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 SpecialPage {
  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                         $out->addHTML( $this->getForm() );
  67
  68                         return;
  69                 }
  70
  71                 $user = $this->getUser();
  72
  73                 $this->opts['limit'] = $request->getInt( 'limit', $user->getOption( 'rclimit' ) );
  74                 $this->opts['target'] = $target;
  75                 $this->opts['topOnly'] = $request->getBool( 'topOnly' );
  76
  77                 $nt = Title::makeTitleSafe( NS_USER, $target );
  78                 if ( !$nt ) {
  79                         $out->addHTML( $this->getForm() );
  80
  81                         return;
  82                 }
  83                 $userObj = User::newFromName( $nt->getText(), false );
  84                 if ( !$userObj ) {
  85                         $out->addHTML( $this->getForm() );
  86
  87                         return;
  88                 }
  89                 $id = $userObj->getID();
  90
  91                 if ( $this->opts['contribs'] != 'newbie' ) {
  92                         $target = $nt->getText();
  93                         $out->addSubtitle( $this->contributionsSub( $userObj ) );
  94                         $out->setHTMLTitle( $this->msg(
  95                                 'pagetitle',
  96                                 $this->msg( 'contributions-title', $target )->plain()
  97                         ) );
  98                         $this->getSkin()->setRelevantUser( $userObj );
  99                 } else {
 100                         $out->addSubtitle( $this->msg( 'sp-contributions-newbies-sub' ) );
 101                         $out->setHTMLTitle( $this->msg(
 102                                 'pagetitle',
 103                                 $this->msg( 'sp-contributions-newbies-title' )->plain()
 104                         ) );
 105                 }
 106
 107                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 108                         $this->opts['namespace'] = intval( $ns );
 109                 } else {
 110                         $this->opts['namespace'] = '';
 111                 }
 112
 113                 $this->opts['associated'] = $request->getBool( 'associated' );
 114                 $this->opts['nsInvert'] = (bool)$request->getVal( 'nsInvert' );
 115                 $this->opts['tagfilter'] = (string)$request->getVal( 'tagfilter' );
 116
 117                 // Allows reverts to have the bot flag in recent changes. It is just here to
 118                 // be passed in the form at the top of the page
 119                 if ( $user->isAllowed( 'markbotedits' ) && $request->getBool( 'bot' ) ) {
 120                         $this->opts['bot'] = '1';
 121                 }
 122
 123                 $skip = $request->getText( 'offset' ) || $request->getText( 'dir' ) == 'prev';
 124                 # Offset overrides year/month selection
 125                 if ( $skip ) {
 126                         $this->opts['year'] = '';
 127                         $this->opts['month'] = '';
 128                 } else {
 129                         $this->opts['year'] = $request->getIntOrNull( 'year' );
 130                         $this->opts['month'] = $request->getIntOrNull( 'month' );
 131                 }
 132
 133                 $feedType = $request->getVal( 'feed' );
 134                 if ( $feedType ) {
 135                         // Maintain some level of backwards compatability
 136                         // If people request feeds using the old parameters, redirect to API
 137                         $apiParams = array(
 138                                 'action' => 'feedcontributions',
 139                                 'feedformat' => $feedType,
 140                                 'user' => $target,
 141                         );
 142                         if ( $this->opts['topOnly'] ) {
 143                                 $apiParams['toponly'] = true;
 144                         }
 145                         if ( $this->opts['deletedOnly'] ) {
 146                                 $apiParams['deletedonly'] = true;
 147                         }
 148                         if ( $this->opts['tagfilter'] !== '' ) {
 149                                 $apiParams['tagfilter'] = $this->opts['tagfilter'];
 150                         }
 151                         if ( $this->opts['namespace'] !== '' ) {
 152                                 $apiParams['namespace'] = $this->opts['namespace'];
 153                         }
 154                         if ( $this->opts['year'] !== null ) {
 155                                 $apiParams['year'] = $this->opts['year'];
 156                         }
 157                         if ( $this->opts['month'] !== null ) {
 158                                 $apiParams['month'] = $this->opts['month'];
 159                         }
 160
 161                         $url = wfAppendQuery( wfScript( 'api' ), $apiParams );
 162
 163                         $out->redirect( $url, '301' );
 164
 165                         return;
 166                 }
 167
 168                 // Add RSS/atom links
 169                 $this->addFeedLinks( array( 'action' => 'feedcontributions', 'user' => $target ) );
 170
 171                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 172                         $out->addHTML( $this->getForm() );
 173
 174                         $pager = new ContribsPager( $this->getContext(), array(
 175                                 'target' => $target,
 176                                 'contribs' => $this->opts['contribs'],
 177                                 'namespace' => $this->opts['namespace'],
 178                                 'year' => $this->opts['year'],
 179                                 'month' => $this->opts['month'],
 180                                 'deletedOnly' => $this->opts['deletedOnly'],
 181                                 'topOnly' => $this->opts['topOnly'],
 182                                 'nsInvert' => $this->opts['nsInvert'],
 183                                 'associated' => $this->opts['associated'],
 184                         ) );
 185
 186                         if ( !$pager->getNumRows() ) {
 187                                 $out->addWikiMsg( 'nocontribs', $target );
 188                         } else {
 189                                 # Show a message about slave lag, if applicable
 190                                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 191                                 if ( $lag > 0 ) {
 192                                         $out->showLagWarning( $lag );
 193                                 }
 194
 195                                 $out->addHTML(
 196                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 197                                                 $pager->getBody() .
 198                                                 '<p>' . $pager->getNavigationBar() . '</p>'
 199                                 );
 200                         }
 201                         $out->preventClickjacking( $pager->getPreventClickjacking() );
 202
 203                         # Show the appropriate "footer" message - WHOIS tools, etc.
 204                         if ( $this->opts['contribs'] == 'newbie' ) {
 205                                 $message = 'sp-contributions-footer-newbies';
 206                         } elseif ( IP::isIPAddress( $target ) ) {
 207                                 $message = 'sp-contributions-footer-anon';
 208                         } elseif ( $userObj->isAnon() ) {
 209                                 // No message for non-existing users
 210                                 $message = '';
 211                         } else {
 212                                 $message = 'sp-contributions-footer';
 213                         }
 214
 215                         if ( $message ) {
 216                                 if ( !$this->msg( $message, $target )->isDisabled() ) {
 217                                         $out->wrapWikiMsg(
 218                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 219                                                 array( $message, $target ) );
 220                                 }
 221                         }
 222                 }
 223         }
 224
 225         /**
 226          * Generates the subheading with links
 227          * @param $userObj User object for the target
 228          * @return String: appropriately-escaped HTML to be output literally
 229          * @todo FIXME: Almost the same as getSubTitle in SpecialDeletedContributions.php. Could be combined.
 230          */
 231         protected function contributionsSub( $userObj ) {
 232                 if ( $userObj->isAnon() ) {
 233                         $user = htmlspecialchars( $userObj->getName() );
 234                 } else {
 235                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 236                 }
 237                 $nt = $userObj->getUserPage();
 238                 $talk = $userObj->getTalkPage();
 239                 $links = '';
 240                 if ( $talk ) {
 241                         $tools = $this->getUserLinks( $nt, $talk, $userObj );
 242                         $links = $this->getLanguage()->pipeList( $tools );
 243
 244                         // Show a note if the user is blocked and display the last block log entry.
 245                         // Do not expose the autoblocks, since that may lead to a leak of accounts' IPs,
 246                         // and also this will display a totally irrelevant log entry as a current block.
 247                         if ( $userObj->isBlocked() && $userObj->getBlock()->getType() != Block::TYPE_AUTO ) {
 248                                 $out = $this->getOutput(); // showLogExtract() wants first parameter by reference
 249                                 LogEventsList::showLogExtract(
 250                                         $out,
 251                                         'block',
 252                                         $nt,
 253                                         '',
 254                                         array(
 255                                                 'lim' => 1,
 256                                                 'showIfEmpty' => false,
 257                                                 'msgKey' => array(
 258                                                         $userObj->isAnon() ?
 259                                                                 'sp-contributions-blocked-notice-anon' :
 260                                                                 'sp-contributions-blocked-notice',
 261                                                         $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 262                                                 ),
 263                                                 'offset' => '' # don't use WebRequest parameter offset
 264                                         )
 265                                 );
 266                         }
 267                 }
 268
 269                 // Old message 'contribsub' had one parameter, but that doesn't work for
 270                 // languages that want to put the "for" bit right after $user but before
 271                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 272                 // otherwise use 'contribsub2'.
 273                 // @todo Should this be removed at some point?
 274                 $oldMsg = $this->msg( 'contribsub' );
 275                 if ( $oldMsg->exists() ) {
 276                         $linksWithParentheses = $this->msg( 'parentheses' )->rawParams( $links )->escaped();
 277
 278                         return $oldMsg->rawParams( "$user $linksWithParentheses" );
 279                 }
 280
 281                 return $this->msg( 'contribsub2' )->rawParams( $user, $links );
 282         }
 283
 284         /**
 285          * Links to different places.
 286          * @param $userpage Title: Target user page
 287          * @param $talkpage Title: Talk page
 288          * @param $target User: Target user object
 289          * @return array
 290          */
 291         public function getUserLinks( Title $userpage, Title $talkpage, User $target ) {
 292
 293                 $id = $target->getId();
 294                 $username = $target->getName();
 295
 296                 $tools[] = Linker::link( $talkpage, $this->msg( 'sp-contributions-talk' )->escaped() );
 297
 298                 if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 299                         if ( $this->getUser()->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 300                                 if ( $target->isBlocked() ) {
 301                                         $tools[] = Linker::linkKnown( # Change block link
 302                                                 SpecialPage::getTitleFor( 'Block', $username ),
 303                                                 $this->msg( 'change-blocklink' )->escaped()
 304                                         );
 305                                         $tools[] = Linker::linkKnown( # Unblock link
 306                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 307                                                 $this->msg( 'unblocklink' )->escaped()
 308                                         );
 309                                 } else { # User is not blocked
 310                                         $tools[] = Linker::linkKnown( # Block link
 311                                                 SpecialPage::getTitleFor( 'Block', $username ),
 312                                                 $this->msg( 'blocklink' )->escaped()
 313                                         );
 314                                 }
 315                         }
 316
 317                         # Block log link
 318                         $tools[] = Linker::linkKnown(
 319                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 320                                 $this->msg( 'sp-contributions-blocklog' )->escaped(),
 321                                 array(),
 322                                 array( 'page' => $userpage->getPrefixedText() )
 323                         );
 324                 }
 325                 # Uploads
 326                 $tools[] = Linker::linkKnown(
 327                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 328                         $this->msg( 'sp-contributions-uploads' )->escaped()
 329                 );
 330
 331                 # Other logs link
 332                 $tools[] = Linker::linkKnown(
 333                         SpecialPage::getTitleFor( 'Log', $username ),
 334                         $this->msg( 'sp-contributions-logs' )->escaped()
 335                 );
 336
 337                 # Add link to deleted user contributions for priviledged users
 338                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 339                         $tools[] = Linker::linkKnown(
 340                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 341                                 $this->msg( 'sp-contributions-deleted' )->escaped()
 342                         );
 343                 }
 344
 345                 # Add a link to change user rights for privileged users
 346                 $userrightsPage = new UserrightsPage();
 347                 $userrightsPage->setContext( $this->getContext() );
 348                 if ( $userrightsPage->userCanChangeRights( $target ) ) {
 349                         $tools[] = Linker::linkKnown(
 350                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 351                                 $this->msg( 'sp-contributions-userrights' )->escaped()
 352                         );
 353                 }
 354
 355                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 356
 357                 return $tools;
 358         }
 359
 360         /**
 361          * Generates the namespace selector form with hidden attributes.
 362          * @return String: HTML fragment
 363          */
 364         protected function getForm() {
 365                 global $wgScript;
 366
 367                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 368                 if ( !isset( $this->opts['target'] ) ) {
 369                         $this->opts['target'] = '';
 370                 } else {
 371                         $this->opts['target'] = str_replace( '_', ' ', $this->opts['target'] );
 372                 }
 373
 374                 if ( !isset( $this->opts['namespace'] ) ) {
 375                         $this->opts['namespace'] = '';
 376                 }
 377
 378                 if ( !isset( $this->opts['nsInvert'] ) ) {
 379                         $this->opts['nsInvert'] = '';
 380                 }
 381
 382                 if ( !isset( $this->opts['associated'] ) ) {
 383                         $this->opts['associated'] = false;
 384                 }
 385
 386                 if ( !isset( $this->opts['contribs'] ) ) {
 387                         $this->opts['contribs'] = 'user';
 388                 }
 389
 390                 if ( !isset( $this->opts['year'] ) ) {
 391                         $this->opts['year'] = '';
 392                 }
 393
 394                 if ( !isset( $this->opts['month'] ) ) {
 395                         $this->opts['month'] = '';
 396                 }
 397
 398                 if ( $this->opts['contribs'] == 'newbie' ) {
 399                         $this->opts['target'] = '';
 400                 }
 401
 402                 if ( !isset( $this->opts['tagfilter'] ) ) {
 403                         $this->opts['tagfilter'] = '';
 404                 }
 405
 406                 if ( !isset( $this->opts['topOnly'] ) ) {
 407                         $this->opts['topOnly'] = false;
 408                 }
 409
 410                 $form = Html::openElement(
 411                         'form',
 412                         array(
 413                                 'method' => 'get',
 414                                 'action' => $wgScript,
 415                                 'class' => 'mw-contributions-form'
 416                         )
 417                 );
 418
 419                 # Add hidden params for tracking except for parameters in $skipParameters
 420                 $skipParameters = array(
 421                         'namespace',
 422                         'nsInvert',
 423                         'deletedOnly',
 424                         'target',
 425                         'contribs',
 426                         'year',
 427                         'month',
 428                         'topOnly',
 429                         'associated'
 430                 );
 431
 432                 foreach ( $this->opts as $name => $value ) {
 433                         if ( in_array( $name, $skipParameters ) ) {
 434                                 continue;
 435                         }
 436                         $form .= "\t" . Html::hidden( $name, $value ) . "\n";
 437                 }
 438
 439                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagfilter'] );
 440
 441                 if ( $tagFilter ) {
 442                         $filterSelection = Html::rawElement(
 443                                 'td',
 444                                 array( 'class' => 'mw-label' ),
 445                                 array_shift( $tagFilter )
 446                         );
 447                         $filterSelection .= Html::rawElement(
 448                                 'td',
 449                                 array( 'class' => 'mw-input' ),
 450                                 implode( '&#160', $tagFilter )
 451                         );
 452                 } else {
 453                         $filterSelection = Html::rawElement( 'td', array( 'colspan' => 2 ), '' );
 454                 }
 455
 456                 $labelNewbies = Xml::radioLabel(
 457                         $this->msg( 'sp-contributions-newbies' )->text(),
 458                         'contribs',
 459                         'newbie',
 460                         'newbie',
 461                         $this->opts['contribs'] == 'newbie',
 462                         array( 'class' => 'mw-input' )
 463                 );
 464                 $labelUsername = Xml::radioLabel(
 465                         $this->msg( 'sp-contributions-username' )->text(),
 466                         'contribs',
 467                         'user',
 468                         'user',
 469                         $this->opts['contribs'] == 'user',
 470                         array( 'class' => 'mw-input' )
 471                 );
 472                 $input = Html::input(
 473                         'target',
 474                         $this->opts['target'],
 475                         'text',
 476                         array( 'size' => '40', 'required' => '', 'class' => 'mw-input' ) +
 477                                 ( $this->opts['target'] ? array() : array( 'autofocus' )
 478                                 )
 479                 );
 480                 $targetSelection = Html::rawElement(
 481                         'td',
 482                         array( 'colspan' => 2 ),
 483                         $labelNewbies . '<br />' . $labelUsername . ' ' . $input . ' '
 484                 );
 485
 486                 $namespaceSelection = Xml::tags(
 487                         'td',
 488                         array( 'class' => 'mw-label' ),
 489                         Xml::label(
 490                                 $this->msg( 'namespace' )->text(),
 491                                 'namespace',
 492                                 ''
 493                         )
 494                 );
 495                 $namespaceSelection .= Html::rawElement(
 496                         'td',
 497                         null,
 498                         Html::namespaceSelector(
 499                                 array( 'selected' => $this->opts['namespace'], 'all' => '' ),
 500                                 array(
 501                                         'name' => 'namespace',
 502                                         'id' => 'namespace',
 503                                         'class' => 'namespaceselector',
 504                                 )
 505                         ) . '&#160;' .
 506                                 Html::rawElement(
 507                                         'span',
 508                                         array( 'style' => 'white-space: nowrap' ),
 509                                         Xml::checkLabel(
 510                                                 $this->msg( 'invert' )->text(),
 511                                                 'nsInvert',
 512                                                 'nsInvert',
 513                                                 $this->opts['nsInvert'],
 514                                                 array(
 515                                                         'title' => $this->msg( 'tooltip-invert' )->text(),
 516                                                         'class' => 'mw-input'
 517                                                 )
 518                                         ) . '&#160;'
 519                                 ) .
 520                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 521                                         Xml::checkLabel(
 522                                                 $this->msg( 'namespace_association' )->text(),
 523                                                 'associated',
 524                                                 'associated',
 525                                                 $this->opts['associated'],
 526                                                 array(
 527                                                         'title' => $this->msg( 'tooltip-namespace_association' )->text(),
 528                                                         'class' => 'mw-input'
 529                                                 )
 530                                         ) . '&#160;'
 531                                 )
 532                 );
 533
 534                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 535                         $deletedOnlyCheck = Html::rawElement(
 536                                 'span',
 537                                 array( 'style' => 'white-space: nowrap' ),
 538                                 Xml::checkLabel(
 539                                         $this->msg( 'history-show-deleted' )->text(),
 540                                         'deletedOnly',
 541                                         'mw-show-deleted-only',
 542                                         $this->opts['deletedOnly'],
 543                                         array( 'class' => 'mw-input' )
 544                                 )
 545                         );
 546                 } else {
 547                         $deletedOnlyCheck = '';
 548                 }
 549
 550                 $checkLabelTopOnly = Html::rawElement(
 551                         'span',
 552                         array( 'style' => 'white-space: nowrap' ),
 553                         Xml::checkLabel(
 554                                 $this->msg( 'sp-contributions-toponly' )->text(),
 555                                 'topOnly',
 556                                 'mw-show-top-only',
 557                                 $this->opts['topOnly'],
 558                                 array( 'class' => 'mw-input' )
 559                         )
 560                 );
 561                 $extraOptions = Html::rawElement(
 562                         'td',
 563                         array( 'colspan' => 2 ),
 564                         $deletedOnlyCheck . $checkLabelTopOnly
 565                 );
 566
 567                 $dateSelectionAndSubmit = Xml::tags( 'td', array( 'colspan' => 2 ),
 568                         Xml::dateMenu(
 569                                 $this->opts['year'] === '' ? gmdate( 'Y' ) : $this->opts['year'],
 570                                 $this->opts['month']
 571                         ) . ' ' .
 572                                 Xml::submitButton(
 573                                         $this->msg( 'sp-contributions-submit' )->text(),
 574                                         array( 'class' => 'mw-submit' )
 575                                 )
 576                 );
 577
 578                 $form .= Xml::fieldset( $this->msg( 'sp-contributions-search' )->text() );
 579                 $form .= Html::rawElement( 'table', array( 'class' => 'mw-contributions-table' ), "\n" .
 580                         Html::rawElement( 'tr', array(), $targetSelection ) . "\n" .
 581                         Html::rawElement( 'tr', array(), $namespaceSelection ) . "\n" .
 582                         Html::rawElement( 'tr', array(), $filterSelection ) . "\n" .
 583                         Html::rawElement( 'tr', array(), $extraOptions ) . "\n" .
 584                         Html::rawElement( 'tr', array(), $dateSelectionAndSubmit ) . "\n"
 585                 );
 586
 587                 $explain = $this->msg( 'sp-contributions-explain' );
 588                 if ( !$explain->isBlank() ) {
 589                         $form .= "<p id='mw-sp-contributions-explain'>{$explain->parse()}</p>";
 590                 }
 591
 592                 $form .= Xml::closeElement( 'fieldset' ) . Xml::closeElement( 'form' );
 593
 594                 return $form;
 595         }
 596
 597         protected function getGroupName() {
 598                 return 'users';
 599         }
 600 }
 601
 602 /**
 603  * Pager for Special:Contributions
 604  * @ingroup SpecialPage Pager
 605  */
 606 class ContribsPager extends ReverseChronologicalPager {
 607         public $mDefaultDirection = true;
 608         var $messages, $target;
 609         var $namespace = '', $mDb;
 610         var $preventClickjacking = false;
 611
 612         /**
 613          * @var array
 614          */
 615         protected $mParentLens;
 616
 617         function __construct( IContextSource $context, array $options ) {
 618                 parent::__construct( $context );
 619
 620                 $msgs = array(
 621                         'diff',
 622                         'hist',
 623                         'newarticle',
 624                         'pipe-separator',
 625                         'rev-delundel',
 626                         'rollbacklink',
 627                         'uctop'
 628                 );
 629
 630                 foreach ( $msgs as $msg ) {
 631                         $this->messages[$msg] = $this->msg( $msg )->escaped();
 632                 }
 633
 634                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 635                 $this->contribs = isset( $options['contribs'] ) ? $options['contribs'] : 'users';
 636                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 637                 $this->tagFilter = isset( $options['tagfilter'] ) ? $options['tagfilter'] : false;
 638                 $this->nsInvert = isset( $options['nsInvert'] ) ? $options['nsInvert'] : false;
 639                 $this->associated = isset( $options['associated'] ) ? $options['associated'] : false;
 640
 641                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 642                 $this->topOnly = !empty( $options['topOnly'] );
 643
 644                 $year = isset( $options['year'] ) ? $options['year'] : false;
 645                 $month = isset( $options['month'] ) ? $options['month'] : false;
 646                 $this->getDateCond( $year, $month );
 647
 648                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 649         }
 650
 651         function getDefaultQuery() {
 652                 $query = parent::getDefaultQuery();
 653                 $query['target'] = $this->target;
 654
 655                 return $query;
 656         }
 657
 658         /**
 659          * This method basically executes the exact same code as the parent class, though with
 660          * a hook added, to allow extentions to add additional queries.
 661          *
 662          * @param string $offset index offset, inclusive
 663          * @param $limit Integer: exact query limit
 664          * @param $descending Boolean: query direction, false for ascending, true for descending
 665          * @return ResultWrapper
 666          */
 667         function reallyDoQuery( $offset, $limit, $descending ) {
 668                 list( $tables, $fields, $conds, $fname, $options, $join_conds ) = $this->buildQueryInfo(
 669                         $offset,
 670                         $limit,
 671                         $descending
 672                 );
 673                 $pager = $this;
 674
 675                 /*
 676                  * This hook will allow extensions to add in additional queries, so they can get their data
 677                  * in My Contributions as well. Extensions should append their results to the $data array.
 678                  *
 679                  * Extension queries have to implement the navbar requirement as well. They should
 680                  * - have a column aliased as $pager->getIndexField()
 681                  * - have LIMIT set
 682                  * - have a WHERE-clause that compares the $pager->getIndexField()-equivalent column to the offset
 683                  * - have the ORDER BY specified based upon the details provided by the navbar
 684                  *
 685                  * See includes/Pager.php buildQueryInfo() method on how to build LIMIT, WHERE & ORDER BY
 686                  *
 687                  * &$data: an array of results of all contribs queries
 688                  * $pager: the ContribsPager object hooked into
 689                  * $offset: see phpdoc above
 690                  * $limit: see phpdoc above
 691                  * $descending: see phpdoc above
 692                  */
 693                 $data = array( $this->mDb->select( $tables, $fields, $conds, $fname, $options, $join_conds ) );
 694                 wfRunHooks( 'ContribsPager::reallyDoQuery', array( &$data, $pager, $offset, $limit, $descending ) );
 695
 696                 $result = array();
 697
 698                 // loop all results and collect them in an array
 699                 foreach ( $data as $query ) {
 700                         foreach ( $query as $i => $row ) {
 701                                 // use index column as key, allowing us to easily sort in PHP
 702                                 $result[$row->{$this->getIndexField()} . "-$i"] = $row;
 703                         }
 704                 }
 705
 706                 // sort results
 707                 if ( $descending ) {
 708                         ksort( $result );
 709                 } else {
 710                         krsort( $result );
 711                 }
 712
 713                 // enforce limit
 714                 $result = array_slice( $result, 0, $limit );
 715
 716                 // get rid of array keys
 717                 $result = array_values( $result );
 718
 719                 return new FakeResultWrapper( $result );
 720         }
 721
 722         function getQueryInfo() {
 723                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 724
 725                 $user = $this->getUser();
 726                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 727
 728                 // Paranoia: avoid brute force searches (bug 17342)
 729                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 730                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0';
 731                 } elseif ( !$user->isAllowed( 'suppressrevision' ) ) {
 732                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::SUPPRESSED_USER ) .
 733                                 ' != ' . Revision::SUPPRESSED_USER;
 734                 }
 735
 736                 # Don't include orphaned revisions
 737                 $join_cond['page'] = Revision::pageJoinCond();
 738                 # Get the current user name for accounts
 739                 $join_cond['user'] = Revision::userJoinCond();
 740
 741                 $queryInfo = array(
 742                         'tables' => $tables,
 743                         'fields' => array_merge(
 744                                 Revision::selectFields(),
 745                                 Revision::selectUserFields(),
 746                                 array( 'page_namespace', 'page_title', 'page_is_new',
 747                                         'page_latest', 'page_is_redirect', 'page_len' )
 748                         ),
 749                         'conds' => $conds,
 750                         'options' => array( 'USE INDEX' => array( 'revision' => $index ) ),
 751                         'join_conds' => $join_cond
 752                 );
 753
 754                 ChangeTags::modifyDisplayQuery(
 755                         $queryInfo['tables'],
 756                         $queryInfo['fields'],
 757                         $queryInfo['conds'],
 758                         $queryInfo['join_conds'],
 759                         $queryInfo['options'],
 760                         $this->tagFilter
 761                 );
 762
 763                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 764
 765                 return $queryInfo;
 766         }
 767
 768         function getUserCond() {
 769                 $condition = array();
 770                 $join_conds = array();
 771                 $tables = array( 'revision', 'page', 'user' );
 772                 if ( $this->contribs == 'newbie' ) {
 773                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 774                         $condition[] = 'rev_user >' . (int)( $max - $max / 100 );
 775                         $index = 'user_timestamp';
 776                         # ignore local groups with the bot right
 777                         # @todo FIXME: Global groups may have 'bot' rights
 778                         $groupsWithBotPermission = User::getGroupsWithPermission( 'bot' );
 779                         if ( count( $groupsWithBotPermission ) ) {
 780                                 $tables[] = 'user_groups';
 781                                 $condition[] = 'ug_group IS NULL';
 782                                 $join_conds['user_groups'] = array(
 783                                         'LEFT JOIN', array(
 784                                                 'ug_user = rev_user',
 785                                                 'ug_group' => $groupsWithBotPermission
 786                                         )
 787                                 );
 788                         }
 789                 } else {
 790                         $uid = User::idFromName( $this->target );
 791                         if ( $uid ) {
 792                                 $condition['rev_user'] = $uid;
 793                                 $index = 'user_timestamp';
 794                         } else {
 795                                 $condition['rev_user_text'] = $this->target;
 796                                 $index = 'usertext_timestamp';
 797                         }
 798                 }
 799
 800                 if ( $this->deletedOnly ) {
 801                         $condition[] = 'rev_deleted != 0';
 802                 }
 803
 804                 if ( $this->topOnly ) {
 805                         $condition[] = 'rev_id = page_latest';
 806                 }
 807
 808                 return array( $tables, $index, $condition, $join_conds );
 809         }
 810
 811         function getNamespaceCond() {
 812                 if ( $this->namespace !== '' ) {
 813                         $selectedNS = $this->mDb->addQuotes( $this->namespace );
 814                         $eq_op = $this->nsInvert ? '!=' : '=';
 815                         $bool_op = $this->nsInvert ? 'AND' : 'OR';
 816
 817                         if ( !$this->associated ) {
 818                                 return array( "page_namespace $eq_op $selectedNS" );
 819                         }
 820
 821                         $associatedNS = $this->mDb->addQuotes(
 822                                 MWNamespace::getAssociated( $this->namespace )
 823                         );
 824
 825                         return array(
 826                                 "page_namespace $eq_op $selectedNS " .
 827                                         $bool_op .
 828                                         " page_namespace $eq_op $associatedNS"
 829                         );
 830                 }
 831
 832                 return array();
 833         }
 834
 835         function getIndexField() {
 836                 return 'rev_timestamp';
 837         }
 838
 839         function doBatchLookups() {
 840                 # Do a link batch query
 841                 $this->mResult->seek( 0 );
 842                 $revIds = array();
 843                 $batch = new LinkBatch();
 844                 # Give some pointers to make (last) links
 845                 foreach ( $this->mResult as $row ) {
 846                         if ( isset( $row->rev_parent_id ) && $row->rev_parent_id ) {
 847                                 $revIds[] = $row->rev_parent_id;
 848                         }
 849                         if ( isset( $row->rev_id ) ) {
 850                                 if ( $this->contribs === 'newbie' ) { // multiple users
 851                                         $batch->add( NS_USER, $row->user_name );
 852                                         $batch->add( NS_USER_TALK, $row->user_name );
 853                                 }
 854                                 $batch->add( $row->page_namespace, $row->page_title );
 855                         }
 856                 }
 857                 $this->mParentLens = Revision::getParentLengths( $this->getDatabase(), $revIds );
 858                 $batch->execute();
 859                 $this->mResult->seek( 0 );
 860         }
 861
 862         /**
 863          * @return string
 864          */
 865         function getStartBody() {
 866                 return "<ul>\n";
 867         }
 868
 869         /**
 870          * @return string
 871          */
 872         function getEndBody() {
 873                 return "</ul>\n";
 874         }
 875
 876         /**
 877          * Generates each row in the contributions list.
 878          *
 879          * Contributions which are marked "top" are currently on top of the history.
 880          * For these contributions, a [rollback] link is shown for users with roll-
 881          * back privileges. The rollback link restores the most recent version that
 882          * was not written by the target user.
 883          *
 884          * @todo This would probably look a lot nicer in a table.
 885          * @param $row
 886          * @return string
 887          */
 888         function formatRow( $row ) {
 889                 wfProfileIn( __METHOD__ );
 890
 891                 $ret = '';
 892                 $classes = array();
 893
 894                 /*
 895                  * There may be more than just revision rows. To make sure that we'll only be processing
 896                  * revisions here, let's _try_ to build a revision out of our row (without displaying
 897                  * notices though) and then trying to grab data from the built object. If we succeed,
 898                  * we're definitely dealing with revision data and we may proceed, if not, we'll leave it
 899                  * to extensions to subscribe to the hook to parse the row.
 900                  */
 901                 wfSuppressWarnings();
 902                 $rev = new Revision( $row );
 903                 $validRevision = (bool)$rev->getId();
 904                 wfRestoreWarnings();
 905
 906                 if ( $validRevision ) {
 907                         $classes = array();
 908
 909                         $page = Title::newFromRow( $row );
 910                         $link = Linker::link(
 911                                 $page,
 912                                 htmlspecialchars( $page->getPrefixedText() ),
 913                                 array( 'class' => 'mw-contributions-title' ),
 914                                 $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 915                         );
 916                         # Mark current revisions
 917                         $topmarktext = '';
 918                         $user = $this->getUser();
 919                         if ( $row->rev_id == $row->page_latest ) {
 920                                 $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 921                                 # Add rollback link
 922                                 if ( !$row->page_is_new && $page->quickUserCan( 'rollback', $user )
 923                                         && $page->quickUserCan( 'edit', $user )
 924                                 ) {
 925                                         $this->preventClickjacking();
 926                                         $topmarktext .= ' ' . Linker::generateRollback( $rev, $this->getContext() );
 927                                 }
 928                         }
 929                         # Is there a visible previous revision?
 930                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) && $rev->getParentId() !== 0 ) {
 931                                 $difftext = Linker::linkKnown(
 932                                         $page,
 933                                         $this->messages['diff'],
 934                                         array(),
 935                                         array(
 936                                                 'diff' => 'prev',
 937                                                 'oldid' => $row->rev_id
 938                                         )
 939                                 );
 940                         } else {
 941                                 $difftext = $this->messages['diff'];
 942                         }
 943                         $histlink = Linker::linkKnown(
 944                                 $page,
 945                                 $this->messages['hist'],
 946                                 array(),
 947                                 array( 'action' => 'history' )
 948                         );
 949
 950                         if ( $row->rev_parent_id === null ) {
 951                                 // For some reason rev_parent_id isn't populated for this row.
 952                                 // Its rumoured this is true on wikipedia for some revisions (bug 34922).
 953                                 // Next best thing is to have the total number of bytes.
 954                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
 955                                 $chardiff .= Linker::formatRevisionSize( $row->rev_len );
 956                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
 957                         } else {
 958                                 $parentLen = isset( $this->mParentLens[$row->rev_parent_id] ) ? $this->mParentLens[$row->rev_parent_id] : 0;
 959                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
 960                                 $chardiff .= ChangesList::showCharacterDifference(
 961                                         $parentLen,
 962                                         $row->rev_len,
 963                                         $this->getContext()
 964                                 );
 965                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
 966                         }
 967
 968                         $lang = $this->getLanguage();
 969                         $comment = $lang->getDirMark() . Linker::revComment( $rev, false, true );
 970                         $date = $lang->userTimeAndDate( $row->rev_timestamp, $user );
 971                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) ) {
 972                                 $d = Linker::linkKnown(
 973                                         $page,
 974                                         htmlspecialchars( $date ),
 975                                         array( 'class' => 'mw-changeslist-date' ),
 976                                         array( 'oldid' => intval( $row->rev_id ) )
 977                                 );
 978                         } else {
 979                                 $d = htmlspecialchars( $date );
 980                         }
 981                         if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 982                                 $d = '<span class="history-deleted">' . $d . '</span>';
 983                         }
 984
 985                         # Show user names for /newbies as there may be different users.
 986                         # Note that we already excluded rows with hidden user names.
 987                         if ( $this->contribs == 'newbie' ) {
 988                                 $userlink = ' . . ' . Linker::userLink( $rev->getUser(), $rev->getUserText() );
 989                                 $userlink .= ' ' . $this->msg( 'parentheses' )->rawParams(
 990                                         Linker::userTalkLink( $rev->getUser(), $rev->getUserText() ) )->escaped() . ' ';
 991                         } else {
 992                                 $userlink = '';
 993                         }
 994
 995                         if ( $rev->getParentId() === 0 ) {
 996                                 $nflag = ChangesList::flag( 'newpage' );
 997                         } else {
 998                                 $nflag = '';
 999                         }
1000
1001                         if ( $rev->isMinor() ) {
1002                                 $mflag = ChangesList::flag( 'minor' );
1003                         } else {
1004                                 $mflag = '';
1005                         }
1006
1007                         $del = Linker::getRevDeleteLink( $user, $rev, $page );
1008                         if ( $del !== '' ) {
1009                                 $del .= ' ';
1010                         }
1011
1012                         $diffHistLinks = $this->msg( 'parentheses' )
1013                                 ->rawParams( $difftext . $this->messages['pipe-separator'] . $histlink )
1014                                 ->escaped();
1015                         $ret = "{$del}{$d} {$diffHistLinks}{$chardiff}{$nflag}{$mflag} {$link}{$userlink} {$comment} {$topmarktext}";
1016
1017                         # Denote if username is redacted for this edit
1018                         if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
1019                                 $ret .= " <strong>" . $this->msg( 'rev-deleted-user-contribs' )->escaped() . "</strong>";
1020                         }
1021
1022                         # Tags, if any.
1023                         list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow(
1024                                 $row->ts_tags,
1025                                 'contributions'
1026                         );
1027                         $classes = array_merge( $classes, $newClasses );
1028                         $ret .= " $tagSummary";
1029                 }
1030
1031                 // Let extensions add data
1032                 wfRunHooks( 'ContributionsLineEnding', array( $this, &$ret, $row, &$classes ) );
1033
1034                 if ( $classes === array() && $ret === '' ) {
1035                         wfDebug( 'Dropping Special:Contribution row that could not be formatted' );
1036                         $ret = "<!-- Could not format Special:Contribution row. -->\n";
1037                 } else {
1038                         $ret = Html::rawElement( 'li', array( 'class' => $classes ), $ret ) . "\n";
1039                 }
1040
1041                 wfProfileOut( __METHOD__ );
1042
1043                 return $ret;
1044         }
1045
1046         /**
1047          * Overwrite Pager function and return a helpful comment
1048          * @return string
1049          */
1050         function getSqlComment() {
1051                 if ( $this->namespace || $this->deletedOnly ) {
1052                         // potentially slow, see CR r58153
1053                         return 'contributions page filtered for namespace or RevisionDeleted edits';
1054                 } else {
1055                         return 'contributions page unfiltered';
1056                 }
1057         }
1058
1059         protected function preventClickjacking() {
1060                 $this->preventClickjacking = true;
1061         }
1062
1063         /**
1064          * @return bool
1065          */
1066         public function getPreventClickjacking() {
1067                 return $this->preventClickjacking;
1068         }
1069 }