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                 $user = $this->getUser();
  75
  76                 # Check rights
  77                 $permErrors = $this->oldTitle->getUserPermissionsErrors( 'move', $user );
  78                 if ( count( $permErrors ) ) {
  79                         // Auto-block user's IP if the account was "hard" blocked
  80                         $user->spreadAnyEditBlock();
  81                         throw new PermissionsError( 'move', $permErrors );
  82                 }
  83
  84                 $def = !$request->wasPosted();
  85
  86                 $this->reason = $request->getText( 'wpReason' );
  87                 $this->moveTalk = $request->getBool( 'wpMovetalk', $def );
  88                 $this->fixRedirects = $request->getBool( 'wpFixRedirects', $def );
  89                 $this->leaveRedirect = $request->getBool( 'wpLeaveRedirect', $def );
  90                 $this->moveSubpages = $request->getBool( 'wpMovesubpages', false );
  91                 $this->deleteAndMove = $request->getBool( 'wpDeleteAndMove' ) && $request->getBool( 'wpConfirm' );
  92                 $this->moveOverShared = $request->getBool( 'wpMoveOverSharedFile', false );
  93                 $this->watch = $request->getCheck( 'wpWatch' ) && $user->isLoggedIn();
  94
  95                 if ( 'submit' == $request->getVal( 'action' ) && $request->wasPosted()
  96                         && $user->matchEditToken( $request->getVal( 'wpEditToken' ) ) ) {
  97                         $this->doSubmit();
  98                 } else {
  99                         $this->showForm( array() );
 100                 }
 101         }
 102
 103         /**
 104          * Show the form
 105          *
 106          * @param array $err error messages. Each item is an error message.
 107          *    It may either be a string message name or array message name and
 108          *    parameters, like the second argument to OutputPage::wrapWikiMsg().
 109          */
 110         function showForm( $err ) {
 111                 global $wgContLang, $wgFixDoubleRedirects, $wgMaximumMovedPages;
 112
 113                 $this->getSkin()->setRelevantTitle( $this->oldTitle );
 114
 115                 $oldTitleLink = Linker::link( $this->oldTitle );
 116
 117                 $out = $this->getOutput();
 118                 $out->setPageTitle( $this->msg( 'move-page', $this->oldTitle->getPrefixedText() ) );
 119                 $out->addModules( 'mediawiki.special.movePage' );
 120
 121                 $newTitle = $this->newTitle;
 122
 123                 if ( !$newTitle ) {
 124                         # Show the current title as a default
 125                         # when the form is first opened.
 126                         $newTitle = $this->oldTitle;
 127                 } elseif ( !count( $err ) ) {
 128                         # If a title was supplied, probably from the move log revert
 129                         # link, check for validity. We can then show some diagnostic
 130                         # information and save a click.
 131                         $newerr = $this->oldTitle->isValidMoveOperation( $newTitle );
 132                         if ( is_array( $newerr ) ) {
 133                                 $err = $newerr;
 134                         }
 135                 }
 136
 137                 $user = $this->getUser();
 138
 139                 if ( count( $err ) == 1 && isset( $err[0][0] ) && $err[0][0] == 'articleexists'
 140                         && $newTitle->quickUserCan( 'delete', $user )
 141                 ) {
 142                         $out->addWikiMsg( 'delete_and_move_text', $newTitle->getPrefixedText() );
 143                         $movepagebtn = $this->msg( 'delete_and_move' )->text();
 144                         $submitVar = 'wpDeleteAndMove';
 145                         $confirm = "
 146                                 <tr>
 147                                         <td></td>
 148                                         <td class='mw-input'>" .
 149                                                 Xml::checkLabel( $this->msg( 'delete_and_move_confirm' )->text(), 'wpConfirm', 'wpConfirm' ) .
 150                                         "</td>
 151                                 </tr>";
 152                         $err = array();
 153                 } else {
 154                         if ( $this->oldTitle->getNamespace() == NS_USER && !$this->oldTitle->isSubpage() ) {
 155                                 $out->wrapWikiMsg( "<div class=\"error mw-moveuserpage-warning\">\n$1\n</div>", 'moveuserpage-warning' );
 156                         }
 157                         $out->addWikiMsg( $wgFixDoubleRedirects ? 'movepagetext' :
 158                                 'movepagetext-noredirectfixer' );
 159                         $movepagebtn = $this->msg( 'movepagebtn' )->text();
 160                         $submitVar = 'wpMove';
 161                         $confirm = false;
 162                 }
 163
 164                 if ( count( $err ) == 1 && isset( $err[0][0] ) && $err[0][0] == 'file-exists-sharedrepo'
 165                         && $user->isAllowed( 'reupload-shared' )
 166                 ) {
 167                         $out->addWikiMsg( 'move-over-sharedrepo', $newTitle->getPrefixedText() );
 168                         $submitVar = 'wpMoveOverSharedFile';
 169                         $err = array();
 170                 }
 171
 172                 $oldTalk = $this->oldTitle->getTalkPage();
 173                 $oldTitleSubpages = $this->oldTitle->hasSubpages();
 174                 $oldTitleTalkSubpages = $this->oldTitle->getTalkPage()->hasSubpages();
 175
 176                 $canMoveSubpage = ( $oldTitleSubpages || $oldTitleTalkSubpages ) &&
 177                         !count( $this->oldTitle->getUserPermissionsErrors( 'move-subpages', $user ) );
 178
 179                 # We also want to be able to move assoc. subpage talk-pages even if base page
 180                 # has no associated talk page, so || with $oldTitleTalkSubpages.
 181                 $considerTalk = !$this->oldTitle->isTalkPage() &&
 182                         ( $oldTalk->exists()
 183                                 || ( $oldTitleTalkSubpages && $canMoveSubpage ) );
 184
 185                 $dbr = wfGetDB( DB_SLAVE );
 186                 if ( $wgFixDoubleRedirects ) {
 187                         $hasRedirects = $dbr->selectField( 'redirect', '1',
 188                                 array(
 189                                         'rd_namespace' => $this->oldTitle->getNamespace(),
 190                                         'rd_title' => $this->oldTitle->getDBkey(),
 191                                 ), __METHOD__ );
 192                 } else {
 193                         $hasRedirects = false;
 194                 }
 195
 196                 if ( $considerTalk ) {
 197                         $out->addWikiMsg( 'movepagetalktext' );
 198                 }
 199
 200                 if ( count( $err ) ) {
 201                         $out->addHTML( "<div class='error'>\n" );
 202                         $action_desc = $this->msg( 'action-move' )->plain();
 203                         $out->addWikiMsg( 'permissionserrorstext-withaction', count( $err ), $action_desc );
 204
 205                         if ( count( $err ) == 1 ) {
 206                                 $errMsg = $err[0];
 207                                 $errMsgName = array_shift( $errMsg );
 208                                 if ( $errMsgName == 'hookaborted' ) {
 209                                         $out->addHTML( "<p>{$errMsg[0]}</p>\n" );
 210                                 } else {
 211                                         $out->addWikiMsgArray( $errMsgName, $errMsg );
 212                                 }
 213                         } else {
 214                                 $errStr = array();
 215                                 foreach ( $err as $errMsg ) {
 216                                         if ( $errMsg[0] == 'hookaborted' ) {
 217                                                 $errStr[] = $errMsg[1];
 218                                         } else {
 219                                                 $errMsgName = array_shift( $errMsg );
 220                                                 $errStr[] = $this->msg( $errMsgName, $errMsg )->parse();
 221                                         }
 222                                 }
 223
 224                                 $out->addHTML( '<ul><li>' . implode( "</li>\n<li>", $errStr ) . "</li></ul>\n" );
 225                         }
 226                         $out->addHTML( "</div>\n" );
 227                 }
 228
 229                 if ( $this->oldTitle->isProtected( 'move' ) ) {
 230                         # Is the title semi-protected?
 231                         if ( $this->oldTitle->isSemiProtected( 'move' ) ) {
 232                                 $noticeMsg = 'semiprotectedpagemovewarning';
 233                                 $classes[] = 'mw-textarea-sprotected';
 234                         } else {
 235                                 # Then it must be protected based on static groups (regular)
 236                                 $noticeMsg = 'protectedpagemovewarning';
 237                                 $classes[] = 'mw-textarea-protected';
 238                         }
 239                         $out->addHTML( "<div class='mw-warning-with-logexcerpt'>\n" );
 240                         $out->addWikiMsg( $noticeMsg );
 241                         LogEventsList::showLogExtract( $out, 'protect', $this->oldTitle, '', array( 'lim' => 1 ) );
 242                         $out->addHTML( "</div>\n" );
 243                 }
 244
 245                 // Byte limit (not string length limit) for wpReason and wpNewTitleMain
 246                 // is enforced in the mediawiki.special.movePage module
 247
 248                 $immovableNamespaces = array();
 249
 250                 foreach ( array_keys( $this->getLanguage()->getNamespaces() ) as $nsId ) {
 251                         if ( !MWNamespace::isMovable( $nsId ) ) {
 252                                 $immovableNamespaces[] = $nsId;
 253                         }
 254                 }
 255
 256                 $handler = ContentHandler::getForTitle( $this->oldTitle );
 257
 258                 $out->addHTML(
 259                         Xml::openElement( 'form', array( 'method' => 'post', 'action' => $this->getTitle()->getLocalURL( 'action=submit' ), 'id' => 'movepage' ) ) .
 260                         Xml::openElement( 'fieldset' ) .
 261                         Xml::element( 'legend', null, $this->msg( 'move-page-legend' )->text() ) .
 262                         Xml::openElement( 'table', array( 'id' => 'mw-movepage-table' ) ) .
 263                         "<tr>
 264                                 <td class='mw-label'>" .
 265                                         $this->msg( 'movearticle' )->escaped() .
 266                                 "</td>
 267                                 <td class='mw-input'>
 268                                         <strong>{$oldTitleLink}</strong>
 269                                 </td>
 270                         </tr>
 271                         <tr>
 272                                 <td class='mw-label'>" .
 273                                         Xml::label( $this->msg( 'newtitle' )->text(), 'wpNewTitleMain' ) .
 274                                 "</td>
 275                                 <td class='mw-input'>" .
 276                                         Html::namespaceSelector(
 277                                                 array(
 278                                                         'selected' => $newTitle->getNamespace(),
 279                                                         'exclude' => $immovableNamespaces
 280                                                 ),
 281                                                 array( 'name' => 'wpNewTitleNs', 'id' => 'wpNewTitleNs' )
 282                                         ) .
 283                                         Xml::input( 'wpNewTitleMain', 60, $wgContLang->recodeForEdit( $newTitle->getText() ), array(
 284                                                 'type' => 'text',
 285                                                 'id' => 'wpNewTitleMain',
 286                                                 'maxlength' => 255,
 287                                         ) ) .
 288                                         Html::hidden( 'wpOldTitle', $this->oldTitle->getPrefixedText() ) .
 289                                 "</td>
 290                         </tr>
 291                         <tr>
 292                                 <td class='mw-label'>" .
 293                                         Xml::label( $this->msg( 'movereason' )->text(), 'wpReason' ) .
 294                                 "</td>
 295                                 <td class='mw-input'>" .
 296                                         Xml::input( 'wpReason', 60, $this->reason, array(
 297                                                 'type' => 'text',
 298                                                 'id' => 'wpReason',
 299                                                 'maxlength' => 200,
 300                                         ) ) .
 301                                 "</td>
 302                         </tr>"
 303                 );
 304
 305                 if ( $considerTalk ) {
 306                         $out->addHTML( "
 307                                 <tr>
 308                                         <td></td>
 309                                         <td class='mw-input'>" .
 310                                                 Xml::checkLabel( $this->msg( 'movetalk' )->text(), 'wpMovetalk', 'wpMovetalk', $this->moveTalk ) .
 311                                         "</td>
 312                                 </tr>"
 313                         );
 314                 }
 315
 316                 if ( $user->isAllowed( 'suppressredirect' ) && $handler->supportsRedirects() ) {
 317                         $out->addHTML( "
 318                                 <tr>
 319                                         <td></td>
 320                                         <td class='mw-input' >" .
 321                                                 Xml::checkLabel( $this->msg( 'move-leave-redirect' )->text(), 'wpLeaveRedirect',
 322                                                         'wpLeaveRedirect', $this->leaveRedirect ) .
 323                                         "</td>
 324                                 </tr>"
 325                         );
 326                 }
 327
 328                 if ( $hasRedirects ) {
 329                         $out->addHTML( "
 330                                 <tr>
 331                                         <td></td>
 332                                         <td class='mw-input' >" .
 333                                                 Xml::checkLabel( $this->msg( 'fix-double-redirects' )->text(), 'wpFixRedirects',
 334                                                         'wpFixRedirects', $this->fixRedirects ) .
 335                                         "</td>
 336                                 </tr>"
 337                         );
 338                 }
 339
 340                 if ( $canMoveSubpage ) {
 341                         $out->addHTML( "
 342                                 <tr>
 343                                         <td></td>
 344                                         <td class=\"mw-input\">" .
 345                                 Xml::check(
 346                                         'wpMovesubpages',
 347                                         # Don't check the box if we only have talk subpages to
 348                                         # move and we aren't moving the talk page.
 349                                         $this->moveSubpages && ( $this->oldTitle->hasSubpages() || $this->moveTalk ),
 350                                         array( 'id' => 'wpMovesubpages' )
 351                                 ) . '&#160;' .
 352                                 Xml::tags( 'label', array( 'for' => 'wpMovesubpages' ),
 353                                         $this->msg(
 354                                                 ( $this->oldTitle->hasSubpages()
 355                                                         ? 'move-subpages'
 356                                                         : 'move-talk-subpages' )
 357                                                 )->numParams( $wgMaximumMovedPages )->params( $wgMaximumMovedPages )->parse()
 358                                 ) .
 359                                         "</td>
 360                                 </tr>"
 361                         );
 362                 }
 363
 364                 $watchChecked = $user->isLoggedIn() && ( $this->watch || $user->getBoolOption( 'watchmoves' )
 365                         || $user->isWatched( $this->oldTitle ) );
 366                 # Don't allow watching if user is not logged in
 367                 if ( $user->isLoggedIn() ) {
 368                         $out->addHTML( "
 369                         <tr>
 370                                 <td></td>
 371                                 <td class='mw-input'>" .
 372                                         Xml::checkLabel( $this->msg( 'move-watch' )->text(), 'wpWatch', 'watch', $watchChecked ) .
 373                                 "</td>
 374                         </tr>" );
 375                 }
 376
 377                 $out->addHTML( "
 378                                 {$confirm}
 379                         <tr>
 380                                 <td>&#160;</td>
 381                                 <td class='mw-submit'>" .
 382                                         Xml::submitButton( $movepagebtn, array( 'name' => $submitVar ) ) .
 383                                 "</td>
 384                         </tr>" .
 385                         Xml::closeElement( 'table' ) .
 386                         Html::hidden( 'wpEditToken', $user->getEditToken() ) .
 387                         Xml::closeElement( 'fieldset' ) .
 388                         Xml::closeElement( 'form' ) .
 389                         "\n"
 390                 );
 391
 392                 $this->showLogFragment( $this->oldTitle );
 393                 $this->showSubpages( $this->oldTitle );
 394
 395         }
 396
 397         function doSubmit() {
 398                 global $wgMaximumMovedPages, $wgFixDoubleRedirects;
 399
 400                 $user = $this->getUser();
 401
 402                 if ( $user->pingLimiter( 'move' ) ) {
 403                         throw new ThrottledError;
 404                 }
 405
 406                 $ot = $this->oldTitle;
 407                 $nt = $this->newTitle;
 408
 409                 # don't allow moving to pages with # in
 410                 if ( !$nt || $nt->getFragment() != '' ) {
 411                         $this->showForm( array( array( 'badtitletext' ) ) );
 412                         return;
 413                 }
 414
 415                 # Show a warning if the target file exists on a shared repo
 416                 if ( $nt->getNamespace() == NS_FILE
 417                         && !( $this->moveOverShared && $user->isAllowed( 'reupload-shared' ) )
 418                         && !RepoGroup::singleton()->getLocalRepo()->findFile( $nt )
 419                         && wfFindFile( $nt ) )
 420                 {
 421                         $this->showForm( array( array( 'file-exists-sharedrepo' ) ) );
 422                         return;
 423
 424                 }
 425
 426                 # Delete to make way if requested
 427                 if ( $this->deleteAndMove ) {
 428                         $permErrors = $nt->getUserPermissionsErrors( 'delete', $user );
 429                         if ( count( $permErrors ) ) {
 430                                 # Only show the first error
 431                                 $this->showForm( $permErrors );
 432                                 return;
 433                         }
 434
 435                         $reason = $this->msg( 'delete_and_move_reason', $ot )->inContentLanguage()->text();
 436
 437                         // Delete an associated image if there is
 438                         if ( $nt->getNamespace() == NS_FILE ) {
 439                                 $file = wfLocalFile( $nt );
 440                                 if ( $file->exists() ) {
 441                                         $file->delete( $reason, false );
 442                                 }
 443                         }
 444
 445                         $error = ''; // passed by ref
 446                         $page = WikiPage::factory( $nt );
 447                         $deleteStatus = $page->doDeleteArticleReal( $reason, false, 0, true, $error, $user );
 448                         if ( !$deleteStatus->isGood() ) {
 449                                 $this->showForm( $deleteStatus->getErrorsArray() );
 450                                 return;
 451                         }
 452                 }
 453
 454                 $handler = ContentHandler::getForTitle( $ot );
 455
 456                 if ( !$handler->supportsRedirects() ) {
 457                         $createRedirect = false;
 458                 } elseif ( $user->isAllowed( 'suppressredirect' ) ) {
 459                         $createRedirect = $this->leaveRedirect;
 460                 } else {
 461                         $createRedirect = true;
 462                 }
 463
 464                 # Do the actual move.
 465                 $error = $ot->moveTo( $nt, true, $this->reason, $createRedirect );
 466                 if ( $error !== true ) {
 467                         $this->showForm( $error );
 468                         return;
 469                 }
 470
 471                 if ( $wgFixDoubleRedirects && $this->fixRedirects ) {
 472                         DoubleRedirectJob::fixRedirects( 'move', $ot, $nt );
 473                 }
 474
 475                 $out = $this->getOutput();
 476                 $out->setPageTitle( $this->msg( 'pagemovedsub' ) );
 477
 478                 $oldLink = Linker::link(
 479                         $ot,
 480                         null,
 481                         array(),
 482                         array( 'redirect' => 'no' )
 483                 );
 484                 $newLink = Linker::linkKnown( $nt );
 485                 $oldText = $ot->getPrefixedText();
 486                 $newText = $nt->getPrefixedText();
 487
 488                 if ( $ot->exists() ) {
 489                         //NOTE: we assume that if the old title exists, it's because it was re-created as
 490                         // a redirect to the new title. This is not safe, but what we did before was
 491                         // even worse: we just determined whether a redirect should have been created,
 492                         // and reported that it was created if it should have, without any checks.
 493                         // Also note that isRedirect() is unreliable because of bug 37209.
 494                         $msgName = 'movepage-moved-redirect';
 495                 } else {
 496                         $msgName = 'movepage-moved-noredirect';
 497                 }
 498
 499                 $out->addHTML( $this->msg( 'movepage-moved' )->rawParams( $oldLink,
 500                         $newLink )->params( $oldText, $newText )->parseAsBlock() );
 501                 $out->addWikiMsg( $msgName );
 502
 503                 wfRunHooks( 'SpecialMovepageAfterMove', array( &$this, &$ot, &$nt ) );
 504
 505                 # Now we move extra pages we've been asked to move: subpages and talk
 506                 # pages.  First, if the old page or the new page is a talk page, we
 507                 # can't move any talk pages: cancel that.
 508                 if ( $ot->isTalkPage() || $nt->isTalkPage() ) {
 509                         $this->moveTalk = false;
 510                 }
 511
 512                 if ( count( $ot->getUserPermissionsErrors( 'move-subpages', $user ) ) ) {
 513                         $this->moveSubpages = false;
 514                 }
 515
 516                 # Next make a list of id's.  This might be marginally less efficient
 517                 # than a more direct method, but this is not a highly performance-cri-
 518                 # tical code path and readable code is more important here.
 519                 #
 520                 # Note: this query works nicely on MySQL 5, but the optimizer in MySQL
 521                 # 4 might get confused.  If so, consider rewriting as a UNION.
 522                 #
 523                 # If the target namespace doesn't allow subpages, moving with subpages
 524                 # would mean that you couldn't move them back in one operation, which
 525                 # is bad.
 526                 # @todo FIXME: A specific error message should be given in this case.
 527
 528                 // @todo FIXME: Use Title::moveSubpages() here
 529                 $dbr = wfGetDB( DB_MASTER );
 530                 if ( $this->moveSubpages && (
 531                         MWNamespace::hasSubpages( $nt->getNamespace() ) || (
 532                                 $this->moveTalk &&
 533                                 MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() )
 534                         )
 535                 ) ) {
 536                         $conds = array(
 537                                 'page_title' . $dbr->buildLike( $ot->getDBkey() . '/', $dbr->anyString() )
 538                                         . ' OR page_title = ' . $dbr->addQuotes( $ot->getDBkey() )
 539                         );
 540                         $conds['page_namespace'] = array();
 541                         if ( MWNamespace::hasSubpages( $nt->getNamespace() ) ) {
 542                                 $conds['page_namespace'][] = $ot->getNamespace();
 543                         }
 544                         if ( $this->moveTalk && MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() ) ) {
 545                                 $conds['page_namespace'][] = $ot->getTalkPage()->getNamespace();
 546                         }
 547                 } elseif ( $this->moveTalk ) {
 548                         $conds = array(
 549                                 'page_namespace' => $ot->getTalkPage()->getNamespace(),
 550                                 'page_title' => $ot->getDBkey()
 551                         );
 552                 } else {
 553                         # Skip the query
 554                         $conds = null;
 555                 }
 556
 557                 $extraPages = array();
 558                 if ( !is_null( $conds ) ) {
 559                         $extraPages = TitleArray::newFromResult(
 560                                 $dbr->select( 'page',
 561                                         array( 'page_id', 'page_namespace', 'page_title' ),
 562                                         $conds,
 563                                         __METHOD__
 564                                 )
 565                         );
 566                 }
 567
 568                 $extraOutput = array();
 569                 $count = 1;
 570                 foreach ( $extraPages as $oldSubpage ) {
 571                         if ( $ot->equals( $oldSubpage ) ) {
 572                                 # Already did this one.
 573                                 continue;
 574                         }
 575
 576                         $newPageName = preg_replace(
 577                                 '#^' . preg_quote( $ot->getDBkey(), '#' ) . '#',
 578                                 StringUtils::escapeRegexReplacement( $nt->getDBkey() ), # bug 21234
 579                                 $oldSubpage->getDBkey()
 580                         );
 581                         if ( $oldSubpage->isTalkPage() ) {
 582                                 $newNs = $nt->getTalkPage()->getNamespace();
 583                         } else {
 584                                 $newNs = $nt->getSubjectPage()->getNamespace();
 585                         }
 586                         # Bug 14385: we need makeTitleSafe because the new page names may
 587                         # be longer than 255 characters.
 588                         $newSubpage = Title::makeTitleSafe( $newNs, $newPageName );
 589                         if ( !$newSubpage ) {
 590                                 $oldLink = Linker::linkKnown( $oldSubpage );
 591                                 $extraOutput[] = $this->msg( 'movepage-page-unmoved' )->rawParams( $oldLink
 592                                         )->params( Title::makeName( $newNs, $newPageName ) )->escaped();
 593                                 continue;
 594                         }
 595
 596                         # This was copy-pasted from Renameuser, bleh.
 597                         if ( $newSubpage->exists() && !$oldSubpage->isValidMoveTarget( $newSubpage ) ) {
 598                                 $link = Linker::linkKnown( $newSubpage );
 599                                 $extraOutput[] = $this->msg( 'movepage-page-exists' )->rawParams( $link )->escaped();
 600                         } else {
 601                                 $success = $oldSubpage->moveTo( $newSubpage, true, $this->reason, $createRedirect );
 602                                 if ( $success === true ) {
 603                                         if ( $this->fixRedirects ) {
 604                                                 DoubleRedirectJob::fixRedirects( 'move', $oldSubpage, $newSubpage );
 605                                         }
 606                                         $oldLink = Linker::link(
 607                                                 $oldSubpage,
 608                                                 null,
 609                                                 array(),
 610                                                 array( 'redirect' => 'no' )
 611                                         );
 612                                         $newLink = Linker::linkKnown( $newSubpage );
 613                                         $extraOutput[] = $this->msg( 'movepage-page-moved' )->rawParams( $oldLink, $newLink )->escaped();
 614                                         ++$count;
 615                                         if ( $count >= $wgMaximumMovedPages ) {
 616                                                 $extraOutput[] = $this->msg( 'movepage-max-pages' )->numParams( $wgMaximumMovedPages )->escaped();
 617                                                 break;
 618                                         }
 619                                 } else {
 620                                         $oldLink = Linker::linkKnown( $oldSubpage );
 621                                         $newLink = Linker::link( $newSubpage );
 622                                         $extraOutput[] = $this->msg( 'movepage-page-unmoved' )->rawParams( $oldLink, $newLink )->escaped();
 623                                 }
 624                         }
 625
 626                 }
 627
 628                 if ( $extraOutput !== array() ) {
 629                         $out->addHTML( "<ul>\n<li>" . implode( "</li>\n<li>", $extraOutput ) . "</li>\n</ul>" );
 630                 }
 631
 632                 # Deal with watches (we don't watch subpages)
 633                 if ( $this->watch && $user->isLoggedIn() ) {
 634                         $user->addWatch( $ot );
 635                         $user->addWatch( $nt );
 636                 } else {
 637                         $user->removeWatch( $ot );
 638                         $user->removeWatch( $nt );
 639                 }
 640
 641                 # Re-clear the file redirect cache, which may have been polluted by
 642                 # parsing in messages above. See CR r56745.
 643                 # @todo FIXME: Needs a more robust solution inside FileRepo.
 644                 if ( $ot->getNamespace() == NS_FILE ) {
 645                         RepoGroup::singleton()->getLocalRepo()->invalidateImageRedirect( $ot );
 646                 }
 647         }
 648
 649         function showLogFragment( $title ) {
 650                 $moveLogPage = new LogPage( 'move' );
 651                 $out = $this->getOutput();
 652                 $out->addHTML( Xml::element( 'h2', null, $moveLogPage->getName()->text() ) );
 653                 LogEventsList::showLogExtract( $out, 'move', $title );
 654         }
 655
 656         function showSubpages( $title ) {
 657                 if ( !MWNamespace::hasSubpages( $title->getNamespace() ) ) {
 658                         return;
 659                 }
 660
 661                 $subpages = $title->getSubpages();
 662                 $count = $subpages instanceof TitleArray ? $subpages->count() : 0;
 663
 664                 $out = $this->getOutput();
 665                 $out->wrapWikiMsg( '== $1 ==', array( 'movesubpage', $count ) );
 666
 667                 # No subpages.
 668                 if ( $count == 0 ) {
 669                         $out->addWikiMsg( 'movenosubpage' );
 670                         return;
 671                 }
 672
 673                 $out->addWikiMsg( 'movesubpagetext', $this->getLanguage()->formatNum( $count ) );
 674                 $out->addHTML( "<ul>\n" );
 675
 676                 foreach ( $subpages as $subpage ) {
 677                         $link = Linker::link( $subpage );
 678                         $out->addHTML( "<li>$link</li>\n" );
 679                 }
 680                 $out->addHTML( "</ul>\n" );
 681         }
 682
 683         protected function getGroupName() {
 684                 return 'pagetools';
 685         }
 686 }