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                 $this->checkReadOnly();
  46
  47                 $this->setHeaders();
  48                 $this->outputHeader();
  49
  50                 $request = $this->getRequest();
  51                 $target = !is_null( $par ) ? $par : $request->getVal( 'target' );
  52
  53                 // Yes, the use of getVal() and getText() is wanted, see bug 20365
  54
  55                 $oldTitleText = $request->getVal( 'wpOldTitle', $target );
  56                 $this->oldTitle = Title::newFromText( $oldTitleText );
  57
  58                 if( is_null( $this->oldTitle ) ) {
  59                         throw new ErrorPageError( 'notargettitle', 'notargettext' );
  60                 }
  61                 if( !$this->oldTitle->exists() ) {
  62                         throw new ErrorPageError( 'nopagetitle', 'nopagetext' );
  63                 }
  64
  65                 $newTitleTextMain = $request->getText( 'wpNewTitleMain' );
  66                 $newTitleTextNs = $request->getInt( 'wpNewTitleNs', $this->oldTitle->getNamespace() );
  67                 // Backwards compatibility for forms submitting here from other sources
  68                 // which is more common than it should be..
  69                 $newTitleText_bc = $request->getText( 'wpNewTitle' );
  70                 $this->newTitle = strlen( $newTitleText_bc ) > 0
  71                         ? Title::newFromText( $newTitleText_bc )
  72                         : Title::makeTitleSafe( $newTitleTextNs, $newTitleTextMain );
  73
  74
  75                 $user = $this->getUser();
  76
  77                 # Check rights
  78                 $permErrors = $this->oldTitle->getUserPermissionsErrors( 'move', $user );
  79                 if ( count( $permErrors ) ) {
  80                         // Auto-block user's IP if the account was "hard" blocked
  81                         $user->spreadAnyEditBlock();
  82                         throw new PermissionsError( 'move', $permErrors );
  83                 }
  84
  85                 $def = !$request->wasPosted();
  86
  87                 $this->reason = $request->getText( 'wpReason' );
  88                 $this->moveTalk = $request->getBool( 'wpMovetalk', $def );
  89                 $this->fixRedirects = $request->getBool( 'wpFixRedirects', $def );
  90                 $this->leaveRedirect = $request->getBool( 'wpLeaveRedirect', $def );
  91                 $this->moveSubpages = $request->getBool( 'wpMovesubpages', false );
  92                 $this->deleteAndMove = $request->getBool( 'wpDeleteAndMove' ) && $request->getBool( 'wpConfirm' );
  93                 $this->moveOverShared = $request->getBool( 'wpMoveOverSharedFile', false );
  94                 $this->watch = $request->getCheck( 'wpWatch' ) && $user->isLoggedIn();
  95
  96                 if ( 'submit' == $request->getVal( 'action' ) && $request->wasPosted()
  97                         && $user->matchEditToken( $request->getVal( 'wpEditToken' ) ) ) {
  98                         $this->doSubmit();
  99                 } else {
 100                         $this->showForm( array() );
 101                 }
 102         }
 103
 104         /**
 105          * Show the form
 106          *
 107          * @param $err Array: error messages. Each item is an error message.
 108          *    It may either be a string message name or array message name and
 109          *    parameters, like the second argument to OutputPage::wrapWikiMsg().
 110          */
 111         function showForm( $err ) {
 112                 global $wgContLang, $wgFixDoubleRedirects, $wgMaximumMovedPages;
 113
 114                 $this->getSkin()->setRelevantTitle( $this->oldTitle );
 115
 116                 $oldTitleLink = Linker::link( $this->oldTitle );
 117
 118                 $out = $this->getOutput();
 119                 $out->setPageTitle( $this->msg( 'move-page', $this->oldTitle->getPrefixedText() ) );
 120                 $out->addModules( 'mediawiki.special.movePage' );
 121
 122                 $newTitle = $this->newTitle;
 123
 124                 if ( !$newTitle ) {
 125                         # Show the current title as a default
 126                         # when the form is first opened.
 127                         $newTitle = $this->oldTitle;
 128                 } elseif ( !count( $err ) ) {
 129                         # If a title was supplied, probably from the move log revert
 130                         # link, check for validity. We can then show some diagnostic
 131                         # information and save a click.
 132                         $newerr = $this->oldTitle->isValidMoveOperation( $newTitle );
 133                         if( is_array( $newerr ) ) {
 134                                 $err = $newerr;
 135                         }
 136                 }
 137
 138                 $user = $this->getUser();
 139
 140                 if ( count( $err ) == 1 && isset( $err[0][0] ) && $err[0][0] == 'articleexists'
 141                         && $newTitle->quickUserCan( 'delete', $user )
 142                 ) {
 143                         $out->addWikiMsg( 'delete_and_move_text', $newTitle->getPrefixedText() );
 144                         $movepagebtn = $this->msg( 'delete_and_move' )->text();
 145                         $submitVar = 'wpDeleteAndMove';
 146                         $confirm = "
 147                                 <tr>
 148                                         <td></td>
 149                                         <td class='mw-input'>" .
 150                                                 Xml::checkLabel( $this->msg( 'delete_and_move_confirm' )->text(), 'wpConfirm', 'wpConfirm' ) .
 151                                         "</td>
 152                                 </tr>";
 153                         $err = array();
 154                 } else {
 155                         if ($this->oldTitle->getNamespace() == NS_USER && !$this->oldTitle->isSubpage() ) {
 156                                 $out->wrapWikiMsg( "<div class=\"error mw-moveuserpage-warning\">\n$1\n</div>", 'moveuserpage-warning' );
 157                         }
 158                         $out->addWikiMsg( $wgFixDoubleRedirects ? 'movepagetext' :
 159                                 'movepagetext-noredirectfixer' );
 160                         $movepagebtn = $this->msg( 'movepagebtn' )->text();
 161                         $submitVar = 'wpMove';
 162                         $confirm = false;
 163                 }
 164
 165                 if ( count( $err ) == 1 && isset( $err[0][0] ) && $err[0][0] == 'file-exists-sharedrepo'
 166                         && $user->isAllowed( 'reupload-shared' )
 167                 ) {
 168                         $out->addWikiMsg( 'move-over-sharedrepo', $newTitle->getPrefixedText() );
 169                         $submitVar = 'wpMoveOverSharedFile';
 170                         $err = array();
 171                 }
 172
 173                 $oldTalk = $this->oldTitle->getTalkPage();
 174                 $oldTitleSubpages = $this->oldTitle->hasSubpages();
 175                 $oldTitleTalkSubpages = $this->oldTitle->getTalkPage()->hasSubpages();
 176
 177                 $canMoveSubpage = ( $oldTitleSubpages || $oldTitleTalkSubpages ) &&
 178                         !count( $this->oldTitle->getUserPermissionsErrors( 'move-subpages', $user ) );
 179
 180                 # We also want to be able to move assoc. subpage talk-pages even if base page
 181                 # has no associated talk page, so || with $oldTitleTalkSubpages.
 182                 $considerTalk = !$this->oldTitle->isTalkPage() &&
 183                         ( $oldTalk->exists()
 184                                 || ( $oldTitleTalkSubpages && $canMoveSubpage ) );
 185
 186                 $dbr = wfGetDB( DB_SLAVE );
 187                 if ( $wgFixDoubleRedirects ) {
 188                         $hasRedirects = $dbr->selectField( 'redirect', '1',
 189                                 array(
 190                                         'rd_namespace' => $this->oldTitle->getNamespace(),
 191                                         'rd_title' => $this->oldTitle->getDBkey(),
 192                                 ) , __METHOD__ );
 193                 } else {
 194                         $hasRedirects = false;
 195                 }
 196
 197                 if ( $considerTalk ) {
 198                         $out->addWikiMsg( 'movepagetalktext' );
 199                 }
 200
 201                 if ( count( $err ) ) {
 202                         $out->addHTML( "<div class='error'>\n" );
 203                         $action_desc = $this->msg( 'action-move' )->plain();
 204                         $out->addWikiMsg( 'permissionserrorstext-withaction', count( $err ), $action_desc );
 205
 206                         if ( count( $err ) == 1 ) {
 207                                 $errMsg = $err[0];
 208                                 $errMsgName = array_shift( $errMsg );
 209                                 if ( $errMsgName == 'hookaborted' ) {
 210                                         $out->addHTML( "<p>{$errMsg[0]}</p>\n" );
 211                                 } else {
 212                                         $out->addWikiMsgArray( $errMsgName, $errMsg );
 213                                 }
 214                         } else {
 215                                 $errStr = array();
 216                                 foreach( $err as $errMsg ) {
 217                                         if( $errMsg[0] == 'hookaborted' ) {
 218                                                 $errStr[] = $errMsg[1];
 219                                         } else {
 220                                                 $errMsgName = array_shift( $errMsg );
 221                                                 $errStr[] = $this->msg( $errMsgName, $errMsg )->parse();
 222                                         }
 223                                 }
 224
 225                                 $out->addHTML( '<ul><li>' . implode( "</li>\n<li>", $errStr ) . "</li></ul>\n" );
 226                         }
 227                         $out->addHTML( "</div>\n" );
 228                 }
 229
 230                 if ( $this->oldTitle->isProtected( 'move' ) ) {
 231                         # Is the title semi-protected?
 232                         if ( $this->oldTitle->isSemiProtected( 'move' ) ) {
 233                                 $noticeMsg = 'semiprotectedpagemovewarning';
 234                                 $classes[] = 'mw-textarea-sprotected';
 235                         } else {
 236                                 # Then it must be protected based on static groups (regular)
 237                                 $noticeMsg = 'protectedpagemovewarning';
 238                                 $classes[] = 'mw-textarea-protected';
 239                         }
 240                         $out->addHTML( "<div class='mw-warning-with-logexcerpt'>\n" );
 241                         $out->addWikiMsg( $noticeMsg );
 242                         LogEventsList::showLogExtract( $out, 'protect', $this->oldTitle, '', array( 'lim' => 1 ) );
 243                         $out->addHTML( "</div>\n" );
 244                 }
 245
 246                 // Byte limit (not string length limit) for wpReason and wpNewTitleMain
 247                 // is enforced in the mediawiki.special.movePage module
 248
 249                 $immovableNamespaces = array();
 250
 251                 foreach ( array_keys( $this->getLanguage()->getNamespaces() ) as $nsId ) {
 252                         if ( !MWNamespace::isMovable( $nsId ) ) {
 253                                 $immovableNamespaces[] = $nsId;
 254                         }
 255                 }
 256
 257                 $out->addHTML(
 258                          Xml::openElement( 'form', array( 'method' => 'post', 'action' => $this->getTitle()->getLocalURL( 'action=submit' ), 'id' => 'movepage' ) ) .
 259                          Xml::openElement( 'fieldset' ) .
 260                          Xml::element( 'legend', null, $this->msg( 'move-page-legend' )->text() ) .
 261                          Xml::openElement( 'table', array( 'border' => '0', 'id' => 'mw-movepage-table' ) ) .
 262                          "<tr>
 263                                 <td class='mw-label'>" .
 264                                         $this->msg( 'movearticle' )->escaped() .
 265                                 "</td>
 266                                 <td class='mw-input'>
 267                                         <strong>{$oldTitleLink}</strong>
 268                                 </td>
 269                         </tr>
 270                         <tr>
 271                                 <td class='mw-label'>" .
 272                                         Xml::label( $this->msg( 'newtitle' )->text(), 'wpNewTitleMain' ) .
 273                                 "</td>
 274                                 <td class='mw-input'>" .
 275                                         Html::namespaceSelector(
 276                                                 array(
 277                                                         'selected' => $newTitle->getNamespace(),
 278                                                         'exclude' => $immovableNamespaces
 279                                                 ),
 280                                                 array( 'name' => 'wpNewTitleNs', 'id' => 'wpNewTitleNs' )
 281                                         ) .
 282                                         Xml::input( 'wpNewTitleMain', 60, $wgContLang->recodeForEdit( $newTitle->getText() ), array(
 283                                                 'type' => 'text',
 284                                                 'id' => 'wpNewTitleMain',
 285                                                 'maxlength' => 255,
 286                                         ) ) .
 287                                         Html::hidden( 'wpOldTitle', $this->oldTitle->getPrefixedText() ) .
 288                                 "</td>
 289                         </tr>
 290                         <tr>
 291                                 <td class='mw-label'>" .
 292                                         Xml::label( $this->msg( 'movereason' )->text(), 'wpReason' ) .
 293                                 "</td>
 294                                 <td class='mw-input'>" .
 295                                         Html::element( 'textarea', array( 'name' => 'wpReason', 'id' => 'wpReason', 'cols' => 60, 'rows' => 2,
 296                                         'maxlength' => 200 ), $this->reason ) .
 297                                 "</td>
 298                         </tr>"
 299                 );
 300
 301                 if( $considerTalk ) {
 302                         $out->addHTML( "
 303                                 <tr>
 304                                         <td></td>
 305                                         <td class='mw-input'>" .
 306                                                 Xml::checkLabel( $this->msg( 'movetalk' )->text(), 'wpMovetalk', 'wpMovetalk', $this->moveTalk ) .
 307                                         "</td>
 308                                 </tr>"
 309                         );
 310                 }
 311
 312                 if ( $user->isAllowed( 'suppressredirect' ) ) {
 313                         $out->addHTML( "
 314                                 <tr>
 315                                         <td></td>
 316                                         <td class='mw-input' >" .
 317                                                 Xml::checkLabel( $this->msg( 'move-leave-redirect' )->text(), 'wpLeaveRedirect',
 318                                                         'wpLeaveRedirect', $this->leaveRedirect ) .
 319                                         "</td>
 320                                 </tr>"
 321                         );
 322                 }
 323
 324                 if ( $hasRedirects ) {
 325                         $out->addHTML( "
 326                                 <tr>
 327                                         <td></td>
 328                                         <td class='mw-input' >" .
 329                                                 Xml::checkLabel( $this->msg( 'fix-double-redirects' )->text(), 'wpFixRedirects',
 330                                                         'wpFixRedirects', $this->fixRedirects ) .
 331                                         "</td>
 332                                 </tr>"
 333                         );
 334                 }
 335
 336                 if( $canMoveSubpage ) {
 337                         $out->addHTML( "
 338                                 <tr>
 339                                         <td></td>
 340                                         <td class=\"mw-input\">" .
 341                                 Xml::check(
 342                                         'wpMovesubpages',
 343                                         # Don't check the box if we only have talk subpages to
 344                                         # move and we aren't moving the talk page.
 345                                         $this->moveSubpages && ($this->oldTitle->hasSubpages() || $this->moveTalk),
 346                                         array( 'id' => 'wpMovesubpages' )
 347                                 ) . '&#160;' .
 348                                 Xml::tags( 'label', array( 'for' => 'wpMovesubpages' ),
 349                                         $this->msg(
 350                                                 ( $this->oldTitle->hasSubpages()
 351                                                         ? 'move-subpages'
 352                                                         : 'move-talk-subpages' )
 353                                                 )->numParams( $wgMaximumMovedPages )->params( $wgMaximumMovedPages )->parse()
 354                                 ) .
 355                                         "</td>
 356                                 </tr>"
 357                         );
 358                 }
 359
 360                 $watchChecked = $user->isLoggedIn() && ($this->watch || $user->getBoolOption( 'watchmoves' )
 361                         || $user->isWatched( $this->oldTitle ) );
 362                 # Don't allow watching if user is not logged in
 363                 if( $user->isLoggedIn() ) {
 364                         $out->addHTML( "
 365                         <tr>
 366                                 <td></td>
 367                                 <td class='mw-input'>" .
 368                                         Xml::checkLabel( $this->msg( 'move-watch' )->text(), 'wpWatch', 'watch', $watchChecked ) .
 369                                 "</td>
 370                         </tr>");
 371                 }
 372
 373                 $out->addHTML( "
 374                                 {$confirm}
 375                         <tr>
 376                                 <td>&#160;</td>
 377                                 <td class='mw-submit'>" .
 378                                         Xml::submitButton( $movepagebtn, array( 'name' => $submitVar ) ) .
 379                                 "</td>
 380                         </tr>" .
 381                         Xml::closeElement( 'table' ) .
 382                         Html::hidden( 'wpEditToken', $user->getEditToken() ) .
 383                         Xml::closeElement( 'fieldset' ) .
 384                         Xml::closeElement( 'form' ) .
 385                         "\n"
 386                 );
 387
 388                 $this->showLogFragment( $this->oldTitle );
 389                 $this->showSubpages( $this->oldTitle );
 390
 391         }
 392
 393         function doSubmit() {
 394                 global $wgMaximumMovedPages, $wgFixDoubleRedirects;
 395
 396                 $user = $this->getUser();
 397
 398                 if ( $user->pingLimiter( 'move' ) ) {
 399                         throw new ThrottledError;
 400                 }
 401
 402                 $ot = $this->oldTitle;
 403                 $nt = $this->newTitle;
 404
 405                 # don't allow moving to pages with # in
 406                 if ( !$nt || $nt->getFragment() != '' ) {
 407                         $this->showForm( array( array( 'badtitletext' ) ) );
 408                         return;
 409                 }
 410
 411                 # Show a warning if the target file exists on a shared repo
 412                 if ( $nt->getNamespace() == NS_FILE
 413                         && !( $this->moveOverShared && $user->isAllowed( 'reupload-shared' ) )
 414                         && !RepoGroup::singleton()->getLocalRepo()->findFile( $nt )
 415                         && wfFindFile( $nt ) )
 416                 {
 417                         $this->showForm( array( array( 'file-exists-sharedrepo' ) ) );
 418                         return;
 419
 420                 }
 421
 422                 # Delete to make way if requested
 423                 if ( $this->deleteAndMove ) {
 424                         $permErrors = $nt->getUserPermissionsErrors( 'delete', $user );
 425                         if ( count( $permErrors ) ) {
 426                                 # Only show the first error
 427                                 $this->showForm( $permErrors );
 428                                 return;
 429                         }
 430
 431                         $reason = $this->msg( 'delete_and_move_reason', $ot )->inContentLanguage()->text();
 432
 433                         // Delete an associated image if there is
 434                         if ( $nt->getNamespace() == NS_FILE ) {
 435                                 $file = wfLocalFile( $nt );
 436                                 if ( $file->exists() ) {
 437                                         $file->delete( $reason, false );
 438                                 }
 439                         }
 440
 441                         $error = ''; // passed by ref
 442                         $page = WikiPage::factory( $nt );
 443                         $deleteStatus = $page->doDeleteArticleReal( $reason, false, 0, true, $error, $user );
 444                         if ( !$deleteStatus->isGood() ) {
 445                                 $this->showForm( $deleteStatus->getErrorsArray() );
 446                                 return;
 447                         }
 448                 }
 449
 450                 if ( $user->isAllowed( 'suppressredirect' ) ) {
 451                         $createRedirect = $this->leaveRedirect;
 452                 } else {
 453                         $createRedirect = true;
 454                 }
 455
 456                 # Do the actual move.
 457                 $error = $ot->moveTo( $nt, true, $this->reason, $createRedirect );
 458                 if ( $error !== true ) {
 459                         $this->showForm( $error );
 460                         return;
 461                 }
 462
 463                 if ( $wgFixDoubleRedirects && $this->fixRedirects ) {
 464                         DoubleRedirectJob::fixRedirects( 'move', $ot, $nt );
 465                 }
 466
 467                 wfRunHooks( 'SpecialMovepageAfterMove', array( &$this, &$ot, &$nt ) );
 468
 469                 $out = $this->getOutput();
 470                 $out->setPageTitle( $this->msg( 'pagemovedsub' ) );
 471
 472                 $oldLink = Linker::link(
 473                         $ot,
 474                         null,
 475                         array(),
 476                         array( 'redirect' => 'no' )
 477                 );
 478                 $newLink = Linker::linkKnown( $nt );
 479                 $oldText = $ot->getPrefixedText();
 480                 $newText = $nt->getPrefixedText();
 481
 482                 $msgName = $createRedirect ? 'movepage-moved-redirect' : 'movepage-moved-noredirect';
 483                 $out->addHTML( $this->msg( 'movepage-moved' )->rawParams( $oldLink,
 484                         $newLink )->params( $oldText, $newText )->parseAsBlock() );
 485                 $out->addWikiMsg( $msgName );
 486
 487                 # Now we move extra pages we've been asked to move: subpages and talk
 488                 # pages.  First, if the old page or the new page is a talk page, we
 489                 # can't move any talk pages: cancel that.
 490                 if( $ot->isTalkPage() || $nt->isTalkPage() ) {
 491                         $this->moveTalk = false;
 492                 }
 493
 494                 if ( count( $ot->getUserPermissionsErrors( 'move-subpages', $user ) ) ) {
 495                         $this->moveSubpages = false;
 496                 }
 497
 498                 # Next make a list of id's.  This might be marginally less efficient
 499                 # than a more direct method, but this is not a highly performance-cri-
 500                 # tical code path and readable code is more important here.
 501                 #
 502                 # Note: this query works nicely on MySQL 5, but the optimizer in MySQL
 503                 # 4 might get confused.  If so, consider rewriting as a UNION.
 504                 #
 505                 # If the target namespace doesn't allow subpages, moving with subpages
 506                 # would mean that you couldn't move them back in one operation, which
 507                 # is bad.
 508                 # @todo FIXME: A specific error message should be given in this case.
 509
 510                 // @todo FIXME: Use Title::moveSubpages() here
 511                 $dbr = wfGetDB( DB_MASTER );
 512                 if( $this->moveSubpages && (
 513                         MWNamespace::hasSubpages( $nt->getNamespace() ) || (
 514                                 $this->moveTalk &&
 515                                 MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() )
 516                         )
 517                 ) ) {
 518                         $conds = array(
 519                                 'page_title' . $dbr->buildLike( $ot->getDBkey() . '/', $dbr->anyString() )
 520                                         .' OR page_title = ' . $dbr->addQuotes( $ot->getDBkey() )
 521                         );
 522                         $conds['page_namespace'] = array();
 523                         if( MWNamespace::hasSubpages( $nt->getNamespace() ) ) {
 524                                 $conds['page_namespace'] []= $ot->getNamespace();
 525                         }
 526                         if( $this->moveTalk && MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() ) ) {
 527                                 $conds['page_namespace'] []= $ot->getTalkPage()->getNamespace();
 528                         }
 529                 } elseif( $this->moveTalk ) {
 530                         $conds = array(
 531                                 'page_namespace' => $ot->getTalkPage()->getNamespace(),
 532                                 'page_title' => $ot->getDBkey()
 533                         );
 534                 } else {
 535                         # Skip the query
 536                         $conds = null;
 537                 }
 538
 539                 $extraPages = array();
 540                 if( !is_null( $conds ) ) {
 541                         $extraPages = TitleArray::newFromResult(
 542                                 $dbr->select( 'page',
 543                                         array( 'page_id', 'page_namespace', 'page_title' ),
 544                                         $conds,
 545                                         __METHOD__
 546                                 )
 547                         );
 548                 }
 549
 550                 $extraOutput = array();
 551                 $count = 1;
 552                 foreach( $extraPages as $oldSubpage ) {
 553                         if( $ot->equals( $oldSubpage ) ) {
 554                                 # Already did this one.
 555                                 continue;
 556                         }
 557
 558                         $newPageName = preg_replace(
 559                                 '#^'.preg_quote( $ot->getDBkey(), '#' ).'#',
 560                                 StringUtils::escapeRegexReplacement( $nt->getDBkey() ), # bug 21234
 561                                 $oldSubpage->getDBkey()
 562                         );
 563                         if( $oldSubpage->isTalkPage() ) {
 564                                 $newNs = $nt->getTalkPage()->getNamespace();
 565                         } else {
 566                                 $newNs = $nt->getSubjectPage()->getNamespace();
 567                         }
 568                         # Bug 14385: we need makeTitleSafe because the new page names may
 569                         # be longer than 255 characters.
 570                         $newSubpage = Title::makeTitleSafe( $newNs, $newPageName );
 571                         if( !$newSubpage ) {
 572                                 $oldLink = Linker::linkKnown( $oldSubpage );
 573                                 $extraOutput []= $this->msg( 'movepage-page-unmoved' )->rawParams( $oldLink
 574                                         )->params( Title::makeName( $newNs, $newPageName ) )->escaped();
 575                                 continue;
 576                         }
 577
 578                         # This was copy-pasted from Renameuser, bleh.
 579                         if ( $newSubpage->exists() && !$oldSubpage->isValidMoveTarget( $newSubpage ) ) {
 580                                 $link = Linker::linkKnown( $newSubpage );
 581                                 $extraOutput []= $this->msg( 'movepage-page-exists' )->rawParams( $link )->escaped();
 582                         } else {
 583                                 $success = $oldSubpage->moveTo( $newSubpage, true, $this->reason, $createRedirect );
 584                                 if( $success === true ) {
 585                                         if ( $this->fixRedirects ) {
 586                                                 DoubleRedirectJob::fixRedirects( 'move', $oldSubpage, $newSubpage );
 587                                         }
 588                                         $oldLink = Linker::link(
 589                                                 $oldSubpage,
 590                                                 null,
 591                                                 array(),
 592                                                 array( 'redirect' => 'no' )
 593                                         );
 594                                         $newLink = Linker::linkKnown( $newSubpage );
 595                                         $extraOutput []= $this->msg( 'movepage-page-moved' )->rawParams( $oldLink, $newLink )->escaped();
 596                                         ++$count;
 597                                         if( $count >= $wgMaximumMovedPages ) {
 598                                                 $extraOutput []= $this->msg( 'movepage-max-pages' )->numParams( $wgMaximumMovedPages )->escaped();
 599                                                 break;
 600                                         }
 601                                 } else {
 602                                         $oldLink = Linker::linkKnown( $oldSubpage );
 603                                         $newLink = Linker::link( $newSubpage );
 604                                         $extraOutput []= $this->msg( 'movepage-page-unmoved' )->rawParams( $oldLink, $newLink )->escaped();
 605                                 }
 606                         }
 607
 608                 }
 609
 610                 if( $extraOutput !== array() ) {
 611                         $out->addHTML( "<ul>\n<li>" . implode( "</li>\n<li>", $extraOutput ) . "</li>\n</ul>" );
 612                 }
 613
 614                 # Deal with watches (we don't watch subpages)
 615                 if( $this->watch && $user->isLoggedIn() ) {
 616                         $user->addWatch( $ot );
 617                         $user->addWatch( $nt );
 618                 } else {
 619                         $user->removeWatch( $ot );
 620                         $user->removeWatch( $nt );
 621                 }
 622
 623                 # Re-clear the file redirect cache, which may have been polluted by
 624                 # parsing in messages above. See CR r56745.
 625                 # @todo FIXME: Needs a more robust solution inside FileRepo.
 626                 if( $ot->getNamespace() == NS_FILE ) {
 627                         RepoGroup::singleton()->getLocalRepo()->invalidateImageRedirect( $ot );
 628                 }
 629         }
 630
 631         function showLogFragment( $title ) {
 632                 $out = $this->getOutput();
 633                 $out->addHTML( Xml::element( 'h2', null, LogPage::logName( 'move' ) ) );
 634                 LogEventsList::showLogExtract( $out, 'move', $title );
 635         }
 636
 637         function showSubpages( $title ) {
 638                 if( !MWNamespace::hasSubpages( $title->getNamespace() ) )
 639                         return;
 640
 641                 $subpages = $title->getSubpages();
 642                 $count = $subpages instanceof TitleArray ? $subpages->count() : 0;
 643
 644                 $out = $this->getOutput();
 645                 $out->wrapWikiMsg( '== $1 ==', array( 'movesubpage', $count ) );
 646
 647                 # No subpages.
 648                 if ( $count == 0 ) {
 649                         $out->addWikiMsg( 'movenosubpage' );
 650                         return;
 651                 }
 652
 653                 $out->addWikiMsg( 'movesubpagetext', $this->getLanguage()->formatNum( $count ) );
 654                 $out->addHTML( "<ul>\n" );
 655
 656                 foreach( $subpages as $subpage ) {
 657                         $link = Linker::link( $subpage );
 658                         $out->addHTML( "<li>$link</li>\n" );
 659                 }
 660                 $out->addHTML( "</ul>\n" );
 661         }
 662 }