includes/EditPage.php

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