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