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         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->isAllowed( 'suppressrevision' ) ) {
  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 $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                 global $wgQueryPageDefaultLimit;
 290
 291                 $this->setHeaders();
 292                 $this->outputHeader();
 293
 294                 $user = $this->getUser();
 295
 296                 if ( !$this->userCanExecute( $user ) ) {
 297                         $this->displayRestrictionError();
 298
 299                         return;
 300                 }
 301
 302                 $request = $this->getRequest();
 303                 $out = $this->getOutput();
 304                 $out->setPageTitle( $this->msg( 'deletedcontributions-title' ) );
 305
 306                 $options = array();
 307
 308                 if ( $par !== null ) {
 309                         $target = $par;
 310                 } else {
 311                         $target = $request->getVal( 'target' );
 312                 }
 313
 314                 if ( !strlen( $target ) ) {
 315                         $out->addHTML( $this->getForm( '' ) );
 316
 317                         return;
 318                 }
 319
 320                 $options['limit'] = $request->getInt( 'limit', $wgQueryPageDefaultLimit );
 321                 $options['target'] = $target;
 322
 323                 $userObj = User::newFromName( $target, false );
 324                 if ( !$userObj ) {
 325                         $out->addHTML( $this->getForm( '' ) );
 326
 327                         return;
 328                 }
 329                 $this->getSkin()->setRelevantUser( $userObj );
 330
 331                 $target = $userObj->getName();
 332                 $out->addSubtitle( $this->getSubTitle( $userObj ) );
 333
 334                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 335                         $options['namespace'] = intval( $ns );
 336                 } else {
 337                         $options['namespace'] = '';
 338                 }
 339
 340                 $out->addHTML( $this->getForm( $options ) );
 341
 342                 $pager = new DeletedContribsPager( $this->getContext(), $target, $options['namespace'] );
 343                 if ( !$pager->getNumRows() ) {
 344                         $out->addWikiMsg( 'nocontribs' );
 345
 346                         return;
 347                 }
 348
 349                 # Show a message about slave lag, if applicable
 350                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 351                 if ( $lag > 0 ) {
 352                         $out->showLagWarning( $lag );
 353                 }
 354
 355                 $out->addHTML(
 356                         '<p>' . $pager->getNavigationBar() . '</p>' .
 357                                 $pager->getBody() .
 358                                 '<p>' . $pager->getNavigationBar() . '</p>' );
 359
 360                 # If there were contributions, and it was a valid user or IP, show
 361                 # the appropriate "footer" message - WHOIS tools, etc.
 362                 if ( $target != 'newbies' ) {
 363                         $message = IP::isIPAddress( $target ) ?
 364                                 'sp-contributions-footer-anon' :
 365                                 'sp-contributions-footer';
 366
 367                         if ( !$this->msg( $message )->isDisabled() ) {
 368                                 $out->wrapWikiMsg(
 369                                         "<div class='mw-contributions-footer'>\n$1\n</div>",
 370                                         array( $message, $target )
 371                                 );
 372                         }
 373                 }
 374         }
 375
 376         /**
 377          * Generates the subheading with links
 378          * @param $userObj User object for the target
 379          * @return String: appropriately-escaped HTML to be output literally
 380          * @todo FIXME: Almost the same as contributionsSub in SpecialContributions.php. Could be combined.
 381          */
 382         function getSubTitle( $userObj ) {
 383                 if ( $userObj->isAnon() ) {
 384                         $user = htmlspecialchars( $userObj->getName() );
 385                 } else {
 386                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 387                 }
 388                 $links = '';
 389                 $nt = $userObj->getUserPage();
 390                 $id = $userObj->getID();
 391                 $talk = $nt->getTalkPage();
 392                 if ( $talk ) {
 393                         # Talk page link
 394                         $tools[] = Linker::link( $talk, $this->msg( 'sp-contributions-talk' )->escaped() );
 395                         if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $nt->getText() ) ) ) {
 396                                 # Block / Change block / Unblock links
 397                                 if ( $this->getUser()->isAllowed( 'block' ) ) {
 398                                         if ( $userObj->isBlocked() ) {
 399                                                 $tools[] = Linker::linkKnown( # Change block link
 400                                                         SpecialPage::getTitleFor( 'Block', $nt->getDBkey() ),
 401                                                         $this->msg( 'change-blocklink' )->escaped()
 402                                                 );
 403                                                 $tools[] = Linker::linkKnown( # Unblock link
 404                                                         SpecialPage::getTitleFor( 'BlockList' ),
 405                                                         $this->msg( 'unblocklink' )->escaped(),
 406                                                         array(),
 407                                                         array(
 408                                                                 'action' => 'unblock',
 409                                                                 'ip' => $nt->getDBkey()
 410                                                         )
 411                                                 );
 412                                         } else {
 413                                                 # User is not blocked
 414                                                 $tools[] = Linker::linkKnown( # Block link
 415                                                         SpecialPage::getTitleFor( 'Block', $nt->getDBkey() ),
 416                                                         $this->msg( 'blocklink' )->escaped()
 417                                                 );
 418                                         }
 419                                 }
 420                                 # Block log link
 421                                 $tools[] = Linker::linkKnown(
 422                                         SpecialPage::getTitleFor( 'Log' ),
 423                                         $this->msg( 'sp-contributions-blocklog' )->escaped(),
 424                                         array(),
 425                                         array(
 426                                                 'type' => 'block',
 427                                                 'page' => $nt->getPrefixedText()
 428                                         )
 429                                 );
 430                         }
 431
 432                         # Uploads
 433                         $tools[] = Linker::linkKnown(
 434                                 SpecialPage::getTitleFor( 'Listfiles', $userObj->getName() ),
 435                                 $this->msg( 'sp-contributions-uploads' )->escaped()
 436                         );
 437
 438                         # Other logs link
 439                         $tools[] = Linker::linkKnown(
 440                                 SpecialPage::getTitleFor( 'Log' ),
 441                                 $this->msg( 'sp-contributions-logs' )->escaped(),
 442                                 array(),
 443                                 array( 'user' => $nt->getText() )
 444                         );
 445                         # Link to contributions
 446                         $tools[] = Linker::linkKnown(
 447                                 SpecialPage::getTitleFor( 'Contributions', $nt->getDBkey() ),
 448                                 $this->msg( 'sp-deletedcontributions-contribs' )->escaped()
 449                         );
 450
 451                         # Add a link to change user rights for privileged users
 452                         $userrightsPage = new UserrightsPage();
 453                         $userrightsPage->setContext( $this->getContext() );
 454                         if ( $userrightsPage->userCanChangeRights( $userObj ) ) {
 455                                 $tools[] = Linker::linkKnown(
 456                                         SpecialPage::getTitleFor( 'Userrights', $nt->getDBkey() ),
 457                                         $this->msg( 'sp-contributions-userrights' )->escaped()
 458                                 );
 459                         }
 460
 461                         wfRunHooks( 'ContributionsToolLinks', array( $id, $nt, &$tools ) );
 462
 463                         $links = $this->getLanguage()->pipeList( $tools );
 464
 465                         // Show a note if the user is blocked and display the last block log entry.
 466                         if ( $userObj->isBlocked() ) {
 467                                 // LogEventsList::showLogExtract() wants the first parameter by ref
 468                                 $out = $this->getOutput();
 469                                 LogEventsList::showLogExtract(
 470                                         $out,
 471                                         'block',
 472                                         $nt,
 473                                         '',
 474                                         array(
 475                                                 'lim' => 1,
 476                                                 'showIfEmpty' => false,
 477                                                 'msgKey' => array(
 478                                                         'sp-contributions-blocked-notice',
 479                                                         $nt->getText() # Support GENDER in 'sp-contributions-blocked-notice'
 480                                                 ),
 481                                                 'offset' => '' # don't use $this->getRequest() parameter offset
 482                                         )
 483                                 );
 484                         }
 485                 }
 486
 487                 return $this->msg( 'contribsub2' )->rawParams( $user, $links )->params( $userObj->getName() );
 488         }
 489
 490         /**
 491          * Generates the namespace selector form with hidden attributes.
 492          * @param array $options the options to be included.
 493          * @return string
 494          */
 495         function getForm( $options ) {
 496                 global $wgScript;
 497
 498                 $options['title'] = $this->getTitle()->getPrefixedText();
 499                 if ( !isset( $options['target'] ) ) {
 500                         $options['target'] = '';
 501                 } else {
 502                         $options['target'] = str_replace( '_', ' ', $options['target'] );
 503                 }
 504
 505                 if ( !isset( $options['namespace'] ) ) {
 506                         $options['namespace'] = '';
 507                 }
 508
 509                 if ( !isset( $options['contribs'] ) ) {
 510                         $options['contribs'] = 'user';
 511                 }
 512
 513                 if ( $options['contribs'] == 'newbie' ) {
 514                         $options['target'] = '';
 515                 }
 516
 517                 $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript ) );
 518
 519                 foreach ( $options as $name => $value ) {
 520                         if ( in_array( $name, array( 'namespace', 'target', 'contribs' ) ) ) {
 521                                 continue;
 522                         }
 523                         $f .= "\t" . Html::hidden( $name, $value ) . "\n";
 524                 }
 525
 526                 $f .= Xml::openElement( 'fieldset' );
 527                 $f .= Xml::element( 'legend', array(), $this->msg( 'sp-contributions-search' )->text() );
 528                 $f .= Xml::tags(
 529                         'label',
 530                         array( 'for' => 'target' ),
 531                         $this->msg( 'sp-contributions-username' )->parse()
 532                 ) . ' ';
 533                 $f .= Html::input(
 534                         'target',
 535                         $options['target'],
 536                         'text',
 537                         array(
 538                                 'size' => '20',
 539                                 'required' => ''
 540                         ) + ( $options['target'] ? array() : array( 'autofocus' ) )
 541                 ) . ' ';
 542                 $f .= Html::namespaceSelector(
 543                         array(
 544                                 'selected' => $options['namespace'],
 545                                 'all' => '',
 546                                 'label' => $this->msg( 'namespace' )->text()
 547                         ),
 548                         array(
 549                                 'name' => 'namespace',
 550                                 'id' => 'namespace',
 551                                 'class' => 'namespaceselector',
 552                         )
 553                 ) . ' ';
 554                 $f .= Xml::submitButton( $this->msg( 'sp-contributions-submit' )->text() );
 555                 $f .= Xml::closeElement( 'fieldset' );
 556                 $f .= Xml::closeElement( 'form' );
 557
 558                 return $f;
 559         }
 560
 561         protected function getGroupName() {
 562                 return 'users';
 563         }
 564 }