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                 $feedType = $wgRequest->getVal( 'feed' );
 119                 if( $feedType ) {
 120                         $apiParams = array(
 121                                 'action' => 'feedcontributions',
 122                                 'feedformat' => $feedType,
 123                                 'user' => $target,
 124                         );
 125                         if ( $this->opts['topOnly'] ) {
 126                                 $apiParams['toponly'] = true;
 127                         }
 128                         if ( $this->opts['showSizeDiff'] ) {
 129                                 $apiParams['showsizediff'] = true;
 130                         }
 131                         if ( $this->opts['deletedOnly'] ) {
 132                                 $apiParams['deletedonly'] = true;
 133                         }
 134                         if ( $this->opts['tagFilter'] !== '' ) {
 135                                 $apiParams['tagfilter'] = $this->opts['tagFilter'];
 136                         }
 137                         if ( $this->opts['namespace'] !== '' ) {
 138                                 $apiParams['namespace'] = $this->opts['namespace'];
 139                         }
 140                         if ( $this->opts['year'] !== null ) {
 141                                 $apiParams['year'] = $this->opts['year'];
 142                         }
 143                         if ( $this->opts['month'] !== null ) {
 144                                 $apiParams['month'] = $this->opts['month'];
 145                         }
 146
 147                         $url = wfScript( 'api' ) . '?' . wfArrayToCGI( $apiParams );
 148
 149                         $wgOut->redirect( $url, '301' );
 150                         return;
 151                 }
 152
 153                 // Add RSS/atom links
 154                 $this->addFeedLinks( array( 'action' => 'feedcontributions', 'user' => $wgUser->getName() ) );
 155
 156                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 157
 158                         $wgOut->addHTML( $this->getForm() );
 159
 160                         $pager = new ContribsPager( array(
 161                                 'target' => $target,
 162                                 'namespace' => $this->opts['namespace'],
 163                                 'year' => $this->opts['year'],
 164                                 'month' => $this->opts['month'],
 165                                 'deletedOnly' => $this->opts['deletedOnly'],
 166                                 'topOnly' => $this->opts['topOnly'],
 167                                 'showSizeDiff' => $this->opts['showSizeDiff'],
 168                         ) );
 169                         if( !$pager->getNumRows() ) {
 170                                 $wgOut->addWikiMsg( 'nocontribs', $target );
 171                         } else {
 172                                 # Show a message about slave lag, if applicable
 173                                 if( ( $lag = $pager->getDatabase()->getLag() ) > 0 )
 174                                         $wgOut->showLagWarning( $lag );
 175
 176                                 $wgOut->addHTML(
 177                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 178                                         $pager->getBody() .
 179                                         '<p>' . $pager->getNavigationBar() . '</p>'
 180                                 );
 181                         }
 182                         $wgOut->preventClickjacking( $pager->getPreventClickjacking() );
 183
 184                         # Show the appropriate "footer" message - WHOIS tools, etc.
 185                         if( $target != 'newbies' ) {
 186                                 $message = 'sp-contributions-footer';
 187                                 if ( IP::isIPAddress( $target ) ) {
 188                                         $message = 'sp-contributions-footer-anon';
 189                                 } else {
 190                                         $user = User::newFromName( $target );
 191                                         if ( !$user || $user->isAnon() ) {
 192                                                 // No message for non-existing users
 193                                                 return;
 194                                         }
 195                                 }
 196
 197                                 if( !wfMessage( $message, $target )->isDisabled() ) {
 198                                         $wgOut->wrapWikiMsg(
 199                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 200                                                 array( $message, $target ) );
 201                                 }
 202                         }
 203                 }
 204         }
 205
 206         /**
 207          * Generates the subheading with links
 208          * @param $nt Title object for the target
 209          * @param $id Integer: User ID for the target
 210          * @return String: appropriately-escaped HTML to be output literally
 211          * @todo FIXME: Almost the same as getSubTitle in SpecialDeletedContributions.php. Could be combined.
 212          */
 213         protected function contributionsSub( $nt, $id ) {
 214                 global $wgLang, $wgUser, $wgOut;
 215
 216                 $sk = $wgUser->getSkin();
 217
 218                 if ( $id === null ) {
 219                         $user = htmlspecialchars( $nt->getText() );
 220                 } else {
 221                         $user = $sk->link( $nt, htmlspecialchars( $nt->getText() ) );
 222                 }
 223                 $userObj = User::newFromName( $nt->getText(), /* check for username validity not needed */ false );
 224                 $talk = $nt->getTalkPage();
 225                 if( $talk ) {
 226                         $tools = self::getUserLinks( $nt, $talk, $userObj, $wgUser );
 227                         $links = $wgLang->pipeList( $tools );
 228
 229                         // Show a note if the user is blocked and display the last block log entry.
 230                         if ( $userObj->isBlocked() ) {
 231                                 LogEventsList::showLogExtract(
 232                                         $wgOut,
 233                                         'block',
 234                                         $nt->getPrefixedText(),
 235                                         '',
 236                                         array(
 237                                                 'lim' => 1,
 238                                                 'showIfEmpty' => false,
 239                                                 'msgKey' => array(
 240                                                         $userObj->isAnon() ?
 241                                                                 'sp-contributions-blocked-notice-anon' :
 242                                                                 'sp-contributions-blocked-notice',
 243                                                         $nt->getText() # Support GENDER in 'sp-contributions-blocked-notice'
 244                                                 ),
 245                                                 'offset' => '' # don't use $wgRequest parameter offset
 246                                         )
 247                                 );
 248                         }
 249                 }
 250
 251                 // Old message 'contribsub' had one parameter, but that doesn't work for
 252                 // languages that want to put the "for" bit right after $user but before
 253                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 254                 // otherwise use 'contribsub2'.
 255                 if( wfEmptyMsg( 'contribsub' ) ) {
 256                         return wfMsgHtml( 'contribsub2', $user, $links );
 257                 } else {
 258                         return wfMsgHtml( 'contribsub', "$user ($links)" );
 259                 }
 260         }
 261
 262         /**
 263          * Links to different places.
 264          * @param $userpage Title: Target user page
 265          * @param $talkpage Title: Talk page
 266          * @param $target User: Target user object
 267          * @param $subject User: The viewing user ($wgUser is still checked in some cases, like userrights page!!)
 268          */
 269         public static function getUserLinks( Title $userpage, Title $talkpage, User $target, User $subject ) {
 270
 271                 $sk = $subject->getSkin();
 272                 $id = $target->getId();
 273                 $username = $target->getName();
 274
 275                 $tools[] = $sk->link( $talkpage, wfMsgHtml( 'sp-contributions-talk' ) );
 276
 277                 if( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 278                         if( $subject->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 279                                 if ( $target->isBlocked() ) {
 280                                         $tools[] = $sk->linkKnown( # Change block link
 281                                                 SpecialPage::getTitleFor( 'Block', $username ),
 282                                                 wfMsgHtml( 'change-blocklink' )
 283                                         );
 284                                         $tools[] = $sk->linkKnown( # Unblock link
 285                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 286                                                 wfMsgHtml( 'unblocklink' )
 287                                         );
 288                                 } else { # User is not blocked
 289                                         $tools[] = $sk->linkKnown( # Block link
 290                                                 SpecialPage::getTitleFor( 'Block', $username ),
 291                                                 wfMsgHtml( 'blocklink' )
 292                                         );
 293                                 }
 294                         }
 295                         # Block log link
 296                         $tools[] = $sk->linkKnown(
 297                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 298                                 wfMsgHtml( 'sp-contributions-blocklog' ),
 299                                 array(),
 300                                 array(
 301                                         'page' => $userpage->getPrefixedText()
 302                                 )
 303                         );
 304                 }
 305                 # Uploads
 306                 $tools[] = $sk->linkKnown(
 307                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 308                         wfMsgHtml( 'sp-contributions-uploads' )
 309                 );
 310
 311                 # Other logs link
 312                 $tools[] = $sk->linkKnown(
 313                         SpecialPage::getTitleFor( 'Log', $username ),
 314                         wfMsgHtml( 'sp-contributions-logs' )
 315                 );
 316
 317                 # Add link to deleted user contributions for priviledged users
 318                 if( $subject->isAllowed( 'deletedhistory' ) ) {
 319                         $tools[] = $sk->linkKnown(
 320                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 321                                 wfMsgHtml( 'sp-contributions-deleted' )
 322                         );
 323                 }
 324
 325                 # Add a link to change user rights for privileged users
 326                 $userrightsPage = new UserrightsPage();
 327                 if( $id !== null && $userrightsPage->userCanChangeRights( $target ) ) {
 328                         $tools[] = $sk->linkKnown(
 329                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 330                                 wfMsgHtml( 'sp-contributions-userrights' )
 331                         );
 332                 }
 333
 334                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 335                 return $tools;
 336         }
 337
 338         /**
 339          * Generates the namespace selector form with hidden attributes.
 340          * @return String: HTML fragment
 341          */
 342         protected function getForm() {
 343                 global $wgScript, $wgMiserMode;
 344
 345                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 346                 if( !isset( $this->opts['target'] ) ) {
 347                         $this->opts['target'] = '';
 348                 } else {
 349                         $this->opts['target'] = str_replace( '_' , ' ' , $this->opts['target'] );
 350                 }
 351
 352                 if( !isset( $this->opts['namespace'] ) ) {
 353                         $this->opts['namespace'] = '';
 354                 }
 355
 356                 if( !isset( $this->opts['contribs'] ) ) {
 357                         $this->opts['contribs'] = 'user';
 358                 }
 359
 360                 if( !isset( $this->opts['year'] ) ) {
 361                         $this->opts['year'] = '';
 362                 }
 363
 364                 if( !isset( $this->opts['month'] ) ) {
 365                         $this->opts['month'] = '';
 366                 }
 367
 368                 if( $this->opts['contribs'] == 'newbie' ) {
 369                         $this->opts['target'] = '';
 370                 }
 371
 372                 if( !isset( $this->opts['tagFilter'] ) ) {
 373                         $this->opts['tagFilter'] = '';
 374                 }
 375
 376                 if( !isset( $this->opts['topOnly'] ) ) {
 377                         $this->opts['topOnly'] = false;
 378                 }
 379
 380                 if( !isset( $this->opts['showSizeDiff'] ) ) {
 381                         $this->opts['showSizeDiff'] = !$wgMiserMode;
 382                 }
 383
 384                 $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'class' => 'mw-contributions-form' ) );
 385
 386                 # Add hidden params for tracking except for parameters in $skipParameters
 387                 $skipParameters = array( 'namespace', 'deletedOnly', 'target', 'contribs', 'year', 'month', 'topOnly', 'showSizeDiff' );
 388                 foreach ( $this->opts as $name => $value ) {
 389                         if( in_array( $name, $skipParameters ) ) {
 390                                 continue;
 391                         }
 392                         $f .= "\t" . Html::hidden( $name, $value ) . "\n";
 393                 }
 394
 395                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagFilter'] );
 396
 397                 $fNS = '';
 398                 $fShowDiff = '';
 399                 if ( !$wgMiserMode ) {
 400                         $fNS = Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 401                                         Xml::label( wfMsg( 'namespace' ), 'namespace' ) . ' ' .
 402                                         Xml::namespaceSelector( $this->opts['namespace'], '' )
 403                                 );
 404                         $fShowDiff = Xml::checkLabel( wfMsg( 'sp-contributions-showsizediff' ), 'showSizeDiff', 'mw-show-size-diff', $this->opts['showSizeDiff'] );
 405                 }
 406
 407                 $f .=   Xml::fieldset( wfMsg( 'sp-contributions-search' ) ) .
 408                         Xml::radioLabel( wfMsgExt( 'sp-contributions-newbies', array( 'parsemag' ) ),
 409                                 'contribs', 'newbie' , 'newbie', $this->opts['contribs'] == 'newbie' ) . '<br />' .
 410                         Xml::radioLabel( wfMsgExt( 'sp-contributions-username', array( 'parsemag' ) ),
 411                                 'contribs' , 'user', 'user', $this->opts['contribs'] == 'user' ) . ' ' .
 412                         Html::input( 'target', $this->opts['target'], 'text', array(
 413                                 'size' => '20',
 414                                 'required' => ''
 415                         ) + ( $this->opts['target'] ? array() : array( 'autofocus' ) ) ) . ' '.
 416                         $fNS.
 417                         Xml::checkLabel( wfMsg( 'history-show-deleted' ),
 418                                 'deletedOnly', 'mw-show-deleted-only', $this->opts['deletedOnly'] ) . '<br />' .
 419                         Xml::tags( 'p', null, Xml::checkLabel( wfMsg( 'sp-contributions-toponly' ),
 420                                 'topOnly', 'mw-show-top-only', $this->opts['topOnly'] ) ) .
 421                         $fShowDiff.
 422                         ( $tagFilter ? Xml::tags( 'p', null, implode( '&#160;', $tagFilter ) ) : '' ) .
 423                         Html::rawElement( 'p', array( 'style' => 'white-space: nowrap' ),
 424                                 Xml::dateMenu( $this->opts['year'], $this->opts['month'] ) . ' ' .
 425                                 Xml::submitButton( wfMsg( 'sp-contributions-submit' ) )
 426                         ) . ' ';
 427                 $explain = wfMessage( 'sp-contributions-explain' );
 428                 if ( $explain->exists() ) {
 429                         $f .= "<p id='mw-sp-contributions-explain'>{$explain}</p>";
 430                 }
 431                 $f .= Xml::closeElement('fieldset' ) .
 432                         Xml::closeElement( 'form' );
 433                 return $f;
 434         }
 435 }
 436
 437 /**
 438  * Pager for Special:Contributions
 439  * @ingroup SpecialPage Pager
 440  */
 441 class ContribsPager extends ReverseChronologicalPager {
 442         public $mDefaultDirection = true;
 443         var $messages, $target;
 444         var $namespace = '', $mDb;
 445         var $preventClickjacking = false;
 446
 447         function __construct( $options ) {
 448                 parent::__construct();
 449
 450                 $msgs = array( 'uctop', 'diff', 'newarticle', 'rollbacklink', 'diff', 'hist', 'rev-delundel', 'pipe-separator' );
 451
 452                 foreach( $msgs as $msg ) {
 453                         $this->messages[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
 454                 }
 455
 456                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 457                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 458                 $this->tagFilter = isset( $options['tagFilter'] ) ? $options['tagFilter'] : false;
 459
 460                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 461                 $this->topOnly = !empty( $options['topOnly'] );
 462                 $this->showSizeDiff = !empty( $options['showSizeDiff'] );
 463
 464                 $year = isset( $options['year'] ) ? $options['year'] : false;
 465                 $month = isset( $options['month'] ) ? $options['month'] : false;
 466                 $this->getDateCond( $year, $month );
 467
 468                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 469         }
 470
 471         function getDefaultQuery() {
 472                 $query = parent::getDefaultQuery();
 473                 $query['target'] = $this->target;
 474                 return $query;
 475         }
 476
 477         function getQueryInfo() {
 478                 global $wgUser, $wgMiserMode;
 479                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 480
 481                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 482                 // Paranoia: avoid brute force searches (bug 17342)
 483                 if( !$wgUser->isAllowed( 'deletedhistory' ) ) {
 484                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::DELETED_USER) . ' = 0';
 485                 } elseif( !$wgUser->isAllowed( 'suppressrevision' ) ) {
 486                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::SUPPRESSED_USER) .
 487                                 ' != ' . Revision::SUPPRESSED_USER;
 488                 }
 489                 $join_cond['page'] = array( 'INNER JOIN', 'page_id=rev_page' );
 490
 491                 $fields = array(
 492                         'page_namespace', 'page_title', 'page_is_new', 'page_latest', 'page_is_redirect',
 493                         'page_len','rev_id', 'rev_page', 'rev_text_id', 'rev_timestamp', 'rev_comment',
 494                         'rev_minor_edit', 'rev_user', 'rev_user_text', 'rev_parent_id', 'rev_deleted',
 495                         'rev_len'
 496                 );
 497                 if ( $this->showSizeDiff && !$wgMiserMode ) {
 498                         $fields = array_merge( $fields,  array( 'rc_old_len', 'rc_new_len' ) );
 499                         array_unshift( $tables, 'recentchanges' );
 500                         $join_cond['recentchanges'] = array( 'INNER JOIN', "rev_id = rc_this_oldid" );
 501                 }
 502
 503                 $queryInfo = array(
 504                         'tables' => $tables,
 505                         'fields' => $fields,
 506                         'conds' => $conds,
 507                         'options' => array( 'USE INDEX' => array('revision' => $index) ),
 508                         'join_conds' => $join_cond
 509                 );
 510                 ChangeTags::modifyDisplayQuery(
 511                         $queryInfo['tables'],
 512                         $queryInfo['fields'],
 513                         $queryInfo['conds'],
 514                         $queryInfo['join_conds'],
 515                         $queryInfo['options'],
 516                         $this->tagFilter
 517                 );
 518
 519                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 520                 return $queryInfo;
 521         }
 522
 523         function getUserCond() {
 524                 $condition = array();
 525                 $join_conds = array();
 526
 527                 if( $this->target == 'newbies' ) {
 528                         $tables = array( 'user_groups', 'page', 'revision' );
 529                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 530                         $condition[] = 'rev_user >' . (int)($max - $max / 100);
 531                         $condition[] = 'ug_group IS NULL';
 532                         $index = 'user_timestamp';
 533                         # @todo FIXME: Other groups may have 'bot' rights
 534                         $join_conds['user_groups'] = array( 'LEFT JOIN', "ug_user = rev_user AND ug_group = 'bot'" );
 535                 } else {
 536                         $tables = array( 'page', 'revision' );
 537                         $condition['rev_user_text'] = $this->target;
 538                         $index = 'usertext_timestamp';
 539                 }
 540                 if( $this->deletedOnly ) {
 541                         $condition[] = "rev_deleted != '0'";
 542                 }
 543                 if( $this->topOnly ) {
 544                         $condition[] = "rev_id = page_latest";
 545                 }
 546                 return array( $tables, $index, $condition, $join_conds );
 547         }
 548
 549         function getNamespaceCond() {
 550                 global $wgMiserMode;
 551                 if( $this->namespace !== '' && !$wgMiserMode ) {
 552                         return array( 'page_namespace' => (int)$this->namespace );
 553                 } else {
 554                         return array();
 555                 }
 556         }
 557
 558         function getIndexField() {
 559                 return 'rev_timestamp';
 560         }
 561
 562         function getStartBody() {
 563                 return "<ul>\n";
 564         }
 565
 566         function getEndBody() {
 567                 return "</ul>\n";
 568         }
 569
 570         /**
 571          * Generates each row in the contributions list.
 572          *
 573          * Contributions which are marked "top" are currently on top of the history.
 574          * For these contributions, a [rollback] link is shown for users with roll-
 575          * back privileges. The rollback link restores the most recent version that
 576          * was not written by the target user.
 577          *
 578          * @todo This would probably look a lot nicer in a table.
 579          */
 580         function formatRow( $row ) {
 581                 global $wgUser, $wgLang;
 582                 wfProfileIn( __METHOD__ );
 583
 584                 $sk = $this->getSkin();
 585                 $rev = new Revision( $row );
 586                 $classes = array();
 587
 588                 $page = Title::newFromRow( $row );
 589                 $link = $sk->link(
 590                         $page,
 591                         htmlspecialchars( $page->getPrefixedText() ),
 592                         array(),
 593                         $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 594                 );
 595                 # Mark current revisions
 596                 $topmarktext = '';
 597                 if( $row->rev_id == $row->page_latest ) {
 598                         $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 599                         # Add rollback link
 600                         if( !$row->page_is_new && $page->quickUserCan( 'rollback' )
 601                                 && $page->quickUserCan( 'edit' ) )
 602                         {
 603                                 $this->preventClickjacking();
 604                                 $topmarktext .= ' '.$sk->generateRollback( $rev );
 605                         }
 606                 }
 607                 # Is there a visible previous revision?
 608                 if( $rev->userCan( Revision::DELETED_TEXT ) && $rev->getParentId() !== 0 ) {
 609                         $difftext = $sk->linkKnown(
 610                                 $page,
 611                                 $this->messages['diff'],
 612                                 array(),
 613                                 array(
 614                                         'diff' => 'prev',
 615                                         'oldid' => $row->rev_id
 616                                 )
 617                         );
 618                 } else {
 619                         $difftext = $this->messages['diff'];
 620                 }
 621                 $histlink = $sk->linkKnown(
 622                         $page,
 623                         $this->messages['hist'],
 624                         array(),
 625                         array( 'action' => 'history' )
 626                 );
 627
 628                 $comment = wfUILang()->getDirMark() . $sk->revComment( $rev, false, true );
 629                 $date = $wgLang->timeanddate( wfTimestamp( TS_MW, $row->rev_timestamp ), true );
 630                 if( $rev->userCan( Revision::DELETED_TEXT ) ) {
 631                         $d = $sk->linkKnown(
 632                                 $page,
 633                                 htmlspecialchars($date),
 634                                 array(),
 635                                 array( 'oldid' => intval( $row->rev_id ) )
 636                         );
 637                 } else {
 638                         $d = htmlspecialchars( $date );
 639                 }
 640                 if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 641                         $d = '<span class="history-deleted">' . $d . '</span>';
 642                 }
 643
 644                 if( $this->target == 'newbies' ) {
 645                         $userlink = ' . . ' . $sk->userLink( $row->rev_user, $row->rev_user_text );
 646                         $userlink .= ' ' . wfMsg( 'parentheses', $sk->userTalkLink( $row->rev_user, $row->rev_user_text ) ) . ' ';
 647                 } else {
 648                         $userlink = '';
 649                 }
 650
 651                 if( $rev->getParentId() === 0 ) {
 652                         $nflag = ChangesList::flag( 'newpage' );
 653                 } else {
 654                         $nflag = '';
 655                 }
 656
 657                 if( $rev->isMinor() ) {
 658                         $mflag = ChangesList::flag( 'minor' );
 659                 } else {
 660                         $mflag = '';
 661                 }
 662
 663                 // Don't show useless link to people who cannot hide revisions
 664                 $canHide = $wgUser->isAllowed( 'deleterevision' );
 665                 if( $canHide || ($rev->getVisibility() && $wgUser->isAllowed('deletedhistory')) ) {
 666                         if( !$rev->userCan( Revision::DELETED_RESTRICTED ) ) {
 667                                 $del = $this->mSkin->revDeleteLinkDisabled( $canHide ); // revision was hidden from sysops
 668                         } else {
 669                                 $query = array(
 670                                         'type'   => 'revision',
 671                                         'target' => $page->getPrefixedDbkey(),
 672                                         'ids'    => $rev->getId()
 673                                 );
 674                                 $del = $this->mSkin->revDeleteLink( $query,
 675                                         $rev->isDeleted( Revision::DELETED_RESTRICTED ), $canHide );
 676                         }
 677                         $del .= ' ';
 678                 } else {
 679                         $del = '';
 680                 }
 681
 682                 $diffHistLinks = '(' . $difftext . $this->messages['pipe-separator'] . $histlink . ')';
 683
 684
 685                 $diffOut = ( $this->showSizeDiff ) ? ' . . '.ChangesList::showCharacterDifference( $row->rc_old_len, $row->rc_new_len ) : ' . . '.Linker::formatRevisionSize( $row->rev_len );
 686
 687                 $ret = "{$del}{$d} {$diffHistLinks} {$nflag}{$mflag} {$link}{$diffOut}{$userlink} {$comment} {$topmarktext}";
 688
 689                 # Denote if username is redacted for this edit
 690                 if( $rev->isDeleted( Revision::DELETED_USER ) ) {
 691                         $ret .= " <strong>" . wfMsgHtml('rev-deleted-user-contribs') . "</strong>";
 692                 }
 693
 694                 # Tags, if any.
 695                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $row->ts_tags, 'contributions' );
 696                 $classes = array_merge( $classes, $newClasses );
 697                 $ret .= " $tagSummary";
 698
 699                 // Let extensions add data
 700                 wfRunHooks( 'ContributionsLineEnding', array( &$this, &$ret, $row ) );
 701
 702                 $classes = implode( ' ', $classes );
 703                 $ret = "<li class=\"$classes\">$ret</li>\n";
 704                 wfProfileOut( __METHOD__ );
 705                 return $ret;
 706         }
 707
 708         /**
 709          * Get the Database object in use
 710          *
 711          * @return DatabaseBase
 712          */
 713         public function getDatabase() {
 714                 return $this->mDb;
 715         }
 716
 717         /**
 718          * Overwrite Pager function and return a helpful comment
 719          */
 720         function getSqlComment() {
 721                 if ( $this->namespace || $this->deletedOnly ) {
 722                         return 'contributions page filtered for namespace or RevisionDeleted edits'; // potentially slow, see CR r58153
 723                 } else {
 724                         return 'contributions page unfiltered';
 725                 }
 726         }
 727
 728         protected function preventClickjacking() {
 729                 $this->preventClickjacking = true;
 730         }
 731
 732         public function getPreventClickjacking() {
 733                 return $this->preventClickjacking;
 734         }
 735 }