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