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         /** @var Title */
  31         protected $oldTitle = null;
  32
  33         /** @var Title */
  34         protected $newTitle;
  35
  36
  37         /** @var string Text input */
  38         protected $reason;
  39
  40         // Checks
  41
  42         /** @var bool */
  43         protected $moveTalk;
  44
  45         /** @var bool */
  46         protected $deleteAndMove;
  47
  48         /** @var bool */
  49         protected $moveSubpages;
  50
  51         /** @var bool */
  52         protected $fixRedirects;
  53
  54         /** @var bool */
  55         protected $leaveRedirect;
  56
  57         /** @var bool */
  58         protected $moveOverShared;
  59
  60         private $watch = false;
  61
  62         public function __construct() {
  63                 parent::__construct( 'Movepage' );
  64         }
  65
  66         public function execute( $par ) {
  67                 $this->useTransactionalTimeLimit();
  68
  69                 $this->checkReadOnly();
  70
  71                 $this->setHeaders();
  72                 $this->outputHeader();
  73
  74                 $request = $this->getRequest();
  75                 $target = !is_null( $par ) ? $par : $request->getVal( 'target' );
  76
  77                 // Yes, the use of getVal() and getText() is wanted, see bug 20365
  78
  79                 $oldTitleText = $request->getVal( 'wpOldTitle', $target );
  80                 if ( is_string( $oldTitleText ) ) {
  81                         $this->oldTitle = Title::newFromText( $oldTitleText );
  82                 }
  83
  84                 if ( $this->oldTitle === null ) {
  85                         // Either oldTitle wasn't passed, or newFromText returned null
  86                         throw new ErrorPageError( 'notargettitle', 'notargettext' );
  87                 }
  88                 if ( !$this->oldTitle->exists() ) {
  89                         throw new ErrorPageError( 'nopagetitle', 'nopagetext' );
  90                 }
  91
  92                 $newTitleTextMain = $request->getText( 'wpNewTitleMain' );
  93                 $newTitleTextNs = $request->getInt( 'wpNewTitleNs', $this->oldTitle->getNamespace() );
  94                 // Backwards compatibility for forms submitting here from other sources
  95                 // which is more common than it should be..
  96                 $newTitleText_bc = $request->getText( 'wpNewTitle' );
  97                 $this->newTitle = strlen( $newTitleText_bc ) > 0
  98                         ? Title::newFromText( $newTitleText_bc )
  99                         : Title::makeTitleSafe( $newTitleTextNs, $newTitleTextMain );
 100
 101                 $user = $this->getUser();
 102
 103                 # Check rights
 104                 $permErrors = $this->oldTitle->getUserPermissionsErrors( 'move', $user );
 105                 if ( count( $permErrors ) ) {
 106                         // Auto-block user's IP if the account was "hard" blocked
 107                         $user->spreadAnyEditBlock();
 108                         throw new PermissionsError( 'move', $permErrors );
 109                 }
 110
 111                 $def = !$request->wasPosted();
 112
 113                 $this->reason = $request->getText( 'wpReason' );
 114                 $this->moveTalk = $request->getBool( 'wpMovetalk', $def );
 115                 $this->fixRedirects = $request->getBool( 'wpFixRedirects', $def );
 116                 $this->leaveRedirect = $request->getBool( 'wpLeaveRedirect', $def );
 117                 $this->moveSubpages = $request->getBool( 'wpMovesubpages', false );
 118                 $this->deleteAndMove = $request->getBool( 'wpDeleteAndMove' ) && $request->getBool( 'wpConfirm' );
 119                 $this->moveOverShared = $request->getBool( 'wpMoveOverSharedFile', false );
 120                 $this->watch = $request->getCheck( 'wpWatch' ) && $user->isLoggedIn();
 121
 122                 if ( 'submit' == $request->getVal( 'action' ) && $request->wasPosted()
 123                         && $user->matchEditToken( $request->getVal( 'wpEditToken' ) )
 124                 ) {
 125                         $this->doSubmit();
 126                 } else {
 127                         $this->showForm( array() );
 128                 }
 129         }
 130
 131         /**
 132          * Show the form
 133          *
 134          * @param array $err Error messages. Each item is an error message.
 135          *    It may either be a string message name or array message name and
 136          *    parameters, like the second argument to OutputPage::wrapWikiMsg().
 137          */
 138         function showForm( $err ) {
 139                 global $wgContLang;
 140
 141                 $this->getSkin()->setRelevantTitle( $this->oldTitle );
 142
 143                 $oldTitleLink = Linker::link( $this->oldTitle );
 144
 145                 $out = $this->getOutput();
 146                 $out->setPageTitle( $this->msg( 'move-page', $this->oldTitle->getPrefixedText() ) );
 147                 $out->addModules( 'mediawiki.special.movePage' );
 148                 $this->addHelpLink( 'Help:Moving a page' );
 149
 150                 $newTitle = $this->newTitle;
 151
 152                 if ( !$newTitle ) {
 153                         # Show the current title as a default
 154                         # when the form is first opened.
 155                         $newTitle = $this->oldTitle;
 156                 } elseif ( !count( $err ) ) {
 157                         # If a title was supplied, probably from the move log revert
 158                         # link, check for validity. We can then show some diagnostic
 159                         # information and save a click.
 160                         $newerr = $this->oldTitle->isValidMoveOperation( $newTitle );
 161                         if ( is_array( $newerr ) ) {
 162                                 $err = $newerr;
 163                         }
 164                 }
 165
 166                 $user = $this->getUser();
 167
 168                 if ( count( $err ) == 1 && isset( $err[0][0] ) && $err[0][0] == 'articleexists'
 169                         && $newTitle->quickUserCan( 'delete', $user )
 170                 ) {
 171                         $out->addWikiMsg( 'delete_and_move_text', $newTitle->getPrefixedText() );
 172                         $movepagebtn = $this->msg( 'delete_and_move' )->text();
 173                         $submitVar = 'wpDeleteAndMove';
 174                         $confirm = true;
 175                         $err = array();
 176                 } else {
 177                         if ( $this->oldTitle->getNamespace() == NS_USER && !$this->oldTitle->isSubpage() ) {
 178                                 $out->wrapWikiMsg(
 179                                         "<div class=\"error mw-moveuserpage-warning\">\n$1\n</div>",
 180                                         'moveuserpage-warning'
 181                                 );
 182                         } elseif ( $this->oldTitle->getNamespace() == NS_CATEGORY ) {
 183                                 $out->wrapWikiMsg(
 184                                         "<div class=\"error mw-movecategorypage-warning\">\n$1\n</div>",
 185                                         'movecategorypage-warning'
 186                                 );
 187                         }
 188
 189                         $out->addWikiMsg( $this->getConfig()->get( 'FixDoubleRedirects' ) ?
 190                                 'movepagetext' :
 191                                 'movepagetext-noredirectfixer'
 192                         );
 193                         $movepagebtn = $this->msg( 'movepagebtn' )->text();
 194                         $submitVar = 'wpMove';
 195                         $confirm = false;
 196                 }
 197
 198                 if ( count( $err ) == 1 && isset( $err[0][0] ) && $err[0][0] == 'file-exists-sharedrepo'
 199                         && $user->isAllowed( 'reupload-shared' )
 200                 ) {
 201                         $out->addWikiMsg( 'move-over-sharedrepo', $newTitle->getPrefixedText() );
 202                         $submitVar = 'wpMoveOverSharedFile';
 203                         $err = array();
 204                 }
 205
 206                 $oldTalk = $this->oldTitle->getTalkPage();
 207                 $oldTitleSubpages = $this->oldTitle->hasSubpages();
 208                 $oldTitleTalkSubpages = $this->oldTitle->getTalkPage()->hasSubpages();
 209
 210                 $canMoveSubpage = ( $oldTitleSubpages || $oldTitleTalkSubpages ) &&
 211                         !count( $this->oldTitle->getUserPermissionsErrors( 'move-subpages', $user ) );
 212
 213                 # We also want to be able to move assoc. subpage talk-pages even if base page
 214                 # has no associated talk page, so || with $oldTitleTalkSubpages.
 215                 $considerTalk = !$this->oldTitle->isTalkPage() &&
 216                         ( $oldTalk->exists()
 217                                 || ( $oldTitleTalkSubpages && $canMoveSubpage ) );
 218
 219                 $dbr = wfGetDB( DB_SLAVE );
 220                 if ( $this->getConfig()->get( 'FixDoubleRedirects' ) ) {
 221                         $hasRedirects = $dbr->selectField( 'redirect', '1',
 222                                 array(
 223                                         'rd_namespace' => $this->oldTitle->getNamespace(),
 224                                         'rd_title' => $this->oldTitle->getDBkey(),
 225                                 ), __METHOD__ );
 226                 } else {
 227                         $hasRedirects = false;
 228                 }
 229
 230                 if ( $considerTalk ) {
 231                         $out->addWikiMsg( 'movepagetalktext' );
 232                 }
 233
 234                 if ( count( $err ) ) {
 235                         $out->addHTML( "<div class='error'>\n" );
 236                         $action_desc = $this->msg( 'action-move' )->plain();
 237                         $out->addWikiMsg( 'permissionserrorstext-withaction', count( $err ), $action_desc );
 238
 239                         if ( count( $err ) == 1 ) {
 240                                 $errMsg = $err[0];
 241                                 $errMsgName = array_shift( $errMsg );
 242
 243                                 if ( $errMsgName == 'hookaborted' ) {
 244                                         $out->addHTML( "<p>{$errMsg[0]}</p>\n" );
 245                                 } else {
 246                                         $out->addWikiMsgArray( $errMsgName, $errMsg );
 247                                 }
 248                         } else {
 249                                 $errStr = array();
 250
 251                                 foreach ( $err as $errMsg ) {
 252                                         if ( $errMsg[0] == 'hookaborted' ) {
 253                                                 $errStr[] = $errMsg[1];
 254                                         } else {
 255                                                 $errMsgName = array_shift( $errMsg );
 256                                                 $errStr[] = $this->msg( $errMsgName, $errMsg )->parse();
 257                                         }
 258                                 }
 259
 260                                 $out->addHTML( '<ul><li>' . implode( "</li>\n<li>", $errStr ) . "</li></ul>\n" );
 261                         }
 262                         $out->addHTML( "</div>\n" );
 263                 }
 264
 265                 if ( $this->oldTitle->isProtected( 'move' ) ) {
 266                         # Is the title semi-protected?
 267                         if ( $this->oldTitle->isSemiProtected( 'move' ) ) {
 268                                 $noticeMsg = 'semiprotectedpagemovewarning';
 269                                 $classes[] = 'mw-textarea-sprotected';
 270                         } else {
 271                                 # Then it must be protected based on static groups (regular)
 272                                 $noticeMsg = 'protectedpagemovewarning';
 273                                 $classes[] = 'mw-textarea-protected';
 274                         }
 275                         $out->addHTML( "<div class='mw-warning-with-logexcerpt'>\n" );
 276                         $out->addWikiMsg( $noticeMsg );
 277                         LogEventsList::showLogExtract(
 278                                 $out,
 279                                 'protect',
 280                                 $this->oldTitle,
 281                                 '',
 282                                 array( 'lim' => 1 )
 283                         );
 284                         $out->addHTML( "</div>\n" );
 285                 }
 286
 287                 // Byte limit (not string length limit) for wpReason and wpNewTitleMain
 288                 // is enforced in the mediawiki.special.movePage module
 289
 290                 $immovableNamespaces = array();
 291
 292                 foreach ( array_keys( $this->getLanguage()->getNamespaces() ) as $nsId ) {
 293                         if ( !MWNamespace::isMovable( $nsId ) ) {
 294                                 $immovableNamespaces[] = $nsId;
 295                         }
 296                 }
 297
 298                 $handler = ContentHandler::getForTitle( $this->oldTitle );
 299
 300                 $out->addHTML(
 301                         Xml::openElement(
 302                                 'form',
 303                                 array(
 304                                         'method' => 'post',
 305                                         'action' => $this->getPageTitle()->getLocalURL( 'action=submit' ),
 306                                         'id' => 'movepage'
 307                                 )
 308                         ) .
 309                         Xml::openElement( 'fieldset' ) .
 310                         Xml::element( 'legend', null, $this->msg( 'move-page-legend' )->text() ) .
 311                         Xml::openElement( 'table', array( 'id' => 'mw-movepage-table' ) )
 312                 );
 313
 314                 $out->addHTML(
 315                         "<tr>
 316                                 <td class='mw-label'>" .
 317                                         $this->msg( 'movearticle' )->escaped() .
 318                                 "</td>
 319                                 <td class='mw-input'>
 320                                         <strong>{$oldTitleLink}</strong>
 321                                 </td>
 322                         </tr>
 323                         <tr>
 324                                 <td class='mw-label'>" .
 325                                         Xml::label( $this->msg( 'newtitle' )->text(), 'wpNewTitleMain' ) .
 326                                 "</td>
 327                                 <td class='mw-input'>" .
 328                                         Html::namespaceSelector(
 329                                                 array(
 330                                                         'selected' => $newTitle->getNamespace(),
 331                                                         'exclude' => $immovableNamespaces
 332                                                 ),
 333                                                 array( 'name' => 'wpNewTitleNs', 'id' => 'wpNewTitleNs' )
 334                                         ) .
 335                                         Xml::input(
 336                                                 'wpNewTitleMain',
 337                                                 60,
 338                                                 $wgContLang->recodeForEdit( $newTitle->getText() ),
 339                                                 array(
 340                                                         'type' => 'text',
 341                                                         'id' => 'wpNewTitleMain',
 342                                                         'maxlength' => 255
 343                                                 )
 344                                         ) .
 345                                         Html::hidden( 'wpOldTitle', $this->oldTitle->getPrefixedText() ) .
 346                                 "</td>
 347                         </tr>
 348                         <tr>
 349                                 <td class='mw-label'>" .
 350                                         Xml::label( $this->msg( 'movereason' )->text(), 'wpReason' ) .
 351                                 "</td>
 352                                 <td class='mw-input'>" .
 353                                         Xml::input( 'wpReason', 60, $this->reason, array(
 354                                                 'type' => 'text',
 355                                                 'id' => 'wpReason',
 356                                                 'maxlength' => 200,
 357                                         ) ) .
 358                                 "</td>
 359                         </tr>"
 360                 );
 361
 362                 if ( $considerTalk ) {
 363                         $out->addHTML( "
 364                                 <tr>
 365                                         <td></td>
 366                                         <td class='mw-input'>" .
 367                                                 Xml::checkLabel(
 368                                                         $this->msg( 'movetalk' )->text(),
 369                                                         'wpMovetalk',
 370                                                         'wpMovetalk',
 371                                                         $this->moveTalk
 372                                                 ) .
 373                                         "</td>
 374                                 </tr>"
 375                         );
 376                 }
 377
 378                 if ( $user->isAllowed( 'suppressredirect' ) ) {
 379                         if ( $handler->supportsRedirects() ) {
 380                                 $isChecked = $this->leaveRedirect;
 381                                 $options = array();
 382                         } else {
 383                                 $isChecked = false;
 384                                 $options = array(
 385                                         'disabled' => 'disabled'
 386                                 );
 387                         }
 388                         $out->addHTML( "
 389                                 <tr>
 390                                         <td></td>
 391                                         <td class='mw-input'>" .
 392                                                 Xml::checkLabel(
 393                                                         $this->msg( 'move-leave-redirect' )->text(),
 394                                                         'wpLeaveRedirect',
 395                                                         'wpLeaveRedirect',
 396                                                         $isChecked,
 397                                                         $options
 398                                                 ) .
 399                                         "</td>
 400                                 </tr>"
 401                         );
 402                 }
 403
 404                 if ( $hasRedirects ) {
 405                         $out->addHTML( "
 406                                 <tr>
 407                                         <td></td>
 408                                         <td class='mw-input'>" .
 409                                                 Xml::checkLabel(
 410                                                         $this->msg( 'fix-double-redirects' )->text(),
 411                                                         'wpFixRedirects',
 412                                                         'wpFixRedirects',
 413                                                         $this->fixRedirects
 414                                                 ) .
 415                                         "</td>
 416                                 </tr>"
 417                         );
 418                 }
 419
 420                 if ( $canMoveSubpage ) {
 421                         $maximumMovedPages = $this->getConfig()->get( 'MaximumMovedPages' );
 422                         $out->addHTML( "
 423                                 <tr>
 424                                         <td></td>
 425                                         <td class='mw-input'>" .
 426                                                 Xml::check(
 427                                                         'wpMovesubpages',
 428                                                         # Don't check the box if we only have talk subpages to
 429                                                         # move and we aren't moving the talk page.
 430                                                         $this->moveSubpages && ( $this->oldTitle->hasSubpages() || $this->moveTalk ),
 431                                                         array( 'id' => 'wpMovesubpages' )
 432                                                 ) . '&#160;' .
 433                                                 Xml::tags(
 434                                                         'label',
 435                                                         array( 'for' => 'wpMovesubpages' ),
 436                                                         $this->msg(
 437                                                                 ( $this->oldTitle->hasSubpages()
 438                                                                         ? 'move-subpages'
 439                                                                         : 'move-talk-subpages' )
 440                                                         )->numParams( $maximumMovedPages )->params( $maximumMovedPages )->parse()
 441                                                 ) .
 442                                         "</td>
 443                                 </tr>"
 444                         );
 445                 }
 446
 447                 $watchChecked = $user->isLoggedIn() && ( $this->watch || $user->getBoolOption( 'watchmoves' )
 448                         || $user->isWatched( $this->oldTitle ) );
 449                 # Don't allow watching if user is not logged in
 450                 if ( $user->isLoggedIn() ) {
 451                         $out->addHTML( "
 452                                 <tr>
 453                                         <td></td>
 454                                         <td class='mw-input'>" .
 455                                                 Xml::checkLabel(
 456                                                         $this->msg( 'move-watch' )->text(),
 457                                                         'wpWatch',
 458                                                         'watch',
 459                                                         $watchChecked
 460                                                 ) .
 461                                         "</td>
 462                                 </tr>"
 463                         );
 464                 }
 465
 466                 if ( $confirm ) {
 467                         $out->addHTML( "
 468                                 <tr>
 469                                         <td></td>
 470                                         <td class='mw-input'>" .
 471                                                 Xml::checkLabel(
 472                                                         $this->msg( 'delete_and_move_confirm' )->text(),
 473                                                         'wpConfirm',
 474                                                         'wpConfirm'
 475                                                 ) .
 476                                         "</td>
 477                                 </tr>"
 478                         );
 479                 }
 480
 481                 $out->addHTML( "
 482                         <tr>
 483                                 <td></td>
 484                                 <td class='mw-submit'>" .
 485                                         Xml::submitButton( $movepagebtn, array( 'name' => $submitVar ) ) .
 486                                 "</td>
 487                         </tr>"
 488                 );
 489
 490                 $out->addHTML(
 491                         Xml::closeElement( 'table' ) .
 492                         Html::hidden( 'wpEditToken', $user->getEditToken() ) .
 493                         Xml::closeElement( 'fieldset' ) .
 494                         Xml::closeElement( 'form' ) .
 495                         "\n"
 496                 );
 497
 498                 $this->showLogFragment( $this->oldTitle );
 499                 $this->showSubpages( $this->oldTitle );
 500         }
 501
 502         function doSubmit() {
 503                 $user = $this->getUser();
 504
 505                 if ( $user->pingLimiter( 'move' ) ) {
 506                         throw new ThrottledError;
 507                 }
 508
 509                 $ot = $this->oldTitle;
 510                 $nt = $this->newTitle;
 511
 512                 # don't allow moving to pages with # in
 513                 if ( !$nt || $nt->hasFragment() ) {
 514                         $this->showForm( array( array( 'badtitletext' ) ) );
 515
 516                         return;
 517                 }
 518
 519                 # Show a warning if the target file exists on a shared repo
 520                 if ( $nt->getNamespace() == NS_FILE
 521                         && !( $this->moveOverShared && $user->isAllowed( 'reupload-shared' ) )
 522                         && !RepoGroup::singleton()->getLocalRepo()->findFile( $nt )
 523                         && wfFindFile( $nt )
 524                 ) {
 525                         $this->showForm( array( array( 'file-exists-sharedrepo' ) ) );
 526
 527                         return;
 528                 }
 529
 530                 # Delete to make way if requested
 531                 if ( $this->deleteAndMove ) {
 532                         $permErrors = $nt->getUserPermissionsErrors( 'delete', $user );
 533                         if ( count( $permErrors ) ) {
 534                                 # Only show the first error
 535                                 $this->showForm( $permErrors );
 536
 537                                 return;
 538                         }
 539
 540                         $reason = $this->msg( 'delete_and_move_reason', $ot )->inContentLanguage()->text();
 541
 542                         // Delete an associated image if there is
 543                         if ( $nt->getNamespace() == NS_FILE ) {
 544                                 $file = wfLocalFile( $nt );
 545                                 $file->load( File::READ_LATEST );
 546                                 if ( $file->exists() ) {
 547                                         $file->delete( $reason, false, $user );
 548                                 }
 549                         }
 550
 551                         $error = ''; // passed by ref
 552                         $page = WikiPage::factory( $nt );
 553                         $deleteStatus = $page->doDeleteArticleReal( $reason, false, 0, true, $error, $user );
 554                         if ( !$deleteStatus->isGood() ) {
 555                                 $this->showForm( $deleteStatus->getErrorsArray() );
 556
 557                                 return;
 558                         }
 559                 }
 560
 561                 $handler = ContentHandler::getForTitle( $ot );
 562
 563                 if ( !$handler->supportsRedirects() ) {
 564                         $createRedirect = false;
 565                 } elseif ( $user->isAllowed( 'suppressredirect' ) ) {
 566                         $createRedirect = $this->leaveRedirect;
 567                 } else {
 568                         $createRedirect = true;
 569                 }
 570
 571                 # Do the actual move.
 572                 $mp = new MovePage( $ot, $nt );
 573                 $valid = $mp->isValidMove();
 574                 if ( !$valid->isOK() ) {
 575                         $this->showForm( $valid->getErrorsArray() );
 576                         return;
 577                 }
 578
 579                 $permStatus = $mp->checkPermissions( $user, $this->reason );
 580                 if ( !$permStatus->isOK() ) {
 581                         $this->showForm( $permStatus->getErrorsArray() );
 582                         return;
 583                 }
 584
 585                 $status = $mp->move( $user, $this->reason, $createRedirect );
 586                 if ( !$status->isOK() ) {
 587                         $this->showForm( $status->getErrorsArray() );
 588                         return;
 589                 }
 590
 591                 if ( $this->getConfig()->get( 'FixDoubleRedirects' ) && $this->fixRedirects ) {
 592                         DoubleRedirectJob::fixRedirects( 'move', $ot, $nt );
 593                 }
 594
 595                 $out = $this->getOutput();
 596                 $out->setPageTitle( $this->msg( 'pagemovedsub' ) );
 597
 598                 $oldLink = Linker::link(
 599                         $ot,
 600                         null,
 601                         array( 'id' => 'movepage-oldlink' ),
 602                         array( 'redirect' => 'no' )
 603                 );
 604                 $newLink = Linker::linkKnown(
 605                         $nt,
 606                         null,
 607                         array( 'id' => 'movepage-newlink' )
 608                 );
 609                 $oldText = $ot->getPrefixedText();
 610                 $newText = $nt->getPrefixedText();
 611
 612                 if ( $ot->exists() ) {
 613                         //NOTE: we assume that if the old title exists, it's because it was re-created as
 614                         // a redirect to the new title. This is not safe, but what we did before was
 615                         // even worse: we just determined whether a redirect should have been created,
 616                         // and reported that it was created if it should have, without any checks.
 617                         // Also note that isRedirect() is unreliable because of bug 37209.
 618                         $msgName = 'movepage-moved-redirect';
 619                 } else {
 620                         $msgName = 'movepage-moved-noredirect';
 621                 }
 622
 623                 $out->addHTML( $this->msg( 'movepage-moved' )->rawParams( $oldLink,
 624                         $newLink )->params( $oldText, $newText )->parseAsBlock() );
 625                 $out->addWikiMsg( $msgName );
 626
 627                 Hooks::run( 'SpecialMovepageAfterMove', array( &$this, &$ot, &$nt ) );
 628
 629                 # Now we move extra pages we've been asked to move: subpages and talk
 630                 # pages.  First, if the old page or the new page is a talk page, we
 631                 # can't move any talk pages: cancel that.
 632                 if ( $ot->isTalkPage() || $nt->isTalkPage() ) {
 633                         $this->moveTalk = false;
 634                 }
 635
 636                 if ( count( $ot->getUserPermissionsErrors( 'move-subpages', $user ) ) ) {
 637                         $this->moveSubpages = false;
 638                 }
 639
 640                 # Next make a list of id's.  This might be marginally less efficient
 641                 # than a more direct method, but this is not a highly performance-cri-
 642                 # tical code path and readable code is more important here.
 643                 #
 644                 # Note: this query works nicely on MySQL 5, but the optimizer in MySQL
 645                 # 4 might get confused.  If so, consider rewriting as a UNION.
 646                 #
 647                 # If the target namespace doesn't allow subpages, moving with subpages
 648                 # would mean that you couldn't move them back in one operation, which
 649                 # is bad.
 650                 # @todo FIXME: A specific error message should be given in this case.
 651
 652                 // @todo FIXME: Use Title::moveSubpages() here
 653                 $dbr = wfGetDB( DB_MASTER );
 654                 if ( $this->moveSubpages && (
 655                         MWNamespace::hasSubpages( $nt->getNamespace() ) || (
 656                                 $this->moveTalk
 657                                         && MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() )
 658                         )
 659                 ) ) {
 660                         $conds = array(
 661                                 'page_title' . $dbr->buildLike( $ot->getDBkey() . '/', $dbr->anyString() )
 662                                         . ' OR page_title = ' . $dbr->addQuotes( $ot->getDBkey() )
 663                         );
 664                         $conds['page_namespace'] = array();
 665                         if ( MWNamespace::hasSubpages( $nt->getNamespace() ) ) {
 666                                 $conds['page_namespace'][] = $ot->getNamespace();
 667                         }
 668                         if ( $this->moveTalk &&
 669                                 MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() )
 670                         ) {
 671                                 $conds['page_namespace'][] = $ot->getTalkPage()->getNamespace();
 672                         }
 673                 } elseif ( $this->moveTalk ) {
 674                         $conds = array(
 675                                 'page_namespace' => $ot->getTalkPage()->getNamespace(),
 676                                 'page_title' => $ot->getDBkey()
 677                         );
 678                 } else {
 679                         # Skip the query
 680                         $conds = null;
 681                 }
 682
 683                 $extraPages = array();
 684                 if ( !is_null( $conds ) ) {
 685                         $extraPages = TitleArray::newFromResult(
 686                                 $dbr->select( 'page',
 687                                         array( 'page_id', 'page_namespace', 'page_title' ),
 688                                         $conds,
 689                                         __METHOD__
 690                                 )
 691                         );
 692                 }
 693
 694                 $extraOutput = array();
 695                 $count = 1;
 696                 foreach ( $extraPages as $oldSubpage ) {
 697                         if ( $ot->equals( $oldSubpage ) || $nt->equals( $oldSubpage ) ) {
 698                                 # Already did this one.
 699                                 continue;
 700                         }
 701
 702                         $newPageName = preg_replace(
 703                                 '#^' . preg_quote( $ot->getDBkey(), '#' ) . '#',
 704                                 StringUtils::escapeRegexReplacement( $nt->getDBkey() ), # bug 21234
 705                                 $oldSubpage->getDBkey()
 706                         );
 707
 708                         if ( $oldSubpage->isSubpage() && ( $ot->isTalkPage() xor $nt->isTalkPage() ) ) {
 709                                 // Moving a subpage from a subject namespace to a talk namespace or vice-versa
 710                                 $newNs = $nt->getNamespace();
 711                         } elseif ( $oldSubpage->isTalkPage() ) {
 712                                 $newNs = $nt->getTalkPage()->getNamespace();
 713                         } else {
 714                                 $newNs = $nt->getSubjectPage()->getNamespace();
 715                         }
 716
 717                         # Bug 14385: we need makeTitleSafe because the new page names may
 718                         # be longer than 255 characters.
 719                         $newSubpage = Title::makeTitleSafe( $newNs, $newPageName );
 720                         if ( !$newSubpage ) {
 721                                 $oldLink = Linker::linkKnown( $oldSubpage );
 722                                 $extraOutput[] = $this->msg( 'movepage-page-unmoved' )->rawParams( $oldLink )
 723                                         ->params( Title::makeName( $newNs, $newPageName ) )->escaped();
 724                                 continue;
 725                         }
 726
 727                         # This was copy-pasted from Renameuser, bleh.
 728                         if ( $newSubpage->exists() && !$oldSubpage->isValidMoveTarget( $newSubpage ) ) {
 729                                 $link = Linker::linkKnown( $newSubpage );
 730                                 $extraOutput[] = $this->msg( 'movepage-page-exists' )->rawParams( $link )->escaped();
 731                         } else {
 732                                 $success = $oldSubpage->moveTo( $newSubpage, true, $this->reason, $createRedirect );
 733
 734                                 if ( $success === true ) {
 735                                         if ( $this->fixRedirects ) {
 736                                                 DoubleRedirectJob::fixRedirects( 'move', $oldSubpage, $newSubpage );
 737                                         }
 738                                         $oldLink = Linker::link(
 739                                                 $oldSubpage,
 740                                                 null,
 741                                                 array(),
 742                                                 array( 'redirect' => 'no' )
 743                                         );
 744
 745                                         $newLink = Linker::linkKnown( $newSubpage );
 746                                         $extraOutput[] = $this->msg( 'movepage-page-moved' )
 747                                                 ->rawParams( $oldLink, $newLink )->escaped();
 748                                         ++$count;
 749
 750                                         $maximumMovedPages = $this->getConfig()->get( 'MaximumMovedPages' );
 751                                         if ( $count >= $maximumMovedPages ) {
 752                                                 $extraOutput[] = $this->msg( 'movepage-max-pages' )
 753                                                         ->numParams( $maximumMovedPages )->escaped();
 754                                                 break;
 755                                         }
 756                                 } else {
 757                                         $oldLink = Linker::linkKnown( $oldSubpage );
 758                                         $newLink = Linker::link( $newSubpage );
 759                                         $extraOutput[] = $this->msg( 'movepage-page-unmoved' )
 760                                                 ->rawParams( $oldLink, $newLink )->escaped();
 761                                 }
 762                         }
 763                 }
 764
 765                 if ( $extraOutput !== array() ) {
 766                         $out->addHTML( "<ul>\n<li>" . implode( "</li>\n<li>", $extraOutput ) . "</li>\n</ul>" );
 767                 }
 768
 769                 # Deal with watches (we don't watch subpages)
 770                 WatchAction::doWatchOrUnwatch( $this->watch, $ot, $user );
 771                 WatchAction::doWatchOrUnwatch( $this->watch, $nt, $user );
 772         }
 773
 774         function showLogFragment( $title ) {
 775                 $moveLogPage = new LogPage( 'move' );
 776                 $out = $this->getOutput();
 777                 $out->addHTML( Xml::element( 'h2', null, $moveLogPage->getName()->text() ) );
 778                 LogEventsList::showLogExtract( $out, 'move', $title );
 779         }
 780
 781         function showSubpages( $title ) {
 782                 if ( !MWNamespace::hasSubpages( $title->getNamespace() ) ) {
 783                         return;
 784                 }
 785
 786                 $subpages = $title->getSubpages();
 787                 $count = $subpages instanceof TitleArray ? $subpages->count() : 0;
 788
 789                 $out = $this->getOutput();
 790                 $out->wrapWikiMsg( '== $1 ==', array( 'movesubpage', $count ) );
 791
 792                 # No subpages.
 793                 if ( $count == 0 ) {
 794                         $out->addWikiMsg( 'movenosubpage' );
 795
 796                         return;
 797                 }
 798
 799                 $out->addWikiMsg( 'movesubpagetext', $this->getLanguage()->formatNum( $count ) );
 800                 $out->addHTML( "<ul>\n" );
 801
 802                 foreach ( $subpages as $subpage ) {
 803                         $link = Linker::link( $subpage );
 804                         $out->addHTML( "<li>$link</li>\n" );
 805                 }
 806                 $out->addHTML( "</ul>\n" );
 807         }
 808
 809         protected function getGroupName() {
 810                 return 'pagetools';
 811         }
 812 }