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