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
  44                 $this->opts = array();
  45
  46                 if( $par == 'newbies' ) {
  47                         $target = 'newbies';
  48                         $this->opts['contribs'] = 'newbie';
  49                 } elseif( isset( $par ) ) {
  50                         $target = $par;
  51                 } else {
  52                         $target = $wgRequest->getVal( 'target' );
  53                 }
  54
  55                 // check for radiobox
  56                 if( $wgRequest->getVal( 'contribs' ) == 'newbie' ) {
  57                         $target = 'newbies';
  58                         $this->opts['contribs'] = 'newbie';
  59                 }
  60
  61                 $this->opts['deletedOnly'] = $wgRequest->getBool( 'deletedOnly' );
  62
  63                 if( !strlen( $target ) ) {
  64                         $wgOut->addHTML( $this->getForm() );
  65                         return;
  66                 }
  67
  68                 $this->opts['limit'] = $wgRequest->getInt( 'limit', $wgUser->getOption('rclimit') );
  69                 $this->opts['target'] = $target;
  70                 $this->opts['topOnly'] = $wgRequest->getBool( 'topOnly' );
  71
  72                 $nt = Title::makeTitleSafe( NS_USER, $target );
  73                 if( !$nt ) {
  74                         $wgOut->addHTML( $this->getForm() );
  75                         return;
  76                 }
  77                 $id = User::idFromName( $nt->getText() );
  78
  79                 if( $target != 'newbies' ) {
  80                         $target = $nt->getText();
  81                         $wgOut->setSubtitle( $this->contributionsSub( $nt, $id ) );
  82                         $wgOut->setHTMLTitle( wfMsg( 'pagetitle', wfMsgExt( 'contributions-title', array( 'parsemag' ),$target ) ) );
  83                         $user = User::newFromName( $target, false );
  84                         if ( is_object($user) ) {
  85                                 $wgUser->getSkin()->setRelevantUser( $user );
  86                         }
  87                 } else {
  88                         $wgOut->setSubtitle( wfMsgHtml( 'sp-contributions-newbies-sub') );
  89                         $wgOut->setHTMLTitle( wfMsg( 'pagetitle', wfMsg( 'sp-contributions-newbies-title' ) ) );
  90                 }
  91
  92                 if( ( $ns = $wgRequest->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
  93                         $this->opts['namespace'] = intval( $ns );
  94                 } else {
  95                         $this->opts['namespace'] = '';
  96                 }
  97
  98                 $this->opts['tagFilter'] = (string) $wgRequest->getVal( 'tagFilter' );
  99
 100                 // Allows reverts to have the bot flag in recent changes. It is just here to
 101                 // be passed in the form at the top of the page
 102                 if( $wgUser->isAllowed( 'markbotedits' ) && $wgRequest->getBool( 'bot' ) ) {
 103                         $this->opts['bot'] = '1';
 104                 }
 105
 106                 $skip = $wgRequest->getText( 'offset' ) || $wgRequest->getText( 'dir' ) == 'prev';
 107                 # Offset overrides year/month selection
 108                 if( $skip ) {
 109                         $this->opts['year'] = '';
 110                         $this->opts['month'] = '';
 111                 } else {
 112                         $this->opts['year'] = $wgRequest->getIntOrNull( 'year' );
 113                         $this->opts['month'] = $wgRequest->getIntOrNull( 'month' );
 114                 }
 115
 116                 // Add RSS/atom links
 117                 $this->setSyndicated();
 118                 $feedType = $wgRequest->getVal( 'feed' );
 119                 if( $feedType ) {
 120                         return $this->feed( $feedType );
 121                 }
 122
 123                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 124
 125                         $wgOut->addHTML( $this->getForm() );
 126
 127                         $pager = new ContribsPager( array(
 128                                 'target' => $target,
 129                                 'namespace' => $this->opts['namespace'],
 130                                 'year' => $this->opts['year'],
 131                                 'month' => $this->opts['month'],
 132                                 'deletedOnly' => $this->opts['deletedOnly'],
 133                                 'topOnly' => $this->opts['topOnly'],
 134                         ) );
 135                         if( !$pager->getNumRows() ) {
 136                                 $wgOut->addWikiMsg( 'nocontribs', $target );
 137                         } else {
 138                                 # Show a message about slave lag, if applicable
 139                                 if( ( $lag = $pager->getDatabase()->getLag() ) > 0 )
 140                                         $wgOut->showLagWarning( $lag );
 141
 142                                 $wgOut->addHTML(
 143                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 144                                         $pager->getBody() .
 145                                         '<p>' . $pager->getNavigationBar() . '</p>'
 146                                 );
 147                         }
 148                         $wgOut->preventClickjacking( $pager->getPreventClickjacking() );
 149
 150
 151                         # Show the appropriate "footer" message - WHOIS tools, etc.
 152                         if( $target != 'newbies' ) {
 153                                 $message = 'sp-contributions-footer';
 154                                 if ( IP::isIPAddress( $target ) ) {
 155                                         $message = 'sp-contributions-footer-anon';
 156                                 } else {
 157                                         $user = User::newFromName( $target );
 158                                         if ( !$user || $user->isAnon() ) {
 159                                                 // No message for non-existing users
 160                                                 return;
 161                                         }
 162                                 }
 163
 164                                 if( !wfMessage( $message, $target )->isDisabled() ) {
 165                                         $wgOut->wrapWikiMsg(
 166                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 167                                                 array( $message, $target ) );
 168                                 }
 169                         }
 170                 }
 171         }
 172
 173         protected function setSyndicated() {
 174                 global $wgOut;
 175                 $wgOut->setSyndicated( true );
 176                 $wgOut->setFeedAppendQuery( wfArrayToCGI( $this->opts ) );
 177         }
 178
 179         /**
 180          * Generates the subheading with links
 181          * @param $nt Title object for the target
 182          * @param $id Integer: User ID for the target
 183          * @return String: appropriately-escaped HTML to be output literally
 184          * @todo Fixme: almost the same as getSubTitle in SpecialDeletedContributions.php. Could be combined.
 185          */
 186         protected function contributionsSub( $nt, $id ) {
 187                 global $wgLang, $wgUser, $wgOut;
 188
 189                 $sk = $wgUser->getSkin();
 190
 191                 if ( $id === null ) {
 192                         $user = htmlspecialchars( $nt->getText() );
 193                 } else {
 194                         $user = $sk->link( $nt, htmlspecialchars( $nt->getText() ) );
 195                 }
 196                 $userObj = User::newFromName( $nt->getText(), /* check for username validity not needed */ false );
 197                 $talk = $nt->getTalkPage();
 198                 if( $talk ) {
 199                         $tools = self::getUserLinks( $nt, $talk, $userObj, $wgUser );
 200                         $links = $wgLang->pipeList( $tools );
 201
 202                         // Show a note if the user is blocked and display the last block log entry.
 203                         if ( $userObj->isBlocked() ) {
 204                                 LogEventsList::showLogExtract(
 205                                         $wgOut,
 206                                         'block',
 207                                         $nt->getPrefixedText(),
 208                                         '',
 209                                         array(
 210                                                 'lim' => 1,
 211                                                 'showIfEmpty' => false,
 212                                                 'msgKey' => array(
 213                                                         $userObj->isAnon() ?
 214                                                                 'sp-contributions-blocked-notice-anon' :
 215                                                                 'sp-contributions-blocked-notice',
 216                                                         $nt->getText() # Support GENDER in 'sp-contributions-blocked-notice'
 217                                                 ),
 218                                                 'offset' => '' # don't use $wgRequest parameter offset
 219                                         )
 220                                 );
 221                         }
 222                 }
 223
 224                 // Old message 'contribsub' had one parameter, but that doesn't work for
 225                 // languages that want to put the "for" bit right after $user but before
 226                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 227                 // otherwise use 'contribsub2'.
 228                 if( wfEmptyMsg( 'contribsub' ) ) {
 229                         return wfMsgHtml( 'contribsub2', $user, $links );
 230                 } else {
 231                         return wfMsgHtml( 'contribsub', "$user ($links)" );
 232                 }
 233         }
 234
 235         /**
 236          * Links to different places.
 237          * @param $userpage Title: Target user page
 238          * @param $talkpage Title: Talk page
 239          * @param $target User: Target user object
 240          * @param $subject User: The viewing user ($wgUser is still checked in some cases, like userrights page!!)
 241          */
 242         public static function getUserLinks( Title $userpage, Title $talkpage, User $target, User $subject ) {
 243                 global $wgSysopUserBans;
 244
 245                 $sk = $subject->getSkin();
 246                 $id = $target->getId();
 247                 $username = $target->getName();
 248
 249                 $tools[] = $sk->link( $talkpage, wfMsgHtml( 'sp-contributions-talk' ) );
 250
 251                 if( ( $id !== null && $wgSysopUserBans ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 252                         if( $subject->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 253                                 if ( $target->isBlocked() ) {
 254                                         $tools[] = $sk->linkKnown( # Change block link
 255                                                 SpecialPage::getTitleFor( 'Blockip', $username ),
 256                                                 wfMsgHtml( 'change-blocklink' )
 257                                         );
 258                                         $tools[] = $sk->linkKnown( # Unblock link
 259                                                 SpecialPage::getTitleFor( 'Ipblocklist' ),
 260                                                 wfMsgHtml( 'unblocklink' ),
 261                                                 array(),
 262                                                 array(
 263                                                         'action' => 'unblock',
 264                                                         'ip' => $username
 265                                                 )
 266                                         );
 267                                 } else { # User is not blocked
 268                                         $tools[] = $sk->linkKnown( # Block link
 269                                                 SpecialPage::getTitleFor( 'Blockip', $username ),
 270                                                 wfMsgHtml( 'blocklink' )
 271                                         );
 272                                 }
 273                         }
 274                         # Block log link
 275                         $tools[] = $sk->linkKnown(
 276                                 SpecialPage::getTitleFor( 'Log' ),
 277                                 wfMsgHtml( 'sp-contributions-blocklog' ),
 278                                 array(),
 279                                 array(
 280                                         'type' => 'block',
 281                                         'page' => $userpage->getPrefixedText()
 282                                 )
 283                         );
 284                 }
 285                 # Uploads
 286                 $tools[] = $sk->linkKnown(
 287                         SpecialPage::getTitleFor( 'Listfiles' ),
 288                         wfMsgHtml( 'sp-contributions-uploads' ),
 289                         array(),
 290                         array( 'user' => $username )
 291                 );
 292
 293                 # Other logs link
 294                 $tools[] = $sk->linkKnown(
 295                         SpecialPage::getTitleFor( 'Log' ),
 296                         wfMsgHtml( 'sp-contributions-logs' ),
 297                         array(),
 298                         array( 'user' => $username )
 299                 );
 300
 301                 # Add link to deleted user contributions for priviledged users
 302                 if( $subject->isAllowed( 'deletedhistory' ) ) {
 303                         $tools[] = $sk->linkKnown(
 304                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 305                                 wfMsgHtml( 'sp-contributions-deleted' )
 306                         );
 307                 }
 308
 309                 # Add a link to change user rights for privileged users
 310                 $userrightsPage = new UserrightsPage();
 311                 if( $id !== null && $userrightsPage->userCanChangeRights( $target ) ) {
 312                         $tools[] = $sk->linkKnown(
 313                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 314                                 wfMsgHtml( 'sp-contributions-userrights' )
 315                         );
 316                 }
 317
 318                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 319                 return $tools;
 320         }
 321
 322         /**
 323          * Generates the namespace selector form with hidden attributes.
 324          * @return String: HTML fragment
 325          */
 326         protected function getForm() {
 327                 global $wgScript;
 328
 329                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 330                 if( !isset( $this->opts['target'] ) ) {
 331                         $this->opts['target'] = '';
 332                 } else {
 333                         $this->opts['target'] = str_replace( '_' , ' ' , $this->opts['target'] );
 334                 }
 335
 336                 if( !isset( $this->opts['namespace'] ) ) {
 337                         $this->opts['namespace'] = '';
 338                 }
 339
 340                 if( !isset( $this->opts['contribs'] ) ) {
 341                         $this->opts['contribs'] = 'user';
 342                 }
 343
 344                 if( !isset( $this->opts['year'] ) ) {
 345                         $this->opts['year'] = '';
 346                 }
 347
 348                 if( !isset( $this->opts['month'] ) ) {
 349                         $this->opts['month'] = '';
 350                 }
 351
 352                 if( $this->opts['contribs'] == 'newbie' ) {
 353                         $this->opts['target'] = '';
 354                 }
 355
 356                 if( !isset( $this->opts['tagFilter'] ) ) {
 357                         $this->opts['tagFilter'] = '';
 358                 }
 359
 360                 if( !isset( $this->opts['topOnly'] ) ) {
 361                         $this->opts['topOnly'] = false;
 362                 }
 363
 364                 $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'class' => 'mw-contributions-form' ) );
 365
 366                 # Add hidden params for tracking except for parameters in $skipParameters
 367                 $skipParameters = array( 'namespace', 'deletedOnly', 'target', 'contribs', 'year', 'month', 'topOnly' );
 368                 foreach ( $this->opts as $name => $value ) {
 369                         if( in_array( $name, $skipParameters ) ) {
 370                                 continue;
 371                         }
 372                         $f .= "\t" . Html::hidden( $name, $value ) . "\n";
 373                 }
 374
 375                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagFilter'] );
 376
 377                 $f .=   Xml::fieldset( wfMsg( 'sp-contributions-search' ) ) .
 378                         Xml::radioLabel( wfMsgExt( 'sp-contributions-newbies', array( 'parsemag' ) ),
 379                                 'contribs', 'newbie' , 'newbie', $this->opts['contribs'] == 'newbie' ) . '<br />' .
 380                         Xml::radioLabel( wfMsgExt( 'sp-contributions-username', array( 'parsemag' ) ),
 381                                 'contribs' , 'user', 'user', $this->opts['contribs'] == 'user' ) . ' ' .
 382                         Html::input( 'target', $this->opts['target'], 'text', array(
 383                                 'size' => '20',
 384                                 'required' => ''
 385                         ) + ( $this->opts['target'] ? array() : array( 'autofocus' ) ) ) . ' '.
 386                         Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 387                                 Xml::label( wfMsg( 'namespace' ), 'namespace' ) . ' ' .
 388                                 Xml::namespaceSelector( $this->opts['namespace'], '' )
 389                         ) .
 390                         Xml::checkLabel( wfMsg( 'history-show-deleted' ),
 391                                 'deletedOnly', 'mw-show-deleted-only', $this->opts['deletedOnly'] ) . '<br />' .
 392                         Xml::tags( 'p', null, Xml::checkLabel( wfMsg( 'sp-contributions-toponly' ),
 393                                 'topOnly', 'mw-show-top-only', $this->opts['topOnly'] ) ) .
 394                         ( $tagFilter ? Xml::tags( 'p', null, implode( '&#160;', $tagFilter ) ) : '' ) .
 395                         Html::rawElement( 'p', array( 'style' => 'white-space: nowrap' ),
 396                                 Xml::dateMenu( $this->opts['year'], $this->opts['month'] ) . ' ' .
 397                                 Xml::submitButton( wfMsg( 'sp-contributions-submit' ) )
 398                         ) . ' ';
 399                 $explain = wfMsgExt( 'sp-contributions-explain', 'parseinline' );
 400                 if( !wfEmptyMsg( 'sp-contributions-explain' ) ) {
 401                         $f .= "<p id='mw-sp-contributions-explain'>{$explain}</p>";
 402                 }
 403                 $f .= Xml::closeElement('fieldset' ) .
 404                         Xml::closeElement( 'form' );
 405                 return $f;
 406         }
 407
 408         /**
 409          * Output a subscription feed listing recent edits to this page.
 410          * @param $type String
 411          */
 412         protected function feed( $type ) {
 413                 global $wgFeed, $wgFeedClasses, $wgFeedLimit, $wgOut;
 414
 415                 if( !$wgFeed ) {
 416                         $wgOut->addWikiMsg( 'feed-unavailable' );
 417                         return;
 418                 }
 419
 420                 if( !isset( $wgFeedClasses[$type] ) ) {
 421                         $wgOut->addWikiMsg( 'feed-invalid' );
 422                         return;
 423                 }
 424
 425                 $feed = new $wgFeedClasses[$type](
 426                         $this->feedTitle(),
 427                         wfMsgExt( 'tagline', 'parsemag' ),
 428                         $this->getTitle()->getFullUrl() . "/" . urlencode($this->opts['target'])
 429                 );
 430
 431                 // Already valid title
 432                 $nt = Title::makeTitleSafe( NS_USER, $this->opts['target'] );
 433                 $target = $this->opts['target'] == 'newbies' ? 'newbies' : $nt->getText();
 434
 435                 $pager = new ContribsPager( array(
 436                         'target' => $target,
 437                         'namespace' => $this->opts['namespace'],
 438                         'year' => $this->opts['year'],
 439                         'month' => $this->opts['month'],
 440                         'tagFilter' => $this->opts['tagFilter'],
 441                         'deletedOnly' => $this->opts['deletedOnly'],
 442                         'topOnly' => $this->opts['topOnly'],
 443                 ) );
 444
 445                 $pager->mLimit = min( $this->opts['limit'], $wgFeedLimit );
 446
 447                 $feed->outHeader();
 448                 if( $pager->getNumRows() > 0 ) {
 449                         foreach ( $pager->mResult as $row ) {
 450                                 $feed->outItem( $this->feedItem( $row ) );
 451                         }
 452                 }
 453                 $feed->outFooter();
 454         }
 455
 456         protected function feedTitle() {
 457                 global $wgLanguageCode, $wgSitename;
 458                 $page = SpecialPage::getPage( 'Contributions' );
 459                 $desc = $page->getDescription();
 460                 return "$wgSitename - $desc [$wgLanguageCode]";
 461         }
 462
 463         protected function feedItem( $row ) {
 464                 $title = Title::MakeTitle( intval( $row->page_namespace ), $row->page_title );
 465                 if( $title ) {
 466                         $date = $row->rev_timestamp;
 467                         $comments = $title->getTalkPage()->getFullURL();
 468                         $revision = Revision::newFromTitle( $title, $row->rev_id );
 469
 470                         return new FeedItem(
 471                                 $title->getPrefixedText(),
 472                                 $this->feedItemDesc( $revision ),
 473                                 $title->getFullURL(),
 474                                 $date,
 475                                 $this->feedItemAuthor( $revision ),
 476                                 $comments
 477                         );
 478                 } else {
 479                         return null;
 480                 }
 481         }
 482
 483         /**
 484          * @param $revision Revision
 485          * @return string
 486          */
 487         protected function feedItemAuthor( $revision ) {
 488                 return $revision->getUserText();
 489         }
 490
 491         /**
 492          * @param $revision Revision
 493          * @return string
 494          */
 495         protected function feedItemDesc( $revision ) {
 496                 if( $revision ) {
 497                         return '<p>' . htmlspecialchars( $revision->getUserText() ) . wfMsgForContent( 'colon-separator' ) .
 498                                 htmlspecialchars( FeedItem::stripComment( $revision->getComment() ) ) .
 499                                 "</p>\n<hr />\n<div>" .
 500                                 nl2br( htmlspecialchars( $revision->getText() ) ) . "</div>";
 501                 }
 502                 return '';
 503         }
 504 }
 505
 506 /**
 507  * Pager for Special:Contributions
 508  * @ingroup SpecialPage Pager
 509  */
 510 class ContribsPager extends ReverseChronologicalPager {
 511         public $mDefaultDirection = true;
 512         var $messages, $target;
 513         var $namespace = '', $mDb;
 514         var $preventClickjacking = false;
 515
 516         function __construct( $options ) {
 517                 parent::__construct();
 518
 519                 $msgs = array( 'uctop', 'diff', 'newarticle', 'rollbacklink', 'diff', 'hist', 'rev-delundel', 'pipe-separator' );
 520
 521                 foreach( $msgs as $msg ) {
 522                         $this->messages[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
 523                 }
 524
 525                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 526                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 527                 $this->tagFilter = isset( $options['tagFilter'] ) ? $options['tagFilter'] : false;
 528
 529                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 530                 $this->topOnly = !empty( $options['topOnly'] );
 531
 532                 $year = isset( $options['year'] ) ? $options['year'] : false;
 533                 $month = isset( $options['month'] ) ? $options['month'] : false;
 534                 $this->getDateCond( $year, $month );
 535
 536                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 537         }
 538
 539         function getDefaultQuery() {
 540                 $query = parent::getDefaultQuery();
 541                 $query['target'] = $this->target;
 542                 return $query;
 543         }
 544
 545         function getQueryInfo() {
 546                 global $wgUser;
 547                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 548
 549                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 550                 // Paranoia: avoid brute force searches (bug 17342)
 551                 if( !$wgUser->isAllowed( 'deletedhistory' ) ) {
 552                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::DELETED_USER) . ' = 0';
 553                 } else if( !$wgUser->isAllowed( 'suppressrevision' ) ) {
 554                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::SUPPRESSED_USER) .
 555                                 ' != ' . Revision::SUPPRESSED_USER;
 556                 }
 557                 $join_cond['page'] = array( 'INNER JOIN', 'page_id=rev_page' );
 558
 559                 $queryInfo = array(
 560                         'tables' => $tables,
 561                         'fields' => array(
 562                                 'page_namespace', 'page_title', 'page_is_new', 'page_latest', 'page_is_redirect',
 563                                 'page_len','rev_id', 'rev_page', 'rev_text_id', 'rev_timestamp', 'rev_comment',
 564                                 'rev_minor_edit', 'rev_user', 'rev_user_text', 'rev_parent_id', 'rev_deleted'
 565                         ),
 566                         'conds' => $conds,
 567                         'options' => array( 'USE INDEX' => array('revision' => $index) ),
 568                         'join_conds' => $join_cond
 569                 );
 570
 571                 ChangeTags::modifyDisplayQuery(
 572                         $queryInfo['tables'],
 573                         $queryInfo['fields'],
 574                         $queryInfo['conds'],
 575                         $queryInfo['join_conds'],
 576                         $queryInfo['options'],
 577                         $this->tagFilter
 578                 );
 579
 580                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 581                 return $queryInfo;
 582         }
 583
 584         function getUserCond() {
 585                 $condition = array();
 586                 $join_conds = array();
 587                 if( $this->target == 'newbies' ) {
 588                         $tables = array( 'user_groups', 'page', 'revision' );
 589                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 590                         $condition[] = 'rev_user >' . (int)($max - $max / 100);
 591                         $condition[] = 'ug_group IS NULL';
 592                         $index = 'user_timestamp';
 593                         # FIXME: other groups may have 'bot' rights
 594                         $join_conds['user_groups'] = array( 'LEFT JOIN', "ug_user = rev_user AND ug_group = 'bot'" );
 595                 } else {
 596                         $tables = array( 'page', 'revision' );
 597                         $condition['rev_user_text'] = $this->target;
 598                         $index = 'usertext_timestamp';
 599                 }
 600                 if( $this->deletedOnly ) {
 601                         $condition[] = "rev_deleted != '0'";
 602                 }
 603                 if( $this->topOnly ) {
 604                         $condition[] = "rev_id = page_latest";
 605                 }
 606                 return array( $tables, $index, $condition, $join_conds );
 607         }
 608
 609         function getNamespaceCond() {
 610                 if( $this->namespace !== '' ) {
 611                         return array( 'page_namespace' => (int)$this->namespace );
 612                 } else {
 613                         return array();
 614                 }
 615         }
 616
 617         function getIndexField() {
 618                 return 'rev_timestamp';
 619         }
 620
 621         function getStartBody() {
 622                 return "<ul>\n";
 623         }
 624
 625         function getEndBody() {
 626                 return "</ul>\n";
 627         }
 628
 629         /**
 630          * Generates each row in the contributions list.
 631          *
 632          * Contributions which are marked "top" are currently on top of the history.
 633          * For these contributions, a [rollback] link is shown for users with roll-
 634          * back privileges. The rollback link restores the most recent version that
 635          * was not written by the target user.
 636          *
 637          * @todo This would probably look a lot nicer in a table.
 638          */
 639         function formatRow( $row ) {
 640                 global $wgUser, $wgLang, $wgContLang;
 641                 wfProfileIn( __METHOD__ );
 642
 643                 $sk = $this->getSkin();
 644                 $rev = new Revision( $row );
 645                 $classes = array();
 646
 647                 $page = Title::newFromRow( $row );
 648                 $link = $sk->link(
 649                         $page,
 650                         htmlspecialchars( $page->getPrefixedText() ),
 651                         array(),
 652                         $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 653                 );
 654                 # Mark current revisions
 655                 $topmarktext = '';
 656                 if( $row->rev_id == $row->page_latest ) {
 657                         $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 658                         # Add rollback link
 659                         if( !$row->page_is_new && $page->quickUserCan( 'rollback' )
 660                                 && $page->quickUserCan( 'edit' ) )
 661                         {
 662                                 $this->preventClickjacking();
 663                                 $topmarktext .= ' '.$sk->generateRollback( $rev );
 664                         }
 665                 }
 666                 # Is there a visible previous revision?
 667                 if( $rev->userCan( Revision::DELETED_TEXT ) && $rev->getParentId() !== 0 ) {
 668                         $difftext = $sk->linkKnown(
 669                                 $page,
 670                                 $this->messages['diff'],
 671                                 array(),
 672                                 array(
 673                                         'diff' => 'prev',
 674                                         'oldid' => $row->rev_id
 675                                 )
 676                         );
 677                 } else {
 678                         $difftext = $this->messages['diff'];
 679                 }
 680                 $histlink = $sk->linkKnown(
 681                         $page,
 682                         $this->messages['hist'],
 683                         array(),
 684                         array( 'action' => 'history' )
 685                 );
 686
 687                 $comment = $wgContLang->getDirMark() . $sk->revComment( $rev, false, true );
 688                 $date = $wgLang->timeanddate( wfTimestamp( TS_MW, $row->rev_timestamp ), true );
 689                 if( $rev->userCan( Revision::DELETED_TEXT ) ) {
 690                         $d = $sk->linkKnown(
 691                                 $page,
 692                                 htmlspecialchars($date),
 693                                 array(),
 694                                 array( 'oldid' => intval( $row->rev_id ) )
 695                         );
 696                 } else {
 697                         $d = htmlspecialchars( $date );
 698                 }
 699                 if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 700                         $d = '<span class="history-deleted">' . $d . '</span>';
 701                 }
 702
 703                 if( $this->target == 'newbies' ) {
 704                         $userlink = ' . . ' . $sk->userLink( $row->rev_user, $row->rev_user_text );
 705                         $userlink .= ' ' . wfMsg( 'parentheses', $sk->userTalkLink( $row->rev_user, $row->rev_user_text ) ) . ' ';
 706                 } else {
 707                         $userlink = '';
 708                 }
 709
 710                 if( $rev->getParentId() === 0 ) {
 711                         $nflag = ChangesList::flag( 'newpage' );
 712                 } else {
 713                         $nflag = '';
 714                 }
 715
 716                 if( $rev->isMinor() ) {
 717                         $mflag = ChangesList::flag( 'minor' );
 718                 } else {
 719                         $mflag = '';
 720                 }
 721
 722                 // Don't show useless link to people who cannot hide revisions
 723                 $canHide = $wgUser->isAllowed( 'deleterevision' );
 724                 if( $canHide || ($rev->getVisibility() && $wgUser->isAllowed('deletedhistory')) ) {
 725                         if( !$rev->userCan( Revision::DELETED_RESTRICTED ) ) {
 726                                 $del = $this->mSkin->revDeleteLinkDisabled( $canHide ); // revision was hidden from sysops
 727                         } else {
 728                                 $query = array(
 729                                         'type'   => 'revision',
 730                                         'target' => $page->getPrefixedDbkey(),
 731                                         'ids'    => $rev->getId()
 732                                 );
 733                                 $del = $this->mSkin->revDeleteLink( $query,
 734                                         $rev->isDeleted( Revision::DELETED_RESTRICTED ), $canHide );
 735                         }
 736                         $del .= ' ';
 737                 } else {
 738                         $del = '';
 739                 }
 740
 741                 $diffHistLinks = '(' . $difftext . $this->messages['pipe-separator'] . $histlink . ')';
 742                 $ret = "{$del}{$d} {$diffHistLinks} {$nflag}{$mflag} {$link}{$userlink} {$comment} {$topmarktext}";
 743
 744                 # Denote if username is redacted for this edit
 745                 if( $rev->isDeleted( Revision::DELETED_USER ) ) {
 746                         $ret .= " <strong>" . wfMsgHtml('rev-deleted-user-contribs') . "</strong>";
 747                 }
 748
 749                 # Tags, if any.
 750                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $row->ts_tags, 'contributions' );
 751                 $classes = array_merge( $classes, $newClasses );
 752                 $ret .= " $tagSummary";
 753
 754                 // Let extensions add data
 755                 wfRunHooks( 'ContributionsLineEnding', array( &$this, &$ret, $row ) );
 756
 757                 $classes = implode( ' ', $classes );
 758                 $ret = "<li class=\"$classes\">$ret</li>\n";
 759                 wfProfileOut( __METHOD__ );
 760                 return $ret;
 761         }
 762
 763         /**
 764          * Get the Database object in use
 765          *
 766          * @return Database
 767          */
 768         public function getDatabase() {
 769                 return $this->mDb;
 770         }
 771
 772         /**
 773          * Overwrite Pager function and return a helpful comment
 774          */
 775         function getSqlComment() {
 776                 if ( $this->namespace || $this->deletedOnly ) {
 777                         return 'contributions page filtered for namespace or RevisionDeleted edits'; // potentially slow, see CR r58153
 778                 } else {
 779                         return 'contributions page unfiltered';
 780                 }
 781         }
 782
 783         protected function preventClickjacking() {
 784                 $this->preventClickjacking = true;
 785         }
 786
 787         public function getPreventClickjacking() {
 788                 return $this->preventClickjacking;
 789         }
 790 }