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
  68                         return;
  69                 }
  70
  71                 $user = $this->getUser();
  72
  73                 $this->opts['limit'] = $request->getInt( 'limit', $user->getOption( 'rclimit' ) );
  74                 $this->opts['target'] = $target;
  75                 $this->opts['topOnly'] = $request->getBool( 'topOnly' );
  76
  77                 $nt = Title::makeTitleSafe( NS_USER, $target );
  78                 if ( !$nt ) {
  79                         $out->addHTML( $this->getForm() );
  80
  81                         return;
  82                 }
  83                 $userObj = User::newFromName( $nt->getText(), false );
  84                 if ( !$userObj ) {
  85                         $out->addHTML( $this->getForm() );
  86
  87                         return;
  88                 }
  89                 $id = $userObj->getID();
  90
  91                 if ( $this->opts['contribs'] != 'newbie' ) {
  92                         $target = $nt->getText();
  93                         $out->addSubtitle( $this->contributionsSub( $userObj ) );
  94                         $out->setHTMLTitle( $this->msg(
  95                                 'pagetitle',
  96                                 $this->msg( 'contributions-title', $target )->plain()
  97                         ) );
  98                         $this->getSkin()->setRelevantUser( $userObj );
  99                 } else {
 100                         $out->addSubtitle( $this->msg( 'sp-contributions-newbies-sub' ) );
 101                         $out->setHTMLTitle( $this->msg(
 102                                 'pagetitle',
 103                                 $this->msg( 'sp-contributions-newbies-title' )->plain()
 104                         ) );
 105                 }
 106
 107                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 108                         $this->opts['namespace'] = intval( $ns );
 109                 } else {
 110                         $this->opts['namespace'] = '';
 111                 }
 112
 113                 $this->opts['associated'] = $request->getBool( 'associated' );
 114                 $this->opts['nsInvert'] = (bool)$request->getVal( 'nsInvert' );
 115                 $this->opts['tagfilter'] = (string)$request->getVal( 'tagfilter' );
 116
 117                 // Allows reverts to have the bot flag in recent changes. It is just here to
 118                 // be passed in the form at the top of the page
 119                 if ( $user->isAllowed( 'markbotedits' ) && $request->getBool( 'bot' ) ) {
 120                         $this->opts['bot'] = '1';
 121                 }
 122
 123                 $skip = $request->getText( 'offset' ) || $request->getText( 'dir' ) == 'prev';
 124                 # Offset overrides year/month selection
 125                 if ( $skip ) {
 126                         $this->opts['year'] = '';
 127                         $this->opts['month'] = '';
 128                 } else {
 129                         $this->opts['year'] = $request->getIntOrNull( 'year' );
 130                         $this->opts['month'] = $request->getIntOrNull( 'month' );
 131                 }
 132
 133                 $feedType = $request->getVal( 'feed' );
 134                 if ( $feedType ) {
 135                         // Maintain some level of backwards compatability
 136                         // If people request feeds using the old parameters, redirect to API
 137                         $apiParams = array(
 138                                 'action' => 'feedcontributions',
 139                                 'feedformat' => $feedType,
 140                                 'user' => $target,
 141                         );
 142                         if ( $this->opts['topOnly'] ) {
 143                                 $apiParams['toponly'] = true;
 144                         }
 145                         if ( $this->opts['deletedOnly'] ) {
 146                                 $apiParams['deletedonly'] = true;
 147                         }
 148                         if ( $this->opts['tagfilter'] !== '' ) {
 149                                 $apiParams['tagfilter'] = $this->opts['tagfilter'];
 150                         }
 151                         if ( $this->opts['namespace'] !== '' ) {
 152                                 $apiParams['namespace'] = $this->opts['namespace'];
 153                         }
 154                         if ( $this->opts['year'] !== null ) {
 155                                 $apiParams['year'] = $this->opts['year'];
 156                         }
 157                         if ( $this->opts['month'] !== null ) {
 158                                 $apiParams['month'] = $this->opts['month'];
 159                         }
 160
 161                         $url = wfAppendQuery( wfScript( 'api' ), $apiParams );
 162
 163                         $out->redirect( $url, '301' );
 164
 165                         return;
 166                 }
 167
 168                 // Add RSS/atom links
 169                 $this->addFeedLinks( array( 'action' => 'feedcontributions', 'user' => $target ) );
 170
 171                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 172                         $out->addHTML( $this->getForm() );
 173
 174                         $pager = new ContribsPager( $this->getContext(), array(
 175                                 'target' => $target,
 176                                 'contribs' => $this->opts['contribs'],
 177                                 'namespace' => $this->opts['namespace'],
 178                                 'tagfilter' => $this->opts['tagfilter'],
 179                                 'year' => $this->opts['year'],
 180                                 'month' => $this->opts['month'],
 181                                 'deletedOnly' => $this->opts['deletedOnly'],
 182                                 'topOnly' => $this->opts['topOnly'],
 183                                 'nsInvert' => $this->opts['nsInvert'],
 184                                 'associated' => $this->opts['associated'],
 185                         ) );
 186
 187                         if ( !$pager->getNumRows() ) {
 188                                 $out->addWikiMsg( 'nocontribs', $target );
 189                         } else {
 190                                 # Show a message about slave lag, if applicable
 191                                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 192                                 if ( $lag > 0 ) {
 193                                         $out->showLagWarning( $lag );
 194                                 }
 195
 196                                 $out->addHTML(
 197                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 198                                                 $pager->getBody() .
 199                                                 '<p>' . $pager->getNavigationBar() . '</p>'
 200                                 );
 201                         }
 202                         $out->preventClickjacking( $pager->getPreventClickjacking() );
 203
 204                         # Show the appropriate "footer" message - WHOIS tools, etc.
 205                         if ( $this->opts['contribs'] == 'newbie' ) {
 206                                 $message = 'sp-contributions-footer-newbies';
 207                         } elseif ( IP::isIPAddress( $target ) ) {
 208                                 $message = 'sp-contributions-footer-anon';
 209                         } elseif ( $userObj->isAnon() ) {
 210                                 // No message for non-existing users
 211                                 $message = '';
 212                         } else {
 213                                 $message = 'sp-contributions-footer';
 214                         }
 215
 216                         if ( $message ) {
 217                                 if ( !$this->msg( $message, $target )->isDisabled() ) {
 218                                         $out->wrapWikiMsg(
 219                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 220                                                 array( $message, $target ) );
 221                                 }
 222                         }
 223                 }
 224         }
 225
 226         /**
 227          * Generates the subheading with links
 228          * @param $userObj User object for the target
 229          * @return String: appropriately-escaped HTML to be output literally
 230          * @todo FIXME: Almost the same as getSubTitle in SpecialDeletedContributions.php. Could be combined.
 231          */
 232         protected function contributionsSub( $userObj ) {
 233                 if ( $userObj->isAnon() ) {
 234                         $user = htmlspecialchars( $userObj->getName() );
 235                 } else {
 236                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 237                 }
 238                 $nt = $userObj->getUserPage();
 239                 $talk = $userObj->getTalkPage();
 240                 $links = '';
 241                 if ( $talk ) {
 242                         $tools = $this->getUserLinks( $nt, $talk, $userObj );
 243                         $links = $this->getLanguage()->pipeList( $tools );
 244
 245                         // Show a note if the user is blocked and display the last block log entry.
 246                         // Do not expose the autoblocks, since that may lead to a leak of accounts' IPs,
 247                         // and also this will display a totally irrelevant log entry as a current block.
 248                         if ( $userObj->isBlocked() && $userObj->getBlock()->getType() != Block::TYPE_AUTO ) {
 249                                 $out = $this->getOutput(); // showLogExtract() wants first parameter by reference
 250                                 LogEventsList::showLogExtract(
 251                                         $out,
 252                                         'block',
 253                                         $nt,
 254                                         '',
 255                                         array(
 256                                                 'lim' => 1,
 257                                                 'showIfEmpty' => false,
 258                                                 'msgKey' => array(
 259                                                         $userObj->isAnon() ?
 260                                                                 'sp-contributions-blocked-notice-anon' :
 261                                                                 'sp-contributions-blocked-notice',
 262                                                         $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 263                                                 ),
 264                                                 'offset' => '' # don't use WebRequest parameter offset
 265                                         )
 266                                 );
 267                         }
 268                 }
 269
 270                 // Old message 'contribsub' had one parameter, but that doesn't work for
 271                 // languages that want to put the "for" bit right after $user but before
 272                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 273                 // otherwise use 'contribsub2'.
 274                 // @todo Should this be removed at some point?
 275                 $oldMsg = $this->msg( 'contribsub' );
 276                 if ( $oldMsg->exists() ) {
 277                         $linksWithParentheses = $this->msg( 'parentheses' )->rawParams( $links )->escaped();
 278
 279                         return $oldMsg->rawParams( "$user $linksWithParentheses" );
 280                 }
 281
 282                 return $this->msg( 'contribsub2' )->rawParams( $user, $links );
 283         }
 284
 285         /**
 286          * Links to different places.
 287          * @param $userpage Title: Target user page
 288          * @param $talkpage Title: Talk page
 289          * @param $target User: Target user object
 290          * @return array
 291          */
 292         public function getUserLinks( Title $userpage, Title $talkpage, User $target ) {
 293
 294                 $id = $target->getId();
 295                 $username = $target->getName();
 296
 297                 $tools[] = Linker::link( $talkpage, $this->msg( 'sp-contributions-talk' )->escaped() );
 298
 299                 if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 300                         if ( $this->getUser()->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 301                                 if ( $target->isBlocked() && $target->getBlock()->getType() != Block::TYPE_AUTO ) {
 302                                         $tools[] = Linker::linkKnown( # Change block link
 303                                                 SpecialPage::getTitleFor( 'Block', $username ),
 304                                                 $this->msg( 'change-blocklink' )->escaped()
 305                                         );
 306                                         $tools[] = Linker::linkKnown( # Unblock link
 307                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 308                                                 $this->msg( 'unblocklink' )->escaped()
 309                                         );
 310                                 } else { # User is not blocked
 311                                         $tools[] = Linker::linkKnown( # Block link
 312                                                 SpecialPage::getTitleFor( 'Block', $username ),
 313                                                 $this->msg( 'blocklink' )->escaped()
 314                                         );
 315                                 }
 316                         }
 317
 318                         # Block log link
 319                         $tools[] = Linker::linkKnown(
 320                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 321                                 $this->msg( 'sp-contributions-blocklog' )->escaped(),
 322                                 array(),
 323                                 array( 'page' => $userpage->getPrefixedText() )
 324                         );
 325                 }
 326                 # Uploads
 327                 $tools[] = Linker::linkKnown(
 328                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 329                         $this->msg( 'sp-contributions-uploads' )->escaped()
 330                 );
 331
 332                 # Other logs link
 333                 $tools[] = Linker::linkKnown(
 334                         SpecialPage::getTitleFor( 'Log', $username ),
 335                         $this->msg( 'sp-contributions-logs' )->escaped()
 336                 );
 337
 338                 # Add link to deleted user contributions for priviledged users
 339                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 340                         $tools[] = Linker::linkKnown(
 341                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 342                                 $this->msg( 'sp-contributions-deleted' )->escaped()
 343                         );
 344                 }
 345
 346                 # Add a link to change user rights for privileged users
 347                 $userrightsPage = new UserrightsPage();
 348                 $userrightsPage->setContext( $this->getContext() );
 349                 if ( $userrightsPage->userCanChangeRights( $target ) ) {
 350                         $tools[] = Linker::linkKnown(
 351                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 352                                 $this->msg( 'sp-contributions-userrights' )->escaped()
 353                         );
 354                 }
 355
 356                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 357
 358                 return $tools;
 359         }
 360
 361         /**
 362          * Generates the namespace selector form with hidden attributes.
 363          * @return String: HTML fragment
 364          */
 365         protected function getForm() {
 366                 global $wgScript;
 367
 368                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 369                 if ( !isset( $this->opts['target'] ) ) {
 370                         $this->opts['target'] = '';
 371                 } else {
 372                         $this->opts['target'] = str_replace( '_', ' ', $this->opts['target'] );
 373                 }
 374
 375                 if ( !isset( $this->opts['namespace'] ) ) {
 376                         $this->opts['namespace'] = '';
 377                 }
 378
 379                 if ( !isset( $this->opts['nsInvert'] ) ) {
 380                         $this->opts['nsInvert'] = '';
 381                 }
 382
 383                 if ( !isset( $this->opts['associated'] ) ) {
 384                         $this->opts['associated'] = false;
 385                 }
 386
 387                 if ( !isset( $this->opts['contribs'] ) ) {
 388                         $this->opts['contribs'] = 'user';
 389                 }
 390
 391                 if ( !isset( $this->opts['year'] ) ) {
 392                         $this->opts['year'] = '';
 393                 }
 394
 395                 if ( !isset( $this->opts['month'] ) ) {
 396                         $this->opts['month'] = '';
 397                 }
 398
 399                 if ( $this->opts['contribs'] == 'newbie' ) {
 400                         $this->opts['target'] = '';
 401                 }
 402
 403                 if ( !isset( $this->opts['tagfilter'] ) ) {
 404                         $this->opts['tagfilter'] = '';
 405                 }
 406
 407                 if ( !isset( $this->opts['topOnly'] ) ) {
 408                         $this->opts['topOnly'] = false;
 409                 }
 410
 411                 $form = Html::openElement(
 412                         'form',
 413                         array(
 414                                 'method' => 'get',
 415                                 'action' => $wgScript,
 416                                 'class' => 'mw-contributions-form'
 417                         )
 418                 );
 419
 420                 # Add hidden params for tracking except for parameters in $skipParameters
 421                 $skipParameters = array(
 422                         'namespace',
 423                         'nsInvert',
 424                         'deletedOnly',
 425                         'target',
 426                         'contribs',
 427                         'year',
 428                         'month',
 429                         'topOnly',
 430                         'associated'
 431                 );
 432
 433                 foreach ( $this->opts as $name => $value ) {
 434                         if ( in_array( $name, $skipParameters ) ) {
 435                                 continue;
 436                         }
 437                         $form .= "\t" . Html::hidden( $name, $value ) . "\n";
 438                 }
 439
 440                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagfilter'] );
 441
 442                 if ( $tagFilter ) {
 443                         $filterSelection = Html::rawElement(
 444                                 'td',
 445                                 array( 'class' => 'mw-label' ),
 446                                 array_shift( $tagFilter )
 447                         );
 448                         $filterSelection .= Html::rawElement(
 449                                 'td',
 450                                 array( 'class' => 'mw-input' ),
 451                                 implode( '&#160', $tagFilter )
 452                         );
 453                 } else {
 454                         $filterSelection = Html::rawElement( 'td', array( 'colspan' => 2 ), '' );
 455                 }
 456
 457                 $labelNewbies = Xml::radioLabel(
 458                         $this->msg( 'sp-contributions-newbies' )->text(),
 459                         'contribs',
 460                         'newbie',
 461                         'newbie',
 462                         $this->opts['contribs'] == 'newbie',
 463                         array( 'class' => 'mw-input' )
 464                 );
 465                 $labelUsername = Xml::radioLabel(
 466                         $this->msg( 'sp-contributions-username' )->text(),
 467                         'contribs',
 468                         'user',
 469                         'user',
 470                         $this->opts['contribs'] == 'user',
 471                         array( 'class' => 'mw-input' )
 472                 );
 473                 $input = Html::input(
 474                         'target',
 475                         $this->opts['target'],
 476                         'text',
 477                         array( 'size' => '40', 'required' => '', 'class' => 'mw-input' ) +
 478                                 ( $this->opts['target'] ? array() : array( 'autofocus' )
 479                                 )
 480                 );
 481                 $targetSelection = Html::rawElement(
 482                         'td',
 483                         array( 'colspan' => 2 ),
 484                         $labelNewbies . '<br />' . $labelUsername . ' ' . $input . ' '
 485                 );
 486
 487                 $namespaceSelection = Xml::tags(
 488                         'td',
 489                         array( 'class' => 'mw-label' ),
 490                         Xml::label(
 491                                 $this->msg( 'namespace' )->text(),
 492                                 'namespace',
 493                                 ''
 494                         )
 495                 );
 496                 $namespaceSelection .= Html::rawElement(
 497                         'td',
 498                         null,
 499                         Html::namespaceSelector(
 500                                 array( 'selected' => $this->opts['namespace'], 'all' => '' ),
 501                                 array(
 502                                         'name' => 'namespace',
 503                                         'id' => 'namespace',
 504                                         'class' => 'namespaceselector',
 505                                 )
 506                         ) . '&#160;' .
 507                                 Html::rawElement(
 508                                         'span',
 509                                         array( 'style' => 'white-space: nowrap' ),
 510                                         Xml::checkLabel(
 511                                                 $this->msg( 'invert' )->text(),
 512                                                 'nsInvert',
 513                                                 'nsInvert',
 514                                                 $this->opts['nsInvert'],
 515                                                 array(
 516                                                         'title' => $this->msg( 'tooltip-invert' )->text(),
 517                                                         'class' => 'mw-input'
 518                                                 )
 519                                         ) . '&#160;'
 520                                 ) .
 521                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 522                                         Xml::checkLabel(
 523                                                 $this->msg( 'namespace_association' )->text(),
 524                                                 'associated',
 525                                                 'associated',
 526                                                 $this->opts['associated'],
 527                                                 array(
 528                                                         'title' => $this->msg( 'tooltip-namespace_association' )->text(),
 529                                                         'class' => 'mw-input'
 530                                                 )
 531                                         ) . '&#160;'
 532                                 )
 533                 );
 534
 535                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 536                         $deletedOnlyCheck = Html::rawElement(
 537                                 'span',
 538                                 array( 'style' => 'white-space: nowrap' ),
 539                                 Xml::checkLabel(
 540                                         $this->msg( 'history-show-deleted' )->text(),
 541                                         'deletedOnly',
 542                                         'mw-show-deleted-only',
 543                                         $this->opts['deletedOnly'],
 544                                         array( 'class' => 'mw-input' )
 545                                 )
 546                         );
 547                 } else {
 548                         $deletedOnlyCheck = '';
 549                 }
 550
 551                 $checkLabelTopOnly = Html::rawElement(
 552                         'span',
 553                         array( 'style' => 'white-space: nowrap' ),
 554                         Xml::checkLabel(
 555                                 $this->msg( 'sp-contributions-toponly' )->text(),
 556                                 'topOnly',
 557                                 'mw-show-top-only',
 558                                 $this->opts['topOnly'],
 559                                 array( 'class' => 'mw-input' )
 560                         )
 561                 );
 562                 $extraOptions = Html::rawElement(
 563                         'td',
 564                         array( 'colspan' => 2 ),
 565                         $deletedOnlyCheck . $checkLabelTopOnly
 566                 );
 567
 568                 $dateSelectionAndSubmit = Xml::tags( 'td', array( 'colspan' => 2 ),
 569                         Xml::dateMenu(
 570                                 $this->opts['year'] === '' ? MWTimestamp::getInstance()->format( 'Y' ) : $this->opts['year'],
 571                                 $this->opts['month']
 572                         ) . ' ' .
 573                                 Xml::submitButton(
 574                                         $this->msg( 'sp-contributions-submit' )->text(),
 575                                         array( 'class' => 'mw-submit' )
 576                                 )
 577                 );
 578
 579                 $form .= Xml::fieldset( $this->msg( 'sp-contributions-search' )->text() );
 580                 $form .= Html::rawElement( 'table', array( 'class' => 'mw-contributions-table' ), "\n" .
 581                         Html::rawElement( 'tr', array(), $targetSelection ) . "\n" .
 582                         Html::rawElement( 'tr', array(), $namespaceSelection ) . "\n" .
 583                         Html::rawElement( 'tr', array(), $filterSelection ) . "\n" .
 584                         Html::rawElement( 'tr', array(), $extraOptions ) . "\n" .
 585                         Html::rawElement( 'tr', array(), $dateSelectionAndSubmit ) . "\n"
 586                 );
 587
 588                 $explain = $this->msg( 'sp-contributions-explain' );
 589                 if ( !$explain->isBlank() ) {
 590                         $form .= "<p id='mw-sp-contributions-explain'>{$explain->parse()}</p>";
 591                 }
 592
 593                 $form .= Xml::closeElement( 'fieldset' ) . Xml::closeElement( 'form' );
 594
 595                 return $form;
 596         }
 597
 598         protected function getGroupName() {
 599                 return 'users';
 600         }
 601 }
 602
 603 /**
 604  * Pager for Special:Contributions
 605  * @ingroup SpecialPage Pager
 606  */
 607 class ContribsPager extends ReverseChronologicalPager {
 608         public $mDefaultDirection = true;
 609         var $messages, $target;
 610         var $namespace = '', $mDb;
 611         var $preventClickjacking = false;
 612
 613         /**
 614          * @var array
 615          */
 616         protected $mParentLens;
 617
 618         function __construct( IContextSource $context, array $options ) {
 619                 parent::__construct( $context );
 620
 621                 $msgs = array(
 622                         'diff',
 623                         'hist',
 624                         'newarticle',
 625                         'pipe-separator',
 626                         'rev-delundel',
 627                         'rollbacklink',
 628                         'uctop'
 629                 );
 630
 631                 foreach ( $msgs as $msg ) {
 632                         $this->messages[$msg] = $this->msg( $msg )->escaped();
 633                 }
 634
 635                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 636                 $this->contribs = isset( $options['contribs'] ) ? $options['contribs'] : 'users';
 637                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 638                 $this->tagFilter = isset( $options['tagfilter'] ) ? $options['tagfilter'] : false;
 639                 $this->nsInvert = isset( $options['nsInvert'] ) ? $options['nsInvert'] : false;
 640                 $this->associated = isset( $options['associated'] ) ? $options['associated'] : false;
 641
 642                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 643                 $this->topOnly = !empty( $options['topOnly'] );
 644
 645                 $year = isset( $options['year'] ) ? $options['year'] : false;
 646                 $month = isset( $options['month'] ) ? $options['month'] : false;
 647                 $this->getDateCond( $year, $month );
 648
 649                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 650         }
 651
 652         function getDefaultQuery() {
 653                 $query = parent::getDefaultQuery();
 654                 $query['target'] = $this->target;
 655
 656                 return $query;
 657         }
 658
 659         /**
 660          * This method basically executes the exact same code as the parent class, though with
 661          * a hook added, to allow extentions to add additional queries.
 662          *
 663          * @param string $offset index offset, inclusive
 664          * @param $limit Integer: exact query limit
 665          * @param $descending Boolean: query direction, false for ascending, true for descending
 666          * @return ResultWrapper
 667          */
 668         function reallyDoQuery( $offset, $limit, $descending ) {
 669                 list( $tables, $fields, $conds, $fname, $options, $join_conds ) = $this->buildQueryInfo(
 670                         $offset,
 671                         $limit,
 672                         $descending
 673                 );
 674                 $pager = $this;
 675
 676                 /*
 677                  * This hook will allow extensions to add in additional queries, so they can get their data
 678                  * in My Contributions as well. Extensions should append their results to the $data array.
 679                  *
 680                  * Extension queries have to implement the navbar requirement as well. They should
 681                  * - have a column aliased as $pager->getIndexField()
 682                  * - have LIMIT set
 683                  * - have a WHERE-clause that compares the $pager->getIndexField()-equivalent column to the offset
 684                  * - have the ORDER BY specified based upon the details provided by the navbar
 685                  *
 686                  * See includes/Pager.php buildQueryInfo() method on how to build LIMIT, WHERE & ORDER BY
 687                  *
 688                  * &$data: an array of results of all contribs queries
 689                  * $pager: the ContribsPager object hooked into
 690                  * $offset: see phpdoc above
 691                  * $limit: see phpdoc above
 692                  * $descending: see phpdoc above
 693                  */
 694                 $data = array( $this->mDb->select( $tables, $fields, $conds, $fname, $options, $join_conds ) );
 695                 wfRunHooks( 'ContribsPager::reallyDoQuery', array( &$data, $pager, $offset, $limit, $descending ) );
 696
 697                 $result = array();
 698
 699                 // loop all results and collect them in an array
 700                 foreach ( $data as $query ) {
 701                         foreach ( $query as $i => $row ) {
 702                                 // use index column as key, allowing us to easily sort in PHP
 703                                 $result[$row->{$this->getIndexField()} . "-$i"] = $row;
 704                         }
 705                 }
 706
 707                 // sort results
 708                 if ( $descending ) {
 709                         ksort( $result );
 710                 } else {
 711                         krsort( $result );
 712                 }
 713
 714                 // enforce limit
 715                 $result = array_slice( $result, 0, $limit );
 716
 717                 // get rid of array keys
 718                 $result = array_values( $result );
 719
 720                 return new FakeResultWrapper( $result );
 721         }
 722
 723         function getQueryInfo() {
 724                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 725
 726                 $user = $this->getUser();
 727                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 728
 729                 // Paranoia: avoid brute force searches (bug 17342)
 730                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 731                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0';
 732                 } elseif ( !$user->isAllowed( 'suppressrevision' ) ) {
 733                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::SUPPRESSED_USER ) .
 734                                 ' != ' . Revision::SUPPRESSED_USER;
 735                 }
 736
 737                 # Don't include orphaned revisions
 738                 $join_cond['page'] = Revision::pageJoinCond();
 739                 # Get the current user name for accounts
 740                 $join_cond['user'] = Revision::userJoinCond();
 741
 742                 $queryInfo = array(
 743                         'tables' => $tables,
 744                         'fields' => array_merge(
 745                                 Revision::selectFields(),
 746                                 Revision::selectUserFields(),
 747                                 array( 'page_namespace', 'page_title', 'page_is_new',
 748                                         'page_latest', 'page_is_redirect', 'page_len' )
 749                         ),
 750                         'conds' => $conds,
 751                         'options' => array( 'USE INDEX' => array( 'revision' => $index ) ),
 752                         'join_conds' => $join_cond
 753                 );
 754
 755                 ChangeTags::modifyDisplayQuery(
 756                         $queryInfo['tables'],
 757                         $queryInfo['fields'],
 758                         $queryInfo['conds'],
 759                         $queryInfo['join_conds'],
 760                         $queryInfo['options'],
 761                         $this->tagFilter
 762                 );
 763
 764                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 765
 766                 return $queryInfo;
 767         }
 768
 769         function getUserCond() {
 770                 $condition = array();
 771                 $join_conds = array();
 772                 $tables = array( 'revision', 'page', 'user' );
 773                 if ( $this->contribs == 'newbie' ) {
 774                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 775                         $condition[] = 'rev_user >' . (int)( $max - $max / 100 );
 776                         $index = 'user_timestamp';
 777                         # ignore local groups with the bot right
 778                         # @todo FIXME: Global groups may have 'bot' rights
 779                         $groupsWithBotPermission = User::getGroupsWithPermission( 'bot' );
 780                         if ( count( $groupsWithBotPermission ) ) {
 781                                 $tables[] = 'user_groups';
 782                                 $condition[] = 'ug_group IS NULL';
 783                                 $join_conds['user_groups'] = array(
 784                                         'LEFT JOIN', array(
 785                                                 'ug_user = rev_user',
 786                                                 'ug_group' => $groupsWithBotPermission
 787                                         )
 788                                 );
 789                         }
 790                 } else {
 791                         $uid = User::idFromName( $this->target );
 792                         if ( $uid ) {
 793                                 $condition['rev_user'] = $uid;
 794                                 $index = 'user_timestamp';
 795                         } else {
 796                                 $condition['rev_user_text'] = $this->target;
 797                                 $index = 'usertext_timestamp';
 798                         }
 799                 }
 800
 801                 if ( $this->deletedOnly ) {
 802                         $condition[] = 'rev_deleted != 0';
 803                 }
 804
 805                 if ( $this->topOnly ) {
 806                         $condition[] = 'rev_id = page_latest';
 807                 }
 808
 809                 return array( $tables, $index, $condition, $join_conds );
 810         }
 811
 812         function getNamespaceCond() {
 813                 if ( $this->namespace !== '' ) {
 814                         $selectedNS = $this->mDb->addQuotes( $this->namespace );
 815                         $eq_op = $this->nsInvert ? '!=' : '=';
 816                         $bool_op = $this->nsInvert ? 'AND' : 'OR';
 817
 818                         if ( !$this->associated ) {
 819                                 return array( "page_namespace $eq_op $selectedNS" );
 820                         }
 821
 822                         $associatedNS = $this->mDb->addQuotes(
 823                                 MWNamespace::getAssociated( $this->namespace )
 824                         );
 825
 826                         return array(
 827                                 "page_namespace $eq_op $selectedNS " .
 828                                         $bool_op .
 829                                         " page_namespace $eq_op $associatedNS"
 830                         );
 831                 }
 832
 833                 return array();
 834         }
 835
 836         function getIndexField() {
 837                 return 'rev_timestamp';
 838         }
 839
 840         function doBatchLookups() {
 841                 # Do a link batch query
 842                 $this->mResult->seek( 0 );
 843                 $revIds = array();
 844                 $batch = new LinkBatch();
 845                 # Give some pointers to make (last) links
 846                 foreach ( $this->mResult as $row ) {
 847                         if ( isset( $row->rev_parent_id ) && $row->rev_parent_id ) {
 848                                 $revIds[] = $row->rev_parent_id;
 849                         }
 850                         if ( isset( $row->rev_id ) ) {
 851                                 if ( $this->contribs === 'newbie' ) { // multiple users
 852                                         $batch->add( NS_USER, $row->user_name );
 853                                         $batch->add( NS_USER_TALK, $row->user_name );
 854                                 }
 855                                 $batch->add( $row->page_namespace, $row->page_title );
 856                         }
 857                 }
 858                 $this->mParentLens = Revision::getParentLengths( $this->getDatabase(), $revIds );
 859                 $batch->execute();
 860                 $this->mResult->seek( 0 );
 861         }
 862
 863         /**
 864          * @return string
 865          */
 866         function getStartBody() {
 867                 return "<ul>\n";
 868         }
 869
 870         /**
 871          * @return string
 872          */
 873         function getEndBody() {
 874                 return "</ul>\n";
 875         }
 876
 877         /**
 878          * Generates each row in the contributions list.
 879          *
 880          * Contributions which are marked "top" are currently on top of the history.
 881          * For these contributions, a [rollback] link is shown for users with roll-
 882          * back privileges. The rollback link restores the most recent version that
 883          * was not written by the target user.
 884          *
 885          * @todo This would probably look a lot nicer in a table.
 886          * @param $row
 887          * @return string
 888          */
 889         function formatRow( $row ) {
 890                 wfProfileIn( __METHOD__ );
 891
 892                 $ret = '';
 893                 $classes = array();
 894
 895                 /*
 896                  * There may be more than just revision rows. To make sure that we'll only be processing
 897                  * revisions here, let's _try_ to build a revision out of our row (without displaying
 898                  * notices though) and then trying to grab data from the built object. If we succeed,
 899                  * we're definitely dealing with revision data and we may proceed, if not, we'll leave it
 900                  * to extensions to subscribe to the hook to parse the row.
 901                  */
 902                 wfSuppressWarnings();
 903                 $rev = new Revision( $row );
 904                 $validRevision = (bool)$rev->getId();
 905                 wfRestoreWarnings();
 906
 907                 if ( $validRevision ) {
 908                         $classes = array();
 909
 910                         $page = Title::newFromRow( $row );
 911                         $link = Linker::link(
 912                                 $page,
 913                                 htmlspecialchars( $page->getPrefixedText() ),
 914                                 array( 'class' => 'mw-contributions-title' ),
 915                                 $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 916                         );
 917                         # Mark current revisions
 918                         $topmarktext = '';
 919                         $user = $this->getUser();
 920                         if ( $row->rev_id == $row->page_latest ) {
 921                                 $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 922                                 # Add rollback link
 923                                 if ( !$row->page_is_new && $page->quickUserCan( 'rollback', $user )
 924                                         && $page->quickUserCan( 'edit', $user )
 925                                 ) {
 926                                         $this->preventClickjacking();
 927                                         $topmarktext .= ' ' . Linker::generateRollback( $rev, $this->getContext() );
 928                                 }
 929                         }
 930                         # Is there a visible previous revision?
 931                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) && $rev->getParentId() !== 0 ) {
 932                                 $difftext = Linker::linkKnown(
 933                                         $page,
 934                                         $this->messages['diff'],
 935                                         array(),
 936                                         array(
 937                                                 'diff' => 'prev',
 938                                                 'oldid' => $row->rev_id
 939                                         )
 940                                 );
 941                         } else {
 942                                 $difftext = $this->messages['diff'];
 943                         }
 944                         $histlink = Linker::linkKnown(
 945                                 $page,
 946                                 $this->messages['hist'],
 947                                 array(),
 948                                 array( 'action' => 'history' )
 949                         );
 950
 951                         if ( $row->rev_parent_id === null ) {
 952                                 // For some reason rev_parent_id isn't populated for this row.
 953                                 // Its rumoured this is true on wikipedia for some revisions (bug 34922).
 954                                 // Next best thing is to have the total number of bytes.
 955                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
 956                                 $chardiff .= Linker::formatRevisionSize( $row->rev_len );
 957                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
 958                         } else {
 959                                 $parentLen = isset( $this->mParentLens[$row->rev_parent_id] ) ? $this->mParentLens[$row->rev_parent_id] : 0;
 960                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
 961                                 $chardiff .= ChangesList::showCharacterDifference(
 962                                         $parentLen,
 963                                         $row->rev_len,
 964                                         $this->getContext()
 965                                 );
 966                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
 967                         }
 968
 969                         $lang = $this->getLanguage();
 970                         $comment = $lang->getDirMark() . Linker::revComment( $rev, false, true );
 971                         $date = $lang->userTimeAndDate( $row->rev_timestamp, $user );
 972                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) ) {
 973                                 $d = Linker::linkKnown(
 974                                         $page,
 975                                         htmlspecialchars( $date ),
 976                                         array( 'class' => 'mw-changeslist-date' ),
 977                                         array( 'oldid' => intval( $row->rev_id ) )
 978                                 );
 979                         } else {
 980                                 $d = htmlspecialchars( $date );
 981                         }
 982                         if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 983                                 $d = '<span class="history-deleted">' . $d . '</span>';
 984                         }
 985
 986                         # Show user names for /newbies as there may be different users.
 987                         # Note that we already excluded rows with hidden user names.
 988                         if ( $this->contribs == 'newbie' ) {
 989                                 $userlink = ' . . ' . Linker::userLink( $rev->getUser(), $rev->getUserText() );
 990                                 $userlink .= ' ' . $this->msg( 'parentheses' )->rawParams(
 991                                         Linker::userTalkLink( $rev->getUser(), $rev->getUserText() ) )->escaped() . ' ';
 992                         } else {
 993                                 $userlink = '';
 994                         }
 995
 996                         if ( $rev->getParentId() === 0 ) {
 997                                 $nflag = ChangesList::flag( 'newpage' );
 998                         } else {
 999                                 $nflag = '';
1000                         }
1001
1002                         if ( $rev->isMinor() ) {
1003                                 $mflag = ChangesList::flag( 'minor' );
1004                         } else {
1005                                 $mflag = '';
1006                         }
1007
1008                         $del = Linker::getRevDeleteLink( $user, $rev, $page );
1009                         if ( $del !== '' ) {
1010                                 $del .= ' ';
1011                         }
1012
1013                         $diffHistLinks = $this->msg( 'parentheses' )
1014                                 ->rawParams( $difftext . $this->messages['pipe-separator'] . $histlink )
1015                                 ->escaped();
1016                         $ret = "{$del}{$d} {$diffHistLinks}{$chardiff}{$nflag}{$mflag} {$link}{$userlink} {$comment} {$topmarktext}";
1017
1018                         # Denote if username is redacted for this edit
1019                         if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
1020                                 $ret .= " <strong>" . $this->msg( 'rev-deleted-user-contribs' )->escaped() . "</strong>";
1021                         }
1022
1023                         # Tags, if any.
1024                         list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow(
1025                                 $row->ts_tags,
1026                                 'contributions'
1027                         );
1028                         $classes = array_merge( $classes, $newClasses );
1029                         $ret .= " $tagSummary";
1030                 }
1031
1032                 // Let extensions add data
1033                 wfRunHooks( 'ContributionsLineEnding', array( $this, &$ret, $row, &$classes ) );
1034
1035                 if ( $classes === array() && $ret === '' ) {
1036                         wfDebug( 'Dropping Special:Contribution row that could not be formatted' );
1037                         $ret = "<!-- Could not format Special:Contribution row. -->\n";
1038                 } else {
1039                         $ret = Html::rawElement( 'li', array( 'class' => $classes ), $ret ) . "\n";
1040                 }
1041
1042                 wfProfileOut( __METHOD__ );
1043
1044                 return $ret;
1045         }
1046
1047         /**
1048          * Overwrite Pager function and return a helpful comment
1049          * @return string
1050          */
1051         function getSqlComment() {
1052                 if ( $this->namespace || $this->deletedOnly ) {
1053                         // potentially slow, see CR r58153
1054                         return 'contributions page filtered for namespace or RevisionDeleted edits';
1055                 } else {
1056                         return 'contributions page unfiltered';
1057                 }
1058         }
1059
1060         protected function preventClickjacking() {
1061                 $this->preventClickjacking = true;
1062         }
1063
1064         /**
1065          * @return bool
1066          */
1067         public function getPreventClickjacking() {
1068                 return $this->preventClickjacking;
1069         }
1070 }