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                 $this->setHeaders();
  40                 $this->outputHeader();
  41                 $out = $this->getOutput();
  42                 $out->addModuleStyles( 'mediawiki.special' );
  43
  44                 $this->opts = array();
  45                 $request = $this->getRequest();
  46
  47                 if( $par == 'newbies' ) {
  48                         $target = 'newbies';
  49                         $this->opts['contribs'] = 'newbie';
  50                 } elseif( $par !== null ) {
  51                         $target = $par;
  52                 } else {
  53                         $target = $request->getVal( 'target' );
  54                 }
  55
  56                 // check for radiobox
  57                 if( $request->getVal( 'contribs' ) == 'newbie' ) {
  58                         $target = 'newbies';
  59                         $this->opts['contribs'] = 'newbie';
  60                 } else {
  61                         $this->opts['contribs'] = 'user';
  62                 }
  63
  64                 $this->opts['deletedOnly'] = $request->getBool( 'deletedOnly' );
  65
  66                 if( !strlen( $target ) ) {
  67                         $out->addHTML( $this->getForm() );
  68                         return;
  69                 }
  70
  71                 $user = $this->getUser();
  72
  73                 $this->opts['limit'] = $request->getInt( 'limit', $user->getOption('rclimit') );
  74                 $this->opts['target'] = $target;
  75                 $this->opts['topOnly'] = $request->getBool( 'topOnly' );
  76
  77                 $userObj = User::newFromName( $target, false );
  78                 if( !$userObj ) {
  79                         $out->addHTML( $this->getForm() );
  80                         return;
  81                 }
  82                 $nt = $userObj->getUserPage();
  83                 $id = $userObj->getID();
  84
  85                 if( $this->opts['contribs'] != 'newbie' ) {
  86                         $target = $nt->getText();
  87                         $out->addSubtitle( $this->contributionsSub( $userObj ) );
  88                         $out->setHTMLTitle( $this->msg( 'pagetitle', wfMsgExt( 'contributions-title', array( 'parsemag' ), $target ) ) );
  89                         $this->getSkin()->setRelevantUser( $userObj );
  90                 } else {
  91                         $out->addSubtitle( $this->msg( 'sp-contributions-newbies-sub') );
  92                         $out->setHTMLTitle( $this->msg( 'pagetitle', wfMsg( 'sp-contributions-newbies-title' ) ) );
  93                 }
  94
  95                 if( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
  96                         $this->opts['namespace'] = intval( $ns );
  97                 } else {
  98                         $this->opts['namespace'] = '';
  99                 }
 100
 101                 $this->opts['associated'] = $request->getBool( 'associated' );
 102
 103                 $this->opts['nsInvert'] = (bool) $request->getVal( 'nsInvert' );
 104
 105                 $this->opts['tagfilter'] = (string) $request->getVal( 'tagfilter' );
 106
 107                 // Allows reverts to have the bot flag in recent changes. It is just here to
 108                 // be passed in the form at the top of the page
 109                 if( $user->isAllowed( 'markbotedits' ) && $request->getBool( 'bot' ) ) {
 110                         $this->opts['bot'] = '1';
 111                 }
 112
 113                 $skip = $request->getText( 'offset' ) || $request->getText( 'dir' ) == 'prev';
 114                 # Offset overrides year/month selection
 115                 if( $skip ) {
 116                         $this->opts['year'] = '';
 117                         $this->opts['month'] = '';
 118                 } else {
 119                         $this->opts['year'] = $request->getIntOrNull( 'year' );
 120                         $this->opts['month'] = $request->getIntOrNull( 'month' );
 121                 }
 122
 123                 $feedType = $request->getVal( 'feed' );
 124                 if( $feedType ) {
 125                         // Maintain some level of backwards compatability
 126                         // If people request feeds using the old parameters, redirect to API
 127                         $apiParams = array(
 128                                 'action' => 'feedcontributions',
 129                                 'feedformat' => $feedType,
 130                                 'user' => $target,
 131                         );
 132                         if ( $this->opts['topOnly'] ) {
 133                                 $apiParams['toponly'] = true;
 134                         }
 135                         if ( $this->opts['deletedOnly'] ) {
 136                                 $apiParams['deletedonly'] = true;
 137                         }
 138                         if ( $this->opts['tagfilter'] !== '' ) {
 139                                 $apiParams['tagfilter'] = $this->opts['tagfilter'];
 140                         }
 141                         if ( $this->opts['namespace'] !== '' ) {
 142                                 $apiParams['namespace'] = $this->opts['namespace'];
 143                         }
 144                         if ( $this->opts['year'] !== null ) {
 145                                 $apiParams['year'] = $this->opts['year'];
 146                         }
 147                         if ( $this->opts['month'] !== null ) {
 148                                 $apiParams['month'] = $this->opts['month'];
 149                         }
 150
 151                         $url = wfScript( 'api' ) . '?' . wfArrayToCGI( $apiParams );
 152
 153                         $out->redirect( $url, '301' );
 154                         return;
 155                 }
 156
 157                 // Add RSS/atom links
 158                 $this->addFeedLinks( array( 'action' => 'feedcontributions', 'user' => $target ) );
 159
 160                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 161
 162                         $out->addHTML( $this->getForm() );
 163
 164                         $pager = new ContribsPager( array(
 165                                 'target' => $target,
 166                                 'contribs' => $this->opts['contribs'],
 167                                 'namespace' => $this->opts['namespace'],
 168                                 'year' => $this->opts['year'],
 169                                 'month' => $this->opts['month'],
 170                                 'deletedOnly' => $this->opts['deletedOnly'],
 171                                 'topOnly' => $this->opts['topOnly'],
 172                                 'nsInvert' => $this->opts['nsInvert'],
 173                                 'associated' => $this->opts['associated'],
 174                         ) );
 175                         if( !$pager->getNumRows() ) {
 176                                 $out->addWikiMsg( 'nocontribs', $target );
 177                         } else {
 178                                 # Show a message about slave lag, if applicable
 179                                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 180                                 if( $lag > 0 )
 181                                         $out->showLagWarning( $lag );
 182
 183                                 $out->addHTML(
 184                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 185                                         $pager->getBody() .
 186                                         '<p>' . $pager->getNavigationBar() . '</p>'
 187                                 );
 188                         }
 189                         $out->preventClickjacking( $pager->getPreventClickjacking() );
 190
 191                         # Show the appropriate "footer" message - WHOIS tools, etc.
 192                         if( $this->opts['contribs'] != 'newbie' ) {
 193                                 $message = 'sp-contributions-footer';
 194                                 if ( IP::isIPAddress( $target ) ) {
 195                                         $message = 'sp-contributions-footer-anon';
 196                                 } else {
 197                                         if ( $userObj->isAnon() ) {
 198                                                 // No message for non-existing users
 199                                                 return;
 200                                         }
 201                                 }
 202
 203                                 if( !wfMessage( $message, $target )->isDisabled() ) {
 204                                         $out->wrapWikiMsg(
 205                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 206                                                 array( $message, $target ) );
 207                                 }
 208                         }
 209                 }
 210         }
 211
 212         /**
 213          * Generates the subheading with links
 214          * @param $userObj User object for the target
 215          * @return String: appropriately-escaped HTML to be output literally
 216          * @todo FIXME: Almost the same as getSubTitle in SpecialDeletedContributions.php. Could be combined.
 217          */
 218         protected function contributionsSub( $userObj ) {
 219                 if ( $userObj->isAnon() ) {
 220                         $user = htmlspecialchars( $userObj->getName() );
 221                 } else {
 222                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 223                 }
 224                 $nt = $userObj->getUserPage();
 225                 $talk = $userObj->getTalkPage();
 226                 if( $talk ) {
 227                         $tools = self::getUserLinks( $nt, $talk, $userObj, $this->getUser() );
 228                         $links = $this->getLanguage()->pipeList( $tools );
 229
 230                         // Show a note if the user is blocked and display the last block log entry.
 231                         if ( $userObj->isBlocked() ) {
 232                                 $out = $this->getOutput(); // showLogExtract() wants first parameter by reference
 233                                 LogEventsList::showLogExtract(
 234                                         $out,
 235                                         'block',
 236                                         $nt,
 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                                                         $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 246                                                 ),
 247                                                 'offset' => '' # don't use WebRequest 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                 $oldMsg = $this->msg( 'contribsub' );
 258                 if ( $oldMsg->exists() ) {
 259                         return $oldMsg->rawParams( "$user ($links)" );
 260                 } else {
 261                         return $this->msg( 'contribsub2' )->rawParams( $user, $links );
 262                 }
 263         }
 264
 265         /**
 266          * Links to different places.
 267          * @param $userpage Title: Target user page
 268          * @param $talkpage Title: Talk page
 269          * @param $target User: Target user object
 270          * @param $subject User: The viewing user ($wgUser might be still checked in some cases)
 271          */
 272         public static function getUserLinks( Title $userpage, Title $talkpage, User $target, User $subject ) {
 273
 274                 $id = $target->getId();
 275                 $username = $target->getName();
 276
 277                 $tools[] = Linker::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[] = Linker::linkKnown( # Change block link
 283                                                 SpecialPage::getTitleFor( 'Block', $username ),
 284                                                 wfMsgHtml( 'change-blocklink' )
 285                                         );
 286                                         $tools[] = Linker::linkKnown( # Unblock link
 287                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 288                                                 wfMsgHtml( 'unblocklink' )
 289                                         );
 290                                 } else { # User is not blocked
 291                                         $tools[] = Linker::linkKnown( # Block link
 292                                                 SpecialPage::getTitleFor( 'Block', $username ),
 293                                                 wfMsgHtml( 'blocklink' )
 294                                         );
 295                                 }
 296                         }
 297                         # Block log link
 298                         $tools[] = Linker::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[] = Linker::linkKnown(
 309                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 310                         wfMsgHtml( 'sp-contributions-uploads' )
 311                 );
 312
 313                 # Other logs link
 314                 $tools[] = Linker::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[] = Linker::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                 $userrightsPage->getContext()->setUser( $subject );
 330                 if( $id !== null && $userrightsPage->userCanChangeRights( $target ) ) {
 331                         $tools[] = Linker::linkKnown(
 332                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 333                                 wfMsgHtml( 'sp-contributions-userrights' )
 334                         );
 335                 }
 336
 337                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 338                 return $tools;
 339         }
 340
 341         /**
 342          * Generates the namespace selector form with hidden attributes.
 343          * @return String: HTML fragment
 344          */
 345         protected function getForm() {
 346                 global $wgScript;
 347
 348                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 349                 if( !isset( $this->opts['target'] ) ) {
 350                         $this->opts['target'] = '';
 351                 } else {
 352                         $this->opts['target'] = str_replace( '_' , ' ' , $this->opts['target'] );
 353                 }
 354
 355                 if( !isset( $this->opts['namespace'] ) ) {
 356                         $this->opts['namespace'] = '';
 357                 }
 358
 359                 if( !isset( $this->opts['nsInvert'] ) ) {
 360                         $this->opts['nsInvert'] = '';
 361                 }
 362
 363                 if( !isset( $this->opts['associated'] ) ) {
 364                         $this->opts['associated'] = false;
 365                 }
 366
 367                 if( !isset( $this->opts['contribs'] ) ) {
 368                         $this->opts['contribs'] = 'user';
 369                 }
 370
 371                 if( !isset( $this->opts['year'] ) ) {
 372                         $this->opts['year'] = '';
 373                 }
 374
 375                 if( !isset( $this->opts['month'] ) ) {
 376                         $this->opts['month'] = '';
 377                 }
 378
 379                 if( $this->opts['contribs'] == 'newbie' ) {
 380                         $this->opts['target'] = '';
 381                 }
 382
 383                 if( !isset( $this->opts['tagfilter'] ) ) {
 384                         $this->opts['tagfilter'] = '';
 385                 }
 386
 387                 if( !isset( $this->opts['topOnly'] ) ) {
 388                         $this->opts['topOnly'] = false;
 389                 }
 390
 391                 $form = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'class' => 'mw-contributions-form' ) );
 392
 393                 # Add hidden params for tracking except for parameters in $skipParameters
 394                 $skipParameters = array( 'namespace', 'nsInvert', 'deletedOnly', 'target', 'contribs', 'year', 'month', 'topOnly', 'associated' );
 395                 foreach ( $this->opts as $name => $value ) {
 396                         if( in_array( $name, $skipParameters ) ) {
 397                                 continue;
 398                         }
 399                         $form .= "\t" . Html::hidden( $name, $value ) . "\n";
 400                 }
 401
 402                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagfilter'] );
 403
 404                 if ($tagFilter) {
 405                         $filterSelection =
 406                                 Xml::tags( 'td', array( 'class' => 'mw-label' ), array_shift( $tagFilter ) ) .
 407                                 Xml::tags( 'td', array( 'class' => 'mw-input' ), implode( '&#160', $tagFilter ) );
 408                 } else {
 409                         $filterSelection = Xml::tags( 'td', array( 'colspan' => 2 ), '' );
 410                 }
 411
 412                 $targetSelection = Xml::tags( 'td', array( 'colspan' => 2 ),
 413                         Xml::radioLabel(
 414                                 wfMsgExt( 'sp-contributions-newbies', array( 'parsemag' ) ),
 415                                 'contribs',
 416                                 'newbie' ,
 417                                 'newbie',
 418                                 $this->opts['contribs'] == 'newbie',
 419                                 array( 'class' => 'mw-input' )
 420                         ) . '<br />' .
 421                         Xml::radioLabel(
 422                                 wfMsgExt( 'sp-contributions-username', array( 'parsemag' ) ),
 423                                 'contribs',
 424                                 'user',
 425                                 'user',
 426                                 $this->opts['contribs'] == 'user',
 427                                 array( 'class' => 'mw-input' )
 428                         ) . ' ' .
 429                         Html::input(
 430                                 'target',
 431                                 $this->opts['target'],
 432                                 'text',
 433                                 array( 'size' => '20', 'required' => '', 'class' => 'mw-input' ) +
 434                                         ( $this->opts['target'] ? array() : array( 'autofocus' )
 435                                 )
 436                         ) . ' '
 437                 ) ;
 438
 439                 $namespaceSelection =
 440                         Xml::tags( 'td', array( 'class' => 'mw-label' ),
 441                                 Xml::label(
 442                                         wfMsg( 'namespace' ),
 443                                         'namespace',
 444                                         ''
 445                                 )
 446                         ) .
 447                         Xml::tags( 'td', null,
 448                                 Xml::namespaceSelector( $this->opts['namespace'], '' ) . '&#160;' .
 449                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 450                                         Xml::checkLabel(
 451                                                 wfMsg('invert'),
 452                                                 'nsInvert',
 453                                                 'nsInvert',
 454                                                 $this->opts['nsInvert'],
 455                                                 array( 'title' => wfMsg( 'tooltip-invert' ), 'class' => 'mw-input' )
 456                                         ) . '&#160;'
 457                                 ) .
 458                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 459                                         Xml::checkLabel(
 460                                                 wfMsg('namespace_association'),
 461                                                 'associated',
 462                                                 'associated',
 463                                                 $this->opts['associated'],
 464                                                 array( 'title' => wfMsg( 'tooltip-namespace_association' ), 'class' => 'mw-input' )
 465                                         ) . '&#160;'
 466                                 )
 467                         ) ;
 468
 469                 $extraOptions = Xml::tags( 'td', array( 'colspan' => 2 ),
 470                         Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 471                                 Xml::checkLabel(
 472                                         wfMsg( 'history-show-deleted' ),
 473                                         'deletedOnly',
 474                                         'mw-show-deleted-only',
 475                                         $this->opts['deletedOnly'],
 476                                         array( 'class' => 'mw-input' )
 477                                 )
 478                         ) .
 479                         Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 480                                 Xml::checkLabel(
 481                                         wfMsg( 'sp-contributions-toponly' ),
 482                                         'topOnly',
 483                                         'mw-show-top-only',
 484                                         $this->opts['topOnly'],
 485                                         array( 'class' => 'mw-input' )
 486                                 )
 487                         )
 488                 ) ;
 489
 490                 $dateSelectionAndSubmit = Xml::tags( 'td', array( 'colspan' => 2 ),
 491                         Xml::dateMenu(
 492                                 $this->opts['year'],
 493                                 $this->opts['month']
 494                         ) . ' ' .
 495                         Xml::submitButton(
 496                                 wfMsg( 'sp-contributions-submit' ),
 497                                 array( 'class' => 'mw-submit' )
 498                         )
 499                 ) ;
 500
 501                 $form .=
 502                         Xml::fieldset( wfMsg( 'sp-contributions-search' ) ) .
 503                         Xml::openElement( 'table', array( 'class' => 'mw-contributions-table' ) ) .
 504                                 Xml::openElement( 'tr' ) .
 505                                         $targetSelection .
 506                                 Xml::closeElement( 'tr' ) .
 507                                 Xml::openElement( 'tr' ) .
 508                                         $namespaceSelection .
 509                                 Xml::closeElement( 'tr' ) .
 510                                 Xml::openElement( 'tr' ) .
 511                                         $filterSelection .
 512                                 Xml::closeElement( 'tr' ) .
 513                                 Xml::openElement( 'tr' ) .
 514                                         $extraOptions .
 515                                 Xml::closeElement( 'tr' ) .
 516                                 Xml::openElement( 'tr' ) .
 517                                         $dateSelectionAndSubmit .
 518                                 Xml::closeElement( 'tr' ) .
 519                         Xml::closeElement( 'table' );
 520
 521                 $explain = wfMessage( 'sp-contributions-explain' );
 522                 if ( $explain->exists() ) {
 523                         $form .= "<p id='mw-sp-contributions-explain'>{$explain}</p>";
 524                 }
 525                 $form .= Xml::closeElement('fieldset' ) .
 526                         Xml::closeElement( 'form' );
 527                 return $form;
 528         }
 529 }
 530
 531 /**
 532  * Pager for Special:Contributions
 533  * @ingroup SpecialPage Pager
 534  */
 535 class ContribsPager extends ReverseChronologicalPager {
 536         public $mDefaultDirection = true;
 537         var $messages, $target;
 538         var $namespace = '', $mDb;
 539         var $preventClickjacking = false;
 540
 541         function __construct( $options ) {
 542                 parent::__construct();
 543
 544                 $msgs = array( 'uctop', 'diff', 'newarticle', 'rollbacklink', 'diff', 'hist', 'rev-delundel', 'pipe-separator' );
 545
 546                 foreach( $msgs as $msg ) {
 547                         $this->messages[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
 548                 }
 549
 550                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 551                 $this->contribs = isset( $options['contribs'] ) ? $options['contribs'] : 'users';
 552                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 553                 $this->tagFilter = isset( $options['tagfilter'] ) ? $options['tagfilter'] : false;
 554                 $this->nsInvert = isset( $options['nsInvert'] ) ? $options['nsInvert'] : false;
 555                 $this->associated = isset( $options['associated'] ) ? $options['associated'] : false;
 556
 557                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 558                 $this->topOnly = !empty( $options['topOnly'] );
 559
 560                 $year = isset( $options['year'] ) ? $options['year'] : false;
 561                 $month = isset( $options['month'] ) ? $options['month'] : false;
 562                 $this->getDateCond( $year, $month );
 563
 564                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 565         }
 566
 567         function getDefaultQuery() {
 568                 $query = parent::getDefaultQuery();
 569                 $query['target'] = $this->target;
 570                 return $query;
 571         }
 572
 573         function getQueryInfo() {
 574                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 575
 576                 $user = $this->getUser();
 577                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 578
 579                 // Paranoia: avoid brute force searches (bug 17342)
 580                 if( !$user->isAllowed( 'deletedhistory' ) ) {
 581                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::DELETED_USER) . ' = 0';
 582                 } elseif( !$user->isAllowed( 'suppressrevision' ) ) {
 583                         $conds[] = $this->mDb->bitAnd('rev_deleted',Revision::SUPPRESSED_USER) .
 584                                 ' != ' . Revision::SUPPRESSED_USER;
 585                 }
 586
 587                 # Don't include orphaned revisions
 588                 $join_cond['page'] = Revision::pageJoinCond();
 589                 # Get the current user name for accounts
 590                 $join_cond['user'] = Revision::userJoinCond();
 591
 592                 $queryInfo = array(
 593                         'tables'     => $tables,
 594                         'fields'     => array_merge(
 595                                 Revision::selectFields(),
 596                                 Revision::selectUserFields(),
 597                                 array( 'page_namespace', 'page_title', 'page_is_new',
 598                                         'page_latest', 'page_is_redirect', 'page_len' )
 599                         ),
 600                         'conds'      => $conds,
 601                         'options'    => array( 'USE INDEX' => array( 'revision' => $index ) ),
 602                         'join_conds' => $join_cond
 603                 );
 604
 605                 ChangeTags::modifyDisplayQuery(
 606                         $queryInfo['tables'],
 607                         $queryInfo['fields'],
 608                         $queryInfo['conds'],
 609                         $queryInfo['join_conds'],
 610                         $queryInfo['options'],
 611                         $this->tagFilter
 612                 );
 613
 614                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 615                 return $queryInfo;
 616         }
 617
 618         function getUserCond() {
 619                 $condition = array();
 620                 $join_conds = array();
 621                 $tables = array( 'revision', 'page', 'user' );
 622                 if( $this->contribs == 'newbie' ) {
 623                         $tables[] = 'user_groups';
 624                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 625                         $condition[] = 'rev_user >' . (int)($max - $max / 100);
 626                         $condition[] = 'ug_group IS NULL';
 627                         $index = 'user_timestamp';
 628                         # @todo FIXME: Other groups may have 'bot' rights
 629                         $join_conds['user_groups'] = array( 'LEFT JOIN', "ug_user = rev_user AND ug_group = 'bot'" );
 630                 } else {
 631                         if ( IP::isIPAddress( $this->target ) ) {
 632                                 $condition['rev_user_text'] = $this->target;
 633                                 $index = 'usertext_timestamp';
 634                         } else {
 635                                 $condition['rev_user'] = User::idFromName( $this->target );
 636                                 $index = 'user_timestamp';
 637                         }
 638                 }
 639                 if( $this->deletedOnly ) {
 640                         $condition[] = "rev_deleted != '0'";
 641                 }
 642                 if( $this->topOnly ) {
 643                         $condition[] = "rev_id = page_latest";
 644                 }
 645                 return array( $tables, $index, $condition, $join_conds );
 646         }
 647
 648         function getNamespaceCond() {
 649                 if( $this->namespace !== '' ) {
 650                         $selectedNS = $this->mDb->addQuotes( $this->namespace );
 651                         $eq_op = $this->nsInvert ? '!=' : '=';
 652                         $bool_op = $this->nsInvert ? 'AND' : 'OR';
 653
 654                         if( !$this->associated ) {
 655                                 return array( "page_namespace $eq_op $selectedNS" );
 656                         } else {
 657                                 $associatedNS = $this->mDb->addQuotes (
 658                                         MWNamespace::getAssociated( $this->namespace )
 659                                 );
 660                                 return array(
 661                                         "page_namespace $eq_op $selectedNS " .
 662                                         $bool_op .
 663                                         " page_namespace $eq_op $associatedNS"
 664                                 );
 665                         }
 666
 667                 } else {
 668                         return array();
 669                 }
 670         }
 671
 672         function getIndexField() {
 673                 return 'rev_timestamp';
 674         }
 675
 676         function doBatchLookups() {
 677                 $this->mResult->rewind();
 678                 $revIds = array();
 679                 foreach ( $this->mResult as $row ) {
 680                         $revIds[] = $row->rev_parent_id;
 681                 }
 682                 $this->mParentLens = $this->getParentLengths( $revIds );
 683                 $this->mResult->rewind(); // reset
 684
 685                 if ( $this->contribs === 'newbie' ) { // multiple users
 686                         # Do a link batch query
 687                         $this->mResult->seek( 0 );
 688                         $batch = new LinkBatch();
 689                         # Give some pointers to make (last) links
 690                         foreach ( $this->mResult as $row ) {
 691                                 $batch->addObj( Title::makeTitleSafe( NS_USER, $row->user_name ) );
 692                                 $batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->user_name ) );
 693                         }
 694                         $batch->execute();
 695                         $this->mResult->seek( 0 );
 696                 }
 697         }
 698
 699         /**
 700          * Do a batched query to get the parent revision lengths
 701          */
 702         private function getParentLengths( array $revIds ) {
 703                 $revLens = array();
 704                 if ( !$revIds ) {
 705                         return $revLens; // empty
 706                 }
 707                 wfProfileIn( __METHOD__ );
 708                 $res = $this->getDatabase()->select( 'revision',
 709                         array( 'rev_id', 'rev_len' ),
 710                         array( 'rev_id' => $revIds ),
 711                         __METHOD__ );
 712                 foreach( $res as $row ) {
 713                         $revLens[$row->rev_id] = $row->rev_len;
 714                 }
 715                 wfProfileOut( __METHOD__ );
 716                 return $revLens;
 717         }
 718
 719         function getStartBody() {
 720                 return "<ul>\n";
 721         }
 722
 723         function getEndBody() {
 724                 return "</ul>\n";
 725         }
 726
 727         /**
 728          * Generates each row in the contributions list.
 729          *
 730          * Contributions which are marked "top" are currently on top of the history.
 731          * For these contributions, a [rollback] link is shown for users with roll-
 732          * back privileges. The rollback link restores the most recent version that
 733          * was not written by the target user.
 734          *
 735          * @todo This would probably look a lot nicer in a table.
 736          */
 737         function formatRow( $row ) {
 738                 wfProfileIn( __METHOD__ );
 739
 740                 $rev = new Revision( $row );
 741                 $classes = array();
 742
 743                 $page = Title::newFromRow( $row );
 744                 $link = Linker::link(
 745                         $page,
 746                         htmlspecialchars( $page->getPrefixedText() ),
 747                         array(),
 748                         $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 749                 );
 750                 # Mark current revisions
 751                 $topmarktext = '';
 752                 if( $row->rev_id == $row->page_latest ) {
 753                         $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 754                         # Add rollback link
 755                         if( !$row->page_is_new && $page->quickUserCan( 'rollback' )
 756                                 && $page->quickUserCan( 'edit' ) )
 757                         {
 758                                 $this->preventClickjacking();
 759                                 $topmarktext .= ' '.Linker::generateRollback( $rev );
 760                         }
 761                 }
 762                 $user = $this->getUser();
 763                 # Is there a visible previous revision?
 764                 if( $rev->userCan( Revision::DELETED_TEXT, $user ) && $rev->getParentId() !== 0 ) {
 765                         $difftext = Linker::linkKnown(
 766                                 $page,
 767                                 $this->messages['diff'],
 768                                 array(),
 769                                 array(
 770                                         'diff' => 'prev',
 771                                         'oldid' => $row->rev_id
 772                                 )
 773                         );
 774                 } else {
 775                         $difftext = $this->messages['diff'];
 776                 }
 777                 $histlink = Linker::linkKnown(
 778                         $page,
 779                         $this->messages['hist'],
 780                         array(),
 781                         array( 'action' => 'history' )
 782                 );
 783
 784                 if ( isset( $this->mParentLens[$row->rev_parent_id] ) ) {
 785                         $chardiff = ' . . ' . ChangesList::showCharacterDifference(
 786                                 $this->mParentLens[$row->rev_parent_id], $row->rev_len ) . ' . . ';
 787                 } else {
 788                         $chardiff = ' ';
 789                 }
 790
 791                 $comment = $this->getLanguage()->getDirMark() . Linker::revComment( $rev, false, true );
 792                 $date = $this->getLanguage()->timeanddate( wfTimestamp( TS_MW, $row->rev_timestamp ), true );
 793                 if( $rev->userCan( Revision::DELETED_TEXT, $user ) ) {
 794                         $d = Linker::linkKnown(
 795                                 $page,
 796                                 htmlspecialchars($date),
 797                                 array(),
 798                                 array( 'oldid' => intval( $row->rev_id ) )
 799                         );
 800                 } else {
 801                         $d = htmlspecialchars( $date );
 802                 }
 803                 if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 804                         $d = '<span class="history-deleted">' . $d . '</span>';
 805                 }
 806
 807                 # Show user names for /newbies as there may be different users.
 808                 # Note that we already excluded rows with hidden user names.
 809                 if( $this->contribs == 'newbie' ) {
 810                         $userlink = ' . . ' . Linker::userLink( $rev->getUser(), $rev->getUserText() );
 811                         $userlink .= ' ' . wfMsg( 'parentheses',
 812                                 Linker::userTalkLink( $rev->getUser(), $rev->getUserText() ) ) . ' ';
 813                 } else {
 814                         $userlink = '';
 815                 }
 816
 817                 if( $rev->getParentId() === 0 ) {
 818                         $nflag = ChangesList::flag( 'newpage' );
 819                 } else {
 820                         $nflag = '';
 821                 }
 822
 823                 if( $rev->isMinor() ) {
 824                         $mflag = ChangesList::flag( 'minor' );
 825                 } else {
 826                         $mflag = '';
 827                 }
 828
 829                 // Don't show useless link to people who cannot hide revisions
 830                 $canHide = $user->isAllowed( 'deleterevision' );
 831                 if( $canHide || ($rev->getVisibility() && $user->isAllowed('deletedhistory')) ) {
 832                         if( !$rev->userCan( Revision::DELETED_RESTRICTED, $user ) ) {
 833                                 $del = Linker::revDeleteLinkDisabled( $canHide ); // revision was hidden from sysops
 834                         } else {
 835                                 $query = array(
 836                                         'type'   => 'revision',
 837                                         'target' => $page->getPrefixedDbkey(),
 838                                         'ids'    => $rev->getId()
 839                                 );
 840                                 $del = Linker::revDeleteLink( $query,
 841                                         $rev->isDeleted( Revision::DELETED_RESTRICTED ), $canHide );
 842                         }
 843                         $del .= ' ';
 844                 } else {
 845                         $del = '';
 846                 }
 847
 848                 $diffHistLinks = '(' . $difftext . $this->messages['pipe-separator'] . $histlink . ')';
 849                 $ret = "{$del}{$d} {$diffHistLinks}{$chardiff}{$nflag}{$mflag} {$link}{$userlink} {$comment} {$topmarktext}";
 850
 851                 # Denote if username is redacted for this edit
 852                 if( $rev->isDeleted( Revision::DELETED_USER ) ) {
 853                         $ret .= " <strong>" . wfMsgHtml('rev-deleted-user-contribs') . "</strong>";
 854                 }
 855
 856                 # Tags, if any.
 857                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $row->ts_tags, 'contributions' );
 858                 $classes = array_merge( $classes, $newClasses );
 859                 $ret .= " $tagSummary";
 860
 861                 // Let extensions add data
 862                 wfRunHooks( 'ContributionsLineEnding', array( &$this, &$ret, $row ) );
 863
 864                 $classes = implode( ' ', $classes );
 865                 $ret = "<li class=\"$classes\">$ret</li>\n";
 866                 wfProfileOut( __METHOD__ );
 867                 return $ret;
 868         }
 869
 870         /**
 871          * Get the Database object in use
 872          *
 873          * @return DatabaseBase
 874          */
 875         public function getDatabase() {
 876                 return $this->mDb;
 877         }
 878
 879         /**
 880          * Overwrite Pager function and return a helpful comment
 881          */
 882         function getSqlComment() {
 883                 if ( $this->namespace || $this->deletedOnly ) {
 884                         return 'contributions page filtered for namespace or RevisionDeleted edits'; // potentially slow, see CR r58153
 885                 } else {
 886                         return 'contributions page unfiltered';
 887                 }
 888         }
 889
 890         protected function preventClickjacking() {
 891                 $this->preventClickjacking = true;
 892         }
 893
 894         public function getPreventClickjacking() {
 895                 return $this->preventClickjacking;
 896         }
 897 }