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