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         protected $opts;
  32
  33         public function __construct() {
  34                 parent::__construct( 'Contributions' );
  35         }
  36
  37         public function execute( $par ) {
  38                 $this->setHeaders();
  39                 $this->outputHeader();
  40                 $out = $this->getOutput();
  41                 $out->addModuleStyles( 'mediawiki.special' );
  42
  43                 $this->opts = array();
  44                 $request = $this->getRequest();
  45
  46                 if ( $par !== null ) {
  47                         $target = $par;
  48                 } else {
  49                         $target = $request->getVal( 'target' );
  50                 }
  51
  52                 // check for radiobox
  53                 if ( $request->getVal( 'contribs' ) == 'newbie' ) {
  54                         $target = 'newbies';
  55                         $this->opts['contribs'] = 'newbie';
  56                 } elseif ( $par === 'newbies' ) { // b/c for WMF
  57                         $target = 'newbies';
  58                         $this->opts['contribs'] = 'newbie';
  59                 } else {
  60                         $this->opts['contribs'] = 'user';
  61                 }
  62
  63                 $this->opts['deletedOnly'] = $request->getBool( 'deletedOnly' );
  64
  65                 if ( !strlen( $target ) ) {
  66                         $out->addHTML( $this->getForm() );
  67                         return;
  68                 }
  69
  70                 $user = $this->getUser();
  71
  72                 $this->opts['limit'] = $request->getInt( 'limit', $user->getOption( 'rclimit' ) );
  73                 $this->opts['target'] = $target;
  74                 $this->opts['topOnly'] = $request->getBool( 'topOnly' );
  75
  76                 $nt = Title::makeTitleSafe( NS_USER, $target );
  77                 if ( !$nt ) {
  78                         $out->addHTML( $this->getForm() );
  79                         return;
  80                 }
  81                 $userObj = User::newFromName( $nt->getText(), false );
  82                 if ( !$userObj ) {
  83                         $out->addHTML( $this->getForm() );
  84                         return;
  85                 }
  86                 $id = $userObj->getID();
  87
  88                 if ( $this->opts['contribs'] != 'newbie' ) {
  89                         $target = $nt->getText();
  90                         $out->addSubtitle( $this->contributionsSub( $userObj ) );
  91                         $out->setHTMLTitle( $this->msg(
  92                                 'pagetitle',
  93                                 $this->msg( 'contributions-title', $target )->plain()
  94                         ) );
  95                         $this->getSkin()->setRelevantUser( $userObj );
  96                 } else {
  97                         $out->addSubtitle( $this->msg( 'sp-contributions-newbies-sub' ) );
  98                         $out->setHTMLTitle( $this->msg(
  99                                 'pagetitle',
 100                                 $this->msg( 'sp-contributions-newbies-title' )->plain()
 101                         ) );
 102                 }
 103
 104                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 105                         $this->opts['namespace'] = intval( $ns );
 106                 } else {
 107                         $this->opts['namespace'] = '';
 108                 }
 109
 110                 $this->opts['associated'] = $request->getBool( 'associated' );
 111                 $this->opts['nsInvert'] = (bool)$request->getVal( 'nsInvert' );
 112                 $this->opts['tagfilter'] = (string)$request->getVal( 'tagfilter' );
 113
 114                 // Allows reverts to have the bot flag in recent changes. It is just here to
 115                 // be passed in the form at the top of the page
 116                 if ( $user->isAllowed( 'markbotedits' ) && $request->getBool( 'bot' ) ) {
 117                         $this->opts['bot'] = '1';
 118                 }
 119
 120                 $skip = $request->getText( 'offset' ) || $request->getText( 'dir' ) == 'prev';
 121                 # Offset overrides year/month selection
 122                 if ( $skip ) {
 123                         $this->opts['year'] = '';
 124                         $this->opts['month'] = '';
 125                 } else {
 126                         $this->opts['year'] = $request->getIntOrNull( 'year' );
 127                         $this->opts['month'] = $request->getIntOrNull( 'month' );
 128                 }
 129
 130                 $feedType = $request->getVal( 'feed' );
 131                 if ( $feedType ) {
 132                         // Maintain some level of backwards compatability
 133                         // If people request feeds using the old parameters, redirect to API
 134                         $apiParams = array(
 135                                 'action' => 'feedcontributions',
 136                                 'feedformat' => $feedType,
 137                                 'user' => $target,
 138                         );
 139                         if ( $this->opts['topOnly'] ) {
 140                                 $apiParams['toponly'] = true;
 141                         }
 142                         if ( $this->opts['deletedOnly'] ) {
 143                                 $apiParams['deletedonly'] = true;
 144                         }
 145                         if ( $this->opts['tagfilter'] !== '' ) {
 146                                 $apiParams['tagfilter'] = $this->opts['tagfilter'];
 147                         }
 148                         if ( $this->opts['namespace'] !== '' ) {
 149                                 $apiParams['namespace'] = $this->opts['namespace'];
 150                         }
 151                         if ( $this->opts['year'] !== null ) {
 152                                 $apiParams['year'] = $this->opts['year'];
 153                         }
 154                         if ( $this->opts['month'] !== null ) {
 155                                 $apiParams['month'] = $this->opts['month'];
 156                         }
 157
 158                         $url = wfAppendQuery( wfScript( 'api' ), $apiParams );
 159
 160                         $out->redirect( $url, '301' );
 161                         return;
 162                 }
 163
 164                 // Add RSS/atom links
 165                 $this->addFeedLinks( array( 'action' => 'feedcontributions', 'user' => $target ) );
 166
 167                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 168                         $out->addHTML( $this->getForm() );
 169
 170                         $pager = new ContribsPager( $this->getContext(), array(
 171                                 'target' => $target,
 172                                 'contribs' => $this->opts['contribs'],
 173                                 'namespace' => $this->opts['namespace'],
 174                                 'year' => $this->opts['year'],
 175                                 'month' => $this->opts['month'],
 176                                 'deletedOnly' => $this->opts['deletedOnly'],
 177                                 'topOnly' => $this->opts['topOnly'],
 178                                 'nsInvert' => $this->opts['nsInvert'],
 179                                 'associated' => $this->opts['associated'],
 180                         ) );
 181
 182                         if ( !$pager->getNumRows() ) {
 183                                 $out->addWikiMsg( 'nocontribs', $target );
 184                         } else {
 185                                 # Show a message about slave lag, if applicable
 186                                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 187                                 if ( $lag > 0 ) {
 188                                         $out->showLagWarning( $lag );
 189                                 }
 190
 191                                 $out->addHTML(
 192                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 193                                                 $pager->getBody() .
 194                                                 '<p>' . $pager->getNavigationBar() . '</p>'
 195                                 );
 196                         }
 197                         $out->preventClickjacking( $pager->getPreventClickjacking() );
 198
 199                         # Show the appropriate "footer" message - WHOIS tools, etc.
 200                         if ( $this->opts['contribs'] == 'newbie' ) {
 201                                 $message = 'sp-contributions-footer-newbies';
 202                         } elseif ( IP::isIPAddress( $target ) ) {
 203                                 $message = 'sp-contributions-footer-anon';
 204                         } elseif ( $userObj->isAnon() ) {
 205                                 // No message for non-existing users
 206                                 $message = '';
 207                         } else {
 208                                 $message = 'sp-contributions-footer';
 209                         }
 210
 211                         if ( $message ) {
 212                                 if ( !$this->msg( $message, $target )->isDisabled() ) {
 213                                         $out->wrapWikiMsg(
 214                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 215                                                 array( $message, $target ) );
 216                                 }
 217                         }
 218                 }
 219         }
 220
 221         /**
 222          * Generates the subheading with links
 223          * @param $userObj User object for the target
 224          * @return String: appropriately-escaped HTML to be output literally
 225          * @todo FIXME: Almost the same as getSubTitle in SpecialDeletedContributions.php. Could be combined.
 226          */
 227         protected function contributionsSub( $userObj ) {
 228                 if ( $userObj->isAnon() ) {
 229                         $user = htmlspecialchars( $userObj->getName() );
 230                 } else {
 231                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 232                 }
 233                 $nt = $userObj->getUserPage();
 234                 $talk = $userObj->getTalkPage();
 235                 $links = '';
 236                 if ( $talk ) {
 237                         $tools = $this->getUserLinks( $nt, $talk, $userObj );
 238                         $links = $this->getLanguage()->pipeList( $tools );
 239
 240                         // Show a note if the user is blocked and display the last block log entry.
 241                         // Do not expose the autoblocks, since that may lead to a leak of accounts' IPs,
 242                         // and also this will display a totally irrelevant log entry as a current block.
 243                         if ( $userObj->isBlocked() && $userObj->getBlock()->getType() != Block::TYPE_AUTO ) {
 244                                 $out = $this->getOutput(); // showLogExtract() wants first parameter by reference
 245                                 LogEventsList::showLogExtract(
 246                                         $out,
 247                                         'block',
 248                                         $nt,
 249                                         '',
 250                                         array(
 251                                                 'lim' => 1,
 252                                                 'showIfEmpty' => false,
 253                                                 'msgKey' => array(
 254                                                         $userObj->isAnon() ?
 255                                                                 'sp-contributions-blocked-notice-anon' :
 256                                                                 'sp-contributions-blocked-notice',
 257                                                         $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 258                                                 ),
 259                                                 'offset' => '' # don't use WebRequest parameter offset
 260                                         )
 261                                 );
 262                         }
 263                 }
 264
 265                 // Old message 'contribsub' had one parameter, but that doesn't work for
 266                 // languages that want to put the "for" bit right after $user but before
 267                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 268                 // otherwise use 'contribsub2'.
 269                 // @todo Should this be removed at some point?
 270                 $oldMsg = $this->msg( 'contribsub' );
 271                 if ( $oldMsg->exists() ) {
 272                         $linksWithParentheses = $this->msg( 'parentheses' )->rawParams( $links )->escaped();
 273                         return $oldMsg->rawParams( "$user $linksWithParentheses" );
 274                 }
 275
 276                 return $this->msg( 'contribsub2' )->rawParams( $user, $links );
 277         }
 278
 279         /**
 280          * Links to different places.
 281          * @param $userpage Title: Target user page
 282          * @param $talkpage Title: Talk page
 283          * @param $target User: Target user object
 284          * @return array
 285          */
 286         public function getUserLinks( Title $userpage, Title $talkpage, User $target ) {
 287
 288                 $id = $target->getId();
 289                 $username = $target->getName();
 290
 291                 $tools[] = Linker::link( $talkpage, $this->msg( 'sp-contributions-talk' )->escaped() );
 292
 293                 if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 294                         if ( $this->getUser()->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 295                                 if ( $target->isBlocked() ) {
 296                                         $tools[] = Linker::linkKnown( # Change block link
 297                                                 SpecialPage::getTitleFor( 'Block', $username ),
 298                                                 $this->msg( 'change-blocklink' )->escaped()
 299                                         );
 300                                         $tools[] = Linker::linkKnown( # Unblock link
 301                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 302                                                 $this->msg( 'unblocklink' )->escaped()
 303                                         );
 304                                 } else { # User is not blocked
 305                                         $tools[] = Linker::linkKnown( # Block link
 306                                                 SpecialPage::getTitleFor( 'Block', $username ),
 307                                                 $this->msg( 'blocklink' )->escaped()
 308                                         );
 309                                 }
 310                         }
 311                         # Block log link
 312                         $tools[] = Linker::linkKnown(
 313                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 314                                 $this->msg( 'sp-contributions-blocklog' )->escaped(),
 315                                 array(),
 316                                 array( 'page' => $userpage->getPrefixedText() )
 317                         );
 318                 }
 319                 # Uploads
 320                 $tools[] = Linker::linkKnown(
 321                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 322                         $this->msg( 'sp-contributions-uploads' )->escaped()
 323                 );
 324
 325                 # Other logs link
 326                 $tools[] = Linker::linkKnown(
 327                         SpecialPage::getTitleFor( 'Log', $username ),
 328                         $this->msg( 'sp-contributions-logs' )->escaped()
 329                 );
 330
 331                 # Add link to deleted user contributions for priviledged users
 332                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 333                         $tools[] = Linker::linkKnown(
 334                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 335                                 $this->msg( 'sp-contributions-deleted' )->escaped()
 336                         );
 337                 }
 338
 339                 # Add a link to change user rights for privileged users
 340                 $userrightsPage = new UserrightsPage();
 341                 $userrightsPage->setContext( $this->getContext() );
 342                 if ( $userrightsPage->userCanChangeRights( $target ) ) {
 343                         $tools[] = Linker::linkKnown(
 344                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 345                                 $this->msg( 'sp-contributions-userrights' )->escaped()
 346                         );
 347                 }
 348
 349                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 350                 return $tools;
 351         }
 352
 353         /**
 354          * Generates the namespace selector form with hidden attributes.
 355          * @return String: HTML fragment
 356          */
 357         protected function getForm() {
 358                 global $wgScript;
 359
 360                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 361                 if ( !isset( $this->opts['target'] ) ) {
 362                         $this->opts['target'] = '';
 363                 } else {
 364                         $this->opts['target'] = str_replace( '_', ' ', $this->opts['target'] );
 365                 }
 366
 367                 if ( !isset( $this->opts['namespace'] ) ) {
 368                         $this->opts['namespace'] = '';
 369                 }
 370
 371                 if ( !isset( $this->opts['nsInvert'] ) ) {
 372                         $this->opts['nsInvert'] = '';
 373                 }
 374
 375                 if ( !isset( $this->opts['associated'] ) ) {
 376                         $this->opts['associated'] = false;
 377                 }
 378
 379                 if ( !isset( $this->opts['contribs'] ) ) {
 380                         $this->opts['contribs'] = 'user';
 381                 }
 382
 383                 if ( !isset( $this->opts['year'] ) ) {
 384                         $this->opts['year'] = '';
 385                 }
 386
 387                 if ( !isset( $this->opts['month'] ) ) {
 388                         $this->opts['month'] = '';
 389                 }
 390
 391                 if ( $this->opts['contribs'] == 'newbie' ) {
 392                         $this->opts['target'] = '';
 393                 }
 394
 395                 if ( !isset( $this->opts['tagfilter'] ) ) {
 396                         $this->opts['tagfilter'] = '';
 397                 }
 398
 399                 if ( !isset( $this->opts['topOnly'] ) ) {
 400                         $this->opts['topOnly'] = false;
 401                 }
 402
 403                 $form = Html::openElement(
 404                         'form',
 405                         array(
 406                                 'method' => 'get',
 407                                 'action' => $wgScript,
 408                                 'class' => 'mw-contributions-form'
 409                         )
 410                 );
 411
 412                 # Add hidden params for tracking except for parameters in $skipParameters
 413                 $skipParameters = array(
 414                         'namespace',
 415                         'nsInvert',
 416                         'deletedOnly',
 417                         'target',
 418                         'contribs',
 419                         'year',
 420                         'month',
 421                         'topOnly',
 422                         'associated'
 423                 );
 424
 425                 foreach ( $this->opts as $name => $value ) {
 426                         if ( in_array( $name, $skipParameters ) ) {
 427                                 continue;
 428                         }
 429                         $form .= "\t" . Html::hidden( $name, $value ) . "\n";
 430                 }
 431
 432                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagfilter'] );
 433
 434                 if ( $tagFilter ) {
 435                         $filterSelection = Html::rawElement(
 436                                 'td',
 437                                 array( 'class' => 'mw-label' ),
 438                                 array_shift( $tagFilter )
 439                         );
 440                         $filterSelection .= Html::rawElement(
 441                                 'td',
 442                                 array( 'class' => 'mw-input' ),
 443                                 implode( '&#160', $tagFilter )
 444                         );
 445                 } else {
 446                         $filterSelection = Html::rawElement( 'td', array( 'colspan' => 2 ), '' );
 447                 }
 448
 449                 $labelNewbies = Xml::radioLabel(
 450                         $this->msg( 'sp-contributions-newbies' )->text(),
 451                         'contribs',
 452                         'newbie',
 453                         'newbie',
 454                         $this->opts['contribs'] == 'newbie',
 455                         array( 'class' => 'mw-input' )
 456                 );
 457                 $labelUsername = Xml::radioLabel(
 458                         $this->msg( 'sp-contributions-username' )->text(),
 459                         'contribs',
 460                         'user',
 461                         'user',
 462                         $this->opts['contribs'] == 'user',
 463                         array( 'class' => 'mw-input' )
 464                 );
 465                 $input = Html::input(
 466                         'target',
 467                         $this->opts['target'],
 468                         'text',
 469                         array( 'size' => '40', 'required' => '', 'class' => 'mw-input' ) +
 470                                 ( $this->opts['target'] ? array() : array( 'autofocus' )
 471                                 )
 472                 );
 473                 $targetSelection = Html::rawElement(
 474                         'td',
 475                         array( 'colspan' => 2 ),
 476                         $labelNewbies . '<br />' . $labelUsername . ' ' . $input . ' '
 477                 );
 478
 479                 $namespaceSelection = Xml::tags(
 480                         'td',
 481                         array( 'class' => 'mw-label' ),
 482                         Xml::label(
 483                                 $this->msg( 'namespace' )->text(),
 484                                 'namespace',
 485                                 ''
 486                         )
 487                 );
 488                 $namespaceSelection .= Html::rawElement(
 489                         'td',
 490                         null,
 491                         Html::namespaceSelector(
 492                                 array( 'selected' => $this->opts['namespace'], 'all' => '' ),
 493                                 array(
 494                                         'name' => 'namespace',
 495                                         'id' => 'namespace',
 496                                         'class' => 'namespaceselector',
 497                                 )
 498                         ) . '&#160;' .
 499                         Html::rawElement(
 500                                 'span',
 501                                 array( 'style' => 'white-space: nowrap' ),
 502                                 Xml::checkLabel(
 503                                         $this->msg( 'invert' )->text(),
 504                                         'nsInvert',
 505                                         'nsInvert',
 506                                         $this->opts['nsInvert'],
 507                                         array(
 508                                                 'title' => $this->msg( 'tooltip-invert' )->text(),
 509                                                 'class' => 'mw-input'
 510                                         )
 511                                 ) . '&#160;'
 512                         ) .
 513                         Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 514                                 Xml::checkLabel(
 515                                         $this->msg( 'namespace_association' )->text(),
 516                                         'associated',
 517                                         'associated',
 518                                         $this->opts['associated'],
 519                                         array(
 520                                                 'title' => $this->msg( 'tooltip-namespace_association' )->text(),
 521                                                 'class' => 'mw-input'
 522                                         )
 523                                 ) . '&#160;'
 524                         )
 525                 );
 526
 527                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 528                         $deletedOnlyCheck = Html::rawElement(
 529                                 'span',
 530                                 array( 'style' => 'white-space: nowrap' ),
 531                                 Xml::checkLabel(
 532                                         $this->msg( 'history-show-deleted' )->text(),
 533                                         'deletedOnly',
 534                                         'mw-show-deleted-only',
 535                                         $this->opts['deletedOnly'],
 536                                         array( 'class' => 'mw-input' )
 537                                 )
 538                         );
 539                 } else {
 540                         $deletedOnlyCheck = '';
 541                 }
 542
 543                 $checkLabelTopOnly = Html::rawElement(
 544                         'span',
 545                         array( 'style' => 'white-space: nowrap' ),
 546                         Xml::checkLabel(
 547                                 $this->msg( 'sp-contributions-toponly' )->text(),
 548                                 'topOnly',
 549                                 'mw-show-top-only',
 550                                 $this->opts['topOnly'],
 551                                 array( 'class' => 'mw-input' )
 552                         )
 553                 );
 554                 $extraOptions = Html::rawElement(
 555                         'td',
 556                         array( 'colspan' => 2 ),
 557                         $deletedOnlyCheck . $checkLabelTopOnly
 558                 );
 559
 560                 $dateSelectionAndSubmit = Xml::tags( 'td', array( 'colspan' => 2 ),
 561                         Xml::dateMenu(
 562                                 $this->opts['year'],
 563                                 $this->opts['month']
 564                         ) . ' ' .
 565                                 Xml::submitButton(
 566                                         $this->msg( 'sp-contributions-submit' )->text(),
 567                                         array( 'class' => 'mw-submit' )
 568                                 )
 569                 );
 570
 571                 $form .= Xml::fieldset( $this->msg( 'sp-contributions-search' )->text() );
 572                 $form .= Html::rawElement( 'table', array( 'class' => 'mw-contributions-table' ), "\n" .
 573                         Html::rawElement( 'tr', array(), $targetSelection ) . "\n" .
 574                         Html::rawElement( 'tr', array(), $namespaceSelection ) . "\n" .
 575                         Html::rawElement( 'tr', array(), $filterSelection ) . "\n" .
 576                         Html::rawElement( 'tr', array(), $extraOptions ) . "\n" .
 577                         Html::rawElement( 'tr', array(), $dateSelectionAndSubmit ) . "\n"
 578                 );
 579
 580                 $explain = $this->msg( 'sp-contributions-explain' );
 581                 if ( !$explain->isBlank() ) {
 582                         $form .= "<p id='mw-sp-contributions-explain'>{$explain->parse()}</p>";
 583                 }
 584
 585                 $form .= Xml::closeElement( 'fieldset' ) . Xml::closeElement( 'form' );
 586
 587                 return $form;
 588         }
 589
 590         protected function getGroupName() {
 591                 return 'users';
 592         }
 593 }
 594
 595 /**
 596  * Pager for Special:Contributions
 597  * @ingroup SpecialPage Pager
 598  */
 599 class ContribsPager extends ReverseChronologicalPager {
 600         public $mDefaultDirection = true;
 601         var $messages, $target;
 602         var $namespace = '', $mDb;
 603         var $preventClickjacking = false;
 604
 605         /**
 606          * @var array
 607          */
 608         protected $mParentLens;
 609
 610         function __construct( IContextSource $context, array $options ) {
 611                 parent::__construct( $context );
 612
 613                 $msgs = array(
 614                         'diff',
 615                         'hist',
 616                         'newarticle',
 617                         'pipe-separator',
 618                         'rev-delundel',
 619                         'rollbacklink',
 620                         'uctop'
 621                 );
 622
 623                 foreach ( $msgs as $msg ) {
 624                         $this->messages[$msg] = $this->msg( $msg )->escaped();
 625                 }
 626
 627                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 628                 $this->contribs = isset( $options['contribs'] ) ? $options['contribs'] : 'users';
 629                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 630                 $this->tagFilter = isset( $options['tagfilter'] ) ? $options['tagfilter'] : false;
 631                 $this->nsInvert = isset( $options['nsInvert'] ) ? $options['nsInvert'] : false;
 632                 $this->associated = isset( $options['associated'] ) ? $options['associated'] : false;
 633
 634                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 635                 $this->topOnly = !empty( $options['topOnly'] );
 636
 637                 $year = isset( $options['year'] ) ? $options['year'] : false;
 638                 $month = isset( $options['month'] ) ? $options['month'] : false;
 639                 $this->getDateCond( $year, $month );
 640
 641                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 642         }
 643
 644         function getDefaultQuery() {
 645                 $query = parent::getDefaultQuery();
 646                 $query['target'] = $this->target;
 647                 return $query;
 648         }
 649
 650         /**
 651          * This method basically executes the exact same code as the parent class, though with
 652          * a hook added, to allow extentions to add additional queries.
 653          *
 654          * @param string $offset index offset, inclusive
 655          * @param $limit Integer: exact query limit
 656          * @param $descending Boolean: query direction, false for ascending, true for descending
 657          * @return ResultWrapper
 658          */
 659         function reallyDoQuery( $offset, $limit, $descending ) {
 660                 list( $tables, $fields, $conds, $fname, $options, $join_conds ) = $this->buildQueryInfo(
 661                         $offset,
 662                         $limit,
 663                         $descending
 664                 );
 665                 $pager = $this;
 666
 667                 /*
 668                  * This hook will allow extensions to add in additional queries, so they can get their data
 669                  * in My Contributions as well. Extensions should append their results to the $data array.
 670                  *
 671                  * Extension queries have to implement the navbar requirement as well. They should
 672                  * - have a column aliased as $pager->getIndexField()
 673                  * - have LIMIT set
 674                  * - have a WHERE-clause that compares the $pager->getIndexField()-equivalent column to the offset
 675                  * - have the ORDER BY specified based upon the details provided by the navbar
 676                  *
 677                  * See includes/Pager.php buildQueryInfo() method on how to build LIMIT, WHERE & ORDER BY
 678                  *
 679                  * &$data: an array of results of all contribs queries
 680                  * $pager: the ContribsPager object hooked into
 681                  * $offset: see phpdoc above
 682                  * $limit: see phpdoc above
 683                  * $descending: see phpdoc above
 684                  */
 685                 $data = array( $this->mDb->select( $tables, $fields, $conds, $fname, $options, $join_conds ) );
 686                 wfRunHooks( 'ContribsPager::reallyDoQuery', array( &$data, $pager, $offset, $limit, $descending ) );
 687
 688                 $result = array();
 689
 690                 // loop all results and collect them in an array
 691                 foreach ( $data as $query ) {
 692                         foreach ( $query as $i => $row ) {
 693                                 // use index column as key, allowing us to easily sort in PHP
 694                                 $result[$row->{$this->getIndexField()} . "-$i"] = $row;
 695                         }
 696                 }
 697
 698                 // sort results
 699                 if ( $descending ) {
 700                         ksort( $result );
 701                 } else {
 702                         krsort( $result );
 703                 }
 704
 705                 // enforce limit
 706                 $result = array_slice( $result, 0, $limit );
 707
 708                 // get rid of array keys
 709                 $result = array_values( $result );
 710
 711                 return new FakeResultWrapper( $result );
 712         }
 713
 714         function getQueryInfo() {
 715                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 716
 717                 $user = $this->getUser();
 718                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 719
 720                 // Paranoia: avoid brute force searches (bug 17342)
 721                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 722                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0';
 723                 } elseif ( !$user->isAllowed( 'suppressrevision' ) ) {
 724                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::SUPPRESSED_USER ) .
 725                                 ' != ' . Revision::SUPPRESSED_USER;
 726                 }
 727
 728                 # Don't include orphaned revisions
 729                 $join_cond['page'] = Revision::pageJoinCond();
 730                 # Get the current user name for accounts
 731                 $join_cond['user'] = Revision::userJoinCond();
 732
 733                 $queryInfo = array(
 734                         'tables' => $tables,
 735                         'fields' => array_merge(
 736                                 Revision::selectFields(),
 737                                 Revision::selectUserFields(),
 738                                 array( 'page_namespace', 'page_title', 'page_is_new',
 739                                         'page_latest', 'page_is_redirect', 'page_len' )
 740                         ),
 741                         'conds' => $conds,
 742                         'options' => array( 'USE INDEX' => array( 'revision' => $index ) ),
 743                         'join_conds' => $join_cond
 744                 );
 745
 746                 ChangeTags::modifyDisplayQuery(
 747                         $queryInfo['tables'],
 748                         $queryInfo['fields'],
 749                         $queryInfo['conds'],
 750                         $queryInfo['join_conds'],
 751                         $queryInfo['options'],
 752                         $this->tagFilter
 753                 );
 754
 755                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 756                 return $queryInfo;
 757         }
 758
 759         function getUserCond() {
 760                 $condition = array();
 761                 $join_conds = array();
 762                 $tables = array( 'revision', 'page', 'user' );
 763                 if ( $this->contribs == 'newbie' ) {
 764                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 765                         $condition[] = 'rev_user >' . (int)( $max - $max / 100 );
 766                         $index = 'user_timestamp';
 767                         # ignore local groups with the bot right
 768                         # @todo FIXME: Global groups may have 'bot' rights
 769                         $groupsWithBotPermission = User::getGroupsWithPermission( 'bot' );
 770                         if ( count( $groupsWithBotPermission ) ) {
 771                                 $tables[] = 'user_groups';
 772                                 $condition[] = 'ug_group IS NULL';
 773                                 $join_conds['user_groups'] = array(
 774                                         'LEFT JOIN', array(
 775                                                 'ug_user = rev_user',
 776                                                 'ug_group' => $groupsWithBotPermission
 777                                         )
 778                                 );
 779                         }
 780                 } else {
 781                         $uid = User::idFromName( $this->target );
 782                         if ( $uid ) {
 783                                 $condition['rev_user'] = $uid;
 784                                 $index = 'user_timestamp';
 785                         } else {
 786                                 $condition['rev_user_text'] = $this->target;
 787                                 $index = 'usertext_timestamp';
 788                         }
 789                 }
 790
 791                 if ( $this->deletedOnly ) {
 792                         $condition[] = 'rev_deleted != 0';
 793                 }
 794
 795                 if ( $this->topOnly ) {
 796                         $condition[] = 'rev_id = page_latest';
 797                 }
 798
 799                 return array( $tables, $index, $condition, $join_conds );
 800         }
 801
 802         function getNamespaceCond() {
 803                 if ( $this->namespace !== '' ) {
 804                         $selectedNS = $this->mDb->addQuotes( $this->namespace );
 805                         $eq_op = $this->nsInvert ? '!=' : '=';
 806                         $bool_op = $this->nsInvert ? 'AND' : 'OR';
 807
 808                         if ( !$this->associated ) {
 809                                 return array( "page_namespace $eq_op $selectedNS" );
 810                         }
 811
 812                         $associatedNS = $this->mDb->addQuotes(
 813                                 MWNamespace::getAssociated( $this->namespace )
 814                         );
 815
 816                         return array(
 817                                 "page_namespace $eq_op $selectedNS " .
 818                                         $bool_op .
 819                                         " page_namespace $eq_op $associatedNS"
 820                         );
 821                 }
 822
 823                 return array();
 824         }
 825
 826         function getIndexField() {
 827                 return 'rev_timestamp';
 828         }
 829
 830         function doBatchLookups() {
 831                 # Do a link batch query
 832                 $this->mResult->seek( 0 );
 833                 $revIds = array();
 834                 $batch = new LinkBatch();
 835                 # Give some pointers to make (last) links
 836                 foreach ( $this->mResult as $row ) {
 837                         if ( isset( $row->rev_parent_id ) && $row->rev_parent_id ) {
 838                                 $revIds[] = $row->rev_parent_id;
 839                         }
 840                         if ( isset( $row->rev_id ) ) {
 841                                 if ( $this->contribs === 'newbie' ) { // multiple users
 842                                         $batch->add( NS_USER, $row->user_name );
 843                                         $batch->add( NS_USER_TALK, $row->user_name );
 844                                 }
 845                                 $batch->add( $row->page_namespace, $row->page_title );
 846                         }
 847                 }
 848                 $this->mParentLens = Revision::getParentLengths( $this->getDatabase(), $revIds );
 849                 $batch->execute();
 850                 $this->mResult->seek( 0 );
 851         }
 852
 853         /**
 854          * @return string
 855          */
 856         function getStartBody() {
 857                 return "<ul>\n";
 858         }
 859
 860         /**
 861          * @return string
 862          */
 863         function getEndBody() {
 864                 return "</ul>\n";
 865         }
 866
 867         /**
 868          * Generates each row in the contributions list.
 869          *
 870          * Contributions which are marked "top" are currently on top of the history.
 871          * For these contributions, a [rollback] link is shown for users with roll-
 872          * back privileges. The rollback link restores the most recent version that
 873          * was not written by the target user.
 874          *
 875          * @todo This would probably look a lot nicer in a table.
 876          * @param $row
 877          * @return string
 878          */
 879         function formatRow( $row ) {
 880                 wfProfileIn( __METHOD__ );
 881
 882                 $ret = '';
 883                 $classes = array();
 884
 885                 /*
 886                  * There may be more than just revision rows. To make sure that we'll only be processing
 887                  * revisions here, let's _try_ to build a revision out of our row (without displaying
 888                  * notices though) and then trying to grab data from the built object. If we succeed,
 889                  * we're definitely dealing with revision data and we may proceed, if not, we'll leave it
 890                  * to extensions to subscribe to the hook to parse the row.
 891                  */
 892                 wfSuppressWarnings();
 893                 $rev = new Revision( $row );
 894                 $validRevision = (bool)$rev->getId();
 895                 wfRestoreWarnings();
 896
 897                 if ( $validRevision ) {
 898                         $classes = array();
 899
 900                         $page = Title::newFromRow( $row );
 901                         $link = Linker::link(
 902                                 $page,
 903                                 htmlspecialchars( $page->getPrefixedText() ),
 904                                 array( 'class' => 'mw-contributions-title' ),
 905                                 $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 906                         );
 907                         # Mark current revisions
 908                         $topmarktext = '';
 909                         $user = $this->getUser();
 910                         if ( $row->rev_id == $row->page_latest ) {
 911                                 $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 912                                 # Add rollback link
 913                                 if ( !$row->page_is_new && $page->quickUserCan( 'rollback', $user )
 914                                         && $page->quickUserCan( 'edit', $user )
 915                                 ) {
 916                                         $this->preventClickjacking();
 917                                         $topmarktext .= ' ' . Linker::generateRollback( $rev, $this->getContext() );
 918                                 }
 919                         }
 920                         # Is there a visible previous revision?
 921                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) && $rev->getParentId() !== 0 ) {
 922                                 $difftext = Linker::linkKnown(
 923                                         $page,
 924                                         $this->messages['diff'],
 925                                         array(),
 926                                         array(
 927                                                 'diff' => 'prev',
 928                                                 'oldid' => $row->rev_id
 929                                         )
 930                                 );
 931                         } else {
 932                                 $difftext = $this->messages['diff'];
 933                         }
 934                         $histlink = Linker::linkKnown(
 935                                 $page,
 936                                 $this->messages['hist'],
 937                                 array(),
 938                                 array( 'action' => 'history' )
 939                         );
 940
 941                         if ( $row->rev_parent_id === null ) {
 942                                 // For some reason rev_parent_id isn't populated for this row.
 943                                 // Its rumoured this is true on wikipedia for some revisions (bug 34922).
 944                                 // Next best thing is to have the total number of bytes.
 945                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
 946                                 $chardiff .= Linker::formatRevisionSize( $row->rev_len );
 947                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
 948                         } else {
 949                                 $parentLen = isset( $this->mParentLens[$row->rev_parent_id] ) ? $this->mParentLens[$row->rev_parent_id] : 0;
 950                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
 951                                 $chardiff .= ChangesList::showCharacterDifference(
 952                                         $parentLen,
 953                                         $row->rev_len,
 954                                         $this->getContext()
 955                                 );
 956                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
 957                         }
 958
 959                         $lang = $this->getLanguage();
 960                         $comment = $lang->getDirMark() . Linker::revComment( $rev, false, true );
 961                         $date = $lang->userTimeAndDate( $row->rev_timestamp, $user );
 962                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) ) {
 963                                 $d = Linker::linkKnown(
 964                                         $page,
 965                                         htmlspecialchars( $date ),
 966                                         array( 'class' => 'mw-changeslist-date' ),
 967                                         array( 'oldid' => intval( $row->rev_id ) )
 968                                 );
 969                         } else {
 970                                 $d = htmlspecialchars( $date );
 971                         }
 972                         if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 973                                 $d = '<span class="history-deleted">' . $d . '</span>';
 974                         }
 975
 976                         # Show user names for /newbies as there may be different users.
 977                         # Note that we already excluded rows with hidden user names.
 978                         if ( $this->contribs == 'newbie' ) {
 979                                 $userlink = ' . . ' . Linker::userLink( $rev->getUser(), $rev->getUserText() );
 980                                 $userlink .= ' ' . $this->msg( 'parentheses' )->rawParams(
 981                                         Linker::userTalkLink( $rev->getUser(), $rev->getUserText() ) )->escaped() . ' ';
 982                         } else {
 983                                 $userlink = '';
 984                         }
 985
 986                         if ( $rev->getParentId() === 0 ) {
 987                                 $nflag = ChangesList::flag( 'newpage' );
 988                         } else {
 989                                 $nflag = '';
 990                         }
 991
 992                         if ( $rev->isMinor() ) {
 993                                 $mflag = ChangesList::flag( 'minor' );
 994                         } else {
 995                                 $mflag = '';
 996                         }
 997
 998                         $del = Linker::getRevDeleteLink( $user, $rev, $page );
 999                         if ( $del !== '' ) {
1000                                 $del .= ' ';
1001                         }
1002
1003                         $diffHistLinks = $this->msg( 'parentheses' )
1004                                 ->rawParams( $difftext . $this->messages['pipe-separator'] . $histlink )
1005                                 ->escaped();
1006                         $ret = "{$del}{$d} {$diffHistLinks}{$chardiff}{$nflag}{$mflag} {$link}{$userlink} {$comment} {$topmarktext}";
1007
1008                         # Denote if username is redacted for this edit
1009                         if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
1010                                 $ret .= " <strong>" . $this->msg( 'rev-deleted-user-contribs' )->escaped() . "</strong>";
1011                         }
1012
1013                         # Tags, if any.
1014                         list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow(
1015                                 $row->ts_tags,
1016                                 'contributions'
1017                         );
1018                         $classes = array_merge( $classes, $newClasses );
1019                         $ret .= " $tagSummary";
1020                 }
1021
1022                 // Let extensions add data
1023                 wfRunHooks( 'ContributionsLineEnding', array( $this, &$ret, $row, &$classes ) );
1024
1025                 if ( $classes === array() && $ret === '' ) {
1026                         wfDebug( 'Dropping Special:Contribution row that could not be formatted' );
1027                         $ret = "<!-- Could not format Special:Contribution row. -->\n";
1028                 } else {
1029                         $ret = Html::rawElement( 'li', array( 'class' => $classes ), $ret ) . "\n";
1030                 }
1031
1032                 wfProfileOut( __METHOD__ );
1033                 return $ret;
1034         }
1035
1036         /**
1037          * Overwrite Pager function and return a helpful comment
1038          * @return string
1039          */
1040         function getSqlComment() {
1041                 if ( $this->namespace || $this->deletedOnly ) {
1042                         // potentially slow, see CR r58153
1043                         return 'contributions page filtered for namespace or RevisionDeleted edits';
1044                 } else {
1045                         return 'contributions page unfiltered';
1046                 }
1047         }
1048
1049         protected function preventClickjacking() {
1050                 $this->preventClickjacking = true;
1051         }
1052
1053         /**
1054          * @return bool
1055          */
1056         public function getPreventClickjacking() {
1057                 return $this->preventClickjacking;
1058         }
1059 }