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