includes/specials/SpecialMovepage.php

   1 <?php
   2 /**
   3  * Implements Special:Movepage
   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  * A special page that allows users to change page titles
  26  *
  27  * @ingroup SpecialPage
  28  */
  29 class MovePageForm extends UnlistedSpecialPage {
  30
  31         /**
  32          * @var Title
  33          */
  34         var $oldTitle, $newTitle; # Objects
  35         var $reason; # Text input
  36         var $moveTalk, $deleteAndMove, $moveSubpages, $fixRedirects, $leaveRedirect, $moveOverShared; # Checks
  37
  38         private $watch = false;
  39
  40         public function __construct() {
  41                 parent::__construct( 'Movepage' );
  42         }
  43
  44         public function execute( $par ) {
  45                 # Check for database lock
  46                 if ( wfReadOnly() ) {
  47                         throw new ReadOnlyError;
  48                 }
  49
  50                 $this->setHeaders();
  51                 $this->outputHeader();
  52
  53                 $request = $this->getRequest();
  54                 $target = !is_null( $par ) ? $par : $request->getVal( 'target' );
  55
  56                 // Yes, the use of getVal() and getText() is wanted, see bug 20365
  57                 $oldTitleText = $request->getVal( 'wpOldTitle', $target );
  58                 $newTitleText = $request->getText( 'wpNewTitle' );
  59
  60                 $this->oldTitle = Title::newFromText( $oldTitleText );
  61                 $this->newTitle = Title::newFromText( $newTitleText );
  62
  63                 if( is_null( $this->oldTitle ) ) {
  64                         throw new ErrorPageError( 'notargettitle', 'notargettext' );
  65                 }
  66                 if( !$this->oldTitle->exists() ) {
  67                         throw new ErrorPageError( 'nopagetitle', 'nopagetext' );
  68                 }
  69
  70                 $user = $this->getUser();
  71
  72                 # Check rights
  73                 $permErrors = $this->oldTitle->getUserPermissionsErrors( 'move', $user );
  74                 if( !empty( $permErrors ) ) {
  75                         // Auto-block user's IP if the account was "hard" blocked
  76                         $user->spreadAnyEditBlock();
  77                         $this->getOutput()->showPermissionsErrorPage( $permErrors );
  78                         return;
  79                 }
  80
  81                 $def = !$request->wasPosted();
  82
  83                 $this->reason = $request->getText( 'wpReason' );
  84                 $this->moveTalk = $request->getBool( 'wpMovetalk', $def );
  85                 $this->fixRedirects = $request->getBool( 'wpFixRedirects', $def );
  86                 $this->leaveRedirect = $request->getBool( 'wpLeaveRedirect', $def );
  87                 $this->moveSubpages = $request->getBool( 'wpMovesubpages', false );
  88                 $this->deleteAndMove = $request->getBool( 'wpDeleteAndMove' ) && $request->getBool( 'wpConfirm' );
  89                 $this->moveOverShared = $request->getBool( 'wpMoveOverSharedFile', false );
  90                 $this->watch = $request->getCheck( 'wpWatch' ) && $user->isLoggedIn();
  91
  92                 if ( 'submit' == $request->getVal( 'action' ) && $request->wasPosted()
  93                         && $user->matchEditToken( $request->getVal( 'wpEditToken' ) ) ) {
  94                         $this->doSubmit();
  95                 } else {
  96                         $this->showForm( '' );
  97                 }
  98         }
  99
 100         /**
 101          * Show the form
 102          *
 103          * @param $err Mixed: error message. May either be a string message name or
 104          *    array message name and parameters, like the second argument to
 105          *    OutputPage::wrapWikiMsg().
 106          */
 107         function showForm( $err ) {
 108                 global $wgContLang, $wgFixDoubleRedirects, $wgMaximumMovedPages;
 109
 110                 $this->getSkin()->setRelevantTitle( $this->oldTitle );
 111
 112                 $oldTitleLink = Linker::link( $this->oldTitle );
 113
 114                 $out = $this->getOutput();
 115                 $out->setPagetitle( wfMsg( 'move-page', $this->oldTitle->getPrefixedText() ) );
 116                 $out->addModules( 'mediawiki.special.movePage' );
 117
 118                 $newTitle = $this->newTitle;
 119
 120                 if( !$newTitle ) {
 121                         # Show the current title as a default
 122                         # when the form is first opened.
 123                         $newTitle = $this->oldTitle;
 124                 }
 125                 else {
 126                         if( empty($err) ) {
 127                                 # If a title was supplied, probably from the move log revert
 128                                 # link, check for validity. We can then show some diagnostic
 129                                 # information and save a click.
 130                                 $newerr = $this->oldTitle->isValidMoveOperation( $newTitle );
 131                                 if( $newerr ) {
 132                                         $err = $newerr[0];
 133                                 }
 134                         }
 135                 }
 136
 137                 $user = $this->getUser();
 138
 139                 if ( !empty($err) && $err[0] == 'articleexists' && $user->isAllowed( 'delete' ) ) {
 140                         $out->addWikiMsg( 'delete_and_move_text', $newTitle->getPrefixedText() );
 141                         $movepagebtn = wfMsg( 'delete_and_move' );
 142                         $submitVar = 'wpDeleteAndMove';
 143                         $confirm = "
 144                                 <tr>
 145                                         <td></td>
 146                                         <td class='mw-input'>" .
 147                                                 Xml::checkLabel( wfMsg( 'delete_and_move_confirm' ), 'wpConfirm', 'wpConfirm' ) .
 148                                         "</td>
 149                                 </tr>";
 150                         $err = '';
 151                 } else {
 152                         if ($this->oldTitle->getNamespace() == NS_USER && !$this->oldTitle->isSubpage() ) {
 153                                 $out->wrapWikiMsg( "<div class=\"error mw-moveuserpage-warning\">\n$1\n</div>", 'moveuserpage-warning' );
 154                         }
 155                         $out->addWikiMsg( $wgFixDoubleRedirects ? 'movepagetext' :
 156                                 'movepagetext-noredirectfixer' );
 157                         $movepagebtn = wfMsg( 'movepagebtn' );
 158                         $submitVar = 'wpMove';
 159                         $confirm = false;
 160                 }
 161
 162                 if ( !empty($err) && $err[0] == 'file-exists-sharedrepo' && $user->isAllowed( 'reupload-shared' ) ) {
 163                         $out->addWikiMsg( 'move-over-sharedrepo', $newTitle->getPrefixedText() );
 164                         $submitVar = 'wpMoveOverSharedFile';
 165                         $err = '';
 166                 }
 167
 168                 $oldTalk = $this->oldTitle->getTalkPage();
 169                 $oldTitleSubpages = $this->oldTitle->hasSubpages();
 170                 $oldTitleTalkSubpages = $this->oldTitle->getTalkPage()->hasSubpages();
 171
 172                 $canMoveSubpage = ( $oldTitleSubpages || $oldTitleTalkSubpages ) &&
 173                         !count( $this->oldTitle->getUserPermissionsErrors( 'move-subpages', $user ) );
 174
 175                 # We also want to be able to move assoc. subpage talk-pages even if base page
 176                 # has no associated talk page, so || with $oldTitleTalkSubpages.
 177                 $considerTalk = !$this->oldTitle->isTalkPage() &&
 178                         ( $oldTalk->exists()
 179                                 || ( $oldTitleTalkSubpages && $canMoveSubpage ) );
 180
 181                 $dbr = wfGetDB( DB_SLAVE );
 182                 if ( $wgFixDoubleRedirects ) {
 183                         $hasRedirects = $dbr->selectField( 'redirect', '1',
 184                                 array(
 185                                         'rd_namespace' => $this->oldTitle->getNamespace(),
 186                                         'rd_title' => $this->oldTitle->getDBkey(),
 187                                 ) , __METHOD__ );
 188                 } else {
 189                         $hasRedirects = false;
 190                 }
 191
 192                 if ( $considerTalk ) {
 193                         $out->addWikiMsg( 'movepagetalktext' );
 194                 }
 195
 196                 $token = htmlspecialchars( $user->editToken() );
 197
 198                 if ( !empty($err) ) {
 199                         $out->setSubtitle( wfMsg( 'formerror' ) );
 200                         if( $err[0] == 'hookaborted' ) {
 201                                 $hookErr = $err[1];
 202                                 $errMsg = "<p><strong class=\"error\">$hookErr</strong></p>\n";
 203                                 $out->addHTML( $errMsg );
 204                         } else {
 205                                 $out->wrapWikiMsg( "<p><strong class=\"error\">\n$1\n</strong></p>", $err );
 206                         }
 207                 }
 208
 209                 if ( $this->oldTitle->isProtected( 'move' ) ) {
 210                         # Is the title semi-protected?
 211                         if ( $this->oldTitle->isSemiProtected( 'move' ) ) {
 212                                 $noticeMsg = 'semiprotectedpagemovewarning';
 213                                 $classes[] = 'mw-textarea-sprotected';
 214                         } else {
 215                                 # Then it must be protected based on static groups (regular)
 216                                 $noticeMsg = 'protectedpagemovewarning';
 217                                 $classes[] = 'mw-textarea-protected';
 218                         }
 219                         $out->addHTML( "<div class='mw-warning-with-logexcerpt'>\n" );
 220                         $out->addWikiMsg( $noticeMsg );
 221                         LogEventsList::showLogExtract( $out, 'protect', $this->oldTitle, '', array( 'lim' => 1 ) );
 222                         $out->addHTML( "</div>\n" );
 223                 }
 224
 225                 $out->addHTML(
 226                          Xml::openElement( 'form', array( 'method' => 'post', 'action' => $this->getTitle()->getLocalURL( 'action=submit' ), 'id' => 'movepage' ) ) .
 227                          Xml::openElement( 'fieldset' ) .
 228                          Xml::element( 'legend', null, wfMsg( 'move-page-legend' ) ) .
 229                          Xml::openElement( 'table', array( 'border' => '0', 'id' => 'mw-movepage-table' ) ) .
 230                          "<tr>
 231                                 <td class='mw-label'>" .
 232                                         wfMsgHtml( 'movearticle' ) .
 233                                 "</td>
 234                                 <td class='mw-input'>
 235                                         <strong>{$oldTitleLink}</strong>
 236                                 </td>
 237                         </tr>
 238                         <tr>
 239                                 <td class='mw-label'>" .
 240                                         Xml::label( wfMsg( 'newtitle' ), 'wpNewTitle' ) .
 241                                 "</td>
 242                                 <td class='mw-input'>" .
 243                                         Xml::input( 'wpNewTitle', 40, $wgContLang->recodeForEdit( $newTitle->getPrefixedText() ), array( 'type' => 'text', 'id' => 'wpNewTitle' ) ) .
 244                                         Html::hidden( 'wpOldTitle', $this->oldTitle->getPrefixedText() ) .
 245                                 "</td>
 246                         </tr>
 247                         <tr>
 248                                 <td class='mw-label'>" .
 249                                         Xml::label( wfMsg( 'movereason' ), 'wpReason' ) .
 250                                 "</td>
 251                                 <td class='mw-input'>" .
 252                                         Html::element( 'textarea', array( 'name' => 'wpReason', 'id' => 'wpReason', 'cols' => 60, 'rows' => 2,
 253                                         'maxlength' => 200 ), $this->reason ) . // maxlength byte limit is enforce in mediawiki.special.movePage.js
 254                                 "</td>
 255                         </tr>"
 256                 );
 257
 258                 if( $considerTalk ) {
 259                         $out->addHTML( "
 260                                 <tr>
 261                                         <td></td>
 262                                         <td class='mw-input'>" .
 263                                                 Xml::checkLabel( wfMsg( 'movetalk' ), 'wpMovetalk', 'wpMovetalk', $this->moveTalk ) .
 264                                         "</td>
 265                                 </tr>"
 266                         );
 267                 }
 268
 269                 if ( $user->isAllowed( 'suppressredirect' ) ) {
 270                         $out->addHTML( "
 271                                 <tr>
 272                                         <td></td>
 273                                         <td class='mw-input' >" .
 274                                                 Xml::checkLabel( wfMsg( 'move-leave-redirect' ), 'wpLeaveRedirect',
 275                                                         'wpLeaveRedirect', $this->leaveRedirect ) .
 276                                         "</td>
 277                                 </tr>"
 278                         );
 279                 }
 280
 281                 if ( $hasRedirects ) {
 282                         $out->addHTML( "
 283                                 <tr>
 284                                         <td></td>
 285                                         <td class='mw-input' >" .
 286                                                 Xml::checkLabel( wfMsg( 'fix-double-redirects' ), 'wpFixRedirects',
 287                                                         'wpFixRedirects', $this->fixRedirects ) .
 288                                         "</td>
 289                                 </tr>"
 290                         );
 291                 }
 292
 293                 if( $canMoveSubpage ) {
 294                         $out->addHTML( "
 295                                 <tr>
 296                                         <td></td>
 297                                         <td class=\"mw-input\">" .
 298                                 Xml::check(
 299                                         'wpMovesubpages',
 300                                         # Don't check the box if we only have talk subpages to
 301                                         # move and we aren't moving the talk page.
 302                                         $this->moveSubpages && ($this->oldTitle->hasSubpages() || $this->moveTalk),
 303                                         array( 'id' => 'wpMovesubpages' )
 304                                 ) . '&#160;' .
 305                                 Xml::tags( 'label', array( 'for' => 'wpMovesubpages' ),
 306                                         wfMsgExt(
 307                                                 ( $this->oldTitle->hasSubpages()
 308                                                         ? 'move-subpages'
 309                                                         : 'move-talk-subpages' ),
 310                                                 array( 'parseinline' ),
 311                                                 $this->getLang()->formatNum( $wgMaximumMovedPages ),
 312                                                 # $2 to allow use of PLURAL in message.
 313                                                 $wgMaximumMovedPages
 314                                         )
 315                                 ) .
 316                                         "</td>
 317                                 </tr>"
 318                         );
 319                 }
 320
 321                 $watchChecked = $user->isLoggedIn() && ($this->watch || $user->getBoolOption( 'watchmoves' )
 322                         || $this->oldTitle->userIsWatching());
 323                 # Don't allow watching if user is not logged in
 324                 if( $user->isLoggedIn() ) {
 325                         $out->addHTML( "
 326                         <tr>
 327                                 <td></td>
 328                                 <td class='mw-input'>" .
 329                                         Xml::checkLabel( wfMsg( 'move-watch' ), 'wpWatch', 'watch', $watchChecked ) .
 330                                 "</td>
 331                         </tr>");
 332                 }
 333
 334                 $out->addHTML( "
 335                                 {$confirm}
 336                         <tr>
 337                                 <td>&#160;</td>
 338                                 <td class='mw-submit'>" .
 339                                         Xml::submitButton( $movepagebtn, array( 'name' => $submitVar ) ) .
 340                                 "</td>
 341                         </tr>" .
 342                         Xml::closeElement( 'table' ) .
 343                         Html::hidden( 'wpEditToken', $token ) .
 344                         Xml::closeElement( 'fieldset' ) .
 345                         Xml::closeElement( 'form' ) .
 346                         "\n"
 347                 );
 348
 349                 $this->showLogFragment( $this->oldTitle );
 350                 $this->showSubpages( $this->oldTitle );
 351
 352         }
 353
 354         function doSubmit() {
 355                 global $wgMaximumMovedPages, $wgFixDoubleRedirects, $wgDeleteRevisionsLimit;
 356
 357                 $user = $this->getUser();
 358
 359                 if ( $user->pingLimiter( 'move' ) ) {
 360                         throw new ThrottledError;
 361                 }
 362
 363                 $ot = $this->oldTitle;
 364                 $nt = $this->newTitle;
 365
 366                 # Delete to make way if requested
 367                 if ( $user->isAllowed( 'delete' ) && $this->deleteAndMove ) {
 368                         $article = new Article( $nt );
 369
 370                         # Disallow deletions of big articles
 371                         $bigHistory = $article->isBigDeletion();
 372                         if( $bigHistory && count( $nt->getUserPermissionsErrors( 'bigdelete', $user ) ) ) {
 373                                 $this->showForm( array('delete-toobig', $this->getLang()->formatNum( $wgDeleteRevisionsLimit ) ) );
 374                                 return;
 375                         }
 376
 377                         // Delete an associated image if there is
 378                         $file = wfLocalFile( $nt );
 379                         if( $file->exists() ) {
 380                                 $file->delete( wfMsgForContent( 'delete_and_move_reason' ), false );
 381                         }
 382
 383                         // This may output an error message and exit
 384                         $article->doDelete( wfMsgForContent( 'delete_and_move_reason' ) );
 385                 }
 386
 387                 # don't allow moving to pages with # in
 388                 if ( !$nt || $nt->getFragment() != '' ) {
 389                         $this->showForm( 'badtitletext' );
 390                         return;
 391                 }
 392
 393                 # Show a warning if the target file exists on a shared repo
 394                 if ( $nt->getNamespace() == NS_FILE
 395                         && !( $this->moveOverShared && $user->isAllowed( 'reupload-shared' ) )
 396                         && !RepoGroup::singleton()->getLocalRepo()->findFile( $nt )
 397                         && wfFindFile( $nt ) )
 398                 {
 399                         $this->showForm( array('file-exists-sharedrepo') );
 400                         return;
 401
 402                 }
 403
 404                 if ( $user->isAllowed( 'suppressredirect' ) ) {
 405                         $createRedirect = $this->leaveRedirect;
 406                 } else {
 407                         $createRedirect = true;
 408                 }
 409
 410                 # Do the actual move.
 411                 $error = $ot->moveTo( $nt, true, $this->reason, $createRedirect );
 412                 if ( $error !== true ) {
 413                         # @todo FIXME: Show all the errors in a list, not just the first one
 414                         $this->showForm( reset( $error ) );
 415                         return;
 416                 }
 417
 418                 if ( $wgFixDoubleRedirects && $this->fixRedirects ) {
 419                         DoubleRedirectJob::fixRedirects( 'move', $ot, $nt );
 420                 }
 421
 422                 wfRunHooks( 'SpecialMovepageAfterMove', array( &$this, &$ot, &$nt ) );
 423
 424                 $out = $this->getOutput();
 425                 $out->setPagetitle( wfMsg( 'pagemovedsub' ) );
 426
 427                 $oldLink = Linker::link(
 428                         $ot,
 429                         null,
 430                         array(),
 431                         array( 'redirect' => 'no' )
 432                 );
 433                 $newLink = Linker::linkKnown( $nt );
 434                 $oldText = $ot->getPrefixedText();
 435                 $newText = $nt->getPrefixedText();
 436
 437                 $msgName = $createRedirect ? 'movepage-moved-redirect' : 'movepage-moved-noredirect';
 438                 $out->addHTML( wfMessage( 'movepage-moved' )->rawParams( $oldLink, $newLink, $oldText, $newText )->parseAsBlock() );
 439                 $out->addWikiMsg( $msgName );
 440
 441                 # Now we move extra pages we've been asked to move: subpages and talk
 442                 # pages.  First, if the old page or the new page is a talk page, we
 443                 # can't move any talk pages: cancel that.
 444                 if( $ot->isTalkPage() || $nt->isTalkPage() ) {
 445                         $this->moveTalk = false;
 446                 }
 447
 448                 if ( count( $ot->getUserPermissionsErrors( 'move-subpages', $user ) ) ) {
 449                         $this->moveSubpages = false;
 450                 }
 451
 452                 # Next make a list of id's.  This might be marginally less efficient
 453                 # than a more direct method, but this is not a highly performance-cri-
 454                 # tical code path and readable code is more important here.
 455                 #
 456                 # Note: this query works nicely on MySQL 5, but the optimizer in MySQL
 457                 # 4 might get confused.  If so, consider rewriting as a UNION.
 458                 #
 459                 # If the target namespace doesn't allow subpages, moving with subpages
 460                 # would mean that you couldn't move them back in one operation, which
 461                 # is bad.
 462                 # @todo FIXME: A specific error message should be given in this case.
 463
 464                 // @todo FIXME: Use Title::moveSubpages() here
 465                 $dbr = wfGetDB( DB_MASTER );
 466                 if( $this->moveSubpages && (
 467                         MWNamespace::hasSubpages( $nt->getNamespace() ) || (
 468                                 $this->moveTalk &&
 469                                 MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() )
 470                         )
 471                 ) ) {
 472                         $conds = array(
 473                                 'page_title' . $dbr->buildLike( $ot->getDBkey() . '/', $dbr->anyString() )
 474                                         .' OR page_title = ' . $dbr->addQuotes( $ot->getDBkey() )
 475                         );
 476                         $conds['page_namespace'] = array();
 477                         if( MWNamespace::hasSubpages( $nt->getNamespace() ) ) {
 478                                 $conds['page_namespace'] []= $ot->getNamespace();
 479                         }
 480                         if( $this->moveTalk && MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() ) ) {
 481                                 $conds['page_namespace'] []= $ot->getTalkPage()->getNamespace();
 482                         }
 483                 } elseif( $this->moveTalk ) {
 484                         $conds = array(
 485                                 'page_namespace' => $ot->getTalkPage()->getNamespace(),
 486                                 'page_title' => $ot->getDBkey()
 487                         );
 488                 } else {
 489                         # Skip the query
 490                         $conds = null;
 491                 }
 492
 493                 $extraPages = array();
 494                 if( !is_null( $conds ) ) {
 495                         $extraPages = TitleArray::newFromResult(
 496                                 $dbr->select( 'page',
 497                                         array( 'page_id', 'page_namespace', 'page_title' ),
 498                                         $conds,
 499                                         __METHOD__
 500                                 )
 501                         );
 502                 }
 503
 504                 $extraOutput = array();
 505                 $count = 1;
 506                 foreach( $extraPages as $oldSubpage ) {
 507                         if( $ot->equals( $oldSubpage ) ) {
 508                                 # Already did this one.
 509                                 continue;
 510                         }
 511
 512                         $newPageName = preg_replace(
 513                                 '#^'.preg_quote( $ot->getDBkey(), '#' ).'#',
 514                                 StringUtils::escapeRegexReplacement( $nt->getDBkey() ), # bug 21234
 515                                 $oldSubpage->getDBkey()
 516                         );
 517                         if( $oldSubpage->isTalkPage() ) {
 518                                 $newNs = $nt->getTalkPage()->getNamespace();
 519                         } else {
 520                                 $newNs = $nt->getSubjectPage()->getNamespace();
 521                         }
 522                         # Bug 14385: we need makeTitleSafe because the new page names may
 523                         # be longer than 255 characters.
 524                         $newSubpage = Title::makeTitleSafe( $newNs, $newPageName );
 525                         if( !$newSubpage ) {
 526                                 $oldLink = Linker::linkKnown( $oldSubpage );
 527                                 $extraOutput []= wfMsgHtml( 'movepage-page-unmoved', $oldLink,
 528                                         htmlspecialchars(Title::makeName( $newNs, $newPageName )));
 529                                 continue;
 530                         }
 531
 532                         # This was copy-pasted from Renameuser, bleh.
 533                         if ( $newSubpage->exists() && !$oldSubpage->isValidMoveTarget( $newSubpage ) ) {
 534                                 $link = Linker::linkKnown( $newSubpage );
 535                                 $extraOutput []= wfMsgHtml( 'movepage-page-exists', $link );
 536                         } else {
 537                                 $success = $oldSubpage->moveTo( $newSubpage, true, $this->reason, $createRedirect );
 538                                 if( $success === true ) {
 539                                         if ( $this->fixRedirects ) {
 540                                                 DoubleRedirectJob::fixRedirects( 'move', $oldSubpage, $newSubpage );
 541                                         }
 542                                         $oldLink = Linker::link(
 543                                                 $oldSubpage,
 544                                                 null,
 545                                                 array(),
 546                                                 array( 'redirect' => 'no' )
 547                                         );
 548                                         $newLink = Linker::linkKnown( $newSubpage );
 549                                         $extraOutput []= wfMsgHtml( 'movepage-page-moved', $oldLink, $newLink );
 550                                         ++$count;
 551                                         if( $count >= $wgMaximumMovedPages ) {
 552                                                 $extraOutput []= wfMsgExt( 'movepage-max-pages', array( 'parsemag', 'escape' ), $this->getLang()->formatNum( $wgMaximumMovedPages ) );
 553                                                 break;
 554                                         }
 555                                 } else {
 556                                         $oldLink = Linker::linkKnown( $oldSubpage );
 557                                         $newLink = Linker::link( $newSubpage );
 558                                         $extraOutput []= wfMsgHtml( 'movepage-page-unmoved', $oldLink, $newLink );
 559                                 }
 560                         }
 561
 562                 }
 563
 564                 if( $extraOutput !== array() ) {
 565                         $out->addHTML( "<ul>\n<li>" . implode( "</li>\n<li>", $extraOutput ) . "</li>\n</ul>" );
 566                 }
 567
 568                 # Deal with watches (we don't watch subpages)
 569                 if( $this->watch && $user->isLoggedIn() ) {
 570                         $user->addWatch( $ot );
 571                         $user->addWatch( $nt );
 572                 } else {
 573                         $user->removeWatch( $ot );
 574                         $user->removeWatch( $nt );
 575                 }
 576
 577                 # Re-clear the file redirect cache, which may have been polluted by
 578                 # parsing in messages above. See CR r56745.
 579                 # @todo FIXME: Needs a more robust solution inside FileRepo.
 580                 if( $ot->getNamespace() == NS_FILE ) {
 581                         RepoGroup::singleton()->getLocalRepo()->invalidateImageRedirect( $ot );
 582                 }
 583         }
 584
 585         function showLogFragment( $title ) {
 586                 $out = $this->getOutput();
 587                 $out->addHTML( Xml::element( 'h2', null, LogPage::logName( 'move' ) ) );
 588                 LogEventsList::showLogExtract( $out, 'move', $title );
 589         }
 590
 591         function showSubpages( $title ) {
 592                 if( !MWNamespace::hasSubpages( $title->getNamespace() ) )
 593                         return;
 594
 595                 $subpages = $title->getSubpages();
 596                 $count = $subpages instanceof TitleArray ? $subpages->count() : 0;
 597
 598                 $out = $this->getOutput();
 599                 $out->wrapWikiMsg( '== $1 ==', array( 'movesubpage', $count ) );
 600
 601                 # No subpages.
 602                 if ( $count == 0 ) {
 603                         $out->addWikiMsg( 'movenosubpage' );
 604                         return;
 605                 }
 606
 607                 $out->addWikiMsg( 'movesubpagetext', $this->getLang()->formatNum( $count ) );
 608                 $out->addHTML( "<ul>\n" );
 609
 610                 foreach( $subpages as $subpage ) {
 611                         $link = Linker::link( $subpage );
 612                         $out->addHTML( "<li>$link</li>\n" );
 613                 }
 614                 $out->addHTML( "</ul>\n" );
 615         }
 616 }
 617