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                 if ( $request->getVal( 'contribs' ) == 'newbie' || $par === 'newbies' ) {
  53                         $target = 'newbies';
  54                         $this->opts['contribs'] = 'newbie';
  55                 } else {
  56                         $this->opts['contribs'] = 'user';
  57                 }
  58
  59                 $this->opts['deletedOnly'] = $request->getBool( 'deletedOnly' );
  60
  61                 if ( !strlen( $target ) ) {
  62                         if ( !$this->including() ) {
  63                                 $out->addHTML( $this->getForm() );
  64                         }
  65
  66                         return;
  67                 }
  68
  69                 $user = $this->getUser();
  70
  71                 $this->opts['limit'] = $request->getInt( 'limit', $user->getOption( 'rclimit' ) );
  72                 $this->opts['target'] = $target;
  73                 $this->opts['topOnly'] = $request->getBool( 'topOnly' );
  74                 $this->opts['newOnly'] = $request->getBool( 'newOnly' );
  75
  76                 $nt = Title::makeTitleSafe( NS_USER, $target );
  77                 if ( !$nt ) {
  78                         $out->addHTML( $this->getForm() );
  79
  80                         return;
  81                 }
  82                 $userObj = User::newFromName( $nt->getText(), false );
  83                 if ( !$userObj ) {
  84                         $out->addHTML( $this->getForm() );
  85
  86                         return;
  87                 }
  88                 $id = $userObj->getID();
  89
  90                 if ( $this->opts['contribs'] != 'newbie' ) {
  91                         $target = $nt->getText();
  92                         $out->addSubtitle( $this->contributionsSub( $userObj ) );
  93                         $out->setHTMLTitle( $this->msg(
  94                                 'pagetitle',
  95                                 $this->msg( 'contributions-title', $target )->plain()
  96                         )->inContentLanguage() );
  97                         $this->getSkin()->setRelevantUser( $userObj );
  98                 } else {
  99                         $out->addSubtitle( $this->msg( 'sp-contributions-newbies-sub' ) );
 100                         $out->setHTMLTitle( $this->msg(
 101                                 'pagetitle',
 102                                 $this->msg( 'sp-contributions-newbies-title' )->plain()
 103                         )->inContentLanguage() );
 104                 }
 105
 106                 $ns = $request->getVal( 'namespace', null );
 107                 if ( $ns !== null && $ns !== '' ) {
 108                         $this->opts['namespace'] = intval( $ns );
 109                 } else {
 110                         $this->opts['namespace'] = '';
 111                 }
 112
 113                 $this->opts['associated'] = $request->getBool( 'associated' );
 114                 $this->opts['nsInvert'] = (bool)$request->getVal( 'nsInvert' );
 115                 $this->opts['tagfilter'] = (string)$request->getVal( 'tagfilter' );
 116
 117                 // Allows reverts to have the bot flag in recent changes. It is just here to
 118                 // be passed in the form at the top of the page
 119                 if ( $user->isAllowed( 'markbotedits' ) && $request->getBool( 'bot' ) ) {
 120                         $this->opts['bot'] = '1';
 121                 }
 122
 123                 $skip = $request->getText( 'offset' ) || $request->getText( 'dir' ) == 'prev';
 124                 # Offset overrides year/month selection
 125                 if ( $skip ) {
 126                         $this->opts['year'] = '';
 127                         $this->opts['month'] = '';
 128                 } else {
 129                         $this->opts['year'] = $request->getIntOrNull( 'year' );
 130                         $this->opts['month'] = $request->getIntOrNull( 'month' );
 131                 }
 132
 133                 $feedType = $request->getVal( 'feed' );
 134
 135                 $feedParams = array(
 136                         'action' => 'feedcontributions',
 137                         'user' => $target,
 138                 );
 139                 if ( $this->opts['topOnly'] ) {
 140                         $feedParams['toponly'] = true;
 141                 }
 142                 if ( $this->opts['newOnly'] ) {
 143                         $feedParams['newonly'] = true;
 144                 }
 145                 if ( $this->opts['deletedOnly'] ) {
 146                         $feedParams['deletedonly'] = true;
 147                 }
 148                 if ( $this->opts['tagfilter'] !== '' ) {
 149                         $feedParams['tagfilter'] = $this->opts['tagfilter'];
 150                 }
 151                 if ( $this->opts['namespace'] !== '' ) {
 152                         $feedParams['namespace'] = $this->opts['namespace'];
 153                 }
 154                 // Don't use year and month for the feed URL, but pass them on if
 155                 // we redirect to API (if $feedType is specified)
 156                 if ( $feedType && $this->opts['year'] !== null ) {
 157                         $feedParams['year'] = $this->opts['year'];
 158                 }
 159                 if ( $feedType && $this->opts['month'] !== null ) {
 160                         $feedParams['month'] = $this->opts['month'];
 161                 }
 162
 163                 if ( $feedType ) {
 164                         // Maintain some level of backwards compatibility
 165                         // If people request feeds using the old parameters, redirect to API
 166                         $feedParams['feedformat'] = $feedType;
 167                         $url = wfAppendQuery( wfScript( 'api' ), $feedParams );
 168
 169                         $out->redirect( $url, '301' );
 170
 171                         return;
 172                 }
 173
 174                 // Add RSS/atom links
 175                 $this->addFeedLinks( $feedParams );
 176
 177                 if ( Hooks::run( 'SpecialContributionsBeforeMainOutput', array( $id, $userObj, $this ) ) ) {
 178                         if ( !$this->including() ) {
 179                                 $out->addHTML( $this->getForm() );
 180                         }
 181                         $pager = new ContribsPager( $this->getContext(), array(
 182                                 'target' => $target,
 183                                 'contribs' => $this->opts['contribs'],
 184                                 'namespace' => $this->opts['namespace'],
 185                                 'tagfilter' => $this->opts['tagfilter'],
 186                                 'year' => $this->opts['year'],
 187                                 'month' => $this->opts['month'],
 188                                 'deletedOnly' => $this->opts['deletedOnly'],
 189                                 'topOnly' => $this->opts['topOnly'],
 190                                 'newOnly' => $this->opts['newOnly'],
 191                                 'nsInvert' => $this->opts['nsInvert'],
 192                                 'associated' => $this->opts['associated'],
 193                         ) );
 194
 195                         if ( !$pager->getNumRows() ) {
 196                                 $out->addWikiMsg( 'nocontribs', $target );
 197                         } else {
 198                                 # Show a message about slave lag, if applicable
 199                                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 200                                 if ( $lag > 0 ) {
 201                                         $out->showLagWarning( $lag );
 202                                 }
 203
 204                                 $output = $pager->getBody();
 205                                 if ( !$this->including() ) {
 206                                         $output = '<p>' . $pager->getNavigationBar() . '</p>' .
 207                                                 $output .
 208                                                 '<p>' . $pager->getNavigationBar() . '</p>';
 209                                 }
 210                                 $out->addHTML( $output );
 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 User $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                         // Show a warning message that the user being searched for doesn't exists
 248                         if ( !User::isIP( $userObj->getName() ) ) {
 249                                 $this->getOutput()->wrapWikiMsg(
 250                                         "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1\n</div>",
 251                                         array(
 252                                                 'contributions-userdoesnotexist',
 253                                                 wfEscapeWikiText( $userObj->getName() ),
 254                                         )
 255                                 );
 256                                 if ( !$this->including() ) {
 257                                         $this->getOutput()->setStatusCode( 404 );
 258                                 }
 259                         }
 260                         $user = htmlspecialchars( $userObj->getName() );
 261                 } else {
 262                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 263                 }
 264                 $nt = $userObj->getUserPage();
 265                 $talk = $userObj->getTalkPage();
 266                 $links = '';
 267                 if ( $talk ) {
 268                         $tools = $this->getUserLinks( $nt, $talk, $userObj );
 269                         $links = $this->getLanguage()->pipeList( $tools );
 270
 271                         // Show a note if the user is blocked and display the last block log entry.
 272                         // Do not expose the autoblocks, since that may lead to a leak of accounts' IPs,
 273                         // and also this will display a totally irrelevant log entry as a current block.
 274                         if ( !$this->including() ) {
 275                                 $block = Block::newFromTarget( $userObj, $userObj );
 276                                 if ( !is_null( $block ) && $block->getType() != Block::TYPE_AUTO ) {
 277                                         if ( $block->getType() == Block::TYPE_RANGE ) {
 278                                                 $nt = MWNamespace::getCanonicalName( NS_USER ) . ':' . $block->getTarget();
 279                                         }
 280
 281                                         $out = $this->getOutput(); // showLogExtract() wants first parameter by reference
 282                                         LogEventsList::showLogExtract(
 283                                                 $out,
 284                                                 'block',
 285                                                 $nt,
 286                                                 '',
 287                                                 array(
 288                                                         'lim' => 1,
 289                                                         'showIfEmpty' => false,
 290                                                         'msgKey' => array(
 291                                                                 $userObj->isAnon() ?
 292                                                                         'sp-contributions-blocked-notice-anon' :
 293                                                                         'sp-contributions-blocked-notice',
 294                                                                 $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 295                                                         ),
 296                                                         'offset' => '' # don't use WebRequest parameter offset
 297                                                 )
 298                                         );
 299                                 }
 300                         }
 301                 }
 302
 303                 return $this->msg( 'contribsub2' )->rawParams( $user, $links )->params( $userObj->getName() );
 304         }
 305
 306         /**
 307          * Links to different places.
 308          * @param Title $userpage Target user page
 309          * @param Title $talkpage Talk page
 310          * @param User $target Target user object
 311          * @return array
 312          */
 313         public function getUserLinks( Title $userpage, Title $talkpage, User $target ) {
 314
 315                 $id = $target->getId();
 316                 $username = $target->getName();
 317
 318                 $tools[] = Linker::link( $talkpage, $this->msg( 'sp-contributions-talk' )->escaped() );
 319
 320                 if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 321                         if ( $this->getUser()->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 322                                 if ( $target->isBlocked() && $target->getBlock()->getType() != Block::TYPE_AUTO ) {
 323                                         $tools[] = Linker::linkKnown( # Change block link
 324                                                 SpecialPage::getTitleFor( 'Block', $username ),
 325                                                 $this->msg( 'change-blocklink' )->escaped()
 326                                         );
 327                                         $tools[] = Linker::linkKnown( # Unblock link
 328                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 329                                                 $this->msg( 'unblocklink' )->escaped()
 330                                         );
 331                                 } else { # User is not blocked
 332                                         $tools[] = Linker::linkKnown( # Block link
 333                                                 SpecialPage::getTitleFor( 'Block', $username ),
 334                                                 $this->msg( 'blocklink' )->escaped()
 335                                         );
 336                                 }
 337                         }
 338
 339                         # Block log link
 340                         $tools[] = Linker::linkKnown(
 341                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 342                                 $this->msg( 'sp-contributions-blocklog' )->escaped(),
 343                                 array(),
 344                                 array( 'page' => $userpage->getPrefixedText() )
 345                         );
 346
 347                         # Suppression log link (bug 59120)
 348                         if ( $this->getUser()->isAllowed( 'suppressionlog' ) ) {
 349                                 $tools[] = Linker::linkKnown(
 350                                         SpecialPage::getTitleFor( 'Log', 'suppress' ),
 351                                         $this->msg( 'sp-contributions-suppresslog' )->escaped(),
 352                                         array(),
 353                                         array( 'offender' => $username )
 354                                 );
 355                         }
 356                 }
 357                 # Uploads
 358                 $tools[] = Linker::linkKnown(
 359                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 360                         $this->msg( 'sp-contributions-uploads' )->escaped()
 361                 );
 362
 363                 # Other logs link
 364                 $tools[] = Linker::linkKnown(
 365                         SpecialPage::getTitleFor( 'Log', $username ),
 366                         $this->msg( 'sp-contributions-logs' )->escaped()
 367                 );
 368
 369                 # Add link to deleted user contributions for priviledged users
 370                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 371                         $tools[] = Linker::linkKnown(
 372                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 373                                 $this->msg( 'sp-contributions-deleted' )->escaped()
 374                         );
 375                 }
 376
 377                 # Add a link to change user rights for privileged users
 378                 $userrightsPage = new UserrightsPage();
 379                 $userrightsPage->setContext( $this->getContext() );
 380                 if ( $userrightsPage->userCanChangeRights( $target ) ) {
 381                         $tools[] = Linker::linkKnown(
 382                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 383                                 $this->msg( 'sp-contributions-userrights' )->escaped()
 384                         );
 385                 }
 386
 387                 Hooks::run( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 388
 389                 return $tools;
 390         }
 391
 392         /**
 393          * Generates the namespace selector form with hidden attributes.
 394          * @return string HTML fragment
 395          */
 396         protected function getForm() {
 397                 $this->opts['title'] = $this->getPageTitle()->getPrefixedText();
 398                 if ( !isset( $this->opts['target'] ) ) {
 399                         $this->opts['target'] = '';
 400                 } else {
 401                         $this->opts['target'] = str_replace( '_', ' ', $this->opts['target'] );
 402                 }
 403
 404                 if ( !isset( $this->opts['namespace'] ) ) {
 405                         $this->opts['namespace'] = '';
 406                 }
 407
 408                 if ( !isset( $this->opts['nsInvert'] ) ) {
 409                         $this->opts['nsInvert'] = '';
 410                 }
 411
 412                 if ( !isset( $this->opts['associated'] ) ) {
 413                         $this->opts['associated'] = false;
 414                 }
 415
 416                 if ( !isset( $this->opts['contribs'] ) ) {
 417                         $this->opts['contribs'] = 'user';
 418                 }
 419
 420                 if ( !isset( $this->opts['year'] ) ) {
 421                         $this->opts['year'] = '';
 422                 }
 423
 424                 if ( !isset( $this->opts['month'] ) ) {
 425                         $this->opts['month'] = '';
 426                 }
 427
 428                 if ( $this->opts['contribs'] == 'newbie' ) {
 429                         $this->opts['target'] = '';
 430                 }
 431
 432                 if ( !isset( $this->opts['tagfilter'] ) ) {
 433                         $this->opts['tagfilter'] = '';
 434                 }
 435
 436                 if ( !isset( $this->opts['topOnly'] ) ) {
 437                         $this->opts['topOnly'] = false;
 438                 }
 439
 440                 if ( !isset( $this->opts['newOnly'] ) ) {
 441                         $this->opts['newOnly'] = false;
 442                 }
 443
 444                 $form = Html::openElement(
 445                         'form',
 446                         array(
 447                                 'method' => 'get',
 448                                 'action' => wfScript(),
 449                                 'class' => 'mw-contributions-form'
 450                         )
 451                 );
 452
 453                 # Add hidden params for tracking except for parameters in $skipParameters
 454                 $skipParameters = array(
 455                         'namespace',
 456                         'nsInvert',
 457                         'deletedOnly',
 458                         'target',
 459                         'contribs',
 460                         'year',
 461                         'month',
 462                         'topOnly',
 463                         'newOnly',
 464                         'associated',
 465                         'tagfilter'
 466                 );
 467
 468                 foreach ( $this->opts as $name => $value ) {
 469                         if ( in_array( $name, $skipParameters ) ) {
 470                                 continue;
 471                         }
 472                         $form .= "\t" . Html::hidden( $name, $value ) . "\n";
 473                 }
 474
 475                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagfilter'] );
 476
 477                 if ( $tagFilter ) {
 478                         $filterSelection = Html::rawElement(
 479                                 'td',
 480                                 array(),
 481                                 implode( '&#160;', $tagFilter )
 482                         );
 483                 } else {
 484                         $filterSelection = Html::rawElement( 'td', array( 'colspan' => 2 ), '' );
 485                 }
 486
 487                 $this->getOutput()->addModules( 'mediawiki.userSuggest' );
 488
 489                 $labelNewbies = Xml::radioLabel(
 490                         $this->msg( 'sp-contributions-newbies' )->text(),
 491                         'contribs',
 492                         'newbie',
 493                         'newbie',
 494                         $this->opts['contribs'] == 'newbie',
 495                         array( 'class' => 'mw-input' )
 496                 );
 497                 $labelUsername = Xml::radioLabel(
 498                         $this->msg( 'sp-contributions-username' )->text(),
 499                         'contribs',
 500                         'user',
 501                         'user',
 502                         $this->opts['contribs'] == 'user',
 503                         array( 'class' => 'mw-input' )
 504                 );
 505                 $input = Html::input(
 506                         'target',
 507                         $this->opts['target'],
 508                         'text',
 509                         array(
 510                                 'size' => '40',
 511                                 'required' => '',
 512                                 'class' => array(
 513                                         'mw-input',
 514                                         'mw-ui-input-inline',
 515                                         'mw-autocomplete-user', // used by mediawiki.userSuggest
 516                                 ),
 517                         ) + (
 518                                 // Only autofocus if target hasn't been specified or in non-newbies mode
 519                                 ( $this->opts['contribs'] === 'newbie' || $this->opts['target'] )
 520                                         ? array() : array( 'autofocus' => true )
 521                                 )
 522                 );
 523
 524                 $targetSelection = Html::rawElement(
 525                         'td',
 526                         array( 'colspan' => 2 ),
 527                         $labelNewbies . '<br />' . $labelUsername . ' ' . $input . ' '
 528                 );
 529
 530                 $namespaceSelection = Xml::tags(
 531                         'td',
 532                         array(),
 533                         Xml::label(
 534                                 $this->msg( 'namespace' )->text(),
 535                                 'namespace',
 536                                 ''
 537                         ) .
 538                         Html::namespaceSelector(
 539                                 array( 'selected' => $this->opts['namespace'], 'all' => '' ),
 540                                 array(
 541                                         'name' => 'namespace',
 542                                         'id' => 'namespace',
 543                                         'class' => 'namespaceselector',
 544                                 )
 545                         ) . '&#160;' .
 546                                 Html::rawElement(
 547                                         'span',
 548                                         array( 'class' => 'mw-input-with-label' ),
 549                                         Xml::checkLabel(
 550                                                 $this->msg( 'invert' )->text(),
 551                                                 'nsInvert',
 552                                                 'nsInvert',
 553                                                 $this->opts['nsInvert'],
 554                                                 array(
 555                                                         'title' => $this->msg( 'tooltip-invert' )->text(),
 556                                                         'class' => 'mw-input'
 557                                                 )
 558                                         ) . '&#160;'
 559                                 ) .
 560                                 Html::rawElement( 'span', array( 'class' => 'mw-input-with-label' ),
 561                                         Xml::checkLabel(
 562                                                 $this->msg( 'namespace_association' )->text(),
 563                                                 'associated',
 564                                                 'associated',
 565                                                 $this->opts['associated'],
 566                                                 array(
 567                                                         'title' => $this->msg( 'tooltip-namespace_association' )->text(),
 568                                                         'class' => 'mw-input'
 569                                                 )
 570                                         ) . '&#160;'
 571                                 )
 572                 );
 573
 574                 $filters = array();
 575
 576                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 577                         $filters[] = Html::rawElement(
 578                                 'span',
 579                                 array( 'class' => 'mw-input-with-label' ),
 580                                 Xml::checkLabel(
 581                                         $this->msg( 'history-show-deleted' )->text(),
 582                                         'deletedOnly',
 583                                         'mw-show-deleted-only',
 584                                         $this->opts['deletedOnly'],
 585                                         array( 'class' => 'mw-input' )
 586                                 )
 587                         );
 588                 }
 589
 590                 $filters[] = Html::rawElement(
 591                         'span',
 592                         array( 'class' => 'mw-input-with-label' ),
 593                         Xml::checkLabel(
 594                                 $this->msg( 'sp-contributions-toponly' )->text(),
 595                                 'topOnly',
 596                                 'mw-show-top-only',
 597                                 $this->opts['topOnly'],
 598                                 array( 'class' => 'mw-input' )
 599                         )
 600                 );
 601                 $filters[] = Html::rawElement(
 602                         'span',
 603                         array( 'class' => 'mw-input-with-label' ),
 604                         Xml::checkLabel(
 605                                 $this->msg( 'sp-contributions-newonly' )->text(),
 606                                 'newOnly',
 607                                 'mw-show-new-only',
 608                                 $this->opts['newOnly'],
 609                                 array( 'class' => 'mw-input' )
 610                         )
 611                 );
 612
 613                 Hooks::run(
 614                         'SpecialContributions::getForm::filters',
 615                         array( $this, &$filters )
 616                 );
 617
 618                 $extraOptions = Html::rawElement(
 619                         'td',
 620                         array( 'colspan' => 2 ),
 621                         implode( '', $filters )
 622                 );
 623
 624                 $dateSelectionAndSubmit = Xml::tags( 'td', array( 'colspan' => 2 ),
 625                         Xml::dateMenu(
 626                                 $this->opts['year'] === '' ? MWTimestamp::getInstance()->format( 'Y' ) : $this->opts['year'],
 627                                 $this->opts['month']
 628                         ) . ' ' .
 629                                 Html::submitButton(
 630                                         $this->msg( 'sp-contributions-submit' )->text(),
 631                                         array( 'class' => 'mw-submit' ), array( 'mw-ui-progressive' )
 632                                 )
 633                 );
 634
 635                 $form .= Xml::fieldset( $this->msg( 'sp-contributions-search' )->text() );
 636                 $form .= Html::rawElement( 'table', array( 'class' => 'mw-contributions-table' ), "\n" .
 637                         Html::rawElement( 'tr', array(), $targetSelection ) . "\n" .
 638                         Html::rawElement( 'tr', array(), $namespaceSelection ) . "\n" .
 639                         Html::rawElement( 'tr', array(), $filterSelection ) . "\n" .
 640                         Html::rawElement( 'tr', array(), $extraOptions ) . "\n" .
 641                         Html::rawElement( 'tr', array(), $dateSelectionAndSubmit ) . "\n"
 642                 );
 643
 644                 $explain = $this->msg( 'sp-contributions-explain' );
 645                 if ( !$explain->isBlank() ) {
 646                         $form .= "<p id='mw-sp-contributions-explain'>{$explain->parse()}</p>";
 647                 }
 648
 649                 $form .= Xml::closeElement( 'fieldset' ) . Xml::closeElement( 'form' );
 650
 651                 return $form;
 652         }
 653
 654         /**
 655          * Return an array of subpages beginning with $search that this special page will accept.
 656          *
 657          * @param string $search Prefix to search for
 658          * @param int $limit Maximum number of results to return (usually 10)
 659          * @param int $offset Number of results to skip (usually 0)
 660          * @return string[] Matching subpages
 661          */
 662         public function prefixSearchSubpages( $search, $limit, $offset ) {
 663                 $user = User::newFromName( $search );
 664                 if ( !$user ) {
 665                         // No prefix suggestion for invalid user
 666                         return array();
 667                 }
 668                 // Autocomplete subpage as user list - public to allow caching
 669                 return UserNamePrefixSearch::search( 'public', $search, $limit, $offset );
 670         }
 671
 672         protected function getGroupName() {
 673                 return 'users';
 674         }
 675 }
 676
 677 /**
 678  * Pager for Special:Contributions
 679  * @ingroup SpecialPage Pager
 680  */
 681 class ContribsPager extends ReverseChronologicalPager {
 682         public $mDefaultDirection = IndexPager::DIR_DESCENDING;
 683         public $messages;
 684         public $target;
 685         public $namespace = '';
 686         public $mDb;
 687         public $preventClickjacking = false;
 688
 689         /** @var IDatabase */
 690         public $mDbSecondary;
 691
 692         /**
 693          * @var array
 694          */
 695         protected $mParentLens;
 696
 697         function __construct( IContextSource $context, array $options ) {
 698                 parent::__construct( $context );
 699
 700                 $msgs = array(
 701                         'diff',
 702                         'hist',
 703                         'pipe-separator',
 704                         'uctop'
 705                 );
 706
 707                 foreach ( $msgs as $msg ) {
 708                         $this->messages[$msg] = $this->msg( $msg )->escaped();
 709                 }
 710
 711                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 712                 $this->contribs = isset( $options['contribs'] ) ? $options['contribs'] : 'users';
 713                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 714                 $this->tagFilter = isset( $options['tagfilter'] ) ? $options['tagfilter'] : false;
 715                 $this->nsInvert = isset( $options['nsInvert'] ) ? $options['nsInvert'] : false;
 716                 $this->associated = isset( $options['associated'] ) ? $options['associated'] : false;
 717
 718                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 719                 $this->topOnly = !empty( $options['topOnly'] );
 720                 $this->newOnly = !empty( $options['newOnly'] );
 721
 722                 $year = isset( $options['year'] ) ? $options['year'] : false;
 723                 $month = isset( $options['month'] ) ? $options['month'] : false;
 724                 $this->getDateCond( $year, $month );
 725
 726                 // Most of this code will use the 'contributions' group DB, which can map to slaves
 727                 // with extra user based indexes or partioning by user. The additional metadata
 728                 // queries should use a regular slave since the lookup pattern is not all by user.
 729                 $this->mDbSecondary = wfGetDB( DB_SLAVE ); // any random slave
 730                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 731         }
 732
 733         function getDefaultQuery() {
 734                 $query = parent::getDefaultQuery();
 735                 $query['target'] = $this->target;
 736
 737                 return $query;
 738         }
 739
 740         /**
 741          * This method basically executes the exact same code as the parent class, though with
 742          * a hook added, to allow extensions to add additional queries.
 743          *
 744          * @param string $offset Index offset, inclusive
 745          * @param int $limit Exact query limit
 746          * @param bool $descending Query direction, false for ascending, true for descending
 747          * @return ResultWrapper
 748          */
 749         function reallyDoQuery( $offset, $limit, $descending ) {
 750                 list( $tables, $fields, $conds, $fname, $options, $join_conds ) = $this->buildQueryInfo(
 751                         $offset,
 752                         $limit,
 753                         $descending
 754                 );
 755
 756                 /*
 757                  * This hook will allow extensions to add in additional queries, so they can get their data
 758                  * in My Contributions as well. Extensions should append their results to the $data array.
 759                  *
 760                  * Extension queries have to implement the navbar requirement as well. They should
 761                  * - have a column aliased as $pager->getIndexField()
 762                  * - have LIMIT set
 763                  * - have a WHERE-clause that compares the $pager->getIndexField()-equivalent column to the offset
 764                  * - have the ORDER BY specified based upon the details provided by the navbar
 765                  *
 766                  * See includes/Pager.php buildQueryInfo() method on how to build LIMIT, WHERE & ORDER BY
 767                  *
 768                  * &$data: an array of results of all contribs queries
 769                  * $pager: the ContribsPager object hooked into
 770                  * $offset: see phpdoc above
 771                  * $limit: see phpdoc above
 772                  * $descending: see phpdoc above
 773                  */
 774                 $data = array( $this->mDb->select(
 775                         $tables, $fields, $conds, $fname, $options, $join_conds
 776                 ) );
 777                 Hooks::run(
 778                         'ContribsPager::reallyDoQuery',
 779                         array( &$data, $this, $offset, $limit, $descending )
 780                 );
 781
 782                 $result = array();
 783
 784                 // loop all results and collect them in an array
 785                 foreach ( $data as $query ) {
 786                         foreach ( $query as $i => $row ) {
 787                                 // use index column as key, allowing us to easily sort in PHP
 788                                 $result[$row->{$this->getIndexField()} . "-$i"] = $row;
 789                         }
 790                 }
 791
 792                 // sort results
 793                 if ( $descending ) {
 794                         ksort( $result );
 795                 } else {
 796                         krsort( $result );
 797                 }
 798
 799                 // enforce limit
 800                 $result = array_slice( $result, 0, $limit );
 801
 802                 // get rid of array keys
 803                 $result = array_values( $result );
 804
 805                 return new FakeResultWrapper( $result );
 806         }
 807
 808         function getQueryInfo() {
 809                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 810
 811                 $user = $this->getUser();
 812                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 813
 814                 // Paranoia: avoid brute force searches (bug 17342)
 815                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 816                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0';
 817                 } elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
 818                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::SUPPRESSED_USER ) .
 819                                 ' != ' . Revision::SUPPRESSED_USER;
 820                 }
 821
 822                 # Don't include orphaned revisions
 823                 $join_cond['page'] = Revision::pageJoinCond();
 824                 # Get the current user name for accounts
 825                 $join_cond['user'] = Revision::userJoinCond();
 826
 827                 $options = array();
 828                 if ( $index ) {
 829                         $options['USE INDEX'] = array( 'revision' => $index );
 830                 }
 831
 832                 $queryInfo = array(
 833                         'tables' => $tables,
 834                         'fields' => array_merge(
 835                                 Revision::selectFields(),
 836                                 Revision::selectUserFields(),
 837                                 array( 'page_namespace', 'page_title', 'page_is_new',
 838                                         'page_latest', 'page_is_redirect', 'page_len' )
 839                         ),
 840                         'conds' => $conds,
 841                         'options' => $options,
 842                         'join_conds' => $join_cond
 843                 );
 844
 845                 ChangeTags::modifyDisplayQuery(
 846                         $queryInfo['tables'],
 847                         $queryInfo['fields'],
 848                         $queryInfo['conds'],
 849                         $queryInfo['join_conds'],
 850                         $queryInfo['options'],
 851                         $this->tagFilter
 852                 );
 853
 854                 Hooks::run( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 855
 856                 return $queryInfo;
 857         }
 858
 859         function getUserCond() {
 860                 $condition = array();
 861                 $join_conds = array();
 862                 $tables = array( 'revision', 'page', 'user' );
 863                 $index = false;
 864                 if ( $this->contribs == 'newbie' ) {
 865                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 866                         $condition[] = 'rev_user >' . (int)( $max - $max / 100 );
 867                         # ignore local groups with the bot right
 868                         # @todo FIXME: Global groups may have 'bot' rights
 869                         $groupsWithBotPermission = User::getGroupsWithPermission( 'bot' );
 870                         if ( count( $groupsWithBotPermission ) ) {
 871                                 $tables[] = 'user_groups';
 872                                 $condition[] = 'ug_group IS NULL';
 873                                 $join_conds['user_groups'] = array(
 874                                         'LEFT JOIN', array(
 875                                                 'ug_user = rev_user',
 876                                                 'ug_group' => $groupsWithBotPermission
 877                                         )
 878                                 );
 879                         }
 880                 } else {
 881                         $uid = User::idFromName( $this->target );
 882                         if ( $uid ) {
 883                                 $condition['rev_user'] = $uid;
 884                                 $index = 'user_timestamp';
 885                         } else {
 886                                 $condition['rev_user_text'] = $this->target;
 887                                 $index = 'usertext_timestamp';
 888                         }
 889                 }
 890
 891                 if ( $this->deletedOnly ) {
 892                         $condition[] = 'rev_deleted != 0';
 893                 }
 894
 895                 if ( $this->topOnly ) {
 896                         $condition[] = 'rev_id = page_latest';
 897                 }
 898
 899                 if ( $this->newOnly ) {
 900                         $condition[] = 'rev_parent_id = 0';
 901                 }
 902
 903                 return array( $tables, $index, $condition, $join_conds );
 904         }
 905
 906         function getNamespaceCond() {
 907                 if ( $this->namespace !== '' ) {
 908                         $selectedNS = $this->mDb->addQuotes( $this->namespace );
 909                         $eq_op = $this->nsInvert ? '!=' : '=';
 910                         $bool_op = $this->nsInvert ? 'AND' : 'OR';
 911
 912                         if ( !$this->associated ) {
 913                                 return array( "page_namespace $eq_op $selectedNS" );
 914                         }
 915
 916                         $associatedNS = $this->mDb->addQuotes(
 917                                 MWNamespace::getAssociated( $this->namespace )
 918                         );
 919
 920                         return array(
 921                                 "page_namespace $eq_op $selectedNS " .
 922                                         $bool_op .
 923                                         " page_namespace $eq_op $associatedNS"
 924                         );
 925                 }
 926
 927                 return array();
 928         }
 929
 930         function getIndexField() {
 931                 return 'rev_timestamp';
 932         }
 933
 934         function doBatchLookups() {
 935                 # Do a link batch query
 936                 $this->mResult->seek( 0 );
 937                 $revIds = array();
 938                 $batch = new LinkBatch();
 939                 # Give some pointers to make (last) links
 940                 foreach ( $this->mResult as $row ) {
 941                         if ( isset( $row->rev_parent_id ) && $row->rev_parent_id ) {
 942                                 $revIds[] = $row->rev_parent_id;
 943                         }
 944                         if ( isset( $row->rev_id ) ) {
 945                                 if ( $this->contribs === 'newbie' ) { // multiple users
 946                                         $batch->add( NS_USER, $row->user_name );
 947                                         $batch->add( NS_USER_TALK, $row->user_name );
 948                                 }
 949                                 $batch->add( $row->page_namespace, $row->page_title );
 950                         }
 951                 }
 952                 $this->mParentLens = Revision::getParentLengths( $this->mDbSecondary, $revIds );
 953                 $batch->execute();
 954                 $this->mResult->seek( 0 );
 955         }
 956
 957         /**
 958          * @return string
 959          */
 960         function getStartBody() {
 961                 return "<ul class=\"mw-contributions-list\">\n";
 962         }
 963
 964         /**
 965          * @return string
 966          */
 967         function getEndBody() {
 968                 return "</ul>\n";
 969         }
 970
 971         /**
 972          * Generates each row in the contributions list.
 973          *
 974          * Contributions which are marked "top" are currently on top of the history.
 975          * For these contributions, a [rollback] link is shown for users with roll-
 976          * back privileges. The rollback link restores the most recent version that
 977          * was not written by the target user.
 978          *
 979          * @todo This would probably look a lot nicer in a table.
 980          * @param object $row
 981          * @return string
 982          */
 983         function formatRow( $row ) {
 984
 985                 $ret = '';
 986                 $classes = array();
 987
 988                 /*
 989                  * There may be more than just revision rows. To make sure that we'll only be processing
 990                  * revisions here, let's _try_ to build a revision out of our row (without displaying
 991                  * notices though) and then trying to grab data from the built object. If we succeed,
 992                  * we're definitely dealing with revision data and we may proceed, if not, we'll leave it
 993                  * to extensions to subscribe to the hook to parse the row.
 994                  */
 995                 MediaWiki\suppressWarnings();
 996                 try {
 997                         $rev = new Revision( $row );
 998                         $validRevision = (bool)$rev->getId();
 999                 } catch ( Exception $e ) {
1000                         $validRevision = false;
1001                 }
1002                 MediaWiki\restoreWarnings();
1003
1004                 if ( $validRevision ) {
1005                         $classes = array();
1006
1007                         $page = Title::newFromRow( $row );
1008                         $link = Linker::link(
1009                                 $page,
1010                                 htmlspecialchars( $page->getPrefixedText() ),
1011                                 array( 'class' => 'mw-contributions-title' ),
1012                                 $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
1013                         );
1014                         # Mark current revisions
1015                         $topmarktext = '';
1016                         $user = $this->getUser();
1017                         if ( $row->rev_id == $row->page_latest ) {
1018                                 $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
1019                                 # Add rollback link
1020                                 if ( !$row->page_is_new && $page->quickUserCan( 'rollback', $user )
1021                                         && $page->quickUserCan( 'edit', $user )
1022                                 ) {
1023                                         $this->preventClickjacking();
1024                                         $topmarktext .= ' ' . Linker::generateRollback( $rev, $this->getContext() );
1025                                 }
1026                         }
1027                         # Is there a visible previous revision?
1028                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) && $rev->getParentId() !== 0 ) {
1029                                 $difftext = Linker::linkKnown(
1030                                         $page,
1031                                         $this->messages['diff'],
1032                                         array(),
1033                                         array(
1034                                                 'diff' => 'prev',
1035                                                 'oldid' => $row->rev_id
1036                                         )
1037                                 );
1038                         } else {
1039                                 $difftext = $this->messages['diff'];
1040                         }
1041                         $histlink = Linker::linkKnown(
1042                                 $page,
1043                                 $this->messages['hist'],
1044                                 array(),
1045                                 array( 'action' => 'history' )
1046                         );
1047
1048                         if ( $row->rev_parent_id === null ) {
1049                                 // For some reason rev_parent_id isn't populated for this row.
1050                                 // Its rumoured this is true on wikipedia for some revisions (bug 34922).
1051                                 // Next best thing is to have the total number of bytes.
1052                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
1053                                 $chardiff .= Linker::formatRevisionSize( $row->rev_len );
1054                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
1055                         } else {
1056                                 $parentLen = 0;
1057                                 if ( isset( $this->mParentLens[$row->rev_parent_id] ) ) {
1058                                         $parentLen = $this->mParentLens[$row->rev_parent_id];
1059                                 }
1060
1061                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
1062                                 $chardiff .= ChangesList::showCharacterDifference(
1063                                         $parentLen,
1064                                         $row->rev_len,
1065                                         $this->getContext()
1066                                 );
1067                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
1068                         }
1069
1070                         $lang = $this->getLanguage();
1071                         $comment = $lang->getDirMark() . Linker::revComment( $rev, false, true );
1072                         $date = $lang->userTimeAndDate( $row->rev_timestamp, $user );
1073                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) ) {
1074                                 $d = Linker::linkKnown(
1075                                         $page,
1076                                         htmlspecialchars( $date ),
1077                                         array( 'class' => 'mw-changeslist-date' ),
1078                                         array( 'oldid' => intval( $row->rev_id ) )
1079                                 );
1080                         } else {
1081                                 $d = htmlspecialchars( $date );
1082                         }
1083                         if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
1084                                 $d = '<span class="history-deleted">' . $d . '</span>';
1085                         }
1086
1087                         # Show user names for /newbies as there may be different users.
1088                         # Note that we already excluded rows with hidden user names.
1089                         if ( $this->contribs == 'newbie' ) {
1090                                 $userlink = ' . . ' . $lang->getDirMark()
1091                                         . Linker::userLink( $rev->getUser(), $rev->getUserText() );
1092                                 $userlink .= ' ' . $this->msg( 'parentheses' )->rawParams(
1093                                         Linker::userTalkLink( $rev->getUser(), $rev->getUserText() ) )->escaped() . ' ';
1094                         } else {
1095                                 $userlink = '';
1096                         }
1097
1098                         if ( $rev->getParentId() === 0 ) {
1099                                 $nflag = ChangesList::flag( 'newpage' );
1100                         } else {
1101                                 $nflag = '';
1102                         }
1103
1104                         if ( $rev->isMinor() ) {
1105                                 $mflag = ChangesList::flag( 'minor' );
1106                         } else {
1107                                 $mflag = '';
1108                         }
1109
1110                         $del = Linker::getRevDeleteLink( $user, $rev, $page );
1111                         if ( $del !== '' ) {
1112                                 $del .= ' ';
1113                         }
1114
1115                         $diffHistLinks = $this->msg( 'parentheses' )
1116                                 ->rawParams( $difftext . $this->messages['pipe-separator'] . $histlink )
1117                                 ->escaped();
1118                         $ret = "{$del}{$d} {$diffHistLinks}{$chardiff}{$nflag}{$mflag} ";
1119                         $ret .= "{$link}{$userlink} {$comment} {$topmarktext}";
1120
1121                         # Denote if username is redacted for this edit
1122                         if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
1123                                 $ret .= " <strong>" .
1124                                         $this->msg( 'rev-deleted-user-contribs' )->escaped() .
1125                                         "</strong>";
1126                         }
1127
1128                         # Tags, if any.
1129                         list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow(
1130                                 $row->ts_tags,
1131                                 'contributions',
1132                                 $this->getContext()
1133                         );
1134                         $classes = array_merge( $classes, $newClasses );
1135                         $ret .= " $tagSummary";
1136                 }
1137
1138                 // Let extensions add data
1139                 Hooks::run( 'ContributionsLineEnding', array( $this, &$ret, $row, &$classes ) );
1140
1141                 if ( $classes === array() && $ret === '' ) {
1142                         wfDebug( "Dropping Special:Contribution row that could not be formatted\n" );
1143                         $ret = "<!-- Could not format Special:Contribution row. -->\n";
1144                 } else {
1145                         $ret = Html::rawElement( 'li', array( 'class' => $classes ), $ret ) . "\n";
1146                 }
1147
1148                 return $ret;
1149         }
1150
1151         /**
1152          * Overwrite Pager function and return a helpful comment
1153          * @return string
1154          */
1155         function getSqlComment() {
1156                 if ( $this->namespace || $this->deletedOnly ) {
1157                         // potentially slow, see CR r58153
1158                         return 'contributions page filtered for namespace or RevisionDeleted edits';
1159                 } else {
1160                         return 'contributions page unfiltered';
1161                 }
1162         }
1163
1164         protected function preventClickjacking() {
1165                 $this->preventClickjacking = true;
1166         }
1167
1168         /**
1169          * @return bool
1170          */
1171         public function getPreventClickjacking() {
1172                 return $this->preventClickjacking;
1173         }
1174 }