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                 return $query;
  53         }
  54
  55         function getQueryInfo() {
  56                 list( $index, $userCond ) = $this->getUserCond();
  57                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
  58                 $user = $this->getUser();
  59                 // Paranoia: avoid brute force searches (bug 17792)
  60                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
  61                         $conds[] = $this->mDb->bitAnd( 'ar_deleted', Revision::DELETED_USER ) . ' = 0';
  62                 } elseif ( !$user->isAllowed( 'suppressrevision' ) ) {
  63                         $conds[] = $this->mDb->bitAnd( 'ar_deleted', Revision::SUPPRESSED_USER ) .
  64                                 ' != ' . Revision::SUPPRESSED_USER;
  65                 }
  66                 return array(
  67                         'tables' => array( 'archive' ),
  68                         'fields' => array(
  69                                 'ar_rev_id', 'ar_namespace', 'ar_title', 'ar_timestamp', 'ar_comment',
  70                                 'ar_minor_edit', 'ar_user', 'ar_user_text', 'ar_deleted'
  71                         ),
  72                         'conds' => $conds,
  73                         'options' => array( 'USE INDEX' => $index )
  74                 );
  75         }
  76
  77         function getUserCond() {
  78                 $condition = array();
  79
  80                 $condition['ar_user_text'] = $this->target;
  81                 $index = 'usertext_timestamp';
  82
  83                 return array( $index, $condition );
  84         }
  85
  86         function getIndexField() {
  87                 return 'ar_timestamp';
  88         }
  89
  90         function getStartBody() {
  91                 return "<ul>\n";
  92         }
  93
  94         function getEndBody() {
  95                 return "</ul>\n";
  96         }
  97
  98         function getNavigationBar() {
  99                 if ( isset( $this->mNavigationBar ) ) {
 100                         return $this->mNavigationBar;
 101                 }
 102
 103                 $linkTexts = array(
 104                         'prev' => $this->msg( 'pager-newer-n' )->numParams( $this->mLimit )->escaped(),
 105                         'next' => $this->msg( 'pager-older-n' )->numParams( $this->mLimit )->escaped(),
 106                         'first' => $this->msg( 'histlast' )->escaped(),
 107                         'last' => $this->msg( 'histfirst' )->escaped()
 108                 );
 109
 110                 $pagingLinks = $this->getPagingLinks( $linkTexts );
 111                 $limitLinks = $this->getLimitLinks();
 112                 $lang = $this->getLanguage();
 113                 $limits = $lang->pipeList( $limitLinks );
 114
 115                 $firstLast = $lang->pipeList( array( $pagingLinks['first'], $pagingLinks['last'] ) );
 116                 $firstLast = $this->msg( 'parentheses' )->rawParams( $firstLast )->escaped();
 117                 $prevNext = $this->msg( 'viewprevnext' )
 118                         ->rawParams(
 119                                 $pagingLinks['prev'],
 120                                 $pagingLinks['next'],
 121                                 $limits
 122                         )->escaped();
 123                 $separator = $this->msg( 'word-separator' )->escaped();
 124                 $this->mNavigationBar = $firstLast . $separator . $prevNext;
 125
 126                 return $this->mNavigationBar;
 127         }
 128
 129         function getNamespaceCond() {
 130                 if ( $this->namespace !== '' ) {
 131                         return array( 'ar_namespace' => (int)$this->namespace );
 132                 } else {
 133                         return array();
 134                 }
 135         }
 136
 137         /**
 138          * Generates each row in the contributions list.
 139          *
 140          * Contributions which are marked "top" are currently on top of the history.
 141          * For these contributions, a [rollback] link is shown for users with sysop
 142          * privileges. The rollback link restores the most recent version that was not
 143          * written by the target user.
 144          *
 145          * @todo This would probably look a lot nicer in a table.
 146          * @param $row
 147          * @return string
 148          */
 149         function formatRow( $row ) {
 150                 wfProfileIn( __METHOD__ );
 151
 152                 $page = Title::makeTitle( $row->ar_namespace, $row->ar_title );
 153
 154                 $rev = new Revision( array(
 155                         'title' => $page,
 156                         'id' => $row->ar_rev_id,
 157                         'comment' => $row->ar_comment,
 158                         'user' => $row->ar_user,
 159                         'user_text' => $row->ar_user_text,
 160                         'timestamp' => $row->ar_timestamp,
 161                         'minor_edit' => $row->ar_minor_edit,
 162                         'deleted' => $row->ar_deleted,
 163                 ) );
 164
 165                 $undelete = SpecialPage::getTitleFor( 'Undelete' );
 166
 167                 $logs = SpecialPage::getTitleFor( 'Log' );
 168                 $dellog = Linker::linkKnown(
 169                         $logs,
 170                         $this->messages['deletionlog'],
 171                         array(),
 172                         array(
 173                                 'type' => 'delete',
 174                                 'page' => $page->getPrefixedText()
 175                         )
 176                 );
 177
 178                 $reviewlink = Linker::linkKnown(
 179                         SpecialPage::getTitleFor( 'Undelete', $page->getPrefixedDBkey() ),
 180                         $this->messages['undeleteviewlink']
 181                 );
 182
 183                 $user = $this->getUser();
 184
 185                 if ( $user->isAllowed( 'deletedtext' ) ) {
 186                         $last = Linker::linkKnown(
 187                                 $undelete,
 188                                 $this->messages['diff'],
 189                                 array(),
 190                                 array(
 191                                         'target' => $page->getPrefixedText(),
 192                                         'timestamp' => $rev->getTimestamp(),
 193                                         'diff' => 'prev'
 194                                 )
 195                         );
 196                 } else {
 197                         $last = $this->messages['diff'];
 198                 }
 199
 200                 $comment = Linker::revComment( $rev );
 201                 $date = $this->getLanguage()->userTimeAndDate( $rev->getTimestamp(), $user );
 202                 $date = htmlspecialchars( $date );
 203
 204                 if ( !$user->isAllowed( 'undelete' ) || !$rev->userCan( Revision::DELETED_TEXT, $user ) ) {
 205                         $link = $date; // unusable link
 206                 } else {
 207                         $link = Linker::linkKnown(
 208                                 $undelete,
 209                                 $date,
 210                                 array( 'class' => 'mw-changeslist-date' ),
 211                                 array(
 212                                         'target' => $page->getPrefixedText(),
 213                                         'timestamp' => $rev->getTimestamp()
 214                                 )
 215                         );
 216                 }
 217                 // Style deleted items
 218                 if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 219                         $link = '<span class="history-deleted">' . $link . '</span>';
 220                 }
 221
 222                 $pagelink = Linker::link(
 223                         $page,
 224                         null,
 225                         array( 'class' => 'mw-changeslist-title' )
 226                 );
 227
 228                 if ( $rev->isMinor() ) {
 229                         $mflag = ChangesList::flag( 'minor' );
 230                 } else {
 231                         $mflag = '';
 232                 }
 233
 234                 // Revision delete link
 235                 $del = Linker::getRevDeleteLink( $user, $rev, $page );
 236                 if ( $del ) {
 237                         $del .= ' ';
 238                 }
 239
 240                 $tools = Html::rawElement(
 241                         'span',
 242                         array( 'class' => 'mw-deletedcontribs-tools' ),
 243                         $this->msg( 'parentheses' )->rawParams( $this->getLanguage()->pipeList(
 244                                 array( $last, $dellog, $reviewlink ) ) )->escaped()
 245                 );
 246
 247                 $separator = '<span class="mw-changeslist-separator">. .</span>';
 248                 $ret = "{$del}{$link} {$tools} {$separator} {$mflag} {$pagelink} {$comment}";
 249
 250                 # Denote if username is redacted for this edit
 251                 if ( $rev->isDeleted( Revision::DELETED_USER ) ) {
 252                         $ret .= " <strong>" . $this->msg( 'rev-deleted-user-contribs' )->escaped() . "</strong>";
 253                 }
 254
 255                 $ret = Html::rawElement( 'li', array(), $ret ) . "\n";
 256
 257                 wfProfileOut( __METHOD__ );
 258                 return $ret;
 259         }
 260
 261         /**
 262          * Get the Database object in use
 263          *
 264          * @return DatabaseBase
 265          */
 266         public function getDatabase() {
 267                 return $this->mDb;
 268         }
 269 }
 270
 271 class DeletedContributionsPage extends SpecialPage {
 272         function __construct() {
 273                 parent::__construct( 'DeletedContributions', 'deletedhistory',
 274                 /*listed*/true, /*function*/false, /*file*/false );
 275         }
 276
 277         /**
 278          * Special page "deleted user contributions".
 279          * Shows a list of the deleted contributions of a user.
 280          *
 281          * @param string $par (optional) user name of the user for which to show the contributions
 282          */
 283         function execute( $par ) {
 284                 global $wgQueryPageDefaultLimit;
 285
 286                 $this->setHeaders();
 287                 $this->outputHeader();
 288
 289                 $user = $this->getUser();
 290
 291                 if ( !$this->userCanExecute( $user ) ) {
 292                         $this->displayRestrictionError();
 293                         return;
 294                 }
 295
 296                 $request = $this->getRequest();
 297                 $out = $this->getOutput();
 298                 $out->setPageTitle( $this->msg( 'deletedcontributions-title' ) );
 299
 300                 $options = array();
 301
 302                 if ( $par !== null ) {
 303                         $target = $par;
 304                 } else {
 305                         $target = $request->getVal( 'target' );
 306                 }
 307
 308                 if ( !strlen( $target ) ) {
 309                         $out->addHTML( $this->getForm( '' ) );
 310                         return;
 311                 }
 312
 313                 $options['limit'] = $request->getInt( 'limit', $wgQueryPageDefaultLimit );
 314                 $options['target'] = $target;
 315
 316                 $userObj = User::newFromName( $target, false );
 317                 if ( !$userObj ) {
 318                         $out->addHTML( $this->getForm( '' ) );
 319                         return;
 320                 }
 321                 $this->getSkin()->setRelevantUser( $userObj );
 322
 323                 $target = $userObj->getName();
 324                 $out->addSubtitle( $this->getSubTitle( $userObj ) );
 325
 326                 if ( ( $ns = $request->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 327                         $options['namespace'] = intval( $ns );
 328                 } else {
 329                         $options['namespace'] = '';
 330                 }
 331
 332                 $out->addHTML( $this->getForm( $options ) );
 333
 334                 $pager = new DeletedContribsPager( $this->getContext(), $target, $options['namespace'] );
 335                 if ( !$pager->getNumRows() ) {
 336                         $out->addWikiMsg( 'nocontribs' );
 337                         return;
 338                 }
 339
 340                 # Show a message about slave lag, if applicable
 341                 $lag = wfGetLB()->safeGetLag( $pager->getDatabase() );
 342                 if ( $lag > 0 ) {
 343                         $out->showLagWarning( $lag );
 344                 }
 345
 346                 $out->addHTML(
 347                         '<p>' . $pager->getNavigationBar() . '</p>' .
 348                                 $pager->getBody() .
 349                                 '<p>' . $pager->getNavigationBar() . '</p>' );
 350
 351                 # If there were contributions, and it was a valid user or IP, show
 352                 # the appropriate "footer" message - WHOIS tools, etc.
 353                 if ( $target != 'newbies' ) {
 354                         $message = IP::isIPAddress( $target )
 355                                 ? 'sp-contributions-footer-anon'
 356                                 : 'sp-contributions-footer';
 357
 358                         if ( !$this->msg( $message )->isDisabled() ) {
 359                                 $out->wrapWikiMsg(
 360                                         "<div class='mw-contributions-footer'>\n$1\n</div>",
 361                                         array( $message, $target )
 362                                 );
 363                         }
 364                 }
 365         }
 366
 367         /**
 368          * Generates the subheading with links
 369          * @param $userObj User object for the target
 370          * @return String: appropriately-escaped HTML to be output literally
 371          * @todo FIXME: Almost the same as contributionsSub in SpecialContributions.php. Could be combined.
 372          */
 373         function getSubTitle( $userObj ) {
 374                 if ( $userObj->isAnon() ) {
 375                         $user = htmlspecialchars( $userObj->getName() );
 376                 } else {
 377                         $user = Linker::link( $userObj->getUserPage(), htmlspecialchars( $userObj->getName() ) );
 378                 }
 379                 $links = '';
 380                 $nt = $userObj->getUserPage();
 381                 $id = $userObj->getID();
 382                 $talk = $nt->getTalkPage();
 383                 if ( $talk ) {
 384                         # Talk page link
 385                         $tools[] = Linker::link( $talk, $this->msg( 'sp-contributions-talk' )->escaped() );
 386                         if ( ( $id !== null ) || ( $id === null && IP::isIPAddress( $nt->getText() ) ) ) {
 387                                 # Block / Change block / Unblock links
 388                                 if ( $this->getUser()->isAllowed( 'block' ) ) {
 389                                         if ( $userObj->isBlocked() ) {
 390                                                 $tools[] = Linker::linkKnown( # Change block link
 391                                                         SpecialPage::getTitleFor( 'Block', $nt->getDBkey() ),
 392                                                         $this->msg( 'change-blocklink' )->escaped()
 393                                                 );
 394                                                 $tools[] = Linker::linkKnown( # Unblock link
 395                                                         SpecialPage::getTitleFor( 'BlockList' ),
 396                                                         $this->msg( 'unblocklink' )->escaped(),
 397                                                         array(),
 398                                                         array(
 399                                                                 'action' => 'unblock',
 400                                                                 'ip' => $nt->getDBkey()
 401                                                         )
 402                                                 );
 403                                         } else {
 404                                                 # User is not blocked
 405                                                 $tools[] = Linker::linkKnown( # Block link
 406                                                         SpecialPage::getTitleFor( 'Block', $nt->getDBkey() ),
 407                                                         $this->msg( 'blocklink' )->escaped()
 408                                                 );
 409                                         }
 410                                 }
 411                                 # Block log link
 412                                 $tools[] = Linker::linkKnown(
 413                                         SpecialPage::getTitleFor( 'Log' ),
 414                                         $this->msg( 'sp-contributions-blocklog' )->escaped(),
 415                                         array(),
 416                                         array(
 417                                                 'type' => 'block',
 418                                                 'page' => $nt->getPrefixedText()
 419                                         )
 420                                 );
 421                         }
 422
 423                         # Uploads
 424                         $tools[] = Linker::linkKnown(
 425                                 SpecialPage::getTitleFor( 'Listfiles', $userObj->getName() ),
 426                                 $this->msg( 'sp-contributions-uploads' )->escaped()
 427                         );
 428
 429                         # Other logs link
 430                         $tools[] = Linker::linkKnown(
 431                                 SpecialPage::getTitleFor( 'Log' ),
 432                                 $this->msg( 'sp-contributions-logs' )->escaped(),
 433                                 array(),
 434                                 array( 'user' => $nt->getText() )
 435                         );
 436                         # Link to contributions
 437                         $tools[] = Linker::linkKnown(
 438                                 SpecialPage::getTitleFor( 'Contributions', $nt->getDBkey() ),
 439                                 $this->msg( 'sp-deletedcontributions-contribs' )->escaped()
 440                         );
 441
 442                         # Add a link to change user rights for privileged users
 443                         $userrightsPage = new UserrightsPage();
 444                         $userrightsPage->setContext( $this->getContext() );
 445                         if ( $userrightsPage->userCanChangeRights( $userObj ) ) {
 446                                 $tools[] = Linker::linkKnown(
 447                                         SpecialPage::getTitleFor( 'Userrights', $nt->getDBkey() ),
 448                                         $this->msg( 'sp-contributions-userrights' )->escaped()
 449                                 );
 450                         }
 451
 452                         wfRunHooks( 'ContributionsToolLinks', array( $id, $nt, &$tools ) );
 453
 454                         $links = $this->getLanguage()->pipeList( $tools );
 455
 456                         // Show a note if the user is blocked and display the last block log entry.
 457                         if ( $userObj->isBlocked() ) {
 458                                 // LogEventsList::showLogExtract() wants the first parameter by ref
 459                                 $out = $this->getOutput();
 460                                 LogEventsList::showLogExtract(
 461                                         $out,
 462                                         'block',
 463                                         $nt,
 464                                         '',
 465                                         array(
 466                                                 'lim' => 1,
 467                                                 'showIfEmpty' => false,
 468                                                 'msgKey' => array(
 469                                                         'sp-contributions-blocked-notice',
 470                                                         $nt->getText() # Support GENDER in 'sp-contributions-blocked-notice'
 471                                                 ),
 472                                                 'offset' => '' # don't use $this->getRequest() parameter offset
 473                                         )
 474                                 );
 475                         }
 476                 }
 477
 478                 // Old message 'contribsub' had one parameter, but that doesn't work for
 479                 // languages that want to put the "for" bit right after $user but before
 480                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 481                 // otherwise use 'contribsub2'.
 482                 $oldMsg = $this->msg( 'contribsub' );
 483                 if ( $oldMsg->exists() ) {
 484                         return $oldMsg->rawParams( "$user ($links)" );
 485                 }
 486
 487                 return $this->msg( 'contribsub2' )->rawParams( $user, $links );
 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 }