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
  32         protected $opts;
  33
  34         public function __construct() {
  35                 parent::__construct( 'Contributions' );
  36         }
  37
  38         public function execute( $par ) {
  39                 $this->setHeaders();
  40                 $this->outputHeader();
  41                 $out = $this->getOutput();
  42                 $out->addModuleStyles( 'mediawiki.special' );
  43
  44                 $this->opts = array();
  45                 $request = $this->getRequest();
  46
  47                 if ( $par !== null ) {
  48                         $target = $par;
  49                 } else {
  50                         $target = $request->getVal( 'target' );
  51                 }
  52
  53                 // check for radiobox
  54                 if ( $request->getVal( 'contribs' ) == 'newbie' ) {
  55                         $target = 'newbies';
  56                         $this->opts['contribs'] = 'newbie';
  57                 } elseif ( $par === 'newbies' ) { // b/c for WMF
  58                         $target = 'newbies';
  59                         $this->opts['contribs'] = 'newbie';
  60                 } else {
  61                         $this->opts['contribs'] = 'user';
  62                 }
  63
  64                 $this->opts['deletedOnly'] = $request->getBool( 'deletedOnly' );
  65
  66                 if ( !strlen( $target ) ) {
  67                         $out->addHTML( $this->getForm() );
  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                         return;
  81                 }
  82                 $userObj = User::newFromName( $nt->getText(), false );
  83                 if ( !$userObj ) {
  84                         $out->addHTML( $this->getForm() );
  85                         return;
  86                 }
  87                 $id = $userObj->getID();
  88
  89                 if ( $this->opts['contribs'] != 'newbie' ) {
  90                         $target = $nt->getText();
  91                         $out->addSubtitle( $this->contributionsSub( $userObj ) );
  92                         $out->setHTMLTitle( $this->msg( 'pagetitle', $this->msg( 'contributions-title', $target )->plain() ) );
  93                         $this->getSkin()->setRelevantUser( $userObj );
  94                 } else {
  95                         $out->addSubtitle( $this->msg( 'sp-contributions-newbies-sub' ) );
  96                         $out->setHTMLTitle( $this->msg( 'pagetitle', $this->msg( 'sp-contributions-newbies-title' )->plain() ) );
  97                 }
  98
  99                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 100                         $this->opts['namespace'] = intval( $ns );
 101                 } else {
 102                         $this->opts['namespace'] = '';
 103                 }
 104
 105                 $this->opts['associated'] = $request->getBool( 'associated' );
 106
 107                 $this->opts['nsInvert'] = (bool) $request->getVal( 'nsInvert' );
 108
 109                 $this->opts['tagfilter'] = (string) $request->getVal( 'tagfilter' );
 110
 111                 // Allows reverts to have the bot flag in recent changes. It is just here to
 112                 // be passed in the form at the top of the page
 113                 if ( $user->isAllowed( 'markbotedits' ) && $request->getBool( 'bot' ) ) {
 114                         $this->opts['bot'] = '1';
 115                 }
 116
 117                 $skip = $request->getText( 'offset' ) || $request->getText( 'dir' ) == 'prev';
 118                 # Offset overrides year/month selection
 119                 if ( $skip ) {
 120                         $this->opts['year'] = '';
 121                         $this->opts['month'] = '';
 122                 } else {
 123                         $this->opts['year'] = $request->getIntOrNull( 'year' );
 124                         $this->opts['month'] = $request->getIntOrNull( 'month' );
 125                 }
 126
 127                 $feedType = $request->getVal( 'feed' );
 128                 if ( $feedType ) {
 129                         // Maintain some level of backwards compatability
 130                         // If people request feeds using the old parameters, redirect to API
 131                         $apiParams = array(
 132                                 'action' => 'feedcontributions',
 133                                 'feedformat' => $feedType,
 134                                 'user' => $target,
 135                         );
 136                         if ( $this->opts['topOnly'] ) {
 137                                 $apiParams['toponly'] = true;
 138                         }
 139                         if ( $this->opts['deletedOnly'] ) {
 140                                 $apiParams['deletedonly'] = true;
 141                         }
 142                         if ( $this->opts['tagfilter'] !== '' ) {
 143                                 $apiParams['tagfilter'] = $this->opts['tagfilter'];
 144                         }
 145                         if ( $this->opts['namespace'] !== '' ) {
 146                                 $apiParams['namespace'] = $this->opts['namespace'];
 147                         }
 148                         if ( $this->opts['year'] !== null ) {
 149                                 $apiParams['year'] = $this->opts['year'];
 150                         }
 151                         if ( $this->opts['month'] !== null ) {
 152                                 $apiParams['month'] = $this->opts['month'];
 153                         }
 154
 155                         $url = wfScript( 'api' ) . '?' . wfArrayToCGI( $apiParams );
 156
 157                         $out->redirect( $url, '301' );
 158                         return;
 159                 }
 160
 161                 // Add RSS/atom links
 162                 $this->addFeedLinks( array( 'action' => 'feedcontributions', 'user' => $target ) );
 163
 164                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 165
 166                         $out->addHTML( $this->getForm() );
 167
 168                         $pager = new ContribsPager( $this->getContext(), array(
 169                                 'target' => $target,
 170                                 'contribs' => $this->opts['contribs'],
 171                                 'namespace' => $this->opts['namespace'],
 172                                 'year' => $this->opts['year'],
 173                                 'month' => $this->opts['month'],
 174                                 'deletedOnly' => $this->opts['deletedOnly'],
 175                                 'topOnly' => $this->opts['topOnly'],
 176                                 'nsInvert' => $this->opts['nsInvert'],
 177                                 'associated' => $this->opts['associated'],
 178                         ) );
 179                         if ( !$pager->getNumRows() ) {
 180                                 $out->addWikiMsg( 'nocontribs', $target );
 181                         } else {
 182                                 # Show a message about slave lag, if applicable
 183                                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 184                                 if ( $lag > 0 )
 185                                         $out->showLagWarning( $lag );
 186
 187                                 $out->addHTML(
 188                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 189                                         $pager->getBody() .
 190                                         '<p>' . $pager->getNavigationBar() . '</p>'
 191                                 );
 192                         }
 193                         $out->preventClickjacking( $pager->getPreventClickjacking() );
 194
 195
 196                         # Show the appropriate "footer" message - WHOIS tools, etc.
 197                         if ( $this->opts['contribs'] == 'newbie' ) {
 198                                 $message = 'sp-contributions-footer-newbies';
 199                         } elseif( IP::isIPAddress( $target ) ) {
 200                                 $message = 'sp-contributions-footer-anon';
 201                         } elseif( $userObj->isAnon() ) {
 202                                 // No message for non-existing users
 203                                 $message = '';
 204                         } else {
 205                                 $message = 'sp-contributions-footer';
 206                         }
 207
 208                         if( $message ) {
 209                                 if ( !$this->msg( $message, $target )->isDisabled() ) {
 210                                         $out->wrapWikiMsg(
 211                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 212                                                 array( $message, $target ) );
 213                                 }
 214                         }
 215                 }
 216         }
 217
 218         /**
 219          * Generates the subheading with links
 220          * @param $userObj User object for the target
 221          * @return String: appropriately-escaped HTML to be output literally
 222          * @todo FIXME: Almost the same as getSubTitle in SpecialDeletedContributions.php. Could be combined.
 223          */
 224         protected function contributionsSub( $userObj ) {
 225                 if ( $userObj->isAnon() ) {
 226                         $user = htmlspecialchars( $userObj->getName() );
 227                 } else {
 228                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 229                 }
 230                 $nt = $userObj->getUserPage();
 231                 $talk = $userObj->getTalkPage();
 232                 $links = '';
 233                 if ( $talk ) {
 234                         $tools = $this->getUserLinks( $nt, $talk, $userObj );
 235                         $links = $this->getLanguage()->pipeList( $tools );
 236
 237                         // Show a note if the user is blocked and display the last block log entry.
 238                         if ( $userObj->isBlocked() ) {
 239                                 $out = $this->getOutput(); // showLogExtract() wants first parameter by reference
 240                                 LogEventsList::showLogExtract(
 241                                         $out,
 242                                         'block',
 243                                         $nt,
 244                                         '',
 245                                         array(
 246                                                 'lim' => 1,
 247                                                 'showIfEmpty' => false,
 248                                                 'msgKey' => array(
 249                                                         $userObj->isAnon() ?
 250                                                                 'sp-contributions-blocked-notice-anon' :
 251                                                                 'sp-contributions-blocked-notice',
 252                                                         $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 253                                                 ),
 254                                                 'offset' => '' # don't use WebRequest parameter offset
 255                                         )
 256                                 );
 257                         }
 258                 }
 259
 260                 // Old message 'contribsub' had one parameter, but that doesn't work for
 261                 // languages that want to put the "for" bit right after $user but before
 262                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 263                 // otherwise use 'contribsub2'.
 264                 // @todo Should this be removed at some point?
 265                 $oldMsg = $this->msg( 'contribsub' );
 266                 if ( $oldMsg->exists() ) {
 267                         $linksWithParentheses = $this->msg( 'parentheses' )->rawParams( $links )->escaped();
 268                         return $oldMsg->rawParams( "$user $linksWithParentheses" );
 269                 } else {
 270                         return $this->msg( 'contribsub2' )->rawParams( $user, $links );
 271                 }
 272         }
 273
 274         /**
 275          * Links to different places.
 276          * @param $userpage Title: Target user page
 277          * @param $talkpage Title: Talk page
 278          * @param $target User: Target user object
 279          * @return array
 280          */
 281         public function getUserLinks( Title $userpage, Title $talkpage, User $target ) {
 282
 283                 $id = $target->getId();
 284                 $username = $target->getName();
 285
 286                 $tools[] = Linker::link( $talkpage, $this->msg( 'sp-contributions-talk' )->escaped() );
 287
 288                 if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 289                         if ( $this->getUser()->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 290                                 if ( $target->isBlocked() ) {
 291                                         $tools[] = Linker::linkKnown( # Change block link
 292                                                 SpecialPage::getTitleFor( 'Block', $username ),
 293                                                 $this->msg( 'change-blocklink' )->escaped()
 294                                         );
 295                                         $tools[] = Linker::linkKnown( # Unblock link
 296                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 297                                                 $this->msg( 'unblocklink' )->escaped()
 298                                         );
 299                                 } else { # User is not blocked
 300                                         $tools[] = Linker::linkKnown( # Block link
 301                                                 SpecialPage::getTitleFor( 'Block', $username ),
 302                                                 $this->msg( 'blocklink' )->escaped()
 303                                         );
 304                                 }
 305                         }
 306                         # Block log link
 307                         $tools[] = Linker::linkKnown(
 308                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 309                                 $this->msg( 'sp-contributions-blocklog' )->escaped(),
 310                                 array(),
 311                                 array(
 312                                         'page' => $userpage->getPrefixedText()
 313                                 )
 314                         );
 315                 }
 316                 # Uploads
 317                 $tools[] = Linker::linkKnown(
 318                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 319                         $this->msg( 'sp-contributions-uploads' )->escaped()
 320                 );
 321
 322                 # Other logs link
 323                 $tools[] = Linker::linkKnown(
 324                         SpecialPage::getTitleFor( 'Log', $username ),
 325                         $this->msg( 'sp-contributions-logs' )->escaped()
 326                 );
 327
 328                 # Add link to deleted user contributions for priviledged users
 329                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 330                         $tools[] = Linker::linkKnown(
 331                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 332                                 $this->msg( 'sp-contributions-deleted' )->escaped()
 333                         );
 334                 }
 335
 336                 # Add a link to change user rights for privileged users
 337                 $userrightsPage = new UserrightsPage();
 338                 $userrightsPage->setContext( $this->getContext() );
 339                 if ( $userrightsPage->userCanChangeRights( $target ) ) {
 340                         $tools[] = Linker::linkKnown(
 341                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 342                                 $this->msg( 'sp-contributions-userrights' )->escaped()
 343                         );
 344                 }
 345
 346                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 347                 return $tools;
 348         }
 349
 350         /**
 351          * Generates the namespace selector form with hidden attributes.
 352          * @return String: HTML fragment
 353          */
 354         protected function getForm() {
 355                 global $wgScript;
 356
 357                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 358                 if ( !isset( $this->opts['target'] ) ) {
 359                         $this->opts['target'] = '';
 360                 } else {
 361                         $this->opts['target'] = str_replace( '_' , ' ' , $this->opts['target'] );
 362                 }
 363
 364                 if ( !isset( $this->opts['namespace'] ) ) {
 365                         $this->opts['namespace'] = '';
 366                 }
 367
 368                 if ( !isset( $this->opts['nsInvert'] ) ) {
 369                         $this->opts['nsInvert'] = '';
 370                 }
 371
 372                 if ( !isset( $this->opts['associated'] ) ) {
 373                         $this->opts['associated'] = false;
 374                 }
 375
 376                 if ( !isset( $this->opts['contribs'] ) ) {
 377                         $this->opts['contribs'] = 'user';
 378                 }
 379
 380                 if ( !isset( $this->opts['year'] ) ) {
 381                         $this->opts['year'] = '';
 382                 }
 383
 384                 if ( !isset( $this->opts['month'] ) ) {
 385                         $this->opts['month'] = '';
 386                 }
 387
 388                 if ( $this->opts['contribs'] == 'newbie' ) {
 389                         $this->opts['target'] = '';
 390                 }
 391
 392                 if ( !isset( $this->opts['tagfilter'] ) ) {
 393                         $this->opts['tagfilter'] = '';
 394                 }
 395
 396                 if ( !isset( $this->opts['topOnly'] ) ) {
 397                         $this->opts['topOnly'] = false;
 398                 }
 399
 400                 $form = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'class' => 'mw-contributions-form' ) );
 401
 402                 # Add hidden params for tracking except for parameters in $skipParameters
 403                 $skipParameters = array( 'namespace', 'nsInvert', 'deletedOnly', 'target', 'contribs', 'year', 'month', 'topOnly', 'associated' );
 404                 foreach ( $this->opts as $name => $value ) {
 405                         if ( in_array( $name, $skipParameters ) ) {
 406                                 continue;
 407                         }
 408                         $form .= "\t" . Html::hidden( $name, $value ) . "\n";
 409                 }
 410
 411                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagfilter'] );
 412
 413                 if ( $tagFilter ) {
 414                         $filterSelection =
 415                                 Xml::tags( 'td', array( 'class' => 'mw-label' ), array_shift( $tagFilter ) ) .
 416                                 Xml::tags( 'td', array( 'class' => 'mw-input' ), implode( '&#160', $tagFilter ) );
 417                 } else {
 418                         $filterSelection = Xml::tags( 'td', array( 'colspan' => 2 ), '' );
 419                 }
 420
 421                 $targetSelection = Xml::tags( 'td', array( 'colspan' => 2 ),
 422                         Xml::radioLabel(
 423                                 $this->msg( 'sp-contributions-newbies' )->text(),
 424                                 'contribs',
 425                                 'newbie' ,
 426                                 'newbie',
 427                                 $this->opts['contribs'] == 'newbie',
 428                                 array( 'class' => 'mw-input' )
 429                         ) . '<br />' .
 430                         Xml::radioLabel(
 431                                 $this->msg( 'sp-contributions-username' )->text(),
 432                                 'contribs',
 433                                 'user',
 434                                 'user',
 435                                 $this->opts['contribs'] == 'user',
 436                                 array( 'class' => 'mw-input' )
 437                         ) . ' ' .
 438                         Html::input(
 439                                 'target',
 440                                 $this->opts['target'],
 441                                 'text',
 442                                 array( 'size' => '20', 'required' => '', 'class' => 'mw-input' ) +
 443                                         ( $this->opts['target'] ? array() : array( 'autofocus' )
 444                                 )
 445                         ) . ' '
 446                 ) ;
 447
 448                 $namespaceSelection =
 449                         Xml::tags( 'td', array( 'class' => 'mw-label' ),
 450                                 Xml::label(
 451                                         $this->msg( 'namespace' )->text(),
 452                                         'namespace',
 453                                         ''
 454                                 )
 455                         ) .
 456                         Xml::tags( 'td', null,
 457                                 Html::namespaceSelector( array(
 458                                         'selected' => $this->opts['namespace'],
 459                                         'all'      => '',
 460                                 ), array(
 461                                         'name'  => 'namespace',
 462                                         'id'    => 'namespace',
 463                                         'class' => 'namespaceselector',
 464                                 ) ) .
 465                                 '&#160;' .
 466                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 467                                         Xml::checkLabel(
 468                                                 $this->msg( 'invert' )->text(),
 469                                                 'nsInvert',
 470                                                 'nsInvert',
 471                                                 $this->opts['nsInvert'],
 472                                                 array( 'title' => $this->msg( 'tooltip-invert' )->text(), 'class' => 'mw-input' )
 473                                         ) . '&#160;'
 474                                 ) .
 475                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 476                                         Xml::checkLabel(
 477                                                 $this->msg( 'namespace_association' )->text(),
 478                                                 'associated',
 479                                                 'associated',
 480                                                 $this->opts['associated'],
 481                                                 array( 'title' => $this->msg( 'tooltip-namespace_association' )->text(), 'class' => 'mw-input' )
 482                                         ) . '&#160;'
 483                                 )
 484                         ) ;
 485
 486                 $extraOptions = Xml::tags( 'td', array( 'colspan' => 2 ),
 487                         Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 488                                 Xml::checkLabel(
 489                                         $this->msg( 'history-show-deleted' )->text(),
 490                                         'deletedOnly',
 491                                         'mw-show-deleted-only',
 492                                         $this->opts['deletedOnly'],
 493                                         array( 'class' => 'mw-input' )
 494                                 )
 495                         ) .
 496                         Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 497                                 Xml::checkLabel(
 498                                         $this->msg( 'sp-contributions-toponly' )->text(),
 499                                         'topOnly',
 500                                         'mw-show-top-only',
 501                                         $this->opts['topOnly'],
 502                                         array( 'class' => 'mw-input' )
 503                                 )
 504                         )
 505                 ) ;
 506
 507                 $dateSelectionAndSubmit = Xml::tags( 'td', array( 'colspan' => 2 ),
 508                         Xml::dateMenu(
 509                                 $this->opts['year'],
 510                                 $this->opts['month']
 511                         ) . ' ' .
 512                         Xml::submitButton(
 513                                 $this->msg( 'sp-contributions-submit' )->text(),
 514                                 array( 'class' => 'mw-submit' )
 515                         )
 516                 ) ;
 517
 518                 $form .=
 519                         Xml::fieldset( $this->msg( 'sp-contributions-search' )->text() ) .
 520                         Xml::openElement( 'table', array( 'class' => 'mw-contributions-table' ) ) .
 521                                 Xml::openElement( 'tr' ) .
 522                                         $targetSelection .
 523                                 Xml::closeElement( 'tr' ) .
 524                                 Xml::openElement( 'tr' ) .
 525                                         $namespaceSelection .
 526                                 Xml::closeElement( 'tr' ) .
 527                                 Xml::openElement( 'tr' ) .
 528                                         $filterSelection .
 529                                 Xml::closeElement( 'tr' ) .
 530                                 Xml::openElement( 'tr' ) .
 531                                         $extraOptions .
 532                                 Xml::closeElement( 'tr' ) .
 533                                 Xml::openElement( 'tr' ) .
 534                                         $dateSelectionAndSubmit .
 535                                 Xml::closeElement( 'tr' ) .
 536                         Xml::closeElement( 'table' );
 537
 538                 $explain = $this->msg( 'sp-contributions-explain' );
 539                 if ( $explain->exists() ) {
 540                         $form .= "<p id='mw-sp-contributions-explain'>{$explain}</p>";
 541                 }
 542                 $form .= Xml::closeElement( 'fieldset' ) .
 543                         Xml::closeElement( 'form' );
 544                 return $form;
 545         }
 546 }
 547
 548 /**
 549  * Pager for Special:Contributions
 550  * @ingroup SpecialPage Pager
 551  */
 552 class ContribsPager extends ReverseChronologicalPager {
 553         public $mDefaultDirection = true;
 554         var $messages, $target;
 555         var $namespace = '', $mDb;
 556         var $preventClickjacking = false;
 557
 558         /**
 559          * @var array
 560          */
 561         protected $mParentLens;
 562
 563         function __construct( IContextSource $context, array $options ) {
 564                 parent::__construct( $context );
 565
 566                 $msgs = array( 'uctop', 'diff', 'newarticle', 'rollbacklink', 'diff', 'hist', 'rev-delundel', 'pipe-separator' );
 567
 568                 foreach ( $msgs as $msg ) {
 569                         $this->messages[$msg] = $this->msg( $msg )->escaped();
 570                 }
 571
 572                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 573                 $this->contribs = isset( $options['contribs'] ) ? $options['contribs'] : 'users';
 574                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 575                 $this->tagFilter = isset( $options['tagfilter'] ) ? $options['tagfilter'] : false;
 576                 $this->nsInvert = isset( $options['nsInvert'] ) ? $options['nsInvert'] : false;
 577                 $this->associated = isset( $options['associated'] ) ? $options['associated'] : false;
 578
 579                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 580                 $this->topOnly = !empty( $options['topOnly'] );
 581
 582                 $year = isset( $options['year'] ) ? $options['year'] : false;
 583                 $month = isset( $options['month'] ) ? $options['month'] : false;
 584                 $this->getDateCond( $year, $month );
 585
 586                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 587         }
 588
 589         function getDefaultQuery() {
 590                 $query = parent::getDefaultQuery();
 591                 $query['target'] = $this->target;
 592                 return $query;
 593         }
 594
 595         function getQueryInfo() {
 596                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 597
 598                 $user = $this->getUser();
 599                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 600
 601                 // Paranoia: avoid brute force searches (bug 17342)
 602                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 603                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0';
 604                 } elseif ( !$user->isAllowed( 'suppressrevision' ) ) {
 605                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::SUPPRESSED_USER ) .
 606                                 ' != ' . Revision::SUPPRESSED_USER;
 607                 }
 608
 609                 # Don't include orphaned revisions
 610                 $join_cond['page'] = Revision::pageJoinCond();
 611                 # Get the current user name for accounts
 612                 $join_cond['user'] = Revision::userJoinCond();
 613
 614                 $queryInfo = array(
 615                         'tables'     => $tables,
 616                         'fields'     => array_merge(
 617                                 Revision::selectFields(),
 618                                 Revision::selectUserFields(),
 619                                 array( 'page_namespace', 'page_title', 'page_is_new',
 620                                         'page_latest', 'page_is_redirect', 'page_len' )
 621                         ),
 622                         'conds'      => $conds,
 623                         'options'    => array( 'USE INDEX' => array( 'revision' => $index ) ),
 624                         'join_conds' => $join_cond
 625                 );
 626
 627                 ChangeTags::modifyDisplayQuery(
 628                         $queryInfo['tables'],
 629                         $queryInfo['fields'],
 630                         $queryInfo['conds'],
 631                         $queryInfo['join_conds'],
 632                         $queryInfo['options'],
 633                         $this->tagFilter
 634                 );
 635
 636                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 637                 return $queryInfo;
 638         }
 639
 640         function getUserCond() {
 641                 $condition = array();
 642                 $join_conds = array();
 643                 $tables = array( 'revision', 'page', 'user' );
 644                 if ( $this->contribs == 'newbie' ) {
 645                         $tables[] = 'user_groups';
 646                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 647                         $condition[] = 'rev_user >' . (int)( $max - $max / 100 );
 648                         $condition[] = 'ug_group IS NULL';
 649                         $index = 'user_timestamp';
 650                         # @todo FIXME: Other groups may have 'bot' rights
 651                         $join_conds['user_groups'] = array( 'LEFT JOIN', "ug_user = rev_user AND ug_group = 'bot'" );
 652                 } else {
 653                         $uid = User::idFromName( $this->target );
 654                         if ( $uid ) {
 655                                 $condition['rev_user'] = $uid;
 656                                 $index = 'user_timestamp';
 657                         } else {
 658                                 $condition['rev_user_text'] = $this->target;
 659                                 $index = 'usertext_timestamp';
 660                         }
 661                 }
 662                 if ( $this->deletedOnly ) {
 663                         $condition[] = "rev_deleted != '0'";
 664                 }
 665                 if ( $this->topOnly ) {
 666                         $condition[] = "rev_id = page_latest";
 667                 }
 668                 return array( $tables, $index, $condition, $join_conds );
 669         }
 670
 671         function getNamespaceCond() {
 672                 if ( $this->namespace !== '' ) {
 673                         $selectedNS = $this->mDb->addQuotes( $this->namespace );
 674                         $eq_op = $this->nsInvert ? '!=' : '=';
 675                         $bool_op = $this->nsInvert ? 'AND' : 'OR';
 676
 677                         if ( !$this->associated ) {
 678                                 return array( "page_namespace $eq_op $selectedNS" );
 679                         } else {
 680                                 $associatedNS = $this->mDb->addQuotes (
 681                                         MWNamespace::getAssociated( $this->namespace )
 682                                 );
 683                                 return array(
 684                                         "page_namespace $eq_op $selectedNS " .
 685                                         $bool_op .
 686                                         " page_namespace $eq_op $associatedNS"
 687                                 );
 688                         }
 689
 690                 } else {
 691                         return array();
 692                 }
 693         }
 694
 695         function getIndexField() {
 696                 return 'rev_timestamp';
 697         }
 698
 699         function doBatchLookups() {
 700                 $this->mResult->rewind();
 701                 $revIds = array();
 702                 foreach ( $this->mResult as $row ) {
 703                         if( $row->rev_parent_id ) {
 704                                 $revIds[] = $row->rev_parent_id;
 705                         }
 706                 }
 707                 $this->mParentLens = $this->getParentLengths( $revIds );
 708                 $this->mResult->rewind(); // reset
 709
 710                 # Do a link batch query
 711                 $this->mResult->seek( 0 );
 712                 $batch = new LinkBatch();
 713                 # Give some pointers to make (last) links
 714                 foreach ( $this->mResult as $row ) {
 715                         if ( $this->contribs === 'newbie' ) { // multiple users
 716                                 $batch->add( NS_USER, $row->user_name );
 717                                 $batch->add( NS_USER_TALK, $row->user_name );
 718                         }
 719                         $batch->add( $row->page_namespace, $row->page_title );
 720                 }
 721                 $batch->execute();
 722                 $this->mResult->seek( 0 );
 723         }
 724
 725         /**
 726          * Do a batched query to get the parent revision lengths
 727          * @param $revIds array
 728          * @return array
 729          */
 730         private function getParentLengths( array $revIds ) {
 731                 $revLens = array();
 732                 if ( !$revIds ) {
 733                         return $revLens; // empty
 734                 }
 735                 wfProfileIn( __METHOD__ );
 736                 $res = $this->getDatabase()->select( 'revision',
 737                         array( 'rev_id', 'rev_len' ),
 738                         array( 'rev_id' => $revIds ),
 739                         __METHOD__ );
 740                 foreach ( $res as $row ) {
 741                         $revLens[$row->rev_id] = $row->rev_len;
 742                 }
 743                 wfProfileOut( __METHOD__ );
 744                 return $revLens;
 745         }
 746
 747         /**
 748          * @return string
 749          */
 750         function getStartBody() {
 751                 return "<ul>\n";
 752         }
 753
 754         /**
 755          * @return string
 756          */
 757         function getEndBody() {
 758                 return "</ul>\n";
 759         }
 760
 761         /**
 762          * Generates each row in the contributions list.
 763          *
 764          * Contributions which are marked "top" are currently on top of the history.
 765          * For these contributions, a [rollback] link is shown for users with roll-
 766          * back privileges. The rollback link restores the most recent version that
 767          * was not written by the target user.
 768          *
 769          * @todo This would probably look a lot nicer in a table.
 770          * @param $row
 771          * @return string
 772          */
 773         function formatRow( $row ) {
 774                 wfProfileIn( __METHOD__ );
 775
 776                 $rev = new Revision( $row );
 777                 $classes = array();
 778
 779                 $page = Title::newFromRow( $row );
 780                 $link = Linker::link(
 781                         $page,
 782                         htmlspecialchars( $page->getPrefixedText() ),
 783                         array(),
 784                         $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 785                 );
 786                 # Mark current revisions
 787                 $topmarktext = '';
 788                 if ( $row->rev_id == $row->page_latest ) {
 789                         $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 790                         # Add rollback link
 791                         if ( !$row->page_is_new && $page->quickUserCan( 'rollback' )
 792                                 && $page->quickUserCan( 'edit' ) )
 793                         {
 794                                 $this->preventClickjacking();
 795                                 $topmarktext .= ' ' . Linker::generateRollback( $rev );
 796                         }
 797                 }
 798                 $user = $this->getUser();
 799                 # Is there a visible previous revision?
 800                 if ( $rev->userCan( Revision::DELETED_TEXT, $user ) && $rev->getParentId() !== 0 ) {
 801                         $difftext = Linker::linkKnown(
 802                                 $page,
 803                                 $this->messages['diff'],
 804                                 array(),
 805                                 array(
 806                                         'diff' => 'prev',
 807                                         'oldid' => $row->rev_id
 808                                 )
 809                         );
 810                 } else {
 811                         $difftext = $this->messages['diff'];
 812                 }
 813                 $histlink = Linker::linkKnown(
 814                         $page,
 815                         $this->messages['hist'],
 816                         array(),
 817                         array( 'action' => 'history' )
 818                 );
 819
 820                 if ( $row->rev_parent_id === null ) {
 821                         // For some reason rev_parent_id isn't populated for this row.
 822                         // Its rumoured this is true on wikipedia for some revisions (bug 34922).
 823                         // Next best thing is to have the total number of bytes.
 824                         $chardiff = ' . . ' . Linker::formatRevisionSize( $row->rev_len ) . ' . . ';
 825                 } else {
 826                         $parentLen = isset( $this->mParentLens[$row->rev_parent_id] ) ? $this->mParentLens[$row->rev_parent_id] : 0;
 827                         $chardiff = ' . . ' . ChangesList::showCharacterDifference(
 828                                         $parentLen, $row->rev_len ) . ' . . ';
 829                 }
 830
 831                 $lang = $this->getLanguage();
 832                 $comment = $lang->getDirMark() . Linker::revComment( $rev, false, true );
 833                 $date = $lang->userTimeAndDate( $row->rev_timestamp, $user );
 834                 if ( $rev->userCan( Revision::DELETED_TEXT, $user ) ) {
 835                         $d = Linker::linkKnown(
 836                                 $page,
 837                                 htmlspecialchars( $date ),
 838                                 array(),
 839                                 array( 'oldid' => intval( $row->rev_id ) )
 840                         );
 841                 } else {
 842                         $d = htmlspecialchars( $date );
 843                 }
 844                 if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 845                         $d = '<span class="history-deleted">' . $d . '</span>';
 846                 }
 847
 848                 # Show user names for /newbies as there may be different users.
 849                 # Note that we already excluded rows with hidden user names.
 850                 if ( $this->contribs == 'newbie' ) {
 851                         $userlink = ' . . ' . Linker::userLink( $rev->getUser(), $rev->getUserText() );
 852                         $userlink .= ' ' . $this->msg( 'parentheses' )->rawParams(
 853                                 Linker::userTalkLink( $rev->getUser(), $rev->getUserText() ) )->escaped() . ' ';
 854                 } else {
 855                         $userlink = '';
 856                 }
 857
 858                 if ( $rev->getParentId() === 0 ) {
 859                         $nflag = ChangesList::flag( 'newpage' );
 860                 } else {
 861                         $nflag = '';
 862                 }
 863
 864                 if ( $rev->isMinor() ) {
 865                         $mflag = ChangesList::flag( 'minor' );
 866                 } else {
 867                         $mflag = '';
 868                 }
 869
 870                 $del = Linker::getRevDeleteLink( $user, $rev, $page );
 871                 if ( $del !== '' ) {
 872                         $del .= ' ';
 873                 }
 874
 875                 $diffHistLinks = $this->msg( 'parentheses' )->rawParams( $difftext . $this->messages['pipe-separator'] . $histlink )->escaped();
 876                 $ret = "{$del}{$d} {$diffHistLinks}{$chardiff}{$nflag}{$mflag} {$link}{$userlink} {$comment} {$topmarktext}";
 877
 878                 # Denote if username is redacted for this edit
 879                 if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
 880                         $ret .= " <strong>" . $this->msg( 'rev-deleted-user-contribs' )->escaped() . "</strong>";
 881                 }
 882
 883                 # Tags, if any.
 884                 list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow( $row->ts_tags, 'contributions' );
 885                 $classes = array_merge( $classes, $newClasses );
 886                 $ret .= " $tagSummary";
 887
 888                 // Let extensions add data
 889                 wfRunHooks( 'ContributionsLineEnding', array( &$this, &$ret, $row ) );
 890
 891                 $classes = implode( ' ', $classes );
 892                 $ret = "<li class=\"$classes\">$ret</li>\n";
 893                 wfProfileOut( __METHOD__ );
 894                 return $ret;
 895         }
 896
 897         /**
 898          * Get the Database object in use
 899          *
 900          * @return DatabaseBase
 901          */
 902         public function getDatabase() {
 903                 return $this->mDb;
 904         }
 905
 906         /**
 907          * Overwrite Pager function and return a helpful comment
 908          * @return string
 909          */
 910         function getSqlComment() {
 911                 if ( $this->namespace || $this->deletedOnly ) {
 912                         return 'contributions page filtered for namespace or RevisionDeleted edits'; // potentially slow, see CR r58153
 913                 } else {
 914                         return 'contributions page unfiltered';
 915                 }
 916         }
 917
 918         protected function preventClickjacking() {
 919                 $this->preventClickjacking = true;
 920         }
 921
 922         /**
 923          * @return bool
 924          */
 925         public function getPreventClickjacking() {
 926                 return $this->preventClickjacking;
 927         }
 928 }