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 class SpecialContributions extends IncludableSpecialPage {
  30         protected $opts;
  31
  32         public function __construct() {
  33                 parent::__construct( 'Contributions' );
  34         }
  35
  36         public function execute( $par ) {
  37                 $this->setHeaders();
  38                 $this->outputHeader();
  39                 $out = $this->getOutput();
  40                 $out->addModuleStyles( 'mediawiki.special' );
  41
  42                 $this->opts = array();
  43                 $request = $this->getRequest();
  44
  45                 if ( $par !== null ) {
  46                         $target = $par;
  47                 } else {
  48                         $target = $request->getVal( 'target' );
  49                 }
  50
  51                 // check for radiobox
  52                 if ( $request->getVal( 'contribs' ) == 'newbie' ) {
  53                         $target = 'newbies';
  54                         $this->opts['contribs'] = 'newbie';
  55                 } elseif ( $par === 'newbies' ) { // b/c for WMF
  56                         $target = 'newbies';
  57                         $this->opts['contribs'] = 'newbie';
  58                 } else {
  59                         $this->opts['contribs'] = 'user';
  60                 }
  61
  62                 $this->opts['deletedOnly'] = $request->getBool( 'deletedOnly' );
  63
  64                 if ( !strlen( $target ) ) {
  65                         if ( !$this->including() ) {
  66                                 $out->addHTML( $this->getForm() );
  67                         }
  68
  69                         return;
  70                 }
  71
  72                 $user = $this->getUser();
  73
  74                 $this->opts['limit'] = $request->getInt( 'limit', $user->getOption( 'rclimit' ) );
  75                 $this->opts['target'] = $target;
  76                 $this->opts['topOnly'] = $request->getBool( 'topOnly' );
  77                 $this->opts['newOnly'] = $request->getBool( 'newOnly' );
  78
  79                 $nt = Title::makeTitleSafe( NS_USER, $target );
  80                 if ( !$nt ) {
  81                         $out->addHTML( $this->getForm() );
  82
  83                         return;
  84                 }
  85                 $userObj = User::newFromName( $nt->getText(), false );
  86                 if ( !$userObj ) {
  87                         $out->addHTML( $this->getForm() );
  88
  89                         return;
  90                 }
  91                 $id = $userObj->getID();
  92
  93                 if ( $this->opts['contribs'] != 'newbie' ) {
  94                         $target = $nt->getText();
  95                         $out->addSubtitle( $this->contributionsSub( $userObj ) );
  96                         $out->setHTMLTitle( $this->msg(
  97                                 'pagetitle',
  98                                 $this->msg( 'contributions-title', $target )->plain()
  99                         )->inContentLanguage() );
 100                         $this->getSkin()->setRelevantUser( $userObj );
 101                 } else {
 102                         $out->addSubtitle( $this->msg( 'sp-contributions-newbies-sub' ) );
 103                         $out->setHTMLTitle( $this->msg(
 104                                 'pagetitle',
 105                                 $this->msg( 'sp-contributions-newbies-title' )->plain()
 106                         )->inContentLanguage() );
 107                 }
 108
 109                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 110                         $this->opts['namespace'] = intval( $ns );
 111                 } else {
 112                         $this->opts['namespace'] = '';
 113                 }
 114
 115                 $this->opts['associated'] = $request->getBool( 'associated' );
 116                 $this->opts['nsInvert'] = (bool)$request->getVal( 'nsInvert' );
 117                 $this->opts['tagfilter'] = (string)$request->getVal( 'tagfilter' );
 118
 119                 // Allows reverts to have the bot flag in recent changes. It is just here to
 120                 // be passed in the form at the top of the page
 121                 if ( $user->isAllowed( 'markbotedits' ) && $request->getBool( 'bot' ) ) {
 122                         $this->opts['bot'] = '1';
 123                 }
 124
 125                 $skip = $request->getText( 'offset' ) || $request->getText( 'dir' ) == 'prev';
 126                 # Offset overrides year/month selection
 127                 if ( $skip ) {
 128                         $this->opts['year'] = '';
 129                         $this->opts['month'] = '';
 130                 } else {
 131                         $this->opts['year'] = $request->getIntOrNull( 'year' );
 132                         $this->opts['month'] = $request->getIntOrNull( 'month' );
 133                 }
 134
 135                 $feedType = $request->getVal( 'feed' );
 136
 137                 $feedParams = array(
 138                         'action' => 'feedcontributions',
 139                         'user' => $target,
 140                 );
 141                 if ( $this->opts['topOnly'] ) {
 142                         $feedParams['toponly'] = true;
 143                 }
 144                 if ( $this->opts['newOnly'] ) {
 145                         $feedParams['newonly'] = true;
 146                 }
 147                 if ( $this->opts['deletedOnly'] ) {
 148                         $feedParams['deletedonly'] = true;
 149                 }
 150                 if ( $this->opts['tagfilter'] !== '' ) {
 151                         $feedParams['tagfilter'] = $this->opts['tagfilter'];
 152                 }
 153                 if ( $this->opts['namespace'] !== '' ) {
 154                         $feedParams['namespace'] = $this->opts['namespace'];
 155                 }
 156                 // Don't use year and month for the feed URL, but pass them on if
 157                 // we redirect to API (if $feedType is specified)
 158                 if ( $feedType && $this->opts['year'] !== null ) {
 159                         $feedParams['year'] = $this->opts['year'];
 160                 }
 161                 if ( $feedType && $this->opts['month'] !== null ) {
 162                         $feedParams['month'] = $this->opts['month'];
 163                 }
 164
 165                 if ( $feedType ) {
 166                         // Maintain some level of backwards compatability
 167                         // If people request feeds using the old parameters, redirect to API
 168                         $feedParams['feedformat'] = $feedType;
 169                         $url = wfAppendQuery( wfScript( 'api' ), $feedParams );
 170
 171                         $out->redirect( $url, '301' );
 172
 173                         return;
 174                 }
 175
 176                 // Add RSS/atom links
 177                 $this->addFeedLinks( $feedParams );
 178
 179                 if ( wfRunHooks( 'SpecialContributionsBeforeMainOutput', array( $id, $userObj, $this ) ) ) {
 180                         if ( !$this->including() ) {
 181                                 $out->addHTML( $this->getForm() );
 182                         }
 183                         $pager = new ContribsPager( $this->getContext(), array(
 184                                 'target' => $target,
 185                                 'contribs' => $this->opts['contribs'],
 186                                 'namespace' => $this->opts['namespace'],
 187                                 'tagfilter' => $this->opts['tagfilter'],
 188                                 'year' => $this->opts['year'],
 189                                 'month' => $this->opts['month'],
 190                                 'deletedOnly' => $this->opts['deletedOnly'],
 191                                 'topOnly' => $this->opts['topOnly'],
 192                                 'newOnly' => $this->opts['newOnly'],
 193                                 'nsInvert' => $this->opts['nsInvert'],
 194                                 'associated' => $this->opts['associated'],
 195                         ) );
 196
 197                         if ( !$pager->getNumRows() ) {
 198                                 $out->addWikiMsg( 'nocontribs', $target );
 199                         } else {
 200                                 # Show a message about slave lag, if applicable
 201                                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 202                                 if ( $lag > 0 ) {
 203                                         $out->showLagWarning( $lag );
 204                                 }
 205
 206                                 $out->addHTML(
 207                                         '<p>' . $pager->getNavigationBar() . '</p>' .
 208                                                 $pager->getBody() .
 209                                                 '<p>' . $pager->getNavigationBar() . '</p>'
 210                                 );
 211                         }
 212                         $out->preventClickjacking( $pager->getPreventClickjacking() );
 213
 214                         # Show the appropriate "footer" message - WHOIS tools, etc.
 215                         if ( $this->opts['contribs'] == 'newbie' ) {
 216                                 $message = 'sp-contributions-footer-newbies';
 217                         } elseif ( IP::isIPAddress( $target ) ) {
 218                                 $message = 'sp-contributions-footer-anon';
 219                         } elseif ( $userObj->isAnon() ) {
 220                                 // No message for non-existing users
 221                                 $message = '';
 222                         } else {
 223                                 $message = 'sp-contributions-footer';
 224                         }
 225
 226                         if ( $message ) {
 227                                 if ( !$this->including() ) {
 228                                         if ( !$this->msg( $message, $target )->isDisabled() ) {
 229                                                 $out->wrapWikiMsg(
 230                                                         "<div class='mw-contributions-footer'>\n$1\n</div>",
 231                                                         array( $message, $target ) );
 232                                         }
 233                                 }
 234                         }
 235                 }
 236         }
 237
 238         /**
 239          * Generates the subheading with links
 240          * @param $userObj User object for the target
 241          * @return String: appropriately-escaped HTML to be output literally
 242          * @todo FIXME: Almost the same as getSubTitle in SpecialDeletedContributions.php.
 243          * Could be combined.
 244          */
 245         protected function contributionsSub( $userObj ) {
 246                 if ( $userObj->isAnon() ) {
 247                         // Show a warning message that the user being searched for doesn't exists
 248                         if ( !User::isIP( $userObj->getName() ) ) {
 249                                 $this->getOutput()->wrapWikiMsg(
 250                                         "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1\n</div>",
 251                                         array(
 252                                                 'contributions-userdoesnotexist',
 253                                                 wfEscapeWikiText( $userObj->getName() ),
 254                                         )
 255                                 );
 256                         }
 257                         $user = htmlspecialchars( $userObj->getName() );
 258                 } else {
 259                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 260                 }
 261                 $nt = $userObj->getUserPage();
 262                 $talk = $userObj->getTalkPage();
 263                 $links = '';
 264                 if ( $talk ) {
 265                         $tools = $this->getUserLinks( $nt, $talk, $userObj );
 266                         $links = $this->getLanguage()->pipeList( $tools );
 267
 268                         // Show a note if the user is blocked and display the last block log entry.
 269                         // Do not expose the autoblocks, since that may lead to a leak of accounts' IPs,
 270                         // and also this will display a totally irrelevant log entry as a current block.
 271                         if ( $userObj->isBlocked() && $userObj->getBlock()->getType() != Block::TYPE_AUTO ) {
 272                                 $out = $this->getOutput(); // showLogExtract() wants first parameter by reference
 273                                 LogEventsList::showLogExtract(
 274                                         $out,
 275                                         'block',
 276                                         $nt,
 277                                         '',
 278                                         array(
 279                                                 'lim' => 1,
 280                                                 'showIfEmpty' => false,
 281                                                 'msgKey' => array(
 282                                                         $userObj->isAnon() ?
 283                                                                 'sp-contributions-blocked-notice-anon' :
 284                                                                 'sp-contributions-blocked-notice',
 285                                                         $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 286                                                 ),
 287                                                 'offset' => '' # don't use WebRequest parameter offset
 288                                         )
 289                                 );
 290                         }
 291                 }
 292
 293                 return $this->msg( 'contribsub2' )->rawParams( $user, $links )->params( $userObj->getName() );
 294         }
 295
 296         /**
 297          * Links to different places.
 298          * @param $userpage Title: Target user page
 299          * @param $talkpage Title: Talk page
 300          * @param $target User: Target user object
 301          * @return array
 302          */
 303         public function getUserLinks( Title $userpage, Title $talkpage, User $target ) {
 304
 305                 $id = $target->getId();
 306                 $username = $target->getName();
 307
 308                 $tools[] = Linker::link( $talkpage, $this->msg( 'sp-contributions-talk' )->escaped() );
 309
 310                 if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $username ) ) ) {
 311                         if ( $this->getUser()->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 312                                 if ( $target->isBlocked() && $target->getBlock()->getType() != Block::TYPE_AUTO ) {
 313                                         $tools[] = Linker::linkKnown( # Change block link
 314                                                 SpecialPage::getTitleFor( 'Block', $username ),
 315                                                 $this->msg( 'change-blocklink' )->escaped()
 316                                         );
 317                                         $tools[] = Linker::linkKnown( # Unblock link
 318                                                 SpecialPage::getTitleFor( 'Unblock', $username ),
 319                                                 $this->msg( 'unblocklink' )->escaped()
 320                                         );
 321                                 } else { # User is not blocked
 322                                         $tools[] = Linker::linkKnown( # Block link
 323                                                 SpecialPage::getTitleFor( 'Block', $username ),
 324                                                 $this->msg( 'blocklink' )->escaped()
 325                                         );
 326                                 }
 327                         }
 328
 329                         # Block log link
 330                         $tools[] = Linker::linkKnown(
 331                                 SpecialPage::getTitleFor( 'Log', 'block' ),
 332                                 $this->msg( 'sp-contributions-blocklog' )->escaped(),
 333                                 array(),
 334                                 array( 'page' => $userpage->getPrefixedText() )
 335                         );
 336
 337                         # Suppression log link (bug 59120)
 338                         if ( $this->getUser()->isAllowed( 'suppressionlog' ) ) {
 339                                 $tools[] = Linker::linkKnown(
 340                                         SpecialPage::getTitleFor( 'Log', 'suppress' ),
 341                                         $this->msg( 'sp-contributions-suppresslog' )->escaped(),
 342                                         array(),
 343                                         array( 'offender' => $username )
 344                                 );
 345                         }
 346                 }
 347                 # Uploads
 348                 $tools[] = Linker::linkKnown(
 349                         SpecialPage::getTitleFor( 'Listfiles', $username ),
 350                         $this->msg( 'sp-contributions-uploads' )->escaped()
 351                 );
 352
 353                 # Other logs link
 354                 $tools[] = Linker::linkKnown(
 355                         SpecialPage::getTitleFor( 'Log', $username ),
 356                         $this->msg( 'sp-contributions-logs' )->escaped()
 357                 );
 358
 359                 # Add link to deleted user contributions for priviledged users
 360                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 361                         $tools[] = Linker::linkKnown(
 362                                 SpecialPage::getTitleFor( 'DeletedContributions', $username ),
 363                                 $this->msg( 'sp-contributions-deleted' )->escaped()
 364                         );
 365                 }
 366
 367                 # Add a link to change user rights for privileged users
 368                 $userrightsPage = new UserrightsPage();
 369                 $userrightsPage->setContext( $this->getContext() );
 370                 if ( $userrightsPage->userCanChangeRights( $target ) ) {
 371                         $tools[] = Linker::linkKnown(
 372                                 SpecialPage::getTitleFor( 'Userrights', $username ),
 373                                 $this->msg( 'sp-contributions-userrights' )->escaped()
 374                         );
 375                 }
 376
 377                 wfRunHooks( 'ContributionsToolLinks', array( $id, $userpage, &$tools ) );
 378
 379                 return $tools;
 380         }
 381
 382         /**
 383          * Generates the namespace selector form with hidden attributes.
 384          * @return String: HTML fragment
 385          */
 386         protected function getForm() {
 387                 global $wgScript;
 388
 389                 $this->opts['title'] = $this->getPageTitle()->getPrefixedText();
 390                 if ( !isset( $this->opts['target'] ) ) {
 391                         $this->opts['target'] = '';
 392                 } else {
 393                         $this->opts['target'] = str_replace( '_', ' ', $this->opts['target'] );
 394                 }
 395
 396                 if ( !isset( $this->opts['namespace'] ) ) {
 397                         $this->opts['namespace'] = '';
 398                 }
 399
 400                 if ( !isset( $this->opts['nsInvert'] ) ) {
 401                         $this->opts['nsInvert'] = '';
 402                 }
 403
 404                 if ( !isset( $this->opts['associated'] ) ) {
 405                         $this->opts['associated'] = false;
 406                 }
 407
 408                 if ( !isset( $this->opts['contribs'] ) ) {
 409                         $this->opts['contribs'] = 'user';
 410                 }
 411
 412                 if ( !isset( $this->opts['year'] ) ) {
 413                         $this->opts['year'] = '';
 414                 }
 415
 416                 if ( !isset( $this->opts['month'] ) ) {
 417                         $this->opts['month'] = '';
 418                 }
 419
 420                 if ( $this->opts['contribs'] == 'newbie' ) {
 421                         $this->opts['target'] = '';
 422                 }
 423
 424                 if ( !isset( $this->opts['tagfilter'] ) ) {
 425                         $this->opts['tagfilter'] = '';
 426                 }
 427
 428                 if ( !isset( $this->opts['topOnly'] ) ) {
 429                         $this->opts['topOnly'] = false;
 430                 }
 431
 432                 if ( !isset( $this->opts['newOnly'] ) ) {
 433                         $this->opts['newOnly'] = false;
 434                 }
 435
 436                 $form = Html::openElement(
 437                         'form',
 438                         array(
 439                                 'method' => 'get',
 440                                 'action' => $wgScript,
 441                                 'class' => 'mw-contributions-form'
 442                         )
 443                 );
 444
 445                 # Add hidden params for tracking except for parameters in $skipParameters
 446                 $skipParameters = array(
 447                         'namespace',
 448                         'nsInvert',
 449                         'deletedOnly',
 450                         'target',
 451                         'contribs',
 452                         'year',
 453                         'month',
 454                         'topOnly',
 455                         'newOnly',
 456                         'associated'
 457                 );
 458
 459                 foreach ( $this->opts as $name => $value ) {
 460                         if ( in_array( $name, $skipParameters ) ) {
 461                                 continue;
 462                         }
 463                         $form .= "\t" . Html::hidden( $name, $value ) . "\n";
 464                 }
 465
 466                 $tagFilter = ChangeTags::buildTagFilterSelector( $this->opts['tagfilter'] );
 467
 468                 if ( $tagFilter ) {
 469                         $filterSelection = Html::rawElement(
 470                                 'td',
 471                                 array( 'class' => 'mw-label' ),
 472                                 array_shift( $tagFilter )
 473                         );
 474                         $filterSelection .= Html::rawElement(
 475                                 'td',
 476                                 array( 'class' => 'mw-input' ),
 477                                 implode( '&#160', $tagFilter )
 478                         );
 479                 } else {
 480                         $filterSelection = Html::rawElement( 'td', array( 'colspan' => 2 ), '' );
 481                 }
 482
 483                 $labelNewbies = Xml::radioLabel(
 484                         $this->msg( 'sp-contributions-newbies' )->text(),
 485                         'contribs',
 486                         'newbie',
 487                         'newbie',
 488                         $this->opts['contribs'] == 'newbie',
 489                         array( 'class' => 'mw-input' )
 490                 );
 491                 $labelUsername = Xml::radioLabel(
 492                         $this->msg( 'sp-contributions-username' )->text(),
 493                         'contribs',
 494                         'user',
 495                         'user',
 496                         $this->opts['contribs'] == 'user',
 497                         array( 'class' => 'mw-input' )
 498                 );
 499                 $input = Html::input(
 500                         'target',
 501                         $this->opts['target'],
 502                         'text',
 503                         array( 'size' => '40', 'required' => '', 'class' => 'mw-input' ) +
 504                                 ( $this->opts['target'] ? array() : array( 'autofocus' )
 505                                 )
 506                 );
 507                 $targetSelection = Html::rawElement(
 508                         'td',
 509                         array( 'colspan' => 2 ),
 510                         $labelNewbies . '<br />' . $labelUsername . ' ' . $input . ' '
 511                 );
 512
 513                 $namespaceSelection = Xml::tags(
 514                         'td',
 515                         array( 'class' => 'mw-label' ),
 516                         Xml::label(
 517                                 $this->msg( 'namespace' )->text(),
 518                                 'namespace',
 519                                 ''
 520                         )
 521                 );
 522                 $namespaceSelection .= Html::rawElement(
 523                         'td',
 524                         null,
 525                         Html::namespaceSelector(
 526                                 array( 'selected' => $this->opts['namespace'], 'all' => '' ),
 527                                 array(
 528                                         'name' => 'namespace',
 529                                         'id' => 'namespace',
 530                                         'class' => 'namespaceselector',
 531                                 )
 532                         ) . '&#160;' .
 533                                 Html::rawElement(
 534                                         'span',
 535                                         array( 'style' => 'white-space: nowrap' ),
 536                                         Xml::checkLabel(
 537                                                 $this->msg( 'invert' )->text(),
 538                                                 'nsInvert',
 539                                                 'nsInvert',
 540                                                 $this->opts['nsInvert'],
 541                                                 array(
 542                                                         'title' => $this->msg( 'tooltip-invert' )->text(),
 543                                                         'class' => 'mw-input'
 544                                                 )
 545                                         ) . '&#160;'
 546                                 ) .
 547                                 Html::rawElement( 'span', array( 'style' => 'white-space: nowrap' ),
 548                                         Xml::checkLabel(
 549                                                 $this->msg( 'namespace_association' )->text(),
 550                                                 'associated',
 551                                                 'associated',
 552                                                 $this->opts['associated'],
 553                                                 array(
 554                                                         'title' => $this->msg( 'tooltip-namespace_association' )->text(),
 555                                                         'class' => 'mw-input'
 556                                                 )
 557                                         ) . '&#160;'
 558                                 )
 559                 );
 560
 561                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
 562                         $deletedOnlyCheck = Html::rawElement(
 563                                 'span',
 564                                 array( 'style' => 'white-space: nowrap' ),
 565                                 Xml::checkLabel(
 566                                         $this->msg( 'history-show-deleted' )->text(),
 567                                         'deletedOnly',
 568                                         'mw-show-deleted-only',
 569                                         $this->opts['deletedOnly'],
 570                                         array( 'class' => 'mw-input' )
 571                                 )
 572                         );
 573                 } else {
 574                         $deletedOnlyCheck = '';
 575                 }
 576
 577                 $checkLabelTopOnly = Html::rawElement(
 578                         'span',
 579                         array( 'style' => 'white-space: nowrap' ),
 580                         Xml::checkLabel(
 581                                 $this->msg( 'sp-contributions-toponly' )->text(),
 582                                 'topOnly',
 583                                 'mw-show-top-only',
 584                                 $this->opts['topOnly'],
 585                                 array( 'class' => 'mw-input' )
 586                         )
 587                 );
 588                 $checkLabelNewOnly = Html::rawElement(
 589                         'span',
 590                         array( 'style' => 'white-space: nowrap' ),
 591                         Xml::checkLabel(
 592                                 $this->msg( 'sp-contributions-newonly' )->text(),
 593                                 'newOnly',
 594                                 'mw-show-new-only',
 595                                 $this->opts['newOnly'],
 596                                 array( 'class' => 'mw-input' )
 597                         )
 598                 );
 599                 $extraOptions = Html::rawElement(
 600                         'td',
 601                         array( 'colspan' => 2 ),
 602                         $deletedOnlyCheck . $checkLabelTopOnly . $checkLabelNewOnly
 603                 );
 604
 605                 $dateSelectionAndSubmit = Xml::tags( 'td', array( 'colspan' => 2 ),
 606                         Xml::dateMenu(
 607                                 $this->opts['year'] === '' ? MWTimestamp::getInstance()->format( 'Y' ) : $this->opts['year'],
 608                                 $this->opts['month']
 609                         ) . ' ' .
 610                                 Xml::submitButton(
 611                                         $this->msg( 'sp-contributions-submit' )->text(),
 612                                         array( 'class' => 'mw-submit' )
 613                                 )
 614                 );
 615
 616                 $form .= Xml::fieldset( $this->msg( 'sp-contributions-search' )->text() );
 617                 $form .= Html::rawElement( 'table', array( 'class' => 'mw-contributions-table' ), "\n" .
 618                         Html::rawElement( 'tr', array(), $targetSelection ) . "\n" .
 619                         Html::rawElement( 'tr', array(), $namespaceSelection ) . "\n" .
 620                         Html::rawElement( 'tr', array(), $filterSelection ) . "\n" .
 621                         Html::rawElement( 'tr', array(), $extraOptions ) . "\n" .
 622                         Html::rawElement( 'tr', array(), $dateSelectionAndSubmit ) . "\n"
 623                 );
 624
 625                 $explain = $this->msg( 'sp-contributions-explain' );
 626                 if ( !$explain->isBlank() ) {
 627                         $form .= "<p id='mw-sp-contributions-explain'>{$explain->parse()}</p>";
 628                 }
 629
 630                 $form .= Xml::closeElement( 'fieldset' ) . Xml::closeElement( 'form' );
 631
 632                 return $form;
 633         }
 634
 635         protected function getGroupName() {
 636                 return 'users';
 637         }
 638 }
 639
 640 /**
 641  * Pager for Special:Contributions
 642  * @ingroup SpecialPage Pager
 643  */
 644 class ContribsPager extends ReverseChronologicalPager {
 645         public $mDefaultDirection = true;
 646         public $messages;
 647         public $target;
 648         public $namespace = '';
 649         public $mDb;
 650         public $preventClickjacking = false;
 651
 652         /** @var DatabaseBase */
 653         public $mDbSecondary;
 654
 655         /**
 656          * @var array
 657          */
 658         protected $mParentLens;
 659
 660         function __construct( IContextSource $context, array $options ) {
 661                 parent::__construct( $context );
 662
 663                 $msgs = array(
 664                         'diff',
 665                         'hist',
 666                         'newarticle',
 667                         'pipe-separator',
 668                         'rev-delundel',
 669                         'rollbacklink',
 670                         'uctop'
 671                 );
 672
 673                 foreach ( $msgs as $msg ) {
 674                         $this->messages[$msg] = $this->msg( $msg )->escaped();
 675                 }
 676
 677                 $this->target = isset( $options['target'] ) ? $options['target'] : '';
 678                 $this->contribs = isset( $options['contribs'] ) ? $options['contribs'] : 'users';
 679                 $this->namespace = isset( $options['namespace'] ) ? $options['namespace'] : '';
 680                 $this->tagFilter = isset( $options['tagfilter'] ) ? $options['tagfilter'] : false;
 681                 $this->nsInvert = isset( $options['nsInvert'] ) ? $options['nsInvert'] : false;
 682                 $this->associated = isset( $options['associated'] ) ? $options['associated'] : false;
 683
 684                 $this->deletedOnly = !empty( $options['deletedOnly'] );
 685                 $this->topOnly = !empty( $options['topOnly'] );
 686                 $this->newOnly = !empty( $options['newOnly'] );
 687
 688                 $year = isset( $options['year'] ) ? $options['year'] : false;
 689                 $month = isset( $options['month'] ) ? $options['month'] : false;
 690                 $this->getDateCond( $year, $month );
 691
 692                 // Most of this code will use the 'contributions' group DB, which can map to slaves
 693                 // with extra user based indexes or partioning by user. The additional metadata
 694                 // queries should use a regular slave since the lookup pattern is not all by user.
 695                 $this->mDbSecondary = wfGetDB( DB_SLAVE ); // any random slave
 696                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
 697         }
 698
 699         function getDefaultQuery() {
 700                 $query = parent::getDefaultQuery();
 701                 $query['target'] = $this->target;
 702
 703                 return $query;
 704         }
 705
 706         /**
 707          * This method basically executes the exact same code as the parent class, though with
 708          * a hook added, to allow extentions to add additional queries.
 709          *
 710          * @param string $offset index offset, inclusive
 711          * @param $limit Integer: exact query limit
 712          * @param $descending Boolean: query direction, false for ascending, true for descending
 713          * @return ResultWrapper
 714          */
 715         function reallyDoQuery( $offset, $limit, $descending ) {
 716                 list( $tables, $fields, $conds, $fname, $options, $join_conds ) = $this->buildQueryInfo(
 717                         $offset,
 718                         $limit,
 719                         $descending
 720                 );
 721                 $pager = $this;
 722
 723                 /*
 724                  * This hook will allow extensions to add in additional queries, so they can get their data
 725                  * in My Contributions as well. Extensions should append their results to the $data array.
 726                  *
 727                  * Extension queries have to implement the navbar requirement as well. They should
 728                  * - have a column aliased as $pager->getIndexField()
 729                  * - have LIMIT set
 730                  * - have a WHERE-clause that compares the $pager->getIndexField()-equivalent column to the offset
 731                  * - have the ORDER BY specified based upon the details provided by the navbar
 732                  *
 733                  * See includes/Pager.php buildQueryInfo() method on how to build LIMIT, WHERE & ORDER BY
 734                  *
 735                  * &$data: an array of results of all contribs queries
 736                  * $pager: the ContribsPager object hooked into
 737                  * $offset: see phpdoc above
 738                  * $limit: see phpdoc above
 739                  * $descending: see phpdoc above
 740                  */
 741                 $data = array( $this->mDb->select(
 742                         $tables, $fields, $conds, $fname, $options, $join_conds
 743                 ) );
 744                 wfRunHooks(
 745                         'ContribsPager::reallyDoQuery',
 746                         array( &$data, $pager, $offset, $limit, $descending )
 747                 );
 748
 749                 $result = array();
 750
 751                 // loop all results and collect them in an array
 752                 foreach ( $data as $query ) {
 753                         foreach ( $query as $i => $row ) {
 754                                 // use index column as key, allowing us to easily sort in PHP
 755                                 $result[$row->{$this->getIndexField()} . "-$i"] = $row;
 756                         }
 757                 }
 758
 759                 // sort results
 760                 if ( $descending ) {
 761                         ksort( $result );
 762                 } else {
 763                         krsort( $result );
 764                 }
 765
 766                 // enforce limit
 767                 $result = array_slice( $result, 0, $limit );
 768
 769                 // get rid of array keys
 770                 $result = array_values( $result );
 771
 772                 return new FakeResultWrapper( $result );
 773         }
 774
 775         function getQueryInfo() {
 776                 list( $tables, $index, $userCond, $join_cond ) = $this->getUserCond();
 777
 778                 $user = $this->getUser();
 779                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
 780
 781                 // Paranoia: avoid brute force searches (bug 17342)
 782                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 783                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0';
 784                 } elseif ( !$user->isAllowed( 'suppressrevision' ) ) {
 785                         $conds[] = $this->mDb->bitAnd( 'rev_deleted', Revision::SUPPRESSED_USER ) .
 786                                 ' != ' . Revision::SUPPRESSED_USER;
 787                 }
 788
 789                 # Don't include orphaned revisions
 790                 $join_cond['page'] = Revision::pageJoinCond();
 791                 # Get the current user name for accounts
 792                 $join_cond['user'] = Revision::userJoinCond();
 793
 794                 $options = array();
 795                 if ( $index ) {
 796                         $options['USE INDEX'] = array( 'revision' => $index );
 797                 }
 798
 799                 $queryInfo = array(
 800                         'tables' => $tables,
 801                         'fields' => array_merge(
 802                                 Revision::selectFields(),
 803                                 Revision::selectUserFields(),
 804                                 array( 'page_namespace', 'page_title', 'page_is_new',
 805                                         'page_latest', 'page_is_redirect', 'page_len' )
 806                         ),
 807                         'conds' => $conds,
 808                         'options' => $options,
 809                         'join_conds' => $join_cond
 810                 );
 811
 812                 ChangeTags::modifyDisplayQuery(
 813                         $queryInfo['tables'],
 814                         $queryInfo['fields'],
 815                         $queryInfo['conds'],
 816                         $queryInfo['join_conds'],
 817                         $queryInfo['options'],
 818                         $this->tagFilter
 819                 );
 820
 821                 wfRunHooks( 'ContribsPager::getQueryInfo', array( &$this, &$queryInfo ) );
 822
 823                 return $queryInfo;
 824         }
 825
 826         function getUserCond() {
 827                 $condition = array();
 828                 $join_conds = array();
 829                 $tables = array( 'revision', 'page', 'user' );
 830                 $index = false;
 831                 if ( $this->contribs == 'newbie' ) {
 832                         $max = $this->mDb->selectField( 'user', 'max(user_id)', false, __METHOD__ );
 833                         $condition[] = 'rev_user >' . (int)( $max - $max / 100 );
 834                         # ignore local groups with the bot right
 835                         # @todo FIXME: Global groups may have 'bot' rights
 836                         $groupsWithBotPermission = User::getGroupsWithPermission( 'bot' );
 837                         if ( count( $groupsWithBotPermission ) ) {
 838                                 $tables[] = 'user_groups';
 839                                 $condition[] = 'ug_group IS NULL';
 840                                 $join_conds['user_groups'] = array(
 841                                         'LEFT JOIN', array(
 842                                                 'ug_user = rev_user',
 843                                                 'ug_group' => $groupsWithBotPermission
 844                                         )
 845                                 );
 846                         }
 847                 } else {
 848                         $uid = User::idFromName( $this->target );
 849                         if ( $uid ) {
 850                                 $condition['rev_user'] = $uid;
 851                                 $index = 'user_timestamp';
 852                         } else {
 853                                 $condition['rev_user_text'] = $this->target;
 854                                 $index = 'usertext_timestamp';
 855                         }
 856                 }
 857
 858                 if ( $this->deletedOnly ) {
 859                         $condition[] = 'rev_deleted != 0';
 860                 }
 861
 862                 if ( $this->topOnly ) {
 863                         $condition[] = 'rev_id = page_latest';
 864                 }
 865
 866                 if ( $this->newOnly ) {
 867                         $condition[] = 'rev_parent_id = 0';
 868                 }
 869
 870                 return array( $tables, $index, $condition, $join_conds );
 871         }
 872
 873         function getNamespaceCond() {
 874                 if ( $this->namespace !== '' ) {
 875                         $selectedNS = $this->mDb->addQuotes( $this->namespace );
 876                         $eq_op = $this->nsInvert ? '!=' : '=';
 877                         $bool_op = $this->nsInvert ? 'AND' : 'OR';
 878
 879                         if ( !$this->associated ) {
 880                                 return array( "page_namespace $eq_op $selectedNS" );
 881                         }
 882
 883                         $associatedNS = $this->mDb->addQuotes(
 884                                 MWNamespace::getAssociated( $this->namespace )
 885                         );
 886
 887                         return array(
 888                                 "page_namespace $eq_op $selectedNS " .
 889                                         $bool_op .
 890                                         " page_namespace $eq_op $associatedNS"
 891                         );
 892                 }
 893
 894                 return array();
 895         }
 896
 897         function getIndexField() {
 898                 return 'rev_timestamp';
 899         }
 900
 901         function doBatchLookups() {
 902                 # Do a link batch query
 903                 $this->mResult->seek( 0 );
 904                 $revIds = array();
 905                 $batch = new LinkBatch();
 906                 # Give some pointers to make (last) links
 907                 foreach ( $this->mResult as $row ) {
 908                         if ( isset( $row->rev_parent_id ) && $row->rev_parent_id ) {
 909                                 $revIds[] = $row->rev_parent_id;
 910                         }
 911                         if ( isset( $row->rev_id ) ) {
 912                                 if ( $this->contribs === 'newbie' ) { // multiple users
 913                                         $batch->add( NS_USER, $row->user_name );
 914                                         $batch->add( NS_USER_TALK, $row->user_name );
 915                                 }
 916                                 $batch->add( $row->page_namespace, $row->page_title );
 917                         }
 918                 }
 919                 $this->mParentLens = Revision::getParentLengths( $this->mDbSecondary, $revIds );
 920                 $batch->execute();
 921                 $this->mResult->seek( 0 );
 922         }
 923
 924         /**
 925          * @return string
 926          */
 927         function getStartBody() {
 928                 return "<ul>\n";
 929         }
 930
 931         /**
 932          * @return string
 933          */
 934         function getEndBody() {
 935                 return "</ul>\n";
 936         }
 937
 938         /**
 939          * Generates each row in the contributions list.
 940          *
 941          * Contributions which are marked "top" are currently on top of the history.
 942          * For these contributions, a [rollback] link is shown for users with roll-
 943          * back privileges. The rollback link restores the most recent version that
 944          * was not written by the target user.
 945          *
 946          * @todo This would probably look a lot nicer in a table.
 947          * @param $row
 948          * @return string
 949          */
 950         function formatRow( $row ) {
 951                 wfProfileIn( __METHOD__ );
 952
 953                 $ret = '';
 954                 $classes = array();
 955
 956                 /*
 957                  * There may be more than just revision rows. To make sure that we'll only be processing
 958                  * revisions here, let's _try_ to build a revision out of our row (without displaying
 959                  * notices though) and then trying to grab data from the built object. If we succeed,
 960                  * we're definitely dealing with revision data and we may proceed, if not, we'll leave it
 961                  * to extensions to subscribe to the hook to parse the row.
 962                  */
 963                 wfSuppressWarnings();
 964                 try {
 965                         $rev = new Revision( $row );
 966                         $validRevision = (bool)$rev->getId();
 967                 } catch ( MWException $e ) {
 968                         $validRevision = false;
 969                 }
 970                 wfRestoreWarnings();
 971
 972                 if ( $validRevision ) {
 973                         $classes = array();
 974
 975                         $page = Title::newFromRow( $row );
 976                         $link = Linker::link(
 977                                 $page,
 978                                 htmlspecialchars( $page->getPrefixedText() ),
 979                                 array( 'class' => 'mw-contributions-title' ),
 980                                 $page->isRedirect() ? array( 'redirect' => 'no' ) : array()
 981                         );
 982                         # Mark current revisions
 983                         $topmarktext = '';
 984                         $user = $this->getUser();
 985                         if ( $row->rev_id == $row->page_latest ) {
 986                                 $topmarktext .= '<span class="mw-uctop">' . $this->messages['uctop'] . '</span>';
 987                                 # Add rollback link
 988                                 if ( !$row->page_is_new && $page->quickUserCan( 'rollback', $user )
 989                                         && $page->quickUserCan( 'edit', $user )
 990                                 ) {
 991                                         $this->preventClickjacking();
 992                                         $topmarktext .= ' ' . Linker::generateRollback( $rev, $this->getContext() );
 993                                 }
 994                         }
 995                         # Is there a visible previous revision?
 996                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) && $rev->getParentId() !== 0 ) {
 997                                 $difftext = Linker::linkKnown(
 998                                         $page,
 999                                         $this->messages['diff'],
1000                                         array(),
1001                                         array(
1002                                                 'diff' => 'prev',
1003                                                 'oldid' => $row->rev_id
1004                                         )
1005                                 );
1006                         } else {
1007                                 $difftext = $this->messages['diff'];
1008                         }
1009                         $histlink = Linker::linkKnown(
1010                                 $page,
1011                                 $this->messages['hist'],
1012                                 array(),
1013                                 array( 'action' => 'history' )
1014                         );
1015
1016                         if ( $row->rev_parent_id === null ) {
1017                                 // For some reason rev_parent_id isn't populated for this row.
1018                                 // Its rumoured this is true on wikipedia for some revisions (bug 34922).
1019                                 // Next best thing is to have the total number of bytes.
1020                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
1021                                 $chardiff .= Linker::formatRevisionSize( $row->rev_len );
1022                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
1023                         } else {
1024                                 $parentLen = 0;
1025                                 if ( isset( $this->mParentLens[$row->rev_parent_id] ) ) {
1026                                         $parentLen = $this->mParentLens[$row->rev_parent_id];
1027                                 }
1028
1029                                 $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';
1030                                 $chardiff .= ChangesList::showCharacterDifference(
1031                                         $parentLen,
1032                                         $row->rev_len,
1033                                         $this->getContext()
1034                                 );
1035                                 $chardiff .= ' <span class="mw-changeslist-separator">. .</span> ';
1036                         }
1037
1038                         $lang = $this->getLanguage();
1039                         $comment = $lang->getDirMark() . Linker::revComment( $rev, false, true );
1040                         $date = $lang->userTimeAndDate( $row->rev_timestamp, $user );
1041                         if ( $rev->userCan( Revision::DELETED_TEXT, $user ) ) {
1042                                 $d = Linker::linkKnown(
1043                                         $page,
1044                                         htmlspecialchars( $date ),
1045                                         array( 'class' => 'mw-changeslist-date' ),
1046                                         array( 'oldid' => intval( $row->rev_id ) )
1047                                 );
1048                         } else {
1049                                 $d = htmlspecialchars( $date );
1050                         }
1051                         if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
1052                                 $d = '<span class="history-deleted">' . $d . '</span>';
1053                         }
1054
1055                         # Show user names for /newbies as there may be different users.
1056                         # Note that we already excluded rows with hidden user names.
1057                         if ( $this->contribs == 'newbie' ) {
1058                                 $userlink = ' . . ' . $lang->getDirMark() . Linker::userLink( $rev->getUser(), $rev->getUserText() );
1059                                 $userlink .= ' ' . $this->msg( 'parentheses' )->rawParams(
1060                                         Linker::userTalkLink( $rev->getUser(), $rev->getUserText() ) )->escaped() . ' ';
1061                         } else {
1062                                 $userlink = '';
1063                         }
1064
1065                         if ( $rev->getParentId() === 0 ) {
1066                                 $nflag = ChangesList::flag( 'newpage' );
1067                         } else {
1068                                 $nflag = '';
1069                         }
1070
1071                         if ( $rev->isMinor() ) {
1072                                 $mflag = ChangesList::flag( 'minor' );
1073                         } else {
1074                                 $mflag = '';
1075                         }
1076
1077                         $del = Linker::getRevDeleteLink( $user, $rev, $page );
1078                         if ( $del !== '' ) {
1079                                 $del .= ' ';
1080                         }
1081
1082                         $diffHistLinks = $this->msg( 'parentheses' )
1083                                 ->rawParams( $difftext . $this->messages['pipe-separator'] . $histlink )
1084                                 ->escaped();
1085                         $ret = "{$del}{$d} {$diffHistLinks}{$chardiff}{$nflag}{$mflag} ";
1086                         $ret .= "{$link}{$userlink} {$comment} {$topmarktext}";
1087
1088                         # Denote if username is redacted for this edit
1089                         if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
1090                                 $ret .= " <strong>" .
1091                                         $this->msg( 'rev-deleted-user-contribs' )->escaped() .
1092                                         "</strong>";
1093                         }
1094
1095                         # Tags, if any.
1096                         list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow(
1097                                 $row->ts_tags,
1098                                 'contributions'
1099                         );
1100                         $classes = array_merge( $classes, $newClasses );
1101                         $ret .= " $tagSummary";
1102                 }
1103
1104                 // Let extensions add data
1105                 wfRunHooks( 'ContributionsLineEnding', array( $this, &$ret, $row, &$classes ) );
1106
1107                 if ( $classes === array() && $ret === '' ) {
1108                         wfDebug( "Dropping Special:Contribution row that could not be formatted\n" );
1109                         $ret = "<!-- Could not format Special:Contribution row. -->\n";
1110                 } else {
1111                         $ret = Html::rawElement( 'li', array( 'class' => $classes ), $ret ) . "\n";
1112                 }
1113
1114                 wfProfileOut( __METHOD__ );
1115
1116                 return $ret;
1117         }
1118
1119         /**
1120          * Overwrite Pager function and return a helpful comment
1121          * @return string
1122          */
1123         function getSqlComment() {
1124                 if ( $this->namespace || $this->deletedOnly ) {
1125                         // potentially slow, see CR r58153
1126                         return 'contributions page filtered for namespace or RevisionDeleted edits';
1127                 } else {
1128                         return 'contributions page unfiltered';
1129                 }
1130         }
1131
1132         protected function preventClickjacking() {
1133                 $this->preventClickjacking = true;
1134         }
1135
1136         /**
1137          * @return bool
1138          */
1139         public function getPreventClickjacking() {
1140                 return $this->preventClickjacking;
1141         }
1142 }