includes/specials/SpecialContributions.php

   1 <?php
   2 /**
   3  * Implements Special:Contributions
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * Special:Contributions, show user contributions in a paged list
  26  *
  27  * @ingroup SpecialPage
  28  */
  29
  30 class SpecialContributions extends SpecialPage {
  31
  32         public function __construct() {
  33                 parent::__construct( 'Contributions' );
  34         }
  35
  36         public function execute( $par ) {
  37                 global $wgUser, $wgOut, $wgRequest;
  38
  39                 $this->setHeaders();
  40                 $this->outputHeader();
  41
  42                 $this->opts = array();
  43
  44                 if( $par == 'newbies' ) {
  45                         $target = 'newbies';
  46                         $this->opts['contribs'] = 'newbie';
  47                 } elseif( isset( $par ) ) {
  48                         $target = $par;
  49                 } else {
  50                         $target = $wgRequest->getVal( 'target' );
  51                 }
  52
  53                 // check for radiobox
  54                 if( $wgRequest->getVal( 'contribs' ) == 'newbie' ) {
  55                         $target = 'newbies';
  56                         $this->opts['contribs'] = 'newbie';
  57                 }
  58
  59                 $this->opts['deletedOnly'] = $wgRequest->getCheck( 'deletedOnly' );
  60
  61                 if( !strlen( $target ) ) {
  62                         $wgOut->addHTML( $this->getForm() );
  63                         return;
  64                 }
  65
  66                 $this->opts['limit'] = $wgRequest->getInt( 'limit', $wgUser->getOption('rclimit') );
  67                 $this->opts['target'] = $target;
  68                 $this->opts['topOnly'] = $wgRequest->getCheck( 'topOnly' );
  69
  70                 $nt = Title::makeTitleSafe( NS_USER, $target );
  71                 if( !$nt ) {
  72                         $wgOut->addHTML( $this->getForm() );
  73                         return;
  74                 }
  75                 $id = User::idFromName( $nt->getText() );
  76
  77                 if( $target != 'newbies' ) {
  78                         $target = $nt->getText();
  79                         $wgOut->setSubtitle( $this->contributionsSub( $nt, $id ) );
  80                         $wgOut->setHTMLTitle( wfMsg( 'pagetitle', wfMsgExt( 'contributions-title', array( 'parsemag' ),$target ) ) );
  81                         $user = User::newFromName( $target, false );
  82                         if ( is_object($user) ) {
  83                                 $wgUser->getSkin()->setRelevantUser( $user );
  84                         }
  85                 } else {
  86                         $wgOut->setSubtitle( wfMsgHtml( 'sp-contributions-newbies-sub') );
  87                         $wgOut->setHTMLTitle( wfMsg( 'pagetitle', wfMsg( 'sp-contributions-newbies-title' ) ) );
  88                 }
  89
  90                 if( ( $ns = $wgRequest->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
  91                         $this->opts['namespace'] = intval( $ns );
  92                 } else {
  93                         $this->opts['namespace'] = '';
  94                 }
  95
  96                 $this->opts['tagFilter'] = (string) $wgRequest->getVal( 'tagFilter' );
  97
  98                 // Allows reverts to have the bot flag in recent changes. It is just here to
  99                 // be passed in the form at the top of the page
 100                 if( $wgUser->isAllowed( 'markbotedits' ) && $wgRequest->getBool( 'bot' ) ) {
 101                         $this->opts['bot'] = '1';
 102                 }
 103
 104                 $skip = $wgRequest->getText( 'offset' ) || $wgRequest->getText( 'dir' ) == 'prev';
 105                 # Offset overrides year/month selection
 106                 if( $skip ) {
 107                         $this->opts['year'] = '';
 108                         $this->opts['month'] = '';
 109                 } else {
 110                         $this->opts['year'] = $wgRequest->getIntOrNull( 'year' );
 111                         $this->opts['month'] = $wgRequest->getIntOrNull( 'month' );
 112                 }
 113
 114                 // Add RSS/atom links
 115                 $this->setSyndicated();
 116                 $feedType = $wgRequest->getVal( 'feed' );
 117                 if( $feedType ) {
 118                         return $this->feed( $feedType );
 119                 }
 120
 121                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 122
 123                         $wgOut->addHTML( $this->getForm() );
 124
 125                         $pager = new ContribsPager( array(
 126                                 'target' => $target,
 127                                 'namespace' => $this->opts['namespace'],
 128                                 'year' => $this->opts['year'],
 129                                 'month' => $this->opts['month'],
 130                                 'deletedOnly' => $this->opts['deletedOnly'],
 131                                 'topOnly' => $this->opts['topOnly'],
 132                         ) );
 133                         if( !$pager->getNumRows() ) {
 134                                 $wgOut->addWikiMsg( 'nocontribs', $target );
 135                         } else {
 136                                 # Show a message about slave lag, if applicable
 137                                 if( ( $lag = $pager->getDatabase()->getLag() ) > 0 )
 138                                         $wgOut->showLagWarning( $lag );
 139
 140                                 $wgOut->addHTML(
 141                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 142                                         $pager->getBody() .
 143                                         '<p>' . $pager->getNavigationBar() . '</p>'
 144                                 );
 145                         }
 146
 147
 148                         # Show the appropriate "footer" message - WHOIS tools, etc.
 149                         if( $target != 'newbies' ) {
 150                                 $message = 'sp-contributions-footer';
 151                                 if ( IP::isIPAddress( $target ) ) {
 152                                         $message = 'sp-contributions-footer-anon';
 153                                 } else {
 154                                         $user = User::newFromName( $target );
 155                                         if ( !$user || $user->isAnon() ) {
 156                                                 // No message for non-existing users
 157                                                 return;
 158                                         }
 159                                 }
 160
 161                                 $text = wfMsgNoTrans( $message, $target );
 162                                 if( !wfEmptyMsg( $message, $text ) && $text != '-' ) {
 163                                         $wgOut->wrapWikiMsg(
 164                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 165                                                 array( $message, $target ) );
 166                                 }
 167                         }
 168                 }
 169         }
 170
 171         protected function setSyndicated() {
 172                 global $wgOut;
 173                 $wgOut->setSyndicated( true );
 174                 $wgOut->setFeedAppendQuery( wfArrayToCGI( $this->opts ) );
 175         }
 176
 177         /**
 178          * Generates the subheading with links
 179          * @param $nt Title object for the target
 180          * @param $id Integer: User ID for the target
 181          * @return String: appropriately-escaped HTML to be output literally
 182          * @todo Fixme: almost the same as getSubTitle in SpecialDeletedContributions.php. Could be combined.
 183          */
 184         protected function contributionsSub( $nt, $id ) {
 185                 global $wgSysopUserBans, $wgLang, $wgUser, $wgOut;
 186
 187                 $sk = $wgUser->getSkin();
 188
 189                 if ( $id === null ) {
 190                         $user = htmlspecialchars( $nt->getText() );
 191                 } else {
 192                         $user = $sk->link( $nt, htmlspecialchars( $nt->getText() ) );
 193                 }
 194                 $userObj = User::newFromName( $nt->getText(), /* check for username validity not needed */ false );
 195                 $talk = $nt->getTalkPage();
 196                 if( $talk ) {
 197                         # Talk page link
 198                         $tools[] = $sk->link( $talk, wfMsgHtml( 'sp-contributions-talk' ) );
 199                         if( ( $id !== null && $wgSysopUserBans ) || ( $id === null && IP::isIPAddress( $nt->getText() ) ) ) {
 200                                 if( $wgUser->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 201                                         if ( $userObj->isBlocked() ) {
 202                                                 $tools[] = $sk->linkKnown( # Change block link
 203                                                         SpecialPage::getTitleFor( 'Blockip', $nt->getDBkey() ),
 204                                                         wfMsgHtml( 'change-blocklink' )
 205                                                 );
 206                                                 $tools[] = $sk->linkKnown( # Unblock link
 207                                                         SpecialPage::getTitleFor( 'Ipblocklist' ),
 208                                                         wfMsgHtml( 'unblocklink' ),
 209                                                         array(),
 210                                                         array(
 211                                                                 'action' => 'unblock',
 212                                                                 'ip' => $nt->getDBkey()
 213                                                         )
 214                                                 );
 215                                         }
 216                                         else { # User is not blocked
 217                                                 $tools[] = $sk->linkKnown( # Block link
 218                                                         SpecialPage::getTitleFor( 'Blockip', $nt->getDBkey() ),
 219                                                         wfMsgHtml( 'blocklink' )
 220                                                 );
 221                                         }
 222                                 }
 223                                 # Block log link
 224                                 $tools[] = $sk->linkKnown(
 225                                         SpecialPage::getTitleFor( 'Log' ),
 226                                         wfMsgHtml( 'sp-contributions-blocklog' ),
 227                                         array(),
 228                                         array(
 229                                                 'type' => 'block',
 230                                                 'page' => $nt->getPrefixedText()
 231                                         )
 232                                 );
 233                         }
 234                         # Uploads
 235                         $tools[] = $sk->linkKnown(
 236                                 SpecialPage::getTitleFor( 'Listfiles' ),
 237                                 wfMsgHtml( 'sp-contributions-uploads' ),
 238                                 array(),
 239                                 array( 'user' => $nt->getText() )
 240                         );
 241
 242                         # Other logs link
 243                         $tools[] = $sk->linkKnown(
 244                                 SpecialPage::getTitleFor( 'Log' ),
 245                                 wfMsgHtml( 'sp-contributions-logs' ),
 246                                 array(),
 247                                 array( 'user' => $nt->getText() )
 248                         );
 249
 250                         # Add link to deleted user contributions for priviledged users
 251                         if( $wgUser->isAllowed( 'deletedhistory' ) ) {
 252                                 $tools[] = $sk->linkKnown(
 253                                         SpecialPage::getTitleFor( 'DeletedContributions', $nt->getDBkey() ),
 254                                         wfMsgHtml( 'sp-contributions-deleted' )
 255                                 );
 256                         }
 257
 258                         # Add a link to change user rights for privileged users
 259                         $userrightsPage = new UserrightsPage();
 260                         if( $id !== null && $userrightsPage->userCanChangeRights( User::newFromId( $id ) ) ) {
 261                                 $tools[] = $sk->linkKnown(
 262                                         SpecialPage::getTitleFor( 'Userrights', $nt->getDBkey() ),
 263                                         wfMsgHtml( 'sp-contributions-userrights' )
 264                                 );
 265                         }
 266
 267                         wfRunHooks( 'ContributionsToolLinks', array( $id, $nt, &$tools ) );
 268
 269                         $links = $wgLang->pipeList( $tools );
 270
 271                         // Show a note if the user is blocked and display the last block log entry.
 272                         if ( $userObj->isBlocked() ) {
 273                                 LogEventsList::showLogExtract(
 274                                         $wgOut,
 275                                         'block',
 276                                         $nt->getPrefixedText(),
 277                                         '',
 278                                         array(
 279                                                 'lim' => 1,
 280                                                 'showIfEmpty' => false,
 281                                                 'msgKey' => array(
 282                                                         $userObj->isAnon() ?
 283                                                                 'sp-contributions-blocked-notice-anon' :
 284                                                                 'sp-contributions-blocked-notice',
 285                                                         $nt->getText() # Support GENDER in 'sp-contributions-blocked-notice'
 286                                                 ),
 287                                                 'offset' => '' # don't use $wgRequest parameter offset
 288                                         )
 289                                 );
 290                         }
 291                 }
 292
 293                 // Old message 'contribsub' had one parameter, but that doesn't work for
 294                 // languages that want to put the "for" bit right after $user but before
 295                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 296                 // otherwise use 'contribsub2'.
 297                 if( wfEmptyMsg( 'contribsub', wfMsg( 'contribsub' ) ) ) {
 298                         return wfMsgHtml( 'contribsub2', $user, $links );
 299                 } else {
 300                         return wfMsgHtml( 'contribsub', "$user ($links)" );
 301                 }
 302         }
 303
 304         /**
 305          * Generates the namespace selector form with hidden attributes.
 306          * @return String: HTML fragment
 307          */
 308         protected function getForm() {
 309                 global $wgScript;
 310
 311                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 312                 if( !isset( $this->opts['target'] ) ) {
 313                         $this->opts['target'] = '';
 314                 } else {
 315                         $this->opts['target'] = str_replace( '_' , ' ' , $this->opts['target'] );
 316                 }
 317
 318                 if( !isset( $this->opts['namespace'] ) ) {
 319                         $this->opts['namespace'] = '';
 320                 }
 321
 322                 if( !isset( $this->opts['contribs'] ) ) {
 323                         $this->opts['contribs'] = 'user';
 324                 }
 325
 326                 if( !isset( $this->opts['year'] ) ) {
 327                         $this->opts['year'] = '';
 328                 }
 329
 330                 if( !isset( $this->opts['month'] ) ) {
 331                         $this->opts['month'] = '';
 332                 }
 333
 334                 if( $this->opts['contribs'] == 'newbie' ) {
 335                         $this->opts['target'] = '';
 336                 }
 337
 338                 if( !isset( $this->opts['tagFilter'] ) ) {
 339                         $this->opts['tagFilter'] = '';
 340                 }
 341
 342                 if( !isset( $this->opts['topOnly'] ) ) {
 343                         $this->opts['topOnly'] = false;
 344                 }
 345
 346                 $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'class' => 'mw-contributions-form' ) );
 347
 348                 # Add hidden params for tracking except for parameters in $skipParameters
 349                 $skipParameters = array( 'namespace', 'deletedOnly', 'target', 'contribs', 'year', 'month', 'topOnly' );
 350                 foreach ( $this->opts as $name => $value ) {
 351                         if( in_array( $name, $skipParameters ) ) {
 352                                 continue;
 353                         }
 354                         $f .= "\t" . Html::hidden( $name, $value ) . "\n";
 355                 }
 356
 357                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagFilter'] );
 358
 359                 $f .=   Xml::fieldset( wfMsg( 'sp-contributions-search' ) ) .
 360                         Xml::radioLabel( wfMsgExt( 'sp-contributions-newbies', array( 'parsemag' ) ),
 361                                 'contribs', 'newbie' , 'newbie', $this->opts['contribs'] == 'newbie' ) . '<br />' .
 362                         Xml::radioLabel( wfMsgExt( 'sp-contributions-username', array( 'parsemag' ) ),
 363                                 'contribs' , 'user', 'user', $this->opts['contribs'] == 'user' ) . ' ' .
 364                         Html::input( 'target', $this->opts['target'], 'text', array(
 365                                 'size' => '20',
 366                                 'required' => ''
 367                         ) + ( $this->opts['target'] ? array() : array( 'autofocus' ) ) ) . ' '.
 368                         Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 369                                 Xml::label( wfMsg( 'namespace' ), 'namespace' ) . ' ' .
 370                                 Xml::namespaceSelector( $this->opts['namespace'], '' )
 371                         ) .
 372                         Xml::checkLabel( wfMsg( 'history-show-deleted' ),
 373                                 'deletedOnly', 'mw-show-deleted-only', $this->opts['deletedOnly'] ) . '<br />' .
 374                         Xml::tags( 'p', null, Xml::checkLabel( wfMsg( 'sp-contributions-toponly' ),
 375                                 'topOnly', 'mw-show-top-only', $this->opts['topOnly'] ) ) .
 376                         ( $tagFilter ? Xml::tags( 'p', null, implode( '&#160;', $tagFilter ) ) : '' ) .
 377                         Html::rawElement( 'p', array( 'style' => 'white-space: nowrap' ),
 378                                 Xml::dateMenu( $this->opts['year'], $this->opts['month'] ) . ' ' .
 379                                 Xml::submitButton( wfMsg( 'sp-contributions-submit' ) )
 380                         ) . ' ';
 381                 $explain = wfMsgExt( 'sp-contributions-explain', 'parseinline' );
 382                 if( !wfEmptyMsg( 'sp-contributions-explain', $explain ) ) {
 383                         $f .= "<p id='mw-sp-contributions-explain'>{$explain}</p>";
 384                 }
 385                 $f .= Xml::closeElement('fieldset' ) .
 386                         Xml::closeElement( 'form' );
 387                 return $f;
 388         }
 389
 390         /**
 391          * Output a subscription feed listing recent edits to this page.
 392          * @param $type String
 393          */
 394         protected function feed( $type ) {
 395                 global $wgFeed, $wgFeedClasses, $wgFeedLimit, $wgOut;
 396
 397                 if( !$wgFeed ) {
 398                         $wgOut->addWikiMsg( 'feed-unavailable' );
 399                         return;
 400                 }
 401
 402                 if( !isset( $wgFeedClasses[$type] ) ) {
 403                         $wgOut->addWikiMsg( 'feed-invalid' );
 404                         return;
 405                 }
 406
 407                 $feed = new $wgFeedClasses[$type](
 408                         $this->feedTitle(),
 409                         wfMsgExt( 'tagline', 'parsemag' ),
 410                         $this->getTitle()->getFullUrl() . "/" . urlencode($this->opts['target'])
 411                 );
 412
 413                 // Already valid title
 414                 $nt = Title::makeTitleSafe( NS_USER, $this->opts['target'] );
 415                 $target = $this->opts['target'] == 'newbies' ? 'newbies' : $nt->getText();
 416
 417                 $pager = new ContribsPager( array(
 418                         'target' => $target,
 419                         'namespace' => $this->opts['namespace'],
 420                         'year' => $this->opts['year'],
 421                         'month' => $this->opts['month'],
 422                         'tagFilter' => $this->opts['tagFilter'],
 423                         'deletedOnly' => $this->opts['deletedOnly'],
 424                         'topOnly' => $this->opts['topOnly'],
 425                 ) );
 426
 427                 $pager->mLimit = min( $this->opts['limit'], $wgFeedLimit );
 428
 429                 $feed->outHeader();
 430                 if( $pager->getNumRows() > 0 ) {
 431                         foreach ( $pager->mResult as $row ) {
 432                                 $feed->outItem( $this->feedItem( $row ) );
 433                         }
 434                 }
 435                 $feed->outFooter();
 436         }
 437
 438         protected function feedTitle() {
 439                 global $wgLanguageCode, $wgSitename;
 440                 $page = SpecialPage::getPage( 'Contributions' );
 441                 $desc = $page->getDescription();
 442                 return "$wgSitename - $desc [$wgLanguageCode]";
 443         }
 444
 445         protected function feedItem( $row ) {
 446                 $title = Title::MakeTitle( intval( $row->page_namespace ), $row->page_title );
 447                 if( $title ) {
 448                         $date = $row->rev_timestamp;
 449                         $comments = $title->getTalkPage()->getFullURL();
 450                         $revision = Revision::newFromTitle( $title, $row->rev_id );
 451
 452                         return new FeedItem(
 453                                 $title->getPrefixedText(),
 454                                 $this->feedItemDesc( $revision ),
 455                                 $title->getFullURL(),
 456                                 $date,
 457                                 $this->feedItemAuthor( $revision ),
 458                                 $comments
 459                         );
 460                 } else {
 461                         return null;
 462                 }
 463         }
 464
 465         protected function feedItemAuthor( $revision ) {
 466                 return $revision->getUserText();
 467         }
 468
 469         protected function feedItemDesc( $revision ) {
 470                 if( $revision ) {
 471                         return '<p>' . htmlspecialchars( $revision->getUserText() ) . wfMsgForContent( 'colon-separator' ) .
 472                                 htmlspecialchars( FeedItem::stripComment( $revision->getComment() ) ) .
 473                                 "</p>\n<hr />\n<div>" .
 474                                 nl2br( htmlspecialchars( $revision->getText() ) ) . "</div>";
 475                 }
 476                 return '';
 477         }
 478 }
 479
 480 /**
 481  * Pager for Special:Contributions
 482  * @ingroup SpecialPage Pager
 483  */
 484 class ContribsPager extends ReverseChronologicalPager {
 485         public $mDefaultDirection = true;
 486         var $messages, $target;
 487         var $namespace = '', $mDb;
 488
 489         function __construct( $options ) {
 490                 parent::__construct();
 491
 492                 $msgs = array( 'uctop', 'diff', 'newarticle', 'rollbacklink', 'diff', 'hist', 'rev-delundel', 'pipe-separator' );
 493
 494                 foreach( $msgs as $msg ) {
 495                         $this->messages[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
 496                 }
 497
 498                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 499                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 500                 $this->tagFilter = isset( $options['tagFilter'] ) ? $options['tagFilter'] : false;
 501
 502                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 503                 $this->topOnly = !empty( $options['topOnly'] );
 504
 505                 $year = isset( $options['year'] ) ? $options['year'] : false;
 506                 $month = isset( $options['month'] ) ? $options['month'] : false;
 507                 $this->getDateCond( $year, $month );
 508
 509                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 510         }
 511
 512         function getDefaultQuery() {
 513                 $query = parent::getDefaultQuery();
 514                 $query['target'] = $this->target;
 515                 return $query;
 516         }
 517
 518         function getQueryInfo() {
 519                 global $wgUser;
 520                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 521
 522                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 523                 // Paranoia: avoid brute force searches (bug 17342)
 524                 if( !$wgUser->isAllowed( 'deletedhistory' ) ) {
 525                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::DELETED_USER) . ' = 0';
 526                 } else if( !$wgUser->isAllowed( 'suppressrevision' ) ) {
 527                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::SUPPRESSED_USER) .
 528                                 ' != ' . Revision::SUPPRESSED_USER;
 529                 }
 530                 $join_cond['page'] = array( 'INNER JOIN', 'page_id=rev_page' );
 531
 532                 $queryInfo = array(
 533                         'tables' => $tables,
 534                         'fields' => array(
 535                                 'page_namespace', 'page_title', 'page_is_new', 'page_latest', 'page_is_redirect',
 536                                 'page_len','rev_id', 'rev_page', 'rev_text_id', 'rev_timestamp', 'rev_comment',
 537                                 'rev_minor_edit', 'rev_user', 'rev_user_text', 'rev_parent_id', 'rev_deleted'
 538                         ),
 539                         'conds' => $conds,
 540                         'options' => array( 'USE INDEX' => array('revision' => $index) ),
 541                         'join_conds' => $join_cond
 542                 );
 543
 544                 ChangeTags::modifyDisplayQuery(
 545                         $queryInfo['tables'],
 546                         $queryInfo['fields'],
 547                         $queryInfo['conds'],
 548                         $queryInfo['join_conds'],
 549                         $queryInfo['options'],
 550                         $this->tagFilter
 551                 );
 552
 553                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 554                 return $queryInfo;
 555         }
 556
 557         function getUserCond() {
 558                 $condition = array();
 559                 $join_conds = array();
 560                 if( $this->target == 'newbies' ) {
 561                         $tables = array( 'user_groups', 'page', 'revision' );
 562                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 563                         $condition[] = 'rev_user >' . (int)($max - $max / 100);
 564                         $condition[] = 'ug_group IS NULL';
 565                         $index = 'user_timestamp';
 566                         # FIXME: other groups may have 'bot' rights
 567                         $join_conds['user_groups'] = array( 'LEFT JOIN', "ug_user = rev_user AND ug_group = 'bot'" );
 568                 } else {
 569                         $tables = array( 'page', 'revision' );
 570                         $condition['rev_user_text'] = $this->target;
 571                         $index = 'usertext_timestamp';
 572                 }
 573                 if( $this->deletedOnly ) {
 574                         $condition[] = "rev_deleted != '0'";
 575                 }
 576                 if( $this->topOnly ) {
 577                         $condition[] = "rev_id = page_latest";
 578                 }
 579                 return array( $tables, $index, $condition, $join_conds );
 580         }
 581
 582         function getNamespaceCond() {
 583                 if( $this->namespace !== '' ) {
 584                         return array( 'page_namespace' => (int)$this->namespace );
 585                 } else {
 586                         return array();
 587                 }
 588         }
 589
 590         function getIndexField() {
 591                 return 'rev_timestamp';
 592         }
 593
 594         function getStartBody() {
 595                 return "<ul>\n";
 596         }
 597
 598         function getEndBody() {
 599                 return "</ul>\n";
 600         }
 601
 602         /**
 603          * Generates each row in the contributions list.
 604          *
 605          * Contributions which are marked "top" are currently on top of the history.
 606          * For these contributions, a [rollback] link is shown for users with roll-
 607          * back privileges. The rollback link restores the most recent version that
 608          * was not written by the target user.
 609          *
 610          * @todo This would probably look a lot nicer in a table.
 611          */
 612         function formatRow( $row ) {
 613                 global $wgUser, $wgLang, $wgContLang;
 614                 wfProfileIn( __METHOD__ );
 615
 616                 $sk = $this->getSkin();
 617                 $rev = new Revision( $row );
 618                 $classes = array();
 619
 620                 $page = Title::newFromRow( $row );
 621                 $page->resetArticleId( $row->rev_page ); // use process cache
 622                 $link = $sk->link(
 623                         $page,
 624                         htmlspecialchars( $page->getPrefixedText() ),
 625                         array(),
 626                         $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 627                 );
 628                 # Mark current revisions
 629                 $topmarktext = '';
 630                 if( $row->rev_id == $row->page_latest ) {
 631                         $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 632                         # Add rollback link
 633                         if( !$row->page_is_new && $page->quickUserCan( 'rollback' )
 634                                 && $page->quickUserCan( 'edit' ) )
 635                         {
 636                                 $topmarktext .= ' '.$sk->generateRollback( $rev );
 637                         }
 638                 }
 639                 # Is there a visible previous revision?
 640                 if( $rev->userCan( Revision::DELETED_TEXT ) && $rev->getParentId() !== 0 ) {
 641                         $difftext = $sk->linkKnown(
 642                                 $page,
 643                                 $this->messages['diff'],
 644                                 array(),
 645                                 array(
 646                                         'diff' => 'prev',
 647                                         'oldid' => $row->rev_id
 648                                 )
 649                         );
 650                 } else {
 651                         $difftext = $this->messages['diff'];
 652                 }
 653                 $histlink = $sk->linkKnown(
 654                         $page,
 655                         $this->messages['hist'],
 656                         array(),
 657                         array( 'action' => 'history' )
 658                 );
 659
 660                 $comment = $wgContLang->getDirMark() . $sk->revComment( $rev, false, true );
 661                 $date = $wgLang->timeanddate( wfTimestamp( TS_MW, $row->rev_timestamp ), true );
 662                 if( $rev->userCan( Revision::DELETED_TEXT ) ) {
 663                         $d = $sk->linkKnown(
 664                                 $page,
 665                                 htmlspecialchars($date),
 666                                 array(),
 667                                 array( 'oldid' => intval( $row->rev_id ) )
 668                         );
 669                 } else {
 670                         $d = $date;
 671                 }
 672                 if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 673                         $d = '<span class="history-deleted">' . $d . '</span>';
 674                 }
 675
 676                 if( $this->target == 'newbies' ) {
 677                         $userlink = ' . . ' . $sk->userLink( $row->rev_user, $row->rev_user_text );
 678                         $userlink .= ' ' . wfMsg( 'parentheses', $sk->userTalkLink( $row->rev_user, $row->rev_user_text ) ) . ' ';
 679                 } else {
 680                         $userlink = '';
 681                 }
 682
 683                 if( $rev->getParentId() === 0 ) {
 684                         $nflag = ChangesList::flag( 'newpage' );
 685                 } else {
 686                         $nflag = '';
 687                 }
 688
 689                 if( $rev->isMinor() ) {
 690                         $mflag = ChangesList::flag( 'minor' );
 691                 } else {
 692                         $mflag = '';
 693                 }
 694
 695                 // Don't show useless link to people who cannot hide revisions
 696                 $canHide = $wgUser->isAllowed( 'deleterevision' );
 697                 if( $canHide || ($rev->getVisibility() && $wgUser->isAllowed('deletedhistory')) ) {
 698                         if( !$rev->userCan( Revision::DELETED_RESTRICTED ) ) {
 699                                 $del = $this->mSkin->revDeleteLinkDisabled( $canHide ); // revision was hidden from sysops
 700                         } else {
 701                                 $query = array(
 702                                         'type'   => 'revision',
 703                                         'target' => $page->getPrefixedDbkey(),
 704                                         'ids'    => $rev->getId()
 705                                 );
 706                                 $del = $this->mSkin->revDeleteLink( $query,
 707                                         $rev->isDeleted( Revision::DELETED_RESTRICTED ), $canHide );
 708                         }
 709                         $del .= ' ';
 710                 } else {
 711                         $del = '';
 712                 }
 713
 714                 $diffHistLinks = '(' . $difftext . $this->messages['pipe-separator'] . $histlink . ')';
 715                 $ret = "{$del}{$d} {$diffHistLinks} {$nflag}{$mflag} {$link}{$userlink} {$comment} {$topmarktext}";
 716
 717                 # Denote if username is redacted for this edit
 718                 if( $rev->isDeleted( Revision::DELETED_USER ) ) {
 719                         $ret .= " <strong>" . wfMsgHtml('rev-deleted-user-contribs') . "</strong>";
 720                 }
 721
 722                 # Tags, if any.
 723                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $row->ts_tags, 'contributions' );
 724                 $classes = array_merge( $classes, $newClasses );
 725                 $ret .= " $tagSummary";
 726
 727                 // Let extensions add data
 728                 wfRunHooks( 'ContributionsLineEnding', array( &$this, &$ret, $row ) );
 729
 730                 $classes = implode( ' ', $classes );
 731                 $ret = "<li class=\"$classes\">$ret</li>\n";
 732                 wfProfileOut( __METHOD__ );
 733                 return $ret;
 734         }
 735
 736         /**
 737          * Get the Database object in use
 738          *
 739          * @return Database
 740          */
 741         public function getDatabase() {
 742                 return $this->mDb;
 743         }
 744
 745         /**
 746          * Overwrite Pager function and return a helpful comment
 747          */
 748         function getSqlComment() {
 749                 if ( $this->namespace || $this->deletedOnly ) {
 750                         return 'contributions page filtered for namespace or RevisionDeleted edits'; // potentially slow, see CR r58153
 751                 } else {
 752                         return 'contributions page unfiltered';
 753                 }
 754         }
 755
 756 }