includes/specials/SpecialMovepage.php

   1 <?php
   2 /**
   3  * Implements Special:Movepage
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * A special page that allows users to change page titles
  26  *
  27  * @ingroup SpecialPage
  28  */
  29 class MovePageForm extends UnlistedSpecialPage {
  30         /**
  31          * Objects
  32          * @var Title
  33          */
  34         var $oldTitle, $newTitle;
  35         // Text input
  36         var $reason;
  37         // Checks
  38         var $moveTalk, $deleteAndMove, $moveSubpages, $fixRedirects, $leaveRedirect, $moveOverShared;
  39
  40         private $watch = false;
  41
  42         public function __construct() {
  43                 parent::__construct( 'Movepage' );
  44         }
  45
  46         public function execute( $par ) {
  47                 $this->checkReadOnly();
  48
  49                 $this->setHeaders();
  50                 $this->outputHeader();
  51
  52                 $request = $this->getRequest();
  53                 $target = !is_null( $par ) ? $par : $request->getVal( 'target' );
  54
  55                 // Yes, the use of getVal() and getText() is wanted, see bug 20365
  56
  57                 $oldTitleText = $request->getVal( 'wpOldTitle', $target );
  58                 $this->oldTitle = Title::newFromText( $oldTitleText );
  59
  60                 if ( is_null( $this->oldTitle ) ) {
  61                         throw new ErrorPageError( 'notargettitle', 'notargettext' );
  62                 }
  63                 if ( !$this->oldTitle->exists() ) {
  64                         throw new ErrorPageError( 'nopagetitle', 'nopagetext' );
  65                 }
  66
  67                 $newTitleTextMain = $request->getText( 'wpNewTitleMain' );
  68                 $newTitleTextNs = $request->getInt( 'wpNewTitleNs', $this->oldTitle->getNamespace() );
  69                 // Backwards compatibility for forms submitting here from other sources
  70                 // which is more common than it should be..
  71                 $newTitleText_bc = $request->getText( 'wpNewTitle' );
  72                 $this->newTitle = strlen( $newTitleText_bc ) > 0
  73                         ? Title::newFromText( $newTitleText_bc )
  74                         : Title::makeTitleSafe( $newTitleTextNs, $newTitleTextMain );
  75
  76                 $user = $this->getUser();
  77
  78                 # Check rights
  79                 $permErrors = $this->oldTitle->getUserPermissionsErrors( 'move', $user );
  80                 if ( count( $permErrors ) ) {
  81                         // Auto-block user's IP if the account was "hard" blocked
  82                         $user->spreadAnyEditBlock();
  83                         throw new PermissionsError( 'move', $permErrors );
  84                 }
  85
  86                 $def = !$request->wasPosted();
  87
  88                 $this->reason = $request->getText( 'wpReason' );
  89                 $this->moveTalk = $request->getBool( 'wpMovetalk', $def );
  90                 $this->fixRedirects = $request->getBool( 'wpFixRedirects', $def );
  91                 $this->leaveRedirect = $request->getBool( 'wpLeaveRedirect', $def );
  92                 $this->moveSubpages = $request->getBool( 'wpMovesubpages', false );
  93                 $this->deleteAndMove = $request->getBool( 'wpDeleteAndMove' ) && $request->getBool( 'wpConfirm' );
  94                 $this->moveOverShared = $request->getBool( 'wpMoveOverSharedFile', false );
  95                 $this->watch = $request->getCheck( 'wpWatch' ) && $user->isLoggedIn();
  96
  97                 if ( 'submit' == $request->getVal( 'action' ) && $request->wasPosted()
  98                         && $user->matchEditToken( $request->getVal( 'wpEditToken' ) )
  99                 ) {
 100                         $this->doSubmit();
 101                 } else {
 102                         $this->showForm( array() );
 103                 }
 104         }
 105
 106         /**
 107          * Show the form
 108          *
 109          * @param array $err error messages. Each item is an error message.
 110          *    It may either be a string message name or array message name and
 111          *    parameters, like the second argument to OutputPage::wrapWikiMsg().
 112          */
 113         function showForm( $err ) {
 114                 global $wgContLang, $wgFixDoubleRedirects, $wgMaximumMovedPages;
 115
 116                 $this->getSkin()->setRelevantTitle( $this->oldTitle );
 117
 118                 $oldTitleLink = Linker::link( $this->oldTitle );
 119
 120                 $out = $this->getOutput();
 121                 $out->setPageTitle( $this->msg( 'move-page', $this->oldTitle->getPrefixedText() ) );
 122                 $out->addModules( 'mediawiki.special.movePage' );
 123
 124                 $newTitle = $this->newTitle;
 125
 126                 if ( !$newTitle ) {
 127                         # Show the current title as a default
 128                         # when the form is first opened.
 129                         $newTitle = $this->oldTitle;
 130                 } elseif ( !count( $err ) ) {
 131                         # If a title was supplied, probably from the move log revert
 132                         # link, check for validity. We can then show some diagnostic
 133                         # information and save a click.
 134                         $newerr = $this->oldTitle->isValidMoveOperation( $newTitle );
 135                         if ( is_array( $newerr ) ) {
 136                                 $err = $newerr;
 137                         }
 138                 }
 139
 140                 $user = $this->getUser();
 141
 142                 if ( count( $err ) == 1 && isset( $err[0][0] ) && $err[0][0] == 'articleexists'
 143                         && $newTitle->quickUserCan( 'delete', $user )
 144                 ) {
 145                         $out->addWikiMsg( 'delete_and_move_text', $newTitle->getPrefixedText() );
 146                         $movepagebtn = $this->msg( 'delete_and_move' )->text();
 147                         $submitVar = 'wpDeleteAndMove';
 148                         $confirm = "
 149                                 <tr>
 150                                         <td></td>
 151                                         <td class='mw-input'>" .
 152                                 Xml::checkLabel(
 153                                         $this->msg( 'delete_and_move_confirm' )->text(),
 154                                         'wpConfirm',
 155                                         'wpConfirm'
 156                                 ) .
 157                                 "</td>
 158                                 </tr>";
 159                         $err = array();
 160                 } else {
 161                         if ( $this->oldTitle->getNamespace() == NS_USER && !$this->oldTitle->isSubpage() ) {
 162                                 $out->wrapWikiMsg(
 163                                         "<div class=\"error mw-moveuserpage-warning\">\n$1\n</div>",
 164                                         'moveuserpage-warning'
 165                                 );
 166                         }
 167
 168                         $out->addWikiMsg( $wgFixDoubleRedirects ?
 169                                 'movepagetext' :
 170                                 'movepagetext-noredirectfixer'
 171                         );
 172                         $movepagebtn = $this->msg( 'movepagebtn' )->text();
 173                         $submitVar = 'wpMove';
 174                         $confirm = false;
 175                 }
 176
 177                 if ( count( $err ) == 1 && isset( $err[0][0] ) && $err[0][0] == 'file-exists-sharedrepo'
 178                         && $user->isAllowed( 'reupload-shared' )
 179                 ) {
 180                         $out->addWikiMsg( 'move-over-sharedrepo', $newTitle->getPrefixedText() );
 181                         $submitVar = 'wpMoveOverSharedFile';
 182                         $err = array();
 183                 }
 184
 185                 $oldTalk = $this->oldTitle->getTalkPage();
 186                 $oldTitleSubpages = $this->oldTitle->hasSubpages();
 187                 $oldTitleTalkSubpages = $this->oldTitle->getTalkPage()->hasSubpages();
 188
 189                 $canMoveSubpage = ( $oldTitleSubpages || $oldTitleTalkSubpages ) &&
 190                         !count( $this->oldTitle->getUserPermissionsErrors( 'move-subpages', $user ) );
 191
 192                 # We also want to be able to move assoc. subpage talk-pages even if base page
 193                 # has no associated talk page, so || with $oldTitleTalkSubpages.
 194                 $considerTalk = !$this->oldTitle->isTalkPage() &&
 195                         ( $oldTalk->exists()
 196                                 || ( $oldTitleTalkSubpages && $canMoveSubpage ) );
 197
 198                 $dbr = wfGetDB( DB_SLAVE );
 199                 if ( $wgFixDoubleRedirects ) {
 200                         $hasRedirects = $dbr->selectField( 'redirect', '1',
 201                                 array(
 202                                         'rd_namespace' => $this->oldTitle->getNamespace(),
 203                                         'rd_title' => $this->oldTitle->getDBkey(),
 204                                 ), __METHOD__ );
 205                 } else {
 206                         $hasRedirects = false;
 207                 }
 208
 209                 if ( $considerTalk ) {
 210                         $out->addWikiMsg( 'movepagetalktext' );
 211                 }
 212
 213                 if ( count( $err ) ) {
 214                         $out->addHTML( "<div class='error'>\n" );
 215                         $action_desc = $this->msg( 'action-move' )->plain();
 216                         $out->addWikiMsg( 'permissionserrorstext-withaction', count( $err ), $action_desc );
 217
 218                         if ( count( $err ) == 1 ) {
 219                                 $errMsg = $err[0];
 220                                 $errMsgName = array_shift( $errMsg );
 221
 222                                 if ( $errMsgName == 'hookaborted' ) {
 223                                         $out->addHTML( "<p>{$errMsg[0]}</p>\n" );
 224                                 } else {
 225                                         $out->addWikiMsgArray( $errMsgName, $errMsg );
 226                                 }
 227                         } else {
 228                                 $errStr = array();
 229
 230                                 foreach ( $err as $errMsg ) {
 231                                         if ( $errMsg[0] == 'hookaborted' ) {
 232                                                 $errStr[] = $errMsg[1];
 233                                         } else {
 234                                                 $errMsgName = array_shift( $errMsg );
 235                                                 $errStr[] = $this->msg( $errMsgName, $errMsg )->parse();
 236                                         }
 237                                 }
 238
 239                                 $out->addHTML( '<ul><li>' . implode( "</li>\n<li>", $errStr ) . "</li></ul>\n" );
 240                         }
 241                         $out->addHTML( "</div>\n" );
 242                 }
 243
 244                 if ( $this->oldTitle->isProtected( 'move' ) ) {
 245                         # Is the title semi-protected?
 246                         if ( $this->oldTitle->isSemiProtected( 'move' ) ) {
 247                                 $noticeMsg = 'semiprotectedpagemovewarning';
 248                                 $classes[] = 'mw-textarea-sprotected';
 249                         } else {
 250                                 # Then it must be protected based on static groups (regular)
 251                                 $noticeMsg = 'protectedpagemovewarning';
 252                                 $classes[] = 'mw-textarea-protected';
 253                         }
 254                         $out->addHTML( "<div class='mw-warning-with-logexcerpt'>\n" );
 255                         $out->addWikiMsg( $noticeMsg );
 256                         LogEventsList::showLogExtract(
 257                                 $out,
 258                                 'protect',
 259                                 $this->oldTitle,
 260                                 '',
 261                                 array( 'lim' => 1 )
 262                         );
 263                         $out->addHTML( "</div>\n" );
 264                 }
 265
 266                 // Byte limit (not string length limit) for wpReason and wpNewTitleMain
 267                 // is enforced in the mediawiki.special.movePage module
 268
 269                 $immovableNamespaces = array();
 270
 271                 foreach ( array_keys( $this->getLanguage()->getNamespaces() ) as $nsId ) {
 272                         if ( !MWNamespace::isMovable( $nsId ) ) {
 273                                 $immovableNamespaces[] = $nsId;
 274                         }
 275                 }
 276
 277                 $handler = ContentHandler::getForTitle( $this->oldTitle );
 278
 279                 $out->addHTML(
 280                         Xml::openElement(
 281                                 'form',
 282                                 array(
 283                                         'method' => 'post',
 284                                         'action' => $this->getPageTitle()->getLocalURL( 'action=submit' ),
 285                                         'id' => 'movepage'
 286                                 )
 287                         ) .
 288                                 Xml::openElement( 'fieldset' ) .
 289                                 Xml::element( 'legend', null, $this->msg( 'move-page-legend' )->text() ) .
 290                                 Xml::openElement( 'table', array( 'id' => 'mw-movepage-table' ) ) .
 291                                 "<tr>
 292                                 <td class='mw-label'>" .
 293                                 $this->msg( 'movearticle' )->escaped() .
 294                                 "</td>
 295                                 <td class='mw-input'>
 296                                         <strong>{$oldTitleLink}</strong>
 297                                 </td>
 298                         </tr>
 299                         <tr>
 300                                 <td class='mw-label'>" .
 301                                 Xml::label( $this->msg( 'newtitle' )->text(), 'wpNewTitleMain' ) .
 302                                 "</td>
 303                                 <td class='mw-input'>" .
 304                                 Html::namespaceSelector(
 305                                         array(
 306                                                 'selected' => $newTitle->getNamespace(),
 307                                                 'exclude' => $immovableNamespaces
 308                                         ),
 309                                         array( 'name' => 'wpNewTitleNs', 'id' => 'wpNewTitleNs' )
 310                                 ) .
 311                                 Xml::input(
 312                                         'wpNewTitleMain',
 313                                         60,
 314                                         $wgContLang->recodeForEdit( $newTitle->getText() ),
 315                                         array(
 316                                                 'type' => 'text',
 317                                                 'id' => 'wpNewTitleMain',
 318                                                 'maxlength' => 255
 319                                         )
 320                                 ) .
 321                                 Html::hidden( 'wpOldTitle', $this->oldTitle->getPrefixedText() ) .
 322                                 "</td>
 323                         </tr>
 324                         <tr>
 325                                 <td class='mw-label'>" .
 326                                 Xml::label( $this->msg( 'movereason' )->text(), 'wpReason' ) .
 327                                 "</td>
 328                                 <td class='mw-input'>" .
 329                                         Xml::input( 'wpReason', 60, $this->reason, array(
 330                                                 'type' => 'text',
 331                                                 'id' => 'wpReason',
 332                                                 'maxlength' => 200,
 333                                         ) ) .
 334                                 "</td>
 335                         </tr>"
 336                 );
 337
 338                 if ( $considerTalk ) {
 339                         $out->addHTML( "
 340                                 <tr>
 341                                         <td></td>
 342                                         <td class='mw-input'>" .
 343                                         Xml::checkLabel(
 344                                                 $this->msg( 'movetalk' )->text(),
 345                                                 'wpMovetalk',
 346                                                 'wpMovetalk',
 347                                                 $this->moveTalk
 348                                         ) .
 349                                         "</td>
 350                                 </tr>"
 351                         );
 352                 }
 353
 354                 if ( $user->isAllowed( 'suppressredirect' ) ) {
 355                         if ( $handler->supportsRedirects() ) {
 356                                 $isChecked = $this->leaveRedirect;
 357                                 $options = array();
 358                         } else {
 359                                 $isChecked = false;
 360                                 $options = array(
 361                                         'disabled' => 'disabled'
 362                                 );
 363                         }
 364                         $out->addHTML( "
 365                                 <tr>
 366                                         <td></td>
 367                                         <td class='mw-input' >" .
 368                                         Xml::checkLabel(
 369                                                 $this->msg( 'move-leave-redirect' )->text(),
 370                                                 'wpLeaveRedirect',
 371                                                 'wpLeaveRedirect',
 372                                                 $isChecked,
 373                                                 $options
 374                                         ) .
 375                                         "</td>
 376                                 </tr>"
 377                         );
 378                 }
 379
 380                 if ( $hasRedirects ) {
 381                         $out->addHTML( "
 382                                 <tr>
 383                                         <td></td>
 384                                         <td class='mw-input' >" .
 385                                         Xml::checkLabel(
 386                                                 $this->msg( 'fix-double-redirects' )->text(),
 387                                                 'wpFixRedirects',
 388                                                 'wpFixRedirects',
 389                                                 $this->fixRedirects
 390                                         ) .
 391                                         "</td>
 392                                 </tr>"
 393                         );
 394                 }
 395
 396                 if ( $canMoveSubpage ) {
 397                         $out->addHTML( "
 398                                 <tr>
 399                                         <td></td>
 400                                         <td class=\"mw-input\">" .
 401                                         Xml::check(
 402                                                 'wpMovesubpages',
 403                                                 # Don't check the box if we only have talk subpages to
 404                                                 # move and we aren't moving the talk page.
 405                                                 $this->moveSubpages && ( $this->oldTitle->hasSubpages() || $this->moveTalk ),
 406                                                 array( 'id' => 'wpMovesubpages' )
 407                                         ) . '&#160;' .
 408                                         Xml::tags( 'label', array( 'for' => 'wpMovesubpages' ),
 409                                                 $this->msg(
 410                                                         ( $this->oldTitle->hasSubpages()
 411                                                                 ? 'move-subpages'
 412                                                                 : 'move-talk-subpages' )
 413                                                 )->numParams( $wgMaximumMovedPages )->params( $wgMaximumMovedPages )->parse()
 414                                         ) .
 415                                         "</td>
 416                                 </tr>"
 417                         );
 418                 }
 419
 420                 $watchChecked = $user->isLoggedIn() && ( $this->watch || $user->getBoolOption( 'watchmoves' )
 421                         || $user->isWatched( $this->oldTitle ) );
 422                 # Don't allow watching if user is not logged in
 423                 if ( $user->isLoggedIn() ) {
 424                         $out->addHTML( "
 425                         <tr>
 426                                 <td></td>
 427                                 <td class='mw-input'>" .
 428                                 Xml::checkLabel(
 429                                         $this->msg( 'move-watch' )->text(),
 430                                         'wpWatch',
 431                                         'watch',
 432                                         $watchChecked
 433                                 ) .
 434                                 "</td>
 435                         </tr>" );
 436                 }
 437
 438                 $out->addHTML( "
 439                                 {$confirm}
 440                         <tr>
 441                                 <td>&#160;</td>
 442                                 <td class='mw-submit'>" .
 443                                 Xml::submitButton( $movepagebtn, array( 'name' => $submitVar ) ) .
 444                                 "</td>
 445                         </tr>" .
 446                                 Xml::closeElement( 'table' ) .
 447                                 Html::hidden( 'wpEditToken', $user->getEditToken() ) .
 448                                 Xml::closeElement( 'fieldset' ) .
 449                                 Xml::closeElement( 'form' ) .
 450                                 "\n"
 451                 );
 452
 453                 $this->showLogFragment( $this->oldTitle );
 454                 $this->showSubpages( $this->oldTitle );
 455         }
 456
 457         function doSubmit() {
 458                 global $wgMaximumMovedPages, $wgFixDoubleRedirects;
 459
 460                 $user = $this->getUser();
 461
 462                 if ( $user->pingLimiter( 'move' ) ) {
 463                         throw new ThrottledError;
 464                 }
 465
 466                 $ot = $this->oldTitle;
 467                 $nt = $this->newTitle;
 468
 469                 # don't allow moving to pages with # in
 470                 if ( !$nt || $nt->hasFragment() ) {
 471                         $this->showForm( array( array( 'badtitletext' ) ) );
 472
 473                         return;
 474                 }
 475
 476                 # Show a warning if the target file exists on a shared repo
 477                 if ( $nt->getNamespace() == NS_FILE
 478                         && !( $this->moveOverShared && $user->isAllowed( 'reupload-shared' ) )
 479                         && !RepoGroup::singleton()->getLocalRepo()->findFile( $nt )
 480                         && wfFindFile( $nt )
 481                 ) {
 482                         $this->showForm( array( array( 'file-exists-sharedrepo' ) ) );
 483
 484                         return;
 485                 }
 486
 487                 # Delete to make way if requested
 488                 if ( $this->deleteAndMove ) {
 489                         $permErrors = $nt->getUserPermissionsErrors( 'delete', $user );
 490                         if ( count( $permErrors ) ) {
 491                                 # Only show the first error
 492                                 $this->showForm( $permErrors );
 493
 494                                 return;
 495                         }
 496
 497                         $reason = $this->msg( 'delete_and_move_reason', $ot )->inContentLanguage()->text();
 498
 499                         // Delete an associated image if there is
 500                         if ( $nt->getNamespace() == NS_FILE ) {
 501                                 $file = wfLocalFile( $nt );
 502                                 if ( $file->exists() ) {
 503                                         $file->delete( $reason, false );
 504                                 }
 505                         }
 506
 507                         $error = ''; // passed by ref
 508                         $page = WikiPage::factory( $nt );
 509                         $deleteStatus = $page->doDeleteArticleReal( $reason, false, 0, true, $error, $user );
 510                         if ( !$deleteStatus->isGood() ) {
 511                                 $this->showForm( $deleteStatus->getErrorsArray() );
 512
 513                                 return;
 514                         }
 515                 }
 516
 517                 $handler = ContentHandler::getForTitle( $ot );
 518
 519                 if ( !$handler->supportsRedirects() ) {
 520                         $createRedirect = false;
 521                 } elseif ( $user->isAllowed( 'suppressredirect' ) ) {
 522                         $createRedirect = $this->leaveRedirect;
 523                 } else {
 524                         $createRedirect = true;
 525                 }
 526
 527                 # Do the actual move.
 528                 $error = $ot->moveTo( $nt, true, $this->reason, $createRedirect );
 529                 if ( $error !== true ) {
 530                         $this->showForm( $error );
 531
 532                         return;
 533                 }
 534
 535                 if ( $wgFixDoubleRedirects && $this->fixRedirects ) {
 536                         DoubleRedirectJob::fixRedirects( 'move', $ot, $nt );
 537                 }
 538
 539                 $out = $this->getOutput();
 540                 $out->setPageTitle( $this->msg( 'pagemovedsub' ) );
 541
 542                 $oldLink = Linker::link(
 543                         $ot,
 544                         null,
 545                         array(),
 546                         array( 'redirect' => 'no' )
 547                 );
 548                 $newLink = Linker::linkKnown( $nt );
 549                 $oldText = $ot->getPrefixedText();
 550                 $newText = $nt->getPrefixedText();
 551
 552                 if ( $ot->exists() ) {
 553                         //NOTE: we assume that if the old title exists, it's because it was re-created as
 554                         // a redirect to the new title. This is not safe, but what we did before was
 555                         // even worse: we just determined whether a redirect should have been created,
 556                         // and reported that it was created if it should have, without any checks.
 557                         // Also note that isRedirect() is unreliable because of bug 37209.
 558                         $msgName = 'movepage-moved-redirect';
 559                 } else {
 560                         $msgName = 'movepage-moved-noredirect';
 561                 }
 562
 563                 $out->addHTML( $this->msg( 'movepage-moved' )->rawParams( $oldLink,
 564                         $newLink )->params( $oldText, $newText )->parseAsBlock() );
 565                 $out->addWikiMsg( $msgName );
 566
 567                 wfRunHooks( 'SpecialMovepageAfterMove', array( &$this, &$ot, &$nt ) );
 568
 569                 # Now we move extra pages we've been asked to move: subpages and talk
 570                 # pages.  First, if the old page or the new page is a talk page, we
 571                 # can't move any talk pages: cancel that.
 572                 if ( $ot->isTalkPage() || $nt->isTalkPage() ) {
 573                         $this->moveTalk = false;
 574                 }
 575
 576                 if ( count( $ot->getUserPermissionsErrors( 'move-subpages', $user ) ) ) {
 577                         $this->moveSubpages = false;
 578                 }
 579
 580                 # Next make a list of id's.  This might be marginally less efficient
 581                 # than a more direct method, but this is not a highly performance-cri-
 582                 # tical code path and readable code is more important here.
 583                 #
 584                 # Note: this query works nicely on MySQL 5, but the optimizer in MySQL
 585                 # 4 might get confused.  If so, consider rewriting as a UNION.
 586                 #
 587                 # If the target namespace doesn't allow subpages, moving with subpages
 588                 # would mean that you couldn't move them back in one operation, which
 589                 # is bad.
 590                 # @todo FIXME: A specific error message should be given in this case.
 591
 592                 // @todo FIXME: Use Title::moveSubpages() here
 593                 $dbr = wfGetDB( DB_MASTER );
 594                 if ( $this->moveSubpages && (
 595                         MWNamespace::hasSubpages( $nt->getNamespace() ) || (
 596                                 $this->moveTalk
 597                                         && MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() )
 598                         )
 599                 ) ) {
 600                         $conds = array(
 601                                 'page_title' . $dbr->buildLike( $ot->getDBkey() . '/', $dbr->anyString() )
 602                                         . ' OR page_title = ' . $dbr->addQuotes( $ot->getDBkey() )
 603                         );
 604                         $conds['page_namespace'] = array();
 605                         if ( MWNamespace::hasSubpages( $nt->getNamespace() ) ) {
 606                                 $conds['page_namespace'][] = $ot->getNamespace();
 607                         }
 608                         if ( $this->moveTalk &&
 609                                 MWNamespace::hasSubpages( $nt->getTalkPage()->getNamespace() )
 610                         ) {
 611                                 $conds['page_namespace'][] = $ot->getTalkPage()->getNamespace();
 612                         }
 613                 } elseif ( $this->moveTalk ) {
 614                         $conds = array(
 615                                 'page_namespace' => $ot->getTalkPage()->getNamespace(),
 616                                 'page_title' => $ot->getDBkey()
 617                         );
 618                 } else {
 619                         # Skip the query
 620                         $conds = null;
 621                 }
 622
 623                 $extraPages = array();
 624                 if ( !is_null( $conds ) ) {
 625                         $extraPages = TitleArray::newFromResult(
 626                                 $dbr->select( 'page',
 627                                         array( 'page_id', 'page_namespace', 'page_title' ),
 628                                         $conds,
 629                                         __METHOD__
 630                                 )
 631                         );
 632                 }
 633
 634                 $extraOutput = array();
 635                 $count = 1;
 636                 foreach ( $extraPages as $oldSubpage ) {
 637                         if ( $ot->equals( $oldSubpage ) || $nt->equals( $oldSubpage ) ) {
 638                                 # Already did this one.
 639                                 continue;
 640                         }
 641
 642                         $newPageName = preg_replace(
 643                                 '#^' . preg_quote( $ot->getDBkey(), '#' ) . '#',
 644                                 StringUtils::escapeRegexReplacement( $nt->getDBkey() ), # bug 21234
 645                                 $oldSubpage->getDBkey()
 646                         );
 647
 648                         if ( $oldSubpage->isTalkPage() ) {
 649                                 $newNs = $nt->getTalkPage()->getNamespace();
 650                         } else {
 651                                 $newNs = $nt->getSubjectPage()->getNamespace();
 652                         }
 653
 654                         # Bug 14385: we need makeTitleSafe because the new page names may
 655                         # be longer than 255 characters.
 656                         $newSubpage = Title::makeTitleSafe( $newNs, $newPageName );
 657                         if ( !$newSubpage ) {
 658                                 $oldLink = Linker::linkKnown( $oldSubpage );
 659                                 $extraOutput[] = $this->msg( 'movepage-page-unmoved' )->rawParams( $oldLink )
 660                                         ->params( Title::makeName( $newNs, $newPageName ) )->escaped();
 661                                 continue;
 662                         }
 663
 664                         # This was copy-pasted from Renameuser, bleh.
 665                         if ( $newSubpage->exists() && !$oldSubpage->isValidMoveTarget( $newSubpage ) ) {
 666                                 $link = Linker::linkKnown( $newSubpage );
 667                                 $extraOutput[] = $this->msg( 'movepage-page-exists' )->rawParams( $link )->escaped();
 668                         } else {
 669                                 $success = $oldSubpage->moveTo( $newSubpage, true, $this->reason, $createRedirect );
 670
 671                                 if ( $success === true ) {
 672                                         if ( $this->fixRedirects ) {
 673                                                 DoubleRedirectJob::fixRedirects( 'move', $oldSubpage, $newSubpage );
 674                                         }
 675                                         $oldLink = Linker::link(
 676                                                 $oldSubpage,
 677                                                 null,
 678                                                 array(),
 679                                                 array( 'redirect' => 'no' )
 680                                         );
 681
 682                                         $newLink = Linker::linkKnown( $newSubpage );
 683                                         $extraOutput[] = $this->msg( 'movepage-page-moved' )->rawParams( $oldLink, $newLink )->escaped();
 684                                         ++$count;
 685
 686                                         if ( $count >= $wgMaximumMovedPages ) {
 687                                                 $extraOutput[] = $this->msg( 'movepage-max-pages' )->numParams( $wgMaximumMovedPages )->escaped();
 688                                                 break;
 689                                         }
 690                                 } else {
 691                                         $oldLink = Linker::linkKnown( $oldSubpage );
 692                                         $newLink = Linker::link( $newSubpage );
 693                                         $extraOutput[] = $this->msg( 'movepage-page-unmoved' )->rawParams( $oldLink, $newLink )->escaped();
 694                                 }
 695                         }
 696                 }
 697
 698                 if ( $extraOutput !== array() ) {
 699                         $out->addHTML( "<ul>\n<li>" . implode( "</li>\n<li>", $extraOutput ) . "</li>\n</ul>" );
 700                 }
 701
 702                 # Deal with watches (we don't watch subpages)
 703                 WatchAction::doWatchOrUnwatch( $this->watch, $ot, $user );
 704                 WatchAction::doWatchOrUnwatch( $this->watch, $nt, $user );
 705         }
 706
 707         function showLogFragment( $title ) {
 708                 $moveLogPage = new LogPage( 'move' );
 709                 $out = $this->getOutput();
 710                 $out->addHTML( Xml::element( 'h2', null, $moveLogPage->getName()->text() ) );
 711                 LogEventsList::showLogExtract( $out, 'move', $title );
 712         }
 713
 714         function showSubpages( $title ) {
 715                 if ( !MWNamespace::hasSubpages( $title->getNamespace() ) ) {
 716                         return;
 717                 }
 718
 719                 $subpages = $title->getSubpages();
 720                 $count = $subpages instanceof TitleArray ? $subpages->count() : 0;
 721
 722                 $out = $this->getOutput();
 723                 $out->wrapWikiMsg( '== $1 ==', array( 'movesubpage', $count ) );
 724
 725                 # No subpages.
 726                 if ( $count == 0 ) {
 727                         $out->addWikiMsg( 'movenosubpage' );
 728
 729                         return;
 730                 }
 731
 732                 $out->addWikiMsg( 'movesubpagetext', $this->getLanguage()->formatNum( $count ) );
 733                 $out->addHTML( "<ul>\n" );
 734
 735                 foreach ( $subpages as $subpage ) {
 736                         $link = Linker::link( $subpage );
 737                         $out->addHTML( "<li>$link</li>\n" );
 738                 }
 739                 $out->addHTML( "</ul>\n" );
 740         }
 741
 742         protected function getGroupName() {
 743                 return 'pagetools';
 744         }
 745 }