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                 $handler = ContentHandler::getForTitle( $this->oldTitle );
 258
 259                 $out->addHTML(
 260                         Xml::openElement( 'form', array( 'method' => 'post', 'action' => $this->getTitle()->getLocalURL( 'action=submit' ), 'id' => 'movepage' ) ) .
 261                         Xml::openElement( 'fieldset' ) .
 262                         Xml::element( 'legend', null, $this->msg( 'move-page-legend' )->text() ) .
 263                         Xml::openElement( 'table', array( 'id' => 'mw-movepage-table' ) ) .
 264                         "<tr>
 265                                 <td class='mw-label'>" .
 266                                         $this->msg( 'movearticle' )->escaped() .
 267                                 "</td>
 268                                 <td class='mw-input'>
 269                                         <strong>{$oldTitleLink}</strong>
 270                                 </td>
 271                         </tr>
 272                         <tr>
 273                                 <td class='mw-label'>" .
 274                                         Xml::label( $this->msg( 'newtitle' )->text(), 'wpNewTitleMain' ) .
 275                                 "</td>
 276                                 <td class='mw-input'>" .
 277                                         Html::namespaceSelector(
 278                                                 array(
 279                                                         'selected' => $newTitle->getNamespace(),
 280                                                         'exclude' => $immovableNamespaces
 281                                                 ),
 282                                                 array( 'name' => 'wpNewTitleNs', 'id' => 'wpNewTitleNs' )
 283                                         ) .
 284                                         Xml::input( 'wpNewTitleMain', 60, $wgContLang->recodeForEdit( $newTitle->getText() ), array(
 285                                                 'type' => 'text',
 286                                                 'id' => 'wpNewTitleMain',
 287                                                 'maxlength' => 255,
 288                                         ) ) .
 289                                         Html::hidden( 'wpOldTitle', $this->oldTitle->getPrefixedText() ) .
 290                                 "</td>
 291                         </tr>
 292                         <tr>
 293                                 <td class='mw-label'>" .
 294                                         Xml::label( $this->msg( 'movereason' )->text(), 'wpReason' ) .
 295                                 "</td>
 296                                 <td class='mw-input'>" .
 297                                         Html::element( 'textarea', array( 'name' => 'wpReason', 'id' => 'wpReason', 'cols' => 60, 'rows' => 2,
 298                                         'maxlength' => 200 ), $this->reason ) .
 299                                 "</td>
 300                         </tr>"
 301                 );
 302
 303                 if( $considerTalk ) {
 304                         $out->addHTML( "
 305                                 <tr>
 306                                         <td></td>
 307                                         <td class='mw-input'>" .
 308                                                 Xml::checkLabel( $this->msg( 'movetalk' )->text(), 'wpMovetalk', 'wpMovetalk', $this->moveTalk ) .
 309                                         "</td>
 310                                 </tr>"
 311                         );
 312                 }
 313
 314                 if ( $user->isAllowed( 'suppressredirect' ) && $handler->supportsRedirects() ) {
 315                         $out->addHTML( "
 316                                 <tr>
 317                                         <td></td>
 318                                         <td class='mw-input' >" .
 319                                                 Xml::checkLabel( $this->msg( 'move-leave-redirect' )->text(), 'wpLeaveRedirect',
 320                                                         'wpLeaveRedirect', $this->leaveRedirect ) .
 321                                         "</td>
 322                                 </tr>"
 323                         );
 324                 }
 325
 326                 if ( $hasRedirects ) {
 327                         $out->addHTML( "
 328                                 <tr>
 329                                         <td></td>
 330                                         <td class='mw-input' >" .
 331                                                 Xml::checkLabel( $this->msg( 'fix-double-redirects' )->text(), 'wpFixRedirects',
 332                                                         'wpFixRedirects', $this->fixRedirects ) .
 333                                         "</td>
 334                                 </tr>"
 335                         );
 336                 }
 337
 338                 if( $canMoveSubpage ) {
 339                         $out->addHTML( "
 340                                 <tr>
 341                                         <td></td>
 342                                         <td class=\"mw-input\">" .
 343                                 Xml::check(
 344                                         'wpMovesubpages',
 345                                         # Don't check the box if we only have talk subpages to
 346                                         # move and we aren't moving the talk page.
 347                                         $this->moveSubpages && ( $this->oldTitle->hasSubpages() || $this->moveTalk ),
 348                                         array( 'id' => 'wpMovesubpages' )
 349                                 ) . '&#160;' .
 350                                 Xml::tags( 'label', array( 'for' => 'wpMovesubpages' ),
 351                                         $this->msg(
 352                                                 ( $this->oldTitle->hasSubpages()
 353                                                         ? 'move-subpages'
 354                                                         : 'move-talk-subpages' )
 355                                                 )->numParams( $wgMaximumMovedPages )->params( $wgMaximumMovedPages )->parse()
 356                                 ) .
 357                                         "</td>
 358                                 </tr>"
 359                         );
 360                 }
 361
 362                 $watchChecked = $user->isLoggedIn() && ( $this->watch || $user->getBoolOption( 'watchmoves' )
 363                         || $user->isWatched( $this->oldTitle ) );
 364                 # Don't allow watching if user is not logged in
 365                 if( $user->isLoggedIn() ) {
 366                         $out->addHTML( "
 367                         <tr>
 368                                 <td></td>
 369                                 <td class='mw-input'>" .
 370                                         Xml::checkLabel( $this->msg( 'move-watch' )->text(), 'wpWatch', 'watch', $watchChecked ) .
 371                                 "</td>
 372                         </tr>");
 373                 }
 374
 375                 $out->addHTML( "
 376                                 {$confirm}
 377                         <tr>
 378                                 <td>&#160;</td>
 379                                 <td class='mw-submit'>" .
 380                                         Xml::submitButton( $movepagebtn, array( 'name' => $submitVar ) ) .
 381                                 "</td>
 382                         </tr>" .
 383                         Xml::closeElement( 'table' ) .
 384                         Html::hidden( 'wpEditToken', $user->getEditToken() ) .
 385                         Xml::closeElement( 'fieldset' ) .
 386                         Xml::closeElement( 'form' ) .
 387                         "\n"
 388                 );
 389
 390                 $this->showLogFragment( $this->oldTitle );
 391                 $this->showSubpages( $this->oldTitle );
 392
 393         }
 394
 395         function doSubmit() {
 396                 global $wgMaximumMovedPages, $wgFixDoubleRedirects;
 397
 398                 $user = $this->getUser();
 399
 400                 if ( $user->pingLimiter( 'move' ) ) {
 401                         throw new ThrottledError;
 402                 }
 403
 404                 $ot = $this->oldTitle;
 405                 $nt = $this->newTitle;
 406
 407                 # don't allow moving to pages with # in
 408                 if ( !$nt || $nt->getFragment() != '' ) {
 409                         $this->showForm( array( array( 'badtitletext' ) ) );
 410                         return;
 411                 }
 412
 413                 # Show a warning if the target file exists on a shared repo
 414                 if ( $nt->getNamespace() == NS_FILE
 415                         && !( $this->moveOverShared && $user->isAllowed( 'reupload-shared' ) )
 416                         && !RepoGroup::singleton()->getLocalRepo()->findFile( $nt )
 417                         && wfFindFile( $nt ) )
 418                 {
 419                         $this->showForm( array( array( 'file-exists-sharedrepo' ) ) );
 420                         return;
 421
 422                 }
 423
 424                 # Delete to make way if requested
 425                 if ( $this->deleteAndMove ) {
 426                         $permErrors = $nt->getUserPermissionsErrors( 'delete', $user );
 427                         if ( count( $permErrors ) ) {
 428                                 # Only show the first error
 429                                 $this->showForm( $permErrors );
 430                                 return;
 431                         }
 432
 433                         $reason = $this->msg( 'delete_and_move_reason', $ot )->inContentLanguage()->text();
 434
 435                         // Delete an associated image if there is
 436                         if ( $nt->getNamespace() == NS_FILE ) {
 437                                 $file = wfLocalFile( $nt );
 438                                 if ( $file->exists() ) {
 439                                         $file->delete( $reason, false );
 440                                 }
 441                         }
 442
 443                         $error = ''; // passed by ref
 444                         $page = WikiPage::factory( $nt );
 445                         $deleteStatus = $page->doDeleteArticleReal( $reason, false, 0, true, $error, $user );
 446                         if ( !$deleteStatus->isGood() ) {
 447                                 $this->showForm( $deleteStatus->getErrorsArray() );
 448                                 return;
 449                         }
 450                 }
 451
 452                 $handler = ContentHandler::getForTitle( $ot );
 453
 454                 if ( !$handler->supportsRedirects() ) {
 455                         $createRedirect = false;
 456                 } elseif ( $user->isAllowed( 'suppressredirect' ) ) {
 457                         $createRedirect = $this->leaveRedirect;
 458                 } else {
 459                         $createRedirect = true;
 460                 }
 461
 462                 # Do the actual move.
 463                 $error = $ot->moveTo( $nt, true, $this->reason, $createRedirect );
 464                 if ( $error !== true ) {
 465                         $this->showForm( $error );
 466                         return;
 467                 }
 468
 469                 if ( $wgFixDoubleRedirects && $this->fixRedirects ) {
 470                         DoubleRedirectJob::fixRedirects( 'move', $ot, $nt );
 471                 }
 472
 473                 $out = $this->getOutput();
 474                 $out->setPageTitle( $this->msg( 'pagemovedsub' ) );
 475
 476                 $oldLink = Linker::link(
 477                         $ot,
 478                         null,
 479                         array(),
 480                         array( 'redirect' => 'no' )
 481                 );
 482                 $newLink = Linker::linkKnown( $nt );
 483                 $oldText = $ot->getPrefixedText();
 484                 $newText = $nt->getPrefixedText();
 485
 486                 if ( $ot->exists() ) {
 487                         //NOTE: we assume that if the old title exists, it's because it was re-created as
 488                         // a redirect to the new title. This is not safe, but what we did before was
 489                         // even worse: we just determined whether a redirect should have been created,
 490                         // and reported that it was created if it should have, without any checks.
 491                         // Also note that isRedirect() is unreliable because of bug 37209.
 492                         $msgName = 'movepage-moved-redirect';
 493                 } else {
 494                         $msgName = 'movepage-moved-noredirect';
 495                 }
 496
 497
 498                 $out->addHTML( $this->msg( 'movepage-moved' )->rawParams( $oldLink,
 499                         $newLink )->params( $oldText, $newText )->parseAsBlock() );
 500                 $out->addWikiMsg( $msgName );
 501
 502                 wfRunHooks( 'SpecialMovepageAfterMove', array( &$this, &$ot, &$nt ) );
 503
 504                 # Now we move extra pages we've been asked to move: subpages and talk
 505                 # pages.  First, if the old page or the new page is a talk page, we
 506                 # can't move any talk pages: cancel that.
 507                 if( $ot->isTalkPage() || $nt->isTalkPage() ) {
 508                         $this->moveTalk = false;
 509                 }
 510
 511                 if ( count( $ot->getUserPermissionsErrors( 'move-subpages', $user ) ) ) {
 512                         $this->moveSubpages = false;
 513                 }
 514
 515                 # Next make a list of id's.  This might be marginally less efficient
 516                 # than a more direct method, but this is not a highly performance-cri-
 517                 # tical code path and readable code is more important here.
 518                 #
 519                 # Note: this query works nicely on MySQL 5, but the optimizer in MySQL
 520                 # 4 might get confused.  If so, consider rewriting as a UNION.
 521                 #
 522                 # If the target namespace doesn't allow subpages, moving with subpages
 523                 # would mean that you couldn't move them back in one operation, which
 524                 # is bad.
 525                 # @todo FIXME: A specific error message should be given in this case.
 526
 527                 // @todo FIXME: Use Title::moveSubpages() here
 528                 $dbr = wfGetDB( DB_MASTER );
 529                 if( $this->moveSubpages && (
 530                         MWNamespace::hasSubpages( $nt->getNamespace() ) || (
 531                                 $this->moveTalk &&
 532                                 MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() )
 533                         )
 534                 ) ) {
 535                         $conds = array(
 536                                 'page_title' . $dbr->buildLike( $ot->getDBkey() . '/', $dbr->anyString() )
 537                                         .' OR page_title = ' . $dbr->addQuotes( $ot->getDBkey() )
 538                         );
 539                         $conds['page_namespace'] = array();
 540                         if( MWNamespace::hasSubpages( $nt->getNamespace() ) ) {
 541                                 $conds['page_namespace'][] = $ot->getNamespace();
 542                         }
 543                         if( $this->moveTalk && MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() ) ) {
 544                                 $conds['page_namespace'][] = $ot->getTalkPage()->getNamespace();
 545                         }
 546                 } elseif( $this->moveTalk ) {
 547                         $conds = array(
 548                                 'page_namespace' => $ot->getTalkPage()->getNamespace(),
 549                                 'page_title' => $ot->getDBkey()
 550                         );
 551                 } else {
 552                         # Skip the query
 553                         $conds = null;
 554                 }
 555
 556                 $extraPages = array();
 557                 if( !is_null( $conds ) ) {
 558                         $extraPages = TitleArray::newFromResult(
 559                                 $dbr->select( 'page',
 560                                         array( 'page_id', 'page_namespace', 'page_title' ),
 561                                         $conds,
 562                                         __METHOD__
 563                                 )
 564                         );
 565                 }
 566
 567                 $extraOutput = array();
 568                 $count = 1;
 569                 foreach( $extraPages as $oldSubpage ) {
 570                         if( $ot->equals( $oldSubpage ) ) {
 571                                 # Already did this one.
 572                                 continue;
 573                         }
 574
 575                         $newPageName = preg_replace(
 576                                 '#^'.preg_quote( $ot->getDBkey(), '#' ).'#',
 577                                 StringUtils::escapeRegexReplacement( $nt->getDBkey() ), # bug 21234
 578                                 $oldSubpage->getDBkey()
 579                         );
 580                         if( $oldSubpage->isTalkPage() ) {
 581                                 $newNs = $nt->getTalkPage()->getNamespace();
 582                         } else {
 583                                 $newNs = $nt->getSubjectPage()->getNamespace();
 584                         }
 585                         # Bug 14385: we need makeTitleSafe because the new page names may
 586                         # be longer than 255 characters.
 587                         $newSubpage = Title::makeTitleSafe( $newNs, $newPageName );
 588                         if( !$newSubpage ) {
 589                                 $oldLink = Linker::linkKnown( $oldSubpage );
 590                                 $extraOutput[] = $this->msg( 'movepage-page-unmoved' )->rawParams( $oldLink
 591                                         )->params( Title::makeName( $newNs, $newPageName ) )->escaped();
 592                                 continue;
 593                         }
 594
 595                         # This was copy-pasted from Renameuser, bleh.
 596                         if ( $newSubpage->exists() && !$oldSubpage->isValidMoveTarget( $newSubpage ) ) {
 597                                 $link = Linker::linkKnown( $newSubpage );
 598                                 $extraOutput[] = $this->msg( 'movepage-page-exists' )->rawParams( $link )->escaped();
 599                         } else {
 600                                 $success = $oldSubpage->moveTo( $newSubpage, true, $this->reason, $createRedirect );
 601                                 if( $success === true ) {
 602                                         if ( $this->fixRedirects ) {
 603                                                 DoubleRedirectJob::fixRedirects( 'move', $oldSubpage, $newSubpage );
 604                                         }
 605                                         $oldLink = Linker::link(
 606                                                 $oldSubpage,
 607                                                 null,
 608                                                 array(),
 609                                                 array( 'redirect' => 'no' )
 610                                         );
 611                                         $newLink = Linker::linkKnown( $newSubpage );
 612                                         $extraOutput[] = $this->msg( 'movepage-page-moved' )->rawParams( $oldLink, $newLink )->escaped();
 613                                         ++$count;
 614                                         if( $count >= $wgMaximumMovedPages ) {
 615                                                 $extraOutput[] = $this->msg( 'movepage-max-pages' )->numParams( $wgMaximumMovedPages )->escaped();
 616                                                 break;
 617                                         }
 618                                 } else {
 619                                         $oldLink = Linker::linkKnown( $oldSubpage );
 620                                         $newLink = Linker::link( $newSubpage );
 621                                         $extraOutput[] = $this->msg( 'movepage-page-unmoved' )->rawParams( $oldLink, $newLink )->escaped();
 622                                 }
 623                         }
 624
 625                 }
 626
 627                 if( $extraOutput !== array() ) {
 628                         $out->addHTML( "<ul>\n<li>" . implode( "</li>\n<li>", $extraOutput ) . "</li>\n</ul>" );
 629                 }
 630
 631                 # Deal with watches (we don't watch subpages)
 632                 if( $this->watch && $user->isLoggedIn() ) {
 633                         $user->addWatch( $ot );
 634                         $user->addWatch( $nt );
 635                 } else {
 636                         $user->removeWatch( $ot );
 637                         $user->removeWatch( $nt );
 638                 }
 639
 640                 # Re-clear the file redirect cache, which may have been polluted by
 641                 # parsing in messages above. See CR r56745.
 642                 # @todo FIXME: Needs a more robust solution inside FileRepo.
 643                 if( $ot->getNamespace() == NS_FILE ) {
 644                         RepoGroup::singleton()->getLocalRepo()->invalidateImageRedirect( $ot );
 645                 }
 646         }
 647
 648         function showLogFragment( $title ) {
 649                 $moveLogPage = new LogPage( 'move' );
 650                 $out = $this->getOutput();
 651                 $out->addHTML( Xml::element( 'h2', null, $moveLogPage->getName()->text() ) );
 652                 LogEventsList::showLogExtract( $out, 'move', $title );
 653         }
 654
 655         function showSubpages( $title ) {
 656                 if( !MWNamespace::hasSubpages( $title->getNamespace() ) )
 657                         return;
 658
 659                 $subpages = $title->getSubpages();
 660                 $count = $subpages instanceof TitleArray ? $subpages->count() : 0;
 661
 662                 $out = $this->getOutput();
 663                 $out->wrapWikiMsg( '== $1 ==', array( 'movesubpage', $count ) );
 664
 665                 # No subpages.
 666                 if ( $count == 0 ) {
 667                         $out->addWikiMsg( 'movenosubpage' );
 668                         return;
 669                 }
 670
 671                 $out->addWikiMsg( 'movesubpagetext', $this->getLanguage()->formatNum( $count ) );
 672                 $out->addHTML( "<ul>\n" );
 673
 674                 foreach( $subpages as $subpage ) {
 675                         $link = Linker::link( $subpage );
 676                         $out->addHTML( "<li>$link</li>\n" );
 677                 }
 678                 $out->addHTML( "</ul>\n" );
 679         }
 680 }