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 !== null ) {
  48                         $target = $par;
  49                 } else {
  50                         $target = $request->getVal( 'target' );
  51                 }
  52
  53                 // check for radiobox
  54                 if ( $request->getVal( 'contribs' ) == 'newbie' ) {
  55                         $target = 'newbies';
  56                         $this->opts['contribs'] = 'newbie';
  57                 } else {
  58                         $this->opts['contribs'] = 'user';
  59                 }
  60
  61                 $this->opts['deletedOnly'] = $request->getBool( 'deletedOnly' );
  62
  63                 if ( !strlen( $target ) ) {
  64                         $out->addHTML( $this->getForm() );
  65                         return;
  66                 }
  67
  68                 $user = $this->getUser();
  69
  70                 $this->opts['limit'] = $request->getInt( 'limit', $user->getOption( 'rclimit' ) );
  71                 $this->opts['target'] = $target;
  72                 $this->opts['topOnly'] = $request->getBool( 'topOnly' );
  73
  74                 $userObj = User::newFromName( $target, false );
  75                 if ( !$userObj ) {
  76                         $out->addHTML( $this->getForm() );
  77                         return;
  78                 }
  79                 $nt = $userObj->getUserPage();
  80                 $id = $userObj->getID();
  81
  82                 if ( $this->opts['contribs'] != 'newbie' ) {
  83                         $target = $nt->getText();
  84                         $out->addSubtitle( $this->contributionsSub( $userObj ) );
  85                         $out->setHTMLTitle( $this->msg( 'pagetitle', $this->msg( 'contributions-title', $target )->plain() ) );
  86                         $this->getSkin()->setRelevantUser( $userObj );
  87                 } else {
  88                         $out->addSubtitle( $this->msg( 'sp-contributions-newbies-sub' ) );
  89                         $out->setHTMLTitle( $this->msg( 'pagetitle', $this->msg( 'sp-contributions-newbies-title' )->plain() ) );
  90                 }
  91
  92                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
  93                         $this->opts['namespace'] = intval( $ns );
  94                 } else {
  95                         $this->opts['namespace'] = '';
  96                 }
  97
  98                 $this->opts['associated'] = $request->getBool( 'associated' );
  99
 100                 $this->opts['nsInvert'] = (bool) $request->getVal( 'nsInvert' );
 101
 102                 $this->opts['tagfilter'] = (string) $request->getVal( 'tagfilter' );
 103
 104                 // Allows reverts to have the bot flag in recent changes. It is just here to
 105                 // be passed in the form at the top of the page
 106                 if ( $user->isAllowed( 'markbotedits' ) && $request->getBool( 'bot' ) ) {
 107                         $this->opts['bot'] = '1';
 108                 }
 109
 110                 $skip = $request->getText( 'offset' ) || $request->getText( 'dir' ) == 'prev';
 111                 # Offset overrides year/month selection
 112                 if ( $skip ) {
 113                         $this->opts['year'] = '';
 114                         $this->opts['month'] = '';
 115                 } else {
 116                         $this->opts['year'] = $request->getIntOrNull( 'year' );
 117                         $this->opts['month'] = $request->getIntOrNull( 'month' );
 118                 }
 119
 120                 $feedType = $request->getVal( 'feed' );
 121                 if ( $feedType ) {
 122                         // Maintain some level of backwards compatability
 123                         // If people request feeds using the old parameters, redirect to API
 124                         $apiParams = array(
 125                                 'action' => 'feedcontributions',
 126                                 'feedformat' => $feedType,
 127                                 'user' => $target,
 128                         );
 129                         if ( $this->opts['topOnly'] ) {
 130                                 $apiParams['toponly'] = true;
 131                         }
 132                         if ( $this->opts['deletedOnly'] ) {
 133                                 $apiParams['deletedonly'] = true;
 134                         }
 135                         if ( $this->opts['tagfilter'] !== '' ) {
 136                                 $apiParams['tagfilter'] = $this->opts['tagfilter'];
 137                         }
 138                         if ( $this->opts['namespace'] !== '' ) {
 139                                 $apiParams['namespace'] = $this->opts['namespace'];
 140                         }
 141                         if ( $this->opts['year'] !== null ) {
 142                                 $apiParams['year'] = $this->opts['year'];
 143                         }
 144                         if ( $this->opts['month'] !== null ) {
 145                                 $apiParams['month'] = $this->opts['month'];
 146                         }
 147
 148                         $url = wfScript( 'api' ) . '?' . wfArrayToCGI( $apiParams );
 149
 150                         $out->redirect( $url, '301' );
 151                         return;
 152                 }
 153
 154                 // Add RSS/atom links
 155                 $this->addFeedLinks( array( 'action' => 'feedcontributions', 'user' => $target ) );
 156
 157                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 158
 159                         $out->addHTML( $this->getForm() );
 160
 161                         $pager = new ContribsPager( $this->getContext(), array(
 162                                 'target' => $target,
 163                                 'contribs' => $this->opts['contribs'],
 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                                 'nsInvert' => $this->opts['nsInvert'],
 170                                 'associated' => $this->opts['associated'],
 171                         ) );
 172                         if ( !$pager->getNumRows() ) {
 173                                 $out->addWikiMsg( 'nocontribs', $target );
 174                         } else {
 175                                 # Show a message about slave lag, if applicable
 176                                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 177                                 if ( $lag > 0 )
 178                                         $out->showLagWarning( $lag );
 179
 180                                 $out->addHTML(
 181                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 182                                         $pager->getBody() .
 183                                         '<p>' . $pager->getNavigationBar() . '</p>'
 184                                 );
 185                         }
 186                         $out->preventClickjacking( $pager->getPreventClickjacking() );
 187
 188                         # Show the appropriate "footer" message - WHOIS tools, etc.
 189                         if ( $this->opts['contribs'] != 'newbie' ) {
 190                                 $message = 'sp-contributions-footer';
 191                                 if ( IP::isIPAddress( $target ) ) {
 192                                         $message = 'sp-contributions-footer-anon';
 193                                 } else {
 194                                         if ( $userObj->isAnon() ) {
 195                                                 // No message for non-existing users
 196                                                 return;
 197                                         }
 198                                 }
 199
 200                                 if ( !$this->msg( $message, $target )->isDisabled() ) {
 201                                         $out->wrapWikiMsg(
 202                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 203                                                 array( $message, $target ) );
 204                                 }
 205                         }
 206                 }
 207         }
 208
 209         /**
 210          * Generates the subheading with links
 211          * @param $userObj User object 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( $userObj ) {
 216                 if ( $userObj->isAnon() ) {
 217                         $user = htmlspecialchars( $userObj->getName() );
 218                 } else {
 219                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 220                 }
 221                 $nt = $userObj->getUserPage();
 222                 $talk = $userObj->getTalkPage();
 223                 if ( $talk ) {
 224                         $tools = $this->getUserLinks( $nt, $talk, $userObj );
 225                         $links = $this->getLanguage()->pipeList( $tools );
 226
 227                         // Show a note if the user is blocked and display the last block log entry.
 228                         if ( $userObj->isBlocked() ) {
 229                                 $out = $this->getOutput(); // showLogExtract() wants first parameter by reference
 230                                 LogEventsList::showLogExtract(
 231                                         $out,
 232                                         'block',
 233                                         $nt,
 234                                         '',
 235                                         array(
 236                                                 'lim' => 1,
 237                                                 'showIfEmpty' => false,
 238                                                 'msgKey' => array(
 239                                                         $userObj->isAnon() ?
 240                                                                 'sp-contributions-blocked-notice-anon' :
 241                                                                 'sp-contributions-blocked-notice',
 242                                                         $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 243                                                 ),
 244                                                 'offset' => '' # don't use WebRequest parameter offset
 245                                         )
 246                                 );
 247                         }
 248                 }
 249
 250                 // Old message 'contribsub' had one parameter, but that doesn't work for
 251                 // languages that want to put the "for" bit right after $user but before
 252                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 253                 // otherwise use 'contribsub2'.
 254                 $oldMsg = $this->msg( 'contribsub' );
 255                 if ( $oldMsg->exists() ) {
 256                         return $oldMsg->rawParams( "$user ($links)" );
 257                 } else {
 258                         return $this->msg( 'contribsub2' )->rawParams( $user, $links );
 259                 }
 260         }
 261
 262         /**
 263          * Links to different places.
 264          * @param $userpage Title: Target user page
 265          * @param $talkpage Title: Talk page
 266          * @param $target User: Target user object
 267          * @return array
 268          */
 269         public function getUserLinks( Title $userpage, Title $talkpage, User $target ) {
 270
 271                 $id = $target->getId();
 272                 $username = $target->getName();
 273
 274                 $tools[] = Linker::link( $talkpage, $this->msg( 'sp-contributions-talk' )->escaped() );
 275
 276                 if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 277                         if ( $this->getUser()->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 278                                 if ( $target->isBlocked() ) {
 279                                         $tools[] = Linker::linkKnown( # Change block link
 280                                                 SpecialPage::getTitleFor( 'Block', $username ),
 281                                                 $this->msg( 'change-blocklink' )->escaped()
 282                                         );
 283                                         $tools[] = Linker::linkKnown( # Unblock link
 284                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 285                                                 $this->msg( 'unblocklink' )->escaped()
 286                                         );
 287                                 } else { # User is not blocked
 288                                         $tools[] = Linker::linkKnown( # Block link
 289                                                 SpecialPage::getTitleFor( 'Block', $username ),
 290                                                 $this->msg( 'blocklink' )->escaped()
 291                                         );
 292                                 }
 293                         }
 294                         # Block log link
 295                         $tools[] = Linker::linkKnown(
 296                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 297                                 $this->msg( 'sp-contributions-blocklog' )->escaped(),
 298                                 array(),
 299                                 array(
 300                                         'page' => $userpage->getPrefixedText()
 301                                 )
 302                         );
 303                 }
 304                 # Uploads
 305                 $tools[] = Linker::linkKnown(
 306                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 307                         $this->msg( 'sp-contributions-uploads' )->escaped()
 308                 );
 309
 310                 # Other logs link
 311                 $tools[] = Linker::linkKnown(
 312                         SpecialPage::getTitleFor( 'Log', $username ),
 313                         $this->msg( 'sp-contributions-logs' )->escaped()
 314                 );
 315
 316                 # Add link to deleted user contributions for priviledged users
 317                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 318                         $tools[] = Linker::linkKnown(
 319                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 320                                 $this->msg( 'sp-contributions-deleted' )->escaped()
 321                         );
 322                 }
 323
 324                 # Add a link to change user rights for privileged users
 325                 $userrightsPage = new UserrightsPage();
 326                 $userrightsPage->setContext( $this->getContext() );
 327                 if ( $id !== null && $userrightsPage->userCanChangeRights( $target ) ) {
 328                         $tools[] = Linker::linkKnown(
 329                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 330                                 $this->msg( 'sp-contributions-userrights' )->escaped()
 331                         );
 332                 }
 333
 334                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 335                 return $tools;
 336         }
 337
 338         /**
 339          * Generates the namespace selector form with hidden attributes.
 340          * @return String: HTML fragment
 341          */
 342         protected function getForm() {
 343                 global $wgScript;
 344
 345                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 346                 if ( !isset( $this->opts['target'] ) ) {
 347                         $this->opts['target'] = '';
 348                 } else {
 349                         $this->opts['target'] = str_replace( '_' , ' ' , $this->opts['target'] );
 350                 }
 351
 352                 if ( !isset( $this->opts['namespace'] ) ) {
 353                         $this->opts['namespace'] = '';
 354                 }
 355
 356                 if ( !isset( $this->opts['nsInvert'] ) ) {
 357                         $this->opts['nsInvert'] = '';
 358                 }
 359
 360                 if ( !isset( $this->opts['associated'] ) ) {
 361                         $this->opts['associated'] = false;
 362                 }
 363
 364                 if ( !isset( $this->opts['contribs'] ) ) {
 365                         $this->opts['contribs'] = 'user';
 366                 }
 367
 368                 if ( !isset( $this->opts['year'] ) ) {
 369                         $this->opts['year'] = '';
 370                 }
 371
 372                 if ( !isset( $this->opts['month'] ) ) {
 373                         $this->opts['month'] = '';
 374                 }
 375
 376                 if ( $this->opts['contribs'] == 'newbie' ) {
 377                         $this->opts['target'] = '';
 378                 }
 379
 380                 if ( !isset( $this->opts['tagfilter'] ) ) {
 381                         $this->opts['tagfilter'] = '';
 382                 }
 383
 384                 if ( !isset( $this->opts['topOnly'] ) ) {
 385                         $this->opts['topOnly'] = false;
 386                 }
 387
 388                 $form = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'class' => 'mw-contributions-form' ) );
 389
 390                 # Add hidden params for tracking except for parameters in $skipParameters
 391                 $skipParameters = array( 'namespace', 'nsInvert', 'deletedOnly', 'target', 'contribs', 'year', 'month', 'topOnly', 'associated' );
 392                 foreach ( $this->opts as $name => $value ) {
 393                         if ( in_array( $name, $skipParameters ) ) {
 394                                 continue;
 395                         }
 396                         $form .= "\t" . Html::hidden( $name, $value ) . "\n";
 397                 }
 398
 399                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagfilter'] );
 400
 401                 if ( $tagFilter ) {
 402                         $filterSelection =
 403                                 Xml::tags( 'td', array( 'class' => 'mw-label' ), array_shift( $tagFilter ) ) .
 404                                 Xml::tags( 'td', array( 'class' => 'mw-input' ), implode( '&#160', $tagFilter ) );
 405                 } else {
 406                         $filterSelection = Xml::tags( 'td', array( 'colspan' => 2 ), '' );
 407                 }
 408
 409                 $targetSelection = Xml::tags( 'td', array( 'colspan' => 2 ),
 410                         Xml::radioLabel(
 411                                 $this->msg( 'sp-contributions-newbies' )->text(),
 412                                 'contribs',
 413                                 'newbie' ,
 414                                 'newbie',
 415                                 $this->opts['contribs'] == 'newbie',
 416                                 array( 'class' => 'mw-input' )
 417                         ) . '<br />' .
 418                         Xml::radioLabel(
 419                                 $this->msg( 'sp-contributions-username' )->text(),
 420                                 'contribs',
 421                                 'user',
 422                                 'user',
 423                                 $this->opts['contribs'] == 'user',
 424                                 array( 'class' => 'mw-input' )
 425                         ) . ' ' .
 426                         Html::input(
 427                                 'target',
 428                                 $this->opts['target'],
 429                                 'text',
 430                                 array( 'size' => '20', 'required' => '', 'class' => 'mw-input' ) +
 431                                         ( $this->opts['target'] ? array() : array( 'autofocus' )
 432                                 )
 433                         ) . ' '
 434                 ) ;
 435
 436                 $namespaceSelection =
 437                         Xml::tags( 'td', array( 'class' => 'mw-label' ),
 438                                 Xml::label(
 439                                         $this->msg( 'namespace' )->text(),
 440                                         'namespace',
 441                                         ''
 442                                 )
 443                         ) .
 444                         Xml::tags( 'td', null,
 445                                 Xml::namespaceSelector( $this->opts['namespace'], '' ) . '&#160;' .
 446                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 447                                         Xml::checkLabel(
 448                                                 $this->msg( 'invert' )->text(),
 449                                                 'nsInvert',
 450                                                 'nsInvert',
 451                                                 $this->opts['nsInvert'],
 452                                                 array( 'title' => $this->msg( 'tooltip-invert' )->text(), 'class' => 'mw-input' )
 453                                         ) . '&#160;'
 454                                 ) .
 455                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 456                                         Xml::checkLabel(
 457                                                 $this->msg( 'namespace_association' )->text(),
 458                                                 'associated',
 459                                                 'associated',
 460                                                 $this->opts['associated'],
 461                                                 array( 'title' => $this->msg( 'tooltip-namespace_association' )->text(), 'class' => 'mw-input' )
 462                                         ) . '&#160;'
 463                                 )
 464                         ) ;
 465
 466                 $extraOptions = Xml::tags( 'td', array( 'colspan' => 2 ),
 467                         Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 468                                 Xml::checkLabel(
 469                                         $this->msg( 'history-show-deleted' )->text(),
 470                                         'deletedOnly',
 471                                         'mw-show-deleted-only',
 472                                         $this->opts['deletedOnly'],
 473                                         array( 'class' => 'mw-input' )
 474                                 )
 475                         ) .
 476                         Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 477                                 Xml::checkLabel(
 478                                         $this->msg( 'sp-contributions-toponly' )->text(),
 479                                         'topOnly',
 480                                         'mw-show-top-only',
 481                                         $this->opts['topOnly'],
 482                                         array( 'class' => 'mw-input' )
 483                                 )
 484                         )
 485                 ) ;
 486
 487                 $dateSelectionAndSubmit = Xml::tags( 'td', array( 'colspan' => 2 ),
 488                         Xml::dateMenu(
 489                                 $this->opts['year'],
 490                                 $this->opts['month']
 491                         ) . ' ' .
 492                         Xml::submitButton(
 493                                 $this->msg( 'sp-contributions-submit' )->text(),
 494                                 array( 'class' => 'mw-submit' )
 495                         )
 496                 ) ;
 497
 498                 $form .=
 499                         Xml::fieldset( $this->msg( 'sp-contributions-search' )->text() ) .
 500                         Xml::openElement( 'table', array( 'class' => 'mw-contributions-table' ) ) .
 501                                 Xml::openElement( 'tr' ) .
 502                                         $targetSelection .
 503                                 Xml::closeElement( 'tr' ) .
 504                                 Xml::openElement( 'tr' ) .
 505                                         $namespaceSelection .
 506                                 Xml::closeElement( 'tr' ) .
 507                                 Xml::openElement( 'tr' ) .
 508                                         $filterSelection .
 509                                 Xml::closeElement( 'tr' ) .
 510                                 Xml::openElement( 'tr' ) .
 511                                         $extraOptions .
 512                                 Xml::closeElement( 'tr' ) .
 513                                 Xml::openElement( 'tr' ) .
 514                                         $dateSelectionAndSubmit .
 515                                 Xml::closeElement( 'tr' ) .
 516                         Xml::closeElement( 'table' );
 517
 518                 $explain = $this->msg( 'sp-contributions-explain' );
 519                 if ( $explain->exists() ) {
 520                         $form .= "<p id='mw-sp-contributions-explain'>{$explain}</p>";
 521                 }
 522                 $form .= Xml::closeElement( 'fieldset' ) .
 523                         Xml::closeElement( 'form' );
 524                 return $form;
 525         }
 526 }
 527
 528 /**
 529  * Pager for Special:Contributions
 530  * @ingroup SpecialPage Pager
 531  */
 532 class ContribsPager extends ReverseChronologicalPager {
 533         public $mDefaultDirection = true;
 534         var $messages, $target;
 535         var $namespace = '', $mDb;
 536         var $preventClickjacking = false;
 537
 538         function __construct( IContextSource $context, array $options ) {
 539                 parent::__construct( $context );
 540
 541                 $msgs = array( 'uctop', 'diff', 'newarticle', 'rollbacklink', 'diff', 'hist', 'rev-delundel', 'pipe-separator' );
 542
 543                 foreach ( $msgs as $msg ) {
 544                         $this->messages[$msg] = $this->msg( $msg )->escaped();
 545                 }
 546
 547                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 548                 $this->contribs = isset( $options['contribs'] ) ? $options['contribs'] : 'users';
 549                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 550                 $this->tagFilter = isset( $options['tagfilter'] ) ? $options['tagfilter'] : false;
 551                 $this->nsInvert = isset( $options['nsInvert'] ) ? $options['nsInvert'] : false;
 552                 $this->associated = isset( $options['associated'] ) ? $options['associated'] : false;
 553
 554                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 555                 $this->topOnly = !empty( $options['topOnly'] );
 556
 557                 $year = isset( $options['year'] ) ? $options['year'] : false;
 558                 $month = isset( $options['month'] ) ? $options['month'] : false;
 559                 $this->getDateCond( $year, $month );
 560
 561                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 562         }
 563
 564         function getDefaultQuery() {
 565                 $query = parent::getDefaultQuery();
 566                 $query['target'] = $this->target;
 567                 return $query;
 568         }
 569
 570         function getQueryInfo() {
 571                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 572
 573                 $user = $this->getUser();
 574                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 575
 576                 // Paranoia: avoid brute force searches (bug 17342)
 577                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 578                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0';
 579                 } elseif ( !$user->isAllowed( 'suppressrevision' ) ) {
 580                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::SUPPRESSED_USER ) .
 581                                 ' != ' . Revision::SUPPRESSED_USER;
 582                 }
 583
 584                 # Don't include orphaned revisions
 585                 $join_cond['page'] = Revision::pageJoinCond();
 586                 # Get the current user name for accounts
 587                 $join_cond['user'] = Revision::userJoinCond();
 588
 589                 $queryInfo = array(
 590                         'tables'     => $tables,
 591                         'fields'     => array_merge(
 592                                 Revision::selectFields(),
 593                                 Revision::selectUserFields(),
 594                                 array( 'page_namespace', 'page_title', 'page_is_new',
 595                                         'page_latest', 'page_is_redirect', 'page_len' )
 596                         ),
 597                         'conds'      => $conds,
 598                         'options'    => array( 'USE INDEX' => array( 'revision' => $index ) ),
 599                         'join_conds' => $join_cond
 600                 );
 601
 602                 ChangeTags::modifyDisplayQuery(
 603                         $queryInfo['tables'],
 604                         $queryInfo['fields'],
 605                         $queryInfo['conds'],
 606                         $queryInfo['join_conds'],
 607                         $queryInfo['options'],
 608                         $this->tagFilter
 609                 );
 610
 611                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 612                 return $queryInfo;
 613         }
 614
 615         function getUserCond() {
 616                 $condition = array();
 617                 $join_conds = array();
 618                 $tables = array( 'revision', 'page', 'user' );
 619                 if ( $this->contribs == 'newbie' ) {
 620                         $tables[] = 'user_groups';
 621                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 622                         $condition[] = 'rev_user >' . (int)( $max - $max / 100 );
 623                         $condition[] = 'ug_group IS NULL';
 624                         $index = 'user_timestamp';
 625                         # @todo FIXME: Other groups may have 'bot' rights
 626                         $join_conds['user_groups'] = array( 'LEFT JOIN', "ug_user = rev_user AND ug_group = 'bot'" );
 627                 } else {
 628                         if ( IP::isIPAddress( $this->target ) ) {
 629                                 $condition['rev_user_text'] = $this->target;
 630                                 $index = 'usertext_timestamp';
 631                         } else {
 632                                 $condition['rev_user'] = User::idFromName( $this->target );
 633                                 $index = 'user_timestamp';
 634                         }
 635                 }
 636                 if ( $this->deletedOnly ) {
 637                         $condition[] = "rev_deleted != '0'";
 638                 }
 639                 if ( $this->topOnly ) {
 640                         $condition[] = "rev_id = page_latest";
 641                 }
 642                 return array( $tables, $index, $condition, $join_conds );
 643         }
 644
 645         function getNamespaceCond() {
 646                 if ( $this->namespace !== '' ) {
 647                         $selectedNS = $this->mDb->addQuotes( $this->namespace );
 648                         $eq_op = $this->nsInvert ? '!=' : '=';
 649                         $bool_op = $this->nsInvert ? 'AND' : 'OR';
 650
 651                         if ( !$this->associated ) {
 652                                 return array( "page_namespace $eq_op $selectedNS" );
 653                         } else {
 654                                 $associatedNS = $this->mDb->addQuotes (
 655                                         MWNamespace::getAssociated( $this->namespace )
 656                                 );
 657                                 return array(
 658                                         "page_namespace $eq_op $selectedNS " .
 659                                         $bool_op .
 660                                         " page_namespace $eq_op $associatedNS"
 661                                 );
 662                         }
 663
 664                 } else {
 665                         return array();
 666                 }
 667         }
 668
 669         function getIndexField() {
 670                 return 'rev_timestamp';
 671         }
 672
 673         function doBatchLookups() {
 674                 $this->mResult->rewind();
 675                 $revIds = array();
 676                 foreach ( $this->mResult as $row ) {
 677                         if( $row->rev_parent_id ) {
 678                                 $revIds[] = $row->rev_parent_id;
 679                         }
 680                 }
 681                 $this->mParentLens = $this->getParentLengths( $revIds );
 682                 $this->mResult->rewind(); // reset
 683
 684                 # Do a link batch query
 685                 $this->mResult->seek( 0 );
 686                 $batch = new LinkBatch();
 687                 # Give some pointers to make (last) links
 688                 foreach ( $this->mResult as $row ) {
 689                         if ( $this->contribs === 'newbie' ) { // multiple users
 690                                 $batch->add( NS_USER, $row->user_name );
 691                                 $batch->add( NS_USER_TALK, $row->user_name );
 692                         }
 693                         $batch->add( $row->page_namespace, $row->page_title );
 694                 }
 695                 $batch->execute();
 696                 $this->mResult->seek( 0 );
 697         }
 698
 699         /**
 700          * Do a batched query to get the parent revision lengths
 701          * @return array
 702          */
 703         private function getParentLengths( array $revIds ) {
 704                 $revLens = array();
 705                 if ( !$revIds ) {
 706                         return $revLens; // empty
 707                 }
 708                 wfProfileIn( __METHOD__ );
 709                 $res = $this->getDatabase()->select( 'revision',
 710                         array( 'rev_id', 'rev_len' ),
 711                         array( 'rev_id' => $revIds ),
 712                         __METHOD__ );
 713                 foreach ( $res as $row ) {
 714                         $revLens[$row->rev_id] = $row->rev_len;
 715                 }
 716                 wfProfileOut( __METHOD__ );
 717                 return $revLens;
 718         }
 719
 720         /**
 721          * @return string
 722          */
 723         function getStartBody() {
 724                 return "<ul>\n";
 725         }
 726
 727         /**
 728          * @return string
 729          */
 730         function getEndBody() {
 731                 return "</ul>\n";
 732         }
 733
 734         /**
 735          * Generates each row in the contributions list.
 736          *
 737          * Contributions which are marked "top" are currently on top of the history.
 738          * For these contributions, a [rollback] link is shown for users with roll-
 739          * back privileges. The rollback link restores the most recent version that
 740          * was not written by the target user.
 741          *
 742          * @todo This would probably look a lot nicer in a table.
 743          * @return string
 744          */
 745         function formatRow( $row ) {
 746                 wfProfileIn( __METHOD__ );
 747
 748                 $rev = new Revision( $row );
 749                 $classes = array();
 750
 751                 $page = Title::newFromRow( $row );
 752                 $link = Linker::link(
 753                         $page,
 754                         htmlspecialchars( $page->getPrefixedText() ),
 755                         array(),
 756                         $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 757                 );
 758                 # Mark current revisions
 759                 $topmarktext = '';
 760                 if ( $row->rev_id == $row->page_latest ) {
 761                         $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 762                         # Add rollback link
 763                         if ( !$row->page_is_new && $page->quickUserCan( 'rollback' )
 764                                 && $page->quickUserCan( 'edit' ) )
 765                         {
 766                                 $this->preventClickjacking();
 767                                 $topmarktext .= ' ' . Linker::generateRollback( $rev );
 768                         }
 769                 }
 770                 $user = $this->getUser();
 771                 # Is there a visible previous revision?
 772                 if ( $rev->userCan( Revision::DELETED_TEXT, $user ) && $rev->getParentId() !== 0 ) {
 773                         $difftext = Linker::linkKnown(
 774                                 $page,
 775                                 $this->messages['diff'],
 776                                 array(),
 777                                 array(
 778                                         'diff' => 'prev',
 779                                         'oldid' => $row->rev_id
 780                                 )
 781                         );
 782                 } else {
 783                         $difftext = $this->messages['diff'];
 784                 }
 785                 $histlink = Linker::linkKnown(
 786                         $page,
 787                         $this->messages['hist'],
 788                         array(),
 789                         array( 'action' => 'history' )
 790                 );
 791
 792                 $parentLen = isset( $this->mParentLens[$row->rev_parent_id] ) ? $this->mParentLens[$row->rev_parent_id] : 0;
 793                 $chardiff = ' . . ' . ChangesList::showCharacterDifference(
 794                                 $parentLen, $row->rev_len ) . ' . . ';
 795
 796                 $lang = $this->getLanguage();
 797                 $comment = $lang->getDirMark() . Linker::revComment( $rev, false, true );
 798                 $date = $lang->userTimeAndDate( $row->rev_timestamp, $user );
 799                 if ( $rev->userCan( Revision::DELETED_TEXT, $user ) ) {
 800                         $d = Linker::linkKnown(
 801                                 $page,
 802                                 htmlspecialchars( $date ),
 803                                 array(),
 804                                 array( 'oldid' => intval( $row->rev_id ) )
 805                         );
 806                 } else {
 807                         $d = htmlspecialchars( $date );
 808                 }
 809                 if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 810                         $d = '<span class="history-deleted">' . $d . '</span>';
 811                 }
 812
 813                 # Show user names for /newbies as there may be different users.
 814                 # Note that we already excluded rows with hidden user names.
 815                 if ( $this->contribs == 'newbie' ) {
 816                         $userlink = ' . . ' . Linker::userLink( $rev->getUser(), $rev->getUserText() );
 817                         $userlink .= ' ' . $this->msg( 'parentheses' )->rawParams(
 818                                 Linker::userTalkLink( $rev->getUser(), $rev->getUserText() ) )->escaped() . ' ';
 819                 } else {
 820                         $userlink = '';
 821                 }
 822
 823                 if ( $rev->getParentId() === 0 ) {
 824                         $nflag = ChangesList::flag( 'newpage' );
 825                 } else {
 826                         $nflag = '';
 827                 }
 828
 829                 if ( $rev->isMinor() ) {
 830                         $mflag = ChangesList::flag( 'minor' );
 831                 } else {
 832                         $mflag = '';
 833                 }
 834
 835                 $del = Linker::getRevDeleteLink( $user, $rev, $page );
 836                 if ( $del !== '' ) {
 837                         $del .= ' ';
 838                 }
 839
 840                 $diffHistLinks = '(' . $difftext . $this->messages['pipe-separator'] . $histlink . ')';
 841                 $ret = "{$del}{$d} {$diffHistLinks}{$chardiff}{$nflag}{$mflag} {$link}{$userlink} {$comment} {$topmarktext}";
 842
 843                 # Denote if username is redacted for this edit
 844                 if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
 845                         $ret .= " <strong>" . $this->msg( 'rev-deleted-user-contribs' )->escaped() . "</strong>";
 846                 }
 847
 848                 # Tags, if any.
 849                 list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow( $row->ts_tags, 'contributions' );
 850                 $classes = array_merge( $classes, $newClasses );
 851                 $ret .= " $tagSummary";
 852
 853                 // Let extensions add data
 854                 wfRunHooks( 'ContributionsLineEnding', array( &$this, &$ret, $row ) );
 855
 856                 $classes = implode( ' ', $classes );
 857                 $ret = "<li class=\"$classes\">$ret</li>\n";
 858                 wfProfileOut( __METHOD__ );
 859                 return $ret;
 860         }
 861
 862         /**
 863          * Get the Database object in use
 864          *
 865          * @return DatabaseBase
 866          */
 867         public function getDatabase() {
 868                 return $this->mDb;
 869         }
 870
 871         /**
 872          * Overwrite Pager function and return a helpful comment
 873          * @return string
 874          */
 875         function getSqlComment() {
 876                 if ( $this->namespace || $this->deletedOnly ) {
 877                         return 'contributions page filtered for namespace or RevisionDeleted edits'; // potentially slow, see CR r58153
 878                 } else {
 879                         return 'contributions page unfiltered';
 880                 }
 881         }
 882
 883         protected function preventClickjacking() {
 884                 $this->preventClickjacking = true;
 885         }
 886
 887         public function getPreventClickjacking() {
 888                 return $this->preventClickjacking;
 889         }
 890 }