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