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