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