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