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, $wgMessageCache;
 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                                 $wgMessageCache->loadAllMessages();
 122                                 # If this is a system message, get the default text.
 123                                 $text = wfMsgWeirdKey ( $this->mTitle->getText() ) ;
 124                         } else {
 125                                 # If requested, preload some text.
 126                                 $text = $this->getPreloadedText( $preload );
 127                         }
 128                         # We used to put MediaWiki:Newarticletext here if
 129                         # $text was empty at this point.
 130                         # This is now shown above the edit box instead.
 131                 } else {
 132                         // FIXME: may be better to use Revision class directly
 133                         // But don't mess with it just yet. Article knows how to
 134                         // fetch the page record from the high-priority server,
 135                         // which is needed to guarantee we don't pick up lagged
 136                         // information.
 137
 138                         $text = $this->mArticle->getContent();
 139
 140                         if ($undo > 0 && $undoafter > 0 && $undo < $undoafter) {
 141                                 # If they got undoafter and undo round the wrong way, switch them
 142                                 list( $undo, $undoafter ) = array( $undoafter, $undo );
 143                         }
 144
 145                         if ( $undo > 0 && $undo > $undoafter ) {
 146                                 # Undoing a specific edit overrides section editing; section-editing
 147                                 # doesn't work with undoing.
 148                                 if ( $undoafter ) {
 149                                         $undorev = Revision::newFromId($undo);
 150                                         $oldrev = Revision::newFromId($undoafter);
 151                                 } else {
 152                                         $undorev = Revision::newFromId($undo);
 153                                         $oldrev = $undorev ? $undorev->getPrevious() : null;
 154                                 }
 155
 156                                 #Sanity check, make sure it's the right page.
 157                                 # Otherwise, $text will be left as-is.
 158                                 if ( !is_null($undorev) && !is_null($oldrev) && $undorev->getPage()==$oldrev->getPage() && $undorev->getPage()==$this->mArticle->getID() ) {
 159                                         $undorev_text = $undorev->getText();
 160                                         $oldrev_text = $oldrev->getText();
 161                                         $currev_text = $text;
 162
 163                                         #No use doing a merge if it's just a straight revert.
 164                                         if ( $currev_text != $undorev_text ) {
 165                                                 $result = wfMerge($undorev_text, $oldrev_text, $currev_text, $text);
 166                                         } else {
 167                                                 $text = $oldrev_text;
 168                                                 $result = true;
 169                                         }
 170                                 } else {
 171                                         // Failed basic sanity checks.
 172                                         // Older revisions may have been removed since the link
 173                                         // was created, or we may simply have got bogus input.
 174                                         $result = false;
 175                                 }
 176
 177                                 if( $result ) {
 178                                         # Inform the user of our success and set an automatic edit summary
 179                                         $this->editFormPageTop .= $wgOut->parse( wfMsgNoTrans( 'undo-success' ) );
 180                                         $firstrev = $oldrev->getNext();
 181                                         # If we just undid one rev, use an autosummary
 182                                         if ( $firstrev->mId == $undo ) {
 183                                                 $this->summary = wfMsgForContent('undo-summary', $undo, $undorev->getUserText());
 184                                         }
 185                                         $this->formtype = 'diff';
 186                                 } else {
 187                                         # Warn the user that something went wrong
 188                                         $this->editFormPageTop .= $wgOut->parse( wfMsgNoTrans( 'undo-failure' ) );
 189                                 }
 190                         } else if( $section != '' ) {
 191                                 if( $section == 'new' ) {
 192                                         $text = $this->getPreloadedText( $preload );
 193                                 } else {
 194                                         $text = $wgParser->getSection( $text, $section, $def_text );
 195                                 }
 196                         }
 197                 }
 198
 199                 wfProfileOut( __METHOD__ );
 200                 return $text;
 201         }
 202
 203         /**
 204          * Get the contents of a page from its title and remove includeonly tags
 205          *
 206          * @param $preload String: the title of the page.
 207          * @return string The contents of the page.
 208          */
 209         private function getPreloadedText($preload) {
 210                 if ( $preload === '' )
 211                         return '';
 212                 else {
 213                         $preloadTitle = Title::newFromText( $preload );
 214                         if ( isset( $preloadTitle ) && $preloadTitle->userCanRead() ) {
 215                                 $rev=Revision::newFromTitle($preloadTitle);
 216                                 if ( is_object( $rev ) ) {
 217                                         $text = $rev->getText();
 218                                         // TODO FIXME: AAAAAAAAAAA, this shouldn't be implementing
 219                                         // its own mini-parser! -ævar
 220                                         $text = preg_replace( '~</?includeonly>~', '', $text );
 221                                         return $text;
 222                                 } else
 223                                         return '';
 224                         }
 225                 }
 226         }
 227
 228         /**
 229          * This is the function that extracts metadata from the article body on the first view.
 230          * To turn the feature on, set $wgUseMetadataEdit = true ; in LocalSettings
 231          *  and set $wgMetadataWhitelist to the *full* title of the template whitelist
 232          */
 233         function extractMetaDataFromArticle () {
 234                 global $wgUseMetadataEdit , $wgMetadataWhitelist , $wgLang ;
 235                 $this->mMetaData = '' ;
 236                 if ( !$wgUseMetadataEdit ) return ;
 237                 if ( $wgMetadataWhitelist == '' ) return ;
 238                 $s = '' ;
 239                 $t = $this->getContent();
 240
 241                 # MISSING : <nowiki> filtering
 242
 243                 # Categories and language links
 244                 $t = explode ( "\n" , $t ) ;
 245                 $catlow = strtolower ( $wgLang->getNsText ( NS_CATEGORY ) ) ;
 246                 $cat = $ll = array() ;
 247                 foreach ( $t AS $key => $x )
 248                 {
 249                         $y = trim ( strtolower ( $x ) ) ;
 250                         while ( substr ( $y , 0 , 2 ) == '[[' )
 251                         {
 252                                 $y = explode ( ']]' , trim ( $x ) ) ;
 253                                 $first = array_shift ( $y ) ;
 254                                 $first = explode ( ':' , $first ) ;
 255                                 $ns = array_shift ( $first ) ;
 256                                 $ns = trim ( str_replace ( '[' , '' , $ns ) ) ;
 257                                 if ( strlen ( $ns ) == 2 OR strtolower ( $ns ) == $catlow )
 258                                 {
 259                                         $add = '[[' . $ns . ':' . implode ( ':' , $first ) . ']]' ;
 260                                         if ( strtolower ( $ns ) == $catlow ) $cat[] = $add ;
 261                                         else $ll[] = $add ;
 262                                         $x = implode ( ']]' , $y ) ;
 263                                         $t[$key] = $x ;
 264                                         $y = trim ( strtolower ( $x ) ) ;
 265                                 }
 266                         }
 267                 }
 268                 if ( count ( $cat ) ) $s .= implode ( ' ' , $cat ) . "\n" ;
 269                 if ( count ( $ll ) ) $s .= implode ( ' ' , $ll ) . "\n" ;
 270                 $t = implode ( "\n" , $t ) ;
 271
 272                 # Load whitelist
 273                 $sat = array () ; # stand-alone-templates; must be lowercase
 274                 $wl_title = Title::newFromText ( $wgMetadataWhitelist ) ;
 275                 $wl_article = new Article ( $wl_title ) ;
 276                 $wl = explode ( "\n" , $wl_article->getContent() ) ;
 277                 foreach ( $wl AS $x )
 278                 {
 279                         $isentry = false ;
 280                         $x = trim ( $x ) ;
 281                         while ( substr ( $x , 0 , 1 ) == '*' )
 282                         {
 283                                 $isentry = true ;
 284                                 $x = trim ( substr ( $x , 1 ) ) ;
 285                         }
 286                         if ( $isentry )
 287                         {
 288                                 $sat[] = strtolower ( $x ) ;
 289                         }
 290
 291                 }
 292
 293                 # Templates, but only some
 294                 $t = explode ( '{{' , $t ) ;
 295                 $tl = array () ;
 296                 foreach ( $t AS $key => $x )
 297                 {
 298                         $y = explode ( '}}' , $x , 2 ) ;
 299                         if ( count ( $y ) == 2 )
 300                         {
 301                                 $z = $y[0] ;
 302                                 $z = explode ( '|' , $z ) ;
 303                                 $tn = array_shift ( $z ) ;
 304                                 if ( in_array ( strtolower ( $tn ) , $sat ) )
 305                                 {
 306                                         $tl[] = '{{' . $y[0] . '}}' ;
 307                                         $t[$key] = $y[1] ;
 308                                         $y = explode ( '}}' , $y[1] , 2 ) ;
 309                                 }
 310                                 else $t[$key] = '{{' . $x ;
 311                         }
 312                         else if ( $key != 0 ) $t[$key] = '{{' . $x ;
 313                         else $t[$key] = $x ;
 314                 }
 315                 if ( count ( $tl ) ) $s .= implode ( ' ' , $tl ) ;
 316                 $t = implode ( '' , $t ) ;
 317
 318                 $t = str_replace ( "\n\n\n" , "\n" , $t ) ;
 319                 $this->mArticle->mContent = $t ;
 320                 $this->mMetaData = $s ;
 321         }
 322
 323         protected function wasDeletedSinceLastEdit() {
 324                 /* Note that we rely on the logging table, which hasn't been always there,
 325                  * but that doesn't matter, because this only applies to brand new
 326                  * deletes.
 327                  */
 328                 if ( $this->deletedSinceEdit )
 329                         return true;
 330                 if ( $this->mTitle->isDeleted() ) {
 331                         $this->lastDelete = $this->getLastDelete();
 332                         if ( !is_null($this->lastDelete) ) {
 333                                 $deletetime = $this->lastDelete->log_timestamp;
 334                                 if ( ($deletetime - $this->starttime) > 0 ) {
 335                                         $this->deletedSinceEdit = true;
 336                                 }
 337                         }
 338                 }
 339                 return $this->deletedSinceEdit;
 340         }
 341
 342         function submit() {
 343                 $this->edit();
 344         }
 345
 346         /**
 347          * This is the function that gets called for "action=edit". It
 348          * sets up various member variables, then passes execution to
 349          * another function, usually showEditForm()
 350          *
 351          * The edit form is self-submitting, so that when things like
 352          * preview and edit conflicts occur, we get the same form back
 353          * with the extra stuff added.  Only when the final submission
 354          * is made and all is well do we actually save and redirect to
 355          * the newly-edited page.
 356          */
 357         function edit() {
 358                 global $wgOut, $wgUser, $wgRequest;
 359
 360                 if ( !wfRunHooks( 'AlternateEdit', array( &$this ) ) )
 361                         return;
 362
 363                 wfProfileIn( __METHOD__ );
 364                 wfDebug( __METHOD__.": enter\n" );
 365
 366                 // this is not an article
 367                 $wgOut->setArticleFlag(false);
 368
 369                 $this->importFormData( $wgRequest );
 370                 $this->firsttime = false;
 371
 372                 if( $this->live ) {
 373                         $this->livePreview();
 374                         wfProfileOut( __METHOD__ );
 375                         return;
 376                 }
 377
 378                 if( wfReadOnly() ) {
 379                         $this->readOnlyPage( $this->getContent() );
 380                         wfProfileOut( __METHOD__ );
 381                         return;
 382                 }
 383
 384                 $permErrors = $this->mTitle->getUserPermissionsErrors('edit', $wgUser);
 385                 if( !$this->mTitle->exists() ) {
 386                         $permErrors = array_merge( $permErrors,
 387                                 wfArrayDiff2( $this->mTitle->getUserPermissionsErrors('create', $wgUser), $permErrors ) );
 388                 }
 389
 390                 # Ignore some permissions errors.
 391                 $remove = array();
 392                 foreach( $permErrors as $error ) {
 393                         if ( ( $this->preview || $this->diff ) &&
 394                                 ($error[0] == 'blockedtext' || $error[0] == 'autoblockedtext'))
 395                         {
 396                                 // Don't worry about blocks when previewing/diffing
 397                                 $remove[] = $error;
 398                         }
 399
 400                         if ($error[0] == 'readonlytext')
 401                         {
 402                                 if ($this->edit) {
 403                                         $this->formtype = 'preview';
 404                                 } elseif ($this->save || $this->preview || $this->diff) {
 405                                         $remove[] = $error;
 406                                 }
 407                         }
 408                 }
 409                 $permErrors = wfArrayDiff2( $permErrors, $remove );
 410
 411                 if ( $permErrors ) {
 412                         wfDebug( __METHOD__.": User can't edit\n" );
 413                         $this->readOnlyPage( $this->getContent(), true, $permErrors );
 414                         wfProfileOut( __METHOD__ );
 415                         return;
 416                 } else {
 417                         if ( $this->save ) {
 418                                 $this->formtype = 'save';
 419                         } else if ( $this->preview ) {
 420                                 $this->formtype = 'preview';
 421                         } else if ( $this->diff ) {
 422                                 $this->formtype = 'diff';
 423                         } else { # First time through
 424                                 $this->firsttime = true;
 425                                 if( $this->previewOnOpen() ) {
 426                                         $this->formtype = 'preview';
 427                                 } else {
 428                                         $this->extractMetaDataFromArticle () ;
 429                                         $this->formtype = 'initial';
 430                                 }
 431                         }
 432                 }
 433
 434                 wfProfileIn( __METHOD__."-business-end" );
 435
 436                 $this->isConflict = false;
 437                 // css / js subpages of user pages get a special treatment
 438                 $this->isCssJsSubpage      = $this->mTitle->isCssJsSubpage();
 439                 $this->isValidCssJsSubpage = $this->mTitle->isValidCssJsSubpage();
 440
 441                 # Show applicable editing introductions
 442                 if( $this->formtype == 'initial' || $this->firsttime )
 443                         $this->showIntro();
 444
 445                 if( $this->mTitle->isTalkPage() ) {
 446                         $wgOut->addWikiMsg( 'talkpagetext' );
 447                 }
 448
 449                 # Attempt submission here.  This will check for edit conflicts,
 450                 # and redundantly check for locked database, blocked IPs, etc.
 451                 # that edit() already checked just in case someone tries to sneak
 452                 # in the back door with a hand-edited submission URL.
 453
 454                 if ( 'save' == $this->formtype ) {
 455                         if ( !$this->attemptSave() ) {
 456                                 wfProfileOut( __METHOD__."-business-end" );
 457                                 wfProfileOut( __METHOD__ );
 458                                 return;
 459                         }
 460                 }
 461
 462                 # First time through: get contents, set time for conflict
 463                 # checking, etc.
 464                 if ( 'initial' == $this->formtype || $this->firsttime ) {
 465                         if ($this->initialiseForm() === false) {
 466                                 $this->noSuchSectionPage();
 467                                 wfProfileOut( __METHOD__."-business-end" );
 468                                 wfProfileOut( __METHOD__ );
 469                                 return;
 470                         }
 471                         if( !$this->mTitle->getArticleId() )
 472                                 wfRunHooks( 'EditFormPreloadText', array( &$this->textbox1, &$this->mTitle ) );
 473                 }
 474
 475                 $this->showEditForm();
 476                 wfProfileOut( __METHOD__."-business-end" );
 477                 wfProfileOut( __METHOD__ );
 478         }
 479
 480         /**
 481          * Show a read-only error
 482          * Parameters are the same as OutputPage:readOnlyPage()
 483          * Redirect to the article page if redlink=1
 484          */
 485         function readOnlyPage( $source = null, $protected = false, $reasons = array() ) {
 486                 global $wgRequest, $wgOut;
 487                 if ( $wgRequest->getBool( 'redlink' ) ) {
 488                         // The edit page was reached via a red link.
 489                         // Redirect to the article page and let them click the edit tab if
 490                         // they really want a permission error.
 491                         $wgOut->redirect( $this->mTitle->getFullUrl() );
 492                 } else {
 493                         $wgOut->readOnlyPage( $source, $protected, $reasons );
 494                 }
 495         }
 496
 497         /**
 498          * Should we show a preview when the edit form is first shown?
 499          *
 500          * @return bool
 501          */
 502         private function previewOnOpen() {
 503                 global $wgRequest, $wgUser;
 504                 if( $wgRequest->getVal( 'preview' ) == 'yes' ) {
 505                         // Explicit override from request
 506                         return true;
 507                 } elseif( $wgRequest->getVal( 'preview' ) == 'no' ) {
 508                         // Explicit override from request
 509                         return false;
 510                 } elseif( $this->section == 'new' ) {
 511                         // Nothing *to* preview for new sections
 512                         return false;
 513                 } elseif( ( $wgRequest->getVal( 'preload' ) !== '' || $this->mTitle->exists() ) && $wgUser->getOption( 'previewonfirst' ) ) {
 514                         // Standard preference behaviour
 515                         return true;
 516                 } elseif( !$this->mTitle->exists() && $this->mTitle->getNamespace() == NS_CATEGORY ) {
 517                         // Categories are special
 518                         return true;
 519                 } else {
 520                         return false;
 521                 }
 522         }
 523
 524         /**
 525          * @todo document
 526          * @param $request
 527          */
 528         function importFormData( &$request ) {
 529                 global $wgLang, $wgUser;
 530                 $fname = 'EditPage::importFormData';
 531                 wfProfileIn( $fname );
 532
 533                 # Section edit can come from either the form or a link
 534                 $this->section = $request->getVal( 'wpSection', $request->getVal( 'section' ) );
 535
 536                 if( $request->wasPosted() ) {
 537                         # These fields need to be checked for encoding.
 538                         # Also remove trailing whitespace, but don't remove _initial_
 539                         # whitespace from the text boxes. This may be significant formatting.
 540                         $this->textbox1 = $this->safeUnicodeInput( $request, 'wpTextbox1' );
 541                         $this->textbox2 = $this->safeUnicodeInput( $request, 'wpTextbox2' );
 542                         $this->mMetaData = rtrim( $request->getText( 'metadata' ) );
 543                         # Truncate for whole multibyte characters. +5 bytes for ellipsis
 544                         $this->summary = $wgLang->truncate( $request->getText( 'wpSummary'  ), 250 );
 545
 546                         # Remove extra headings from summaries and new sections.
 547                         $this->summary = preg_replace('/^\s*=+\s*(.*?)\s*=+\s*$/', '$1', $this->summary);
 548
 549                         $this->edittime = $request->getVal( 'wpEdittime' );
 550                         $this->starttime = $request->getVal( 'wpStarttime' );
 551
 552                         $this->scrolltop = $request->getIntOrNull( 'wpScrolltop' );
 553
 554                         if( is_null( $this->edittime ) ) {
 555                                 # If the form is incomplete, force to preview.
 556                                 wfDebug( "$fname: Form data appears to be incomplete\n" );
 557                                 wfDebug( "POST DATA: " . var_export( $_POST, true ) . "\n" );
 558                                 $this->preview  = true;
 559                         } else {
 560                                 /* Fallback for live preview */
 561                                 $this->preview = $request->getCheck( 'wpPreview' ) || $request->getCheck( 'wpLivePreview' );
 562                                 $this->diff = $request->getCheck( 'wpDiff' );
 563
 564                                 // Remember whether a save was requested, so we can indicate
 565                                 // if we forced preview due to session failure.
 566                                 $this->mTriedSave = !$this->preview;
 567
 568                                 if ( $this->tokenOk( $request ) ) {
 569                                         # Some browsers will not report any submit button
 570                                         # if the user hits enter in the comment box.
 571                                         # The unmarked state will be assumed to be a save,
 572                                         # if the form seems otherwise complete.
 573                                         wfDebug( "$fname: Passed token check.\n" );
 574                                 } else if ( $this->diff ) {
 575                                         # Failed token check, but only requested "Show Changes".
 576                                         wfDebug( "$fname: Failed token check; Show Changes requested.\n" );
 577                                 } else {
 578                                         # Page might be a hack attempt posted from
 579                                         # an external site. Preview instead of saving.
 580                                         wfDebug( "$fname: Failed token check; forcing preview\n" );
 581                                         $this->preview = true;
 582                                 }
 583                         }
 584                         $this->save = !$this->preview && !$this->diff;
 585                         if( !preg_match( '/^\d{14}$/', $this->edittime )) {
 586                                 $this->edittime = null;
 587                         }
 588
 589                         if( !preg_match( '/^\d{14}$/', $this->starttime )) {
 590                                 $this->starttime = null;
 591                         }
 592
 593                         $this->recreate  = $request->getCheck( 'wpRecreate' );
 594
 595                         $this->minoredit = $request->getCheck( 'wpMinoredit' );
 596                         $this->watchthis = $request->getCheck( 'wpWatchthis' );
 597
 598                         # Don't force edit summaries when a user is editing their own user or talk page
 599                         if( ( $this->mTitle->mNamespace == NS_USER || $this->mTitle->mNamespace == NS_USER_TALK ) && $this->mTitle->getText() == $wgUser->getName() ) {
 600                                 $this->allowBlankSummary = true;
 601                         } else {
 602                                 $this->allowBlankSummary = $request->getBool( 'wpIgnoreBlankSummary' );
 603                         }
 604
 605                         $this->autoSumm = $request->getText( 'wpAutoSummary' );
 606                 } else {
 607                         # Not a posted form? Start with nothing.
 608                         wfDebug( "$fname: Not a posted form.\n" );
 609                         $this->textbox1  = '';
 610                         $this->textbox2  = '';
 611                         $this->mMetaData = '';
 612                         $this->summary   = '';
 613                         $this->edittime  = '';
 614                         $this->starttime = wfTimestampNow();
 615                         $this->edit      = false;
 616                         $this->preview   = false;
 617                         $this->save      = false;
 618                         $this->diff      = false;
 619                         $this->minoredit = false;
 620                         $this->watchthis = false;
 621                         $this->recreate  = false;
 622
 623                         if ( $this->section == 'new' && $request->getVal( 'preloadtitle' ) ) {
 624                                 $this->summary = $request->getVal( 'preloadtitle' );
 625                         }
 626                 }
 627
 628                 $this->oldid = $request->getInt( 'oldid' );
 629
 630                 $this->live = $request->getCheck( 'live' );
 631                 $this->editintro = $request->getText( 'editintro' );
 632
 633                 wfProfileOut( $fname );
 634         }
 635
 636         /**
 637          * Make sure the form isn't faking a user's credentials.
 638          *
 639          * @param $request WebRequest
 640          * @return bool
 641          * @private
 642          */
 643         function tokenOk( &$request ) {
 644                 global $wgUser;
 645                 $token = $request->getVal( 'wpEditToken' );
 646                 $this->mTokenOk = $wgUser->matchEditToken( $token );
 647                 $this->mTokenOkExceptSuffix = $wgUser->matchEditTokenNoSuffix( $token );
 648                 return $this->mTokenOk;
 649         }
 650
 651         /**
 652          * Show all applicable editing introductions
 653          */
 654         private function showIntro() {
 655                 global $wgOut, $wgUser;
 656                 if( $this->suppressIntro )
 657                         return;
 658
 659                 # Show a warning message when someone creates/edits a user (talk) page but the user does not exists
 660                 if( $this->mTitle->getNamespace() == NS_USER || $this->mTitle->getNamespace() == NS_USER_TALK ) {
 661                         $parts = explode( '/', $this->mTitle->getText(), 2 );
 662                         $username = $parts[0];
 663                         $id = User::idFromName( $username );
 664                         $ip = User::isIP( $username );
 665
 666                         if ( $id == 0 && !$ip ) {
 667                                 $wgOut->wrapWikiMsg( '<div class="mw-userpage-userdoesnotexist error">$1</div>',
 668                                         array( 'userpage-userdoesnotexist', $username ) );
 669                         }
 670                 }
 671
 672                 if( !$this->showCustomIntro() && !$this->mTitle->exists() ) {
 673                         if( $wgUser->isLoggedIn() ) {
 674                                 $wgOut->wrapWikiMsg( '<div class="mw-newarticletext">$1</div>', 'newarticletext' );
 675                         } else {
 676                                 $wgOut->wrapWikiMsg( '<div class="mw-newarticletextanon">$1</div>', 'newarticletextanon' );
 677                         }
 678                         $this->showDeletionLog( $wgOut );
 679                 }
 680         }
 681
 682         /**
 683          * Attempt to show a custom editing introduction, if supplied
 684          *
 685          * @return bool
 686          */
 687         private function showCustomIntro() {
 688                 if( $this->editintro ) {
 689                         $title = Title::newFromText( $this->editintro );
 690                         if( $title instanceof Title && $title->exists() && $title->userCanRead() ) {
 691                                 global $wgOut;
 692                                 $revision = Revision::newFromTitle( $title );
 693                                 $wgOut->addWikiTextTitleTidy( $revision->getText(), $this->mTitle );
 694                                 return true;
 695                         } else {
 696                                 return false;
 697                         }
 698                 } else {
 699                         return false;
 700                 }
 701         }
 702
 703         /**
 704          * Attempt submission (no UI)
 705          * @return one of the constants describing the result
 706          */
 707         function internalAttemptSave( &$result, $bot = false ) {
 708                 global $wgSpamRegex, $wgFilterCallback, $wgUser, $wgOut, $wgParser;
 709                 global $wgMaxArticleSize;
 710
 711                 $fname = 'EditPage::attemptSave';
 712                 wfProfileIn( $fname );
 713                 wfProfileIn( "$fname-checks" );
 714
 715                 if( !wfRunHooks( 'EditPage::attemptSave', array( &$this ) ) )
 716                 {
 717                         wfDebug( "Hook 'EditPage::attemptSave' aborted article saving" );
 718                         return self::AS_HOOK_ERROR;
 719                 }
 720
 721                 # Check image redirect
 722                 if ( $this->mTitle->getNamespace() == NS_IMAGE &&
 723                         Title::newFromRedirect( $this->textbox1 ) instanceof Title &&
 724                         !$wgUser->isAllowed( 'upload' ) ) {
 725                                 if( $wgUser->isAnon() ) {
 726                                         return self::AS_IMAGE_REDIRECT_ANON;
 727                                 } else {
 728                                         return self::AS_IMAGE_REDIRECT_LOGGED;
 729                                 }
 730                 }
 731
 732                 # Reintegrate metadata
 733                 if ( $this->mMetaData != '' ) $this->textbox1 .= "\n" . $this->mMetaData ;
 734                 $this->mMetaData = '' ;
 735
 736                 # Check for spam
 737                 $matches = array();
 738                 if ( $wgSpamRegex && preg_match( $wgSpamRegex, $this->textbox1, $matches ) ) {
 739                         $result['spam'] = $matches[0];
 740                         wfProfileOut( "$fname-checks" );
 741                         wfProfileOut( $fname );
 742                         return self::AS_SPAM_ERROR;
 743                 }
 744                 if ( $wgFilterCallback && $wgFilterCallback( $this->mTitle, $this->textbox1, $this->section ) ) {
 745                         # Error messages or other handling should be performed by the filter function
 746                         wfProfileOut( "$fname-checks" );
 747                         wfProfileOut( $fname );
 748                         return self::AS_FILTERING;
 749                 }
 750                 if ( !wfRunHooks( 'EditFilter', array( $this, $this->textbox1, $this->section, &$this->hookError ) ) ) {
 751                         # Error messages etc. could be handled within the hook...
 752                         wfProfileOut( "$fname-checks" );
 753                         wfProfileOut( $fname );
 754                         return self::AS_HOOK_ERROR;
 755                 } elseif( $this->hookError != '' ) {
 756                         # ...or the hook could be expecting us to produce an error
 757                         wfProfileOut( "$fname-checks" );
 758                         wfProfileOut( $fname );
 759                         return self::AS_HOOK_ERROR_EXPECTED;
 760                 }
 761                 if ( $wgUser->isBlockedFrom( $this->mTitle, false ) ) {
 762                         # Check block state against master, thus 'false'.
 763                         wfProfileOut( "$fname-checks" );
 764                         wfProfileOut( $fname );
 765                         return self::AS_BLOCKED_PAGE_FOR_USER;
 766                 }
 767                 $this->kblength = (int)(strlen( $this->textbox1 ) / 1024);
 768                 if ( $this->kblength > $wgMaxArticleSize ) {
 769                         // Error will be displayed by showEditForm()
 770                         $this->tooBig = true;
 771                         wfProfileOut( "$fname-checks" );
 772                         wfProfileOut( $fname );
 773                         return self::AS_CONTENT_TOO_BIG;
 774                 }
 775
 776                 if ( !$wgUser->isAllowed('edit') ) {
 777                         if ( $wgUser->isAnon() ) {
 778                                 wfProfileOut( "$fname-checks" );
 779                                 wfProfileOut( $fname );
 780                                 return self::AS_READ_ONLY_PAGE_ANON;
 781                         }
 782                         else {
 783                                 wfProfileOut( "$fname-checks" );
 784                                 wfProfileOut( $fname );
 785                                 return self::AS_READ_ONLY_PAGE_LOGGED;
 786                         }
 787                 }
 788
 789                 if ( wfReadOnly() ) {
 790                         wfProfileOut( "$fname-checks" );
 791                         wfProfileOut( $fname );
 792                         return self::AS_READ_ONLY_PAGE;
 793                 }
 794                 if ( $wgUser->pingLimiter() ) {
 795                         wfProfileOut( "$fname-checks" );
 796                         wfProfileOut( $fname );
 797                         return self::AS_RATE_LIMITED;
 798                 }
 799
 800                 # If the article has been deleted while editing, don't save it without
 801                 # confirmation
 802                 if ( $this->wasDeletedSinceLastEdit() && !$this->recreate ) {
 803                         wfProfileOut( "$fname-checks" );
 804                         wfProfileOut( $fname );
 805                         return self::AS_ARTICLE_WAS_DELETED;
 806                 }
 807
 808                 wfProfileOut( "$fname-checks" );
 809
 810                 # If article is new, insert it.
 811                 $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
 812                 if ( 0 == $aid ) {
 813
 814                         // Late check for create permission, just in case *PARANOIA*
 815                         if ( !$this->mTitle->userCan( 'create' ) ) {
 816                                 wfDebug( "$fname: no create permission\n" );
 817                                 wfProfileOut( $fname );
 818                                 return self::AS_NO_CREATE_PERMISSION;
 819                         }
 820
 821                         # Don't save a new article if it's blank.
 822                         if ( '' == $this->textbox1 ) {
 823                                         wfProfileOut( $fname );
 824                                         return self::AS_BLANK_ARTICLE;
 825                         }
 826
 827                         // Run post-section-merge edit filter
 828                         if ( !wfRunHooks( 'EditFilterMerged', array( $this, $this->textbox1, &$this->hookError ) ) ) {
 829                                 # Error messages etc. could be handled within the hook...
 830                                 wfProfileOut( $fname );
 831                                 return self::AS_HOOK_ERROR;
 832                         }
 833
 834                         $isComment = ( $this->section == 'new' );
 835
 836                         $this->mArticle->insertNewArticle( $this->textbox1, $this->summary,
 837                                 $this->minoredit, $this->watchthis, false, $isComment, $bot);
 838
 839                         wfProfileOut( $fname );
 840                         return self::AS_SUCCESS_NEW_ARTICLE;
 841                 }
 842
 843                 # Article exists. Check for edit conflict.
 844
 845                 $this->mArticle->clear(); # Force reload of dates, etc.
 846                 $this->mArticle->forUpdate( true ); # Lock the article
 847
 848                 wfDebug("timestamp: {$this->mArticle->getTimestamp()}, edittime: {$this->edittime}\n");
 849
 850                 if( $this->mArticle->getTimestamp() != $this->edittime ) {
 851                         $this->isConflict = true;
 852                         if( $this->section == 'new' ) {
 853                                 if( $this->mArticle->getUserText() == $wgUser->getName() &&
 854                                         $this->mArticle->getComment() == $this->summary ) {
 855                                         // Probably a duplicate submission of a new comment.
 856                                         // This can happen when squid resends a request after
 857                                         // a timeout but the first one actually went through.
 858                                         wfDebug( "EditPage::editForm duplicate new section submission; trigger edit conflict!\n" );
 859                                 } else {
 860                                         // New comment; suppress conflict.
 861                                         $this->isConflict = false;
 862                                         wfDebug( "EditPage::editForm conflict suppressed; new section\n" );
 863                                 }
 864                         }
 865                 }
 866                 $userid = $wgUser->getID();
 867
 868                 if ( $this->isConflict) {
 869                         wfDebug( "EditPage::editForm conflict! getting section '$this->section' for time '$this->edittime' (article time '" .
 870                                 $this->mArticle->getTimestamp() . "')\n" );
 871                         $text = $this->mArticle->replaceSection( $this->section, $this->textbox1, $this->summary, $this->edittime);
 872                 }
 873                 else {
 874                         wfDebug( "EditPage::editForm getting section '$this->section'\n" );
 875                         $text = $this->mArticle->replaceSection( $this->section, $this->textbox1, $this->summary);
 876                 }
 877                 if( is_null( $text ) ) {
 878                         wfDebug( "EditPage::editForm activating conflict; section replace failed.\n" );
 879                         $this->isConflict = true;
 880                         $text = $this->textbox1;
 881                 }
 882
 883                 # Suppress edit conflict with self, except for section edits where merging is required.
 884                 if ( ( $this->section == '' ) && ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
 885                         wfDebug( "EditPage::editForm Suppressing edit conflict, same user.\n" );
 886                         $this->isConflict = false;
 887                 } else {
 888                         # switch from section editing to normal editing in edit conflict
 889                         if($this->isConflict) {
 890                                 # Attempt merge
 891                                 if( $this->mergeChangesInto( $text ) ){
 892                                         // Successful merge! Maybe we should tell the user the good news?
 893                                         $this->isConflict = false;
 894                                         wfDebug( "EditPage::editForm Suppressing edit conflict, successful merge.\n" );
 895                                 } else {
 896                                         $this->section = '';
 897                                         $this->textbox1 = $text;
 898                                         wfDebug( "EditPage::editForm Keeping edit conflict, failed merge.\n" );
 899                                 }
 900                         }
 901                 }
 902
 903                 if ( $this->isConflict ) {
 904                         wfProfileOut( $fname );
 905                         return self::AS_CONFLICT_DETECTED;
 906                 }
 907
 908                 $oldtext = $this->mArticle->getContent();
 909
 910                 // Run post-section-merge edit filter
 911                 if ( !wfRunHooks( 'EditFilterMerged', array( $this, $text, &$this->hookError ) ) ) {
 912                         # Error messages etc. could be handled within the hook...
 913                         wfProfileOut( $fname );
 914                         return self::AS_HOOK_ERROR;
 915                 }
 916
 917                 # Handle the user preference to force summaries here, but not for null edits
 918                 if( $this->section != 'new' && !$this->allowBlankSummary && $wgUser->getOption( 'forceeditsummary')
 919                         &&  0 != strcmp($oldtext, $text) && !Article::getRedirectAutosummary( $text )) {
 920                         if( md5( $this->summary ) == $this->autoSumm ) {
 921                                 $this->missingSummary = true;
 922                                 wfProfileOut( $fname );
 923                                 return self::AS_SUMMARY_NEEDED;
 924                         }
 925                 }
 926
 927                 # And a similar thing for new sections
 928                 if( $this->section == 'new' && !$this->allowBlankSummary && $wgUser->getOption( 'forceeditsummary' ) ) {
 929                         if (trim($this->summary) == '') {
 930                                 $this->missingSummary = true;
 931                                 wfProfileOut( $fname );
 932                                 return self::AS_SUMMARY_NEEDED;
 933                         }
 934                 }
 935
 936                 # All's well
 937                 wfProfileIn( "$fname-sectionanchor" );
 938                 $sectionanchor = '';
 939                 if( $this->section == 'new' ) {
 940                         if ( $this->textbox1 == '' ) {
 941                                 $this->missingComment = true;
 942                                 return self::AS_TEXTBOX_EMPTY;
 943                         }
 944                         if( $this->summary != '' ) {
 945                                 $sectionanchor = $wgParser->guessSectionNameFromWikiText( $this->summary );
 946                                 # This is a new section, so create a link to the new section
 947                                 # in the revision summary.
 948                                 $cleanSummary = $wgParser->stripSectionName( $this->summary );
 949                                 $this->summary = wfMsgForContent( 'newsectionsummary', $cleanSummary );
 950                         }
 951                 } elseif( $this->section != '' ) {
 952                         # Try to get a section anchor from the section source, redirect to edited section if header found
 953                         # XXX: might be better to integrate this into Article::replaceSection
 954                         # for duplicate heading checking and maybe parsing
 955                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
 956                         # we can't deal with anchors, includes, html etc in the header for now,
 957                         # headline would need to be parsed to improve this
 958                         if($hasmatch and strlen($matches[2]) > 0) {
 959                                 $sectionanchor = $wgParser->guessSectionNameFromWikiText( $matches[2] );
 960                         }
 961                 }
 962                 wfProfileOut( "$fname-sectionanchor" );
 963
 964                 // Save errors may fall down to the edit form, but we've now
 965                 // merged the section into full text. Clear the section field
 966                 // so that later submission of conflict forms won't try to
 967                 // replace that into a duplicated mess.
 968                 $this->textbox1 = $text;
 969                 $this->section = '';
 970
 971                 // Check for length errors again now that the section is merged in
 972                 $this->kblength = (int)(strlen( $text ) / 1024);
 973                 if ( $this->kblength > $wgMaxArticleSize ) {
 974                         $this->tooBig = true;
 975                         wfProfileOut( $fname );
 976                         return self::AS_MAX_ARTICLE_SIZE_EXCEEDED;
 977                 }
 978
 979                 # update the article here
 980                 if( $this->mArticle->updateArticle( $text, $this->summary, $this->minoredit,
 981                         $this->watchthis, $bot, $sectionanchor ) ) {
 982                         wfProfileOut( $fname );
 983                         return self::AS_SUCCESS_UPDATE;
 984                 } else {
 985                         $this->isConflict = true;
 986                 }
 987                 wfProfileOut( $fname );
 988                 return self::AS_END;
 989         }
 990
 991         /**
 992          * Initialise form fields in the object
 993          * Called on the first invocation, e.g. when a user clicks an edit link
 994          */
 995         function initialiseForm() {
 996                 $this->edittime = $this->mArticle->getTimestamp();
 997                 $this->textbox1 = $this->getContent(false);
 998                 if ($this->textbox1 === false) return false;
 999
1000                 if ( !$this->mArticle->exists() && $this->mTitle->getNamespace() == NS_MEDIAWIKI )
1001                         $this->textbox1 = wfMsgWeirdKey( $this->mTitle->getText() );
1002                 wfProxyCheck();
1003                 return true;
1004         }
1005
1006         /**
1007          * Send the edit form and related headers to $wgOut
1008          * @param $formCallback Optional callable that takes an OutputPage
1009          *                      parameter; will be called during form output
1010          *                      near the top, for captchas and the like.
1011          */
1012         function showEditForm( $formCallback=null ) {
1013                 global $wgOut, $wgUser, $wgLang, $wgContLang, $wgMaxArticleSize, $wgTitle;
1014
1015                 # If $wgTitle is null, that means we're in API mode.
1016                 # Some hook probably called this function  without checking
1017                 # for is_null($wgTitle) first. Bail out right here so we don't
1018                 # do lots of work just to discard it right after.
1019                 if(is_null($wgTitle))
1020                         return;
1021
1022                 $fname = 'EditPage::showEditForm';
1023                 wfProfileIn( $fname );
1024
1025                 $sk = $wgUser->getSkin();
1026
1027                 wfRunHooks( 'EditPage::showEditForm:initial', array( &$this ) ) ;
1028
1029                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1030
1031                 # Enabled article-related sidebar, toplinks, etc.
1032                 $wgOut->setArticleRelated( true );
1033
1034                 if ( $this->formtype == 'preview' ) {
1035                         $wgOut->setPageTitleActionText( wfMsg( 'preview' ) );
1036                 }
1037
1038                 if ( $this->isConflict ) {
1039                         $s = wfMsg( 'editconflict', $wgTitle->getPrefixedText() );
1040                         $wgOut->setPageTitle( $s );
1041                         $wgOut->addWikiMsg( 'explainconflict' );
1042
1043                         $this->textbox2 = $this->textbox1;
1044                         $this->textbox1 = $this->getContent();
1045                         $this->edittime = $this->mArticle->getTimestamp();
1046                 } else {
1047                         if( $this->section != '' ) {
1048                                 if( $this->section == 'new' ) {
1049                                         $s = wfMsg('editingcomment', $wgTitle->getPrefixedText() );
1050                                 } else {
1051                                         $s = wfMsg('editingsection', $wgTitle->getPrefixedText() );
1052                                         $matches = array();
1053                                         if( !$this->summary && !$this->preview && !$this->diff ) {
1054                                                 preg_match( "/^(=+)(.+)\\1/mi",
1055                                                         $this->textbox1,
1056                                                         $matches );
1057                                                 if( !empty( $matches[2] ) ) {
1058                                                         global $wgParser;
1059                                                         $this->summary = "/* " .
1060                                                                 $wgParser->stripSectionName(trim($matches[2])) .
1061                                                                 " */ ";
1062                                                 }
1063                                         }
1064                                 }
1065                         } else {
1066                                 $s = wfMsg( 'editing', $wgTitle->getPrefixedText() );
1067                         }
1068                         $wgOut->setPageTitle( $s );
1069
1070                         if ( $this->missingComment ) {
1071                                 $wgOut->wrapWikiMsg( '<div id="mw-missingcommenttext">$1</div>',  'missingcommenttext' );
1072                         }
1073
1074                         if( $this->missingSummary && $this->section != 'new' ) {
1075                                 $wgOut->wrapWikiMsg( '<div id="mw-missingsummary">$1</div>', 'missingsummary' );
1076                         }
1077
1078                         if( $this->missingSummary && $this->section == 'new' ) {
1079                                 $wgOut->wrapWikiMsg( '<div id="mw-missingcommentheader">$1</div>', 'missingcommentheader' );
1080                         }
1081
1082                         if( $this->hookError !== '' ) {
1083                                 $wgOut->addWikiText( $this->hookError );
1084                         }
1085
1086                         if ( !$this->checkUnicodeCompliantBrowser() ) {
1087                                 $wgOut->addWikiMsg( 'nonunicodebrowser' );
1088                         }
1089                         if ( isset( $this->mArticle ) && isset( $this->mArticle->mRevision ) ) {
1090                         // Let sysop know that this will make private content public if saved
1091
1092                                 if( !$this->mArticle->mRevision->userCan( Revision::DELETED_TEXT ) ) {
1093                                         $wgOut->addWikiMsg( 'rev-deleted-text-permission' );
1094                                 } else if( $this->mArticle->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
1095                                         $wgOut->addWikiMsg( 'rev-deleted-text-view' );
1096                                 }
1097
1098                                 if( !$this->mArticle->mRevision->isCurrent() ) {
1099                                         $this->mArticle->setOldSubtitle( $this->mArticle->mRevision->getId() );
1100                                         $wgOut->addWikiMsg( 'editingold' );
1101                                 }
1102                         }
1103                 }
1104
1105                 if( wfReadOnly() ) {
1106                         $wgOut->addHTML( '<div id="mw-read-only-warning">'.wfMsgWikiHTML( 'readonlywarning' ).'</div>' );
1107                 } elseif( $wgUser->isAnon() && $this->formtype != 'preview' ) {
1108                         $wgOut->addHTML( '<div id="mw-anon-edit-warning">'.wfMsgWikiHTML( 'anoneditwarning' ).'</div>' );
1109                 } else {
1110                         if( $this->isCssJsSubpage && $this->formtype != 'preview' ) {
1111                                 # Check the skin exists
1112                                 if( $this->isValidCssJsSubpage ) {
1113                                         $wgOut->addWikiMsg( 'usercssjsyoucanpreview' );
1114                                 } else {
1115                                         $wgOut->addWikiMsg( 'userinvalidcssjstitle', $wgTitle->getSkinFromCssJsSubpage() );
1116                                 }
1117                         }
1118                 }
1119
1120                 if( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
1121                         # Show a warning if editing an interface message
1122                         $wgOut->addWikiMsg( 'editinginterface' );
1123                 } elseif( $this->mTitle->isProtected( 'edit' ) ) {
1124                         # Is the title semi-protected?
1125                         if( $this->mTitle->isSemiProtected() ) {
1126                                 $noticeMsg = 'semiprotectedpagewarning';
1127                         } else {
1128                                 # Then it must be protected based on static groups (regular)
1129                                 $noticeMsg = 'protectedpagewarning';
1130                         }
1131                         $wgOut->addWikiMsg( $noticeMsg );
1132                 }
1133                 if ( $this->mTitle->isCascadeProtected() ) {
1134                         # Is this page under cascading protection from some source pages?
1135                         list($cascadeSources, /* $restrictions */) = $this->mTitle->getCascadeProtectionSources();
1136                         $notice = "$1\n";
1137                         if ( count($cascadeSources) > 0 ) {
1138                                 # Explain, and list the titles responsible
1139                                 foreach( $cascadeSources as $page ) {
1140                                         $notice .= '* [[:' . $page->getPrefixedText() . "]]\n";
1141                                 }
1142                         }
1143                         $wgOut->wrapWikiMsg( $notice, array( 'cascadeprotectedwarning', count($cascadeSources) ) );
1144                 }
1145                 if( !$this->mTitle->exists() && $this->mTitle->getRestrictions( 'create' ) != array() ){
1146                         $wgOut->addWikiMsg( 'titleprotectedwarning' );
1147                 }
1148
1149                 if ( $this->kblength === false ) {
1150                         $this->kblength = (int)(strlen( $this->textbox1 ) / 1024);
1151                 }
1152                 if ( $this->tooBig || $this->kblength > $wgMaxArticleSize ) {
1153                         $wgOut->addWikiMsg( 'longpageerror', $wgLang->formatNum( $this->kblength ), $wgMaxArticleSize );
1154                 } elseif( $this->kblength > 29 ) {
1155                         $wgOut->addWikiMsg( 'longpagewarning', $wgLang->formatNum( $this->kblength ) );
1156                 }
1157
1158                 #need to parse the preview early so that we know which templates are used,
1159                 #otherwise users with "show preview after edit box" will get a blank list
1160                 if ( $this->formtype == 'preview' ) {
1161                         $previewOutput = $this->getPreviewText();
1162                 }
1163
1164                 $rows = $wgUser->getIntOption( 'rows' );
1165                 $cols = $wgUser->getIntOption( 'cols' );
1166
1167                 $ew = $wgUser->getOption( 'editwidth' );
1168                 if ( $ew ) $ew = " style=\"width:100%\"";
1169                 else $ew = '';
1170
1171                 $q = 'action=submit';
1172                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
1173                 $action = $wgTitle->escapeLocalURL( $q );
1174
1175                 $summary = wfMsg('summary');
1176                 $subject = wfMsg('subject');
1177
1178                 $cancel = $sk->makeKnownLink( $wgTitle->getPrefixedText(),
1179                                 wfMsgExt('cancel', array('parseinline')) );
1180                 $edithelpurl = Skin::makeInternalOrExternalUrl( wfMsgForContent( 'edithelppage' ));
1181                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
1182                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
1183                         htmlspecialchars( wfMsg( 'newwindow' ) );
1184
1185                 global $wgRightsText;
1186                 if ( $wgRightsText ) {
1187                         $copywarnMsg = array( 'copyrightwarning',
1188                                 '[[' . wfMsgForContent( 'copyrightpage' ) . ']]',
1189                                 $wgRightsText );
1190                 } else {
1191                         $copywarnMsg = array( 'copyrightwarning2',
1192                                 '[[' . wfMsgForContent( 'copyrightpage' ) . ']]' );
1193                 }
1194
1195                 if( $wgUser->getOption('showtoolbar') and !$this->isCssJsSubpage ) {
1196                         # prepare toolbar for edit buttons
1197                         $toolbar = $this->getEditToolbar();
1198                 } else {
1199                         $toolbar = '';
1200                 }
1201
1202                 // activate checkboxes if user wants them to be always active
1203                 if( !$this->preview && !$this->diff ) {
1204                         # Sort out the "watch" checkbox
1205                         if( $wgUser->getOption( 'watchdefault' ) ) {
1206                                 # Watch all edits
1207                                 $this->watchthis = true;
1208                         } elseif( $wgUser->getOption( 'watchcreations' ) && !$this->mTitle->exists() ) {
1209                                 # Watch creations
1210                                 $this->watchthis = true;
1211                         } elseif( $this->mTitle->userIsWatching() ) {
1212                                 # Already watched
1213                                 $this->watchthis = true;
1214                         }
1215
1216                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
1217                 }
1218
1219                 $wgOut->addHTML( $this->editFormPageTop );
1220
1221                 if ( $wgUser->getOption( 'previewontop' ) ) {
1222
1223                         if ( 'preview' == $this->formtype ) {
1224                                 $this->showPreview( $previewOutput );
1225                         } else {
1226                                 $wgOut->addHTML( '<div id="wikiPreview"></div>' );
1227                         }
1228
1229                         if ( 'diff' == $this->formtype ) {
1230                                 $this->showDiff();
1231                         }
1232                 }
1233
1234
1235                 $wgOut->addHTML( $this->editFormTextTop );
1236
1237                 # if this is a comment, show a subject line at the top, which is also the edit summary.
1238                 # Otherwise, show a summary field at the bottom
1239                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
1240
1241                 # If a blank edit summary was previously provided, and the appropriate
1242                 # user preference is active, pass a hidden tag as wpIgnoreBlankSummary. This will stop the
1243                 # user being bounced back more than once in the event that a summary
1244                 # is not required.
1245                 #####
1246                 # For a bit more sophisticated detection of blank summaries, hash the
1247                 # automatic one and pass that in the hidden field wpAutoSummary.
1248                 $summaryhiddens =  '';
1249                 if( $this->missingSummary ) $summaryhiddens .= Xml::hidden( 'wpIgnoreBlankSummary', true );
1250                 $autosumm = $this->autoSumm ? $this->autoSumm : md5( $this->summary );
1251                 $summaryhiddens .= Xml::hidden( 'wpAutoSummary', $autosumm );
1252                 if( $this->section == 'new' ) {
1253                         $commentsubject="<span id='wpSummaryLabel'><label for='wpSummary'>{$subject}:</label></span>\n<div class='editOptions'>\n<input tabindex='1' type='text' value=\"$summarytext\" name='wpSummary' id='wpSummary' maxlength='200' size='60' />{$summaryhiddens}<br />";
1254                         $editsummary = '';
1255                         global $wgParser;
1256                         $formattedSummary = wfMsgForContent( 'newsectionsummary', $wgParser->stripSectionName( $this->summary ) );
1257                         $subjectpreview = $summarytext && $this->preview ? "<div class=\"mw-summary-preview\">".wfMsg('subject-preview').':'.$sk->commentBlock( $formattedSummary, $this->mTitle, true )."</div>\n" : '';
1258                         $summarypreview = '';
1259                 } else {
1260                         $commentsubject = '';
1261                         $editsummary="<span id='wpSummaryLabel'><label for='wpSummary'>{$summary}:</label></span>\n<div class='editOptions'>\n<input tabindex='2' type='text' value=\"$summarytext\" name='wpSummary' id='wpSummary' maxlength='200' size='60' />{$summaryhiddens}<br />";
1262                         $summarypreview = $summarytext && $this->preview ? "<div class=\"mw-summary-preview\">".wfMsg('summary-preview').':'.$sk->commentBlock( $this->summary, $this->mTitle )."</div>\n" : '';
1263                         $subjectpreview = '';
1264                 }
1265
1266                 # Set focus to the edit box on load, except on preview or diff, where it would interfere with the display
1267                 if( !$this->preview && !$this->diff ) {
1268                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
1269                 }
1270                 $templates = ($this->preview || $this->section != '') ? $this->mPreviewTemplates : $this->mArticle->getUsedTemplates();
1271                 $formattedtemplates = $sk->formatTemplates( $templates, $this->preview, $this->section != '');
1272
1273                 $hiddencats = $this->mArticle->getHiddenCategories();
1274                 $formattedhiddencats = $sk->formatHiddenCategories( $hiddencats );
1275
1276                 global $wgUseMetadataEdit ;
1277                 if ( $wgUseMetadataEdit ) {
1278                         $metadata = $this->mMetaData ;
1279                         $metadata = htmlspecialchars( $wgContLang->recodeForEdit( $metadata ) ) ;
1280                         $top = wfMsgWikiHtml( 'metadata_help' );
1281                         $metadata = $top . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
1282                 }
1283                 else $metadata = "" ;
1284
1285                 $hidden = '';
1286                 $recreate = '';
1287                 if ($this->wasDeletedSinceLastEdit()) {
1288                         if ( 'save' != $this->formtype ) {
1289                                 $wgOut->addWikiMsg('deletedwhileediting');
1290                         } else {
1291                                 // Hide the toolbar and edit area, use can click preview to get it back
1292                                 // Add an confirmation checkbox and explanation.
1293                                 $toolbar = '';
1294                                 $hidden = 'type="hidden" style="display:none;"';
1295                                 $recreate = $wgOut->parse( wfMsg( 'confirmrecreate',  $this->lastDelete->user_name , $this->lastDelete->log_comment ));
1296                                 $recreate .=
1297                                         "<br /><input tabindex='1' type='checkbox' value='1' name='wpRecreate' id='wpRecreate' />".
1298                                         "<label for='wpRecreate' title='".wfMsg('tooltip-recreate')."'>". wfMsg('recreate')."</label>";
1299                         }
1300                 }
1301
1302                 $tabindex = 2;
1303
1304                 $checkboxes = self::getCheckboxes( $tabindex, $sk,
1305                         array( 'minor' => $this->minoredit, 'watch' => $this->watchthis ) );
1306
1307                 $checkboxhtml = implode( $checkboxes, "\n" );
1308
1309                 $buttons = $this->getEditButtons( $tabindex );
1310                 $buttonshtml = implode( $buttons, "\n" );
1311
1312                 $safemodehtml = $this->checkUnicodeCompliantBrowser()
1313                         ? '' : Xml::hidden( 'safemode', '1' );
1314
1315                 $wgOut->addHTML( <<<END
1316 {$toolbar}
1317 <form id="editform" name="editform" method="post" action="$action" enctype="multipart/form-data">
1318 END
1319 );
1320
1321                 if( is_callable( $formCallback ) ) {
1322                         call_user_func_array( $formCallback, array( &$wgOut ) );
1323                 }
1324
1325                 wfRunHooks( 'EditPage::showEditForm:fields', array( &$this, &$wgOut ) );
1326
1327                 // Put these up at the top to ensure they aren't lost on early form submission
1328                 $wgOut->addHTML( "
1329 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
1330 <input type='hidden' value=\"{$this->starttime}\" name=\"wpStarttime\" />\n
1331 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n
1332 <input type='hidden' value=\"{$this->scrolltop}\" name=\"wpScrolltop\" id=\"wpScrolltop\" />\n" );
1333
1334                 $wgOut->addHTML( <<<END
1335 $recreate
1336 {$commentsubject}
1337 {$subjectpreview}
1338 {$this->editFormTextBeforeContent}
1339 <textarea tabindex='1' accesskey="," name="wpTextbox1" id="wpTextbox1" rows='{$rows}'
1340 cols='{$cols}'{$ew} $hidden>
1341 END
1342 . htmlspecialchars( $this->safeUnicodeOutput( $this->textbox1 ) ) .
1343 "
1344 </textarea>
1345                 " );
1346
1347                 $wgOut->wrapWikiMsg( "<div id=\"editpage-copywarn\">\n$1\n</div>", $copywarnMsg );
1348                 $wgOut->addHTML( $this->editFormTextAfterWarn );
1349                 $wgOut->addHTML( "
1350 {$metadata}
1351 {$editsummary}
1352 {$summarypreview}
1353 {$checkboxhtml}
1354 {$safemodehtml}
1355 ");
1356
1357                 $wgOut->addHTML(
1358 "<div class='editButtons'>
1359 {$buttonshtml}
1360         <span class='editHelp'>{$cancel} | {$edithelp}</span>
1361 </div><!-- editButtons -->
1362 </div><!-- editOptions -->");
1363
1364                 /**
1365                  * To make it harder for someone to slip a user a page
1366                  * which submits an edit form to the wiki without their
1367                  * knowledge, a random token is associated with the login
1368                  * session. If it's not passed back with the submission,
1369                  * we won't save the page, or render user JavaScript and
1370                  * CSS previews.
1371                  *
1372                  * For anon editors, who may not have a session, we just
1373                  * include the constant suffix to prevent editing from
1374                  * broken text-mangling proxies.
1375                  */
1376                 $token = htmlspecialchars( $wgUser->editToken() );
1377                 $wgOut->addHTML( "\n<input type='hidden' value=\"$token\" name=\"wpEditToken\" />\n" );
1378
1379                 $wgOut->addHtml( '<div class="mw-editTools">' );
1380                 $wgOut->addWikiMsgArray( 'edittools', array(), array( 'content' ) );
1381                 $wgOut->addHtml( '</div>' );
1382
1383                 $wgOut->addHTML( $this->editFormTextAfterTools );
1384
1385                 $wgOut->addHTML( "
1386 <div class='templatesUsed'>
1387 {$formattedtemplates}
1388 </div>
1389 <div class='hiddencats'>
1390 {$formattedhiddencats}
1391 </div>
1392 ");
1393
1394                 if ( $this->isConflict ) {
1395                         $wgOut->wrapWikiMsg( '==$1==', "yourdiff" );
1396
1397                         $de = new DifferenceEngine( $this->mTitle );
1398                         $de->setText( $this->textbox2, $this->textbox1 );
1399                         $de->showDiff( wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
1400
1401                         $wgOut->wrapWikiMsg( '==$1==', "yourtext" );
1402                         $wgOut->addHTML( "<textarea tabindex='6' id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}'>"
1403                                 . htmlspecialchars( $this->safeUnicodeOutput( $this->textbox2 ) ) . "\n</textarea>" );
1404                 }
1405                 $wgOut->addHTML( $this->editFormTextBottom );
1406                 $wgOut->addHTML( "</form>\n" );
1407                 if ( !$wgUser->getOption( 'previewontop' ) ) {
1408
1409                         if ( $this->formtype == 'preview') {
1410                                 $this->showPreview( $previewOutput );
1411                         } else {
1412                                 $wgOut->addHTML( '<div id="wikiPreview"></div>' );
1413                         }
1414
1415                         if ( $this->formtype == 'diff') {
1416                                 $this->showDiff();
1417                         }
1418
1419                 }
1420
1421                 wfProfileOut( $fname );
1422         }
1423
1424         /**
1425          * Append preview output to $wgOut.
1426          * Includes category rendering if this is a category page.
1427          *
1428          * @param string $text The HTML to be output for the preview.
1429          */
1430         private function showPreview( $text ) {
1431                 global $wgOut;
1432
1433                 $wgOut->addHTML( '<div id="wikiPreview">' );
1434                 if($this->mTitle->getNamespace() == NS_CATEGORY) {
1435                         $this->mArticle->openShowCategory();
1436                 }
1437                 wfRunHooks( 'OutputPageBeforeHTML',array( &$wgOut, &$text ) );
1438                 $wgOut->addHTML( $text );
1439                 if($this->mTitle->getNamespace() == NS_CATEGORY) {
1440                         $this->mArticle->closeShowCategory();
1441                 }
1442                 $wgOut->addHTML( '</div>' );
1443         }
1444
1445         /**
1446          * Live Preview lets us fetch rendered preview page content and
1447          * add it to the page without refreshing the whole page.
1448          * If not supported by the browser it will fall through to the normal form
1449          * submission method.
1450          *
1451          * This function outputs a script tag to support live preview, and
1452          * returns an onclick handler which should be added to the attributes
1453          * of the preview button
1454          */
1455         function doLivePreviewScript() {
1456                 global $wgStylePath, $wgJsMimeType, $wgStyleVersion, $wgOut, $wgTitle;
1457                 $wgOut->addHTML( '<script type="'.$wgJsMimeType.'" src="' .
1458                         htmlspecialchars( "$wgStylePath/common/preview.js?$wgStyleVersion" ) .
1459                         '"></script>' . "\n" );
1460                 $liveAction = $wgTitle->getLocalUrl( 'action=submit&wpPreview=true&live=true' );
1461                 return "return !lpDoPreview(" .
1462                         "editform.wpTextbox1.value," .
1463                         '"' . $liveAction . '"' . ")";
1464         }
1465
1466         function getLastDelete() {
1467                 $dbr = wfGetDB( DB_SLAVE );
1468                 $fname = 'EditPage::getLastDelete';
1469                 $res = $dbr->select(
1470                         array( 'logging', 'user' ),
1471                         array( 'log_type',
1472                                'log_action',
1473                                'log_timestamp',
1474                                'log_user',
1475                                'log_namespace',
1476                                'log_title',
1477                                'log_comment',
1478                                'log_params',
1479                                'user_name', ),
1480                         array( 'log_namespace' => $this->mTitle->getNamespace(),
1481                                'log_title' => $this->mTitle->getDBkey(),
1482                                'log_type' => 'delete',
1483                                'log_action' => 'delete',
1484                                'user_id=log_user' ),
1485                         $fname,
1486                         array( 'LIMIT' => 1, 'ORDER BY' => 'log_timestamp DESC' ) );
1487
1488                 if($dbr->numRows($res) == 1) {
1489                         while ( $x = $dbr->fetchObject ( $res ) )
1490                                 $data = $x;
1491                         $dbr->freeResult ( $res ) ;
1492                 } else {
1493                         $data = null;
1494                 }
1495                 return $data;
1496         }
1497
1498         /**
1499          * @todo document
1500          */
1501         function getPreviewText() {
1502                 global $wgOut, $wgUser, $wgTitle, $wgParser, $wgLang, $wgContLang;
1503
1504                 $fname = 'EditPage::getPreviewText';
1505                 wfProfileIn( $fname );
1506
1507                 if ( $this->mTriedSave && !$this->mTokenOk ) {
1508                         if ( $this->mTokenOkExceptSuffix ) {
1509                                 $note = wfMsg( 'token_suffix_mismatch' );
1510                         } else {
1511                                 $note = wfMsg( 'session_fail_preview' );
1512                         }
1513                 } else {
1514                         $note = wfMsg( 'previewnote' );
1515                 }
1516
1517                 $parserOptions = ParserOptions::newFromUser( $wgUser );
1518                 $parserOptions->setEditSection( false );
1519
1520                 global $wgRawHtml;
1521                 if( $wgRawHtml && !$this->mTokenOk ) {
1522                         // Could be an offsite preview attempt. This is very unsafe if
1523                         // HTML is enabled, as it could be an attack.
1524                         return $wgOut->parse( "<div class='previewnote'>" .
1525                                 wfMsg( 'session_fail_preview_html' ) . "</div>" );
1526                 }
1527
1528                 # don't parse user css/js, show message about preview
1529                 # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
1530
1531                 if ( $this->isCssJsSubpage ) {
1532                         if(preg_match("/\\.css$/", $this->mTitle->getText() ) ) {
1533                                 $previewtext = wfMsg('usercsspreview');
1534                         } else if(preg_match("/\\.js$/", $this->mTitle->getText() ) ) {
1535                                 $previewtext = wfMsg('userjspreview');
1536                         }
1537                         $parserOptions->setTidy(true);
1538                         $parserOutput = $wgParser->parse( $previewtext , $this->mTitle, $parserOptions );
1539                         $wgOut->addHTML( $parserOutput->mText );
1540                         $previewHTML = '';
1541                 } else {
1542                         $toparse = $this->textbox1;
1543
1544                         # If we're adding a comment, we need to show the
1545                         # summary as the headline
1546                         if($this->section=="new" && $this->summary!="") {
1547                                 $toparse="== {$this->summary} ==\n\n".$toparse;
1548                         }
1549
1550                         if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData;
1551
1552                         // Parse mediawiki messages with correct target language
1553                         if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
1554                                 $pos = strrpos( $this->mTitle->getText(), '/' );
1555                                 if ( $pos !== false ) {
1556                                         $code = substr( $this->mTitle->getText(), $pos+1 );
1557                                         switch ($code) {
1558                                                 case $wgLang->getCode():
1559                                                         $obj = $wgLang; break;
1560                                                 case $wgContLang->getCode():
1561                                                         $obj = $wgContLang; break;
1562                                                 default:
1563                                                         $obj = Language::factory( $code );
1564                                         }
1565                                         $parserOptions->setTargetLanguage( $obj );
1566                                 }
1567                         }
1568
1569
1570                         $parserOptions->setTidy(true);
1571                         $parserOptions->enableLimitReport();
1572                         $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ),
1573                                         $this->mTitle, $parserOptions );
1574
1575                         $previewHTML = $parserOutput->getText();
1576                         $wgOut->addParserOutputNoText( $parserOutput );
1577
1578                         # ParserOutput might have altered the page title, so reset it
1579                         # Also, use the title defined by DISPLAYTITLE magic word when present
1580                         if( ( $dt = $parserOutput->getDisplayTitle() ) !== false ) {
1581                                 $wgOut->setPageTitle( wfMsg( 'editing', $dt ) );
1582                         } else {
1583                                 $wgOut->setPageTitle( wfMsg( 'editing', $wgTitle->getPrefixedText() ) );
1584                         }
1585
1586                         foreach ( $parserOutput->getTemplates() as $ns => $template)
1587                                 foreach ( array_keys( $template ) as $dbk)
1588                                         $this->mPreviewTemplates[] = Title::makeTitle($ns, $dbk);
1589
1590                         if ( count( $parserOutput->getWarnings() ) ) {
1591                                 $note .= "\n\n" . implode( "\n\n", $parserOutput->getWarnings() );
1592                         }
1593                 }
1594
1595                 $previewhead = '<h2>' . htmlspecialchars( wfMsg( 'preview' ) ) . "</h2>\n" .
1596                         "<div class='previewnote'>" . $wgOut->parse( $note ) . "</div>\n";
1597                 if ( $this->isConflict ) {
1598                         $previewhead.='<h2>' . htmlspecialchars( wfMsg( 'previewconflict' ) ) . "</h2>\n";
1599                 }
1600
1601                 if( $wgUser->getOption( 'previewontop' ) ) {
1602                         // Spacer for the edit toolbar
1603                         $previewfoot = '<p><br /></p>';
1604                 } else {
1605                         $previewfoot = '';
1606                 }
1607
1608                 wfProfileOut( $fname );
1609                 return $previewhead . $previewHTML . $previewfoot;
1610         }
1611
1612         /**
1613          * Call the stock "user is blocked" page
1614          */
1615         function blockedPage() {
1616                 global $wgOut, $wgUser;
1617                 $wgOut->blockedPage( false ); # Standard block notice on the top, don't 'return'
1618
1619                 # If the user made changes, preserve them when showing the markup
1620                 # (This happens when a user is blocked during edit, for instance)
1621                 $first = $this->firsttime || ( !$this->save && $this->textbox1 == '' );
1622                 if( $first ) {
1623                         $source = $this->mTitle->exists() ? $this->getContent() : false;
1624                 } else {
1625                         $source = $this->textbox1;
1626                 }
1627
1628                 # Spit out the source or the user's modified version
1629                 if( $source !== false ) {
1630                         $rows = $wgUser->getOption( 'rows' );
1631                         $cols = $wgUser->getOption( 'cols' );
1632                         $attribs = array( 'id' => 'wpTextbox1', 'name' => 'wpTextbox1', 'cols' => $cols, 'rows' => $rows, 'readonly' => 'readonly' );
1633                         $wgOut->addHtml( '<hr />' );
1634                         $wgOut->addWikiMsg( $first ? 'blockedoriginalsource' : 'blockededitsource', $this->mTitle->getPrefixedText() );
1635                         $wgOut->addHtml( wfOpenElement( 'textarea', $attribs ) . htmlspecialchars( $source ) . wfCloseElement( 'textarea' ) );
1636                 }
1637         }
1638
1639         /**
1640          * Produce the stock "please login to edit pages" page
1641          */
1642         function userNotLoggedInPage() {
1643                 global $wgUser, $wgOut, $wgTitle;
1644                 $skin = $wgUser->getSkin();
1645
1646                 $loginTitle = SpecialPage::getTitleFor( 'Userlogin' );
1647                 $loginLink = $skin->makeKnownLinkObj( $loginTitle, wfMsgHtml( 'loginreqlink' ), 'returnto=' . $wgTitle->getPrefixedUrl() );
1648
1649                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
1650                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1651                 $wgOut->setArticleRelated( false );
1652
1653                 $wgOut->addHtml( wfMsgWikiHtml( 'whitelistedittext', $loginLink ) );
1654                 $wgOut->returnToMain( false, $wgTitle );
1655         }
1656
1657         /**
1658          * Creates a basic error page which informs the user that
1659          * they have attempted to edit a nonexistant section.
1660          */
1661         function noSuchSectionPage() {
1662                 global $wgOut, $wgTitle;
1663
1664                 $wgOut->setPageTitle( wfMsg( 'nosuchsectiontitle' ) );
1665                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1666                 $wgOut->setArticleRelated( false );
1667
1668                 $wgOut->addWikiMsg( 'nosuchsectiontext', $this->section );
1669                 $wgOut->returnToMain( false, $wgTitle );
1670         }
1671
1672         /**
1673          * Produce the stock "your edit contains spam" page
1674          *
1675          * @param $match Text which triggered one or more filters
1676          */
1677         function spamPage( $match = false ) {
1678                 global $wgOut, $wgTitle;
1679
1680                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
1681                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1682                 $wgOut->setArticleRelated( false );
1683
1684                 $wgOut->addHtml( '<div id="spamprotected">' );
1685                 $wgOut->addWikiMsg( 'spamprotectiontext' );
1686                 if ( $match )
1687                         $wgOut->addWikiMsg( 'spamprotectionmatch',wfEscapeWikiText( $match ) );
1688                 $wgOut->addHtml( '</div>' );
1689
1690                 $wgOut->returnToMain( false, $wgTitle );
1691         }
1692
1693         /**
1694          * @private
1695          * @todo document
1696          */
1697         function mergeChangesInto( &$editText ){
1698                 $fname = 'EditPage::mergeChangesInto';
1699                 wfProfileIn( $fname );
1700
1701                 $db = wfGetDB( DB_MASTER );
1702
1703                 // This is the revision the editor started from
1704                 $baseRevision = Revision::loadFromTimestamp(
1705                         $db, $this->mTitle, $this->edittime );
1706                 if( is_null( $baseRevision ) ) {
1707                         wfProfileOut( $fname );
1708                         return false;
1709                 }
1710                 $baseText = $baseRevision->getText();
1711
1712                 // The current state, we want to merge updates into it
1713                 $currentRevision =  Revision::loadFromTitle(
1714                         $db, $this->mTitle );
1715                 if( is_null( $currentRevision ) ) {
1716                         wfProfileOut( $fname );
1717                         return false;
1718                 }
1719                 $currentText = $currentRevision->getText();
1720
1721                 $result = '';
1722                 if( wfMerge( $baseText, $editText, $currentText, $result ) ){
1723                         $editText = $result;
1724                         wfProfileOut( $fname );
1725                         return true;
1726                 } else {
1727                         wfProfileOut( $fname );
1728                         return false;
1729                 }
1730         }
1731
1732         /**
1733          * Check if the browser is on a blacklist of user-agents known to
1734          * mangle UTF-8 data on form submission. Returns true if Unicode
1735          * should make it through, false if it's known to be a problem.
1736          * @return bool
1737          * @private
1738          */
1739         function checkUnicodeCompliantBrowser() {
1740                 global $wgBrowserBlackList;
1741                 if( empty( $_SERVER["HTTP_USER_AGENT"] ) ) {
1742                         // No User-Agent header sent? Trust it by default...
1743                         return true;
1744                 }
1745                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
1746                 foreach ( $wgBrowserBlackList as $browser ) {
1747                         if ( preg_match($browser, $currentbrowser) ) {
1748                                 return false;
1749                         }
1750                 }
1751                 return true;
1752         }
1753
1754         /**
1755          * @deprecated use $wgParser->stripSectionName()
1756          */
1757         function pseudoParseSectionAnchor( $text ) {
1758                 global $wgParser;
1759                 return $wgParser->stripSectionName( $text );
1760         }
1761
1762         /**
1763          * Format an anchor fragment as it would appear for a given section name
1764          * @param string $text
1765          * @return string
1766          * @private
1767          */
1768         function sectionAnchor( $text ) {
1769                 global $wgParser;
1770                 return $wgParser->guessSectionNameFromWikiText( $text );
1771         }
1772
1773         /**
1774          * Shows a bulletin board style toolbar for common editing functions.
1775          * It can be disabled in the user preferences.
1776          * The necessary JavaScript code can be found in style/wikibits.js.
1777          */
1778         function getEditToolbar() {
1779                 global $wgStylePath, $wgContLang, $wgJsMimeType;
1780
1781                 /**
1782                  * toolarray an array of arrays which each include the filename of
1783                  * the button image (without path), the opening tag, the closing tag,
1784                  * and optionally a sample text that is inserted between the two when no
1785                  * selection is highlighted.
1786                  * The tip text is shown when the user moves the mouse over the button.
1787                  *
1788                  * Already here are accesskeys (key), which are not used yet until someone
1789                  * can figure out a way to make them work in IE. However, we should make
1790                  * sure these keys are not defined on the edit page.
1791                  */
1792                 $toolarray = array(
1793                         array(  'image' => 'button_bold.png',
1794                                 'id'    => 'mw-editbutton-bold',
1795                                 'open'  => '\'\'\'',
1796                                 'close' => '\'\'\'',
1797                                 'sample'=> wfMsg('bold_sample'),
1798                                 'tip'   => wfMsg('bold_tip'),
1799                                 'key'   => 'B'
1800                         ),
1801                         array(  'image' => 'button_italic.png',
1802                                 'id'    => 'mw-editbutton-italic',
1803                                 'open'  => '\'\'',
1804                                 'close' => '\'\'',
1805                                 'sample'=> wfMsg('italic_sample'),
1806                                 'tip'   => wfMsg('italic_tip'),
1807                                 'key'   => 'I'
1808                         ),
1809                         array(  'image' => 'button_link.png',
1810                                 'id'    => 'mw-editbutton-link',
1811                                 'open'  => '[[',
1812                                 'close' => ']]',
1813                                 'sample'=> wfMsg('link_sample'),
1814                                 'tip'   => wfMsg('link_tip'),
1815                                 'key'   => 'L'
1816                         ),
1817                         array(  'image' => 'button_extlink.png',
1818                                 'id'    => 'mw-editbutton-extlink',
1819                                 'open'  => '[',
1820                                 'close' => ']',
1821                                 'sample'=> wfMsg('extlink_sample'),
1822                                 'tip'   => wfMsg('extlink_tip'),
1823                                 'key'   => 'X'
1824                         ),
1825                         array(  'image' => 'button_headline.png',
1826                                 'id'    => 'mw-editbutton-headline',
1827                                 'open'  => "\n== ",
1828                                 'close' => " ==\n",
1829                                 'sample'=> wfMsg('headline_sample'),
1830                                 'tip'   => wfMsg('headline_tip'),
1831                                 'key'   => 'H'
1832                         ),
1833                         array(  'image' => 'button_image.png',
1834                                 'id'    => 'mw-editbutton-image',
1835                                 'open'  => '[['.$wgContLang->getNsText(NS_IMAGE).":",
1836                                 'close' => ']]',
1837                                 'sample'=> wfMsg('image_sample'),
1838                                 'tip'   => wfMsg('image_tip'),
1839                                 'key'   => 'D'
1840                         ),
1841                         array(  'image' => 'button_media.png',
1842                                 'id'    => 'mw-editbutton-media',
1843                                 'open'  => '[['.$wgContLang->getNsText(NS_MEDIA).':',
1844                                 'close' => ']]',
1845                                 'sample'=> wfMsg('media_sample'),
1846                                 'tip'   => wfMsg('media_tip'),
1847                                 'key'   => 'M'
1848                         ),
1849                         array(  'image' => 'button_math.png',
1850                                 'id'    => 'mw-editbutton-math',
1851                                 'open'  => "<math>",
1852                                 'close' => "</math>",
1853                                 'sample'=> wfMsg('math_sample'),
1854                                 'tip'   => wfMsg('math_tip'),
1855                                 'key'   => 'C'
1856                         ),
1857                         array(  'image' => 'button_nowiki.png',
1858                                 'id'    => 'mw-editbutton-nowiki',
1859                                 'open'  => "<nowiki>",
1860                                 'close' => "</nowiki>",
1861                                 'sample'=> wfMsg('nowiki_sample'),
1862                                 'tip'   => wfMsg('nowiki_tip'),
1863                                 'key'   => 'N'
1864                         ),
1865                         array(  'image' => 'button_sig.png',
1866                                 'id'    => 'mw-editbutton-signature',
1867                                 'open'  => '--~~~~',
1868                                 'close' => '',
1869                                 'sample'=> '',
1870                                 'tip'   => wfMsg('sig_tip'),
1871                                 'key'   => 'Y'
1872                         ),
1873                         array(  'image' => 'button_hr.png',
1874                                 'id'    => 'mw-editbutton-hr',
1875                                 'open'  => "\n----\n",
1876                                 'close' => '',
1877                                 'sample'=> '',
1878                                 'tip'   => wfMsg('hr_tip'),
1879                                 'key'   => 'R'
1880                         )
1881                 );
1882                 $toolbar = "<div id='toolbar'>\n";
1883                 $toolbar.="<script type='$wgJsMimeType'>\n/*<![CDATA[*/\n";
1884
1885                 foreach($toolarray as $tool) {
1886                         $params = array(
1887                                 $image = $wgStylePath.'/common/images/'.$tool['image'],
1888                                 // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
1889                                 // Older browsers show a "speedtip" type message only for ALT.
1890                                 // Ideally these should be different, realistically they
1891                                 // probably don't need to be.
1892                                 $tip = $tool['tip'],
1893                                 $open = $tool['open'],
1894                                 $close = $tool['close'],
1895                                 $sample = $tool['sample'],
1896                                 $cssId = $tool['id'],
1897                         );
1898
1899                         $paramList = implode( ',',
1900                                 array_map( array( 'Xml', 'encodeJsVar' ), $params ) );
1901                         $toolbar.="addButton($paramList);\n";
1902                 }
1903
1904                 $toolbar.="/*]]>*/\n</script>";
1905                 $toolbar.="\n</div>";
1906                 return $toolbar;
1907         }
1908
1909         /**
1910          * Returns an array of html code of the following checkboxes:
1911          * minor and watch
1912          *
1913          * @param $tabindex Current tabindex
1914          * @param $skin Skin object
1915          * @param $checked Array of checkbox => bool, where bool indicates the checked
1916          *                 status of the checkbox
1917          *
1918          * @return array
1919          */
1920         public static function getCheckboxes( &$tabindex, $skin, $checked ) {
1921                 global $wgUser;
1922
1923                 $checkboxes = array();
1924
1925                 $checkboxes['minor'] = '';
1926                 $minorLabel = wfMsgExt('minoredit', array('parseinline'));
1927                 if ( $wgUser->isAllowed('minoredit') ) {
1928                         $attribs = array(
1929                                 'tabindex'  => ++$tabindex,
1930                                 'accesskey' => wfMsg( 'accesskey-minoredit' ),
1931                                 'id'        => 'wpMinoredit',
1932                         );
1933                         $checkboxes['minor'] =
1934                                 Xml::check( 'wpMinoredit', $checked['minor'], $attribs ) .
1935                                 "&nbsp;<label for='wpMinoredit'".$skin->tooltipAndAccesskey('minoredit').">{$minorLabel}</label>";
1936                 }
1937
1938                 $watchLabel = wfMsgExt('watchthis', array('parseinline'));
1939                 $checkboxes['watch'] = '';
1940                 if ( $wgUser->isLoggedIn() ) {
1941                         $attribs = array(
1942                                 'tabindex'  => ++$tabindex,
1943                                 'accesskey' => wfMsg( 'accesskey-watch' ),
1944                                 'id'        => 'wpWatchthis',
1945                         );
1946                         $checkboxes['watch'] =
1947                                 Xml::check( 'wpWatchthis', $checked['watch'], $attribs ) .
1948                                 "&nbsp;<label for='wpWatchthis'".$skin->tooltipAndAccesskey('watch').">{$watchLabel}</label>";
1949                 }
1950                 return $checkboxes;
1951         }
1952
1953         /**
1954          * Returns an array of html code of the following buttons:
1955          * save, diff, preview and live
1956          *
1957          * @param $tabindex Current tabindex
1958          *
1959          * @return array
1960          */
1961         public function getEditButtons(&$tabindex) {
1962                 global $wgLivePreview, $wgUser;
1963
1964                 $buttons = array();
1965
1966                 $temp = array(
1967                         'id'        => 'wpSave',
1968                         'name'      => 'wpSave',
1969                         'type'      => 'submit',
1970                         'tabindex'  => ++$tabindex,
1971                         'value'     => wfMsg('savearticle'),
1972                         'accesskey' => wfMsg('accesskey-save'),
1973                         'title'     => wfMsg( 'tooltip-save' ).' ['.wfMsg( 'accesskey-save' ).']',
1974                 );
1975                 $buttons['save'] = wfElement('input', $temp, '');
1976
1977                 ++$tabindex; // use the same for preview and live preview
1978                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
1979                         $temp = array(
1980                                 'id'        => 'wpPreview',
1981                                 'name'      => 'wpPreview',
1982                                 'type'      => 'submit',
1983                                 'tabindex'  => $tabindex,
1984                                 'value'     => wfMsg('showpreview'),
1985                                 'accesskey' => '',
1986                                 'title'     => wfMsg( 'tooltip-preview' ).' ['.wfMsg( 'accesskey-preview' ).']',
1987                                 'style'     => 'display: none;',
1988                         );
1989                         $buttons['preview'] = wfElement('input', $temp, '');
1990
1991                         $temp = array(
1992                                 'id'        => 'wpLivePreview',
1993                                 'name'      => 'wpLivePreview',
1994                                 'type'      => 'submit',
1995                                 'tabindex'  => $tabindex,
1996                                 'value'     => wfMsg('showlivepreview'),
1997                                 'accesskey' => wfMsg('accesskey-preview'),
1998                                 'title'     => '',
1999                                 'onclick'   => $this->doLivePreviewScript(),
2000                         );
2001                         $buttons['live'] = wfElement('input', $temp, '');
2002                 } else {
2003                         $temp = array(
2004                                 'id'        => 'wpPreview',
2005                                 'name'      => 'wpPreview',
2006                                 'type'      => 'submit',
2007                                 'tabindex'  => $tabindex,
2008                                 'value'     => wfMsg('showpreview'),
2009                                 'accesskey' => wfMsg('accesskey-preview'),
2010                                 'title'     => wfMsg( 'tooltip-preview' ).' ['.wfMsg( 'accesskey-preview' ).']',
2011                         );
2012                         $buttons['preview'] = wfElement('input', $temp, '');
2013                         $buttons['live'] = '';
2014                 }
2015
2016                 $temp = array(
2017                         'id'        => 'wpDiff',
2018                         'name'      => 'wpDiff',
2019                         'type'      => 'submit',
2020                         'tabindex'  => ++$tabindex,
2021                         'value'     => wfMsg('showdiff'),
2022                         'accesskey' => wfMsg('accesskey-diff'),
2023                         'title'     => wfMsg( 'tooltip-diff' ).' ['.wfMsg( 'accesskey-diff' ).']',
2024                 );
2025                 $buttons['diff'] = wfElement('input', $temp, '');
2026
2027                 wfRunHooks( 'EditPageBeforeEditButtons', array( &$this, &$buttons ) );
2028                 return $buttons;
2029         }
2030
2031         /**
2032          * Output preview text only. This can be sucked into the edit page
2033          * via JavaScript, and saves the server time rendering the skin as
2034          * well as theoretically being more robust on the client (doesn't
2035          * disturb the edit box's undo history, won't eat your text on
2036          * failure, etc).
2037          *
2038          * @todo This doesn't include category or interlanguage links.
2039          *       Would need to enhance it a bit, <s>maybe wrap them in XML
2040          *       or something...</s> that might also require more skin
2041          *       initialization, so check whether that's a problem.
2042          */
2043         function livePreview() {
2044                 global $wgOut;
2045                 $wgOut->disable();
2046                 header( 'Content-type: text/xml; charset=utf-8' );
2047                 header( 'Cache-control: no-cache' );
2048
2049                 $previewText = $this->getPreviewText();
2050                 #$categories = $skin->getCategoryLinks();
2051
2052                 $s =
2053                 '<?xml version="1.0" encoding="UTF-8" ?>' . "\n" .
2054                 Xml::tags( 'livepreview', null,
2055                         Xml::element( 'preview', null, $previewText )
2056                         #.      Xml::element( 'category', null, $categories )
2057                 );
2058                 echo $s;
2059         }
2060
2061
2062         /**
2063          * Get a diff between the current contents of the edit box and the
2064          * version of the page we're editing from.
2065          *
2066          * If this is a section edit, we'll replace the section as for final
2067          * save and then make a comparison.
2068          */
2069         function showDiff() {
2070                 $oldtext = $this->mArticle->fetchContent();
2071                 $newtext = $this->mArticle->replaceSection(
2072                         $this->section, $this->textbox1, $this->summary, $this->edittime );
2073                 $newtext = $this->mArticle->preSaveTransform( $newtext );
2074                 $oldtitle = wfMsgExt( 'currentrev', array('parseinline') );
2075                 $newtitle = wfMsgExt( 'yourtext', array('parseinline') );
2076                 if ( $oldtext !== false  || $newtext != '' ) {
2077                         $de = new DifferenceEngine( $this->mTitle );
2078                         $de->setText( $oldtext, $newtext );
2079                         $difftext = $de->getDiff( $oldtitle, $newtitle );
2080                         $de->showDiffStyle();
2081                 } else {
2082                         $difftext = '';
2083                 }
2084
2085                 global $wgOut;
2086                 $wgOut->addHtml( '<div id="wikiDiff">' . $difftext . '</div>' );
2087         }
2088
2089         /**
2090          * Filter an input field through a Unicode de-armoring process if it
2091          * came from an old browser with known broken Unicode editing issues.
2092          *
2093          * @param WebRequest $request
2094          * @param string $field
2095          * @return string
2096          * @private
2097          */
2098         function safeUnicodeInput( $request, $field ) {
2099                 $text = rtrim( $request->getText( $field ) );
2100                 return $request->getBool( 'safemode' )
2101                         ? $this->unmakesafe( $text )
2102                         : $text;
2103         }
2104
2105         /**
2106          * Filter an output field through a Unicode armoring process if it is
2107          * going to an old browser with known broken Unicode editing issues.
2108          *
2109          * @param string $text
2110          * @return string
2111          * @private
2112          */
2113         function safeUnicodeOutput( $text ) {
2114                 global $wgContLang;
2115                 $codedText = $wgContLang->recodeForEdit( $text );
2116                 return $this->checkUnicodeCompliantBrowser()
2117                         ? $codedText
2118                         : $this->makesafe( $codedText );
2119         }
2120
2121         /**
2122          * A number of web browsers are known to corrupt non-ASCII characters
2123          * in a UTF-8 text editing environment. To protect against this,
2124          * detected browsers will be served an armored version of the text,
2125          * with non-ASCII chars converted to numeric HTML character references.
2126          *
2127          * Preexisting such character references will have a 0 added to them
2128          * to ensure that round-trips do not alter the original data.
2129          *
2130          * @param string $invalue
2131          * @return string
2132          * @private
2133          */
2134         function makesafe( $invalue ) {
2135                 // Armor existing references for reversability.
2136                 $invalue = strtr( $invalue, array( "&#x" => "&#x0" ) );
2137
2138                 $bytesleft = 0;
2139                 $result = "";
2140                 $working = 0;
2141                 for( $i = 0; $i < strlen( $invalue ); $i++ ) {
2142                         $bytevalue = ord( $invalue{$i} );
2143                         if( $bytevalue <= 0x7F ) { //0xxx xxxx
2144                                 $result .= chr( $bytevalue );
2145                                 $bytesleft = 0;
2146                         } elseif( $bytevalue <= 0xBF ) { //10xx xxxx
2147                                 $working = $working << 6;
2148                                 $working += ($bytevalue & 0x3F);
2149                                 $bytesleft--;
2150                                 if( $bytesleft <= 0 ) {
2151                                         $result .= "&#x" . strtoupper( dechex( $working ) ) . ";";
2152                                 }
2153                         } elseif( $bytevalue <= 0xDF ) { //110x xxxx
2154                                 $working = $bytevalue & 0x1F;
2155                                 $bytesleft = 1;
2156                         } elseif( $bytevalue <= 0xEF ) { //1110 xxxx
2157                                 $working = $bytevalue & 0x0F;
2158                                 $bytesleft = 2;
2159                         } else { //1111 0xxx
2160                                 $working = $bytevalue & 0x07;
2161                                 $bytesleft = 3;
2162                         }
2163                 }
2164                 return $result;
2165         }
2166
2167         /**
2168          * Reverse the previously applied transliteration of non-ASCII characters
2169          * back to UTF-8. Used to protect data from corruption by broken web browsers
2170          * as listed in $wgBrowserBlackList.
2171          *
2172          * @param string $invalue
2173          * @return string
2174          * @private
2175          */
2176         function unmakesafe( $invalue ) {
2177                 $result = "";
2178                 for( $i = 0; $i < strlen( $invalue ); $i++ ) {
2179                         if( ( substr( $invalue, $i, 3 ) == "&#x" ) && ( $invalue{$i+3} != '0' ) ) {
2180                                 $i += 3;
2181                                 $hexstring = "";
2182                                 do {
2183                                         $hexstring .= $invalue{$i};
2184                                         $i++;
2185                                 } while( ctype_xdigit( $invalue{$i} ) && ( $i < strlen( $invalue ) ) );
2186
2187                                 // Do some sanity checks. These aren't needed for reversability,
2188                                 // but should help keep the breakage down if the editor
2189                                 // breaks one of the entities whilst editing.
2190                                 if ((substr($invalue,$i,1)==";") and (strlen($hexstring) <= 6)) {
2191                                         $codepoint = hexdec($hexstring);
2192                                         $result .= codepointToUtf8( $codepoint );
2193                                 } else {
2194                                         $result .= "&#x" . $hexstring . substr( $invalue, $i, 1 );
2195                                 }
2196                         } else {
2197                                 $result .= substr( $invalue, $i, 1 );
2198                         }
2199                 }
2200                 // reverse the transform that we made for reversability reasons.
2201                 return strtr( $result, array( "&#x0" => "&#x" ) );
2202         }
2203
2204         function noCreatePermission() {
2205                 global $wgOut;
2206                 $wgOut->setPageTitle( wfMsg( 'nocreatetitle' ) );
2207                 $wgOut->addWikiMsg( 'nocreatetext' );
2208         }
2209
2210         /**
2211          * If there are rows in the deletion log for this page, show them,
2212          * along with a nice little note for the user
2213          *
2214          * @param OutputPage $out
2215          */
2216         private function showDeletionLog( $out ) {
2217                 global $wgUser;
2218                 $loglist = new LogEventsList( $wgUser->getSkin(), $out );
2219                 $pager = new LogPager( $loglist, 'delete', false, $this->mTitle->getPrefixedText() );
2220                 if( $pager->getNumRows() > 0 ) {
2221                         $out->addHtml( '<div id="mw-recreate-deleted-warn">' );
2222                         $out->addWikiMsg( 'recreate-deleted-warn' );
2223                         $out->addHTML(
2224                                 $loglist->beginLogEventsList() .
2225                                 $pager->getBody() .
2226                                 $loglist->endLogEventsList()
2227                         );
2228                         $out->addHtml( '</div>' );
2229                 }
2230         }
2231
2232         /**
2233          * Attempt submission
2234          * @return bool false if output is done, true if the rest of the form should be displayed
2235          */
2236         function attemptSave() {
2237                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
2238
2239                 $resultDetails = false;
2240                 $value = $this->internalAttemptSave( $resultDetails, $wgUser->isAllowed('bot') && $wgRequest->getBool('bot', true) );
2241
2242                 if( $value == self::AS_SUCCESS_UPDATE || $value == self::AS_SUCCESS_NEW_ARTICLE ) {
2243                         $this->didSave = true;
2244                 }
2245
2246                 switch ($value) {
2247                         case self::AS_HOOK_ERROR_EXPECTED:
2248                         case self::AS_CONTENT_TOO_BIG:
2249                         case self::AS_ARTICLE_WAS_DELETED:
2250                         case self::AS_CONFLICT_DETECTED:
2251                         case self::AS_SUMMARY_NEEDED:
2252                         case self::AS_TEXTBOX_EMPTY:
2253                         case self::AS_MAX_ARTICLE_SIZE_EXCEEDED:
2254                         case self::AS_END:
2255                                 return true;
2256
2257                         case self::AS_HOOK_ERROR:
2258                         case self::AS_FILTERING:
2259                         case self::AS_SUCCESS_NEW_ARTICLE:
2260                         case self::AS_SUCCESS_UPDATE:
2261                                 return false;
2262
2263                         case self::AS_SPAM_ERROR:
2264                                 $this->spamPage ( $resultDetails['spam'] );
2265                                 return false;
2266
2267                         case self::AS_BLOCKED_PAGE_FOR_USER:
2268                                 $this->blockedPage();
2269                                 return false;
2270
2271                         case self::AS_IMAGE_REDIRECT_ANON:
2272                                 $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
2273                                 return false;
2274
2275                         case self::AS_READ_ONLY_PAGE_ANON:
2276                                 $this->userNotLoggedInPage();
2277                                 return false;
2278
2279                         case self::AS_READ_ONLY_PAGE_LOGGED:
2280                         case self::AS_READ_ONLY_PAGE:
2281                                 $wgOut->readOnlyPage();
2282                                 return false;
2283
2284                         case self::AS_RATE_LIMITED:
2285                                 $wgOut->rateLimited();
2286                                 return false;
2287
2288                         case self::AS_NO_CREATE_PERMISSION;
2289                                 $this->noCreatePermission();
2290                                 return;
2291
2292                         case self::AS_BLANK_ARTICLE:
2293                                 $wgOut->redirect( $wgTitle->getFullURL() );
2294                                 return false;
2295
2296                         case self::AS_IMAGE_REDIRECT_LOGGED:
2297                                 $wgOut->permissionRequired( 'upload' );
2298                                 return false;
2299                 }
2300         }
2301 }