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