includes/specials/SpecialContributions.php

   1 <?php
   2 /**
   3  * Implements Special:Contributions
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * Special:Contributions, show user contributions in a paged list
  26  *
  27  * @ingroup SpecialPage
  28  */
  29
  30 class SpecialContributions extends SpecialPage {
  31
  32         protected $opts;
  33
  34         public function __construct() {
  35                 parent::__construct( 'Contributions' );
  36         }
  37
  38         public function execute( $par ) {
  39                 $this->setHeaders();
  40                 $this->outputHeader();
  41                 $out = $this->getOutput();
  42                 $out->addModuleStyles( 'mediawiki.special' );
  43
  44                 $this->opts = array();
  45                 $request = $this->getRequest();
  46
  47                 if ( $par !== null ) {
  48                         $target = $par;
  49                 } else {
  50                         $target = $request->getVal( 'target' );
  51                 }
  52
  53                 // check for radiobox
  54                 if ( $request->getVal( 'contribs' ) == 'newbie' ) {
  55                         $target = 'newbies';
  56                         $this->opts['contribs'] = 'newbie';
  57                 } else {
  58                         $this->opts['contribs'] = 'user';
  59                 }
  60
  61                 $this->opts['deletedOnly'] = $request->getBool( 'deletedOnly' );
  62
  63                 if ( !strlen( $target ) ) {
  64                         $out->addHTML( $this->getForm() );
  65                         return;
  66                 }
  67
  68                 $user = $this->getUser();
  69
  70                 $this->opts['limit'] = $request->getInt( 'limit', $user->getOption( 'rclimit' ) );
  71                 $this->opts['target'] = $target;
  72                 $this->opts['topOnly'] = $request->getBool( 'topOnly' );
  73
  74                 $nt = Title::makeTitleSafe( NS_USER, $target );
  75                 if ( !$nt ) {
  76                         $out->addHTML( $this->getForm() );
  77                         return;
  78                 }
  79                 $userObj = User::newFromName( $nt->getText(), false );
  80                 if ( !$userObj ) {
  81                         $out->addHTML( $this->getForm() );
  82                         return;
  83                 }
  84                 $id = $userObj->getID();
  85
  86                 if ( $this->opts['contribs'] != 'newbie' ) {
  87                         $target = $nt->getText();
  88                         $out->addSubtitle( $this->contributionsSub( $userObj ) );
  89                         $out->setHTMLTitle( $this->msg( 'pagetitle', $this->msg( 'contributions-title', $target )->plain() ) );
  90                         $this->getSkin()->setRelevantUser( $userObj );
  91                 } else {
  92                         $out->addSubtitle( $this->msg( 'sp-contributions-newbies-sub' ) );
  93                         $out->setHTMLTitle( $this->msg( 'pagetitle', $this->msg( 'sp-contributions-newbies-title' )->plain() ) );
  94                 }
  95
  96                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
  97                         $this->opts['namespace'] = intval( $ns );
  98                 } else {
  99                         $this->opts['namespace'] = '';
 100                 }
 101
 102                 $this->opts['associated'] = $request->getBool( 'associated' );
 103
 104                 $this->opts['nsInvert'] = (bool) $request->getVal( 'nsInvert' );
 105
 106                 $this->opts['tagfilter'] = (string) $request->getVal( 'tagfilter' );
 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['namespace'] !== '' ) {
 143                                 $apiParams['namespace'] = $this->opts['namespace'];
 144                         }
 145                         if ( $this->opts['year'] !== null ) {
 146                                 $apiParams['year'] = $this->opts['year'];
 147                         }
 148                         if ( $this->opts['month'] !== null ) {
 149                                 $apiParams['month'] = $this->opts['month'];
 150                         }
 151
 152                         $url = wfScript( 'api' ) . '?' . wfArrayToCGI( $apiParams );
 153
 154                         $out->redirect( $url, '301' );
 155                         return;
 156                 }
 157
 158                 // Add RSS/atom links
 159                 $this->addFeedLinks( array( 'action' => 'feedcontributions', 'user' => $target ) );
 160
 161                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id ) ) ) {
 162
 163                         $out->addHTML( $this->getForm() );
 164
 165                         $pager = new ContribsPager( $this->getContext(), array(
 166                                 'target' => $target,
 167                                 'contribs' => $this->opts['contribs'],
 168                                 'namespace' => $this->opts['namespace'],
 169                                 'year' => $this->opts['year'],
 170                                 'month' => $this->opts['month'],
 171                                 'deletedOnly' => $this->opts['deletedOnly'],
 172                                 'topOnly' => $this->opts['topOnly'],
 173                                 'nsInvert' => $this->opts['nsInvert'],
 174                                 'associated' => $this->opts['associated'],
 175                         ) );
 176                         if ( !$pager->getNumRows() ) {
 177                                 $out->addWikiMsg( 'nocontribs', $target );
 178                         } else {
 179                                 # Show a message about slave lag, if applicable
 180                                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 181                                 if ( $lag > 0 )
 182                                         $out->showLagWarning( $lag );
 183
 184                                 $out->addHTML(
 185                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 186                                         $pager->getBody() .
 187                                         '<p>' . $pager->getNavigationBar() . '</p>'
 188                                 );
 189                         }
 190                         $out->preventClickjacking( $pager->getPreventClickjacking() );
 191
 192
 193                         # Show the appropriate "footer" message - WHOIS tools, etc.
 194                         if ( $this->opts['contribs'] == 'newbie' ) {
 195                                 $message = 'sp-contributions-footer-newbies';
 196                         } elseif( IP::isIPAddress( $target ) ) {
 197                                 $message = 'sp-contributions-footer-anon';
 198                         } elseif( $userObj->isAnon() ) {
 199                                 // No message for non-existing users
 200                                 $message = '';
 201                         } else {
 202                                 $message = 'sp-contributions-footer';
 203                         }
 204
 205                         if( $message ) {
 206                                 if ( !$this->msg( $message, $target )->isDisabled() ) {
 207                                         $out->wrapWikiMsg(
 208                                                 "<div class='mw-contributions-footer'>\n$1\n</div>",
 209                                                 array( $message, $target ) );
 210                                 }
 211                         }
 212                 }
 213         }
 214
 215         /**
 216          * Generates the subheading with links
 217          * @param $userObj User object for the target
 218          * @return String: appropriately-escaped HTML to be output literally
 219          * @todo FIXME: Almost the same as getSubTitle in SpecialDeletedContributions.php. Could be combined.
 220          */
 221         protected function contributionsSub( $userObj ) {
 222                 if ( $userObj->isAnon() ) {
 223                         $user = htmlspecialchars( $userObj->getName() );
 224                 } else {
 225                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 226                 }
 227                 $nt = $userObj->getUserPage();
 228                 $talk = $userObj->getTalkPage();
 229                 $links = '';
 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                 // @todo Should this be removed at some point?
 262                 $oldMsg = $this->msg( 'contribsub' );
 263                 if ( $oldMsg->exists() ) {
 264                         $linksWithParentheses = $this->msg( 'parentheses' )->rawParams( $links )->escaped();
 265                         return $oldMsg->rawParams( "$user $linksWithParentheses" );
 266                 } else {
 267                         return $this->msg( 'contribsub2' )->rawParams( $user, $links );
 268                 }
 269         }
 270
 271         /**
 272          * Links to different places.
 273          * @param $userpage Title: Target user page
 274          * @param $talkpage Title: Talk page
 275          * @param $target User: Target user object
 276          * @return array
 277          */
 278         public function getUserLinks( Title $userpage, Title $talkpage, User $target ) {
 279
 280                 $id = $target->getId();
 281                 $username = $target->getName();
 282
 283                 $tools[] = Linker::link( $talkpage, $this->msg( 'sp-contributions-talk' )->escaped() );
 284
 285                 if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 286                         if ( $this->getUser()->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 287                                 if ( $target->isBlocked() ) {
 288                                         $tools[] = Linker::linkKnown( # Change block link
 289                                                 SpecialPage::getTitleFor( 'Block', $username ),
 290                                                 $this->msg( 'change-blocklink' )->escaped()
 291                                         );
 292                                         $tools[] = Linker::linkKnown( # Unblock link
 293                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 294                                                 $this->msg( 'unblocklink' )->escaped()
 295                                         );
 296                                 } else { # User is not blocked
 297                                         $tools[] = Linker::linkKnown( # Block link
 298                                                 SpecialPage::getTitleFor( 'Block', $username ),
 299                                                 $this->msg( 'blocklink' )->escaped()
 300                                         );
 301                                 }
 302                         }
 303                         # Block log link
 304                         $tools[] = Linker::linkKnown(
 305                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 306                                 $this->msg( 'sp-contributions-blocklog' )->escaped(),
 307                                 array(),
 308                                 array(
 309                                         'page' => $userpage->getPrefixedText()
 310                                 )
 311                         );
 312                 }
 313                 # Uploads
 314                 $tools[] = Linker::linkKnown(
 315                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 316                         $this->msg( 'sp-contributions-uploads' )->escaped()
 317                 );
 318
 319                 # Other logs link
 320                 $tools[] = Linker::linkKnown(
 321                         SpecialPage::getTitleFor( 'Log', $username ),
 322                         $this->msg( 'sp-contributions-logs' )->escaped()
 323                 );
 324
 325                 # Add link to deleted user contributions for priviledged users
 326                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 327                         $tools[] = Linker::linkKnown(
 328                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 329                                 $this->msg( 'sp-contributions-deleted' )->escaped()
 330                         );
 331                 }
 332
 333                 # Add a link to change user rights for privileged users
 334                 $userrightsPage = new UserrightsPage();
 335                 $userrightsPage->setContext( $this->getContext() );
 336                 if ( $userrightsPage->userCanChangeRights( $target ) ) {
 337                         $tools[] = Linker::linkKnown(
 338                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 339                                 $this->msg( 'sp-contributions-userrights' )->escaped()
 340                         );
 341                 }
 342
 343                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 344                 return $tools;
 345         }
 346
 347         /**
 348          * Generates the namespace selector form with hidden attributes.
 349          * @return String: HTML fragment
 350          */
 351         protected function getForm() {
 352                 global $wgScript;
 353
 354                 $this->opts['title'] = $this->getTitle()->getPrefixedText();
 355                 if ( !isset( $this->opts['target'] ) ) {
 356                         $this->opts['target'] = '';
 357                 } else {
 358                         $this->opts['target'] = str_replace( '_' , ' ' , $this->opts['target'] );
 359                 }
 360
 361                 if ( !isset( $this->opts['namespace'] ) ) {
 362                         $this->opts['namespace'] = '';
 363                 }
 364
 365                 if ( !isset( $this->opts['nsInvert'] ) ) {
 366                         $this->opts['nsInvert'] = '';
 367                 }
 368
 369                 if ( !isset( $this->opts['associated'] ) ) {
 370                         $this->opts['associated'] = false;
 371                 }
 372
 373                 if ( !isset( $this->opts['contribs'] ) ) {
 374                         $this->opts['contribs'] = 'user';
 375                 }
 376
 377                 if ( !isset( $this->opts['year'] ) ) {
 378                         $this->opts['year'] = '';
 379                 }
 380
 381                 if ( !isset( $this->opts['month'] ) ) {
 382                         $this->opts['month'] = '';
 383                 }
 384
 385                 if ( $this->opts['contribs'] == 'newbie' ) {
 386                         $this->opts['target'] = '';
 387                 }
 388
 389                 if ( !isset( $this->opts['tagfilter'] ) ) {
 390                         $this->opts['tagfilter'] = '';
 391                 }
 392
 393                 if ( !isset( $this->opts['topOnly'] ) ) {
 394                         $this->opts['topOnly'] = false;
 395                 }
 396
 397                 $form = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'class' => 'mw-contributions-form' ) );
 398
 399                 # Add hidden params for tracking except for parameters in $skipParameters
 400                 $skipParameters = array( 'namespace', 'nsInvert', 'deletedOnly', 'target', 'contribs', 'year', 'month', 'topOnly', 'associated' );
 401                 foreach ( $this->opts as $name => $value ) {
 402                         if ( in_array( $name, $skipParameters ) ) {
 403                                 continue;
 404                         }
 405                         $form .= "\t" . Html::hidden( $name, $value ) . "\n";
 406                 }
 407
 408                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagfilter'] );
 409
 410                 if ( $tagFilter ) {
 411                         $filterSelection =
 412                                 Xml::tags( 'td', array( 'class' => 'mw-label' ), array_shift( $tagFilter ) ) .
 413                                 Xml::tags( 'td', array( 'class' => 'mw-input' ), implode( '&#160', $tagFilter ) );
 414                 } else {
 415                         $filterSelection = Xml::tags( 'td', array( 'colspan' => 2 ), '' );
 416                 }
 417
 418                 $targetSelection = Xml::tags( 'td', array( 'colspan' => 2 ),
 419                         Xml::radioLabel(
 420                                 $this->msg( 'sp-contributions-newbies' )->text(),
 421                                 'contribs',
 422                                 'newbie' ,
 423                                 'newbie',
 424                                 $this->opts['contribs'] == 'newbie',
 425                                 array( 'class' => 'mw-input' )
 426                         ) . '<br />' .
 427                         Xml::radioLabel(
 428                                 $this->msg( 'sp-contributions-username' )->text(),
 429                                 'contribs',
 430                                 'user',
 431                                 'user',
 432                                 $this->opts['contribs'] == 'user',
 433                                 array( 'class' => 'mw-input' )
 434                         ) . ' ' .
 435                         Html::input(
 436                                 'target',
 437                                 $this->opts['target'],
 438                                 'text',
 439                                 array( 'size' => '20', 'required' => '', 'class' => 'mw-input' ) +
 440                                         ( $this->opts['target'] ? array() : array( 'autofocus' )
 441                                 )
 442                         ) . ' '
 443                 ) ;
 444
 445                 $namespaceSelection =
 446                         Xml::tags( 'td', array( 'class' => 'mw-label' ),
 447                                 Xml::label(
 448                                         $this->msg( 'namespace' )->text(),
 449                                         'namespace',
 450                                         ''
 451                                 )
 452                         ) .
 453                         Xml::tags( 'td', null,
 454                                 Html::namespaceSelector( array(
 455                                         'selected' => $this->opts['namespace'],
 456                                         'all'      => '',
 457                                 ), array(
 458                                         'name'  => 'namespace',
 459                                         'id'    => 'namespace',
 460                                         'class' => 'namespaceselector',
 461                                 ) ) .
 462                                 '&#160;' .
 463                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 464                                         Xml::checkLabel(
 465                                                 $this->msg( 'invert' )->text(),
 466                                                 'nsInvert',
 467                                                 'nsInvert',
 468                                                 $this->opts['nsInvert'],
 469                                                 array( 'title' => $this->msg( 'tooltip-invert' )->text(), 'class' => 'mw-input' )
 470                                         ) . '&#160;'
 471                                 ) .
 472                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 473                                         Xml::checkLabel(
 474                                                 $this->msg( 'namespace_association' )->text(),
 475                                                 'associated',
 476                                                 'associated',
 477                                                 $this->opts['associated'],
 478                                                 array( 'title' => $this->msg( 'tooltip-namespace_association' )->text(), 'class' => 'mw-input' )
 479                                         ) . '&#160;'
 480                                 )
 481                         ) ;
 482
 483                 $extraOptions = Xml::tags( 'td', array( 'colspan' => 2 ),
 484                         Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 485                                 Xml::checkLabel(
 486                                         $this->msg( 'history-show-deleted' )->text(),
 487                                         'deletedOnly',
 488                                         'mw-show-deleted-only',
 489                                         $this->opts['deletedOnly'],
 490                                         array( 'class' => 'mw-input' )
 491                                 )
 492                         ) .
 493                         Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 494                                 Xml::checkLabel(
 495                                         $this->msg( 'sp-contributions-toponly' )->text(),
 496                                         'topOnly',
 497                                         'mw-show-top-only',
 498                                         $this->opts['topOnly'],
 499                                         array( 'class' => 'mw-input' )
 500                                 )
 501                         )
 502                 ) ;
 503
 504                 $dateSelectionAndSubmit = Xml::tags( 'td', array( 'colspan' => 2 ),
 505                         Xml::dateMenu(
 506                                 $this->opts['year'],
 507                                 $this->opts['month']
 508                         ) . ' ' .
 509                         Xml::submitButton(
 510                                 $this->msg( 'sp-contributions-submit' )->text(),
 511                                 array( 'class' => 'mw-submit' )
 512                         )
 513                 ) ;
 514
 515                 $form .=
 516                         Xml::fieldset( $this->msg( 'sp-contributions-search' )->text() ) .
 517                         Xml::openElement( 'table', array( 'class' => 'mw-contributions-table' ) ) .
 518                                 Xml::openElement( 'tr' ) .
 519                                         $targetSelection .
 520                                 Xml::closeElement( 'tr' ) .
 521                                 Xml::openElement( 'tr' ) .
 522                                         $namespaceSelection .
 523                                 Xml::closeElement( 'tr' ) .
 524                                 Xml::openElement( 'tr' ) .
 525                                         $filterSelection .
 526                                 Xml::closeElement( 'tr' ) .
 527                                 Xml::openElement( 'tr' ) .
 528                                         $extraOptions .
 529                                 Xml::closeElement( 'tr' ) .
 530                                 Xml::openElement( 'tr' ) .
 531                                         $dateSelectionAndSubmit .
 532                                 Xml::closeElement( 'tr' ) .
 533                         Xml::closeElement( 'table' );
 534
 535                 $explain = $this->msg( 'sp-contributions-explain' );
 536                 if ( $explain->exists() ) {
 537                         $form .= "<p id='mw-sp-contributions-explain'>{$explain}</p>";
 538                 }
 539                 $form .= Xml::closeElement( 'fieldset' ) .
 540                         Xml::closeElement( 'form' );
 541                 return $form;
 542         }
 543 }
 544
 545 /**
 546  * Pager for Special:Contributions
 547  * @ingroup SpecialPage Pager
 548  */
 549 class ContribsPager extends ReverseChronologicalPager {
 550         public $mDefaultDirection = true;
 551         var $messages, $target;
 552         var $namespace = '', $mDb;
 553         var $preventClickjacking = false;
 554
 555         /**
 556          * @var array
 557          */
 558         protected $mParentLens;
 559
 560         function __construct( IContextSource $context, array $options ) {
 561                 parent::__construct( $context );
 562
 563                 $msgs = array( 'uctop', 'diff', 'newarticle', 'rollbacklink', 'diff', 'hist', 'rev-delundel', 'pipe-separator' );
 564
 565                 foreach ( $msgs as $msg ) {
 566                         $this->messages[$msg] = $this->msg( $msg )->escaped();
 567                 }
 568
 569                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 570                 $this->contribs = isset( $options['contribs'] ) ? $options['contribs'] : 'users';
 571                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 572                 $this->tagFilter = isset( $options['tagfilter'] ) ? $options['tagfilter'] : false;
 573                 $this->nsInvert = isset( $options['nsInvert'] ) ? $options['nsInvert'] : false;
 574                 $this->associated = isset( $options['associated'] ) ? $options['associated'] : false;
 575
 576                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 577                 $this->topOnly = !empty( $options['topOnly'] );
 578
 579                 $year = isset( $options['year'] ) ? $options['year'] : false;
 580                 $month = isset( $options['month'] ) ? $options['month'] : false;
 581                 $this->getDateCond( $year, $month );
 582
 583                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 584         }
 585
 586         function getDefaultQuery() {
 587                 $query = parent::getDefaultQuery();
 588                 $query['target'] = $this->target;
 589                 return $query;
 590         }
 591
 592         function getQueryInfo() {
 593                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 594
 595                 $user = $this->getUser();
 596                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 597
 598                 // Paranoia: avoid brute force searches (bug 17342)
 599                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 600                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0';
 601                 } elseif ( !$user->isAllowed( 'suppressrevision' ) ) {
 602                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::SUPPRESSED_USER ) .
 603                                 ' != ' . Revision::SUPPRESSED_USER;
 604                 }
 605
 606                 # Don't include orphaned revisions
 607                 $join_cond['page'] = Revision::pageJoinCond();
 608                 # Get the current user name for accounts
 609                 $join_cond['user'] = Revision::userJoinCond();
 610
 611                 $queryInfo = array(
 612                         'tables'     => $tables,
 613                         'fields'     => array_merge(
 614                                 Revision::selectFields(),
 615                                 Revision::selectUserFields(),
 616                                 array( 'page_namespace', 'page_title', 'page_is_new',
 617                                         'page_latest', 'page_is_redirect', 'page_len' )
 618                         ),
 619                         'conds'      => $conds,
 620                         'options'    => array( 'USE INDEX' => array( 'revision' => $index ) ),
 621                         'join_conds' => $join_cond
 622                 );
 623
 624                 ChangeTags::modifyDisplayQuery(
 625                         $queryInfo['tables'],
 626                         $queryInfo['fields'],
 627                         $queryInfo['conds'],
 628                         $queryInfo['join_conds'],
 629                         $queryInfo['options'],
 630                         $this->tagFilter
 631                 );
 632
 633                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 634                 return $queryInfo;
 635         }
 636
 637         function getUserCond() {
 638                 $condition = array();
 639                 $join_conds = array();
 640                 $tables = array( 'revision', 'page', 'user' );
 641                 if ( $this->contribs == 'newbie' ) {
 642                         $tables[] = 'user_groups';
 643                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 644                         $condition[] = 'rev_user >' . (int)( $max - $max / 100 );
 645                         $condition[] = 'ug_group IS NULL';
 646                         $index = 'user_timestamp';
 647                         # @todo FIXME: Other groups may have 'bot' rights
 648                         $join_conds['user_groups'] = array( 'LEFT JOIN', "ug_user = rev_user AND ug_group = 'bot'" );
 649                 } else {
 650                         $uid = User::idFromName( $this->target );
 651                         if ( $uid ) {
 652                                 $condition['rev_user'] = $uid;
 653                                 $index = 'user_timestamp';
 654                         } else {
 655                                 $condition['rev_user_text'] = $this->target;
 656                                 $index = 'usertext_timestamp';
 657                         }
 658                 }
 659                 if ( $this->deletedOnly ) {
 660                         $condition[] = "rev_deleted != '0'";
 661                 }
 662                 if ( $this->topOnly ) {
 663                         $condition[] = "rev_id = page_latest";
 664                 }
 665                 return array( $tables, $index, $condition, $join_conds );
 666         }
 667
 668         function getNamespaceCond() {
 669                 if ( $this->namespace !== '' ) {
 670                         $selectedNS = $this->mDb->addQuotes( $this->namespace );
 671                         $eq_op = $this->nsInvert ? '!=' : '=';
 672                         $bool_op = $this->nsInvert ? 'AND' : 'OR';
 673
 674                         if ( !$this->associated ) {
 675                                 return array( "page_namespace $eq_op $selectedNS" );
 676                         } else {
 677                                 $associatedNS = $this->mDb->addQuotes (
 678                                         MWNamespace::getAssociated( $this->namespace )
 679                                 );
 680                                 return array(
 681                                         "page_namespace $eq_op $selectedNS " .
 682                                         $bool_op .
 683                                         " page_namespace $eq_op $associatedNS"
 684                                 );
 685                         }
 686
 687                 } else {
 688                         return array();
 689                 }
 690         }
 691
 692         function getIndexField() {
 693                 return 'rev_timestamp';
 694         }
 695
 696         function doBatchLookups() {
 697                 $this->mResult->rewind();
 698                 $revIds = array();
 699                 foreach ( $this->mResult as $row ) {
 700                         if( $row->rev_parent_id ) {
 701                                 $revIds[] = $row->rev_parent_id;
 702                         }
 703                 }
 704                 $this->mParentLens = $this->getParentLengths( $revIds );
 705                 $this->mResult->rewind(); // reset
 706
 707                 # Do a link batch query
 708                 $this->mResult->seek( 0 );
 709                 $batch = new LinkBatch();
 710                 # Give some pointers to make (last) links
 711                 foreach ( $this->mResult as $row ) {
 712                         if ( $this->contribs === 'newbie' ) { // multiple users
 713                                 $batch->add( NS_USER, $row->user_name );
 714                                 $batch->add( NS_USER_TALK, $row->user_name );
 715                         }
 716                         $batch->add( $row->page_namespace, $row->page_title );
 717                 }
 718                 $batch->execute();
 719                 $this->mResult->seek( 0 );
 720         }
 721
 722         /**
 723          * Do a batched query to get the parent revision lengths
 724          * @param $revIds array
 725          * @return array
 726          */
 727         private function getParentLengths( array $revIds ) {
 728                 $revLens = array();
 729                 if ( !$revIds ) {
 730                         return $revLens; // empty
 731                 }
 732                 wfProfileIn( __METHOD__ );
 733                 $res = $this->getDatabase()->select( 'revision',
 734                         array( 'rev_id', 'rev_len' ),
 735                         array( 'rev_id' => $revIds ),
 736                         __METHOD__ );
 737                 foreach ( $res as $row ) {
 738                         $revLens[$row->rev_id] = $row->rev_len;
 739                 }
 740                 wfProfileOut( __METHOD__ );
 741                 return $revLens;
 742         }
 743
 744         /**
 745          * @return string
 746          */
 747         function getStartBody() {
 748                 return "<ul>\n";
 749         }
 750
 751         /**
 752          * @return string
 753          */
 754         function getEndBody() {
 755                 return "</ul>\n";
 756         }
 757
 758         /**
 759          * Generates each row in the contributions list.
 760          *
 761          * Contributions which are marked "top" are currently on top of the history.
 762          * For these contributions, a [rollback] link is shown for users with roll-
 763          * back privileges. The rollback link restores the most recent version that
 764          * was not written by the target user.
 765          *
 766          * @todo This would probably look a lot nicer in a table.
 767          * @param $row
 768          * @return string
 769          */
 770         function formatRow( $row ) {
 771                 wfProfileIn( __METHOD__ );
 772
 773                 $rev = new Revision( $row );
 774                 $classes = array();
 775
 776                 $page = Title::newFromRow( $row );
 777                 $link = Linker::link(
 778                         $page,
 779                         htmlspecialchars( $page->getPrefixedText() ),
 780                         array(),
 781                         $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 782                 );
 783                 # Mark current revisions
 784                 $topmarktext = '';
 785                 if ( $row->rev_id == $row->page_latest ) {
 786                         $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 787                         # Add rollback link
 788                         if ( !$row->page_is_new && $page->quickUserCan( 'rollback' )
 789                                 && $page->quickUserCan( 'edit' ) )
 790                         {
 791                                 $this->preventClickjacking();
 792                                 $topmarktext .= ' ' . Linker::generateRollback( $rev );
 793                         }
 794                 }
 795                 $user = $this->getUser();
 796                 # Is there a visible previous revision?
 797                 if ( $rev->userCan( Revision::DELETED_TEXT, $user ) && $rev->getParentId() !== 0 ) {
 798                         $difftext = Linker::linkKnown(
 799                                 $page,
 800                                 $this->messages['diff'],
 801                                 array(),
 802                                 array(
 803                                         'diff' => 'prev',
 804                                         'oldid' => $row->rev_id
 805                                 )
 806                         );
 807                 } else {
 808                         $difftext = $this->messages['diff'];
 809                 }
 810                 $histlink = Linker::linkKnown(
 811                         $page,
 812                         $this->messages['hist'],
 813                         array(),
 814                         array( 'action' => 'history' )
 815                 );
 816
 817                 if ( $row->rev_parent_id === null ) {
 818                         // For some reason rev_parent_id isn't populated for this row.
 819                         // Its rumoured this is true on wikipedia for some revisions (bug 34922).
 820                         // Next best thing is to have the total number of bytes.
 821                         $chardiff = ' . . ' . Linker::formatRevisionSize( $row->rev_len ) . ' . . ';
 822                 } else {
 823                         $parentLen = isset( $this->mParentLens[$row->rev_parent_id] ) ? $this->mParentLens[$row->rev_parent_id] : 0;
 824                         $chardiff = ' . . ' . ChangesList::showCharacterDifference(
 825                                         $parentLen, $row->rev_len ) . ' . . ';
 826                 }
 827
 828                 $lang = $this->getLanguage();
 829                 $comment = $lang->getDirMark() . Linker::revComment( $rev, false, true );
 830                 $date = $lang->userTimeAndDate( $row->rev_timestamp, $user );
 831                 if ( $rev->userCan( Revision::DELETED_TEXT, $user ) ) {
 832                         $d = Linker::linkKnown(
 833                                 $page,
 834                                 htmlspecialchars( $date ),
 835                                 array(),
 836                                 array( 'oldid' => intval( $row->rev_id ) )
 837                         );
 838                 } else {
 839                         $d = htmlspecialchars( $date );
 840                 }
 841                 if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 842                         $d = '<span class="history-deleted">' . $d . '</span>';
 843                 }
 844
 845                 # Show user names for /newbies as there may be different users.
 846                 # Note that we already excluded rows with hidden user names.
 847                 if ( $this->contribs == 'newbie' ) {
 848                         $userlink = ' . . ' . Linker::userLink( $rev->getUser(), $rev->getUserText() );
 849                         $userlink .= ' ' . $this->msg( 'parentheses' )->rawParams(
 850                                 Linker::userTalkLink( $rev->getUser(), $rev->getUserText() ) )->escaped() . ' ';
 851                 } else {
 852                         $userlink = '';
 853                 }
 854
 855                 if ( $rev->getParentId() === 0 ) {
 856                         $nflag = ChangesList::flag( 'newpage' );
 857                 } else {
 858                         $nflag = '';
 859                 }
 860
 861                 if ( $rev->isMinor() ) {
 862                         $mflag = ChangesList::flag( 'minor' );
 863                 } else {
 864                         $mflag = '';
 865                 }
 866
 867                 $del = Linker::getRevDeleteLink( $user, $rev, $page );
 868                 if ( $del !== '' ) {
 869                         $del .= ' ';
 870                 }
 871
 872                 $diffHistLinks = $this->msg( 'parentheses' )->rawParams( $difftext . $this->messages['pipe-separator'] . $histlink )->escaped();
 873                 $ret = "{$del}{$d} {$diffHistLinks}{$chardiff}{$nflag}{$mflag} {$link}{$userlink} {$comment} {$topmarktext}";
 874
 875                 # Denote if username is redacted for this edit
 876                 if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
 877                         $ret .= " <strong>" . $this->msg( 'rev-deleted-user-contribs' )->escaped() . "</strong>";
 878                 }
 879
 880                 # Tags, if any.
 881                 list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow( $row->ts_tags, 'contributions' );
 882                 $classes = array_merge( $classes, $newClasses );
 883                 $ret .= " $tagSummary";
 884
 885                 // Let extensions add data
 886                 wfRunHooks( 'ContributionsLineEnding', array( &$this, &$ret, $row ) );
 887
 888                 $classes = implode( ' ', $classes );
 889                 $ret = "<li class=\"$classes\">$ret</li>\n";
 890                 wfProfileOut( __METHOD__ );
 891                 return $ret;
 892         }
 893
 894         /**
 895          * Get the Database object in use
 896          *
 897          * @return DatabaseBase
 898          */
 899         public function getDatabase() {
 900                 return $this->mDb;
 901         }
 902
 903         /**
 904          * Overwrite Pager function and return a helpful comment
 905          * @return string
 906          */
 907         function getSqlComment() {
 908                 if ( $this->namespace || $this->deletedOnly ) {
 909                         return 'contributions page filtered for namespace or RevisionDeleted edits'; // potentially slow, see CR r58153
 910                 } else {
 911                         return 'contributions page unfiltered';
 912                 }
 913         }
 914
 915         protected function preventClickjacking() {
 916                 $this->preventClickjacking = true;
 917         }
 918
 919         /**
 920          * @return bool
 921          */
 922         public function getPreventClickjacking() {
 923                 return $this->preventClickjacking;
 924         }
 925 }