includes/specials/SpecialDeletedContributions.php

   1 <?php
   2 /**
   3  * Implements Special:DeletedContributions
   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  * Implements Special:DeletedContributions to display archived revisions
  26  * @ingroup SpecialPage
  27  */
  28 class DeletedContribsPager extends IndexPager {
  29         public $mDefaultDirection = IndexPager::DIR_DESCENDING;
  30         public $messages;
  31         public $target;
  32         public $namespace = '';
  33         public $mDb;
  34
  35         /**
  36          * @var string Navigation bar with paging links.
  37          */
  38         protected $mNavigationBar;
  39
  40         function __construct( IContextSource $context, $target, $namespace = false ) {
  41                 parent::__construct( $context );
  42                 $msgs = array( 'deletionlog', 'undeleteviewlink', 'diff' );
  43                 foreach ( $msgs as $msg ) {
  44                         $this->messages[$msg] = $this->msg( $msg )->escaped();
  45                 }
  46                 $this->target = $target;
  47                 $this->namespace = $namespace;
  48                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
  49         }
  50
  51         function getDefaultQuery() {
  52                 $query = parent::getDefaultQuery();
  53                 $query['target'] = $this->target;
  54
  55                 return $query;
  56         }
  57
  58         function getQueryInfo() {
  59                 list( $index, $userCond ) = $this->getUserCond();
  60                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
  61                 $user = $this->getUser();
  62                 // Paranoia: avoid brute force searches (bug 17792)
  63                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
  64                         $conds[] = $this->mDb->bitAnd( 'ar_deleted', Revision::DELETED_USER ) . ' = 0';
  65                 } elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
  66                         $conds[] = $this->mDb->bitAnd( 'ar_deleted', Revision::SUPPRESSED_USER ) .
  67                                 ' != ' . Revision::SUPPRESSED_USER;
  68                 }
  69
  70                 return array(
  71                         'tables' => array( 'archive' ),
  72                         'fields' => array(
  73                                 'ar_rev_id', 'ar_namespace', 'ar_title', 'ar_timestamp', 'ar_comment',
  74                                 'ar_minor_edit', 'ar_user', 'ar_user_text', 'ar_deleted'
  75                         ),
  76                         'conds' => $conds,
  77                         'options' => array( 'USE INDEX' => $index )
  78                 );
  79         }
  80
  81         function getUserCond() {
  82                 $condition = array();
  83
  84                 $condition['ar_user_text'] = $this->target;
  85                 $index = 'usertext_timestamp';
  86
  87                 return array( $index, $condition );
  88         }
  89
  90         function getIndexField() {
  91                 return 'ar_timestamp';
  92         }
  93
  94         function getStartBody() {
  95                 return "<ul>\n";
  96         }
  97
  98         function getEndBody() {
  99                 return "</ul>\n";
 100         }
 101
 102         function getNavigationBar() {
 103                 if ( isset( $this->mNavigationBar ) ) {
 104                         return $this->mNavigationBar;
 105                 }
 106
 107                 $linkTexts = array(
 108                         'prev' => $this->msg( 'pager-newer-n' )->numParams( $this->mLimit )->escaped(),
 109                         'next' => $this->msg( 'pager-older-n' )->numParams( $this->mLimit )->escaped(),
 110                         'first' => $this->msg( 'histlast' )->escaped(),
 111                         'last' => $this->msg( 'histfirst' )->escaped()
 112                 );
 113
 114                 $pagingLinks = $this->getPagingLinks( $linkTexts );
 115                 $limitLinks = $this->getLimitLinks();
 116                 $lang = $this->getLanguage();
 117                 $limits = $lang->pipeList( $limitLinks );
 118
 119                 $firstLast = $lang->pipeList( array( $pagingLinks['first'], $pagingLinks['last'] ) );
 120                 $firstLast = $this->msg( 'parentheses' )->rawParams( $firstLast )->escaped();
 121                 $prevNext = $this->msg( 'viewprevnext' )
 122                         ->rawParams(
 123                                 $pagingLinks['prev'],
 124                                 $pagingLinks['next'],
 125                                 $limits
 126                         )->escaped();
 127                 $separator = $this->msg( 'word-separator' )->escaped();
 128                 $this->mNavigationBar = $firstLast . $separator . $prevNext;
 129
 130                 return $this->mNavigationBar;
 131         }
 132
 133         function getNamespaceCond() {
 134                 if ( $this->namespace !== '' ) {
 135                         return array( 'ar_namespace' => (int)$this->namespace );
 136                 } else {
 137                         return array();
 138                 }
 139         }
 140
 141         /**
 142          * Generates each row in the contributions list.
 143          *
 144          * Contributions which are marked "top" are currently on top of the history.
 145          * For these contributions, a [rollback] link is shown for users with sysop
 146          * privileges. The rollback link restores the most recent version that was not
 147          * written by the target user.
 148          *
 149          * @todo This would probably look a lot nicer in a table.
 150          * @param stdClass $row
 151          * @return string
 152          */
 153         function formatRow( $row ) {
 154
 155                 $page = Title::makeTitle( $row->ar_namespace, $row->ar_title );
 156
 157                 $rev = new Revision( array(
 158                         'title' => $page,
 159                         'id' => $row->ar_rev_id,
 160                         'comment' => $row->ar_comment,
 161                         'user' => $row->ar_user,
 162                         'user_text' => $row->ar_user_text,
 163                         'timestamp' => $row->ar_timestamp,
 164                         'minor_edit' => $row->ar_minor_edit,
 165                         'deleted' => $row->ar_deleted,
 166                 ) );
 167
 168                 $undelete = SpecialPage::getTitleFor( 'Undelete' );
 169
 170                 $logs = SpecialPage::getTitleFor( 'Log' );
 171                 $dellog = Linker::linkKnown(
 172                         $logs,
 173                         $this->messages['deletionlog'],
 174                         array(),
 175                         array(
 176                                 'type' => 'delete',
 177                                 'page' => $page->getPrefixedText()
 178                         )
 179                 );
 180
 181                 $reviewlink = Linker::linkKnown(
 182                         SpecialPage::getTitleFor( 'Undelete', $page->getPrefixedDBkey() ),
 183                         $this->messages['undeleteviewlink']
 184                 );
 185
 186                 $user = $this->getUser();
 187
 188                 if ( $user->isAllowed( 'deletedtext' ) ) {
 189                         $last = Linker::linkKnown(
 190                                 $undelete,
 191                                 $this->messages['diff'],
 192                                 array(),
 193                                 array(
 194                                         'target' => $page->getPrefixedText(),
 195                                         'timestamp' => $rev->getTimestamp(),
 196                                         'diff' => 'prev'
 197                                 )
 198                         );
 199                 } else {
 200                         $last = $this->messages['diff'];
 201                 }
 202
 203                 $comment = Linker::revComment( $rev );
 204                 $date = $this->getLanguage()->userTimeAndDate( $rev->getTimestamp(), $user );
 205                 $date = htmlspecialchars( $date );
 206
 207                 if ( !$user->isAllowed( 'undelete' ) || !$rev->userCan( Revision::DELETED_TEXT, $user ) ) {
 208                         $link = $date; // unusable link
 209                 } else {
 210                         $link = Linker::linkKnown(
 211                                 $undelete,
 212                                 $date,
 213                                 array( 'class' => 'mw-changeslist-date' ),
 214                                 array(
 215                                         'target' => $page->getPrefixedText(),
 216                                         'timestamp' => $rev->getTimestamp()
 217                                 )
 218                         );
 219                 }
 220                 // Style deleted items
 221                 if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 222                         $link = '<span class="history-deleted">' . $link . '</span>';
 223                 }
 224
 225                 $pagelink = Linker::link(
 226                         $page,
 227                         null,
 228                         array( 'class' => 'mw-changeslist-title' )
 229                 );
 230
 231                 if ( $rev->isMinor() ) {
 232                         $mflag = ChangesList::flag( 'minor' );
 233                 } else {
 234                         $mflag = '';
 235                 }
 236
 237                 // Revision delete link
 238                 $del = Linker::getRevDeleteLink( $user, $rev, $page );
 239                 if ( $del ) {
 240                         $del .= ' ';
 241                 }
 242
 243                 $tools = Html::rawElement(
 244                         'span',
 245                         array( 'class' => 'mw-deletedcontribs-tools' ),
 246                         $this->msg( 'parentheses' )->rawParams( $this->getLanguage()->pipeList(
 247                                 array( $last, $dellog, $reviewlink ) ) )->escaped()
 248                 );
 249
 250                 $separator = '<span class="mw-changeslist-separator">. .</span>';
 251                 $ret = "{$del}{$link} {$tools} {$separator} {$mflag} {$pagelink} {$comment}";
 252
 253                 # Denote if username is redacted for this edit
 254                 if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
 255                         $ret .= " <strong>" . $this->msg( 'rev-deleted-user-contribs' )->escaped() . "</strong>";
 256                 }
 257
 258                 $ret = Html::rawElement( 'li', array(), $ret ) . "\n";
 259
 260
 261                 return $ret;
 262         }
 263
 264         /**
 265          * Get the Database object in use
 266          *
 267          * @return IDatabase
 268          */
 269         public function getDatabase() {
 270                 return $this->mDb;
 271         }
 272 }
 273
 274 class DeletedContributionsPage extends SpecialPage {
 275         function __construct() {
 276                 parent::__construct( 'DeletedContributions', 'deletedhistory',
 277                         /*listed*/true, /*function*/false, /*file*/false );
 278         }
 279
 280         /**
 281          * Special page "deleted user contributions".
 282          * Shows a list of the deleted contributions of a user.
 283          *
 284          * @param string $par (optional) user name of the user for which to show the contributions
 285          */
 286         function execute( $par ) {
 287                 $this->setHeaders();
 288                 $this->outputHeader();
 289
 290                 $user = $this->getUser();
 291
 292                 if ( !$this->userCanExecute( $user ) ) {
 293                         $this->displayRestrictionError();
 294
 295                         return;
 296                 }
 297
 298                 $request = $this->getRequest();
 299                 $out = $this->getOutput();
 300                 $out->setPageTitle( $this->msg( 'deletedcontributions-title' ) );
 301
 302                 $options = array();
 303
 304                 if ( $par !== null ) {
 305                         $target = $par;
 306                 } else {
 307                         $target = $request->getVal( 'target' );
 308                 }
 309
 310                 if ( !strlen( $target ) ) {
 311                         $out->addHTML( $this->getForm( '' ) );
 312
 313                         return;
 314                 }
 315
 316                 $options['limit'] = $request->getInt( 'limit',
 317                         $this->getConfig()->get( 'QueryPageDefaultLimit' ) );
 318                 $options['target'] = $target;
 319
 320                 $userObj = User::newFromName( $target, false );
 321                 if ( !$userObj ) {
 322                         $out->addHTML( $this->getForm( '' ) );
 323
 324                         return;
 325                 }
 326                 $this->getSkin()->setRelevantUser( $userObj );
 327
 328                 $target = $userObj->getName();
 329                 $out->addSubtitle( $this->getSubTitle( $userObj ) );
 330
 331                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 332                         $options['namespace'] = intval( $ns );
 333                 } else {
 334                         $options['namespace'] = '';
 335                 }
 336
 337                 $out->addHTML( $this->getForm( $options ) );
 338
 339                 $pager = new DeletedContribsPager( $this->getContext(), $target, $options['namespace'] );
 340                 if ( !$pager->getNumRows() ) {
 341                         $out->addWikiMsg( 'nocontribs' );
 342
 343                         return;
 344                 }
 345
 346                 # Show a message about slave lag, if applicable
 347                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 348                 if ( $lag > 0 ) {
 349                         $out->showLagWarning( $lag );
 350                 }
 351
 352                 $out->addHTML(
 353                         '<p>' . $pager->getNavigationBar() . '</p>' .
 354                                 $pager->getBody() .
 355                                 '<p>' . $pager->getNavigationBar() . '</p>' );
 356
 357                 # If there were contributions, and it was a valid user or IP, show
 358                 # the appropriate "footer" message - WHOIS tools, etc.
 359                 if ( $target != 'newbies' ) {
 360                         $message = IP::isIPAddress( $target ) ?
 361                                 'sp-contributions-footer-anon' :
 362                                 'sp-contributions-footer';
 363
 364                         if ( !$this->msg( $message )->isDisabled() ) {
 365                                 $out->wrapWikiMsg(
 366                                         "<div class='mw-contributions-footer'>\n$1\n</div>",
 367                                         array( $message, $target )
 368                                 );
 369                         }
 370                 }
 371         }
 372
 373         /**
 374          * Generates the subheading with links
 375          * @param User $userObj User object for the target
 376          * @return string Appropriately-escaped HTML to be output literally
 377          * @todo FIXME: Almost the same as contributionsSub in SpecialContributions.php. Could be combined.
 378          */
 379         function getSubTitle( $userObj ) {
 380                 if ( $userObj->isAnon() ) {
 381                         $user = htmlspecialchars( $userObj->getName() );
 382                 } else {
 383                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 384                 }
 385                 $links = '';
 386                 $nt = $userObj->getUserPage();
 387                 $id = $userObj->getID();
 388                 $talk = $nt->getTalkPage();
 389                 if ( $talk ) {
 390                         # Talk page link
 391                         $tools[] = Linker::link( $talk, $this->msg( 'sp-contributions-talk' )->escaped() );
 392                         if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $nt->getText() ) ) ) {
 393                                 # Block / Change block / Unblock links
 394                                 if ( $this->getUser()->isAllowed( 'block' ) ) {
 395                                         if ( $userObj->isBlocked() ) {
 396                                                 $tools[] = Linker::linkKnown( # Change block link
 397                                                         SpecialPage::getTitleFor( 'Block', $nt->getDBkey() ),
 398                                                         $this->msg( 'change-blocklink' )->escaped()
 399                                                 );
 400                                                 $tools[] = Linker::linkKnown( # Unblock link
 401                                                         SpecialPage::getTitleFor( 'BlockList' ),
 402                                                         $this->msg( 'unblocklink' )->escaped(),
 403                                                         array(),
 404                                                         array(
 405                                                                 'action' => 'unblock',
 406                                                                 'ip' => $nt->getDBkey()
 407                                                         )
 408                                                 );
 409                                         } else {
 410                                                 # User is not blocked
 411                                                 $tools[] = Linker::linkKnown( # Block link
 412                                                         SpecialPage::getTitleFor( 'Block', $nt->getDBkey() ),
 413                                                         $this->msg( 'blocklink' )->escaped()
 414                                                 );
 415                                         }
 416                                 }
 417                                 # Block log link
 418                                 $tools[] = Linker::linkKnown(
 419                                         SpecialPage::getTitleFor( 'Log' ),
 420                                         $this->msg( 'sp-contributions-blocklog' )->escaped(),
 421                                         array(),
 422                                         array(
 423                                                 'type' => 'block',
 424                                                 'page' => $nt->getPrefixedText()
 425                                         )
 426                                 );
 427                                 # Suppression log link (bug 59120)
 428                                 if ( $this->getUser()->isAllowed( 'suppressionlog' ) ) {
 429                                         $tools[] = Linker::linkKnown(
 430                                                 SpecialPage::getTitleFor( 'Log', 'suppress' ),
 431                                                 $this->msg( 'sp-contributions-suppresslog' )->escaped(),
 432                                                 array(),
 433                                                 array( 'offender' => $userObj->getName() )
 434                                         );
 435                                 }
 436                         }
 437
 438                         # Uploads
 439                         $tools[] = Linker::linkKnown(
 440                                 SpecialPage::getTitleFor( 'Listfiles', $userObj->getName() ),
 441                                 $this->msg( 'sp-contributions-uploads' )->escaped()
 442                         );
 443
 444                         # Other logs link
 445                         $tools[] = Linker::linkKnown(
 446                                 SpecialPage::getTitleFor( 'Log' ),
 447                                 $this->msg( 'sp-contributions-logs' )->escaped(),
 448                                 array(),
 449                                 array( 'user' => $nt->getText() )
 450                         );
 451                         # Link to contributions
 452                         $tools[] = Linker::linkKnown(
 453                                 SpecialPage::getTitleFor( 'Contributions', $nt->getDBkey() ),
 454                                 $this->msg( 'sp-deletedcontributions-contribs' )->escaped()
 455                         );
 456
 457                         # Add a link to change user rights for privileged users
 458                         $userrightsPage = new UserrightsPage();
 459                         $userrightsPage->setContext( $this->getContext() );
 460                         if ( $userrightsPage->userCanChangeRights( $userObj ) ) {
 461                                 $tools[] = Linker::linkKnown(
 462                                         SpecialPage::getTitleFor( 'Userrights', $nt->getDBkey() ),
 463                                         $this->msg( 'sp-contributions-userrights' )->escaped()
 464                                 );
 465                         }
 466
 467                         Hooks::run( 'ContributionsToolLinks', array( $id, $nt, &$tools ) );
 468
 469                         $links = $this->getLanguage()->pipeList( $tools );
 470
 471                         // Show a note if the user is blocked and display the last block log entry.
 472                         $block = Block::newFromTarget( $userObj, $userObj );
 473                         if ( !is_null( $block ) && $block->getType() != Block::TYPE_AUTO ) {
 474                                 if ( $block->getType() == Block::TYPE_RANGE ) {
 475                                         $nt = MWNamespace::getCanonicalName( NS_USER ) . ':' . $block->getTarget();
 476                                 }
 477
 478                                 // LogEventsList::showLogExtract() wants the first parameter by ref
 479                                 $out = $this->getOutput();
 480                                 LogEventsList::showLogExtract(
 481                                         $out,
 482                                         'block',
 483                                         $nt,
 484                                         '',
 485                                         array(
 486                                                 'lim' => 1,
 487                                                 'showIfEmpty' => false,
 488                                                 'msgKey' => array(
 489                                                         'sp-contributions-blocked-notice',
 490                                                         $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 491                                                 ),
 492                                                 'offset' => '' # don't use $this->getRequest() parameter offset
 493                                         )
 494                                 );
 495                         }
 496                 }
 497
 498                 return $this->msg( 'contribsub2' )->rawParams( $user, $links )->params( $userObj->getName() );
 499         }
 500
 501         /**
 502          * Generates the namespace selector form with hidden attributes.
 503          * @param array $options The options to be included.
 504          * @return string
 505          */
 506         function getForm( $options ) {
 507                 $options['title'] = $this->getPageTitle()->getPrefixedText();
 508                 if ( !isset( $options['target'] ) ) {
 509                         $options['target'] = '';
 510                 } else {
 511                         $options['target'] = str_replace( '_', ' ', $options['target'] );
 512                 }
 513
 514                 if ( !isset( $options['namespace'] ) ) {
 515                         $options['namespace'] = '';
 516                 }
 517
 518                 if ( !isset( $options['contribs'] ) ) {
 519                         $options['contribs'] = 'user';
 520                 }
 521
 522                 if ( $options['contribs'] == 'newbie' ) {
 523                         $options['target'] = '';
 524                 }
 525
 526                 $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => wfScript() ) );
 527
 528                 foreach ( $options as $name => $value ) {
 529                         if ( in_array( $name, array( 'namespace', 'target', 'contribs' ) ) ) {
 530                                 continue;
 531                         }
 532                         $f .= "\t" . Html::hidden( $name, $value ) . "\n";
 533                 }
 534
 535                 $this->getOutput()->addModules( 'mediawiki.userSuggest' );
 536
 537                 $f .= Xml::openElement( 'fieldset' );
 538                 $f .= Xml::element( 'legend', array(), $this->msg( 'sp-contributions-search' )->text() );
 539                 $f .= Xml::tags(
 540                         'label',
 541                         array( 'for' => 'target' ),
 542                         $this->msg( 'sp-contributions-username' )->parse()
 543                 ) . ' ';
 544                 $f .= Html::input(
 545                         'target',
 546                         $options['target'],
 547                         'text',
 548                         array(
 549                                 'size' => '20',
 550                                 'required' => '',
 551                                 'class' => array(
 552                                         'mw-autocomplete-user', // used by mediawiki.userSuggest
 553                                 ),
 554                         ) + ( $options['target'] ? array() : array( 'autofocus' ) )
 555                 ) . ' ';
 556                 $f .= Html::namespaceSelector(
 557                         array(
 558                                 'selected' => $options['namespace'],
 559                                 'all' => '',
 560                                 'label' => $this->msg( 'namespace' )->text()
 561                         ),
 562                         array(
 563                                 'name' => 'namespace',
 564                                 'id' => 'namespace',
 565                                 'class' => 'namespaceselector',
 566                         )
 567                 ) . ' ';
 568                 $f .= Xml::submitButton( $this->msg( 'sp-contributions-submit' )->text() );
 569                 $f .= Xml::closeElement( 'fieldset' );
 570                 $f .= Xml::closeElement( 'form' );
 571
 572                 return $f;
 573         }
 574
 575         protected function getGroupName() {
 576                 return 'users';
 577         }
 578 }