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