includes/specials/SpecialContributions.php

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