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