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