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
  73                 $nt = Title::makeTitleSafe( NS_USER, $target );
  74                 if( !$nt ) {
  75                         $wgOut->addHTML( $this->getForm() );
  76                         return;
  77                 }
  78                 $id = User::idFromName( $nt->getText() );
  79
  80                 if( $target != 'newbies' ) {
  81                         $target = $nt->getText();
  82                         $wgOut->setSubtitle( $this->contributionsSub( $nt, $id ) );
  83                         $wgOut->setHTMLTitle( wfMsg( 'pagetitle', wfMsgExt( 'contributions-title', array( 'parsemag' ),$target ) ) );
  84                         $user = User::newFromName( $target, false );
  85                         if ( is_object( $user ) ) {
  86                                 $this->getSkin()->setRelevantUser( $user );
  87                         }
  88                 } else {
  89                         $wgOut->setSubtitle( wfMsgHtml( 'sp-contributions-newbies-sub') );
  90                         $wgOut->setHTMLTitle( wfMsg( 'pagetitle', wfMsg( 'sp-contributions-newbies-title' ) ) );
  91                 }
  92
  93                 if( ( $ns = $wgRequest->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
  94                         $this->opts['namespace'] = intval( $ns );
  95                 } else {
  96                         $this->opts['namespace'] = '';
  97                 }
  98
  99                 $this->opts['tagFilter'] = (string) $wgRequest->getVal( 'tagFilter' );
 100
 101                 // Allows reverts to have the bot flag in recent changes. It is just here to
 102                 // be passed in the form at the top of the page
 103                 if( $wgUser->isAllowed( 'markbotedits' ) && $wgRequest->getBool( 'bot' ) ) {
 104                         $this->opts['bot'] = '1';
 105                 }
 106
 107                 $skip = $wgRequest->getText( 'offset' ) || $wgRequest->getText( 'dir' ) == 'prev';
 108                 # Offset overrides year/month selection
 109                 if( $skip ) {
 110                         $this->opts['year'] = '';
 111                         $this->opts['month'] = '';
 112                 } else {
 113                         $this->opts['year'] = $wgRequest->getIntOrNull( 'year' );
 114                         $this->opts['month'] = $wgRequest->getIntOrNull( 'month' );
 115                 }
 116
 117                 $feedType = $wgRequest->getVal( 'feed' );
 118                 if( $feedType ) {
 119                         // Maintain some level of backwards compatability
 120                         // If people request feeds using the old parameters, redirect to API
 121                         $apiParams = array(
 122                                 'action' => 'feedcontributions',
 123                                 'feedformat' => $feedType,
 124                                 'user' => $target,
 125                         );
 126                         if ( $this->opts['topOnly'] ) {
 127                                 $apiParams['toponly'] = true;
 128                         }
 129                         if ( $this->opts['deletedOnly'] ) {
 130                                 $apiParams['deletedonly'] = true;
 131                         }
 132                         if ( $this->opts['tagFilter'] !== '' ) {
 133                                 $apiParams['tagfilter'] = $this->opts['tagFilter'];
 134                         }
 135                         if ( $this->opts['namespace'] !== '' ) {
 136                                 $apiParams['namespace'] = $this->opts['namespace'];
 137                         }
 138                         if ( $this->opts['year'] !== null ) {
 139                                 $apiParams['year'] = $this->opts['year'];
 140                         }
 141                         if ( $this->opts['month'] !== null ) {
 142                                 $apiParams['month'] = $this->opts['month'];
 143                         }
 144
 145                         $url = wfScript( 'api' ) . '?' . wfArrayToCGI( $apiParams );
 146
 147                         $wgOut->redirect( $url, '301' );
 148                         return;
 149                 }
 150
 151                 // Add RSS/atom links
 152                 $this->addFeedLinks( array( 'action' => 'feedcontributions', 'user' => $target ) );
 153
 154                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 155
 156                         $wgOut->addHTML( $this->getForm() );
 157
 158                         $pager = new ContribsPager( array(
 159                                 'target' => $target,
 160                                 'namespace' => $this->opts['namespace'],
 161                                 'year' => $this->opts['year'],
 162                                 'month' => $this->opts['month'],
 163                                 'deletedOnly' => $this->opts['deletedOnly'],
 164                                 'topOnly' => $this->opts['topOnly'],
 165                         ) );
 166                         if( !$pager->getNumRows() ) {
 167                                 $wgOut->addWikiMsg( 'nocontribs', $target );
 168                         } else {
 169                                 # Show a message about slave lag, if applicable
 170                                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 171                                 if( $lag > 0 )
 172                                         $wgOut->showLagWarning( $lag );
 173
 174                                 $wgOut->addHTML(
 175                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 176                                         $pager->getBody() .
 177                                         '<p>' . $pager->getNavigationBar() . '</p>'
 178                                 );
 179                         }
 180                         $wgOut->preventClickjacking( $pager->getPreventClickjacking() );
 181
 182                         # Show the appropriate "footer" message - WHOIS tools, etc.
 183                         if( $target != 'newbies' ) {
 184                                 $message = 'sp-contributions-footer';
 185                                 if ( IP::isIPAddress( $target ) ) {
 186                                         $message = 'sp-contributions-footer-anon';
 187                                 } else {
 188                                         $user = User::newFromName( $target );
 189                                         if ( !$user || $user->isAnon() ) {
 190                                                 // No message for non-existing users
 191                                                 return;
 192                                         }
 193                                 }
 194
 195                                 if( !wfMessage( $message, $target )->isDisabled() ) {
 196                                         $wgOut->wrapWikiMsg(
 197                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 198                                                 array( $message, $target ) );
 199                                 }
 200                         }
 201                 }
 202         }
 203
 204         /**
 205          * Generates the subheading with links
 206          * @param $nt Title object for the target
 207          * @param $id Integer: User ID for the target
 208          * @return String: appropriately-escaped HTML to be output literally
 209          * @todo FIXME: Almost the same as getSubTitle in SpecialDeletedContributions.php. Could be combined.
 210          */
 211         protected function contributionsSub( $nt, $id ) {
 212                 global $wgLang, $wgUser, $wgOut;
 213
 214                 $sk = $this->getSkin();
 215
 216                 if ( $id === null ) {
 217                         $user = htmlspecialchars( $nt->getText() );
 218                 } else {
 219                         $user = $sk->link( $nt, htmlspecialchars( $nt->getText() ) );
 220                 }
 221                 $userObj = User::newFromName( $nt->getText(), /* check for username validity not needed */ false );
 222                 $talk = $nt->getTalkPage();
 223                 if( $talk ) {
 224                         $tools = self::getUserLinks( $nt, $talk, $userObj, $wgUser );
 225                         $links = $wgLang->pipeList( $tools );
 226
 227                         // Show a note if the user is blocked and display the last block log entry.
 228                         if ( $userObj->isBlocked() ) {
 229                                 LogEventsList::showLogExtract(
 230                                         $wgOut,
 231                                         'block',
 232                                         $nt->getPrefixedText(),
 233                                         '',
 234                                         array(
 235                                                 'lim' => 1,
 236                                                 'showIfEmpty' => false,
 237                                                 'msgKey' => array(
 238                                                         $userObj->isAnon() ?
 239                                                                 'sp-contributions-blocked-notice-anon' :
 240                                                                 'sp-contributions-blocked-notice',
 241                                                         $nt->getText() # Support GENDER in 'sp-contributions-blocked-notice'
 242                                                 ),
 243                                                 'offset' => '' # don't use $wgRequest parameter offset
 244                                         )
 245                                 );
 246                         }
 247                 }
 248
 249                 // Old message 'contribsub' had one parameter, but that doesn't work for
 250                 // languages that want to put the "for" bit right after $user but before
 251                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 252                 // otherwise use 'contribsub2'.
 253                 if( wfEmptyMsg( 'contribsub' ) ) {
 254                         return wfMsgHtml( 'contribsub2', $user, $links );
 255                 } else {
 256                         return wfMsgHtml( 'contribsub', "$user ($links)" );
 257                 }
 258         }
 259
 260         /**
 261          * Links to different places.
 262          * @param $userpage Title: Target user page
 263          * @param $talkpage Title: Talk page
 264          * @param $target User: Target user object
 265          * @param $subject User: The viewing user ($wgUser is still checked in some cases, like userrights page!!)
 266          */
 267         public static function getUserLinks( Title $userpage, Title $talkpage, User $target, User $subject ) {
 268
 269                 $sk = $subject->getSkin();
 270                 $id = $target->getId();
 271                 $username = $target->getName();
 272
 273                 $tools[] = $sk->link( $talkpage, wfMsgHtml( 'sp-contributions-talk' ) );
 274
 275                 if( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 276                         if( $subject->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 277                                 if ( $target->isBlocked() ) {
 278                                         $tools[] = $sk->linkKnown( # Change block link
 279                                                 SpecialPage::getTitleFor( 'Block', $username ),
 280                                                 wfMsgHtml( 'change-blocklink' )
 281                                         );
 282                                         $tools[] = $sk->linkKnown( # Unblock link
 283                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 284                                                 wfMsgHtml( 'unblocklink' )
 285                                         );
 286                                 } else { # User is not blocked
 287                                         $tools[] = $sk->linkKnown( # Block link
 288                                                 SpecialPage::getTitleFor( 'Block', $username ),
 289                                                 wfMsgHtml( 'blocklink' )
 290                                         );
 291                                 }
 292                         }
 293                         # Block log link
 294                         $tools[] = $sk->linkKnown(
 295                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 296                                 wfMsgHtml( 'sp-contributions-blocklog' ),
 297                                 array(),
 298                                 array(
 299                                         'page' => $userpage->getPrefixedText()
 300                                 )
 301                         );
 302                 }
 303                 # Uploads
 304                 $tools[] = $sk->linkKnown(
 305                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 306                         wfMsgHtml( 'sp-contributions-uploads' )
 307                 );
 308
 309                 # Other logs link
 310                 $tools[] = $sk->linkKnown(
 311                         SpecialPage::getTitleFor( 'Log', $username ),
 312                         wfMsgHtml( 'sp-contributions-logs' )
 313                 );
 314
 315                 # Add link to deleted user contributions for priviledged users
 316                 if( $subject->isAllowed( 'deletedhistory' ) && !$subject->isBlocked() ) {
 317                         $tools[] = $sk->linkKnown(
 318                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 319                                 wfMsgHtml( 'sp-contributions-deleted' )
 320                         );
 321                 }
 322
 323                 # Add a link to change user rights for privileged users
 324                 $userrightsPage = new UserrightsPage();
 325                 if( $id !== null && $userrightsPage->userCanChangeRights( $target ) ) {
 326                         $tools[] = $sk->linkKnown(
 327                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 328                                 wfMsgHtml( 'sp-contributions-userrights' )
 329                         );
 330                 }
 331
 332                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 333                 return $tools;
 334         }
 335
 336         /**
 337          * Generates the namespace selector form with hidden attributes.
 338          * @return String: HTML fragment
 339          */
 340         protected function getForm() {
 341                 global $wgScript, $wgMiserMode;
 342
 343                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 344                 if( !isset( $this->opts['target'] ) ) {
 345                         $this->opts['target'] = '';
 346                 } else {
 347                         $this->opts['target'] = str_replace( '_' , ' ' , $this->opts['target'] );
 348                 }
 349
 350                 if( !isset( $this->opts['namespace'] ) ) {
 351                         $this->opts['namespace'] = '';
 352                 }
 353
 354                 if( !isset( $this->opts['contribs'] ) ) {
 355                         $this->opts['contribs'] = 'user';
 356                 }
 357
 358                 if( !isset( $this->opts['year'] ) ) {
 359                         $this->opts['year'] = '';
 360                 }
 361
 362                 if( !isset( $this->opts['month'] ) ) {
 363                         $this->opts['month'] = '';
 364                 }
 365
 366                 if( $this->opts['contribs'] == 'newbie' ) {
 367                         $this->opts['target'] = '';
 368                 }
 369
 370                 if( !isset( $this->opts['tagFilter'] ) ) {
 371                         $this->opts['tagFilter'] = '';
 372                 }
 373
 374                 if( !isset( $this->opts['topOnly'] ) ) {
 375                         $this->opts['topOnly'] = false;
 376                 }
 377
 378                 $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'class' => 'mw-contributions-form' ) );
 379
 380                 # Add hidden params for tracking except for parameters in $skipParameters
 381                 $skipParameters = array( 'namespace', 'deletedOnly', 'target', 'contribs', 'year', 'month', 'topOnly' );
 382                 foreach ( $this->opts as $name => $value ) {
 383                         if( in_array( $name, $skipParameters ) ) {
 384                                 continue;
 385                         }
 386                         $f .= "\t" . Html::hidden( $name, $value ) . "\n";
 387                 }
 388
 389                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagFilter'] );
 390
 391                 $fNS = '';
 392                 if ( !$wgMiserMode ) {
 393                         $fNS = Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 394                                 Xml::label( wfMsg( 'namespace' ), 'namespace' ) . ' ' . Xml::namespaceSelector( $this->opts['namespace'], '' )
 395                         );
 396                 }
 397
 398                 $f .=   Xml::fieldset( wfMsg( 'sp-contributions-search' ) ) .
 399                         Xml::radioLabel( wfMsgExt( 'sp-contributions-newbies', array( 'parsemag' ) ),
 400                                 'contribs', 'newbie' , 'newbie', $this->opts['contribs'] == 'newbie' ) . '<br />' .
 401                         Xml::radioLabel( wfMsgExt( 'sp-contributions-username', array( 'parsemag' ) ),
 402                                 'contribs' , 'user', 'user', $this->opts['contribs'] == 'user' ) . ' ' .
 403                         Html::input( 'target', $this->opts['target'], 'text', array(
 404                                 'size' => '20',
 405                                 'required' => ''
 406                         ) + ( $this->opts['target'] ? array() : array( 'autofocus' ) ) ) . ' '.
 407                         $fNS.
 408                         Xml::checkLabel( wfMsg( 'history-show-deleted' ),
 409                                 'deletedOnly', 'mw-show-deleted-only', $this->opts['deletedOnly'] ) . '<br />' .
 410                         Xml::tags( 'p', null, Xml::checkLabel( wfMsg( 'sp-contributions-toponly' ),
 411                                 'topOnly', 'mw-show-top-only', $this->opts['topOnly'] ) ) .
 412                         ( $tagFilter ? Xml::tags( 'p', null, implode( '&#160;', $tagFilter ) ) : '' ) .
 413                         Html::rawElement( 'p', array( 'style' => 'white-space: nowrap' ),
 414                                 Xml::dateMenu( $this->opts['year'], $this->opts['month'] ) . ' ' .
 415                                 Xml::submitButton( wfMsg( 'sp-contributions-submit' ) )
 416                         ) . ' ';
 417                 $explain = wfMessage( 'sp-contributions-explain' );
 418                 if ( $explain->exists() ) {
 419                         $f .= "<p id='mw-sp-contributions-explain'>{$explain}</p>";
 420                 }
 421                 $f .= Xml::closeElement('fieldset' ) .
 422                         Xml::closeElement( 'form' );
 423                 return $f;
 424         }
 425 }
 426
 427 /**
 428  * Pager for Special:Contributions
 429  * @ingroup SpecialPage Pager
 430  */
 431 class ContribsPager extends ReverseChronologicalPager {
 432         public $mDefaultDirection = true;
 433         var $messages, $target;
 434         var $namespace = '', $mDb;
 435         var $preventClickjacking = false;
 436
 437         function __construct( $options ) {
 438                 parent::__construct();
 439
 440                 $msgs = array( 'uctop', 'diff', 'newarticle', 'rollbacklink', 'diff', 'hist', 'rev-delundel', 'pipe-separator' );
 441
 442                 foreach( $msgs as $msg ) {
 443                         $this->messages[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
 444                 }
 445
 446                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 447                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 448                 $this->tagFilter = isset( $options['tagFilter'] ) ? $options['tagFilter'] : false;
 449
 450                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 451                 $this->topOnly = !empty( $options['topOnly'] );
 452
 453                 $year = isset( $options['year'] ) ? $options['year'] : false;
 454                 $month = isset( $options['month'] ) ? $options['month'] : false;
 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 getTitle() {
 467                 return SpecialPage::getTitleFor( 'Contributions' );
 468         }
 469
 470         function getQueryInfo() {
 471                 global $wgUser;
 472                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 473
 474                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 475                 // Paranoia: avoid brute force searches (bug 17342)
 476                 if( !$wgUser->isAllowed( 'deletedhistory' ) || $wgUser->isBlocked() ) {
 477                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::DELETED_USER) . ' = 0';
 478                 } elseif( !$wgUser->isAllowed( 'suppressrevision' ) ) {
 479                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::SUPPRESSED_USER) .
 480                                 ' != ' . Revision::SUPPRESSED_USER;
 481                 }
 482                 $join_cond['page'] = array( 'INNER JOIN', 'page_id=rev_page' );
 483
 484                 $fields = array(
 485                         'page_namespace', 'page_title', 'page_is_new', 'page_latest', 'page_is_redirect',
 486                         'page_len','rev_id', 'rev_page', 'rev_text_id', 'rev_timestamp', 'rev_comment',
 487                         'rev_minor_edit', 'rev_user', 'rev_user_text', 'rev_parent_id', 'rev_deleted'
 488                 );
 489
 490                 $queryInfo = array(
 491                         'tables' => $tables,
 492                         'fields' => array(
 493                                 'page_namespace', 'page_title', 'page_is_new', 'page_latest', 'page_is_redirect',
 494                                 'page_len','rev_id', 'rev_page', 'rev_text_id', 'rev_timestamp', 'rev_comment',
 495                                 'rev_minor_edit', 'rev_user', 'rev_user_text', 'rev_parent_id', 'rev_deleted',
 496                                 'rc_old_len', 'rc_new_len'
 497                         ),
 498                         'conds' => $conds,
 499                         'options' => array( 'USE INDEX' => array('revision' => $index) ),
 500                         'join_conds' => $join_cond
 501                 );
 502                 ChangeTags::modifyDisplayQuery(
 503                         $queryInfo['tables'],
 504                         $queryInfo['fields'],
 505                         $queryInfo['conds'],
 506                         $queryInfo['join_conds'],
 507                         $queryInfo['options'],
 508                         $this->tagFilter
 509                 );
 510
 511                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 512                 return $queryInfo;
 513         }
 514
 515         function getUserCond() {
 516                 $condition = array();
 517                 $join_conds = array();
 518
 519                 if( $this->target == 'newbies' ) {
 520                         $tables = array( 'recentchanges', 'user_groups', 'page', 'revision' );
 521                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 522                         $condition[] = 'rev_user >' . (int)($max - $max / 100);
 523                         $condition[] = 'ug_group IS NULL';
 524                         $index = 'user_timestamp';
 525                         # @todo FIXME: Other groups may have 'bot' rights
 526                         $join_conds['user_groups'] = array( 'LEFT JOIN', "ug_user = rev_user AND ug_group = 'bot'" );
 527                         $join_conds['recentchanges'] = array( 'INNER JOIN', "rev_id = rc_this_oldid" );
 528                 } else {
 529                         $tables = array( 'recentchanges', 'page', 'revision' );
 530                         $condition['rev_user_text'] = $this->target;
 531                         $join_conds['recentchanges'] = array( 'INNER JOIN', "rev_id = rc_this_oldid" );
 532                         $index = 'usertext_timestamp';
 533                 }
 534                 if( $this->deletedOnly ) {
 535                         $condition[] = "rev_deleted != '0'";
 536                 }
 537                 if( $this->topOnly ) {
 538                         $condition[] = "rev_id = page_latest";
 539                 }
 540                 return array( $tables, $index, $condition, $join_conds );
 541         }
 542
 543         function getNamespaceCond() {
 544                 global $wgMiserMode;
 545                 if( $this->namespace !== '' && !$wgMiserMode ) {
 546                         return array( 'page_namespace' => (int)$this->namespace );
 547                 } else {
 548                         return array();
 549                 }
 550         }
 551
 552         function getIndexField() {
 553                 return 'rev_timestamp';
 554         }
 555
 556         function getStartBody() {
 557                 return "<ul>\n";
 558         }
 559
 560         function getEndBody() {
 561                 return "</ul>\n";
 562         }
 563
 564         /**
 565          * Generates each row in the contributions list.
 566          *
 567          * Contributions which are marked "top" are currently on top of the history.
 568          * For these contributions, a [rollback] link is shown for users with roll-
 569          * back privileges. The rollback link restores the most recent version that
 570          * was not written by the target user.
 571          *
 572          * @todo This would probably look a lot nicer in a table.
 573          */
 574         function formatRow( $row ) {
 575                 global $wgUser, $wgLang;
 576                 wfProfileIn( __METHOD__ );
 577
 578                 $sk = $this->getSkin();
 579                 $rev = new Revision( $row );
 580                 $classes = array();
 581
 582                 $page = Title::newFromRow( $row );
 583                 $link = $sk->link(
 584                         $page,
 585                         htmlspecialchars( $page->getPrefixedText() ),
 586                         array(),
 587                         $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 588                 );
 589                 # Mark current revisions
 590                 $topmarktext = '';
 591                 if( $row->rev_id == $row->page_latest ) {
 592                         $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 593                         # Add rollback link
 594                         if( !$row->page_is_new && $page->quickUserCan( 'rollback' )
 595                                 && $page->quickUserCan( 'edit' ) )
 596                         {
 597                                 $this->preventClickjacking();
 598                                 $topmarktext .= ' '.$sk->generateRollback( $rev );
 599                         }
 600                 }
 601                 # Is there a visible previous revision?
 602                 if( $rev->userCan( Revision::DELETED_TEXT ) && $rev->getParentId() !== 0 ) {
 603                         $difftext = $sk->linkKnown(
 604                                 $page,
 605                                 $this->messages['diff'],
 606                                 array(),
 607                                 array(
 608                                         'diff' => 'prev',
 609                                         'oldid' => $row->rev_id
 610                                 )
 611                         );
 612                 } else {
 613                         $difftext = $this->messages['diff'];
 614                 }
 615                 $histlink = $sk->linkKnown(
 616                         $page,
 617                         $this->messages['hist'],
 618                         array(),
 619                         array( 'action' => 'history' )
 620                 );
 621
 622                 $comment = $wgLang->getDirMark() . $sk->revComment( $rev, false, true );
 623                 $date = $wgLang->timeanddate( wfTimestamp( TS_MW, $row->rev_timestamp ), true );
 624                 if( $rev->userCan( Revision::DELETED_TEXT ) ) {
 625                         $d = $sk->linkKnown(
 626                                 $page,
 627                                 htmlspecialchars($date),
 628                                 array(),
 629                                 array( 'oldid' => intval( $row->rev_id ) )
 630                         );
 631                 } else {
 632                         $d = htmlspecialchars( $date );
 633                 }
 634                 if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 635                         $d = '<span class="history-deleted">' . $d . '</span>';
 636                 }
 637
 638                 if( $this->target == 'newbies' ) {
 639                         $userlink = ' . . ' . $sk->userLink( $row->rev_user, $row->rev_user_text );
 640                         $userlink .= ' ' . wfMsg( 'parentheses', $sk->userTalkLink( $row->rev_user, $row->rev_user_text ) ) . ' ';
 641                 } else {
 642                         $userlink = '';
 643                 }
 644
 645                 if( $rev->getParentId() === 0 ) {
 646                         $nflag = ChangesList::flag( 'newpage' );
 647                 } else {
 648                         $nflag = '';
 649                 }
 650
 651                 if( $rev->isMinor() ) {
 652                         $mflag = ChangesList::flag( 'minor' );
 653                 } else {
 654                         $mflag = '';
 655                 }
 656
 657                 // Don't show useless link to people who cannot hide revisions
 658                 $canHide = $wgUser->isAllowed( 'deleterevision' );
 659                 if( $canHide || ($rev->getVisibility() && $wgUser->isAllowed('deletedhistory')) ) {
 660                         if( !$rev->userCan( Revision::DELETED_RESTRICTED ) ) {
 661                                 $del = $this->mSkin->revDeleteLinkDisabled( $canHide ); // revision was hidden from sysops
 662                         } else {
 663                                 $query = array(
 664                                         'type'   => 'revision',
 665                                         'target' => $page->getPrefixedDbkey(),
 666                                         'ids'    => $rev->getId()
 667                                 );
 668                                 $del = $this->mSkin->revDeleteLink( $query,
 669                                         $rev->isDeleted( Revision::DELETED_RESTRICTED ), $canHide );
 670                         }
 671                         $del .= ' ';
 672                 } else {
 673                         $del = '';
 674                 }
 675
 676                 $diffHistLinks = '(' . $difftext . $this->messages['pipe-separator'] . $histlink . ')';
 677
 678                 $diffOut = ' . . ' . $wgLang->getDirMark() .
 679                         ChangesList::showCharacterDifference( $row->rc_old_len, $row->rc_new_len );
 680
 681                 $ret = "{$del}{$d} {$diffHistLinks} {$nflag}{$mflag} {$link}{$diffOut}{$userlink} {$comment} {$topmarktext}";
 682
 683                 # Denote if username is redacted for this edit
 684                 if( $rev->isDeleted( Revision::DELETED_USER ) ) {
 685                         $ret .= " <strong>" . wfMsgHtml('rev-deleted-user-contribs') . "</strong>";
 686                 }
 687
 688                 # Tags, if any.
 689                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $row->ts_tags, 'contributions' );
 690                 $classes = array_merge( $classes, $newClasses );
 691                 $ret .= " $tagSummary";
 692
 693                 // Let extensions add data
 694                 wfRunHooks( 'ContributionsLineEnding', array( &$this, &$ret, $row ) );
 695
 696                 $classes = implode( ' ', $classes );
 697                 $ret = "<li class=\"$classes\">$ret</li>\n";
 698                 wfProfileOut( __METHOD__ );
 699                 return $ret;
 700         }
 701
 702         /**
 703          * Get the Database object in use
 704          *
 705          * @return DatabaseBase
 706          */
 707         public function getDatabase() {
 708                 return $this->mDb;
 709         }
 710
 711         /**
 712          * Overwrite Pager function and return a helpful comment
 713          */
 714         function getSqlComment() {
 715                 if ( $this->namespace || $this->deletedOnly ) {
 716                         return 'contributions page filtered for namespace or RevisionDeleted edits'; // potentially slow, see CR r58153
 717                 } else {
 718                         return 'contributions page unfiltered';
 719                 }
 720         }
 721
 722         protected function preventClickjacking() {
 723                 $this->preventClickjacking = true;
 724         }
 725
 726         public function getPreventClickjacking() {
 727                 return $this->preventClickjacking;
 728         }
 729 }