includes/EditPage.php

   1 <?php
   2 /**
   3  * Contains the EditPage class
   4  */
   5
   6 /**
   7  * The edit page/HTML interface (split from Article)
   8  * The actual database and text munging is still in Article,
   9  * but it should get easier to call those from alternate
  10  * interfaces.
  11  *
  12  * EditPage cares about two distinct titles:
  13  * $wgTitle is the page that forms submit to, links point to,
  14  * redirects go to, etc. $this->mTitle (as well as $mArticle) is the
  15  * page in the database that is actually being edited. These are
  16  * usually the same, but they are now allowed to be different.
  17  */
  18 class EditPage {
  19         const AS_SUCCESS_UPDATE                 = 200;
  20         const AS_SUCCESS_NEW_ARTICLE            = 201;
  21         const AS_HOOK_ERROR                     = 210;
  22         const AS_FILTERING                      = 211;
  23         const AS_HOOK_ERROR_EXPECTED            = 212;
  24         const AS_BLOCKED_PAGE_FOR_USER          = 215;
  25         const AS_CONTENT_TOO_BIG                = 216;
  26         const AS_USER_CANNOT_EDIT               = 217;
  27         const AS_READ_ONLY_PAGE_ANON            = 218;
  28         const AS_READ_ONLY_PAGE_LOGGED          = 219;
  29         const AS_READ_ONLY_PAGE                 = 220;
  30         const AS_RATE_LIMITED                   = 221;
  31         const AS_ARTICLE_WAS_DELETED            = 222;
  32         const AS_NO_CREATE_PERMISSION           = 223;
  33         const AS_BLANK_ARTICLE                  = 224;
  34         const AS_CONFLICT_DETECTED              = 225;
  35         const AS_SUMMARY_NEEDED                 = 226;
  36         const AS_TEXTBOX_EMPTY                  = 228;
  37         const AS_MAX_ARTICLE_SIZE_EXCEEDED      = 229;
  38         const AS_OK                             = 230;
  39         const AS_END                            = 231;
  40         const AS_SPAM_ERROR                     = 232;
  41         const AS_IMAGE_REDIRECT_ANON            = 233;
  42         const AS_IMAGE_REDIRECT_LOGGED          = 234;
  43
  44         var $mArticle;
  45         var $mTitle;
  46         var $mMetaData = '';
  47         var $isConflict = false;
  48         var $isCssJsSubpage = false;
  49         var $deletedSinceEdit = false;
  50         var $formtype;
  51         var $firsttime;
  52         var $lastDelete;
  53         var $mTokenOk = false;
  54         var $mTokenOkExceptSuffix = false;
  55         var $mTriedSave = false;
  56         var $tooBig = false;
  57         var $kblength = false;
  58         var $missingComment = false;
  59         var $missingSummary = false;
  60         var $allowBlankSummary = false;
  61         var $autoSumm = '';
  62         var $hookError = '';
  63         var $mPreviewTemplates;
  64
  65         # Form values
  66         var $save = false, $preview = false, $diff = false;
  67         var $minoredit = false, $watchthis = false, $recreate = false;
  68         var $textbox1 = '', $textbox2 = '', $summary = '';
  69         var $edittime = '', $section = '', $starttime = '';
  70         var $oldid = 0, $editintro = '', $scrolltop = null;
  71
  72         # Placeholders for text injection by hooks (must be HTML)
  73         # extensions should take care to _append_ to the present value
  74         public $editFormPageTop; // Before even the preview
  75         public $editFormTextTop;
  76         public $editFormTextBeforeContent;
  77         public $editFormTextAfterWarn;
  78         public $editFormTextAfterTools;
  79         public $editFormTextBottom;
  80
  81         /* $didSave should be set to true whenever an article was succesfully altered. */
  82         public $didSave = false;
  83
  84         public $suppressIntro = false;
  85
  86         /**
  87          * @todo document
  88          * @param $article
  89          */
  90         function EditPage( $article ) {
  91                 $this->mArticle =& $article;
  92                 $this->mTitle = $article->getTitle();
  93
  94                 # Placeholders for text injection by hooks (empty per default)
  95                 $this->editFormPageTop =
  96                 $this->editFormTextTop =
  97                 $this->editFormTextBeforeContent =
  98                 $this->editFormTextAfterWarn =
  99                 $this->editFormTextAfterTools =
 100                 $this->editFormTextBottom = "";
 101         }
 102
 103         /**
 104          * Fetch initial editing page content.
 105          * @private
 106          */
 107         function getContent( $def_text = '' ) {
 108                 global $wgOut, $wgRequest, $wgParser;
 109
 110                 # Get variables from query string :P
 111                 $section = $wgRequest->getVal( 'section' );
 112                 $preload = $wgRequest->getVal( 'preload' );
 113                 $undoafter = $wgRequest->getVal( 'undoafter' );
 114                 $undo = $wgRequest->getVal( 'undo' );
 115
 116                 wfProfileIn( __METHOD__ );
 117
 118                 $text = '';
 119                 if( !$this->mTitle->exists() ) {
 120                         if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
 121                                 # If this is a system message, get the default text.
 122                                 $text = wfMsgWeirdKey ( $this->mTitle->getText() ) ;
 123                         } else {
 124                                 # If requested, preload some text.
 125                                 $text = $this->getPreloadedText( $preload );
 126                         }
 127                         # We used to put MediaWiki:Newarticletext here if
 128                         # $text was empty at this point.
 129                         # This is now shown above the edit box instead.
 130                 } else {
 131                         // FIXME: may be better to use Revision class directly
 132                         // But don't mess with it just yet. Article knows how to
 133                         // fetch the page record from the high-priority server,
 134                         // which is needed to guarantee we don't pick up lagged
 135                         // information.
 136
 137                         $text = $this->mArticle->getContent();
 138
 139                         if ($undo > 0 && $undoafter > 0 && $undo < $undoafter) {
 140                                 # If they got undoafter and undo round the wrong way, switch them
 141                                 list( $undo, $undoafter ) = array( $undoafter, $undo );
 142                         }
 143
 144                         if ( $undo > 0 && $undo > $undoafter ) {
 145                                 # Undoing a specific edit overrides section editing; section-editing
 146                                 # doesn't work with undoing.
 147                                 if ( $undoafter ) {
 148                                         $undorev = Revision::newFromId($undo);
 149                                         $oldrev = Revision::newFromId($undoafter);
 150                                 } else {
 151                                         $undorev = Revision::newFromId($undo);
 152                                         $oldrev = $undorev ? $undorev->getPrevious() : null;
 153                                 }
 154
 155                                 #Sanity check, make sure it's the right page.
 156                                 # Otherwise, $text will be left as-is.
 157                                 if ( !is_null($undorev) && !is_null($oldrev) && $undorev->getPage()==$oldrev->getPage() && $undorev->getPage()==$this->mArticle->getID() ) {
 158                                         $undorev_text = $undorev->getText();
 159                                         $oldrev_text = $oldrev->getText();
 160                                         $currev_text = $text;
 161
 162                                         #No use doing a merge if it's just a straight revert.
 163                                         if ( $currev_text != $undorev_text ) {
 164                                                 $result = wfMerge($undorev_text, $oldrev_text, $currev_text, $text);
 165                                         } else {
 166                                                 $text = $oldrev_text;
 167                                                 $result = true;
 168                                         }
 169                                 } else {
 170                                         // Failed basic sanity checks.
 171                                         // Older revisions may have been removed since the link
 172                                         // was created, or we may simply have got bogus input.
 173                                         $result = false;
 174                                 }
 175
 176                                 if( $result ) {
 177                                         # Inform the user of our success and set an automatic edit summary
 178                                         $this->editFormPageTop .= $wgOut->parse( wfMsgNoTrans( 'undo-success' ) );
 179                                         $firstrev = $oldrev->getNext();
 180                                         # If we just undid one rev, use an autosummary
 181                                         if ( $firstrev->mId == $undo ) {
 182                                                 $this->summary = wfMsgForContent('undo-summary', $undo, $undorev->getUserText());
 183                                         }
 184                                         $this->formtype = 'diff';
 185                                 } else {
 186                                         # Warn the user that something went wrong
 187                                         $this->editFormPageTop .= $wgOut->parse( wfMsgNoTrans( 'undo-failure' ) );
 188                                 }
 189                         } else if( $section != '' ) {
 190                                 if( $section == 'new' ) {
 191                                         $text = $this->getPreloadedText( $preload );
 192                                 } else {
 193                                         $text = $wgParser->getSection( $text, $section, $def_text );
 194                                 }
 195                         }
 196                 }
 197
 198                 wfProfileOut( __METHOD__ );
 199                 return $text;
 200         }
 201
 202         /**
 203          * Get the contents of a page from its title and remove includeonly tags
 204          *
 205          * @param $preload String: the title of the page.
 206          * @return string The contents of the page.
 207          */
 208         private function getPreloadedText($preload) {
 209                 if ( $preload === '' )
 210                         return '';
 211                 else {
 212                         $preloadTitle = Title::newFromText( $preload );
 213                         if ( isset( $preloadTitle ) && $preloadTitle->userCanRead() ) {
 214                                 $rev=Revision::newFromTitle($preloadTitle);
 215                                 if ( is_object( $rev ) ) {
 216                                         $text = $rev->getText();
 217                                         // TODO FIXME: AAAAAAAAAAA, this shouldn't be implementing
 218                                         // its own mini-parser! -ævar
 219                                         $text = preg_replace( '~</?includeonly>~', '', $text );
 220                                         return $text;
 221                                 } else
 222                                         return '';
 223                         }
 224                 }
 225         }
 226
 227         /**
 228          * This is the function that extracts metadata from the article body on the first view.
 229          * To turn the feature on, set $wgUseMetadataEdit = true ; in LocalSettings
 230          *  and set $wgMetadataWhitelist to the *full* title of the template whitelist
 231          */
 232         function extractMetaDataFromArticle () {
 233                 global $wgUseMetadataEdit , $wgMetadataWhitelist , $wgLang ;
 234                 $this->mMetaData = '' ;
 235                 if ( !$wgUseMetadataEdit ) return ;
 236                 if ( $wgMetadataWhitelist == '' ) return ;
 237                 $s = '' ;
 238                 $t = $this->getContent();
 239
 240                 # MISSING : <nowiki> filtering
 241
 242                 # Categories and language links
 243                 $t = explode ( "\n" , $t ) ;
 244                 $catlow = strtolower ( $wgLang->getNsText ( NS_CATEGORY ) ) ;
 245                 $cat = $ll = array() ;
 246                 foreach ( $t AS $key => $x )
 247                 {
 248                         $y = trim ( strtolower ( $x ) ) ;
 249                         while ( substr ( $y , 0 , 2 ) == '[[' )
 250                         {
 251                                 $y = explode ( ']]' , trim ( $x ) ) ;
 252                                 $first = array_shift ( $y ) ;
 253                                 $first = explode ( ':' , $first ) ;
 254                                 $ns = array_shift ( $first ) ;
 255                                 $ns = trim ( str_replace ( '[' , '' , $ns ) ) ;
 256                                 if ( strlen ( $ns ) == 2 OR strtolower ( $ns ) == $catlow )
 257                                 {
 258                                         $add = '[[' . $ns . ':' . implode ( ':' , $first ) . ']]' ;
 259                                         if ( strtolower ( $ns ) == $catlow ) $cat[] = $add ;
 260                                         else $ll[] = $add ;
 261                                         $x = implode ( ']]' , $y ) ;
 262                                         $t[$key] = $x ;
 263                                         $y = trim ( strtolower ( $x ) ) ;
 264                                 }
 265                         }
 266                 }
 267                 if ( count ( $cat ) ) $s .= implode ( ' ' , $cat ) . "\n" ;
 268                 if ( count ( $ll ) ) $s .= implode ( ' ' , $ll ) . "\n" ;
 269                 $t = implode ( "\n" , $t ) ;
 270
 271                 # Load whitelist
 272                 $sat = array () ; # stand-alone-templates; must be lowercase
 273                 $wl_title = Title::newFromText ( $wgMetadataWhitelist ) ;
 274                 $wl_article = new Article ( $wl_title ) ;
 275                 $wl = explode ( "\n" , $wl_article->getContent() ) ;
 276                 foreach ( $wl AS $x )
 277                 {
 278                         $isentry = false ;
 279                         $x = trim ( $x ) ;
 280                         while ( substr ( $x , 0 , 1 ) == '*' )
 281                         {
 282                                 $isentry = true ;
 283                                 $x = trim ( substr ( $x , 1 ) ) ;
 284                         }
 285                         if ( $isentry )
 286                         {
 287                                 $sat[] = strtolower ( $x ) ;
 288                         }
 289
 290                 }
 291
 292                 # Templates, but only some
 293                 $t = explode ( '{{' , $t ) ;
 294                 $tl = array () ;
 295                 foreach ( $t AS $key => $x )
 296                 {
 297                         $y = explode ( '}}' , $x , 2 ) ;
 298                         if ( count ( $y ) == 2 )
 299                         {
 300                                 $z = $y[0] ;
 301                                 $z = explode ( '|' , $z ) ;
 302                                 $tn = array_shift ( $z ) ;
 303                                 if ( in_array ( strtolower ( $tn ) , $sat ) )
 304                                 {
 305                                         $tl[] = '{{' . $y[0] . '}}' ;
 306                                         $t[$key] = $y[1] ;
 307                                         $y = explode ( '}}' , $y[1] , 2 ) ;
 308                                 }
 309                                 else $t[$key] = '{{' . $x ;
 310                         }
 311                         else if ( $key != 0 ) $t[$key] = '{{' . $x ;
 312                         else $t[$key] = $x ;
 313                 }
 314                 if ( count ( $tl ) ) $s .= implode ( ' ' , $tl ) ;
 315                 $t = implode ( '' , $t ) ;
 316
 317                 $t = str_replace ( "\n\n\n" , "\n" , $t ) ;
 318                 $this->mArticle->mContent = $t ;
 319                 $this->mMetaData = $s ;
 320         }
 321
 322         function submit() {
 323                 $this->edit();
 324         }
 325
 326         /**
 327          * This is the function that gets called for "action=edit". It
 328          * sets up various member variables, then passes execution to
 329          * another function, usually showEditForm()
 330          *
 331          * The edit form is self-submitting, so that when things like
 332          * preview and edit conflicts occur, we get the same form back
 333          * with the extra stuff added.  Only when the final submission
 334          * is made and all is well do we actually save and redirect to
 335          * the newly-edited page.
 336          */
 337         function edit() {
 338                 global $wgOut, $wgUser, $wgRequest;
 339
 340                 if ( !wfRunHooks( 'AlternateEdit', array( &$this ) ) )
 341                         return;
 342
 343                 wfProfileIn( __METHOD__ );
 344                 wfDebug( __METHOD__.": enter\n" );
 345
 346                 // this is not an article
 347                 $wgOut->setArticleFlag(false);
 348
 349                 $this->importFormData( $wgRequest );
 350                 $this->firsttime = false;
 351
 352                 if( $this->live ) {
 353                         $this->livePreview();
 354                         wfProfileOut( __METHOD__ );
 355                         return;
 356                 }
 357
 358                 if( wfReadOnly() ) {
 359                         $this->readOnlyPage( $this->getContent() );
 360                         wfProfileOut( __METHOD__ );
 361                         return;
 362                 }
 363
 364                 $permErrors = $this->mTitle->getUserPermissionsErrors('edit', $wgUser);
 365                 if( !$this->mTitle->exists() ) {
 366                         $permErrors = array_merge( $permErrors,
 367                                 wfArrayDiff2( $this->mTitle->getUserPermissionsErrors('create', $wgUser), $permErrors ) );
 368                 }
 369
 370                 # Ignore some permissions errors.
 371                 $remove = array();
 372                 foreach( $permErrors as $error ) {
 373                         if ( ( $this->preview || $this->diff ) &&
 374                                 ($error[0] == 'blockedtext' || $error[0] == 'autoblockedtext'))
 375                         {
 376                                 // Don't worry about blocks when previewing/diffing
 377                                 $remove[] = $error;
 378                         }
 379
 380                         if ($error[0] == 'readonlytext')
 381                         {
 382                                 if ($this->edit) {
 383                                         $this->formtype = 'preview';
 384                                 } elseif ($this->save || $this->preview || $this->diff) {
 385                                         $remove[] = $error;
 386                                 }
 387                         }
 388                 }
 389                 $permErrors = wfArrayDiff2( $permErrors, $remove );
 390
 391                 if ( $permErrors ) {
 392                         wfDebug( __METHOD__.": User can't edit\n" );
 393                         $this->readOnlyPage( $this->getContent(), true, $permErrors );
 394                         wfProfileOut( __METHOD__ );
 395                         return;
 396                 } else {
 397                         if ( $this->save ) {
 398                                 $this->formtype = 'save';
 399                         } else if ( $this->preview ) {
 400                                 $this->formtype = 'preview';
 401                         } else if ( $this->diff ) {
 402                                 $this->formtype = 'diff';
 403                         } else { # First time through
 404                                 $this->firsttime = true;
 405                                 if( $this->previewOnOpen() ) {
 406                                         $this->formtype = 'preview';
 407                                 } else {
 408                                         $this->extractMetaDataFromArticle () ;
 409                                         $this->formtype = 'initial';
 410                                 }
 411                         }
 412                 }
 413
 414                 wfProfileIn( __METHOD__."-business-end" );
 415
 416                 $this->isConflict = false;
 417                 // css / js subpages of user pages get a special treatment
 418                 $this->isCssJsSubpage      = $this->mTitle->isCssJsSubpage();
 419                 $this->isValidCssJsSubpage = $this->mTitle->isValidCssJsSubpage();
 420
 421                 /* Notice that we can't use isDeleted, because it returns true if article is ever deleted
 422                  * no matter it's current state
 423                  */
 424                 $this->deletedSinceEdit = false;
 425                 if ( $this->edittime != '' ) {
 426                         /* Note that we rely on logging table, which hasn't been always there,
 427                          * but that doesn't matter, because this only applies to brand new
 428                          * deletes. This is done on every preview and save request. Move it further down
 429                          * to only perform it on saves
 430                          */
 431                         if ( $this->mTitle->isDeleted() ) {
 432                                 $this->lastDelete = $this->getLastDelete();
 433                                 if ( !is_null($this->lastDelete) ) {
 434                                         $deletetime = $this->lastDelete->log_timestamp;
 435                                         if ( ($deletetime - $this->starttime) > 0 ) {
 436                                                 $this->deletedSinceEdit = true;
 437                                         }
 438                                 }
 439                         }
 440                 }
 441
 442                 # Show applicable editing introductions
 443                 if( $this->formtype == 'initial' || $this->firsttime )
 444                         $this->showIntro();
 445
 446                 if( $this->mTitle->isTalkPage() ) {
 447                         $wgOut->addWikiMsg( 'talkpagetext' );
 448                 }
 449
 450                 # Attempt submission here.  This will check for edit conflicts,
 451                 # and redundantly check for locked database, blocked IPs, etc.
 452                 # that edit() already checked just in case someone tries to sneak
 453                 # in the back door with a hand-edited submission URL.
 454
 455                 if ( 'save' == $this->formtype ) {
 456                         if ( !$this->attemptSave() ) {
 457                                 wfProfileOut( __METHOD__."-business-end" );
 458                                 wfProfileOut( __METHOD__ );
 459                                 return;
 460                         }
 461                 }
 462
 463                 # First time through: get contents, set time for conflict
 464                 # checking, etc.
 465                 if ( 'initial' == $this->formtype || $this->firsttime ) {
 466                         if ($this->initialiseForm() === false) {
 467                                 $this->noSuchSectionPage();
 468                                 wfProfileOut( __METHOD__."-business-end" );
 469                                 wfProfileOut( __METHOD__ );
 470                                 return;
 471                         }
 472                         if( !$this->mTitle->getArticleId() )
 473                                 wfRunHooks( 'EditFormPreloadText', array( &$this->textbox1, &$this->mTitle ) );
 474                 }
 475
 476                 $this->showEditForm();
 477                 wfProfileOut( __METHOD__."-business-end" );
 478                 wfProfileOut( __METHOD__ );
 479         }
 480
 481         /**
 482          * Show a read-only error
 483          * Parameters are the same as OutputPage:readOnlyPage()
 484          * Redirect to the article page if action=editredlink
 485          */
 486         function readOnlyPage( $source = null, $protected = false, $reasons = array() ) {
 487                 global $wgRequest, $wgOut;
 488                 if ( $wgRequest->getVal( 'action' ) === 'editredlink' ) {
 489                         // The edit page was reached via a red link.
 490                         // Redirect to the article page and let them click the edit tab if
 491                         // they really want a permission error.
 492                         $wgOut->redirect( $this->mTitle->getFullUrl() );
 493                 } else {
 494                         $wgOut->readOnlyPage( $source, $protected, $reasons );
 495                 }
 496         }
 497
 498         /**
 499          * Should we show a preview when the edit form is first shown?
 500          *
 501          * @return bool
 502          */
 503         private function previewOnOpen() {
 504                 global $wgRequest, $wgUser;
 505                 if( $wgRequest->getVal( 'preview' ) == 'yes' ) {
 506                         // Explicit override from request
 507                         return true;
 508                 } elseif( $wgRequest->getVal( 'preview' ) == 'no' ) {
 509                         // Explicit override from request
 510                         return false;
 511                 } elseif( $this->section == 'new' ) {
 512                         // Nothing *to* preview for new sections
 513                         return false;
 514                 } elseif( ( $wgRequest->getVal( 'preload' ) !== '' || $this->mTitle->exists() ) && $wgUser->getOption( 'previewonfirst' ) ) {
 515                         // Standard preference behaviour
 516                         return true;
 517                 } elseif( !$this->mTitle->exists() && $this->mTitle->getNamespace() == NS_CATEGORY ) {
 518                         // Categories are special
 519                         return true;
 520                 } else {
 521                         return false;
 522                 }
 523         }
 524
 525         /**
 526          * @todo document
 527          * @param $request
 528          */
 529         function importFormData( &$request ) {
 530                 global $wgLang, $wgUser;
 531                 $fname = 'EditPage::importFormData';
 532                 wfProfileIn( $fname );
 533
 534                 if( $request->wasPosted() ) {
 535                         # These fields need to be checked for encoding.
 536                         # Also remove trailing whitespace, but don't remove _initial_
 537                         # whitespace from the text boxes. This may be significant formatting.
 538                         $this->textbox1 = $this->safeUnicodeInput( $request, 'wpTextbox1' );
 539                         $this->textbox2 = $this->safeUnicodeInput( $request, 'wpTextbox2' );
 540                         $this->mMetaData = rtrim( $request->getText( 'metadata'   ) );
 541                         # Truncate for whole multibyte characters. +5 bytes for ellipsis
 542                         $this->summary   = $wgLang->truncate( $request->getText( 'wpSummary'  ), 250 );
 543
 544                         $this->edittime = $request->getVal( 'wpEdittime' );
 545                         $this->starttime = $request->getVal( 'wpStarttime' );
 546
 547                         $this->scrolltop = $request->getIntOrNull( 'wpScrolltop' );
 548
 549                         if( is_null( $this->edittime ) ) {
 550                                 # If the form is incomplete, force to preview.
 551                                 wfDebug( "$fname: Form data appears to be incomplete\n" );
 552                                 wfDebug( "POST DATA: " . var_export( $_POST, true ) . "\n" );
 553                                 $this->preview  = true;
 554                         } else {
 555                                 /* Fallback for live preview */
 556                                 $this->preview = $request->getCheck( 'wpPreview' ) || $request->getCheck( 'wpLivePreview' );
 557                                 $this->diff = $request->getCheck( 'wpDiff' );
 558
 559                                 // Remember whether a save was requested, so we can indicate
 560                                 // if we forced preview due to session failure.
 561                                 $this->mTriedSave = !$this->preview;
 562
 563                                 if ( $this->tokenOk( $request ) ) {
 564                                         # Some browsers will not report any submit button
 565                                         # if the user hits enter in the comment box.
 566                                         # The unmarked state will be assumed to be a save,
 567                                         # if the form seems otherwise complete.
 568                                         wfDebug( "$fname: Passed token check.\n" );
 569                                 } else if ( $this->diff ) {
 570                                         # Failed token check, but only requested "Show Changes".
 571                                         wfDebug( "$fname: Failed token check; Show Changes requested.\n" );
 572                                 } else {
 573                                         # Page might be a hack attempt posted from
 574                                         # an external site. Preview instead of saving.
 575                                         wfDebug( "$fname: Failed token check; forcing preview\n" );
 576                                         $this->preview = true;
 577                                 }
 578                         }
 579                         $this->save    = ! ( $this->preview OR $this->diff );
 580                         if( !preg_match( '/^\d{14}$/', $this->edittime )) {
 581                                 $this->edittime = null;
 582                         }
 583
 584                         if( !preg_match( '/^\d{14}$/', $this->starttime )) {
 585                                 $this->starttime = null;
 586                         }
 587
 588                         $this->recreate  = $request->getCheck( 'wpRecreate' );
 589
 590                         $this->minoredit = $request->getCheck( 'wpMinoredit' );
 591                         $this->watchthis = $request->getCheck( 'wpWatchthis' );
 592
 593                         # Don't force edit summaries when a user is editing their own user or talk page
 594                         if( ( $this->mTitle->mNamespace == NS_USER || $this->mTitle->mNamespace == NS_USER_TALK ) && $this->mTitle->getText() == $wgUser->getName() ) {
 595                                 $this->allowBlankSummary = true;
 596                         } else {
 597                                 $this->allowBlankSummary = $request->getBool( 'wpIgnoreBlankSummary' );
 598                         }
 599
 600                         $this->autoSumm = $request->getText( 'wpAutoSummary' );
 601                 } else {
 602                         # Not a posted form? Start with nothing.
 603                         wfDebug( "$fname: Not a posted form.\n" );
 604                         $this->textbox1  = '';
 605                         $this->textbox2  = '';
 606                         $this->mMetaData = '';
 607                         $this->summary   = '';
 608                         $this->edittime  = '';
 609                         $this->starttime = wfTimestampNow();
 610                         $this->edit      = false;
 611                         $this->preview   = false;
 612                         $this->save      = false;
 613                         $this->diff      = false;
 614                         $this->minoredit = false;
 615                         $this->watchthis = false;
 616                         $this->recreate  = false;
 617                 }
 618
 619                 $this->oldid = $request->getInt( 'oldid' );
 620
 621                 # Section edit can come from either the form or a link
 622                 $this->section = $request->getVal( 'wpSection', $request->getVal( 'section' ) );
 623
 624                 $this->live = $request->getCheck( 'live' );
 625                 $this->editintro = $request->getText( 'editintro' );
 626
 627                 wfProfileOut( $fname );
 628         }
 629
 630         /**
 631          * Make sure the form isn't faking a user's credentials.
 632          *
 633          * @param $request WebRequest
 634          * @return bool
 635          * @private
 636          */
 637         function tokenOk( &$request ) {
 638                 global $wgUser;
 639                 $token = $request->getVal( 'wpEditToken' );
 640                 $this->mTokenOk = $wgUser->matchEditToken( $token );
 641                 $this->mTokenOkExceptSuffix = $wgUser->matchEditTokenNoSuffix( $token );
 642                 return $this->mTokenOk;
 643         }
 644
 645         /**
 646          * Show all applicable editing introductions
 647          */
 648         private function showIntro() {
 649                 global $wgOut, $wgUser;
 650                 if( $this->suppressIntro )
 651                         return;
 652
 653                 # Show a warning message when someone creates/edits a user (talk) page but the user does not exists
 654                 if( $this->mTitle->getNamespace() == NS_USER || $this->mTitle->getNamespace() == NS_USER_TALK ) {
 655                         $parts = explode( '/', $this->mTitle->getText(), 2 );
 656                         $username = $parts[0];
 657                         $id = User::idFromName( $username );
 658                         $ip = User::isIP( $username );
 659
 660                         if ( $id == 0 && !$ip ) {
 661                                 $wgOut->wrapWikiMsg( '<div class="mw-userpage-userdoesnotexist error">$1</div>',
 662                                         array( 'userpage-userdoesnotexist', $username ) );
 663                         }
 664                 }
 665
 666                 if( !$this->showCustomIntro() && !$this->mTitle->exists() ) {
 667                         if( $wgUser->isLoggedIn() ) {
 668                                 $wgOut->wrapWikiMsg( '<div class="mw-newarticletext">$1</div>', 'newarticletext' );
 669                         } else {
 670                                 $wgOut->wrapWikiMsg( '<div class="mw-newarticletextanon">$1</div>', 'newarticletextanon' );
 671                         }
 672                         $this->showDeletionLog( $wgOut );
 673                 }
 674         }
 675
 676         /**
 677          * Attempt to show a custom editing introduction, if supplied
 678          *
 679          * @return bool
 680          */
 681         private function showCustomIntro() {
 682                 if( $this->editintro ) {
 683                         $title = Title::newFromText( $this->editintro );
 684                         if( $title instanceof Title && $title->exists() && $title->userCanRead() ) {
 685                                 global $wgOut;
 686                                 $revision = Revision::newFromTitle( $title );
 687                                 $wgOut->addSecondaryWikiText( $revision->getText() );
 688                                 return true;
 689                         } else {
 690                                 return false;
 691                         }
 692                 } else {
 693                         return false;
 694                 }
 695         }
 696
 697         /**
 698          * Attempt submission (no UI)
 699          * @return one of the constants describing the result
 700          */
 701         function internalAttemptSave( &$result, $bot = false ) {
 702                 global $wgSpamRegex, $wgFilterCallback, $wgUser, $wgOut, $wgParser;
 703                 global $wgMaxArticleSize;
 704
 705                 $fname = 'EditPage::attemptSave';
 706                 wfProfileIn( $fname );
 707                 wfProfileIn( "$fname-checks" );
 708
 709                 if( !wfRunHooks( 'EditPage::attemptSave', array( &$this ) ) )
 710                 {
 711                         wfDebug( "Hook 'EditPage::attemptSave' aborted article saving" );
 712                         return self::AS_HOOK_ERROR;
 713                 }
 714
 715                 # Check image redirect
 716                 if ( $this->mTitle->getNamespace() == NS_IMAGE &&
 717                         Title::newFromRedirect( $this->textbox1 ) instanceof Title &&
 718                         !$wgUser->isAllowed( 'upload' ) ) {
 719                                 if( $wgUser->isAnon() ) {
 720                                         return self::AS_IMAGE_REDIRECT_ANON;
 721                                 } else {
 722                                         return self::AS_IMAGE_REDIRECT_LOGGED;
 723                                 }
 724                 }
 725
 726                 # Reintegrate metadata
 727                 if ( $this->mMetaData != '' ) $this->textbox1 .= "\n" . $this->mMetaData ;
 728                 $this->mMetaData = '' ;
 729
 730                 # Check for spam
 731                 $matches = array();
 732                 if ( $wgSpamRegex && preg_match( $wgSpamRegex, $this->textbox1, $matches ) ) {
 733                         $result['spam'] = $matches[0];
 734                         wfProfileOut( "$fname-checks" );
 735                         wfProfileOut( $fname );
 736                         return self::AS_SPAM_ERROR;
 737                 }
 738                 if ( $wgFilterCallback && $wgFilterCallback( $this->mTitle, $this->textbox1, $this->section ) ) {
 739                         # Error messages or other handling should be performed by the filter function
 740                         wfProfileOut( "$fname-checks" );
 741                         wfProfileOut( $fname );
 742                         return self::AS_FILTERING;
 743                 }
 744                 if ( !wfRunHooks( 'EditFilter', array( $this, $this->textbox1, $this->section, &$this->hookError ) ) ) {
 745                         # Error messages etc. could be handled within the hook...
 746                         wfProfileOut( "$fname-checks" );
 747                         wfProfileOut( $fname );
 748                         return self::AS_HOOK_ERROR;
 749                 } elseif( $this->hookError != '' ) {
 750                         # ...or the hook could be expecting us to produce an error
 751                         wfProfileOut( "$fname-checks" );
 752                         wfProfileOut( $fname );
 753                         return self::AS_HOOK_ERROR_EXPECTED;
 754                 }
 755                 if ( $wgUser->isBlockedFrom( $this->mTitle, false ) ) {
 756                         # Check block state against master, thus 'false'.
 757                         wfProfileOut( "$fname-checks" );
 758                         wfProfileOut( $fname );
 759                         return self::AS_BLOCKED_PAGE_FOR_USER;
 760                 }
 761                 $this->kblength = (int)(strlen( $this->textbox1 ) / 1024);
 762                 if ( $this->kblength > $wgMaxArticleSize ) {
 763                         // Error will be displayed by showEditForm()
 764                         $this->tooBig = true;
 765                         wfProfileOut( "$fname-checks" );
 766                         wfProfileOut( $fname );
 767                         return self::AS_CONTENT_TOO_BIG;
 768                 }
 769
 770                 if ( !$wgUser->isAllowed('edit') ) {
 771                         if ( $wgUser->isAnon() ) {
 772                                 wfProfileOut( "$fname-checks" );
 773                                 wfProfileOut( $fname );
 774                                 return self::AS_READ_ONLY_PAGE_ANON;
 775                         }
 776                         else {
 777                                 wfProfileOut( "$fname-checks" );
 778                                 wfProfileOut( $fname );
 779                                 return self::AS_READ_ONLY_PAGE_LOGGED;
 780                         }
 781                 }
 782
 783                 if ( wfReadOnly() ) {
 784                         wfProfileOut( "$fname-checks" );
 785                         wfProfileOut( $fname );
 786                         return self::AS_READ_ONLY_PAGE;
 787                 }
 788                 if ( $wgUser->pingLimiter() ) {
 789                         wfProfileOut( "$fname-checks" );
 790                         wfProfileOut( $fname );
 791                         return self::AS_RATE_LIMITED;
 792                 }
 793
 794                 # If the article has been deleted while editing, don't save it without
 795                 # confirmation
 796                 if ( $this->deletedSinceEdit && !$this->recreate ) {
 797                         wfProfileOut( "$fname-checks" );
 798                         wfProfileOut( $fname );
 799                         return self::AS_ARTICLE_WAS_DELETED;
 800                 }
 801
 802                 wfProfileOut( "$fname-checks" );
 803
 804                 # If article is new, insert it.
 805                 $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
 806                 if ( 0 == $aid ) {
 807
 808                         // Late check for create permission, just in case *PARANOIA*
 809                         if ( !$this->mTitle->userCan( 'create' ) ) {
 810                                 wfDebug( "$fname: no create permission\n" );
 811                                 wfProfileOut( $fname );
 812                                 return self::AS_NO_CREATE_PERMISSION;
 813                         }
 814
 815                         # Don't save a new article if it's blank.
 816                         if ( '' == $this->textbox1 ) {
 817                                         wfProfileOut( $fname );
 818                                         return self::AS_BLANK_ARTICLE;
 819                         }
 820
 821                         // Run post-section-merge edit filter
 822                         if ( !wfRunHooks( 'EditFilterMerged', array( $this, $this->textbox1, &$this->hookError ) ) ) {
 823                                 # Error messages etc. could be handled within the hook...
 824                                 wfProfileOut( $fname );
 825                                 return self::AS_HOOK_ERROR;
 826                         }
 827
 828                         $isComment = ( $this->section == 'new' );
 829
 830                         $this->mArticle->insertNewArticle( $this->textbox1, $this->summary,
 831                                 $this->minoredit, $this->watchthis, false, $isComment, $bot);
 832
 833                         wfProfileOut( $fname );
 834                         return self::AS_SUCCESS_NEW_ARTICLE;
 835                 }
 836
 837                 # Article exists. Check for edit conflict.
 838
 839                 $this->mArticle->clear(); # Force reload of dates, etc.
 840                 $this->mArticle->forUpdate( true ); # Lock the article
 841
 842                 wfDebug("timestamp: {$this->mArticle->getTimestamp()}, edittime: {$this->edittime}\n");
 843
 844                 if( $this->mArticle->getTimestamp() != $this->edittime ) {
 845                         $this->isConflict = true;
 846                         if( $this->section == 'new' ) {
 847                                 if( $this->mArticle->getUserText() == $wgUser->getName() &&
 848                                         $this->mArticle->getComment() == $this->summary ) {
 849                                         // Probably a duplicate submission of a new comment.
 850                                         // This can happen when squid resends a request after
 851                                         // a timeout but the first one actually went through.
 852                                         wfDebug( "EditPage::editForm duplicate new section submission; trigger edit conflict!\n" );
 853                                 } else {
 854                                         // New comment; suppress conflict.
 855                                         $this->isConflict = false;
 856                                         wfDebug( "EditPage::editForm conflict suppressed; new section\n" );
 857                                 }
 858                         }
 859                 }
 860                 $userid = $wgUser->getID();
 861
 862                 if ( $this->isConflict) {
 863                         wfDebug( "EditPage::editForm conflict! getting section '$this->section' for time '$this->edittime' (article time '" .
 864                                 $this->mArticle->getTimestamp() . "')\n" );
 865                         $text = $this->mArticle->replaceSection( $this->section, $this->textbox1, $this->summary, $this->edittime);
 866                 }
 867                 else {
 868                         wfDebug( "EditPage::editForm getting section '$this->section'\n" );
 869                         $text = $this->mArticle->replaceSection( $this->section, $this->textbox1, $this->summary);
 870                 }
 871                 if( is_null( $text ) ) {
 872                         wfDebug( "EditPage::editForm activating conflict; section replace failed.\n" );
 873                         $this->isConflict = true;
 874                         $text = $this->textbox1;
 875                 }
 876
 877                 # Suppress edit conflict with self, except for section edits where merging is required.
 878                 if ( ( $this->section == '' ) && ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
 879                         wfDebug( "EditPage::editForm Suppressing edit conflict, same user.\n" );
 880                         $this->isConflict = false;
 881                 } else {
 882                         # switch from section editing to normal editing in edit conflict
 883                         if($this->isConflict) {
 884                                 # Attempt merge
 885                                 if( $this->mergeChangesInto( $text ) ){
 886                                         // Successful merge! Maybe we should tell the user the good news?
 887                                         $this->isConflict = false;
 888                                         wfDebug( "EditPage::editForm Suppressing edit conflict, successful merge.\n" );
 889                                 } else {
 890                                         $this->section = '';
 891                                         $this->textbox1 = $text;
 892                                         wfDebug( "EditPage::editForm Keeping edit conflict, failed merge.\n" );
 893                                 }
 894                         }
 895                 }
 896
 897                 if ( $this->isConflict ) {
 898                         wfProfileOut( $fname );
 899                         return self::AS_CONFLICT_DETECTED;
 900                 }
 901
 902                 $oldtext = $this->mArticle->getContent();
 903
 904                 // Run post-section-merge edit filter
 905                 if ( !wfRunHooks( 'EditFilterMerged', array( $this, $text, &$this->hookError ) ) ) {
 906                         # Error messages etc. could be handled within the hook...
 907                         wfProfileOut( $fname );
 908                         return self::AS_HOOK_ERROR;
 909                 }
 910
 911                 # Handle the user preference to force summaries here, but not for null edits
 912                 if( $this->section != 'new' && !$this->allowBlankSummary && $wgUser->getOption( 'forceeditsummary')
 913                         &&  0 != strcmp($oldtext, $text) && !Article::getRedirectAutosummary( $text )) {
 914                         if( md5( $this->summary ) == $this->autoSumm ) {
 915                                 $this->missingSummary = true;
 916                                 wfProfileOut( $fname );
 917                                 return self::AS_SUMMARY_NEEDED;
 918                         }
 919                 }
 920
 921                 #And a similar thing for new sections
 922                 if( $this->section == 'new' && !$this->allowBlankSummary && $wgUser->getOption( 'forceeditsummary' ) ) {
 923                         if (trim($this->summary) == '') {
 924                                 $this->missingSummary = true;
 925                                 wfProfileOut( $fname );
 926                                 return self::AS_SUMMARY_NEEDED;
 927                         }
 928                 }
 929
 930                 # All's well
 931                 wfProfileIn( "$fname-sectionanchor" );
 932                 $sectionanchor = '';
 933                 if( $this->section == 'new' ) {
 934                         if ( $this->textbox1 == '' ) {
 935                                 $this->missingComment = true;
 936                                 return self::AS_TEXTBOX_EMPTY;
 937                         }
 938                         if( $this->summary != '' ) {
 939                                 $sectionanchor = $wgParser->guessSectionNameFromWikiText( $this->summary );
 940                                 # This is a new section, so create a link to the new section
 941                                 # in the revision summary.
 942                                 $cleanSummary = $wgParser->stripSectionName( $this->summary );
 943                                 $this->summary = wfMsgForContent( 'newsectionsummary', $cleanSummary );
 944                         }
 945                 } elseif( $this->section != '' ) {
 946                         # Try to get a section anchor from the section source, redirect to edited section if header found
 947                         # XXX: might be better to integrate this into Article::replaceSection
 948                         # for duplicate heading checking and maybe parsing
 949                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
 950                         # we can't deal with anchors, includes, html etc in the header for now,
 951                         # headline would need to be parsed to improve this
 952                         if($hasmatch and strlen($matches[2]) > 0) {
 953                                 $sectionanchor = $wgParser->guessSectionNameFromWikiText( $matches[2] );
 954                         }
 955                 }
 956                 wfProfileOut( "$fname-sectionanchor" );
 957
 958                 // Save errors may fall down to the edit form, but we've now
 959                 // merged the section into full text. Clear the section field
 960                 // so that later submission of conflict forms won't try to
 961                 // replace that into a duplicated mess.
 962                 $this->textbox1 = $text;
 963                 $this->section = '';
 964
 965                 // Check for length errors again now that the section is merged in
 966                 $this->kblength = (int)(strlen( $text ) / 1024);
 967                 if ( $this->kblength > $wgMaxArticleSize ) {
 968                         $this->tooBig = true;
 969                         wfProfileOut( $fname );
 970                         return self::AS_MAX_ARTICLE_SIZE_EXCEEDED;
 971                 }
 972
 973                 # update the article here
 974                 if( $this->mArticle->updateArticle( $text, $this->summary, $this->minoredit,
 975                         $this->watchthis, $bot, $sectionanchor ) ) {
 976                         wfProfileOut( $fname );
 977                         return self::AS_SUCCESS_UPDATE;
 978                 } else {
 979                         $this->isConflict = true;
 980                 }
 981                 wfProfileOut( $fname );
 982                 return self::AS_END;
 983         }
 984
 985         /**
 986          * Initialise form fields in the object
 987          * Called on the first invocation, e.g. when a user clicks an edit link
 988          */
 989         function initialiseForm() {
 990                 $this->edittime = $this->mArticle->getTimestamp();
 991                 $this->summary = '';
 992                 $this->textbox1 = $this->getContent(false);
 993                 if ($this->textbox1 === false) return false;
 994
 995                 if ( !$this->mArticle->exists() && $this->mTitle->getNamespace() == NS_MEDIAWIKI )
 996                         $this->textbox1 = wfMsgWeirdKey( $this->mTitle->getText() );
 997                 wfProxyCheck();
 998                 return true;
 999         }
1000
1001         /**
1002          * Send the edit form and related headers to $wgOut
1003          * @param $formCallback Optional callable that takes an OutputPage
1004          *                      parameter; will be called during form output
1005          *                      near the top, for captchas and the like.
1006          */
1007         function showEditForm( $formCallback=null ) {
1008                 global $wgOut, $wgUser, $wgLang, $wgContLang, $wgMaxArticleSize, $wgTitle;
1009
1010                 $fname = 'EditPage::showEditForm';
1011                 wfProfileIn( $fname );
1012
1013                 $sk = $wgUser->getSkin();
1014
1015                 wfRunHooks( 'EditPage::showEditForm:initial', array( &$this ) ) ;
1016
1017                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1018
1019                 # Enabled article-related sidebar, toplinks, etc.
1020                 $wgOut->setArticleRelated( true );
1021
1022                 if ( $this->formtype == 'preview' ) {
1023                         $wgOut->setPageTitleActionText( wfMsg( 'preview' ) );
1024                 }
1025
1026                 if ( $this->isConflict ) {
1027                         $s = wfMsg( 'editconflict', $wgTitle->getPrefixedText() );
1028                         $wgOut->setPageTitle( $s );
1029                         $wgOut->addWikiMsg( 'explainconflict' );
1030
1031                         $this->textbox2 = $this->textbox1;
1032                         $this->textbox1 = $this->getContent();
1033                         $this->edittime = $this->mArticle->getTimestamp();
1034                 } else {
1035                         if( $this->section != '' ) {
1036                                 if( $this->section == 'new' ) {
1037                                         $s = wfMsg('editingcomment', $wgTitle->getPrefixedText() );
1038                                 } else {
1039                                         $s = wfMsg('editingsection', $wgTitle->getPrefixedText() );
1040                                         $matches = array();
1041                                         if( !$this->summary && !$this->preview && !$this->diff ) {
1042                                                 preg_match( "/^(=+)(.+)\\1/mi",
1043                                                         $this->textbox1,
1044                                                         $matches );
1045                                                 if( !empty( $matches[2] ) ) {
1046                                                         global $wgParser;
1047                                                         $this->summary = "/* " .
1048                                                                 $wgParser->stripSectionName(trim($matches[2])) .
1049                                                                 " */ ";
1050                                                 }
1051                                         }
1052                                 }
1053                         } else {
1054                                 $s = wfMsg( 'editing', $wgTitle->getPrefixedText() );
1055                         }
1056                         $wgOut->setPageTitle( $s );
1057
1058                         if ( $this->missingComment ) {
1059                                 $wgOut->wrapWikiMsg( '<div id="mw-missingcommenttext">$1</div>',  'missingcommenttext' );
1060                         }
1061
1062                         if( $this->missingSummary && $this->section != 'new' ) {
1063                                 $wgOut->wrapWikiMsg( '<div id="mw-missingsummary">$1</div>', 'missingsummary' );
1064                         }
1065
1066                         if( $this->missingSummary && $this->section == 'new' ) {
1067                                 $wgOut->wrapWikiMsg( '<div id="mw-missingcommentheader">$1</div>', 'missingcommentheader' );
1068                         }
1069
1070                         if( $this->hookError !== '' ) {
1071                                 $wgOut->addWikiText( $this->hookError );
1072                         }
1073
1074                         if ( !$this->checkUnicodeCompliantBrowser() ) {
1075                                 $wgOut->addWikiMsg( 'nonunicodebrowser' );
1076                         }
1077                         if ( isset( $this->mArticle ) && isset( $this->mArticle->mRevision ) ) {
1078                         // Let sysop know that this will make private content public if saved
1079
1080                                 if( !$this->mArticle->mRevision->userCan( Revision::DELETED_TEXT ) ) {
1081                                         $wgOut->addWikiMsg( 'rev-deleted-text-permission' );
1082                                 } else if( $this->mArticle->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
1083                                         $wgOut->addWikiMsg( 'rev-deleted-text-view' );
1084                                 }
1085
1086                                 if( !$this->mArticle->mRevision->isCurrent() ) {
1087                                         $this->mArticle->setOldSubtitle( $this->mArticle->mRevision->getId() );
1088                                         $wgOut->addWikiMsg( 'editingold' );
1089                                 }
1090                         }
1091                 }
1092
1093                 if( wfReadOnly() ) {
1094                         $wgOut->addHTML( '<div id="mw-read-only-warning">'.wfMsgWikiHTML( 'readonlywarning' ).'</div>' );
1095                 } elseif( $wgUser->isAnon() && $this->formtype != 'preview' ) {
1096                         $wgOut->addHTML( '<div id="mw-anon-edit-warning">'.wfMsgWikiHTML( 'anoneditwarning' ).'</div>' );
1097                 } else {
1098                         if( $this->isCssJsSubpage && $this->formtype != 'preview' ) {
1099                                 # Check the skin exists
1100                                 if( $this->isValidCssJsSubpage ) {
1101                                         $wgOut->addWikiMsg( 'usercssjsyoucanpreview' );
1102                                 } else {
1103                                         $wgOut->addWikiMsg( 'userinvalidcssjstitle', $wgTitle->getSkinFromCssJsSubpage() );
1104                                 }
1105                         }
1106                 }
1107
1108                 if( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
1109                         # Show a warning if editing an interface message
1110                         $wgOut->addWikiMsg( 'editinginterface' );
1111                 } elseif( $this->mTitle->isProtected( 'edit' ) ) {
1112                         # Is the title semi-protected?
1113                         if( $this->mTitle->isSemiProtected() ) {
1114                                 $noticeMsg = 'semiprotectedpagewarning';
1115                         } else {
1116                                 # Then it must be protected based on static groups (regular)
1117                                 $noticeMsg = 'protectedpagewarning';
1118                         }
1119                         $wgOut->addWikiMsg( $noticeMsg );
1120                 }
1121                 if ( $this->mTitle->isCascadeProtected() ) {
1122                         # Is this page under cascading protection from some source pages?
1123                         list($cascadeSources, /* $restrictions */) = $this->mTitle->getCascadeProtectionSources();
1124                         $notice = "$1\n";
1125                         if ( count($cascadeSources) > 0 ) {
1126                                 # Explain, and list the titles responsible
1127                                 foreach( $cascadeSources as $page ) {
1128                                         $notice .= '* [[:' . $page->getPrefixedText() . "]]\n";
1129                                 }
1130                         }
1131                         $wgOut->wrapWikiMsg( $notice, array( 'cascadeprotectedwarning', count($cascadeSources) ) );
1132                 }
1133                 if( !$this->mTitle->exists() && $this->mTitle->getRestrictions( 'create' ) != array() ){
1134                         $wgOut->addWikiMsg( 'titleprotectedwarning' );
1135                 }
1136
1137                 if ( $this->kblength === false ) {
1138                         $this->kblength = (int)(strlen( $this->textbox1 ) / 1024);
1139                 }
1140                 if ( $this->tooBig || $this->kblength > $wgMaxArticleSize ) {
1141                         $wgOut->addWikiMsg( 'longpageerror', $wgLang->formatNum( $this->kblength ), $wgMaxArticleSize );
1142                 } elseif( $this->kblength > 29 ) {
1143                         $wgOut->addWikiMsg( 'longpagewarning', $wgLang->formatNum( $this->kblength ) );
1144                 }
1145
1146                 #need to parse the preview early so that we know which templates are used,
1147                 #otherwise users with "show preview after edit box" will get a blank list
1148                 if ( $this->formtype == 'preview' ) {
1149                         $previewOutput = $this->getPreviewText();
1150                 }
1151
1152                 $rows = $wgUser->getIntOption( 'rows' );
1153                 $cols = $wgUser->getIntOption( 'cols' );
1154
1155                 $ew = $wgUser->getOption( 'editwidth' );
1156                 if ( $ew ) $ew = " style=\"width:100%\"";
1157                 else $ew = '';
1158
1159                 $q = 'action=submit';
1160                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
1161                 $action = $wgTitle->escapeLocalURL( $q );
1162
1163                 $summary = wfMsg('summary');
1164                 $subject = wfMsg('subject');
1165
1166                 $cancel = $sk->makeKnownLink( $wgTitle->getPrefixedText(),
1167                                 wfMsgExt('cancel', array('parseinline')) );
1168                 $edithelpurl = Skin::makeInternalOrExternalUrl( wfMsgForContent( 'edithelppage' ));
1169                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
1170                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
1171                         htmlspecialchars( wfMsg( 'newwindow' ) );
1172
1173                 global $wgRightsText;
1174                 if ( $wgRightsText ) {
1175                         $copywarnMsg = array( 'copyrightwarning',
1176                                 '[[' . wfMsgForContent( 'copyrightpage' ) . ']]',
1177                                 $wgRightsText );
1178                 } else {
1179                         $copywarnMsg = array( 'copyrightwarning2',
1180                                 '[[' . wfMsgForContent( 'copyrightpage' ) . ']]' );
1181                 }
1182
1183                 if( $wgUser->getOption('showtoolbar') and !$this->isCssJsSubpage ) {
1184                         # prepare toolbar for edit buttons
1185                         $toolbar = $this->getEditToolbar();
1186                 } else {
1187                         $toolbar = '';
1188                 }
1189
1190                 // activate checkboxes if user wants them to be always active
1191                 if( !$this->preview && !$this->diff ) {
1192                         # Sort out the "watch" checkbox
1193                         if( $wgUser->getOption( 'watchdefault' ) ) {
1194                                 # Watch all edits
1195                                 $this->watchthis = true;
1196                         } elseif( $wgUser->getOption( 'watchcreations' ) && !$this->mTitle->exists() ) {
1197                                 # Watch creations
1198                                 $this->watchthis = true;
1199                         } elseif( $this->mTitle->userIsWatching() ) {
1200                                 # Already watched
1201                                 $this->watchthis = true;
1202                         }
1203
1204                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
1205                 }
1206
1207                 $wgOut->addHTML( $this->editFormPageTop );
1208
1209                 if ( $wgUser->getOption( 'previewontop' ) ) {
1210
1211                         if ( 'preview' == $this->formtype ) {
1212                                 $this->showPreview( $previewOutput );
1213                         } else {
1214                                 $wgOut->addHTML( '<div id="wikiPreview"></div>' );
1215                         }
1216
1217                         if ( 'diff' == $this->formtype ) {
1218                                 $this->showDiff();
1219                         }
1220                 }
1221
1222
1223                 $wgOut->addHTML( $this->editFormTextTop );
1224
1225                 # if this is a comment, show a subject line at the top, which is also the edit summary.
1226                 # Otherwise, show a summary field at the bottom
1227                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
1228                 if( $this->section == 'new' ) {
1229                         $commentsubject="<span id='wpSummaryLabel'><label for='wpSummary'>{$subject}:</label></span>\n<div class='editOptions'>\n<input tabindex='1' type='text' value=\"$summarytext\" name='wpSummary' id='wpSummary' maxlength='200' size='60' /><br />";
1230                         $editsummary = '';
1231                         $subjectpreview = $summarytext && $this->preview ? "<div class=\"mw-summary-preview\">".wfMsg('subject-preview').':'.$sk->commentBlock( $this->summary, $this->mTitle )."</div>\n" : '';
1232                         $summarypreview = '';
1233                 } else {
1234                         $commentsubject = '';
1235                         $editsummary="<span id='wpSummaryLabel'><label for='wpSummary'>{$summary}:</label></span>\n<div class='editOptions'>\n<input tabindex='2' type='text' value=\"$summarytext\" name='wpSummary' id='wpSummary' maxlength='200' size='60' /><br />";
1236                         $summarypreview = $summarytext && $this->preview ? "<div class=\"mw-summary-preview\">".wfMsg('summary-preview').':'.$sk->commentBlock( $this->summary, $this->mTitle )."</div>\n" : '';
1237                         $subjectpreview = '';
1238                 }
1239
1240                 # Set focus to the edit box on load, except on preview or diff, where it would interfere with the display
1241                 if( !$this->preview && !$this->diff ) {
1242                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
1243                 }
1244                 $templates = ($this->preview || $this->section != '') ? $this->mPreviewTemplates : $this->mArticle->getUsedTemplates();
1245                 $formattedtemplates = $sk->formatTemplates( $templates, $this->preview, $this->section != '');
1246
1247                 global $wgUseMetadataEdit ;
1248                 if ( $wgUseMetadataEdit ) {
1249                         $metadata = $this->mMetaData ;
1250                         $metadata = htmlspecialchars( $wgContLang->recodeForEdit( $metadata ) ) ;
1251                         $top = wfMsgWikiHtml( 'metadata_help' );
1252                         $metadata = $top . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
1253                 }
1254                 else $metadata = "" ;
1255
1256                 $hidden = '';
1257                 $recreate = '';
1258                 if ($this->deletedSinceEdit) {
1259                         if ( 'save' != $this->formtype ) {
1260                                 $wgOut->addWikiMsg('deletedwhileediting');
1261                         } else {
1262                                 // Hide the toolbar and edit area, use can click preview to get it back
1263                                 // Add an confirmation checkbox and explanation.
1264                                 $toolbar = '';
1265                                 $hidden = 'type="hidden" style="display:none;"';
1266                                 $recreate = $wgOut->parse( wfMsg( 'confirmrecreate',  $this->lastDelete->user_name , $this->lastDelete->log_comment ));
1267                                 $recreate .=
1268                                         "<br /><input tabindex='1' type='checkbox' value='1' name='wpRecreate' id='wpRecreate' />".
1269                                         "<label for='wpRecreate' title='".wfMsg('tooltip-recreate')."'>". wfMsg('recreate')."</label>";
1270                         }
1271                 }
1272
1273                 $tabindex = 2;
1274
1275                 $checkboxes = self::getCheckboxes( $tabindex, $sk,
1276                         array( 'minor' => $this->minoredit, 'watch' => $this->watchthis ) );
1277
1278                 $checkboxhtml = implode( $checkboxes, "\n" );
1279
1280                 $buttons = $this->getEditButtons( $tabindex );
1281                 $buttonshtml = implode( $buttons, "\n" );
1282
1283                 $safemodehtml = $this->checkUnicodeCompliantBrowser()
1284                         ? '' : Xml::hidden( 'safemode', '1' );
1285
1286                 $wgOut->addHTML( <<<END
1287 {$toolbar}
1288 <form id="editform" name="editform" method="post" action="$action" enctype="multipart/form-data">
1289 END
1290 );
1291
1292                 if( is_callable( $formCallback ) ) {
1293                         call_user_func_array( $formCallback, array( &$wgOut ) );
1294                 }
1295
1296                 wfRunHooks( 'EditPage::showEditForm:fields', array( &$this, &$wgOut ) );
1297
1298                 // Put these up at the top to ensure they aren't lost on early form submission
1299                 $wgOut->addHTML( "
1300 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
1301 <input type='hidden' value=\"{$this->starttime}\" name=\"wpStarttime\" />\n
1302 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n
1303 <input type='hidden' value=\"{$this->scrolltop}\" name=\"wpScrolltop\" id=\"wpScrolltop\" />\n" );
1304
1305                 $wgOut->addHTML( <<<END
1306 $recreate
1307 {$commentsubject}
1308 {$subjectpreview}
1309 {$this->editFormTextBeforeContent}
1310 <textarea tabindex='1' accesskey="," name="wpTextbox1" id="wpTextbox1" rows='{$rows}'
1311 cols='{$cols}'{$ew} $hidden>
1312 END
1313 . htmlspecialchars( $this->safeUnicodeOutput( $this->textbox1 ) ) .
1314 "
1315 </textarea>
1316                 " );
1317
1318                 $wgOut->wrapWikiMsg( "<div id=\"editpage-copywarn\">\n$1\n</div>", $copywarnMsg );
1319                 $wgOut->addHTML( $this->editFormTextAfterWarn );
1320                 $wgOut->addHTML( "
1321 {$metadata}
1322 {$editsummary}
1323 {$summarypreview}
1324 {$checkboxhtml}
1325 {$safemodehtml}
1326 ");
1327
1328                 $wgOut->addHTML(
1329 "<div class='editButtons'>
1330 {$buttonshtml}
1331         <span class='editHelp'>{$cancel} | {$edithelp}</span>
1332 </div><!-- editButtons -->
1333 </div><!-- editOptions -->");
1334
1335                 $wgOut->addHtml( '<div class="mw-editTools">' );
1336                 $wgOut->addWikiMsgArray( 'edittools', array(), array( 'content' ) );
1337                 $wgOut->addHtml( '</div>' );
1338
1339                 $wgOut->addHTML( $this->editFormTextAfterTools );
1340
1341                 $wgOut->addHTML( "
1342 <div class='templatesUsed'>
1343 {$formattedtemplates}
1344 </div>
1345 " );
1346
1347                 /**
1348                  * To make it harder for someone to slip a user a page
1349                  * which submits an edit form to the wiki without their
1350                  * knowledge, a random token is associated with the login
1351                  * session. If it's not passed back with the submission,
1352                  * we won't save the page, or render user JavaScript and
1353                  * CSS previews.
1354                  *
1355                  * For anon editors, who may not have a session, we just
1356                  * include the constant suffix to prevent editing from
1357                  * broken text-mangling proxies.
1358                  */
1359                 $token = htmlspecialchars( $wgUser->editToken() );
1360                 $wgOut->addHTML( "\n<input type='hidden' value=\"$token\" name=\"wpEditToken\" />\n" );
1361
1362
1363                 # If a blank edit summary was previously provided, and the appropriate
1364                 # user preference is active, pass a hidden tag here. This will stop the
1365                 # user being bounced back more than once in the event that a summary
1366                 # is not required.
1367                 if( $this->missingSummary ) {
1368                         $wgOut->addHTML( "<input type=\"hidden\" name=\"wpIgnoreBlankSummary\" value=\"1\" />\n" );
1369                 }
1370
1371                 # For a bit more sophisticated detection of blank summaries, hash the
1372                 # automatic one and pass that in a hidden field.
1373                 $autosumm = $this->autoSumm ? $this->autoSumm : md5( $this->summary );
1374                 $wgOut->addHtml( wfHidden( 'wpAutoSummary', $autosumm ) );
1375
1376                 if ( $this->isConflict ) {
1377                         $wgOut->wrapWikiMsg( '==$1==', "yourdiff" );
1378
1379                         $de = new DifferenceEngine( $this->mTitle );
1380                         $de->setText( $this->textbox2, $this->textbox1 );
1381                         $de->showDiff( wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
1382
1383                         $wgOut->wrapWikiMsg( '==$1==', "yourtext" );
1384                         $wgOut->addHTML( "<textarea tabindex='6' id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}'>"
1385                                 . htmlspecialchars( $this->safeUnicodeOutput( $this->textbox2 ) ) . "\n</textarea>" );
1386                 }
1387                 $wgOut->addHTML( $this->editFormTextBottom );
1388                 $wgOut->addHTML( "</form>\n" );
1389                 if ( !$wgUser->getOption( 'previewontop' ) ) {
1390
1391                         if ( $this->formtype == 'preview') {
1392                                 $this->showPreview( $previewOutput );
1393                         } else {
1394                                 $wgOut->addHTML( '<div id="wikiPreview"></div>' );
1395                         }
1396
1397                         if ( $this->formtype == 'diff') {
1398                                 $this->showDiff();
1399                         }
1400
1401                 }
1402
1403                 wfProfileOut( $fname );
1404         }
1405
1406         /**
1407          * Append preview output to $wgOut.
1408          * Includes category rendering if this is a category page.
1409          *
1410          * @param string $text The HTML to be output for the preview.
1411          */
1412         private function showPreview( $text ) {
1413                 global $wgOut;
1414
1415                 $wgOut->addHTML( '<div id="wikiPreview">' );
1416                 if($this->mTitle->getNamespace() == NS_CATEGORY) {
1417                         $this->mArticle->openShowCategory();
1418                 }
1419                 wfRunHooks( 'OutputPageBeforeHTML',array( &$wgOut, &$text ) );
1420                 $wgOut->addHTML( $text );
1421                 if($this->mTitle->getNamespace() == NS_CATEGORY) {
1422                         $this->mArticle->closeShowCategory();
1423                 }
1424                 $wgOut->addHTML( '</div>' );
1425         }
1426
1427         /**
1428          * Live Preview lets us fetch rendered preview page content and
1429          * add it to the page without refreshing the whole page.
1430          * If not supported by the browser it will fall through to the normal form
1431          * submission method.
1432          *
1433          * This function outputs a script tag to support live preview, and
1434          * returns an onclick handler which should be added to the attributes
1435          * of the preview button
1436          */
1437         function doLivePreviewScript() {
1438                 global $wgStylePath, $wgJsMimeType, $wgStyleVersion, $wgOut, $wgTitle;
1439                 $wgOut->addHTML( '<script type="'.$wgJsMimeType.'" src="' .
1440                         htmlspecialchars( "$wgStylePath/common/preview.js?$wgStyleVersion" ) .
1441                         '"></script>' . "\n" );
1442                 $liveAction = $wgTitle->getLocalUrl( 'action=submit&wpPreview=true&live=true' );
1443                 return "return !lpDoPreview(" .
1444                         "editform.wpTextbox1.value," .
1445                         '"' . $liveAction . '"' . ")";
1446         }
1447
1448         function getLastDelete() {
1449                 $dbr = wfGetDB( DB_SLAVE );
1450                 $fname = 'EditPage::getLastDelete';
1451                 $res = $dbr->select(
1452                         array( 'logging', 'user' ),
1453                         array( 'log_type',
1454                                'log_action',
1455                                'log_timestamp',
1456                                'log_user',
1457                                'log_namespace',
1458                                'log_title',
1459                                'log_comment',
1460                                'log_params',
1461                                'user_name', ),
1462                         array( 'log_namespace' => $this->mTitle->getNamespace(),
1463                                'log_title' => $this->mTitle->getDBkey(),
1464                                'log_type' => 'delete',
1465                                'log_action' => 'delete',
1466                                'user_id=log_user' ),
1467                         $fname,
1468                         array( 'LIMIT' => 1, 'ORDER BY' => 'log_timestamp DESC' ) );
1469
1470                 if($dbr->numRows($res) == 1) {
1471                         while ( $x = $dbr->fetchObject ( $res ) )
1472                                 $data = $x;
1473                         $dbr->freeResult ( $res ) ;
1474                 } else {
1475                         $data = null;
1476                 }
1477                 return $data;
1478         }
1479
1480         /**
1481          * @todo document
1482          */
1483         function getPreviewText() {
1484                 global $wgOut, $wgUser, $wgTitle, $wgParser;
1485
1486                 $fname = 'EditPage::getPreviewText';
1487                 wfProfileIn( $fname );
1488
1489                 if ( $this->mTriedSave && !$this->mTokenOk ) {
1490                         if ( $this->mTokenOkExceptSuffix ) {
1491                                 $note = wfMsg( 'token_suffix_mismatch' );
1492                         } else {
1493                                 $note = wfMsg( 'session_fail_preview' );
1494                         }
1495                 } else {
1496                         $note = wfMsg( 'previewnote' );
1497                 }
1498
1499                 $parserOptions = ParserOptions::newFromUser( $wgUser );
1500                 $parserOptions->setEditSection( false );
1501
1502                 global $wgRawHtml;
1503                 if( $wgRawHtml && !$this->mTokenOk ) {
1504                         // Could be an offsite preview attempt. This is very unsafe if
1505                         // HTML is enabled, as it could be an attack.
1506                         return $wgOut->parse( "<div class='previewnote'>" .
1507                                 wfMsg( 'session_fail_preview_html' ) . "</div>" );
1508                 }
1509
1510                 # don't parse user css/js, show message about preview
1511                 # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
1512
1513                 if ( $this->isCssJsSubpage ) {
1514                         if(preg_match("/\\.css$/", $this->mTitle->getText() ) ) {
1515                                 $previewtext = wfMsg('usercsspreview');
1516                         } else if(preg_match("/\\.js$/", $this->mTitle->getText() ) ) {
1517                                 $previewtext = wfMsg('userjspreview');
1518                         }
1519                         $parserOptions->setTidy(true);
1520                         $parserOutput = $wgParser->parse( $previewtext , $this->mTitle, $parserOptions );
1521                         $wgOut->addHTML( $parserOutput->mText );
1522                         $previewHTML = '';
1523                 } else {
1524                         $toparse = $this->textbox1;
1525
1526                         # If we're adding a comment, we need to show the
1527                         # summary as the headline
1528                         if($this->section=="new" && $this->summary!="") {
1529                                 $toparse="== {$this->summary} ==\n\n".$toparse;
1530                         }
1531
1532                         if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData ;
1533                         $parserOptions->setTidy(true);
1534                         $parserOptions->enableLimitReport();
1535                         $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ) ."\n\n",
1536                                         $this->mTitle, $parserOptions );
1537
1538                         $previewHTML = $parserOutput->getText();
1539                         $wgOut->addParserOutputNoText( $parserOutput );
1540
1541                         # ParserOutput might have altered the page title, so reset it
1542                         # Also, use the title defined by DISPLAYTITLE magic word when present
1543                         if( ( $dt = $parserOutput->getDisplayTitle() ) !== false ) {
1544                                 $wgOut->setPageTitle( wfMsg( 'editing', $dt ) );
1545                         } else {
1546                                 $wgOut->setPageTitle( wfMsg( 'editing', $wgTitle->getPrefixedText() ) );
1547                         }
1548
1549                         foreach ( $parserOutput->getTemplates() as $ns => $template)
1550                                 foreach ( array_keys( $template ) as $dbk)
1551                                         $this->mPreviewTemplates[] = Title::makeTitle($ns, $dbk);
1552
1553                         if ( count( $parserOutput->getWarnings() ) ) {
1554                                 $note .= "\n\n" . implode( "\n\n", $parserOutput->getWarnings() );
1555                         }
1556                 }
1557
1558                 $previewhead = '<h2>' . htmlspecialchars( wfMsg( 'preview' ) ) . "</h2>\n" .
1559                         "<div class='previewnote'>" . $wgOut->parse( $note ) . "</div>\n";
1560                 if ( $this->isConflict ) {
1561                         $previewhead.='<h2>' . htmlspecialchars( wfMsg( 'previewconflict' ) ) . "</h2>\n";
1562                 }
1563
1564                 wfProfileOut( $fname );
1565                 return $previewhead . $previewHTML;
1566         }
1567
1568         /**
1569          * Call the stock "user is blocked" page
1570          */
1571         function blockedPage() {
1572                 global $wgOut, $wgUser;
1573                 $wgOut->blockedPage( false ); # Standard block notice on the top, don't 'return'
1574
1575                 # If the user made changes, preserve them when showing the markup
1576                 # (This happens when a user is blocked during edit, for instance)
1577                 $first = $this->firsttime || ( !$this->save && $this->textbox1 == '' );
1578                 if( $first ) {
1579                         $source = $this->mTitle->exists() ? $this->getContent() : false;
1580                 } else {
1581                         $source = $this->textbox1;
1582                 }
1583
1584                 # Spit out the source or the user's modified version
1585                 if( $source !== false ) {
1586                         $rows = $wgUser->getOption( 'rows' );
1587                         $cols = $wgUser->getOption( 'cols' );
1588                         $attribs = array( 'id' => 'wpTextbox1', 'name' => 'wpTextbox1', 'cols' => $cols, 'rows' => $rows, 'readonly' => 'readonly' );
1589                         $wgOut->addHtml( '<hr />' );
1590                         $wgOut->addWikiMsg( $first ? 'blockedoriginalsource' : 'blockededitsource', $this->mTitle->getPrefixedText() );
1591                         $wgOut->addHtml( wfOpenElement( 'textarea', $attribs ) . htmlspecialchars( $source ) . wfCloseElement( 'textarea' ) );
1592                 }
1593         }
1594
1595         /**
1596          * Produce the stock "please login to edit pages" page
1597          */
1598         function userNotLoggedInPage() {
1599                 global $wgUser, $wgOut, $wgTitle;
1600                 $skin = $wgUser->getSkin();
1601
1602                 $loginTitle = SpecialPage::getTitleFor( 'Userlogin' );
1603                 $loginLink = $skin->makeKnownLinkObj( $loginTitle, wfMsgHtml( 'loginreqlink' ), 'returnto=' . $wgTitle->getPrefixedUrl() );
1604
1605                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
1606                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1607                 $wgOut->setArticleRelated( false );
1608
1609                 $wgOut->addHtml( wfMsgWikiHtml( 'whitelistedittext', $loginLink ) );
1610                 $wgOut->returnToMain( false, $wgTitle );
1611         }
1612
1613         /**
1614          * Creates a basic error page which informs the user that
1615          * they have attempted to edit a nonexistant section.
1616          */
1617         function noSuchSectionPage() {
1618                 global $wgOut, $wgTitle;
1619
1620                 $wgOut->setPageTitle( wfMsg( 'nosuchsectiontitle' ) );
1621                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1622                 $wgOut->setArticleRelated( false );
1623
1624                 $wgOut->addWikiMsg( 'nosuchsectiontext', $this->section );
1625                 $wgOut->returnToMain( false, $wgTitle );
1626         }
1627
1628         /**
1629          * Produce the stock "your edit contains spam" page
1630          *
1631          * @param $match Text which triggered one or more filters
1632          */
1633         function spamPage( $match = false ) {
1634                 global $wgOut, $wgTitle;
1635
1636                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
1637                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1638                 $wgOut->setArticleRelated( false );
1639
1640                 $wgOut->addHtml( '<div id="spamprotected">' );
1641                 $wgOut->addWikiMsg( 'spamprotectiontext' );
1642                 if ( $match )
1643                         $wgOut->addWikiMsg( 'spamprotectionmatch',wfEscapeWikiText( $match ) );
1644                 $wgOut->addHtml( '</div>' );
1645
1646                 $wgOut->returnToMain( false, $wgTitle );
1647         }
1648
1649         /**
1650          * @private
1651          * @todo document
1652          */
1653         function mergeChangesInto( &$editText ){
1654                 $fname = 'EditPage::mergeChangesInto';
1655                 wfProfileIn( $fname );
1656
1657                 $db = wfGetDB( DB_MASTER );
1658
1659                 // This is the revision the editor started from
1660                 $baseRevision = Revision::loadFromTimestamp(
1661                         $db, $this->mTitle, $this->edittime );
1662                 if( is_null( $baseRevision ) ) {
1663                         wfProfileOut( $fname );
1664                         return false;
1665                 }
1666                 $baseText = $baseRevision->getText();
1667
1668                 // The current state, we want to merge updates into it
1669                 $currentRevision =  Revision::loadFromTitle(
1670                         $db, $this->mTitle );
1671                 if( is_null( $currentRevision ) ) {
1672                         wfProfileOut( $fname );
1673                         return false;
1674                 }
1675                 $currentText = $currentRevision->getText();
1676
1677                 $result = '';
1678                 if( wfMerge( $baseText, $editText, $currentText, $result ) ){
1679                         $editText = $result;
1680                         wfProfileOut( $fname );
1681                         return true;
1682                 } else {
1683                         wfProfileOut( $fname );
1684                         return false;
1685                 }
1686         }
1687
1688         /**
1689          * Check if the browser is on a blacklist of user-agents known to
1690          * mangle UTF-8 data on form submission. Returns true if Unicode
1691          * should make it through, false if it's known to be a problem.
1692          * @return bool
1693          * @private
1694          */
1695         function checkUnicodeCompliantBrowser() {
1696                 global $wgBrowserBlackList;
1697                 if( empty( $_SERVER["HTTP_USER_AGENT"] ) ) {
1698                         // No User-Agent header sent? Trust it by default...
1699                         return true;
1700                 }
1701                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
1702                 foreach ( $wgBrowserBlackList as $browser ) {
1703                         if ( preg_match($browser, $currentbrowser) ) {
1704                                 return false;
1705                         }
1706                 }
1707                 return true;
1708         }
1709
1710         /**
1711          * @deprecated use $wgParser->stripSectionName()
1712          */
1713         function pseudoParseSectionAnchor( $text ) {
1714                 global $wgParser;
1715                 return $wgParser->stripSectionName( $text );
1716         }
1717
1718         /**
1719          * Format an anchor fragment as it would appear for a given section name
1720          * @param string $text
1721          * @return string
1722          * @private
1723          */
1724         function sectionAnchor( $text ) {
1725                 global $wgParser;
1726                 return $wgParser->guessSectionNameFromWikiText( $text );
1727         }
1728
1729         /**
1730          * Shows a bulletin board style toolbar for common editing functions.
1731          * It can be disabled in the user preferences.
1732          * The necessary JavaScript code can be found in style/wikibits.js.
1733          */
1734         function getEditToolbar() {
1735                 global $wgStylePath, $wgContLang, $wgJsMimeType;
1736
1737                 /**
1738                  * toolarray an array of arrays which each include the filename of
1739                  * the button image (without path), the opening tag, the closing tag,
1740                  * and optionally a sample text that is inserted between the two when no
1741                  * selection is highlighted.
1742                  * The tip text is shown when the user moves the mouse over the button.
1743                  *
1744                  * Already here are accesskeys (key), which are not used yet until someone
1745                  * can figure out a way to make them work in IE. However, we should make
1746                  * sure these keys are not defined on the edit page.
1747                  */
1748                 $toolarray = array(
1749                         array(  'image' => 'button_bold.png',
1750                                 'id'    => 'mw-editbutton-bold',
1751                                 'open'  => '\\\'\\\'\\\'',
1752                                 'close' => '\\\'\\\'\\\'',
1753                                 'sample'=> wfMsg('bold_sample'),
1754                                 'tip'   => wfMsg('bold_tip'),
1755                                 'key'   => 'B'
1756                         ),
1757                         array(  'image' => 'button_italic.png',
1758                                 'id'    => 'mw-editbutton-italic',
1759                                 'open'  => '\\\'\\\'',
1760                                 'close' => '\\\'\\\'',
1761                                 'sample'=> wfMsg('italic_sample'),
1762                                 'tip'   => wfMsg('italic_tip'),
1763                                 'key'   => 'I'
1764                         ),
1765                         array(  'image' => 'button_link.png',
1766                                 'id'    => 'mw-editbutton-link',
1767                                 'open'  => '[[',
1768                                 'close' => ']]',
1769                                 'sample'=> wfMsg('link_sample'),
1770                                 'tip'   => wfMsg('link_tip'),
1771                                 'key'   => 'L'
1772                         ),
1773                         array(  'image' => 'button_extlink.png',
1774                                 'id'    => 'mw-editbutton-extlink',
1775                                 'open'  => '[',
1776                                 'close' => ']',
1777                                 'sample'=> wfMsg('extlink_sample'),
1778                                 'tip'   => wfMsg('extlink_tip'),
1779                                 'key'   => 'X'
1780                         ),
1781                         array(  'image' => 'button_headline.png',
1782                                 'id'    => 'mw-editbutton-headline',
1783                                 'open'  => "\\n== ",
1784                                 'close' => " ==\\n",
1785                                 'sample'=> wfMsg('headline_sample'),
1786                                 'tip'   => wfMsg('headline_tip'),
1787                                 'key'   => 'H'
1788                         ),
1789                         array(  'image' => 'button_image.png',
1790                                 'id'    => 'mw-editbutton-image',
1791                                 'open'  => '[['.$wgContLang->getNsText(NS_IMAGE).":",
1792                                 'close' => ']]',
1793                                 'sample'=> wfMsg('image_sample'),
1794                                 'tip'   => wfMsg('image_tip'),
1795                                 'key'   => 'D'
1796                         ),
1797                         array(  'image' => 'button_media.png',
1798                                 'id'    => 'mw-editbutton-media',
1799                                 'open'  => '[['.$wgContLang->getNsText(NS_MEDIA).':',
1800                                 'close' => ']]',
1801                                 'sample'=> wfMsg('media_sample'),
1802                                 'tip'   => wfMsg('media_tip'),
1803                                 'key'   => 'M'
1804                         ),
1805                         array(  'image' => 'button_math.png',
1806                                 'id'    => 'mw-editbutton-math',
1807                                 'open'  => "<math>",
1808                                 'close' => "<\\/math>",
1809                                 'sample'=> wfMsg('math_sample'),
1810                                 'tip'   => wfMsg('math_tip'),
1811                                 'key'   => 'C'
1812                         ),
1813                         array(  'image' => 'button_nowiki.png',
1814                                 'id'    => 'mw-editbutton-nowiki',
1815                                 'open'  => "<nowiki>",
1816                                 'close' => "<\\/nowiki>",
1817                                 'sample'=> wfMsg('nowiki_sample'),
1818                                 'tip'   => wfMsg('nowiki_tip'),
1819                                 'key'   => 'N'
1820                         ),
1821                         array(  'image' => 'button_sig.png',
1822                                 'id'    => 'mw-editbutton-signature',
1823                                 'open'  => '--~~~~',
1824                                 'close' => '',
1825                                 'sample'=> '',
1826                                 'tip'   => wfMsg('sig_tip'),
1827                                 'key'   => 'Y'
1828                         ),
1829                         array(  'image' => 'button_hr.png',
1830                                 'id'    => 'mw-editbutton-hr',
1831                                 'open'  => "\\n----\\n",
1832                                 'close' => '',
1833                                 'sample'=> '',
1834                                 'tip'   => wfMsg('hr_tip'),
1835                                 'key'   => 'R'
1836                         )
1837                 );
1838                 $toolbar = "<div id='toolbar'>\n";
1839                 $toolbar.="<script type='$wgJsMimeType'>\n/*<![CDATA[*/\n";
1840
1841                 foreach($toolarray as $tool) {
1842
1843                         $cssId = $tool['id'];
1844                         $image=$wgStylePath.'/common/images/'.$tool['image'];
1845                         $open=$tool['open'];
1846                         $close=$tool['close'];
1847                         $sample = wfEscapeJsString( $tool['sample'] );
1848
1849                         // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
1850                         // Older browsers show a "speedtip" type message only for ALT.
1851                         // Ideally these should be different, realistically they
1852                         // probably don't need to be.
1853                         $tip = wfEscapeJsString( $tool['tip'] );
1854
1855                         #$key = $tool["key"];
1856
1857                         $toolbar.="addButton('$image','$tip','$open','$close','$sample','$cssId');\n";
1858                 }
1859
1860                 $toolbar.="/*]]>*/\n</script>";
1861                 $toolbar.="\n</div>";
1862                 return $toolbar;
1863         }
1864
1865         /**
1866          * Returns an array of html code of the following checkboxes:
1867          * minor and watch
1868          *
1869          * @param $tabindex Current tabindex
1870          * @param $skin Skin object
1871          * @param $checked Array of checkbox => bool, where bool indicates the checked
1872          *                 status of the checkbox
1873          *
1874          * @return array
1875          */
1876         public static function getCheckboxes( &$tabindex, $skin, $checked ) {
1877                 global $wgUser;
1878
1879                 $checkboxes = array();
1880
1881                 $checkboxes['minor'] = '';
1882                 $minorLabel = wfMsgExt('minoredit', array('parseinline'));
1883                 if ( $wgUser->isAllowed('minoredit') ) {
1884                         $attribs = array(
1885                                 'tabindex'  => ++$tabindex,
1886                                 'accesskey' => wfMsg( 'accesskey-minoredit' ),
1887                                 'id'        => 'wpMinoredit',
1888                         );
1889                         $checkboxes['minor'] =
1890                                 Xml::check( 'wpMinoredit', $checked['minor'], $attribs ) .
1891                                 "&nbsp;<label for='wpMinoredit'".$skin->tooltipAndAccesskey('minoredit').">{$minorLabel}</label>";
1892                 }
1893
1894                 $watchLabel = wfMsgExt('watchthis', array('parseinline'));
1895                 $checkboxes['watch'] = '';
1896                 if ( $wgUser->isLoggedIn() ) {
1897                         $attribs = array(
1898                                 'tabindex'  => ++$tabindex,
1899                                 'accesskey' => wfMsg( 'accesskey-watch' ),
1900                                 'id'        => 'wpWatchthis',
1901                         );
1902                         $checkboxes['watch'] =
1903                                 Xml::check( 'wpWatchthis', $checked['watch'], $attribs ) .
1904                                 "&nbsp;<label for='wpWatchthis'".$skin->tooltipAndAccesskey('watch').">{$watchLabel}</label>";
1905                 }
1906                 return $checkboxes;
1907         }
1908
1909         /**
1910          * Returns an array of html code of the following buttons:
1911          * save, diff, preview and live
1912          *
1913          * @param $tabindex Current tabindex
1914          *
1915          * @return array
1916          */
1917         public function getEditButtons(&$tabindex) {
1918                 global $wgLivePreview, $wgUser;
1919
1920                 $buttons = array();
1921
1922                 $temp = array(
1923                         'id'        => 'wpSave',
1924                         'name'      => 'wpSave',
1925                         'type'      => 'submit',
1926                         'tabindex'  => ++$tabindex,
1927                         'value'     => wfMsg('savearticle'),
1928                         'accesskey' => wfMsg('accesskey-save'),
1929                         'title'     => wfMsg( 'tooltip-save' ).' ['.wfMsg( 'accesskey-save' ).']',
1930                 );
1931                 $buttons['save'] = wfElement('input', $temp, '');
1932
1933                 ++$tabindex; // use the same for preview and live preview
1934                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
1935                         $temp = array(
1936                                 'id'        => 'wpPreview',
1937                                 'name'      => 'wpPreview',
1938                                 'type'      => 'submit',
1939                                 'tabindex'  => $tabindex,
1940                                 'value'     => wfMsg('showpreview'),
1941                                 'accesskey' => '',
1942                                 'title'     => wfMsg( 'tooltip-preview' ).' ['.wfMsg( 'accesskey-preview' ).']',
1943                                 'style'     => 'display: none;',
1944                         );
1945                         $buttons['preview'] = wfElement('input', $temp, '');
1946
1947                         $temp = array(
1948                                 'id'        => 'wpLivePreview',
1949                                 'name'      => 'wpLivePreview',
1950                                 'type'      => 'submit',
1951                                 'tabindex'  => $tabindex,
1952                                 'value'     => wfMsg('showlivepreview'),
1953                                 'accesskey' => wfMsg('accesskey-preview'),
1954                                 'title'     => '',
1955                                 'onclick'   => $this->doLivePreviewScript(),
1956                         );
1957                         $buttons['live'] = wfElement('input', $temp, '');
1958                 } else {
1959                         $temp = array(
1960                                 'id'        => 'wpPreview',
1961                                 'name'      => 'wpPreview',
1962                                 'type'      => 'submit',
1963                                 'tabindex'  => $tabindex,
1964                                 'value'     => wfMsg('showpreview'),
1965                                 'accesskey' => wfMsg('accesskey-preview'),
1966                                 'title'     => wfMsg( 'tooltip-preview' ).' ['.wfMsg( 'accesskey-preview' ).']',
1967                         );
1968                         $buttons['preview'] = wfElement('input', $temp, '');
1969                         $buttons['live'] = '';
1970                 }
1971
1972                 $temp = array(
1973                         'id'        => 'wpDiff',
1974                         'name'      => 'wpDiff',
1975                         'type'      => 'submit',
1976                         'tabindex'  => ++$tabindex,
1977                         'value'     => wfMsg('showdiff'),
1978                         'accesskey' => wfMsg('accesskey-diff'),
1979                         'title'     => wfMsg( 'tooltip-diff' ).' ['.wfMsg( 'accesskey-diff' ).']',
1980                 );
1981                 $buttons['diff'] = wfElement('input', $temp, '');
1982
1983                 wfRunHooks( 'EditPageBeforeEditButtons', array( &$this, &$buttons ) );
1984                 return $buttons;
1985         }
1986
1987         /**
1988          * Output preview text only. This can be sucked into the edit page
1989          * via JavaScript, and saves the server time rendering the skin as
1990          * well as theoretically being more robust on the client (doesn't
1991          * disturb the edit box's undo history, won't eat your text on
1992          * failure, etc).
1993          *
1994          * @todo This doesn't include category or interlanguage links.
1995          *       Would need to enhance it a bit, <s>maybe wrap them in XML
1996          *       or something...</s> that might also require more skin
1997          *       initialization, so check whether that's a problem.
1998          */
1999         function livePreview() {
2000                 global $wgOut;
2001                 $wgOut->disable();
2002                 header( 'Content-type: text/xml; charset=utf-8' );
2003                 header( 'Cache-control: no-cache' );
2004
2005                 $previewText = $this->getPreviewText();
2006                 #$categories = $skin->getCategoryLinks();
2007
2008                 $s =
2009                 '<?xml version="1.0" encoding="UTF-8" ?>' . "\n" .
2010                 Xml::tags( 'livepreview', null,
2011                         Xml::element( 'preview', null, $previewText )
2012                         #.      Xml::element( 'category', null, $categories )
2013                 );
2014                 echo $s;
2015         }
2016
2017
2018         /**
2019          * Get a diff between the current contents of the edit box and the
2020          * version of the page we're editing from.
2021          *
2022          * If this is a section edit, we'll replace the section as for final
2023          * save and then make a comparison.
2024          */
2025         function showDiff() {
2026                 $oldtext = $this->mArticle->fetchContent();
2027                 $newtext = $this->mArticle->replaceSection(
2028                         $this->section, $this->textbox1, $this->summary, $this->edittime );
2029                 $newtext = $this->mArticle->preSaveTransform( $newtext );
2030                 $oldtitle = wfMsgExt( 'currentrev', array('parseinline') );
2031                 $newtitle = wfMsgExt( 'yourtext', array('parseinline') );
2032                 if ( $oldtext !== false  || $newtext != '' ) {
2033                         $de = new DifferenceEngine( $this->mTitle );
2034                         $de->setText( $oldtext, $newtext );
2035                         $difftext = $de->getDiff( $oldtitle, $newtitle );
2036                         $de->showDiffStyle();
2037                 } else {
2038                         $difftext = '';
2039                 }
2040
2041                 global $wgOut;
2042                 $wgOut->addHtml( '<div id="wikiDiff">' . $difftext . '</div>' );
2043         }
2044
2045         /**
2046          * Filter an input field through a Unicode de-armoring process if it
2047          * came from an old browser with known broken Unicode editing issues.
2048          *
2049          * @param WebRequest $request
2050          * @param string $field
2051          * @return string
2052          * @private
2053          */
2054         function safeUnicodeInput( $request, $field ) {
2055                 $text = rtrim( $request->getText( $field ) );
2056                 return $request->getBool( 'safemode' )
2057                         ? $this->unmakesafe( $text )
2058                         : $text;
2059         }
2060
2061         /**
2062          * Filter an output field through a Unicode armoring process if it is
2063          * going to an old browser with known broken Unicode editing issues.
2064          *
2065          * @param string $text
2066          * @return string
2067          * @private
2068          */
2069         function safeUnicodeOutput( $text ) {
2070                 global $wgContLang;
2071                 $codedText = $wgContLang->recodeForEdit( $text );
2072                 return $this->checkUnicodeCompliantBrowser()
2073                         ? $codedText
2074                         : $this->makesafe( $codedText );
2075         }
2076
2077         /**
2078          * A number of web browsers are known to corrupt non-ASCII characters
2079          * in a UTF-8 text editing environment. To protect against this,
2080          * detected browsers will be served an armored version of the text,
2081          * with non-ASCII chars converted to numeric HTML character references.
2082          *
2083          * Preexisting such character references will have a 0 added to them
2084          * to ensure that round-trips do not alter the original data.
2085          *
2086          * @param string $invalue
2087          * @return string
2088          * @private
2089          */
2090         function makesafe( $invalue ) {
2091                 // Armor existing references for reversability.
2092                 $invalue = strtr( $invalue, array( "&#x" => "&#x0" ) );
2093
2094                 $bytesleft = 0;
2095                 $result = "";
2096                 $working = 0;
2097                 for( $i = 0; $i < strlen( $invalue ); $i++ ) {
2098                         $bytevalue = ord( $invalue{$i} );
2099                         if( $bytevalue <= 0x7F ) { //0xxx xxxx
2100                                 $result .= chr( $bytevalue );
2101                                 $bytesleft = 0;
2102                         } elseif( $bytevalue <= 0xBF ) { //10xx xxxx
2103                                 $working = $working << 6;
2104                                 $working += ($bytevalue & 0x3F);
2105                                 $bytesleft--;
2106                                 if( $bytesleft <= 0 ) {
2107                                         $result .= "&#x" . strtoupper( dechex( $working ) ) . ";";
2108                                 }
2109                         } elseif( $bytevalue <= 0xDF ) { //110x xxxx
2110                                 $working = $bytevalue & 0x1F;
2111                                 $bytesleft = 1;
2112                         } elseif( $bytevalue <= 0xEF ) { //1110 xxxx
2113                                 $working = $bytevalue & 0x0F;
2114                                 $bytesleft = 2;
2115                         } else { //1111 0xxx
2116                                 $working = $bytevalue & 0x07;
2117                                 $bytesleft = 3;
2118                         }
2119                 }
2120                 return $result;
2121         }
2122
2123         /**
2124          * Reverse the previously applied transliteration of non-ASCII characters
2125          * back to UTF-8. Used to protect data from corruption by broken web browsers
2126          * as listed in $wgBrowserBlackList.
2127          *
2128          * @param string $invalue
2129          * @return string
2130          * @private
2131          */
2132         function unmakesafe( $invalue ) {
2133                 $result = "";
2134                 for( $i = 0; $i < strlen( $invalue ); $i++ ) {
2135                         if( ( substr( $invalue, $i, 3 ) == "&#x" ) && ( $invalue{$i+3} != '0' ) ) {
2136                                 $i += 3;
2137                                 $hexstring = "";
2138                                 do {
2139                                         $hexstring .= $invalue{$i};
2140                                         $i++;
2141                                 } while( ctype_xdigit( $invalue{$i} ) && ( $i < strlen( $invalue ) ) );
2142
2143                                 // Do some sanity checks. These aren't needed for reversability,
2144                                 // but should help keep the breakage down if the editor
2145                                 // breaks one of the entities whilst editing.
2146                                 if ((substr($invalue,$i,1)==";") and (strlen($hexstring) <= 6)) {
2147                                         $codepoint = hexdec($hexstring);
2148                                         $result .= codepointToUtf8( $codepoint );
2149                                 } else {
2150                                         $result .= "&#x" . $hexstring . substr( $invalue, $i, 1 );
2151                                 }
2152                         } else {
2153                                 $result .= substr( $invalue, $i, 1 );
2154                         }
2155                 }
2156                 // reverse the transform that we made for reversability reasons.
2157                 return strtr( $result, array( "&#x0" => "&#x" ) );
2158         }
2159
2160         function noCreatePermission() {
2161                 global $wgOut;
2162                 $wgOut->setPageTitle( wfMsg( 'nocreatetitle' ) );
2163                 $wgOut->addWikiMsg( 'nocreatetext' );
2164         }
2165
2166         /**
2167          * If there are rows in the deletion log for this page, show them,
2168          * along with a nice little note for the user
2169          *
2170          * @param OutputPage $out
2171          */
2172         private function showDeletionLog( $out ) {
2173                 $title = $this->mTitle;
2174                 $reader = new LogReader(
2175                         new FauxRequest(
2176                                 array(
2177                                         'page' => $title->getPrefixedText(),
2178                                         'type' => 'delete',
2179                                         )
2180                         )
2181                 );
2182                 if( $reader->hasRows() ) {
2183                         $out->addHtml( '<div id="mw-recreate-deleted-warn">' );
2184                         $out->addWikiMsg( 'recreate-deleted-warn' );
2185                         $viewer = new LogViewer( $reader );
2186                         $viewer->showList( $out );
2187                         $out->addHtml( '</div>' );
2188                 }
2189         }
2190
2191         /**
2192          * Attempt submission
2193          * @return bool false if output is done, true if the rest of the form should be displayed
2194          */
2195         function attemptSave() {
2196                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
2197
2198                 $resultDetails = false;
2199                 $value = $this->internalAttemptSave( $resultDetails, $wgUser->isAllowed('bot') && $wgRequest->getBool('bot', true) );
2200
2201                 if( $value == self::AS_SUCCESS_UPDATE || $value == self::AS_SUCCESS_NEW_ARTICLE ) {
2202                         $this->didSave = true;
2203                 }
2204
2205                 switch ($value) {
2206                         case self::AS_HOOK_ERROR_EXPECTED:
2207                         case self::AS_CONTENT_TOO_BIG:
2208                         case self::AS_ARTICLE_WAS_DELETED:
2209                         case self::AS_CONFLICT_DETECTED:
2210                         case self::AS_SUMMARY_NEEDED:
2211                         case self::AS_TEXTBOX_EMPTY:
2212                         case self::AS_MAX_ARTICLE_SIZE_EXCEEDED:
2213                         case self::AS_END:
2214                                 return true;
2215
2216                         case self::AS_HOOK_ERROR:
2217                         case self::AS_FILTERING:
2218                         case self::AS_SUCCESS_NEW_ARTICLE:
2219                         case self::AS_SUCCESS_UPDATE:
2220                                 return false;
2221
2222                         case self::AS_SPAM_ERROR:
2223                                 $this->spamPage ( $resultDetails['spam'] );
2224                                 return false;
2225
2226                         case self::AS_BLOCKED_PAGE_FOR_USER:
2227                                 $this->blockedPage();
2228                                 return false;
2229
2230                         case self::AS_IMAGE_REDIRECT_ANON:
2231                                 $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
2232                                 return false;
2233
2234                         case self::AS_READ_ONLY_PAGE_ANON:
2235                                 $this->userNotLoggedInPage();
2236                                 return false;
2237
2238                         case self::AS_READ_ONLY_PAGE_LOGGED:
2239                         case self::AS_READ_ONLY_PAGE:
2240                                 $wgOut->readOnlyPage();
2241                                 return false;
2242
2243                         case self::AS_RATE_LIMITED:
2244                                 $wgOut->rateLimited();
2245                                 return false;
2246
2247                         case self::AS_NO_CREATE_PERMISSION;
2248                                 $this->noCreatePermission();
2249                                 return;
2250
2251                         case self::AS_BLANK_ARTICLE:
2252                                 $wgOut->redirect( $wgTitle->getFullURL() );
2253                                 return false;
2254
2255                         case self::AS_IMAGE_REDIRECT_LOGGED:
2256                                 $wgOut->permissionRequired( 'upload' );
2257                                 return false;
2258                 }
2259         }
2260 }