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.
 231          * Could be combined.
 232          */
 233         protected function contributionsSub( $userObj ) {
 234                 if ( $userObj->isAnon() ) {
 235                         $user = htmlspecialchars( $userObj->getName() );
 236                 } else {
 237                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 238                 }
 239                 $nt = $userObj->getUserPage();
 240                 $talk = $userObj->getTalkPage();
 241                 $links = '';
 242                 if ( $talk ) {
 243                         $tools = $this->getUserLinks( $nt, $talk, $userObj );
 244                         $links = $this->getLanguage()->pipeList( $tools );
 245
 246                         // Show a note if the user is blocked and display the last block log entry.
 247                         // Do not expose the autoblocks, since that may lead to a leak of accounts' IPs,
 248                         // and also this will display a totally irrelevant log entry as a current block.
 249                         if ( $userObj->isBlocked() && $userObj->getBlock()->getType() != Block::TYPE_AUTO ) {
 250                                 $out = $this->getOutput(); // showLogExtract() wants first parameter by reference
 251                                 LogEventsList::showLogExtract(
 252                                         $out,
 253                                         'block',
 254                                         $nt,
 255                                         '',
 256                                         array(
 257                                                 'lim' => 1,
 258                                                 'showIfEmpty' => false,
 259                                                 'msgKey' => array(
 260                                                         $userObj->isAnon() ?
 261                                                                 'sp-contributions-blocked-notice-anon' :
 262                                                                 'sp-contributions-blocked-notice',
 263                                                         $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 264                                                 ),
 265                                                 'offset' => '' # don't use WebRequest parameter offset
 266                                         )
 267                                 );
 268                         }
 269                 }
 270
 271                 return $this->msg( 'contribsub2' )->rawParams( $user, $links )->params( $userObj->getName() );
 272         }
 273
 274         /**
 275          * Links to different places.
 276          * @param $userpage Title: Target user page
 277          * @param $talkpage Title: Talk page
 278          * @param $target User: Target user object
 279          * @return array
 280          */
 281         public function getUserLinks( Title $userpage, Title $talkpage, User $target ) {
 282
 283                 $id = $target->getId();
 284                 $username = $target->getName();
 285
 286                 $tools[] = Linker::link( $talkpage, $this->msg( 'sp-contributions-talk' )->escaped() );
 287
 288                 if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 289                         if ( $this->getUser()->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 290                                 if ( $target->isBlocked() && $target->getBlock()->getType() != Block::TYPE_AUTO ) {
 291                                         $tools[] = Linker::linkKnown( # Change block link
 292                                                 SpecialPage::getTitleFor( 'Block', $username ),
 293                                                 $this->msg( 'change-blocklink' )->escaped()
 294                                         );
 295                                         $tools[] = Linker::linkKnown( # Unblock link
 296                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 297                                                 $this->msg( 'unblocklink' )->escaped()
 298                                         );
 299                                 } else { # User is not blocked
 300                                         $tools[] = Linker::linkKnown( # Block link
 301                                                 SpecialPage::getTitleFor( 'Block', $username ),
 302                                                 $this->msg( 'blocklink' )->escaped()
 303                                         );
 304                                 }
 305                         }
 306
 307                         # Block log link
 308                         $tools[] = Linker::linkKnown(
 309                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 310                                 $this->msg( 'sp-contributions-blocklog' )->escaped(),
 311                                 array(),
 312                                 array( 'page' => $userpage->getPrefixedText() )
 313                         );
 314                 }
 315                 # Uploads
 316                 $tools[] = Linker::linkKnown(
 317                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 318                         $this->msg( 'sp-contributions-uploads' )->escaped()
 319                 );
 320
 321                 # Other logs link
 322                 $tools[] = Linker::linkKnown(
 323                         SpecialPage::getTitleFor( 'Log', $username ),
 324                         $this->msg( 'sp-contributions-logs' )->escaped()
 325                 );
 326
 327                 # Add link to deleted user contributions for priviledged users
 328                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 329                         $tools[] = Linker::linkKnown(
 330                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 331                                 $this->msg( 'sp-contributions-deleted' )->escaped()
 332                         );
 333                 }
 334
 335                 # Add a link to change user rights for privileged users
 336                 $userrightsPage = new UserrightsPage();
 337                 $userrightsPage->setContext( $this->getContext() );
 338                 if ( $userrightsPage->userCanChangeRights( $target ) ) {
 339                         $tools[] = Linker::linkKnown(
 340                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 341                                 $this->msg( 'sp-contributions-userrights' )->escaped()
 342                         );
 343                 }
 344
 345                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 346
 347                 return $tools;
 348         }
 349
 350         /**
 351          * Generates the namespace selector form with hidden attributes.
 352          * @return String: HTML fragment
 353          */
 354         protected function getForm() {
 355                 global $wgScript;
 356
 357                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 358                 if ( !isset( $this->opts['target'] ) ) {
 359                         $this->opts['target'] = '';
 360                 } else {
 361                         $this->opts['target'] = str_replace( '_', ' ', $this->opts['target'] );
 362                 }
 363
 364                 if ( !isset( $this->opts['namespace'] ) ) {
 365                         $this->opts['namespace'] = '';
 366                 }
 367
 368                 if ( !isset( $this->opts['nsInvert'] ) ) {
 369                         $this->opts['nsInvert'] = '';
 370                 }
 371
 372                 if ( !isset( $this->opts['associated'] ) ) {
 373                         $this->opts['associated'] = false;
 374                 }
 375
 376                 if ( !isset( $this->opts['contribs'] ) ) {
 377                         $this->opts['contribs'] = 'user';
 378                 }
 379
 380                 if ( !isset( $this->opts['year'] ) ) {
 381                         $this->opts['year'] = '';
 382                 }
 383
 384                 if ( !isset( $this->opts['month'] ) ) {
 385                         $this->opts['month'] = '';
 386                 }
 387
 388                 if ( $this->opts['contribs'] == 'newbie' ) {
 389                         $this->opts['target'] = '';
 390                 }
 391
 392                 if ( !isset( $this->opts['tagfilter'] ) ) {
 393                         $this->opts['tagfilter'] = '';
 394                 }
 395
 396                 if ( !isset( $this->opts['topOnly'] ) ) {
 397                         $this->opts['topOnly'] = false;
 398                 }
 399
 400                 $form = Html::openElement(
 401                         'form',
 402                         array(
 403                                 'method' => 'get',
 404                                 'action' => $wgScript,
 405                                 'class' => 'mw-contributions-form'
 406                         )
 407                 );
 408
 409                 # Add hidden params for tracking except for parameters in $skipParameters
 410                 $skipParameters = array(
 411                         'namespace',
 412                         'nsInvert',
 413                         'deletedOnly',
 414                         'target',
 415                         'contribs',
 416                         'year',
 417                         'month',
 418                         'topOnly',
 419                         'associated'
 420                 );
 421
 422                 foreach ( $this->opts as $name => $value ) {
 423                         if ( in_array( $name, $skipParameters ) ) {
 424                                 continue;
 425                         }
 426                         $form .= "\t" . Html::hidden( $name, $value ) . "\n";
 427                 }
 428
 429                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagfilter'] );
 430
 431                 if ( $tagFilter ) {
 432                         $filterSelection = Html::rawElement(
 433                                 'td',
 434                                 array( 'class' => 'mw-label' ),
 435                                 array_shift( $tagFilter )
 436                         );
 437                         $filterSelection .= Html::rawElement(
 438                                 'td',
 439                                 array( 'class' => 'mw-input' ),
 440                                 implode( '&#160', $tagFilter )
 441                         );
 442                 } else {
 443                         $filterSelection = Html::rawElement( 'td', array( 'colspan' => 2 ), '' );
 444                 }
 445
 446                 $labelNewbies = Xml::radioLabel(
 447                         $this->msg( 'sp-contributions-newbies' )->text(),
 448                         'contribs',
 449                         'newbie',
 450                         'newbie',
 451                         $this->opts['contribs'] == 'newbie',
 452                         array( 'class' => 'mw-input' )
 453                 );
 454                 $labelUsername = Xml::radioLabel(
 455                         $this->msg( 'sp-contributions-username' )->text(),
 456                         'contribs',
 457                         'user',
 458                         'user',
 459                         $this->opts['contribs'] == 'user',
 460                         array( 'class' => 'mw-input' )
 461                 );
 462                 $input = Html::input(
 463                         'target',
 464                         $this->opts['target'],
 465                         'text',
 466                         array( 'size' => '40', 'required' => '', 'class' => 'mw-input' ) +
 467                                 ( $this->opts['target'] ? array() : array( 'autofocus' )
 468                                 )
 469                 );
 470                 $targetSelection = Html::rawElement(
 471                         'td',
 472                         array( 'colspan' => 2 ),
 473                         $labelNewbies . '<br />' . $labelUsername . ' ' . $input . ' '
 474                 );
 475
 476                 $namespaceSelection = Xml::tags(
 477                         'td',
 478                         array( 'class' => 'mw-label' ),
 479                         Xml::label(
 480                                 $this->msg( 'namespace' )->text(),
 481                                 'namespace',
 482                                 ''
 483                         )
 484                 );
 485                 $namespaceSelection .= Html::rawElement(
 486                         'td',
 487                         null,
 488                         Html::namespaceSelector(
 489                                 array( 'selected' => $this->opts['namespace'], 'all' => '' ),
 490                                 array(
 491                                         'name' => 'namespace',
 492                                         'id' => 'namespace',
 493                                         'class' => 'namespaceselector',
 494                                 )
 495                         ) . '&#160;' .
 496                                 Html::rawElement(
 497                                         'span',
 498                                         array( 'style' => 'white-space: nowrap' ),
 499                                         Xml::checkLabel(
 500                                                 $this->msg( 'invert' )->text(),
 501                                                 'nsInvert',
 502                                                 'nsInvert',
 503                                                 $this->opts['nsInvert'],
 504                                                 array(
 505                                                         'title' => $this->msg( 'tooltip-invert' )->text(),
 506                                                         'class' => 'mw-input'
 507                                                 )
 508                                         ) . '&#160;'
 509                                 ) .
 510                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 511                                         Xml::checkLabel(
 512                                                 $this->msg( 'namespace_association' )->text(),
 513                                                 'associated',
 514                                                 'associated',
 515                                                 $this->opts['associated'],
 516                                                 array(
 517                                                         'title' => $this->msg( 'tooltip-namespace_association' )->text(),
 518                                                         'class' => 'mw-input'
 519                                                 )
 520                                         ) . '&#160;'
 521                                 )
 522                 );
 523
 524                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 525                         $deletedOnlyCheck = Html::rawElement(
 526                                 'span',
 527                                 array( 'style' => 'white-space: nowrap' ),
 528                                 Xml::checkLabel(
 529                                         $this->msg( 'history-show-deleted' )->text(),
 530                                         'deletedOnly',
 531                                         'mw-show-deleted-only',
 532                                         $this->opts['deletedOnly'],
 533                                         array( 'class' => 'mw-input' )
 534                                 )
 535                         );
 536                 } else {
 537                         $deletedOnlyCheck = '';
 538                 }
 539
 540                 $checkLabelTopOnly = Html::rawElement(
 541                         'span',
 542                         array( 'style' => 'white-space: nowrap' ),
 543                         Xml::checkLabel(
 544                                 $this->msg( 'sp-contributions-toponly' )->text(),
 545                                 'topOnly',
 546                                 'mw-show-top-only',
 547                                 $this->opts['topOnly'],
 548                                 array( 'class' => 'mw-input' )
 549                         )
 550                 );
 551                 $extraOptions = Html::rawElement(
 552                         'td',
 553                         array( 'colspan' => 2 ),
 554                         $deletedOnlyCheck . $checkLabelTopOnly
 555                 );
 556
 557                 $dateSelectionAndSubmit = Xml::tags( 'td', array( 'colspan' => 2 ),
 558                         Xml::dateMenu(
 559                                 $this->opts['year'] === '' ? MWTimestamp::getInstance()->format( 'Y' ) : $this->opts['year'],
 560                                 $this->opts['month']
 561                         ) . ' ' .
 562                                 Xml::submitButton(
 563                                         $this->msg( 'sp-contributions-submit' )->text(),
 564                                         array( 'class' => 'mw-submit' )
 565                                 )
 566                 );
 567
 568                 $form .= Xml::fieldset( $this->msg( 'sp-contributions-search' )->text() );
 569                 $form .= Html::rawElement( 'table', array( 'class' => 'mw-contributions-table' ), "\n" .
 570                         Html::rawElement( 'tr', array(), $targetSelection ) . "\n" .
 571                         Html::rawElement( 'tr', array(), $namespaceSelection ) . "\n" .
 572                         Html::rawElement( 'tr', array(), $filterSelection ) . "\n" .
 573                         Html::rawElement( 'tr', array(), $extraOptions ) . "\n" .
 574                         Html::rawElement( 'tr', array(), $dateSelectionAndSubmit ) . "\n"
 575                 );
 576
 577                 $explain = $this->msg( 'sp-contributions-explain' );
 578                 if ( !$explain->isBlank() ) {
 579                         $form .= "<p id='mw-sp-contributions-explain'>{$explain->parse()}</p>";
 580                 }
 581
 582                 $form .= Xml::closeElement( 'fieldset' ) . Xml::closeElement( 'form' );
 583
 584                 return $form;
 585         }
 586
 587         protected function getGroupName() {
 588                 return 'users';
 589         }
 590 }
 591
 592 /**
 593  * Pager for Special:Contributions
 594  * @ingroup SpecialPage Pager
 595  */
 596 class ContribsPager extends ReverseChronologicalPager {
 597         public $mDefaultDirection = true;
 598         public $messages;
 599         public $target;
 600         public $namespace = '';
 601         public $mDb;
 602         public $preventClickjacking = false;
 603
 604         /**
 605          * @var array
 606          */
 607         protected $mParentLens;
 608
 609         function __construct( IContextSource $context, array $options ) {
 610                 parent::__construct( $context );
 611
 612                 $msgs = array(
 613                         'diff',
 614                         'hist',
 615                         'newarticle',
 616                         'pipe-separator',
 617                         'rev-delundel',
 618                         'rollbacklink',
 619                         'uctop'
 620                 );
 621
 622                 foreach ( $msgs as $msg ) {
 623                         $this->messages[$msg] = $this->msg( $msg )->escaped();
 624                 }
 625
 626                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 627                 $this->contribs = isset( $options['contribs'] ) ? $options['contribs'] : 'users';
 628                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 629                 $this->tagFilter = isset( $options['tagfilter'] ) ? $options['tagfilter'] : false;
 630                 $this->nsInvert = isset( $options['nsInvert'] ) ? $options['nsInvert'] : false;
 631                 $this->associated = isset( $options['associated'] ) ? $options['associated'] : false;
 632
 633                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 634                 $this->topOnly = !empty( $options['topOnly'] );
 635
 636                 $year = isset( $options['year'] ) ? $options['year'] : false;
 637                 $month = isset( $options['month'] ) ? $options['month'] : false;
 638                 $this->getDateCond( $year, $month );
 639
 640                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 641         }
 642
 643         function getDefaultQuery() {
 644                 $query = parent::getDefaultQuery();
 645                 $query['target'] = $this->target;
 646
 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(
 686                         $tables, $fields, $conds, $fname, $options, $join_conds
 687                 ) );
 688                 wfRunHooks(
 689                         'ContribsPager::reallyDoQuery',
 690                         array( &$data, $pager, $offset, $limit, $descending )
 691                 );
 692
 693                 $result = array();
 694
 695                 // loop all results and collect them in an array
 696                 foreach ( $data as $query ) {
 697                         foreach ( $query as $i => $row ) {
 698                                 // use index column as key, allowing us to easily sort in PHP
 699                                 $result[$row->{$this->getIndexField()} . "-$i"] = $row;
 700                         }
 701                 }
 702
 703                 // sort results
 704                 if ( $descending ) {
 705                         ksort( $result );
 706                 } else {
 707                         krsort( $result );
 708                 }
 709
 710                 // enforce limit
 711                 $result = array_slice( $result, 0, $limit );
 712
 713                 // get rid of array keys
 714                 $result = array_values( $result );
 715
 716                 return new FakeResultWrapper( $result );
 717         }
 718
 719         function getQueryInfo() {
 720                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 721
 722                 $user = $this->getUser();
 723                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 724
 725                 // Paranoia: avoid brute force searches (bug 17342)
 726                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 727                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0';
 728                 } elseif ( !$user->isAllowed( 'suppressrevision' ) ) {
 729                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::SUPPRESSED_USER ) .
 730                                 ' != ' . Revision::SUPPRESSED_USER;
 731                 }
 732
 733                 # Don't include orphaned revisions
 734                 $join_cond['page'] = Revision::pageJoinCond();
 735                 # Get the current user name for accounts
 736                 $join_cond['user'] = Revision::userJoinCond();
 737
 738                 $queryInfo = array(
 739                         'tables' => $tables,
 740                         'fields' => array_merge(
 741                                 Revision::selectFields(),
 742                                 Revision::selectUserFields(),
 743                                 array( 'page_namespace', 'page_title', 'page_is_new',
 744                                         'page_latest', 'page_is_redirect', 'page_len' )
 745                         ),
 746                         'conds' => $conds,
 747                         'options' => array( 'USE INDEX' => array( 'revision' => $index ) ),
 748                         'join_conds' => $join_cond
 749                 );
 750
 751                 ChangeTags::modifyDisplayQuery(
 752                         $queryInfo['tables'],
 753                         $queryInfo['fields'],
 754                         $queryInfo['conds'],
 755                         $queryInfo['join_conds'],
 756                         $queryInfo['options'],
 757                         $this->tagFilter
 758                 );
 759
 760                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 761
 762                 return $queryInfo;
 763         }
 764
 765         function getUserCond() {
 766                 $condition = array();
 767                 $join_conds = array();
 768                 $tables = array( 'revision', 'page', 'user' );
 769                 if ( $this->contribs == 'newbie' ) {
 770                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 771                         $condition[] = 'rev_user >' . (int)( $max - $max / 100 );
 772                         $index = 'user_timestamp';
 773                         # ignore local groups with the bot right
 774                         # @todo FIXME: Global groups may have 'bot' rights
 775                         $groupsWithBotPermission = User::getGroupsWithPermission( 'bot' );
 776                         if ( count( $groupsWithBotPermission ) ) {
 777                                 $tables[] = 'user_groups';
 778                                 $condition[] = 'ug_group IS NULL';
 779                                 $join_conds['user_groups'] = array(
 780                                         'LEFT JOIN', array(
 781                                                 'ug_user = rev_user',
 782                                                 'ug_group' => $groupsWithBotPermission
 783                                         )
 784                                 );
 785                         }
 786                 } else {
 787                         $uid = User::idFromName( $this->target );
 788                         if ( $uid ) {
 789                                 $condition['rev_user'] = $uid;
 790                                 $index = 'user_timestamp';
 791                         } else {
 792                                 $condition['rev_user_text'] = $this->target;
 793                                 $index = 'usertext_timestamp';
 794                         }
 795                 }
 796
 797                 if ( $this->deletedOnly ) {
 798                         $condition[] = 'rev_deleted != 0';
 799                 }
 800
 801                 if ( $this->topOnly ) {
 802                         $condition[] = 'rev_id = page_latest';
 803                 }
 804
 805                 return array( $tables, $index, $condition, $join_conds );
 806         }
 807
 808         function getNamespaceCond() {
 809                 if ( $this->namespace !== '' ) {
 810                         $selectedNS = $this->mDb->addQuotes( $this->namespace );
 811                         $eq_op = $this->nsInvert ? '!=' : '=';
 812                         $bool_op = $this->nsInvert ? 'AND' : 'OR';
 813
 814                         if ( !$this->associated ) {
 815                                 return array( "page_namespace $eq_op $selectedNS" );
 816                         }
 817
 818                         $associatedNS = $this->mDb->addQuotes(
 819                                 MWNamespace::getAssociated( $this->namespace )
 820                         );
 821
 822                         return array(
 823                                 "page_namespace $eq_op $selectedNS " .
 824                                         $bool_op .
 825                                         " page_namespace $eq_op $associatedNS"
 826                         );
 827                 }
 828
 829                 return array();
 830         }
 831
 832         function getIndexField() {
 833                 return 'rev_timestamp';
 834         }
 835
 836         function doBatchLookups() {
 837                 # Do a link batch query
 838                 $this->mResult->seek( 0 );
 839                 $revIds = array();
 840                 $batch = new LinkBatch();
 841                 # Give some pointers to make (last) links
 842                 foreach ( $this->mResult as $row ) {
 843                         if ( isset( $row->rev_parent_id ) && $row->rev_parent_id ) {
 844                                 $revIds[] = $row->rev_parent_id;
 845                         }
 846                         if ( isset( $row->rev_id ) ) {
 847                                 if ( $this->contribs === 'newbie' ) { // multiple users
 848                                         $batch->add( NS_USER, $row->user_name );
 849                                         $batch->add( NS_USER_TALK, $row->user_name );
 850                                 }
 851                                 $batch->add( $row->page_namespace, $row->page_title );
 852                         }
 853                 }
 854                 $this->mParentLens = Revision::getParentLengths( $this->getDatabase(), $revIds );
 855                 $batch->execute();
 856                 $this->mResult->seek( 0 );
 857         }
 858
 859         /**
 860          * @return string
 861          */
 862         function getStartBody() {
 863                 return "<ul>\n";
 864         }
 865
 866         /**
 867          * @return string
 868          */
 869         function getEndBody() {
 870                 return "</ul>\n";
 871         }
 872
 873         /**
 874          * Generates each row in the contributions list.
 875          *
 876          * Contributions which are marked "top" are currently on top of the history.
 877          * For these contributions, a [rollback] link is shown for users with roll-
 878          * back privileges. The rollback link restores the most recent version that
 879          * was not written by the target user.
 880          *
 881          * @todo This would probably look a lot nicer in a table.
 882          * @param $row
 883          * @return string
 884          */
 885         function formatRow( $row ) {
 886                 wfProfileIn( __METHOD__ );
 887
 888                 $ret = '';
 889                 $classes = array();
 890
 891                 /*
 892                  * There may be more than just revision rows. To make sure that we'll only be processing
 893                  * revisions here, let's _try_ to build a revision out of our row (without displaying
 894                  * notices though) and then trying to grab data from the built object. If we succeed,
 895                  * we're definitely dealing with revision data and we may proceed, if not, we'll leave it
 896                  * to extensions to subscribe to the hook to parse the row.
 897                  */
 898                 wfSuppressWarnings();
 899                 $rev = new Revision( $row );
 900                 $validRevision = (bool)$rev->getId();
 901                 wfRestoreWarnings();
 902
 903                 if ( $validRevision ) {
 904                         $classes = array();
 905
 906                         $page = Title::newFromRow( $row );
 907                         $link = Linker::link(
 908                                 $page,
 909                                 htmlspecialchars( $page->getPrefixedText() ),
 910                                 array( 'class' => 'mw-contributions-title' ),
 911                                 $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 912                         );
 913                         # Mark current revisions
 914                         $topmarktext = '';
 915                         $user = $this->getUser();
 916                         if ( $row->rev_id == $row->page_latest ) {
 917                                 $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 918                                 # Add rollback link
 919                                 if ( !$row->page_is_new && $page->quickUserCan( 'rollback', $user )
 920                                         && $page->quickUserCan( 'edit', $user )
 921                                 ) {
 922                                         $this->preventClickjacking();
 923                                         $topmarktext .= ' ' . Linker::generateRollback( $rev, $this->getContext() );
 924                                 }
 925                         }
 926                         # Is there a visible previous revision?
 927                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) && $rev->getParentId() !== 0 ) {
 928                                 $difftext = Linker::linkKnown(
 929                                         $page,
 930                                         $this->messages['diff'],
 931                                         array(),
 932                                         array(
 933                                                 'diff' => 'prev',
 934                                                 'oldid' => $row->rev_id
 935                                         )
 936                                 );
 937                         } else {
 938                                 $difftext = $this->messages['diff'];
 939                         }
 940                         $histlink = Linker::linkKnown(
 941                                 $page,
 942                                 $this->messages['hist'],
 943                                 array(),
 944                                 array( 'action' => 'history' )
 945                         );
 946
 947                         if ( $row->rev_parent_id === null ) {
 948                                 // For some reason rev_parent_id isn't populated for this row.
 949                                 // Its rumoured this is true on wikipedia for some revisions (bug 34922).
 950                                 // Next best thing is to have the total number of bytes.
 951                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
 952                                 $chardiff .= Linker::formatRevisionSize( $row->rev_len );
 953                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
 954                         } else {
 955                                 $parentLen = 0;
 956                                 if ( isset( $this->mParentLens[$row->rev_parent_id] ) ) {
 957                                         $this->mParentLens[$row->rev_parent_id];
 958                                 }
 959
 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 = ' . . ' . $lang->getDirMark() . 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} ";
1017                         $ret .= "{$link}{$userlink} {$comment} {$topmarktext}";
1018
1019                         # Denote if username is redacted for this edit
1020                         if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
1021                                 $ret .= " <strong>" .
1022                                         $this->msg( 'rev-deleted-user-contribs' )->escaped() .
1023                                         "</strong>";
1024                         }
1025
1026                         # Tags, if any.
1027                         list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow(
1028                                 $row->ts_tags,
1029                                 'contributions'
1030                         );
1031                         $classes = array_merge( $classes, $newClasses );
1032                         $ret .= " $tagSummary";
1033                 }
1034
1035                 // Let extensions add data
1036                 wfRunHooks( 'ContributionsLineEnding', array( $this, &$ret, $row, &$classes ) );
1037
1038                 if ( $classes === array() && $ret === '' ) {
1039                         wfDebug( 'Dropping Special:Contribution row that could not be formatted' );
1040                         $ret = "<!-- Could not format Special:Contribution row. -->\n";
1041                 } else {
1042                         $ret = Html::rawElement( 'li', array( 'class' => $classes ), $ret ) . "\n";
1043                 }
1044
1045                 wfProfileOut( __METHOD__ );
1046
1047                 return $ret;
1048         }
1049
1050         /**
1051          * Overwrite Pager function and return a helpful comment
1052          * @return string
1053          */
1054         function getSqlComment() {
1055                 if ( $this->namespace || $this->deletedOnly ) {
1056                         // potentially slow, see CR r58153
1057                         return 'contributions page filtered for namespace or RevisionDeleted edits';
1058                 } else {
1059                         return 'contributions page unfiltered';
1060                 }
1061         }
1062
1063         protected function preventClickjacking() {
1064                 $this->preventClickjacking = true;
1065         }
1066
1067         /**
1068          * @return bool
1069          */
1070         public function getPreventClickjacking() {
1071                 return $this->preventClickjacking;
1072         }
1073 }