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                 $this->mArticle->forUpdate( true ); # Lock the article
 734
 735                 wfDebug("timestamp: {$this->mArticle->getTimestamp()}, edittime: {$this->edittime}\n");
 736
 737                 if( $this->mArticle->getTimestamp() != $this->edittime ) {
 738                         $this->isConflict = true;
 739                         if( $this->section == 'new' ) {
 740                                 if( $this->mArticle->getUserText() == $wgUser->getName() &&
 741                                         $this->mArticle->getComment() == $this->summary ) {
 742                                         // Probably a duplicate submission of a new comment.
 743                                         // This can happen when squid resends a request after
 744                                         // a timeout but the first one actually went through.
 745                                         wfDebug( "EditPage::editForm duplicate new section submission; trigger edit conflict!\n" );
 746                                 } else {
 747                                         // New comment; suppress conflict.
 748                                         $this->isConflict = false;
 749                                         wfDebug( "EditPage::editForm conflict suppressed; new section\n" );
 750                                 }
 751                         }
 752                 }
 753                 $userid = $wgUser->getID();
 754
 755                 if ( $this->isConflict) {
 756                         wfDebug( "EditPage::editForm conflict! getting section '$this->section' for time '$this->edittime' (article time '" .
 757                                 $this->mArticle->getTimestamp() . "'\n" );
 758                         $text = $this->mArticle->replaceSection( $this->section, $this->textbox1, $this->summary, $this->edittime);
 759                 }
 760                 else {
 761                         wfDebug( "EditPage::editForm getting section '$this->section'\n" );
 762                         $text = $this->mArticle->replaceSection( $this->section, $this->textbox1, $this->summary);
 763                 }
 764                 if( is_null( $text ) ) {
 765                         wfDebug( "EditPage::editForm activating conflict; section replace failed.\n" );
 766                         $this->isConflict = true;
 767                         $text = $this->textbox1;
 768                 }
 769
 770                 # Suppress edit conflict with self, except for section edits where merging is required.
 771                 if ( ( $this->section == '' ) && ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
 772                         wfDebug( "Suppressing edit conflict, same user.\n" );
 773                         $this->isConflict = false;
 774                 } else {
 775                         # switch from section editing to normal editing in edit conflict
 776                         if($this->isConflict) {
 777                                 # Attempt merge
 778                                 if( $this->mergeChangesInto( $text ) ){
 779                                         // Successful merge! Maybe we should tell the user the good news?
 780                                         $this->isConflict = false;
 781                                         wfDebug( "Suppressing edit conflict, successful merge.\n" );
 782                                 } else {
 783                                         $this->section = '';
 784                                         $this->textbox1 = $text;
 785                                         wfDebug( "Keeping edit conflict, failed merge.\n" );
 786                                 }
 787                         }
 788                 }
 789
 790                 if ( $this->isConflict ) {
 791                         wfProfileOut( $fname );
 792                         return true;
 793                 }
 794
 795                 $oldtext = $this->mArticle->getContent();
 796
 797                 # Handle the user preference to force summaries here, but not for null edits
 798                 if( $this->section != 'new' && !$this->allowBlankSummary && $wgUser->getOption( 'forceeditsummary')
 799                         &&  0 != strcmp($oldtext, $text) && !Article::getRedirectAutosummary( $text )) {
 800                         if( md5( $this->summary ) == $this->autoSumm ) {
 801                                 $this->missingSummary = true;
 802                                 wfProfileOut( $fname );
 803                                 return( true );
 804                         }
 805                 }
 806
 807                 #And a similar thing for new sections
 808                 if( $this->section == 'new' && !$this->allowBlankSummary && $wgUser->getOption( 'forceeditsummary' ) ) {
 809                         if (trim($this->summary) == '') {
 810                                 $this->missingSummary = true;
 811                                 wfProfileOut( $fname );
 812                                 return( true );
 813                         }
 814                 }
 815
 816                 # All's well
 817                 wfProfileIn( "$fname-sectionanchor" );
 818                 $sectionanchor = '';
 819                 if( $this->section == 'new' ) {
 820                         if ( $this->textbox1 == '' ) {
 821                                 $this->missingComment = true;
 822                                 return true;
 823                         }
 824                         if( $this->summary != '' ) {
 825                                 $sectionanchor = $this->sectionAnchor( $this->summary );
 826                         }
 827                 } elseif( $this->section != '' ) {
 828                         # Try to get a section anchor from the section source, redirect to edited section if header found
 829                         # XXX: might be better to integrate this into Article::replaceSection
 830                         # for duplicate heading checking and maybe parsing
 831                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
 832                         # we can't deal with anchors, includes, html etc in the header for now,
 833                         # headline would need to be parsed to improve this
 834                         if($hasmatch and strlen($matches[2]) > 0) {
 835                                 $sectionanchor = $this->sectionAnchor( $matches[2] );
 836                         }
 837                 }
 838                 wfProfileOut( "$fname-sectionanchor" );
 839
 840                 // Save errors may fall down to the edit form, but we've now
 841                 // merged the section into full text. Clear the section field
 842                 // so that later submission of conflict forms won't try to
 843                 // replace that into a duplicated mess.
 844                 $this->textbox1 = $text;
 845                 $this->section = '';
 846
 847                 // Check for length errors again now that the section is merged in
 848                 $this->kblength = (int)(strlen( $text ) / 1024);
 849                 if ( $this->kblength > $wgMaxArticleSize ) {
 850                         $this->tooBig = true;
 851                         wfProfileOut( $fname );
 852                         return true;
 853                 }
 854
 855                 # update the article here
 856                 if( $this->mArticle->updateArticle( $text, $this->summary, $this->minoredit,
 857                         $this->watchthis, '', $sectionanchor ) ) {
 858                         wfProfileOut( $fname );
 859                         return false;
 860                 } else {
 861                         $this->isConflict = true;
 862                 }
 863                 wfProfileOut( $fname );
 864                 return true;
 865         }
 866
 867         /**
 868          * Initialise form fields in the object
 869          * Called on the first invocation, e.g. when a user clicks an edit link
 870          */
 871         function initialiseForm() {
 872                 $this->edittime = $this->mArticle->getTimestamp();
 873                 $this->summary = '';
 874                 $this->textbox1 = $this->getContent();
 875                 if ( !$this->mArticle->exists() && $this->mArticle->mTitle->getNamespace() == NS_MEDIAWIKI )
 876                         $this->textbox1 = wfMsgWeirdKey( $this->mArticle->mTitle->getText() );
 877                 wfProxyCheck();
 878         }
 879
 880         /**
 881          * Send the edit form and related headers to $wgOut
 882          * @param $formCallback Optional callable that takes an OutputPage
 883          *                      parameter; will be called during form output
 884          *                      near the top, for captchas and the like.
 885          */
 886         function showEditForm( $formCallback=null ) {
 887                 global $wgOut, $wgUser, $wgLang, $wgContLang, $wgMaxArticleSize;
 888
 889                 $fname = 'EditPage::showEditForm';
 890                 wfProfileIn( $fname );
 891
 892                 $sk = $wgUser->getSkin();
 893
 894                 wfRunHooks( 'EditPage::showEditForm:initial', array( &$this ) ) ;
 895
 896                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 897
 898                 # Enabled article-related sidebar, toplinks, etc.
 899                 $wgOut->setArticleRelated( true );
 900
 901                 if ( $this->isConflict ) {
 902                         $s = wfMsg( 'editconflict', $this->mTitle->getPrefixedText() );
 903                         $wgOut->setPageTitle( $s );
 904                         $wgOut->addWikiText( wfMsg( 'explainconflict' ) );
 905
 906                         $this->textbox2 = $this->textbox1;
 907                         $this->textbox1 = $this->getContent();
 908                         $this->edittime = $this->mArticle->getTimestamp();
 909                 } else {
 910
 911                         if( $this->section != '' ) {
 912                                 if( $this->section == 'new' ) {
 913                                         $s = wfMsg('editingcomment', $this->mTitle->getPrefixedText() );
 914                                 } else {
 915                                         $s = wfMsg('editingsection', $this->mTitle->getPrefixedText() );
 916                                         $matches = array();
 917                                         if( !$this->summary && !$this->preview && !$this->diff ) {
 918                                                 preg_match( "/^(=+)(.+)\\1/mi",
 919                                                         $this->textbox1,
 920                                                         $matches );
 921                                                 if( !empty( $matches[2] ) ) {
 922                                                         $this->summary = "/* ". trim($matches[2])." */ ";
 923                                                 }
 924                                         }
 925                                 }
 926                         } else {
 927                                 $s = wfMsg( 'editing', $this->mTitle->getPrefixedText() );
 928                         }
 929                         $wgOut->setPageTitle( $s );
 930
 931                         if ( $this->missingComment ) {
 932                                 $wgOut->addWikiText( wfMsg( 'missingcommenttext' ) );
 933                         }
 934
 935                         if( $this->missingSummary && $this->section != 'new' ) {
 936                                 $wgOut->addWikiText( wfMsg( 'missingsummary' ) );
 937                         }
 938
 939                         if( $this->missingSummary && $this->section == 'new' ) {
 940                                 $wgOut->addWikiText( wfMsg( 'missingcommentheader' ) );
 941                         }
 942
 943                         if( !$this->hookError == '' ) {
 944                                 $wgOut->addWikiText( $this->hookError );
 945                         }
 946
 947                         if ( !$this->checkUnicodeCompliantBrowser() ) {
 948                                 $wgOut->addWikiText( wfMsg( 'nonunicodebrowser') );
 949                         }
 950                         if ( isset( $this->mArticle ) && isset( $this->mArticle->mRevision ) ) {
 951                         // Let sysop know that this will make private content public if saved
 952                                 if( $this->mArticle->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
 953                                         $wgOut->addWikiText( wfMsg( 'rev-deleted-text-view' ) );
 954                                 }
 955                                 if( !$this->mArticle->mRevision->isCurrent() ) {
 956                                         $this->mArticle->setOldSubtitle( $this->mArticle->mRevision->getId() );
 957                                         $wgOut->addWikiText( wfMsg( 'editingold' ) );
 958                                 }
 959                         }
 960                 }
 961
 962                 if( wfReadOnly() ) {
 963                         $wgOut->addWikiText( wfMsg( 'readonlywarning' ) );
 964                 } elseif( $wgUser->isAnon() && $this->formtype != 'preview' ) {
 965                         $wgOut->addWikiText( wfMsg( 'anoneditwarning' ) );
 966                 } else {
 967                         if( $this->isCssJsSubpage && $this->formtype != 'preview' ) {
 968                                 # Check the skin exists
 969                                 if( $this->isValidCssJsSubpage ) {
 970                                         $wgOut->addWikiText( wfMsg( 'usercssjsyoucanpreview' ) );
 971                                 } else {
 972                                         $wgOut->addWikiText( wfMsg( 'userinvalidcssjstitle', $this->mTitle->getSkinFromCssJsSubpage() ) );
 973                                 }
 974                         }
 975                 }
 976
 977                 if( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
 978                         # Show a warning if editing an interface message
 979                         $wgOut->addWikiText( wfMsg( 'editinginterface' ) );
 980                 } elseif( $this->mTitle->isProtected( 'edit' ) ) {
 981                         # Is the title semi-protected?
 982                         if( $this->mTitle->isSemiProtected() ) {
 983                                 $notice = wfMsg( 'semiprotectedpagewarning' );
 984                                 if( wfEmptyMsg( 'semiprotectedpagewarning', $notice ) || $notice == '-' )
 985                                         $notice = '';
 986                         } else {
 987                                 # It's either cascading protection or regular protection; work out which
 988                                 $cascadeSources = $this->mTitle->getCascadeProtectionSources();
 989                                 if( $cascadeSources && count( $cascadeSources ) > 0 ) {
 990                                         # Cascading protection; explain, and list the titles responsible
 991                                         $notice = wfMsg( 'cascadeprotectedwarning' ) . "\n";
 992                                         foreach( $cascadeSources as $source )
 993                                                 $notice .= '* [[:' . $source->getPrefixedText() . "]]\n";
 994                                 } else {
 995                                         # Regular protection
 996                                         $notice = wfMsg( 'protectedpagewarning' );
 997                                 }
 998                         }
 999                         $wgOut->addWikiText( $notice );
1000                 }
1001
1002                 if ( $this->kblength === false ) {
1003                         $this->kblength = (int)(strlen( $this->textbox1 ) / 1024);
1004                 }
1005                 if ( $this->tooBig || $this->kblength > $wgMaxArticleSize ) {
1006                         $wgOut->addWikiText( wfMsg( 'longpageerror', $wgLang->formatNum( $this->kblength ), $wgMaxArticleSize ) );
1007                 } elseif( $this->kblength > 29 ) {
1008                         $wgOut->addWikiText( wfMsg( 'longpagewarning', $wgLang->formatNum( $this->kblength ) ) );
1009                 }
1010
1011                 #need to parse the preview early so that we know which templates are used,
1012                 #otherwise users with "show preview after edit box" will get a blank list
1013                 if ( $this->formtype == 'preview' ) {
1014                         $previewOutput = $this->getPreviewText();
1015                 }
1016
1017                 $rows = $wgUser->getIntOption( 'rows' );
1018                 $cols = $wgUser->getIntOption( 'cols' );
1019
1020                 $ew = $wgUser->getOption( 'editwidth' );
1021                 if ( $ew ) $ew = " style=\"width:100%\"";
1022                 else $ew = '';
1023
1024                 $q = 'action=submit';
1025                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
1026                 $action = $this->mTitle->escapeLocalURL( $q );
1027
1028                 $summary = wfMsg('summary');
1029                 $subject = wfMsg('subject');
1030
1031                 $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
1032                                 wfMsgExt('cancel', array('parseinline')) );
1033                 $edithelpurl = Skin::makeInternalOrExternalUrl( wfMsgForContent( 'edithelppage' ));
1034                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
1035                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
1036                         htmlspecialchars( wfMsg( 'newwindow' ) );
1037
1038                 global $wgRightsText;
1039                 $copywarn = "<div id=\"editpage-copywarn\">\n" .
1040                         wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
1041                                 '[[' . wfMsgForContent( 'copyrightpage' ) . ']]',
1042                                 $wgRightsText ) . "\n</div>";
1043
1044                 if( $wgUser->getOption('showtoolbar') and !$this->isCssJsSubpage ) {
1045                         # prepare toolbar for edit buttons
1046                         $toolbar = $this->getEditToolbar();
1047                 } else {
1048                         $toolbar = '';
1049                 }
1050
1051                 // activate checkboxes if user wants them to be always active
1052                 if( !$this->preview && !$this->diff ) {
1053                         # Sort out the "watch" checkbox
1054                         if( $wgUser->getOption( 'watchdefault' ) ) {
1055                                 # Watch all edits
1056                                 $this->watchthis = true;
1057                         } elseif( $wgUser->getOption( 'watchcreations' ) && !$this->mTitle->exists() ) {
1058                                 # Watch creations
1059                                 $this->watchthis = true;
1060                         } elseif( $this->mTitle->userIsWatching() ) {
1061                                 # Already watched
1062                                 $this->watchthis = true;
1063                         }
1064
1065                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
1066                 }
1067
1068                 $wgOut->addHTML( $this->editFormPageTop );
1069
1070                 if ( $wgUser->getOption( 'previewontop' ) ) {
1071
1072                         if ( 'preview' == $this->formtype ) {
1073                                 $this->showPreview( $previewOutput );
1074                         } else {
1075                                 $wgOut->addHTML( '<div id="wikiPreview"></div>' );
1076                         }
1077
1078                         if ( 'diff' == $this->formtype ) {
1079                                 $wgOut->addHTML( $this->getDiff() );
1080                         }
1081                 }
1082
1083
1084                 $wgOut->addHTML( $this->editFormTextTop );
1085
1086                 # if this is a comment, show a subject line at the top, which is also the edit summary.
1087                 # Otherwise, show a summary field at the bottom
1088                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
1089                 if( $this->section == 'new' ) {
1090                         $commentsubject="<span id='wpSummaryLabel'><label for='wpSummary'>{$subject}:</label></span>\n<div class='editOptions'>\n<input tabindex='1' type='text' value=\"$summarytext\" name='wpSummary' id='wpSummary' maxlength='200' size='60' /><br />";
1091                         $editsummary = '';
1092                         $subjectpreview = $summarytext && $this->preview ? "<div class=\"mw-summary-preview\">".wfMsg('subject-preview').':'.$sk->commentBlock( $this->summary, $this->mTitle )."</div>\n" : '';
1093                         $summarypreview = '';
1094                 } else {
1095                         $commentsubject = '';
1096                         $editsummary="<span id='wpSummaryLabel'><label for='wpSummary'>{$summary}:</label></span>\n<div class='editOptions'>\n<input tabindex='2' type='text' value=\"$summarytext\" name='wpSummary' id='wpSummary' maxlength='200' size='60' /><br />";
1097                         $summarypreview = $summarytext && $this->preview ? "<div class=\"mw-summary-preview\">".wfMsg('summary-preview').':'.$sk->commentBlock( $this->summary, $this->mTitle )."</div>\n" : '';
1098                         $subjectpreview = '';
1099                 }
1100
1101                 # Set focus to the edit box on load, except on preview or diff, where it would interfere with the display
1102                 if( !$this->preview && !$this->diff ) {
1103                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
1104                 }
1105                 $templates = ($this->preview || $this->section) ? $this->mPreviewTemplates : $this->mArticle->getUsedTemplates();
1106                 $formattedtemplates = $sk->formatTemplates( $templates, $this->preview, $this->section != '');
1107
1108                 global $wgUseMetadataEdit ;
1109                 if ( $wgUseMetadataEdit ) {
1110                         $metadata = $this->mMetaData ;
1111                         $metadata = htmlspecialchars( $wgContLang->recodeForEdit( $metadata ) ) ;
1112                         $top = wfMsgWikiHtml( 'metadata_help' );
1113                         $metadata = $top . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
1114                 }
1115                 else $metadata = "" ;
1116
1117                 $hidden = '';
1118                 $recreate = '';
1119                 if ($this->deletedSinceEdit) {
1120                         if ( 'save' != $this->formtype ) {
1121                                 $wgOut->addWikiText( wfMsg('deletedwhileediting'));
1122                         } else {
1123                                 // Hide the toolbar and edit area, use can click preview to get it back
1124                                 // Add an confirmation checkbox and explanation.
1125                                 $toolbar = '';
1126                                 $hidden = 'type="hidden" style="display:none;"';
1127                                 $recreate = $wgOut->parse( wfMsg( 'confirmrecreate',  $this->lastDelete->user_name , $this->lastDelete->log_comment ));
1128                                 $recreate .=
1129                                         "<br /><input tabindex='1' type='checkbox' value='1' name='wpRecreate' id='wpRecreate' />".
1130                                         "<label for='wpRecreate' title='".wfMsg('tooltip-recreate')."'>". wfMsg('recreate')."</label>";
1131                         }
1132                 }
1133
1134                 $tabindex = 2;
1135
1136                 $checkboxes = self::getCheckboxes( $tabindex, $sk,
1137                         array( 'minor' => $this->minoredit, 'watch' => $this->watchthis ) );
1138
1139                 $checkboxhtml = implode( $checkboxes, "\n" );
1140
1141                 $buttons = $this->getEditButtons( $tabindex );
1142                 $buttonshtml = implode( $buttons, "\n" );
1143
1144                 $safemodehtml = $this->checkUnicodeCompliantBrowser()
1145                         ? '' : Xml::hidden( 'safemode', '1' );
1146
1147                 $wgOut->addHTML( <<<END
1148 {$toolbar}
1149 <form id="editform" name="editform" method="post" action="$action" enctype="multipart/form-data">
1150 END
1151 );
1152
1153                 if( is_callable( $formCallback ) ) {
1154                         call_user_func_array( $formCallback, array( &$wgOut ) );
1155                 }
1156
1157                 // Put these up at the top to ensure they aren't lost on early form submission
1158                 $wgOut->addHTML( "
1159 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
1160 <input type='hidden' value=\"{$this->starttime}\" name=\"wpStarttime\" />\n
1161 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n
1162 <input type='hidden' value=\"{$this->scrolltop}\" name=\"wpScrolltop\" id=\"wpScrolltop\" />\n" );
1163
1164                 $wgOut->addHTML( <<<END
1165 $recreate
1166 {$commentsubject}
1167 {$subjectpreview}
1168 <textarea tabindex='1' accesskey="," name="wpTextbox1" id="wpTextbox1" rows='{$rows}'
1169 cols='{$cols}'{$ew} $hidden>
1170 END
1171 . htmlspecialchars( $this->safeUnicodeOutput( $this->textbox1 ) ) .
1172 "
1173 </textarea>
1174                 " );
1175
1176                 $wgOut->addWikiText( $copywarn );
1177                 $wgOut->addHTML( $this->editFormTextAfterWarn );
1178                 $wgOut->addHTML( "
1179 {$metadata}
1180 {$editsummary}
1181 {$summarypreview}
1182 {$checkboxhtml}
1183 {$safemodehtml}
1184 ");
1185
1186                 $wgOut->addHTML(
1187 "<div class='editButtons'>
1188 {$buttonshtml}
1189         <span class='editHelp'>{$cancel} | {$edithelp}</span>
1190 </div><!-- editButtons -->
1191 </div><!-- editOptions -->");
1192
1193                 $wgOut->addHtml( '<div class="mw-editTools">' );
1194                 $wgOut->addWikiText( wfMsgForContent( 'edittools' ) );
1195                 $wgOut->addHtml( '</div>' );
1196
1197                 $wgOut->addHTML( $this->editFormTextAfterTools );
1198
1199                 $wgOut->addHTML( "
1200 <div class='templatesUsed'>
1201 {$formattedtemplates}
1202 </div>
1203 " );
1204
1205                 /**
1206                  * To make it harder for someone to slip a user a page
1207                  * which submits an edit form to the wiki without their
1208                  * knowledge, a random token is associated with the login
1209                  * session. If it's not passed back with the submission,
1210                  * we won't save the page, or render user JavaScript and
1211                  * CSS previews.
1212                  *
1213                  * For anon editors, who may not have a session, we just
1214                  * include the constant suffix to prevent editing from
1215                  * broken text-mangling proxies.
1216                  */
1217                 if ( $wgUser->isLoggedIn() )
1218                         $token = htmlspecialchars( $wgUser->editToken() );
1219                 else
1220                         $token = EDIT_TOKEN_SUFFIX;
1221                 $wgOut->addHTML( "\n<input type='hidden' value=\"$token\" name=\"wpEditToken\" />\n" );
1222
1223
1224                 # If a blank edit summary was previously provided, and the appropriate
1225                 # user preference is active, pass a hidden tag here. This will stop the
1226                 # user being bounced back more than once in the event that a summary
1227                 # is not required.
1228                 if( $this->missingSummary ) {
1229                         $wgOut->addHTML( "<input type=\"hidden\" name=\"wpIgnoreBlankSummary\" value=\"1\" />\n" );
1230                 }
1231
1232                 # For a bit more sophisticated detection of blank summaries, hash the
1233                 # automatic one and pass that in a hidden field.
1234                 $autosumm = $this->autoSumm ? $this->autoSumm : md5( $this->summary );
1235                 $wgOut->addHtml( wfHidden( 'wpAutoSummary', $autosumm ) );
1236
1237                 if ( $this->isConflict ) {
1238                         $wgOut->addWikiText( '==' . wfMsg( "yourdiff" ) . '==' );
1239
1240                         $de = new DifferenceEngine( $this->mTitle );
1241                         $de->setText( $this->textbox2, $this->textbox1 );
1242                         $de->showDiff( wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
1243
1244                         $wgOut->addWikiText( '==' . wfMsg( "yourtext" ) . '==' );
1245                         $wgOut->addHTML( "<textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
1246                                 . htmlspecialchars( $this->safeUnicodeOutput( $this->textbox2 ) ) . "\n</textarea>" );
1247                 }
1248                 $wgOut->addHTML( $this->editFormTextBottom );
1249                 $wgOut->addHTML( "</form>\n" );
1250                 if ( !$wgUser->getOption( 'previewontop' ) ) {
1251
1252                         if ( $this->formtype == 'preview') {
1253                                 $this->showPreview( $previewOutput );
1254                         } else {
1255                                 $wgOut->addHTML( '<div id="wikiPreview"></div>' );
1256                         }
1257
1258                         if ( $this->formtype == 'diff') {
1259                                 $wgOut->addHTML( $this->getDiff() );
1260                         }
1261
1262                 }
1263
1264                 wfProfileOut( $fname );
1265         }
1266
1267         /**
1268          * Append preview output to $wgOut.
1269          * Includes category rendering if this is a category page.
1270          *
1271          * @param string $text The HTML to be output for the preview.
1272          */
1273         private function showPreview( $text ) {
1274                 global $wgOut;
1275
1276                 $wgOut->addHTML( '<div id="wikiPreview">' );
1277                 if($this->mTitle->getNamespace() == NS_CATEGORY) {
1278                         $this->mArticle->openShowCategory();
1279                 }
1280                 $wgOut->addHTML( $text );
1281                 if($this->mTitle->getNamespace() == NS_CATEGORY) {
1282                         $this->mArticle->closeShowCategory();
1283                 }
1284                 $wgOut->addHTML( '</div>' );
1285         }
1286
1287         /**
1288          * Live Preview lets us fetch rendered preview page content and
1289          * add it to the page without refreshing the whole page.
1290          * If not supported by the browser it will fall through to the normal form
1291          * submission method.
1292          *
1293          * This function outputs a script tag to support live preview, and
1294          * returns an onclick handler which should be added to the attributes
1295          * of the preview button
1296          */
1297         function doLivePreviewScript() {
1298                 global $wgStylePath, $wgJsMimeType, $wgStyleVersion, $wgOut, $wgTitle;
1299                 $wgOut->addHTML( '<script type="'.$wgJsMimeType.'" src="' .
1300                         htmlspecialchars( "$wgStylePath/common/preview.js?$wgStyleVersion" ) .
1301                         '"></script>' . "\n" );
1302                 $liveAction = $wgTitle->getLocalUrl( 'action=submit&wpPreview=true&live=true' );
1303                 return "return !livePreview(" .
1304                         "getElementById('wikiPreview')," .
1305                         "editform.wpTextbox1.value," .
1306                         '"' . $liveAction . '"' . ")";
1307         }
1308
1309         function getLastDelete() {
1310                 $dbr = wfGetDB( DB_SLAVE );
1311                 $fname = 'EditPage::getLastDelete';
1312                 $res = $dbr->select(
1313                         array( 'logging', 'user' ),
1314                         array( 'log_type',
1315                                'log_action',
1316                                'log_timestamp',
1317                                'log_user',
1318                                'log_namespace',
1319                                'log_title',
1320                                'log_comment',
1321                                'log_params',
1322                                'user_name', ),
1323                         array( 'log_namespace' => $this->mTitle->getNamespace(),
1324                                'log_title' => $this->mTitle->getDBkey(),
1325                                'log_type' => 'delete',
1326                                'log_action' => 'delete',
1327                                'user_id=log_user' ),
1328                         $fname,
1329                         array( 'LIMIT' => 1, 'ORDER BY' => 'log_timestamp DESC' ) );
1330
1331                 if($dbr->numRows($res) == 1) {
1332                         while ( $x = $dbr->fetchObject ( $res ) )
1333                                 $data = $x;
1334                         $dbr->freeResult ( $res ) ;
1335                 } else {
1336                         $data = null;
1337                 }
1338                 return $data;
1339         }
1340
1341         /**
1342          * @todo document
1343          */
1344         function getPreviewText() {
1345                 global $wgOut, $wgUser, $wgTitle, $wgParser;
1346
1347                 $fname = 'EditPage::getPreviewText';
1348                 wfProfileIn( $fname );
1349
1350                 if ( $this->mTriedSave && !$this->mTokenOk ) {
1351                         $msg = 'session_fail_preview';
1352                 } else {
1353                         $msg = 'previewnote';
1354                 }
1355                 $previewhead = '<h2>' . htmlspecialchars( wfMsg( 'preview' ) ) . "</h2>\n" .
1356                         "<div class='previewnote'>" . $wgOut->parse( wfMsg( $msg ) ) . "</div>\n";
1357                 if ( $this->isConflict ) {
1358                         $previewhead.='<h2>' . htmlspecialchars( wfMsg( 'previewconflict' ) ) . "</h2>\n";
1359                 }
1360
1361                 $parserOptions = ParserOptions::newFromUser( $wgUser );
1362                 $parserOptions->setEditSection( false );
1363
1364                 global $wgRawHtml;
1365                 if( $wgRawHtml && !$this->mTokenOk ) {
1366                         // Could be an offsite preview attempt. This is very unsafe if
1367                         // HTML is enabled, as it could be an attack.
1368                         return $wgOut->parse( "<div class='previewnote'>" .
1369                                 wfMsg( 'session_fail_preview_html' ) . "</div>" );
1370                 }
1371
1372                 # don't parse user css/js, show message about preview
1373                 # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
1374
1375                 if ( $this->isCssJsSubpage ) {
1376                         if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
1377                                 $previewtext = wfMsg('usercsspreview');
1378                         } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
1379                                 $previewtext = wfMsg('userjspreview');
1380                         }
1381                         $parserOptions->setTidy(true);
1382                         $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
1383                         $wgOut->addHTML( $parserOutput->mText );
1384                         wfProfileOut( $fname );
1385                         return $previewhead;
1386                 } else {
1387                         $toparse = $this->textbox1;
1388
1389                         # If we're adding a comment, we need to show the
1390                         # summary as the headline
1391                         if($this->section=="new" && $this->summary!="") {
1392                                 $toparse="== {$this->summary} ==\n\n".$toparse;
1393                         }
1394
1395                         if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData ;
1396                         $parserOptions->setTidy(true);
1397                         $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ) ."\n\n",
1398                                         $wgTitle, $parserOptions );
1399
1400                         $previewHTML = $parserOutput->getText();
1401                         $wgOut->addParserOutputNoText( $parserOutput );
1402
1403                         foreach ( $parserOutput->getTemplates() as $ns => $template)
1404                                 foreach ( array_keys( $template ) as $dbk)
1405                                         $this->mPreviewTemplates[] = Title::makeTitle($ns, $dbk);
1406
1407                         wfProfileOut( $fname );
1408                         return $previewhead . $previewHTML;
1409                 }
1410         }
1411
1412         /**
1413          * Call the stock "user is blocked" page
1414          */
1415         function blockedPage() {
1416                 global $wgOut, $wgUser;
1417                 $wgOut->blockedPage( false ); # Standard block notice on the top, don't 'return'
1418
1419                 # If the user made changes, preserve them when showing the markup
1420                 # (This happens when a user is blocked during edit, for instance)
1421                 $first = $this->firsttime || ( !$this->save && $this->textbox1 == '' );
1422                 if( $first ) {
1423                         $source = $this->mTitle->exists() ? $this->getContent() : false;
1424                 } else {
1425                         $source = $this->textbox1;
1426                 }
1427
1428                 # Spit out the source or the user's modified version
1429                 if( $source !== false ) {
1430                         $rows = $wgUser->getOption( 'rows' );
1431                         $cols = $wgUser->getOption( 'cols' );
1432                         $attribs = array( 'id' => 'wpTextbox1', 'name' => 'wpTextbox1', 'cols' => $cols, 'rows' => $rows, 'readonly' => 'readonly' );
1433                         $wgOut->addHtml( '<hr />' );
1434                         $wgOut->addWikiText( wfMsg( $first ? 'blockedoriginalsource' : 'blockededitsource', $this->mTitle->getPrefixedText() ) );
1435                         $wgOut->addHtml( wfOpenElement( 'textarea', $attribs ) . htmlspecialchars( $source ) . wfCloseElement( 'textarea' ) );
1436                 }
1437         }
1438
1439         /**
1440          * Produce the stock "please login to edit pages" page
1441          */
1442         function userNotLoggedInPage() {
1443                 global $wgUser, $wgOut;
1444                 $skin = $wgUser->getSkin();
1445
1446                 $loginTitle = SpecialPage::getTitleFor( 'Userlogin' );
1447                 $loginLink = $skin->makeKnownLinkObj( $loginTitle, wfMsgHtml( 'loginreqlink' ), 'returnto=' . $this->mTitle->getPrefixedUrl() );
1448
1449                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
1450                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1451                 $wgOut->setArticleRelated( false );
1452
1453                 $wgOut->addHtml( wfMsgWikiHtml( 'whitelistedittext', $loginLink ) );
1454                 $wgOut->returnToMain( false, $this->mTitle->getPrefixedUrl() );
1455         }
1456
1457         /**
1458          * Creates a basic error page which informs the user that
1459          * they have to validate their email address before being
1460          * allowed to edit.
1461          */
1462         function userNotConfirmedPage() {
1463                 global $wgOut;
1464
1465                 $wgOut->setPageTitle( wfMsg( 'confirmedittitle' ) );
1466                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1467                 $wgOut->setArticleRelated( false );
1468
1469                 $wgOut->addWikiText( wfMsg( 'confirmedittext' ) );
1470                 $wgOut->returnToMain( false );
1471         }
1472
1473         /**
1474          * Produce the stock "your edit contains spam" page
1475          *
1476          * @param $match Text which triggered one or more filters
1477          */
1478         function spamPage( $match = false ) {
1479                 global $wgOut;
1480
1481                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
1482                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1483                 $wgOut->setArticleRelated( false );
1484
1485                 $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
1486                 if ( $match )
1487                         $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$match}</nowiki>" ) );
1488
1489                 $wgOut->returnToMain( false );
1490         }
1491
1492         /**
1493          * @private
1494          * @todo document
1495          */
1496         function mergeChangesInto( &$editText ){
1497                 $fname = 'EditPage::mergeChangesInto';
1498                 wfProfileIn( $fname );
1499
1500                 $db = wfGetDB( DB_MASTER );
1501
1502                 // This is the revision the editor started from
1503                 $baseRevision = Revision::loadFromTimestamp(
1504                         $db, $this->mArticle->mTitle, $this->edittime );
1505                 if( is_null( $baseRevision ) ) {
1506                         wfProfileOut( $fname );
1507                         return false;
1508                 }
1509                 $baseText = $baseRevision->getText();
1510
1511                 // The current state, we want to merge updates into it
1512                 $currentRevision =  Revision::loadFromTitle(
1513                         $db, $this->mArticle->mTitle );
1514                 if( is_null( $currentRevision ) ) {
1515                         wfProfileOut( $fname );
1516                         return false;
1517                 }
1518                 $currentText = $currentRevision->getText();
1519
1520                 $result = '';
1521                 if( wfMerge( $baseText, $editText, $currentText, $result ) ){
1522                         $editText = $result;
1523                         wfProfileOut( $fname );
1524                         return true;
1525                 } else {
1526                         wfProfileOut( $fname );
1527                         return false;
1528                 }
1529         }
1530
1531         /**
1532          * Check if the browser is on a blacklist of user-agents known to
1533          * mangle UTF-8 data on form submission. Returns true if Unicode
1534          * should make it through, false if it's known to be a problem.
1535          * @return bool
1536          * @private
1537          */
1538         function checkUnicodeCompliantBrowser() {
1539                 global $wgBrowserBlackList;
1540                 if( empty( $_SERVER["HTTP_USER_AGENT"] ) ) {
1541                         // No User-Agent header sent? Trust it by default...
1542                         return true;
1543                 }
1544                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
1545                 foreach ( $wgBrowserBlackList as $browser ) {
1546                         if ( preg_match($browser, $currentbrowser) ) {
1547                                 return false;
1548                         }
1549                 }
1550                 return true;
1551         }
1552
1553         /**
1554          * Format an anchor fragment as it would appear for a given section name
1555          * @param string $text
1556          * @return string
1557          * @private
1558          */
1559         function sectionAnchor( $text ) {
1560                 $headline = Sanitizer::decodeCharReferences( $text );
1561                 # strip out HTML
1562                 $headline = preg_replace( '/<.*?' . '>/', '', $headline );
1563                 $headline = trim( $headline );
1564                 $sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
1565                 $replacearray = array(
1566                         '%3A' => ':',
1567                         '%' => '.'
1568                 );
1569                 return str_replace(
1570                         array_keys( $replacearray ),
1571                         array_values( $replacearray ),
1572                         $sectionanchor );
1573         }
1574
1575         /**
1576          * Shows a bulletin board style toolbar for common editing functions.
1577          * It can be disabled in the user preferences.
1578          * The necessary JavaScript code can be found in style/wikibits.js.
1579          */
1580         function getEditToolbar() {
1581                 global $wgStylePath, $wgContLang, $wgJsMimeType;
1582
1583                 /**
1584                  * toolarray an array of arrays which each include the filename of
1585                  * the button image (without path), the opening tag, the closing tag,
1586                  * and optionally a sample text that is inserted between the two when no
1587                  * selection is highlighted.
1588                  * The tip text is shown when the user moves the mouse over the button.
1589                  *
1590                  * Already here are accesskeys (key), which are not used yet until someone
1591                  * can figure out a way to make them work in IE. However, we should make
1592                  * sure these keys are not defined on the edit page.
1593                  */
1594                 $toolarray = array(
1595                         array(  'image' => 'button_bold.png',
1596                                 'id'    => 'mw-editbutton-bold',
1597                                 'open'  => '\\\'\\\'\\\'',
1598                                 'close' => '\\\'\\\'\\\'',
1599                                 'sample'=> wfMsg('bold_sample'),
1600                                 'tip'   => wfMsg('bold_tip'),
1601                                 'key'   => 'B'
1602                         ),
1603                         array(  'image' => 'button_italic.png',
1604                                 'id'    => 'mw-editbutton-italic',
1605                                 'open'  => '\\\'\\\'',
1606                                 'close' => '\\\'\\\'',
1607                                 'sample'=> wfMsg('italic_sample'),
1608                                 'tip'   => wfMsg('italic_tip'),
1609                                 'key'   => 'I'
1610                         ),
1611                         array(  'image' => 'button_link.png',
1612                                 'id'    => 'mw-editbutton-link',
1613                                 'open'  => '[[',
1614                                 'close' => ']]',
1615                                 'sample'=> wfMsg('link_sample'),
1616                                 'tip'   => wfMsg('link_tip'),
1617                                 'key'   => 'L'
1618                         ),
1619                         array(  'image' => 'button_extlink.png',
1620                                 'id'    => 'mw-editbutton-extlink',
1621                                 'open'  => '[',
1622                                 'close' => ']',
1623                                 'sample'=> wfMsg('extlink_sample'),
1624                                 'tip'   => wfMsg('extlink_tip'),
1625                                 'key'   => 'X'
1626                         ),
1627                         array(  'image' => 'button_headline.png',
1628                                 'id'    => 'mw-editbutton-headline',
1629                                 'open'  => "\\n== ",
1630                                 'close' => " ==\\n",
1631                                 'sample'=> wfMsg('headline_sample'),
1632                                 'tip'   => wfMsg('headline_tip'),
1633                                 'key'   => 'H'
1634                         ),
1635                         array(  'image' => 'button_image.png',
1636                                 'id'    => 'mw-editbutton-image',
1637                                 'open'  => '[['.$wgContLang->getNsText(NS_IMAGE).":",
1638                                 'close' => ']]',
1639                                 'sample'=> wfMsg('image_sample'),
1640                                 'tip'   => wfMsg('image_tip'),
1641                                 'key'   => 'D'
1642                         ),
1643                         array(  'image' => 'button_media.png',
1644                                 'id'    => 'mw-editbutton-media',
1645                                 'open'  => '[['.$wgContLang->getNsText(NS_MEDIA).':',
1646                                 'close' => ']]',
1647                                 'sample'=> wfMsg('media_sample'),
1648                                 'tip'   => wfMsg('media_tip'),
1649                                 'key'   => 'M'
1650                         ),
1651                         array(  'image' => 'button_math.png',
1652                                 'id'    => 'mw-editbutton-math',
1653                                 'open'  => "<math>",
1654                                 'close' => "<\\/math>",
1655                                 'sample'=> wfMsg('math_sample'),
1656                                 'tip'   => wfMsg('math_tip'),
1657                                 'key'   => 'C'
1658                         ),
1659                         array(  'image' => 'button_nowiki.png',
1660                                 'id'    => 'mw-editbutton-nowiki',
1661                                 'open'  => "<nowiki>",
1662                                 'close' => "<\\/nowiki>",
1663                                 'sample'=> wfMsg('nowiki_sample'),
1664                                 'tip'   => wfMsg('nowiki_tip'),
1665                                 'key'   => 'N'
1666                         ),
1667                         array(  'image' => 'button_sig.png',
1668                                 'id'    => 'mw-editbutton-signature',
1669                                 'open'  => '--~~~~',
1670                                 'close' => '',
1671                                 'sample'=> '',
1672                                 'tip'   => wfMsg('sig_tip'),
1673                                 'key'   => 'Y'
1674                         ),
1675                         array(  'image' => 'button_hr.png',
1676                                 'id'    => 'mw-editbutton-hr',
1677                                 'open'  => "\\n----\\n",
1678                                 'close' => '',
1679                                 'sample'=> '',
1680                                 'tip'   => wfMsg('hr_tip'),
1681                                 'key'   => 'R'
1682                         )
1683                 );
1684                 $toolbar = "<div id='toolbar'>\n";
1685                 $toolbar.="<script type='$wgJsMimeType'>\n/*<![CDATA[*/\n";
1686
1687                 foreach($toolarray as $tool) {
1688
1689                         $cssId = $tool['id'];
1690                         $image=$wgStylePath.'/common/images/'.$tool['image'];
1691                         $open=$tool['open'];
1692                         $close=$tool['close'];
1693                         $sample = wfEscapeJsString( $tool['sample'] );
1694
1695                         // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
1696                         // Older browsers show a "speedtip" type message only for ALT.
1697                         // Ideally these should be different, realistically they
1698                         // probably don't need to be.
1699                         $tip = wfEscapeJsString( $tool['tip'] );
1700
1701                         #$key = $tool["key"];
1702
1703                         $toolbar.="addButton('$image','$tip','$open','$close','$sample','$cssId');\n";
1704                 }
1705
1706                 $toolbar.="/*]]>*/\n</script>";
1707                 $toolbar.="\n</div>";
1708                 return $toolbar;
1709         }
1710
1711         /**
1712          * Returns an array of html code of the following checkboxes:
1713          * minor and watch
1714          *
1715          * @param $tabindex Current tabindex
1716          * @param $skin Skin object
1717          * @param $checked Array of checkbox => bool, where bool indicates the checked
1718          *                 status of the checkbox
1719          *
1720          * @return array
1721          */
1722         public static function getCheckboxes( &$tabindex, $skin, $checked ) {
1723                 global $wgUser;
1724
1725                 $checkboxes = array();
1726
1727                 $checkboxes['minor'] = '';
1728                 $minorLabel = wfMsgExt('minoredit', array('parseinline'));
1729                 if ( $wgUser->isAllowed('minoredit') ) {
1730                         $attribs = array(
1731                                 'tabindex'  => ++$tabindex,
1732                                 'accesskey' => wfMsg( 'accesskey-minoredit' ),
1733                                 'id'        => 'wpMinoredit',
1734                         );
1735                         $checkboxes['minor'] =
1736                                 Xml::check( 'wpMinoredit', $checked['minor'], $attribs ) .
1737                                 "&nbsp;<label for='wpMinoredit'".$skin->tooltipAndAccesskey('minoredit').">{$minorLabel}</label>";
1738                 }
1739
1740                 $watchLabel = wfMsgExt('watchthis', array('parseinline'));
1741                 $checkboxes['watch'] = '';
1742                 if ( $wgUser->isLoggedIn() ) {
1743                         $attribs = array(
1744                                 'tabindex'  => ++$tabindex,
1745                                 'accesskey' => wfMsg( 'accesskey-watch' ),
1746                                 'id'        => 'wpWatchthis',
1747                         );
1748                         $checkboxes['watch'] =
1749                                 Xml::check( 'wpWatchthis', $checked['watch'], $attribs ) .
1750                                 "&nbsp;<label for='wpWatchthis'".$skin->tooltipAndAccesskey('watch').">{$watchLabel}</label>";
1751                 }
1752                 return $checkboxes;
1753         }
1754
1755         /**
1756          * Returns an array of html code of the following buttons:
1757          * save, diff, preview and live
1758          *
1759          * @param $tabindex Current tabindex
1760          *
1761          * @return array
1762          */
1763         public function getEditButtons(&$tabindex) {
1764                 global $wgLivePreview, $wgUser;
1765
1766                 $buttons = array();
1767
1768                 $temp = array(
1769                         'id'        => 'wpSave',
1770                         'name'      => 'wpSave',
1771                         'type'      => 'submit',
1772                         'tabindex'  => ++$tabindex,
1773                         'value'     => wfMsg('savearticle'),
1774                         'accesskey' => wfMsg('accesskey-save'),
1775                         'title'     => wfMsg( 'tooltip-save' ).' ['.wfMsg( 'accesskey-save' ).']',
1776                 );
1777                 $buttons['save'] = wfElement('input', $temp, '');
1778
1779                 ++$tabindex; // use the same for preview and live preview
1780                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
1781                         $temp = array(
1782                                 'id'        => 'wpPreview',
1783                                 'name'      => 'wpPreview',
1784                                 'type'      => 'submit',
1785                                 'tabindex'  => $tabindex,
1786                                 'value'     => wfMsg('showpreview'),
1787                                 'accesskey' => '',
1788                                 'title'     => wfMsg( 'tooltip-preview' ).' ['.wfMsg( 'accesskey-preview' ).']',
1789                                 'style'     => 'display: none;',
1790                         );
1791                         $buttons['preview'] = wfElement('input', $temp, '');
1792
1793                         $temp = array(
1794                                 'id'        => 'wpLivePreview',
1795                                 'name'      => 'wpLivePreview',
1796                                 'type'      => 'submit',
1797                                 'tabindex'  => $tabindex,
1798                                 'value'     => wfMsg('showlivepreview'),
1799                                 'accesskey' => wfMsg('accesskey-preview'),
1800                                 'title'     => '',
1801                                 'onclick'   => $this->doLivePreviewScript(),
1802                         );
1803                         $buttons['live'] = wfElement('input', $temp, '');
1804                 } else {
1805                         $temp = array(
1806                                 'id'        => 'wpPreview',
1807                                 'name'      => 'wpPreview',
1808                                 'type'      => 'submit',
1809                                 'tabindex'  => $tabindex,
1810                                 'value'     => wfMsg('showpreview'),
1811                                 'accesskey' => wfMsg('accesskey-preview'),
1812                                 'title'     => wfMsg( 'tooltip-preview' ).' ['.wfMsg( 'accesskey-preview' ).']',
1813                         );
1814                         $buttons['preview'] = wfElement('input', $temp, '');
1815                         $buttons['live'] = '';
1816                 }
1817
1818                 $temp = array(
1819                         'id'        => 'wpDiff',
1820                         'name'      => 'wpDiff',
1821                         'type'      => 'submit',
1822                         'tabindex'  => ++$tabindex,
1823                         'value'     => wfMsg('showdiff'),
1824                         'accesskey' => wfMsg('accesskey-diff'),
1825                         'title'     => wfMsg( 'tooltip-diff' ).' ['.wfMsg( 'accesskey-diff' ).']',
1826                 );
1827                 $buttons['diff'] = wfElement('input', $temp, '');
1828
1829                 return $buttons;
1830         }
1831
1832         /**
1833          * Output preview text only. This can be sucked into the edit page
1834          * via JavaScript, and saves the server time rendering the skin as
1835          * well as theoretically being more robust on the client (doesn't
1836          * disturb the edit box's undo history, won't eat your text on
1837          * failure, etc).
1838          *
1839          * @todo This doesn't include category or interlanguage links.
1840          *       Would need to enhance it a bit, <s>maybe wrap them in XML
1841          *       or something...</s> that might also require more skin
1842          *       initialization, so check whether that's a problem.
1843          */
1844         function livePreview() {
1845                 global $wgOut;
1846                 $wgOut->disable();
1847                 header( 'Content-type: text/xml; charset=utf-8' );
1848                 header( 'Cache-control: no-cache' );
1849
1850                 $s =
1851                 '<?xml version="1.0" encoding="UTF-8" ?>' . "\n" .
1852                 Xml::openElement( 'livepreview' ) .
1853                 Xml::element( 'preview', null, $this->getPreviewText() ) .
1854                 Xml::element( 'br', array( 'style' => 'clear: both;' ) ) .
1855                 Xml::closeElement( 'livepreview' );
1856                 echo $s;
1857         }
1858
1859
1860         /**
1861          * Get a diff between the current contents of the edit box and the
1862          * version of the page we're editing from.
1863          *
1864          * If this is a section edit, we'll replace the section as for final
1865          * save and then make a comparison.
1866          *
1867          * @return string HTML
1868          */
1869         function getDiff() {
1870                 $oldtext = $this->mArticle->fetchContent();
1871                 $newtext = $this->mArticle->replaceSection(
1872                         $this->section, $this->textbox1, $this->summary, $this->edittime );
1873                 $newtext = $this->mArticle->preSaveTransform( $newtext );
1874                 $oldtitle = wfMsgExt( 'currentrev', array('parseinline') );
1875                 $newtitle = wfMsgExt( 'yourtext', array('parseinline') );
1876                 if ( $oldtext !== false  || $newtext != '' ) {
1877                         $de = new DifferenceEngine( $this->mTitle );
1878                         $de->setText( $oldtext, $newtext );
1879                         $difftext = $de->getDiff( $oldtitle, $newtitle );
1880                 } else {
1881                         $difftext = '';
1882                 }
1883
1884                 return '<div id="wikiDiff">' . $difftext . '</div>';
1885         }
1886
1887         /**
1888          * Filter an input field through a Unicode de-armoring process if it
1889          * came from an old browser with known broken Unicode editing issues.
1890          *
1891          * @param WebRequest $request
1892          * @param string $field
1893          * @return string
1894          * @private
1895          */
1896         function safeUnicodeInput( $request, $field ) {
1897                 $text = rtrim( $request->getText( $field ) );
1898                 return $request->getBool( 'safemode' )
1899                         ? $this->unmakesafe( $text )
1900                         : $text;
1901         }
1902
1903         /**
1904          * Filter an output field through a Unicode armoring process if it is
1905          * going to an old browser with known broken Unicode editing issues.
1906          *
1907          * @param string $text
1908          * @return string
1909          * @private
1910          */
1911         function safeUnicodeOutput( $text ) {
1912                 global $wgContLang;
1913                 $codedText = $wgContLang->recodeForEdit( $text );
1914                 return $this->checkUnicodeCompliantBrowser()
1915                         ? $codedText
1916                         : $this->makesafe( $codedText );
1917         }
1918
1919         /**
1920          * A number of web browsers are known to corrupt non-ASCII characters
1921          * in a UTF-8 text editing environment. To protect against this,
1922          * detected browsers will be served an armored version of the text,
1923          * with non-ASCII chars converted to numeric HTML character references.
1924          *
1925          * Preexisting such character references will have a 0 added to them
1926          * to ensure that round-trips do not alter the original data.
1927          *
1928          * @param string $invalue
1929          * @return string
1930          * @private
1931          */
1932         function makesafe( $invalue ) {
1933                 // Armor existing references for reversability.
1934                 $invalue = strtr( $invalue, array( "&#x" => "&#x0" ) );
1935
1936                 $bytesleft = 0;
1937                 $result = "";
1938                 $working = 0;
1939                 for( $i = 0; $i < strlen( $invalue ); $i++ ) {
1940                         $bytevalue = ord( $invalue{$i} );
1941                         if( $bytevalue <= 0x7F ) { //0xxx xxxx
1942                                 $result .= chr( $bytevalue );
1943                                 $bytesleft = 0;
1944                         } elseif( $bytevalue <= 0xBF ) { //10xx xxxx
1945                                 $working = $working << 6;
1946                                 $working += ($bytevalue & 0x3F);
1947                                 $bytesleft--;
1948                                 if( $bytesleft <= 0 ) {
1949                                         $result .= "&#x" . strtoupper( dechex( $working ) ) . ";";
1950                                 }
1951                         } elseif( $bytevalue <= 0xDF ) { //110x xxxx
1952                                 $working = $bytevalue & 0x1F;
1953                                 $bytesleft = 1;
1954                         } elseif( $bytevalue <= 0xEF ) { //1110 xxxx
1955                                 $working = $bytevalue & 0x0F;
1956                                 $bytesleft = 2;
1957                         } else { //1111 0xxx
1958                                 $working = $bytevalue & 0x07;
1959                                 $bytesleft = 3;
1960                         }
1961                 }
1962                 return $result;
1963         }
1964
1965         /**
1966          * Reverse the previously applied transliteration of non-ASCII characters
1967          * back to UTF-8. Used to protect data from corruption by broken web browsers
1968          * as listed in $wgBrowserBlackList.
1969          *
1970          * @param string $invalue
1971          * @return string
1972          * @private
1973          */
1974         function unmakesafe( $invalue ) {
1975                 $result = "";
1976                 for( $i = 0; $i < strlen( $invalue ); $i++ ) {
1977                         if( ( substr( $invalue, $i, 3 ) == "&#x" ) && ( $invalue{$i+3} != '0' ) ) {
1978                                 $i += 3;
1979                                 $hexstring = "";
1980                                 do {
1981                                         $hexstring .= $invalue{$i};
1982                                         $i++;
1983                                 } while( ctype_xdigit( $invalue{$i} ) && ( $i < strlen( $invalue ) ) );
1984
1985                                 // Do some sanity checks. These aren't needed for reversability,
1986                                 // but should help keep the breakage down if the editor
1987                                 // breaks one of the entities whilst editing.
1988                                 if ((substr($invalue,$i,1)==";") and (strlen($hexstring) <= 6)) {
1989                                         $codepoint = hexdec($hexstring);
1990                                         $result .= codepointToUtf8( $codepoint );
1991                                 } else {
1992                                         $result .= "&#x" . $hexstring . substr( $invalue, $i, 1 );
1993                                 }
1994                         } else {
1995                                 $result .= substr( $invalue, $i, 1 );
1996                         }
1997                 }
1998                 // reverse the transform that we made for reversability reasons.
1999                 return strtr( $result, array( "&#x0" => "&#x" ) );
2000         }
2001
2002         function noCreatePermission() {
2003                 global $wgOut;
2004                 $wgOut->setPageTitle( wfMsg( 'nocreatetitle' ) );
2005                 $wgOut->addWikiText( wfMsg( 'nocreatetext' ) );
2006         }
2007
2008 }
2009
2010 ?>