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