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                 wfProfileIn( __METHOD__ );
 155
 156                 $page = Title::makeTitle( $row->ar_namespace, $row->ar_title );
 157
 158                 $rev = new Revision( array(
 159                         'title' => $page,
 160                         'id' => $row->ar_rev_id,
 161                         'comment' => $row->ar_comment,
 162                         'user' => $row->ar_user,
 163                         'user_text' => $row->ar_user_text,
 164                         'timestamp' => $row->ar_timestamp,
 165                         'minor_edit' => $row->ar_minor_edit,
 166                         'deleted' => $row->ar_deleted,
 167                 ) );
 168
 169                 $undelete = SpecialPage::getTitleFor( 'Undelete' );
 170
 171                 $logs = SpecialPage::getTitleFor( 'Log' );
 172                 $dellog = Linker::linkKnown(
 173                         $logs,
 174                         $this->messages['deletionlog'],
 175                         array(),
 176                         array(
 177                                 'type' => 'delete',
 178                                 'page' => $page->getPrefixedText()
 179                         )
 180                 );
 181
 182                 $reviewlink = Linker::linkKnown(
 183                         SpecialPage::getTitleFor( 'Undelete', $page->getPrefixedDBkey() ),
 184                         $this->messages['undeleteviewlink']
 185                 );
 186
 187                 $user = $this->getUser();
 188
 189                 if ( $user->isAllowed( 'deletedtext' ) ) {
 190                         $last = Linker::linkKnown(
 191                                 $undelete,
 192                                 $this->messages['diff'],
 193                                 array(),
 194                                 array(
 195                                         'target' => $page->getPrefixedText(),
 196                                         'timestamp' => $rev->getTimestamp(),
 197                                         'diff' => 'prev'
 198                                 )
 199                         );
 200                 } else {
 201                         $last = $this->messages['diff'];
 202                 }
 203
 204                 $comment = Linker::revComment( $rev );
 205                 $date = $this->getLanguage()->userTimeAndDate( $rev->getTimestamp(), $user );
 206                 $date = htmlspecialchars( $date );
 207
 208                 if ( !$user->isAllowed( 'undelete' ) || !$rev->userCan( Revision::DELETED_TEXT, $user ) ) {
 209                         $link = $date; // unusable link
 210                 } else {
 211                         $link = Linker::linkKnown(
 212                                 $undelete,
 213                                 $date,
 214                                 array( 'class' => 'mw-changeslist-date' ),
 215                                 array(
 216                                         'target' => $page->getPrefixedText(),
 217                                         'timestamp' => $rev->getTimestamp()
 218                                 )
 219                         );
 220                 }
 221                 // Style deleted items
 222                 if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 223                         $link = '<span class="history-deleted">' . $link . '</span>';
 224                 }
 225
 226                 $pagelink = Linker::link(
 227                         $page,
 228                         null,
 229                         array( 'class' => 'mw-changeslist-title' )
 230                 );
 231
 232                 if ( $rev->isMinor() ) {
 233                         $mflag = ChangesList::flag( 'minor' );
 234                 } else {
 235                         $mflag = '';
 236                 }
 237
 238                 // Revision delete link
 239                 $del = Linker::getRevDeleteLink( $user, $rev, $page );
 240                 if ( $del ) {
 241                         $del .= ' ';
 242                 }
 243
 244                 $tools = Html::rawElement(
 245                         'span',
 246                         array( 'class' => 'mw-deletedcontribs-tools' ),
 247                         $this->msg( 'parentheses' )->rawParams( $this->getLanguage()->pipeList(
 248                                 array( $last, $dellog, $reviewlink ) ) )->escaped()
 249                 );
 250
 251                 $separator = '<span class="mw-changeslist-separator">. .</span>';
 252                 $ret = "{$del}{$link} {$tools} {$separator} {$mflag} {$pagelink} {$comment}";
 253
 254                 # Denote if username is redacted for this edit
 255                 if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
 256                         $ret .= " <strong>" . $this->msg( 'rev-deleted-user-contribs' )->escaped() . "</strong>";
 257                 }
 258
 259                 $ret = Html::rawElement( 'li', array(), $ret ) . "\n";
 260
 261                 wfProfileOut( __METHOD__ );
 262
 263                 return $ret;
 264         }
 265
 266         /**
 267          * Get the Database object in use
 268          *
 269          * @return DatabaseBase
 270          */
 271         public function getDatabase() {
 272                 return $this->mDb;
 273         }
 274 }
 275
 276 class DeletedContributionsPage extends SpecialPage {
 277         function __construct() {
 278                 parent::__construct( 'DeletedContributions', 'deletedhistory',
 279                         /*listed*/true, /*function*/false, /*file*/false );
 280         }
 281
 282         /**
 283          * Special page "deleted user contributions".
 284          * Shows a list of the deleted contributions of a user.
 285          *
 286          * @param string $par (optional) user name of the user for which to show the contributions
 287          */
 288         function execute( $par ) {
 289                 $this->setHeaders();
 290                 $this->outputHeader();
 291
 292                 $user = $this->getUser();
 293
 294                 if ( !$this->userCanExecute( $user ) ) {
 295                         $this->displayRestrictionError();
 296
 297                         return;
 298                 }
 299
 300                 $request = $this->getRequest();
 301                 $out = $this->getOutput();
 302                 $out->setPageTitle( $this->msg( 'deletedcontributions-title' ) );
 303
 304                 $options = array();
 305
 306                 if ( $par !== null ) {
 307                         $target = $par;
 308                 } else {
 309                         $target = $request->getVal( 'target' );
 310                 }
 311
 312                 if ( !strlen( $target ) ) {
 313                         $out->addHTML( $this->getForm( '' ) );
 314
 315                         return;
 316                 }
 317
 318                 $options['limit'] = $request->getInt( 'limit',
 319                         $this->getConfig()->get( 'QueryPageDefaultLimit' ) );
 320                 $options['target'] = $target;
 321
 322                 $userObj = User::newFromName( $target, false );
 323                 if ( !$userObj ) {
 324                         $out->addHTML( $this->getForm( '' ) );
 325
 326                         return;
 327                 }
 328                 $this->getSkin()->setRelevantUser( $userObj );
 329
 330                 $target = $userObj->getName();
 331                 $out->addSubtitle( $this->getSubTitle( $userObj ) );
 332
 333                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 334                         $options['namespace'] = intval( $ns );
 335                 } else {
 336                         $options['namespace'] = '';
 337                 }
 338
 339                 $out->addHTML( $this->getForm( $options ) );
 340
 341                 $pager = new DeletedContribsPager( $this->getContext(), $target, $options['namespace'] );
 342                 if ( !$pager->getNumRows() ) {
 343                         $out->addWikiMsg( 'nocontribs' );
 344
 345                         return;
 346                 }
 347
 348                 # Show a message about slave lag, if applicable
 349                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 350                 if ( $lag > 0 ) {
 351                         $out->showLagWarning( $lag );
 352                 }
 353
 354                 $out->addHTML(
 355                         '<p>' . $pager->getNavigationBar() . '</p>' .
 356                                 $pager->getBody() .
 357                                 '<p>' . $pager->getNavigationBar() . '</p>' );
 358
 359                 # If there were contributions, and it was a valid user or IP, show
 360                 # the appropriate "footer" message - WHOIS tools, etc.
 361                 if ( $target != 'newbies' ) {
 362                         $message = IP::isIPAddress( $target ) ?
 363                                 'sp-contributions-footer-anon' :
 364                                 'sp-contributions-footer';
 365
 366                         if ( !$this->msg( $message )->isDisabled() ) {
 367                                 $out->wrapWikiMsg(
 368                                         "<div class='mw-contributions-footer'>\n$1\n</div>",
 369                                         array( $message, $target )
 370                                 );
 371                         }
 372                 }
 373         }
 374
 375         /**
 376          * Generates the subheading with links
 377          * @param User $userObj User object for the target
 378          * @return string Appropriately-escaped HTML to be output literally
 379          * @todo FIXME: Almost the same as contributionsSub in SpecialContributions.php. Could be combined.
 380          */
 381         function getSubTitle( $userObj ) {
 382                 if ( $userObj->isAnon() ) {
 383                         $user = htmlspecialchars( $userObj->getName() );
 384                 } else {
 385                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 386                 }
 387                 $links = '';
 388                 $nt = $userObj->getUserPage();
 389                 $id = $userObj->getID();
 390                 $talk = $nt->getTalkPage();
 391                 if ( $talk ) {
 392                         # Talk page link
 393                         $tools[] = Linker::link( $talk, $this->msg( 'sp-contributions-talk' )->escaped() );
 394                         if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $nt->getText() ) ) ) {
 395                                 # Block / Change block / Unblock links
 396                                 if ( $this->getUser()->isAllowed( 'block' ) ) {
 397                                         if ( $userObj->isBlocked() ) {
 398                                                 $tools[] = Linker::linkKnown( # Change block link
 399                                                         SpecialPage::getTitleFor( 'Block', $nt->getDBkey() ),
 400                                                         $this->msg( 'change-blocklink' )->escaped()
 401                                                 );
 402                                                 $tools[] = Linker::linkKnown( # Unblock link
 403                                                         SpecialPage::getTitleFor( 'BlockList' ),
 404                                                         $this->msg( 'unblocklink' )->escaped(),
 405                                                         array(),
 406                                                         array(
 407                                                                 'action' => 'unblock',
 408                                                                 'ip' => $nt->getDBkey()
 409                                                         )
 410                                                 );
 411                                         } else {
 412                                                 # User is not blocked
 413                                                 $tools[] = Linker::linkKnown( # Block link
 414                                                         SpecialPage::getTitleFor( 'Block', $nt->getDBkey() ),
 415                                                         $this->msg( 'blocklink' )->escaped()
 416                                                 );
 417                                         }
 418                                 }
 419                                 # Block log link
 420                                 $tools[] = Linker::linkKnown(
 421                                         SpecialPage::getTitleFor( 'Log' ),
 422                                         $this->msg( 'sp-contributions-blocklog' )->escaped(),
 423                                         array(),
 424                                         array(
 425                                                 'type' => 'block',
 426                                                 'page' => $nt->getPrefixedText()
 427                                         )
 428                                 );
 429                                 # Suppression log link (bug 59120)
 430                                 if ( $this->getUser()->isAllowed( 'suppressionlog' ) ) {
 431                                         $tools[] = Linker::linkKnown(
 432                                                 SpecialPage::getTitleFor( 'Log', 'suppress' ),
 433                                                 $this->msg( 'sp-contributions-suppresslog' )->escaped(),
 434                                                 array(),
 435                                                 array( 'offender' => $userObj->getName() )
 436                                         );
 437                                 }
 438                         }
 439
 440                         # Uploads
 441                         $tools[] = Linker::linkKnown(
 442                                 SpecialPage::getTitleFor( 'Listfiles', $userObj->getName() ),
 443                                 $this->msg( 'sp-contributions-uploads' )->escaped()
 444                         );
 445
 446                         # Other logs link
 447                         $tools[] = Linker::linkKnown(
 448                                 SpecialPage::getTitleFor( 'Log' ),
 449                                 $this->msg( 'sp-contributions-logs' )->escaped(),
 450                                 array(),
 451                                 array( 'user' => $nt->getText() )
 452                         );
 453                         # Link to contributions
 454                         $tools[] = Linker::linkKnown(
 455                                 SpecialPage::getTitleFor( 'Contributions', $nt->getDBkey() ),
 456                                 $this->msg( 'sp-deletedcontributions-contribs' )->escaped()
 457                         );
 458
 459                         # Add a link to change user rights for privileged users
 460                         $userrightsPage = new UserrightsPage();
 461                         $userrightsPage->setContext( $this->getContext() );
 462                         if ( $userrightsPage->userCanChangeRights( $userObj ) ) {
 463                                 $tools[] = Linker::linkKnown(
 464                                         SpecialPage::getTitleFor( 'Userrights', $nt->getDBkey() ),
 465                                         $this->msg( 'sp-contributions-userrights' )->escaped()
 466                                 );
 467                         }
 468
 469                         wfRunHooks( 'ContributionsToolLinks', array( $id, $nt, &$tools ) );
 470
 471                         $links = $this->getLanguage()->pipeList( $tools );
 472
 473                         // Show a note if the user is blocked and display the last block log entry.
 474                         $block = Block::newFromTarget( $userObj, $userObj );
 475                         if ( !is_null( $block ) && $block->getType() != Block::TYPE_AUTO ) {
 476                                 if ( $block->getType() == Block::TYPE_RANGE ) {
 477                                         $nt = MWNamespace::getCanonicalName( NS_USER ) . ':' . $block->getTarget();
 478                                 }
 479
 480                                 // LogEventsList::showLogExtract() wants the first parameter by ref
 481                                 $out = $this->getOutput();
 482                                 LogEventsList::showLogExtract(
 483                                         $out,
 484                                         'block',
 485                                         $nt,
 486                                         '',
 487                                         array(
 488                                                 'lim' => 1,
 489                                                 'showIfEmpty' => false,
 490                                                 'msgKey' => array(
 491                                                         'sp-contributions-blocked-notice',
 492                                                         $userObj->getName() # Support GENDER in 'sp-contributions-blocked-notice'
 493                                                 ),
 494                                                 'offset' => '' # don't use $this->getRequest() parameter offset
 495                                         )
 496                                 );
 497                         }
 498                 }
 499
 500                 return $this->msg( 'contribsub2' )->rawParams( $user, $links )->params( $userObj->getName() );
 501         }
 502
 503         /**
 504          * Generates the namespace selector form with hidden attributes.
 505          * @param array $options The options to be included.
 506          * @return string
 507          */
 508         function getForm( $options ) {
 509                 $options['title'] = $this->getPageTitle()->getPrefixedText();
 510                 if ( !isset( $options['target'] ) ) {
 511                         $options['target'] = '';
 512                 } else {
 513                         $options['target'] = str_replace( '_', ' ', $options['target'] );
 514                 }
 515
 516                 if ( !isset( $options['namespace'] ) ) {
 517                         $options['namespace'] = '';
 518                 }
 519
 520                 if ( !isset( $options['contribs'] ) ) {
 521                         $options['contribs'] = 'user';
 522                 }
 523
 524                 if ( $options['contribs'] == 'newbie' ) {
 525                         $options['target'] = '';
 526                 }
 527
 528                 $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => wfScript() ) );
 529
 530                 foreach ( $options as $name => $value ) {
 531                         if ( in_array( $name, array( 'namespace', 'target', 'contribs' ) ) ) {
 532                                 continue;
 533                         }
 534                         $f .= "\t" . Html::hidden( $name, $value ) . "\n";
 535                 }
 536
 537                 $this->getOutput()->addModules( 'mediawiki.userSuggest' );
 538
 539                 $f .= Xml::openElement( 'fieldset' );
 540                 $f .= Xml::element( 'legend', array(), $this->msg( 'sp-contributions-search' )->text() );
 541                 $f .= Xml::tags(
 542                         'label',
 543                         array( 'for' => 'target' ),
 544                         $this->msg( 'sp-contributions-username' )->parse()
 545                 ) . ' ';
 546                 $f .= Html::input(
 547                         'target',
 548                         $options['target'],
 549                         'text',
 550                         array(
 551                                 'size' => '20',
 552                                 'required' => '',
 553                                 'class' => array(
 554                                         'mw-autocomplete-user', // used by mediawiki.userSuggest
 555                                 ),
 556                         ) + ( $options['target'] ? array() : array( 'autofocus' ) )
 557                 ) . ' ';
 558                 $f .= Html::namespaceSelector(
 559                         array(
 560                                 'selected' => $options['namespace'],
 561                                 'all' => '',
 562                                 'label' => $this->msg( 'namespace' )->text()
 563                         ),
 564                         array(
 565                                 'name' => 'namespace',
 566                                 'id' => 'namespace',
 567                                 'class' => 'namespaceselector',
 568                         )
 569                 ) . ' ';
 570                 $f .= Xml::submitButton( $this->msg( 'sp-contributions-submit' )->text() );
 571                 $f .= Xml::closeElement( 'fieldset' );
 572                 $f .= Xml::closeElement( 'form' );
 573
 574                 return $f;
 575         }
 576
 577         protected function getGroupName() {
 578                 return 'users';
 579         }
 580 }