . $sk->revComment( $rev, false, true );
 651                 $date = $wgLang->timeanddate( wfTimestamp( TS_MW, $row->rev_timestamp ), true );
 652                 if( $rev->userCan( Revision::DELETED_TEXT ) ) {
 653                         $d = $sk->linkKnown(
 654                                 $page,
 655                                 htmlspecialchars($date),
 656                                 array(),
 657                                 array( 'oldid' => intval( $row->rev_id ) )
 658                         );
 659                 } else {
 660                         $d = $date;
 661                 }
 662                 if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 663                         $d = '<span class="history-deleted">' . $d . '</span>';
 664                 }
 665
 666                 if( $this->target == 'newbies' ) {
 667                         $userlink = ' . . ' . $sk->userLink( $row->rev_user, $row->rev_user_text );
 668                         $userlink .= ' ' . wfMsg( 'parentheses', $sk->userTalkLink( $row->rev_user, $row->rev_user_text ) ) . ' ';
 669                 } else {
 670                         $userlink = '';
 671                 }
 672
 673                 if( $rev->getParentId() === 0 ) {
 674                         $nflag = ChangesList::flag( 'newpage' );
 675                 } else {
 676                         $nflag = '';
 677                 }
 678
 679                 if( $rev->isMinor() ) {
 680                         $mflag = ChangesList::flag( 'minor' );
 681                 } else {
 682                         $mflag = '';
 683                 }
 684
 685                 // Don't show useless link to people who cannot hide revisions
 686                 $canHide = $wgUser->isAllowed( 'deleterevision' );
 687                 if( $canHide || ($rev->getVisibility() && $wgUser->isAllowed('deletedhistory')) ) {
 688                         if( !$rev->userCan( Revision::DELETED_RESTRICTED ) ) {
 689                                 $del = $this->mSkin->revDeleteLinkDisabled( $canHide ); // revision was hidden from sysops
 690                         } else {
 691                                 $query = array(
 692                                         'type'   => 'revision',
 693                                         'target' => $page->getPrefixedDbkey(),
 694                                         'ids'    => $rev->getId()
 695                                 );
 696                                 $del = $this->mSkin->revDeleteLink( $query,
 697                                         $rev->isDeleted( Revision::DELETED_RESTRICTED ), $canHide );
 698                         }
 699                         $del .= ' ';
 700                 } else {
 701                         $del = '';
 702                 }
 703
 704                 $diffHistLinks = '(' . $difftext . $this->messages['pipe-separator'] . $histlink . ')';
 705                 $ret = "{$del}{$d} {$diffHistLinks} {$nflag}{$mflag} {$link}{$userlink} {$comment} {$topmarktext}";
 706
 707                 # Denote if username is redacted for this edit
 708                 if( $rev->isDeleted( Revision::DELETED_USER ) ) {
 709                         $ret .= " <strong>" . wfMsgHtml('rev-deleted-user-contribs') . "</strong>";
 710                 }
 711
 712                 # Tags, if any.
 713                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $row->ts_tags, 'contributions' );
 714                 $classes = array_merge( $classes, $newClasses );
 715                 $ret .= " $tagSummary";
 716
 717                 // Let extensions add data
 718                 wfRunHooks( 'ContributionsLineEnding', array( &$this, &$ret, $row ) );
 719
 720                 $classes = implode( ' ', $classes );
 721                 $ret = "<li class=\"$classes\">$ret</li>\n";
 722                 wfProfileOut( __METHOD__ );
 723                 return $ret;
 724         }
 725
 726         /**
 727          * Get the Database object in use
 728          *
 729          * @return Database
 730          */
 731         public function getDatabase() {
 732                 return $this->mDb;
 733         }
 734
 735         /**
 736          * Overwrite Pager function and return a helpful comment
 737          */
 738         function getSqlComment() {
 739                 if ( $this->namespace || $this->deletedOnly ) {
 740                         return 'contributions page filtered for namespace or RevisionDeleted edits'; // potentially slow, see CR r58153
 741                 } else {
 742                         return 'contributions page unfiltered';
 743                 }
 744         }
 745
 746 }