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