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 class SpecialContributions extends IncludableSpecialPage {
  30         protected $opts;
  31
  32         public function __construct() {
  33                 parent::__construct( 'Contributions' );
  34         }
  35
  36         public function execute( $par ) {
  37                 $this->setHeaders();
  38                 $this->outputHeader();
  39                 $out = $this->getOutput();
  40                 $out->addModuleStyles( 'mediawiki.special' );
  41
  42                 $this->opts = array();
  43                 $request = $this->getRequest();
  44
  45                 if ( $par !== null ) {
  46                         $target = $par;
  47                 } else {
  48                         $target = $request->getVal( 'target' );
  49                 }
  50
  51                 // check for radiobox
  52                 if ( $request->getVal( 'contribs' ) == 'newbie' ) {
  53                         $target = 'newbies';
  54                         $this->opts['contribs'] = 'newbie';
  55                 } elseif ( $par === 'newbies' ) { // b/c for WMF
  56                         $target = 'newbies';
  57                         $this->opts['contribs'] = 'newbie';
  58                 } else {
  59                         $this->opts['contribs'] = 'user';
  60                 }
  61
  62                 $this->opts['deletedOnly'] = $request->getBool( 'deletedOnly' );
  63
  64                 if ( !strlen( $target ) ) {
  65                         if ( !$this->including() ) {
  66                                 $out->addHTML( $this->getForm() );
  67                         }
  68
  69                         return;
  70                 }
  71
  72                 $user = $this->getUser();
  73
  74                 $this->opts['limit'] = $request->getInt( 'limit', $user->getOption( 'rclimit' ) );
  75                 $this->opts['target'] = $target;
  76                 $this->opts['topOnly'] = $request->getBool( 'topOnly' );
  77                 $this->opts['newOnly'] = $request->getBool( 'newOnly' );
  78
  79                 $nt = Title::makeTitleSafe( NS_USER, $target );
  80                 if ( !$nt ) {
  81                         $out->addHTML( $this->getForm() );
  82
  83                         return;
  84                 }
  85                 $userObj = User::newFromName( $nt->getText(), false );
  86                 if ( !$userObj ) {
  87                         $out->addHTML( $this->getForm() );
  88
  89                         return;
  90                 }
  91                 $id = $userObj->getID();
  92
  93                 if ( $this->opts['contribs'] != 'newbie' ) {
  94                         $target = $nt->getText();
  95                         $out->addSubtitle( $this->contributionsSub( $userObj ) );
  96                         $out->setHTMLTitle( $this->msg(
  97                                 'pagetitle',
  98                                 $this->msg( 'contributions-title', $target )->plain()
  99                         )->inContentLanguage() );
 100                         $this->getSkin()->setRelevantUser( $userObj );
 101                 } else {
 102                         $out->addSubtitle( $this->msg( 'sp-contributions-newbies-sub' ) );
 103                         $out->setHTMLTitle( $this->msg(
 104                                 'pagetitle',
 105                                 $this->msg( 'sp-contributions-newbies-title' )->plain()
 106                         )->inContentLanguage() );
 107                 }
 108
 109                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 110                         $this->opts['namespace'] = intval( $ns );
 111                 } else {
 112                         $this->opts['namespace'] = '';
 113                 }
 114
 115                 $this->opts['associated'] = $request->getBool( 'associated' );
 116                 $this->opts['nsInvert'] = (bool)$request->getVal( 'nsInvert' );
 117                 $this->opts['tagfilter'] = (string)$request->getVal( 'tagfilter' );
 118
 119                 // Allows reverts to have the bot flag in recent changes. It is just here to
 120                 // be passed in the form at the top of the page
 121                 if ( $user->isAllowed( 'markbotedits' ) && $request->getBool( 'bot' ) ) {
 122                         $this->opts['bot'] = '1';
 123                 }
 124
 125                 $skip = $request->getText( 'offset' ) || $request->getText( 'dir' ) == 'prev';
 126                 # Offset overrides year/month selection
 127                 if ( $skip ) {
 128                         $this->opts['year'] = '';
 129                         $this->opts['month'] = '';
 130                 } else {
 131                         $this->opts['year'] = $request->getIntOrNull( 'year' );
 132                         $this->opts['month'] = $request->getIntOrNull( 'month' );
 133                 }
 134
 135                 $feedType = $request->getVal( 'feed' );
 136
 137                 $feedParams = array(
 138                         'action' => 'feedcontributions',
 139                         'user' => $target,
 140                 );
 141                 if ( $this->opts['topOnly'] ) {
 142                         $feedParams['toponly'] = true;
 143                 }
 144                 if ( $this->opts['newOnly'] ) {
 145                         $feedParams['newonly'] = true;
 146                 }
 147                 if ( $this->opts['deletedOnly'] ) {
 148                         $feedParams['deletedonly'] = true;
 149                 }
 150                 if ( $this->opts['tagfilter'] !== '' ) {
 151                         $feedParams['tagfilter'] = $this->opts['tagfilter'];
 152                 }
 153                 if ( $this->opts['namespace'] !== '' ) {
 154                         $feedParams['namespace'] = $this->opts['namespace'];
 155                 }
 156                 // Don't use year and month for the feed URL, but pass them on if
 157                 // we redirect to API (if $feedType is specified)
 158                 if ( $feedType && $this->opts['year'] !== null ) {
 159                         $feedParams['year'] = $this->opts['year'];
 160                 }
 161                 if ( $feedType && $this->opts['month'] !== null ) {
 162                         $feedParams['month'] = $this->opts['month'];
 163                 }
 164
 165                 if ( $feedType ) {
 166                         // Maintain some level of backwards compatibility
 167                         // If people request feeds using the old parameters, redirect to API
 168                         $feedParams['feedformat'] = $feedType;
 169                         $url = wfAppendQuery( wfScript( 'api' ), $feedParams );
 170
 171                         $out->redirect( $url, '301' );
 172
 173                         return;
 174                 }
 175
 176                 // Add RSS/atom links
 177                 $this->addFeedLinks( $feedParams );
 178
 179                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id, $userObj, $this ) ) ) {
 180                         if ( !$this->including() ) {
 181                                 $out->addHTML( $this->getForm() );
 182                         }
 183                         $pager = new ContribsPager( $this->getContext(), array(
 184                                 'target' => $target,
 185                                 'contribs' => $this->opts['contribs'],
 186                                 'namespace' => $this->opts['namespace'],
 187                                 'tagfilter' => $this->opts['tagfilter'],
 188                                 'year' => $this->opts['year'],
 189                                 'month' => $this->opts['month'],
 190                                 'deletedOnly' => $this->opts['deletedOnly'],
 191                                 'topOnly' => $this->opts['topOnly'],
 192                                 'newOnly' => $this->opts['newOnly'],
 193                                 'nsInvert' => $this->opts['nsInvert'],
 194                                 'associated' => $this->opts['associated'],
 195                         ) );
 196
 197                         if ( !$pager->getNumRows() ) {
 198                                 $out->addWikiMsg( 'nocontribs', $target );
 199                         } else {
 200                                 # Show a message about slave lag, if applicable
 201                                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 202                                 if ( $lag > 0 ) {
 203                                         $out->showLagWarning( $lag );
 204                                 }
 205
 206                                 $output = $pager->getBody();
 207                                 if ( !$this->including() ) {
 208                                         $output = '<p>' . $pager->getNavigationBar() . '</p>' .
 209                                                 $output .
 210                                                 '<p>' . $pager->getNavigationBar() . '</p>';
 211                                 }
 212                                 $out->addHTML( $output );
 213                         }
 214                         $out->preventClickjacking( $pager->getPreventClickjacking() );
 215
 216                         # Show the appropriate "footer" message - WHOIS tools, etc.
 217                         if ( $this->opts['contribs'] == 'newbie' ) {
 218                                 $message = 'sp-contributions-footer-newbies';
 219                         } elseif ( IP::isIPAddress( $target ) ) {
 220                                 $message = 'sp-contributions-footer-anon';
 221                         } elseif ( $userObj->isAnon() ) {
 222                                 // No message for non-existing users
 223                                 $message = '';
 224                         } else {
 225                                 $message = 'sp-contributions-footer';
 226                         }
 227
 228                         if ( $message ) {
 229                                 if ( !$this->including() ) {
 230                                         if ( !$this->msg( $message, $target )->isDisabled() ) {
 231                                                 $out->wrapWikiMsg(
 232                                                         "<div class='mw-contributions-footer'>\n$1\n</div>",
 233                                                         array( $message, $target ) );
 234                                         }
 235                                 }
 236                         }
 237                 }
 238         }
 239
 240         /**
 241          * Generates the subheading with links
 242          * @param User $userObj User object for the target
 243          * @return string Appropriately-escaped HTML to be output literally
 244          * @todo FIXME: Almost the same as getSubTitle in SpecialDeletedContributions.php.
 245          * Could be combined.
 246          */
 247         protected function contributionsSub( $userObj ) {
 248                 if ( $userObj->isAnon() ) {
 249                         // Show a warning message that the user being searched for doesn't exists
 250                         if ( !User::isIP( $userObj->getName() ) ) {
 251                                 $this->getOutput()->wrapWikiMsg(
 252                                         "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1\n</div>",
 253                                         array(
 254                                                 'contributions-userdoesnotexist',
 255                                                 wfEscapeWikiText( $userObj->getName() ),
 256                                         )
 257                                 );
 258                                 if ( !$this->including() ) {
 259                                         $this->getOutput()->setStatusCode( 404 );
 260                                 }
 261                         }
 262                         $user = htmlspecialchars( $userObj->getName() );
 263                 } else {
 264                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 265                 }
 266                 $nt = $userObj->getUserPage();
 267                 $talk = $userObj->getTalkPage();
 268                 $links = '';
 269                 if ( $talk ) {
 270                         $tools = $this->getUserLinks( $nt, $talk, $userObj );
 271                         $links = $this->getLanguage()->pipeList( $tools );
 272
 273                         // Show a note if the user is blocked and display the last block log entry.
 274                         // Do not expose the autoblocks, since that may lead to a leak of accounts' IPs,
 275                         // and also this will display a totally irrelevant log entry as a current block.
 276                         if ( !$this->including() ) {
 277                                 $block = Block::newFromTarget( $userObj, $userObj );
 278                                 if ( !is_null( $block ) && $block->getType() != Block::TYPE_AUTO ) {
 279                                         if ( $block->getType() == Block::TYPE_RANGE ) {
 280                                                 $nt = MWNamespace::getCanonicalName( NS_USER ) . ':' . $block->getTarget();
 281                                         }
 282
 283                                         $out = $this->getOutput(); // showLogExtract() wants first parameter by reference
 284                                         LogEventsList::showLogExtract(
 285                                                 $out,
 286                                                 'block',
 287                                                 $nt,
 288                                                 '',
 289                                                 array(
 290                                                         'lim' => 1,
 291                                                         'showIfEmpty' => false,
 292                                                         'msgKey' => array(
 293                                                                 $userObj->isAnon() ?
 294                                                                         'sp-contributions-blocked-notice-anon' :
 295                                                                         'sp-contributions-blocked-notice',
 296                                                                 $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 297                                                         ),
 298                                                         'offset' => '' # don't use WebRequest parameter offset
 299                                                 )
 300                                         );
 301                                 }
 302                         }
 303                 }
 304
 305                 return $this->msg( 'contribsub2' )->rawParams( $user, $links )->params( $userObj->getName() );
 306         }
 307
 308         /**
 309          * Links to different places.
 310          * @param Title $userpage Target user page
 311          * @param Title $talkpage Talk page
 312          * @param User $target Target user object
 313          * @return array
 314          */
 315         public function getUserLinks( Title $userpage, Title $talkpage, User $target ) {
 316
 317                 $id = $target->getId();
 318                 $username = $target->getName();
 319
 320                 $tools[] = Linker::link( $talkpage, $this->msg( 'sp-contributions-talk' )->escaped() );
 321
 322                 if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 323                         if ( $this->getUser()->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 324                                 if ( $target->isBlocked() && $target->getBlock()->getType() != Block::TYPE_AUTO ) {
 325                                         $tools[] = Linker::linkKnown( # Change block link
 326                                                 SpecialPage::getTitleFor( 'Block', $username ),
 327                                                 $this->msg( 'change-blocklink' )->escaped()
 328                                         );
 329                                         $tools[] = Linker::linkKnown( # Unblock link
 330                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 331                                                 $this->msg( 'unblocklink' )->escaped()
 332                                         );
 333                                 } else { # User is not blocked
 334                                         $tools[] = Linker::linkKnown( # Block link
 335                                                 SpecialPage::getTitleFor( 'Block', $username ),
 336                                                 $this->msg( 'blocklink' )->escaped()
 337                                         );
 338                                 }
 339                         }
 340
 341                         # Block log link
 342                         $tools[] = Linker::linkKnown(
 343                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 344                                 $this->msg( 'sp-contributions-blocklog' )->escaped(),
 345                                 array(),
 346                                 array( 'page' => $userpage->getPrefixedText() )
 347                         );
 348
 349                         # Suppression log link (bug 59120)
 350                         if ( $this->getUser()->isAllowed( 'suppressionlog' ) ) {
 351                                 $tools[] = Linker::linkKnown(
 352                                         SpecialPage::getTitleFor( 'Log', 'suppress' ),
 353                                         $this->msg( 'sp-contributions-suppresslog' )->escaped(),
 354                                         array(),
 355                                         array( 'offender' => $username )
 356                                 );
 357                         }
 358                 }
 359                 # Uploads
 360                 $tools[] = Linker::linkKnown(
 361                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 362                         $this->msg( 'sp-contributions-uploads' )->escaped()
 363                 );
 364
 365                 # Other logs link
 366                 $tools[] = Linker::linkKnown(
 367                         SpecialPage::getTitleFor( 'Log', $username ),
 368                         $this->msg( 'sp-contributions-logs' )->escaped()
 369                 );
 370
 371                 # Add link to deleted user contributions for priviledged users
 372                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 373                         $tools[] = Linker::linkKnown(
 374                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 375                                 $this->msg( 'sp-contributions-deleted' )->escaped()
 376                         );
 377                 }
 378
 379                 # Add a link to change user rights for privileged users
 380                 $userrightsPage = new UserrightsPage();
 381                 $userrightsPage->setContext( $this->getContext() );
 382                 if ( $userrightsPage->userCanChangeRights( $target ) ) {
 383                         $tools[] = Linker::linkKnown(
 384                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 385                                 $this->msg( 'sp-contributions-userrights' )->escaped()
 386                         );
 387                 }
 388
 389                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 390
 391                 return $tools;
 392         }
 393
 394         /**
 395          * Generates the namespace selector form with hidden attributes.
 396          * @return string HTML fragment
 397          */
 398         protected function getForm() {
 399                 $this->opts['title'] = $this->getPageTitle()->getPrefixedText();
 400                 if ( !isset( $this->opts['target'] ) ) {
 401                         $this->opts['target'] = '';
 402                 } else {
 403                         $this->opts['target'] = str_replace( '_', ' ', $this->opts['target'] );
 404                 }
 405
 406                 if ( !isset( $this->opts['namespace'] ) ) {
 407                         $this->opts['namespace'] = '';
 408                 }
 409
 410                 if ( !isset( $this->opts['nsInvert'] ) ) {
 411                         $this->opts['nsInvert'] = '';
 412                 }
 413
 414                 if ( !isset( $this->opts['associated'] ) ) {
 415                         $this->opts['associated'] = false;
 416                 }
 417
 418                 if ( !isset( $this->opts['contribs'] ) ) {
 419                         $this->opts['contribs'] = 'user';
 420                 }
 421
 422                 if ( !isset( $this->opts['year'] ) ) {
 423                         $this->opts['year'] = '';
 424                 }
 425
 426                 if ( !isset( $this->opts['month'] ) ) {
 427                         $this->opts['month'] = '';
 428                 }
 429
 430                 if ( $this->opts['contribs'] == 'newbie' ) {
 431                         $this->opts['target'] = '';
 432                 }
 433
 434                 if ( !isset( $this->opts['tagfilter'] ) ) {
 435                         $this->opts['tagfilter'] = '';
 436                 }
 437
 438                 if ( !isset( $this->opts['topOnly'] ) ) {
 439                         $this->opts['topOnly'] = false;
 440                 }
 441
 442                 if ( !isset( $this->opts['newOnly'] ) ) {
 443                         $this->opts['newOnly'] = false;
 444                 }
 445
 446                 $form = Html::openElement(
 447                         'form',
 448                         array(
 449                                 'method' => 'get',
 450                                 'action' => wfScript(),
 451                                 'class' => 'mw-contributions-form'
 452                         )
 453                 );
 454
 455                 # Add hidden params for tracking except for parameters in $skipParameters
 456                 $skipParameters = array(
 457                         'namespace',
 458                         'nsInvert',
 459                         'deletedOnly',
 460                         'target',
 461                         'contribs',
 462                         'year',
 463                         'month',
 464                         'topOnly',
 465                         'newOnly',
 466                         'associated'
 467                 );
 468
 469                 foreach ( $this->opts as $name => $value ) {
 470                         if ( in_array( $name, $skipParameters ) ) {
 471                                 continue;
 472                         }
 473                         $form .= "\t" . Html::hidden( $name, $value ) . "\n";
 474                 }
 475
 476                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagfilter'] );
 477
 478                 if ( $tagFilter ) {
 479                         $filterSelection = Html::rawElement(
 480                                 'td',
 481                                 array( 'class' => 'mw-label' ),
 482                                 array_shift( $tagFilter )
 483                         );
 484                         $filterSelection .= Html::rawElement(
 485                                 'td',
 486                                 array( 'class' => 'mw-input' ),
 487                                 implode( '&#160', $tagFilter )
 488                         );
 489                 } else {
 490                         $filterSelection = Html::rawElement( 'td', array( 'colspan' => 2 ), '' );
 491                 }
 492
 493                 $labelNewbies = Xml::radioLabel(
 494                         $this->msg( 'sp-contributions-newbies' )->text(),
 495                         'contribs',
 496                         'newbie',
 497                         'newbie',
 498                         $this->opts['contribs'] == 'newbie',
 499                         array( 'class' => 'mw-input' )
 500                 );
 501                 $labelUsername = Xml::radioLabel(
 502                         $this->msg( 'sp-contributions-username' )->text(),
 503                         'contribs',
 504                         'user',
 505                         'user',
 506                         $this->opts['contribs'] == 'user',
 507                         array( 'class' => 'mw-input' )
 508                 );
 509                 $input = Html::input(
 510                         'target',
 511                         $this->opts['target'],
 512                         'text',
 513                         array( 'size' => '40', 'required' => '', 'class' => 'mw-input' ) +
 514                                 ( $this->opts['target'] ? array() : array( 'autofocus' )
 515                                 )
 516                 );
 517                 $targetSelection = Html::rawElement(
 518                         'td',
 519                         array( 'colspan' => 2 ),
 520                         $labelNewbies . '<br />' . $labelUsername . ' ' . $input . ' '
 521                 );
 522
 523                 $namespaceSelection = Xml::tags(
 524                         'td',
 525                         array( 'class' => 'mw-label' ),
 526                         Xml::label(
 527                                 $this->msg( 'namespace' )->text(),
 528                                 'namespace',
 529                                 ''
 530                         )
 531                 );
 532                 $namespaceSelection .= Html::rawElement(
 533                         'td',
 534                         null,
 535                         Html::namespaceSelector(
 536                                 array( 'selected' => $this->opts['namespace'], 'all' => '' ),
 537                                 array(
 538                                         'name' => 'namespace',
 539                                         'id' => 'namespace',
 540                                         'class' => 'namespaceselector',
 541                                 )
 542                         ) . '&#160;' .
 543                                 Html::rawElement(
 544                                         'span',
 545                                         array( 'style' => 'white-space: nowrap' ),
 546                                         Xml::checkLabel(
 547                                                 $this->msg( 'invert' )->text(),
 548                                                 'nsInvert',
 549                                                 'nsInvert',
 550                                                 $this->opts['nsInvert'],
 551                                                 array(
 552                                                         'title' => $this->msg( 'tooltip-invert' )->text(),
 553                                                         'class' => 'mw-input'
 554                                                 )
 555                                         ) . '&#160;'
 556                                 ) .
 557                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 558                                         Xml::checkLabel(
 559                                                 $this->msg( 'namespace_association' )->text(),
 560                                                 'associated',
 561                                                 'associated',
 562                                                 $this->opts['associated'],
 563                                                 array(
 564                                                         'title' => $this->msg( 'tooltip-namespace_association' )->text(),
 565                                                         'class' => 'mw-input'
 566                                                 )
 567                                         ) . '&#160;'
 568                                 )
 569                 );
 570
 571                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 572                         $deletedOnlyCheck = Html::rawElement(
 573                                 'span',
 574                                 array( 'style' => 'white-space: nowrap' ),
 575                                 Xml::checkLabel(
 576                                         $this->msg( 'history-show-deleted' )->text(),
 577                                         'deletedOnly',
 578                                         'mw-show-deleted-only',
 579                                         $this->opts['deletedOnly'],
 580                                         array( 'class' => 'mw-input' )
 581                                 )
 582                         );
 583                 } else {
 584                         $deletedOnlyCheck = '';
 585                 }
 586
 587                 $checkLabelTopOnly = Html::rawElement(
 588                         'span',
 589                         array( 'style' => 'white-space: nowrap' ),
 590                         Xml::checkLabel(
 591                                 $this->msg( 'sp-contributions-toponly' )->text(),
 592                                 'topOnly',
 593                                 'mw-show-top-only',
 594                                 $this->opts['topOnly'],
 595                                 array( 'class' => 'mw-input' )
 596                         )
 597                 );
 598                 $checkLabelNewOnly = Html::rawElement(
 599                         'span',
 600                         array( 'style' => 'white-space: nowrap' ),
 601                         Xml::checkLabel(
 602                                 $this->msg( 'sp-contributions-newonly' )->text(),
 603                                 'newOnly',
 604                                 'mw-show-new-only',
 605                                 $this->opts['newOnly'],
 606                                 array( 'class' => 'mw-input' )
 607                         )
 608                 );
 609                 $extraOptions = Html::rawElement(
 610                         'td',
 611                         array( 'colspan' => 2 ),
 612                         $deletedOnlyCheck . $checkLabelTopOnly . $checkLabelNewOnly
 613                 );
 614
 615                 $dateSelectionAndSubmit = Xml::tags( 'td', array( 'colspan' => 2 ),
 616                         Xml::dateMenu(
 617                                 $this->opts['year'] === '' ? MWTimestamp::getInstance()->format( 'Y' ) : $this->opts['year'],
 618                                 $this->opts['month']
 619                         ) . ' ' .
 620                                 Xml::submitButton(
 621                                         $this->msg( 'sp-contributions-submit' )->text(),
 622                                         array( 'class' => 'mw-submit' )
 623                                 )
 624                 );
 625
 626                 $form .= Xml::fieldset( $this->msg( 'sp-contributions-search' )->text() );
 627                 $form .= Html::rawElement( 'table', array( 'class' => 'mw-contributions-table' ), "\n" .
 628                         Html::rawElement( 'tr', array(), $targetSelection ) . "\n" .
 629                         Html::rawElement( 'tr', array(), $namespaceSelection ) . "\n" .
 630                         Html::rawElement( 'tr', array(), $filterSelection ) . "\n" .
 631                         Html::rawElement( 'tr', array(), $extraOptions ) . "\n" .
 632                         Html::rawElement( 'tr', array(), $dateSelectionAndSubmit ) . "\n"
 633                 );
 634
 635                 $explain = $this->msg( 'sp-contributions-explain' );
 636                 if ( !$explain->isBlank() ) {
 637                         $form .= "<p id='mw-sp-contributions-explain'>{$explain->parse()}</p>";
 638                 }
 639
 640                 $form .= Xml::closeElement( 'fieldset' ) . Xml::closeElement( 'form' );
 641
 642                 return $form;
 643         }
 644
 645         protected function getGroupName() {
 646                 return 'users';
 647         }
 648 }
 649
 650 /**
 651  * Pager for Special:Contributions
 652  * @ingroup SpecialPage Pager
 653  */
 654 class ContribsPager extends ReverseChronologicalPager {
 655         public $mDefaultDirection = IndexPager::DIR_DESCENDING;
 656         public $messages;
 657         public $target;
 658         public $namespace = '';
 659         public $mDb;
 660         public $preventClickjacking = false;
 661
 662         /** @var DatabaseBase */
 663         public $mDbSecondary;
 664
 665         /**
 666          * @var array
 667          */
 668         protected $mParentLens;
 669
 670         function __construct( IContextSource $context, array $options ) {
 671                 parent::__construct( $context );
 672
 673                 $msgs = array(
 674                         'diff',
 675                         'hist',
 676                         'newarticle',
 677                         'pipe-separator',
 678                         'rev-delundel',
 679                         'rollbacklink',
 680                         'uctop'
 681                 );
 682
 683                 foreach ( $msgs as $msg ) {
 684                         $this->messages[$msg] = $this->msg( $msg )->escaped();
 685                 }
 686
 687                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 688                 $this->contribs = isset( $options['contribs'] ) ? $options['contribs'] : 'users';
 689                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 690                 $this->tagFilter = isset( $options['tagfilter'] ) ? $options['tagfilter'] : false;
 691                 $this->nsInvert = isset( $options['nsInvert'] ) ? $options['nsInvert'] : false;
 692                 $this->associated = isset( $options['associated'] ) ? $options['associated'] : false;
 693
 694                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 695                 $this->topOnly = !empty( $options['topOnly'] );
 696                 $this->newOnly = !empty( $options['newOnly'] );
 697
 698                 $year = isset( $options['year'] ) ? $options['year'] : false;
 699                 $month = isset( $options['month'] ) ? $options['month'] : false;
 700                 $this->getDateCond( $year, $month );
 701
 702                 // Most of this code will use the 'contributions' group DB, which can map to slaves
 703                 // with extra user based indexes or partioning by user. The additional metadata
 704                 // queries should use a regular slave since the lookup pattern is not all by user.
 705                 $this->mDbSecondary = wfGetDB( DB_SLAVE ); // any random slave
 706                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 707         }
 708
 709         function getDefaultQuery() {
 710                 $query = parent::getDefaultQuery();
 711                 $query['target'] = $this->target;
 712
 713                 return $query;
 714         }
 715
 716         /**
 717          * This method basically executes the exact same code as the parent class, though with
 718          * a hook added, to allow extentions to add additional queries.
 719          *
 720          * @param string $offset Index offset, inclusive
 721          * @param int $limit Exact query limit
 722          * @param bool $descending Query direction, false for ascending, true for descending
 723          * @return ResultWrapper
 724          */
 725         function reallyDoQuery( $offset, $limit, $descending ) {
 726                 list( $tables, $fields, $conds, $fname, $options, $join_conds ) = $this->buildQueryInfo(
 727                         $offset,
 728                         $limit,
 729                         $descending
 730                 );
 731                 $pager = $this;
 732
 733                 /*
 734                  * This hook will allow extensions to add in additional queries, so they can get their data
 735                  * in My Contributions as well. Extensions should append their results to the $data array.
 736                  *
 737                  * Extension queries have to implement the navbar requirement as well. They should
 738                  * - have a column aliased as $pager->getIndexField()
 739                  * - have LIMIT set
 740                  * - have a WHERE-clause that compares the $pager->getIndexField()-equivalent column to the offset
 741                  * - have the ORDER BY specified based upon the details provided by the navbar
 742                  *
 743                  * See includes/Pager.php buildQueryInfo() method on how to build LIMIT, WHERE & ORDER BY
 744                  *
 745                  * &$data: an array of results of all contribs queries
 746                  * $pager: the ContribsPager object hooked into
 747                  * $offset: see phpdoc above
 748                  * $limit: see phpdoc above
 749                  * $descending: see phpdoc above
 750                  */
 751                 $data = array( $this->mDb->select(
 752                         $tables, $fields, $conds, $fname, $options, $join_conds
 753                 ) );
 754                 wfRunHooks(
 755                         'ContribsPager::reallyDoQuery',
 756                         array( &$data, $pager, $offset, $limit, $descending )
 757                 );
 758
 759                 $result = array();
 760
 761                 // loop all results and collect them in an array
 762                 foreach ( $data as $query ) {
 763                         foreach ( $query as $i => $row ) {
 764                                 // use index column as key, allowing us to easily sort in PHP
 765                                 $result[$row->{$this->getIndexField()} . "-$i"] = $row;
 766                         }
 767                 }
 768
 769                 // sort results
 770                 if ( $descending ) {
 771                         ksort( $result );
 772                 } else {
 773                         krsort( $result );
 774                 }
 775
 776                 // enforce limit
 777                 $result = array_slice( $result, 0, $limit );
 778
 779                 // get rid of array keys
 780                 $result = array_values( $result );
 781
 782                 return new FakeResultWrapper( $result );
 783         }
 784
 785         function getQueryInfo() {
 786                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 787
 788                 $user = $this->getUser();
 789                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 790
 791                 // Paranoia: avoid brute force searches (bug 17342)
 792                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 793                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0';
 794                 } elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
 795                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::SUPPRESSED_USER ) .
 796                                 ' != ' . Revision::SUPPRESSED_USER;
 797                 }
 798
 799                 # Don't include orphaned revisions
 800                 $join_cond['page'] = Revision::pageJoinCond();
 801                 # Get the current user name for accounts
 802                 $join_cond['user'] = Revision::userJoinCond();
 803
 804                 $options = array();
 805                 if ( $index ) {
 806                         $options['USE INDEX'] = array( 'revision' => $index );
 807                 }
 808
 809                 $queryInfo = array(
 810                         'tables' => $tables,
 811                         'fields' => array_merge(
 812                                 Revision::selectFields(),
 813                                 Revision::selectUserFields(),
 814                                 array( 'page_namespace', 'page_title', 'page_is_new',
 815                                         'page_latest', 'page_is_redirect', 'page_len' )
 816                         ),
 817                         'conds' => $conds,
 818                         'options' => $options,
 819                         'join_conds' => $join_cond
 820                 );
 821
 822                 ChangeTags::modifyDisplayQuery(
 823                         $queryInfo['tables'],
 824                         $queryInfo['fields'],
 825                         $queryInfo['conds'],
 826                         $queryInfo['join_conds'],
 827                         $queryInfo['options'],
 828                         $this->tagFilter
 829                 );
 830
 831                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 832
 833                 return $queryInfo;
 834         }
 835
 836         function getUserCond() {
 837                 $condition = array();
 838                 $join_conds = array();
 839                 $tables = array( 'revision', 'page', 'user' );
 840                 $index = false;
 841                 if ( $this->contribs == 'newbie' ) {
 842                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 843                         $condition[] = 'rev_user >' . (int)( $max - $max / 100 );
 844                         # ignore local groups with the bot right
 845                         # @todo FIXME: Global groups may have 'bot' rights
 846                         $groupsWithBotPermission = User::getGroupsWithPermission( 'bot' );
 847                         if ( count( $groupsWithBotPermission ) ) {
 848                                 $tables[] = 'user_groups';
 849                                 $condition[] = 'ug_group IS NULL';
 850                                 $join_conds['user_groups'] = array(
 851                                         'LEFT JOIN', array(
 852                                                 'ug_user = rev_user',
 853                                                 'ug_group' => $groupsWithBotPermission
 854                                         )
 855                                 );
 856                         }
 857                 } else {
 858                         $uid = User::idFromName( $this->target );
 859                         if ( $uid ) {
 860                                 $condition['rev_user'] = $uid;
 861                                 $index = 'user_timestamp';
 862                         } else {
 863                                 $condition['rev_user_text'] = $this->target;
 864                                 $index = 'usertext_timestamp';
 865                         }
 866                 }
 867
 868                 if ( $this->deletedOnly ) {
 869                         $condition[] = 'rev_deleted != 0';
 870                 }
 871
 872                 if ( $this->topOnly ) {
 873                         $condition[] = 'rev_id = page_latest';
 874                 }
 875
 876                 if ( $this->newOnly ) {
 877                         $condition[] = 'rev_parent_id = 0';
 878                 }
 879
 880                 return array( $tables, $index, $condition, $join_conds );
 881         }
 882
 883         function getNamespaceCond() {
 884                 if ( $this->namespace !== '' ) {
 885                         $selectedNS = $this->mDb->addQuotes( $this->namespace );
 886                         $eq_op = $this->nsInvert ? '!=' : '=';
 887                         $bool_op = $this->nsInvert ? 'AND' : 'OR';
 888
 889                         if ( !$this->associated ) {
 890                                 return array( "page_namespace $eq_op $selectedNS" );
 891                         }
 892
 893                         $associatedNS = $this->mDb->addQuotes(
 894                                 MWNamespace::getAssociated( $this->namespace )
 895                         );
 896
 897                         return array(
 898                                 "page_namespace $eq_op $selectedNS " .
 899                                         $bool_op .
 900                                         " page_namespace $eq_op $associatedNS"
 901                         );
 902                 }
 903
 904                 return array();
 905         }
 906
 907         function getIndexField() {
 908                 return 'rev_timestamp';
 909         }
 910
 911         function doBatchLookups() {
 912                 # Do a link batch query
 913                 $this->mResult->seek( 0 );
 914                 $revIds = array();
 915                 $batch = new LinkBatch();
 916                 # Give some pointers to make (last) links
 917                 foreach ( $this->mResult as $row ) {
 918                         if ( isset( $row->rev_parent_id ) && $row->rev_parent_id ) {
 919                                 $revIds[] = $row->rev_parent_id;
 920                         }
 921                         if ( isset( $row->rev_id ) ) {
 922                                 if ( $this->contribs === 'newbie' ) { // multiple users
 923                                         $batch->add( NS_USER, $row->user_name );
 924                                         $batch->add( NS_USER_TALK, $row->user_name );
 925                                 }
 926                                 $batch->add( $row->page_namespace, $row->page_title );
 927                         }
 928                 }
 929                 $this->mParentLens = Revision::getParentLengths( $this->mDbSecondary, $revIds );
 930                 $batch->execute();
 931                 $this->mResult->seek( 0 );
 932         }
 933
 934         /**
 935          * @return string
 936          */
 937         function getStartBody() {
 938                 return "<ul>\n";
 939         }
 940
 941         /**
 942          * @return string
 943          */
 944         function getEndBody() {
 945                 return "</ul>\n";
 946         }
 947
 948         /**
 949          * Generates each row in the contributions list.
 950          *
 951          * Contributions which are marked "top" are currently on top of the history.
 952          * For these contributions, a [rollback] link is shown for users with roll-
 953          * back privileges. The rollback link restores the most recent version that
 954          * was not written by the target user.
 955          *
 956          * @todo This would probably look a lot nicer in a table.
 957          * @param object $row
 958          * @return string
 959          */
 960         function formatRow( $row ) {
 961                 wfProfileIn( __METHOD__ );
 962
 963                 $ret = '';
 964                 $classes = array();
 965
 966                 /*
 967                  * There may be more than just revision rows. To make sure that we'll only be processing
 968                  * revisions here, let's _try_ to build a revision out of our row (without displaying
 969                  * notices though) and then trying to grab data from the built object. If we succeed,
 970                  * we're definitely dealing with revision data and we may proceed, if not, we'll leave it
 971                  * to extensions to subscribe to the hook to parse the row.
 972                  */
 973                 wfSuppressWarnings();
 974                 try {
 975                         $rev = new Revision( $row );
 976                         $validRevision = (bool)$rev->getId();
 977                 } catch ( MWException $e ) {
 978                         $validRevision = false;
 979                 }
 980                 wfRestoreWarnings();
 981
 982                 if ( $validRevision ) {
 983                         $classes = array();
 984
 985                         $page = Title::newFromRow( $row );
 986                         $link = Linker::link(
 987                                 $page,
 988                                 htmlspecialchars( $page->getPrefixedText() ),
 989                                 array( 'class' => 'mw-contributions-title' ),
 990                                 $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 991                         );
 992                         # Mark current revisions
 993                         $topmarktext = '';
 994                         $user = $this->getUser();
 995                         if ( $row->rev_id == $row->page_latest ) {
 996                                 $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 997                                 # Add rollback link
 998                                 if ( !$row->page_is_new && $page->quickUserCan( 'rollback', $user )
 999                                         && $page->quickUserCan( 'edit', $user )
1000                                 ) {
1001                                         $this->preventClickjacking();
1002                                         $topmarktext .= ' ' . Linker::generateRollback( $rev, $this->getContext() );
1003                                 }
1004                         }
1005                         # Is there a visible previous revision?
1006                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) && $rev->getParentId() !== 0 ) {
1007                                 $difftext = Linker::linkKnown(
1008                                         $page,
1009                                         $this->messages['diff'],
1010                                         array(),
1011                                         array(
1012                                                 'diff' => 'prev',
1013                                                 'oldid' => $row->rev_id
1014                                         )
1015                                 );
1016                         } else {
1017                                 $difftext = $this->messages['diff'];
1018                         }
1019                         $histlink = Linker::linkKnown(
1020                                 $page,
1021                                 $this->messages['hist'],
1022                                 array(),
1023                                 array( 'action' => 'history' )
1024                         );
1025
1026                         if ( $row->rev_parent_id === null ) {
1027                                 // For some reason rev_parent_id isn't populated for this row.
1028                                 // Its rumoured this is true on wikipedia for some revisions (bug 34922).
1029                                 // Next best thing is to have the total number of bytes.
1030                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
1031                                 $chardiff .= Linker::formatRevisionSize( $row->rev_len );
1032                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
1033                         } else {
1034                                 $parentLen = 0;
1035                                 if ( isset( $this->mParentLens[$row->rev_parent_id] ) ) {
1036                                         $parentLen = $this->mParentLens[$row->rev_parent_id];
1037                                 }
1038
1039                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
1040                                 $chardiff .= ChangesList::showCharacterDifference(
1041                                         $parentLen,
1042                                         $row->rev_len,
1043                                         $this->getContext()
1044                                 );
1045                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
1046                         }
1047
1048                         $lang = $this->getLanguage();
1049                         $comment = $lang->getDirMark() . Linker::revComment( $rev, false, true );
1050                         $date = $lang->userTimeAndDate( $row->rev_timestamp, $user );
1051                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) ) {
1052                                 $d = Linker::linkKnown(
1053                                         $page,
1054                                         htmlspecialchars( $date ),
1055                                         array( 'class' => 'mw-changeslist-date' ),
1056                                         array( 'oldid' => intval( $row->rev_id ) )
1057                                 );
1058                         } else {
1059                                 $d = htmlspecialchars( $date );
1060                         }
1061                         if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
1062                                 $d = '<span class="history-deleted">' . $d . '</span>';
1063                         }
1064
1065                         # Show user names for /newbies as there may be different users.
1066                         # Note that we already excluded rows with hidden user names.
1067                         if ( $this->contribs == 'newbie' ) {
1068                                 $userlink = ' . . ' . $lang->getDirMark()
1069                                         . Linker::userLink( $rev->getUser(), $rev->getUserText() );
1070                                 $userlink .= ' ' . $this->msg( 'parentheses' )->rawParams(
1071                                         Linker::userTalkLink( $rev->getUser(), $rev->getUserText() ) )->escaped() . ' ';
1072                         } else {
1073                                 $userlink = '';
1074                         }
1075
1076                         if ( $rev->getParentId() === 0 ) {
1077                                 $nflag = ChangesList::flag( 'newpage' );
1078                         } else {
1079                                 $nflag = '';
1080                         }
1081
1082                         if ( $rev->isMinor() ) {
1083                                 $mflag = ChangesList::flag( 'minor' );
1084                         } else {
1085                                 $mflag = '';
1086                         }
1087
1088                         $del = Linker::getRevDeleteLink( $user, $rev, $page );
1089                         if ( $del !== '' ) {
1090                                 $del .= ' ';
1091                         }
1092
1093                         $diffHistLinks = $this->msg( 'parentheses' )
1094                                 ->rawParams( $difftext . $this->messages['pipe-separator'] . $histlink )
1095                                 ->escaped();
1096                         $ret = "{$del}{$d} {$diffHistLinks}{$chardiff}{$nflag}{$mflag} ";
1097                         $ret .= "{$link}{$userlink} {$comment} {$topmarktext}";
1098
1099                         # Denote if username is redacted for this edit
1100                         if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
1101                                 $ret .= " <strong>" .
1102                                         $this->msg( 'rev-deleted-user-contribs' )->escaped() .
1103                                         "</strong>";
1104                         }
1105
1106                         # Tags, if any.
1107                         list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow(
1108                                 $row->ts_tags,
1109                                 'contributions'
1110                         );
1111                         $classes = array_merge( $classes, $newClasses );
1112                         $ret .= " $tagSummary";
1113                 }
1114
1115                 // Let extensions add data
1116                 wfRunHooks( 'ContributionsLineEnding', array( $this, &$ret, $row, &$classes ) );
1117
1118                 if ( $classes === array() && $ret === '' ) {
1119                         wfDebug( "Dropping Special:Contribution row that could not be formatted\n" );
1120                         $ret = "<!-- Could not format Special:Contribution row. -->\n";
1121                 } else {
1122                         $ret = Html::rawElement( 'li', array( 'class' => $classes ), $ret ) . "\n";
1123                 }
1124
1125                 wfProfileOut( __METHOD__ );
1126
1127                 return $ret;
1128         }
1129
1130         /**
1131          * Overwrite Pager function and return a helpful comment
1132          * @return string
1133          */
1134         function getSqlComment() {
1135                 if ( $this->namespace || $this->deletedOnly ) {
1136                         // potentially slow, see CR r58153
1137                         return 'contributions page filtered for namespace or RevisionDeleted edits';
1138                 } else {
1139                         return 'contributions page unfiltered';
1140                 }
1141         }
1142
1143         protected function preventClickjacking() {
1144                 $this->preventClickjacking = true;
1145         }
1146
1147         /**
1148          * @return bool
1149          */
1150         public function getPreventClickjacking() {
1151                 return $this->preventClickjacking;
1152         }
1153 }