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