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