includes/EditPage.php

   1 <?php
   2 /**
   3  * Contain the EditPage class
   4  */
   5
   6 /**
   7  * Splitting edit page/HTML interface from Article...
   8  * The actual database and text munging is still in Article,
   9  * but it should get easier to call those from alternate
  10  * interfaces.
  11  *
  12  */
  13
  14 class EditPage {
  15         var $mArticle;
  16         var $mTitle;
  17         var $mMetaData = '';
  18         var $isConflict = false;
  19         var $isCssJsSubpage = false;
  20         var $deletedSinceEdit = false;
  21         var $formtype;
  22         var $firsttime;
  23         var $lastDelete;
  24         var $mTokenOk = false;
  25         var $mTriedSave = false;
  26         var $tooBig = false;
  27         var $kblength = false;
  28         var $missingComment = false;
  29         var $missingSummary = false;
  30         var $allowBlankSummary = false;
  31         var $autoSumm = '';
  32         var $hookError = '';
  33         var $mPreviewTemplates;
  34
  35         # Form values
  36         var $save = false, $preview = false, $diff = false;
  37         var $minoredit = false, $watchthis = false, $recreate = false;
  38         var $textbox1 = '', $textbox2 = '', $summary = '';
  39         var $edittime = '', $section = '', $starttime = '';
  40         var $oldid = 0, $editintro = '', $scrolltop = null;
  41
  42         # Placeholders for text injection by hooks (must be HTML)
  43         # extensions should take care to _append_ to the present value
  44         public $editFormPageTop; // Before even the preview
  45         public $editFormTextTop;
  46         public $editFormTextAfterWarn;
  47         public $editFormTextAfterTools;
  48         public $editFormTextBottom;
  49
  50         /**
  51          * @todo document
  52          * @param $article
  53          */
  54         function EditPage( $article ) {
  55                 $this->mArticle =& $article;
  56                 global $wgTitle;
  57                 $this->mTitle =& $wgTitle;
  58
  59                 # Placeholders for text injection by hooks (empty per default)
  60                 $this->editFormPageTop =
  61                 $this->editFormTextTop =
  62                 $this->editFormTextAfterWarn =
  63                 $this->editFormTextAfterTools =
  64                 $this->editFormTextBottom = "";
  65         }
  66
  67         /**
  68          * Fetch initial editing page content.
  69          */
  70         private function getContent( $def_text = '' ) {
  71                 global $wgOut, $wgRequest, $wgParser;
  72
  73                 # Get variables from query string :P
  74                 $section = $wgRequest->getVal( 'section' );
  75                 $preload = $wgRequest->getVal( 'preload' );
  76                 $undoafter = $wgRequest->getVal( 'undoafter' );
  77                 $undoto = $wgRequest->getVal( 'undoto' );
  78
  79                 wfProfileIn( __METHOD__ );
  80
  81                 $text = '';
  82                 if( !$this->mTitle->exists() ) {
  83                         if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
  84                                 # If this is a system message, get the default text.
  85                                 $text = wfMsgWeirdKey ( $this->mTitle->getText() ) ;
  86                         } else {
  87                                 # If requested, preload some text.
  88                                 $text = $this->getPreloadedText( $preload );
  89                         }
  90                         # We used to put MediaWiki:Newarticletext here if
  91                         # $text was empty at this point.
  92                         # This is now shown above the edit box instead.
  93                 } else {
  94                         // FIXME: may be better to use Revision class directly
  95                         // But don't mess with it just yet. Article knows how to
  96                         // fetch the page record from the high-priority server,
  97                         // which is needed to guarantee we don't pick up lagged
  98                         // information.
  99
 100                         $text = $this->mArticle->getContent();
 101
 102                         if ( $undoafter > 0 && $undoto > $undoafter ) {
 103                                 #Undoing a specific edit overrides section editing; section-editing
 104                                 # doesn't work with undoing.
 105                                 $undorev = Revision::newFromId($undoto);
 106                                 $oldrev = Revision::newFromId($undoafter);
 107
 108                                 #Sanity check, make sure it's the right page.
 109                                 # Otherwise, $text will be left as-is.
 110                                 if ( !is_null($undorev) && !is_null($oldrev) && $undorev->getPage()==$oldrev->getPage() && $undorev->getPage()==$this->mArticle->getID() ) {
 111                                         $undorev_text = $undorev->getText();
 112                     $oldrev_text = $oldrev->getText();
 113                     $currev_text = $text;
 114
 115                                         #No use doing a merge if it's just a straight revert.
 116                                         if ( $currev_text != $undorev_text ) {
 117                                                 $result = wfMerge($undorev_text, $oldrev_text, $currev_text, $text);
 118                                         } else {
 119                                                 $text = $oldrev_text;
 120                                                 $result = true;
 121                                         }
 122                                 } else {
 123                                         // Failed basic sanity checks.
 124                                         // Older revisions may have been removed since the link
 125                                         // was created, or we may simply have got bogus input.
 126                                         $result = false;
 127                                 }
 128
 129                                 if( $result ) {
 130                                         # Inform the user of our success and set an automatic edit summary
 131                                         $this->editFormPageTop .= $wgOut->parse( wfMsgNoTrans( 'undo-success' ) );
 132                                         $firstrev = $oldrev->getNext();
 133                                         # If we just undid one rev, use an autosummary
 134                                         if ( $firstrev->mId == $undoto ) {
 135                                                         $this->summary = wfMsgForContent('undo-summary', $undoto, $undorev->getUserText());
 136                                         }
 137                                         $this->formtype = 'diff';
 138                                 } else {
 139                                         # Warn the user that something went wrong
 140                                         $this->editFormPageTop .= $wgOut->parse( wfMsgNoTrans( 'undo-failure' ) );
 141                                 }
 142                         } else if( $section != '' ) {
 143                                 if( $section == 'new' ) {
 144                                         $text = $this->getPreloadedText( $preload );
 145                                 } else {
 146                                         $text = $wgParser->getSection( $text, $section, $def_text );
 147                                 }
 148                         }
 149                 }
 150
 151                 wfProfileOut( __METHOD__ );
 152                 return $text;
 153         }
 154
 155         /**
 156          * Get the contents of a page from its title and remove includeonly tags
 157          *
 158          * @param $preload String: the title of the page.
 159          * @return string The contents of the page.
 160          */
 161         private function getPreloadedText($preload) {
 162                 if ( $preload === '' )
 163                         return '';
 164                 else {
 165                         $preloadTitle = Title::newFromText( $preload );
 166                         if ( isset( $preloadTitle ) && $preloadTitle->userCanRead() ) {
 167                                 $rev=Revision::newFromTitle($preloadTitle);
 168                                 if ( is_object( $rev ) ) {
 169                                         $text = $rev->getText();
 170                                         // TODO FIXME: AAAAAAAAAAA, this shouldn't be implementing
 171                                         // its own mini-parser! -ævar
 172                                         $text = preg_replace( '~</?includeonly>~', '', $text );
 173                                         return $text;
 174                                 } else
 175                                         return '';
 176                         }
 177                 }
 178         }
 179
 180         /**
 181          * This is the function that extracts metadata from the article body on the first view.
 182          * To turn the feature on, set $wgUseMetadataEdit = true ; in LocalSettings
 183          *  and set $wgMetadataWhitelist to the *full* title of the template whitelist
 184          */
 185         function extractMetaDataFromArticle () {
 186                 global $wgUseMetadataEdit , $wgMetadataWhitelist , $wgLang ;
 187                 $this->mMetaData = '' ;
 188                 if ( !$wgUseMetadataEdit ) return ;
 189                 if ( $wgMetadataWhitelist == '' ) return ;
 190                 $s = '' ;
 191                 $t = $this->getContent();
 192
 193                 # MISSING : <nowiki> filtering
 194
 195                 # Categories and language links
 196                 $t = explode ( "\n" , $t ) ;
 197                 $catlow = strtolower ( $wgLang->getNsText ( NS_CATEGORY ) ) ;
 198                 $cat = $ll = array() ;
 199                 foreach ( $t AS $key => $x )
 200                 {
 201                         $y = trim ( strtolower ( $x ) ) ;
 202                         while ( substr ( $y , 0 , 2 ) == '[[' )
 203                         {
 204                                 $y = explode ( ']]' , trim ( $x ) ) ;
 205                                 $first = array_shift ( $y ) ;
 206                                 $first = explode ( ':' , $first ) ;
 207                                 $ns = array_shift ( $first ) ;
 208                                 $ns = trim ( str_replace ( '[' , '' , $ns ) ) ;
 209                                 if ( strlen ( $ns ) == 2 OR strtolower ( $ns ) == $catlow )
 210                                 {
 211                                         $add = '[[' . $ns . ':' . implode ( ':' , $first ) . ']]' ;
 212                                         if ( strtolower ( $ns ) == $catlow ) $cat[] = $add ;
 213                                         else $ll[] = $add ;
 214                                         $x = implode ( ']]' , $y ) ;
 215                                         $t[$key] = $x ;
 216                                         $y = trim ( strtolower ( $x ) ) ;
 217                                 }
 218                         }
 219                 }
 220                 if ( count ( $cat ) ) $s .= implode ( ' ' , $cat ) . "\n" ;
 221                 if ( count ( $ll ) ) $s .= implode ( ' ' , $ll ) . "\n" ;
 222                 $t = implode ( "\n" , $t ) ;
 223
 224                 # Load whitelist
 225                 $sat = array () ; # stand-alone-templates; must be lowercase
 226                 $wl_title = Title::newFromText ( $wgMetadataWhitelist ) ;
 227                 $wl_article = new Article ( $wl_title ) ;
 228                 $wl = explode ( "\n" , $wl_article->getContent() ) ;
 229                 foreach ( $wl AS $x )
 230                 {
 231                         $isentry = false ;
 232                         $x = trim ( $x ) ;
 233                         while ( substr ( $x , 0 , 1 ) == '*' )
 234                         {
 235                                 $isentry = true ;
 236                                 $x = trim ( substr ( $x , 1 ) ) ;
 237                         }
 238                         if ( $isentry )
 239                         {
 240                                 $sat[] = strtolower ( $x ) ;
 241                         }
 242
 243                 }
 244
 245                 # Templates, but only some
 246                 $t = explode ( '{{' , $t ) ;
 247                 $tl = array () ;
 248                 foreach ( $t AS $key => $x )
 249                 {
 250                         $y = explode ( '}}' , $x , 2 ) ;
 251                         if ( count ( $y ) == 2 )
 252                         {
 253                                 $z = $y[0] ;
 254                                 $z = explode ( '|' , $z ) ;
 255                                 $tn = array_shift ( $z ) ;
 256                                 if ( in_array ( strtolower ( $tn ) , $sat ) )
 257                                 {
 258                                         $tl[] = '{{' . $y[0] . '}}' ;
 259                                         $t[$key] = $y[1] ;
 260                                         $y = explode ( '}}' , $y[1] , 2 ) ;
 261                                 }
 262                                 else $t[$key] = '{{' . $x ;
 263                         }
 264                         else if ( $key != 0 ) $t[$key] = '{{' . $x ;
 265                         else $t[$key] = $x ;
 266                 }
 267                 if ( count ( $tl ) ) $s .= implode ( ' ' , $tl ) ;
 268                 $t = implode ( '' , $t ) ;
 269
 270                 $t = str_replace ( "\n\n\n" , "\n" , $t ) ;
 271                 $this->mArticle->mContent = $t ;
 272                 $this->mMetaData = $s ;
 273         }
 274
 275         function submit() {
 276                 $this->edit();
 277         }
 278
 279         /**
 280          * This is the function that gets called for "action=edit". It
 281          * sets up various member variables, then passes execution to
 282          * another function, usually showEditForm()
 283          *
 284          * The edit form is self-submitting, so that when things like
 285          * preview and edit conflicts occur, we get the same form back
 286          * with the extra stuff added.  Only when the final submission
 287          * is made and all is well do we actually save and redirect to
 288          * the newly-edited page.
 289          */
 290         function edit() {
 291                 global $wgOut, $wgUser, $wgRequest, $wgTitle;
 292                 global $wgEmailConfirmToEdit;
 293
 294                 if ( ! wfRunHooks( 'AlternateEdit', array( &$this  ) ) )
 295                         return;
 296
 297                 $fname = 'EditPage::edit';
 298                 wfProfileIn( $fname );
 299                 wfDebug( "$fname: enter\n" );
 300
 301                 // this is not an article
 302                 $wgOut->setArticleFlag(false);
 303
 304                 $this->importFormData( $wgRequest );
 305                 $this->firsttime = false;
 306
 307                 if( $this->live ) {
 308                         $this->livePreview();
 309                         wfProfileOut( $fname );
 310                         return;
 311                 }
 312
 313                 if ( ! $this->mTitle->userCan( 'edit' ) ) {
 314                         wfDebug( "$fname: user can't edit\n" );
 315                         $wgOut->readOnlyPage( $this->getContent(), true );
 316                         wfProfileOut( $fname );
 317                         return;
 318                 }
 319                 wfDebug( "$fname: Checking blocks\n" );
 320                 if ( !$this->preview && !$this->diff && $wgUser->isBlockedFrom( $this->mTitle, !$this->save ) ) {
 321                         # When previewing, don't check blocked state - will get caught at save time.
 322                         # Also, check when starting edition is done against slave to improve performance.
 323                         wfDebug( "$fname: user is blocked\n" );
 324                         $this->blockedPage();
 325                         wfProfileOut( $fname );
 326                         return;
 327                 }
 328                 if ( !$wgUser->isAllowed('edit') ) {
 329                         if ( $wgUser->isAnon() ) {
 330                                 wfDebug( "$fname: user must log in\n" );
 331                                 $this->userNotLoggedInPage();
 332                                 wfProfileOut( $fname );
 333                                 return;
 334                         } else {
 335                                 wfDebug( "$fname: read-only page\n" );
 336                                 $wgOut->readOnlyPage( $this->getContent(), true );
 337                                 wfProfileOut( $fname );
 338                                 return;
 339                         }
 340                 }
 341                 if ($wgEmailConfirmToEdit && !$wgUser->isEmailConfirmed()) {
 342                         wfDebug("$fname: user must confirm e-mail address\n");
 343                         $this->userNotConfirmedPage();
 344                         wfProfileOut($fname);
 345                         return;
 346                 }
 347                 if ( !$this->mTitle->userCan( 'create' ) && !$this->mTitle->exists() ) {
 348                         wfDebug( "$fname: no create permission\n" );
 349                         $this->noCreatePermission();
 350                         wfProfileOut( $fname );
 351                         return;
 352                 }
 353                 if ( wfReadOnly() ) {
 354                         wfDebug( "$fname: read-only mode is engaged\n" );
 355                         if( $this->save || $this->preview ) {
 356                                 $this->formtype = 'preview';
 357                         } else if ( $this->diff ) {
 358                                 $this->formtype = 'diff';
 359                         } else {
 360                                 $wgOut->readOnlyPage( $this->getContent() );
 361                                 wfProfileOut( $fname );
 362                                 return;
 363                         }
 364                 } else {
 365                         if ( $this->save ) {
 366                                 $this->formtype = 'save';
 367                         } else if ( $this->preview ) {
 368                                 $this->formtype = 'preview';
 369                         } else if ( $this->diff ) {
 370                                 $this->formtype = 'diff';
 371                         } else { # First time through
 372                                 $this->firsttime = true;
 373                                 if( $this->previewOnOpen() ) {
 374                                         $this->formtype = 'preview';
 375                                 } else {
 376                                         $this->extractMetaDataFromArticle () ;
 377                                         $this->formtype = 'initial';
 378                                 }
 379                         }
 380                 }
 381
 382                 wfProfileIn( "$fname-business-end" );
 383
 384                 $this->isConflict = false;
 385                 // css / js subpages of user pages get a special treatment
 386                 $this->isCssJsSubpage      = $wgTitle->isCssJsSubpage();
 387                 $this->isValidCssJsSubpage = $wgTitle->isValidCssJsSubpage();
 388
 389                 /* Notice that we can't use isDeleted, because it returns true if article is ever deleted
 390                  * no matter it's current state
 391                  */
 392                 $this->deletedSinceEdit = false;
 393                 if ( $this->edittime != '' ) {
 394                         /* Note that we rely on logging table, which hasn't been always there,
 395                          * but that doesn't matter, because this only applies to brand new
 396                          * deletes. This is done on every preview and save request. Move it further down
 397                          * to only perform it on saves
 398                          */
 399                         if ( $this->mTitle->isDeleted() ) {
 400                                 $this->lastDelete = $this->getLastDelete();
 401                                 if ( !is_null($this->lastDelete) ) {
 402                                         $deletetime = $this->lastDelete->log_timestamp;
 403                                         if ( ($deletetime - $this->starttime) > 0 ) {
 404                                                 $this->deletedSinceEdit = true;
 405                                         }
 406                                 }
 407                         }
 408                 }
 409
 410                 if(!$this->mTitle->getArticleID() && ('initial' == $this->formtype || $this->firsttime )) { # new article
 411                         $this->showIntro();
 412                 }
 413                 if( $this->mTitle->isTalkPage() ) {
 414                         $wgOut->addWikiText( wfMsg( 'talkpagetext' ) );
 415                 }
 416
 417                 # Attempt submission here.  This will check for edit conflicts,
 418                 # and redundantly check for locked database, blocked IPs, etc.
 419                 # that edit() already checked just in case someone tries to sneak
 420                 # in the back door with a hand-edited submission URL.
 421
 422                 if ( 'save' == $this->formtype ) {
 423                         if ( !$this->attemptSave() ) {
 424                                 wfProfileOut( "$fname-business-end" );
 425                                 wfProfileOut( $fname );
 426                                 return;
 427                         }
 428                 }
 429
 430                 # First time through: get contents, set time for conflict
 431                 # checking, etc.
 432                 if ( 'initial' == $this->formtype || $this->firsttime ) {
 433                         if ($this->initialiseForm() === false) {
 434                                 $this->noSuchSectionPage();
 435                                 wfProfileOut( "$fname-business-end" );
 436                                 wfProfileOut( $fname );
 437                                 return;
 438                         }
 439                         if( !$this->mTitle->getArticleId() )
 440                                 wfRunHooks( 'EditFormPreloadText', array( &$this->textbox1, &$this->mTitle ) );
 441                 }
 442
 443                 $this->showEditForm();
 444                 wfProfileOut( "$fname-business-end" );
 445                 wfProfileOut( $fname );
 446         }
 447
 448         /**
 449          * Return true if this page should be previewed when the edit form
 450          * is initially opened.
 451          * @return bool
 452          * @private
 453          */
 454         function previewOnOpen() {
 455                 global $wgUser;
 456                 return $this->section != 'new' &&
 457                         ( ( $wgUser->getOption( 'previewonfirst' ) && $this->mTitle->exists() ) ||
 458                                 ( $this->mTitle->getNamespace() == NS_CATEGORY &&
 459                                         !$this->mTitle->exists() ) );
 460         }
 461
 462         /**
 463          * @todo document
 464          * @param $request
 465          */
 466         function importFormData( &$request ) {
 467                 global $wgLang, $wgUser;
 468                 $fname = 'EditPage::importFormData';
 469                 wfProfileIn( $fname );
 470
 471                 if( $request->wasPosted() ) {
 472                         # These fields need to be checked for encoding.
 473                         # Also remove trailing whitespace, but don't remove _initial_
 474                         # whitespace from the text boxes. This may be significant formatting.
 475                         $this->textbox1 = $this->safeUnicodeInput( $request, 'wpTextbox1' );
 476                         $this->textbox2 = $this->safeUnicodeInput( $request, 'wpTextbox2' );
 477                         $this->mMetaData = rtrim( $request->getText( 'metadata'   ) );
 478                         # Truncate for whole multibyte characters. +5 bytes for ellipsis
 479                         $this->summary   = $wgLang->truncate( $request->getText( 'wpSummary'  ), 250 );
 480
 481                         $this->edittime = $request->getVal( 'wpEdittime' );
 482                         $this->starttime = $request->getVal( 'wpStarttime' );
 483
 484                         $this->scrolltop = $request->getIntOrNull( 'wpScrolltop' );
 485
 486                         if( is_null( $this->edittime ) ) {
 487                                 # If the form is incomplete, force to preview.
 488                                 wfDebug( "$fname: Form data appears to be incomplete\n" );
 489                                 wfDebug( "POST DATA: " . var_export( $_POST, true ) . "\n" );
 490                                 $this->preview  = true;
 491                         } else {
 492                                 /* Fallback for live preview */
 493                                 $this->preview = $request->getCheck( 'wpPreview' ) || $request->getCheck( 'wpLivePreview' );
 494                                 $this->diff = $request->getCheck( 'wpDiff' );
 495
 496                                 // Remember whether a save was requested, so we can indicate
 497                                 // if we forced preview due to session failure.
 498                                 $this->mTriedSave = !$this->preview;
 499
 500                                 if ( $this->tokenOk( $request ) ) {
 501                                         # Some browsers will not report any submit button
 502                                         # if the user hits enter in the comment box.
 503                                         # The unmarked state will be assumed to be a save,
 504                                         # if the form seems otherwise complete.
 505                                         wfDebug( "$fname: Passed token check.\n" );
 506                                 } else if ( $this->diff ) {
 507                                         # Failed token check, but only requested "Show Changes".
 508                                         wfDebug( "$fname: Failed token check; Show Changes requested.\n" );
 509                                 } else {
 510                                         # Page might be a hack attempt posted from
 511                                         # an external site. Preview instead of saving.
 512                                         wfDebug( "$fname: Failed token check; forcing preview\n" );
 513                                         $this->preview = true;
 514                                 }
 515                         }
 516                         $this->save    = ! ( $this->preview OR $this->diff );
 517                         if( !preg_match( '/^\d{14}$/', $this->edittime )) {
 518                                 $this->edittime = null;
 519                         }
 520
 521                         if( !preg_match( '/^\d{14}$/', $this->starttime )) {
 522                                 $this->starttime = null;
 523                         }
 524
 525                         $this->recreate  = $request->getCheck( 'wpRecreate' );
 526
 527                         $this->minoredit = $request->getCheck( 'wpMinoredit' );
 528                         $this->watchthis = $request->getCheck( 'wpWatchthis' );
 529
 530                         # Don't force edit summaries when a user is editing their own user or talk page
 531                         if( ( $this->mTitle->mNamespace == NS_USER || $this->mTitle->mNamespace == NS_USER_TALK ) && $this->mTitle->getText() == $wgUser->getName() ) {
 532                                 $this->allowBlankSummary = true;
 533                         } else {
 534                                 $this->allowBlankSummary = $request->getBool( 'wpIgnoreBlankSummary' );
 535                         }
 536
 537                         $this->autoSumm = $request->getText( 'wpAutoSummary' );
 538                 } else {
 539                         # Not a posted form? Start with nothing.
 540                         wfDebug( "$fname: Not a posted form.\n" );
 541                         $this->textbox1  = '';
 542                         $this->textbox2  = '';
 543                         $this->mMetaData = '';
 544                         $this->summary   = '';
 545                         $this->edittime  = '';
 546                         $this->starttime = wfTimestampNow();
 547                         $this->preview   = false;
 548                         $this->save      = false;
 549                         $this->diff      = false;
 550                         $this->minoredit = false;
 551                         $this->watchthis = false;
 552                         $this->recreate  = false;
 553                 }
 554
 555                 $this->oldid = $request->getInt( 'oldid' );
 556
 557                 # Section edit can come from either the form or a link
 558                 $this->section = $request->getVal( 'wpSection', $request->getVal( 'section' ) );
 559
 560                 $this->live = $request->getCheck( 'live' );
 561                 $this->editintro = $request->getText( 'editintro' );
 562
 563                 wfProfileOut( $fname );
 564         }
 565
 566         /**
 567          * Make sure the form isn't faking a user's credentials.
 568          *
 569          * @param $request WebRequest
 570          * @return bool
 571          * @private
 572          */
 573         function tokenOk( &$request ) {
 574                 global $wgUser;
 575                 if( $wgUser->isAnon() ) {
 576                         # Anonymous users may not have a session
 577                         # open. Check for suffix anyway.
 578                         $this->mTokenOk = ( EDIT_TOKEN_SUFFIX == $request->getVal( 'wpEditToken' ) );
 579                 } else {
 580                         $this->mTokenOk = $wgUser->matchEditToken( $request->getVal( 'wpEditToken' ) );
 581                 }
 582                 return $this->mTokenOk;
 583         }
 584
 585         /** */
 586         function showIntro() {
 587                 global $wgOut, $wgUser;
 588                 $addstandardintro=true;
 589                 if($this->editintro) {
 590                         $introtitle=Title::newFromText($this->editintro);
 591                         if(isset($introtitle) && $introtitle->userCanRead()) {
 592                                 $rev=Revision::newFromTitle($introtitle);
 593                                 if($rev) {
 594                                         $wgOut->addSecondaryWikiText($rev->getText());
 595                                         $addstandardintro=false;
 596                                 }
 597                         }
 598                 }
 599                 if($addstandardintro) {
 600                         if ( $wgUser->isLoggedIn() )
 601                                 $wgOut->addWikiText( wfMsg( 'newarticletext' ) );
 602                         else
 603                                 $wgOut->addWikiText( wfMsg( 'newarticletextanon' ) );
 604                 }
 605         }
 606
 607         /**
 608          * Attempt submission
 609          * @return bool false if output is done, true if the rest of the form should be displayed
 610          */
 611         function attemptSave() {
 612                 global $wgSpamRegex, $wgFilterCallback, $wgUser, $wgOut;
 613                 global $wgMaxArticleSize;
 614
 615                 $fname = 'EditPage::attemptSave';
 616                 wfProfileIn( $fname );
 617                 wfProfileIn( "$fname-checks" );
 618
 619                 if( !wfRunHooks( 'EditPage::attemptSave', array( &$this ) ) )
 620                 {
 621                         wfDebug( "Hook 'EditPage::attemptSave' aborted article saving" );
 622                         return false;
 623                 }
 624
 625                 # Reintegrate metadata
 626                 if ( $this->mMetaData != '' ) $this->textbox1 .= "\n" . $this->mMetaData ;
 627                 $this->mMetaData = '' ;
 628
 629                 # Check for spam
 630                 $matches = array();
 631                 if ( $wgSpamRegex && preg_match( $wgSpamRegex, $this->textbox1, $matches ) ) {
 632                         $this->spamPage ( $matches[0] );
 633                         wfProfileOut( "$fname-checks" );
 634                         wfProfileOut( $fname );
 635                         return false;
 636                 }
 637                 if ( $wgFilterCallback && $wgFilterCallback( $this->mTitle, $this->textbox1, $this->section ) ) {
 638                         # Error messages or other handling should be performed by the filter function
 639                         wfProfileOut( $fname );
 640                         wfProfileOut( "$fname-checks" );
 641                         return false;
 642                 }
 643                 if ( !wfRunHooks( 'EditFilter', array( $this, $this->textbox1, $this->section, &$this->hookError ) ) ) {
 644                         # Error messages etc. could be handled within the hook...
 645                         wfProfileOut( $fname );
 646                         wfProfileOut( "$fname-checks" );
 647                         return false;
 648                 } elseif( $this->hookError != '' ) {
 649                         # ...or the hook could be expecting us to produce an error
 650                         wfProfileOut( "$fname-checks " );
 651                         wfProfileOut( $fname );
 652                         return true;
 653                 }
 654                 if ( $wgUser->isBlockedFrom( $this->mTitle, false ) ) {
 655                         # Check block state against master, thus 'false'.
 656                         $this->blockedPage();
 657                         wfProfileOut( "$fname-checks" );
 658                         wfProfileOut( $fname );
 659                         return false;
 660                 }
 661                 $this->kblength = (int)(strlen( $this->textbox1 ) / 1024);
 662                 if ( $this->kblength > $wgMaxArticleSize ) {
 663                         // Error will be displayed by showEditForm()
 664                         $this->tooBig = true;
 665                         wfProfileOut( "$fname-checks" );
 666                         wfProfileOut( $fname );
 667                         return true;
 668                 }
 669
 670                 if ( !$wgUser->isAllowed('edit') ) {
 671                         if ( $wgUser->isAnon() ) {
 672                                 $this->userNotLoggedInPage();
 673                                 wfProfileOut( "$fname-checks" );
 674                                 wfProfileOut( $fname );
 675                                 return false;
 676                         }
 677                         else {
 678                                 $wgOut->readOnlyPage();
 679                                 wfProfileOut( "$fname-checks" );
 680                                 wfProfileOut( $fname );
 681                                 return false;
 682                         }
 683                 }
 684
 685                 if ( wfReadOnly() ) {
 686                         $wgOut->readOnlyPage();
 687                         wfProfileOut( "$fname-checks" );
 688                         wfProfileOut( $fname );
 689                         return false;
 690                 }
 691                 if ( $wgUser->pingLimiter() ) {
 692                         $wgOut->rateLimited();
 693                         wfProfileOut( "$fname-checks" );
 694                         wfProfileOut( $fname );
 695                         return false;
 696                 }
 697
 698                 # If the article has been deleted while editing, don't save it without
 699                 # confirmation
 700                 if ( $this->deletedSinceEdit && !$this->recreate ) {
 701                         wfProfileOut( "$fname-checks" );
 702                         wfProfileOut( $fname );
 703                         return true;
 704                 }
 705
 706                 wfProfileOut( "$fname-checks" );
 707
 708                 # If article is new, insert it.
 709                 $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
 710                 if ( 0 == $aid ) {
 711
 712                         // Late check for create permission, just in case *PARANOIA*
 713                         if ( !$this->mTitle->userCan( 'create' ) ) {
 714                                 wfDebug( "$fname: no create permission\n" );
 715                                 $this->noCreatePermission();
 716                                 wfProfileOut( $fname );
 717                                 return;
 718                         }
 719
 720                         # Don't save a new article if it's blank.
 721                         if ( ( '' == $this->textbox1 ) ) {
 722                                         $wgOut->redirect( $this->mTitle->getFullURL() );
 723                                         wfProfileOut( $fname );
 724                                         return false;
 725                         }
 726
 727                         $isComment=($this->section=='new');
 728                         $this->mArticle->insertNewArticle( $this->textbox1, $this->summary,
 729                                 $this->minoredit, $this->watchthis, false, $isComment);
 730
 731                         wfProfileOut( $fname );
 732                         return false;
 733                 }
 734
 735                 # Article exists. Check for edit conflict.
 736
 737                 $this->mArticle->clear(); # Force reload of dates, etc.
 738                 $this->mArticle->forUpdate( true ); # Lock the article
 739
 740                 wfDebug("timestamp: {$this->mArticle->getTimestamp()}, edittime: {$this->edittime}\n");
 741
 742                 if( $this->mArticle->getTimestamp() != $this->edittime ) {
 743                         $this->isConflict = true;
 744                         if( $this->section == 'new' ) {
 745                                 if( $this->mArticle->getUserText() == $wgUser->getName() &&
 746                                         $this->mArticle->getComment() == $this->summary ) {
 747                                         // Probably a duplicate submission of a new comment.
 748                                         // This can happen when squid resends a request after
 749                                         // a timeout but the first one actually went through.
 750                                         wfDebug( "EditPage::editForm duplicate new section submission; trigger edit conflict!\n" );
 751                                 } else {
 752                                         // New comment; suppress conflict.
 753                                         $this->isConflict = false;
 754                                         wfDebug( "EditPage::editForm conflict suppressed; new section\n" );
 755                                 }
 756                         }
 757                 }
 758                 $userid = $wgUser->getID();
 759
 760                 if ( $this->isConflict) {
 761                         wfDebug( "EditPage::editForm conflict! getting section '$this->section' for time '$this->edittime' (article time '" .
 762                                 $this->mArticle->getTimestamp() . "'\n" );
 763                         $text = $this->mArticle->replaceSection( $this->section, $this->textbox1, $this->summary, $this->edittime);
 764                 }
 765                 else {
 766                         wfDebug( "EditPage::editForm getting section '$this->section'\n" );
 767                         $text = $this->mArticle->replaceSection( $this->section, $this->textbox1, $this->summary);
 768                 }
 769                 if( is_null( $text ) ) {
 770                         wfDebug( "EditPage::editForm activating conflict; section replace failed.\n" );
 771                         $this->isConflict = true;
 772                         $text = $this->textbox1;
 773                 }
 774
 775                 # Suppress edit conflict with self, except for section edits where merging is required.
 776                 if ( ( $this->section == '' ) && ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
 777                         wfDebug( "Suppressing edit conflict, same user.\n" );
 778                         $this->isConflict = false;
 779                 } else {
 780                         # switch from section editing to normal editing in edit conflict
 781                         if($this->isConflict) {
 782                                 # Attempt merge
 783                                 if( $this->mergeChangesInto( $text ) ){
 784                                         // Successful merge! Maybe we should tell the user the good news?
 785                                         $this->isConflict = false;
 786                                         wfDebug( "Suppressing edit conflict, successful merge.\n" );
 787                                 } else {
 788                                         $this->section = '';
 789                                         $this->textbox1 = $text;
 790                                         wfDebug( "Keeping edit conflict, failed merge.\n" );
 791                                 }
 792                         }
 793                 }
 794
 795                 if ( $this->isConflict ) {
 796                         wfProfileOut( $fname );
 797                         return true;
 798                 }
 799
 800                 $oldtext = $this->mArticle->getContent();
 801
 802                 # Handle the user preference to force summaries here, but not for null edits
 803                 if( $this->section != 'new' && !$this->allowBlankSummary && $wgUser->getOption( 'forceeditsummary')
 804                         &&  0 != strcmp($oldtext, $text) && !Article::getRedirectAutosummary( $text )) {
 805                         if( md5( $this->summary ) == $this->autoSumm ) {
 806                                 $this->missingSummary = true;
 807                                 wfProfileOut( $fname );
 808                                 return( true );
 809                         }
 810                 }
 811
 812                 #And a similar thing for new sections
 813                 if( $this->section == 'new' && !$this->allowBlankSummary && $wgUser->getOption( 'forceeditsummary' ) ) {
 814                         if (trim($this->summary) == '') {
 815                                 $this->missingSummary = true;
 816                                 wfProfileOut( $fname );
 817                                 return( true );
 818                         }
 819                 }
 820
 821                 # All's well
 822                 wfProfileIn( "$fname-sectionanchor" );
 823                 $sectionanchor = '';
 824                 if( $this->section == 'new' ) {
 825                         if ( $this->textbox1 == '' ) {
 826                                 $this->missingComment = true;
 827                                 return true;
 828                         }
 829                         if( $this->summary != '' ) {
 830                                 $sectionanchor = $this->sectionAnchor( $this->summary );
 831                         }
 832                 } elseif( $this->section != '' ) {
 833                         # Try to get a section anchor from the section source, redirect to edited section if header found
 834                         # XXX: might be better to integrate this into Article::replaceSection
 835                         # for duplicate heading checking and maybe parsing
 836                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
 837                         # we can't deal with anchors, includes, html etc in the header for now,
 838                         # headline would need to be parsed to improve this
 839                         if($hasmatch and strlen($matches[2]) > 0) {
 840                                 $sectionanchor = $this->sectionAnchor( $matches[2] );
 841                         }
 842                 }
 843                 wfProfileOut( "$fname-sectionanchor" );
 844
 845                 // Save errors may fall down to the edit form, but we've now
 846                 // merged the section into full text. Clear the section field
 847                 // so that later submission of conflict forms won't try to
 848                 // replace that into a duplicated mess.
 849                 $this->textbox1 = $text;
 850                 $this->section = '';
 851
 852                 // Check for length errors again now that the section is merged in
 853                 $this->kblength = (int)(strlen( $text ) / 1024);
 854                 if ( $this->kblength > $wgMaxArticleSize ) {
 855                         $this->tooBig = true;
 856                         wfProfileOut( $fname );
 857                         return true;
 858                 }
 859
 860                 # update the article here
 861                 if( $this->mArticle->updateArticle( $text, $this->summary, $this->minoredit,
 862                         $this->watchthis, '', $sectionanchor ) ) {
 863                         wfProfileOut( $fname );
 864                         return false;
 865                 } else {
 866                         $this->isConflict = true;
 867                 }
 868                 wfProfileOut( $fname );
 869                 return true;
 870         }
 871
 872         /**
 873          * Initialise form fields in the object
 874          * Called on the first invocation, e.g. when a user clicks an edit link
 875          */
 876         function initialiseForm() {
 877                 $this->edittime = $this->mArticle->getTimestamp();
 878                 $this->summary = '';
 879                 $this->textbox1 = $this->getContent(false);
 880                 if ($this->textbox1 === false) return false;
 881
 882                 if ( !$this->mArticle->exists() && $this->mArticle->mTitle->getNamespace() == NS_MEDIAWIKI )
 883                         $this->textbox1 = wfMsgWeirdKey( $this->mArticle->mTitle->getText() );
 884                 wfProxyCheck();
 885                 return true;
 886         }
 887
 888         /**
 889          * Send the edit form and related headers to $wgOut
 890          * @param $formCallback Optional callable that takes an OutputPage
 891          *                      parameter; will be called during form output
 892          *                      near the top, for captchas and the like.
 893          */
 894         function showEditForm( $formCallback=null ) {
 895                 global $wgOut, $wgUser, $wgLang, $wgContLang, $wgMaxArticleSize;
 896
 897                 $fname = 'EditPage::showEditForm';
 898                 wfProfileIn( $fname );
 899
 900                 $sk = $wgUser->getSkin();
 901
 902                 wfRunHooks( 'EditPage::showEditForm:initial', array( &$this ) ) ;
 903
 904                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 905
 906                 # Enabled article-related sidebar, toplinks, etc.
 907                 $wgOut->setArticleRelated( true );
 908
 909                 if ( $this->isConflict ) {
 910                         $s = wfMsg( 'editconflict', $this->mTitle->getPrefixedText() );
 911                         $wgOut->setPageTitle( $s );
 912                         $wgOut->addWikiText( wfMsg( 'explainconflict' ) );
 913
 914                         $this->textbox2 = $this->textbox1;
 915                         $this->textbox1 = $this->getContent();
 916                         $this->edittime = $this->mArticle->getTimestamp();
 917                 } else {
 918
 919                         if( $this->section != '' ) {
 920                                 if( $this->section == 'new' ) {
 921                                         $s = wfMsg('editingcomment', $this->mTitle->getPrefixedText() );
 922                                 } else {
 923                                         $s = wfMsg('editingsection', $this->mTitle->getPrefixedText() );
 924                                         $matches = array();
 925                                         if( !$this->summary && !$this->preview && !$this->diff ) {
 926                                                 preg_match( "/^(=+)(.+)\\1/mi",
 927                                                         $this->textbox1,
 928                                                         $matches );
 929                                                 if( !empty( $matches[2] ) ) {
 930                                                         $this->summary = "/* ". trim($matches[2])." */ ";
 931                                                 }
 932                                         }
 933                                 }
 934                         } else {
 935                                 $s = wfMsg( 'editing', $this->mTitle->getPrefixedText() );
 936                         }
 937                         $wgOut->setPageTitle( $s );
 938
 939                         if ( $this->missingComment ) {
 940                                 $wgOut->addWikiText( wfMsg( 'missingcommenttext' ) );
 941                         }
 942
 943                         if( $this->missingSummary && $this->section != 'new' ) {
 944                                 $wgOut->addWikiText( wfMsg( 'missingsummary' ) );
 945                         }
 946
 947                         if( $this->missingSummary && $this->section == 'new' ) {
 948                                 $wgOut->addWikiText( wfMsg( 'missingcommentheader' ) );
 949                         }
 950
 951                         if( !$this->hookError == '' ) {
 952                                 $wgOut->addWikiText( $this->hookError );
 953                         }
 954
 955                         if ( !$this->checkUnicodeCompliantBrowser() ) {
 956                                 $wgOut->addWikiText( wfMsg( 'nonunicodebrowser') );
 957                         }
 958                         if ( isset( $this->mArticle ) && isset( $this->mArticle->mRevision ) ) {
 959                         // Let sysop know that this will make private content public if saved
 960                                 if( $this->mArticle->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
 961                                         $wgOut->addWikiText( wfMsg( 'rev-deleted-text-view' ) );
 962                                 }
 963                                 if( !$this->mArticle->mRevision->isCurrent() ) {
 964                                         $this->mArticle->setOldSubtitle( $this->mArticle->mRevision->getId() );
 965                                         $wgOut->addWikiText( wfMsg( 'editingold' ) );
 966                                 }
 967                         }
 968                 }
 969
 970                 if( wfReadOnly() ) {
 971                         $wgOut->addWikiText( wfMsg( 'readonlywarning' ) );
 972                 } elseif( $wgUser->isAnon() && $this->formtype != 'preview' ) {
 973                         $wgOut->addWikiText( wfMsg( 'anoneditwarning' ) );
 974                 } else {
 975                         if( $this->isCssJsSubpage && $this->formtype != 'preview' ) {
 976                                 # Check the skin exists
 977                                 if( $this->isValidCssJsSubpage ) {
 978                                         $wgOut->addWikiText( wfMsg( 'usercssjsyoucanpreview' ) );
 979                                 } else {
 980                                         $wgOut->addWikiText( wfMsg( 'userinvalidcssjstitle', $this->mTitle->getSkinFromCssJsSubpage() ) );
 981                                 }
 982                         }
 983                 }
 984
 985                 if( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
 986                         # Show a warning if editing an interface message
 987                         $wgOut->addWikiText( wfMsg( 'editinginterface' ) );
 988                 } elseif( $this->mTitle->isProtected( 'edit' ) ) {
 989                         # Is the title semi-protected?
 990                         if( $this->mTitle->isSemiProtected() ) {
 991                                 $notice = wfMsg( 'semiprotectedpagewarning' );
 992                                 if( wfEmptyMsg( 'semiprotectedpagewarning', $notice ) || $notice == '-' )
 993                                         $notice = '';
 994                         } else {
 995                                 # It's either cascading protection or regular protection; work out which
 996                                 list($cascadeSources, $restrictions) = $this->mTitle->getCascadeProtectionSources();
 997                                 if( $cascadeSources && count( $cascadeSources ) > 0 ) {
 998                                         # Cascading protection; explain, and list the titles responsible
 999                                         $notice = wfMsg( 'cascadeprotectedwarning' ) . "\n";
1000                                         foreach( $cascadeSources as $source )
1001                                                 $notice .= '* [[:' . $source->getPrefixedText() . "]]\n";
1002                                 } else {
1003                                         # Regular protection
1004                                         $notice = wfMsg( 'protectedpagewarning' );
1005                                 }
1006                         }
1007                         $wgOut->addWikiText( $notice );
1008                 }
1009
1010                 if ( $this->kblength === false ) {
1011                         $this->kblength = (int)(strlen( $this->textbox1 ) / 1024);
1012                 }
1013                 if ( $this->tooBig || $this->kblength > $wgMaxArticleSize ) {
1014                         $wgOut->addWikiText( wfMsg( 'longpageerror', $wgLang->formatNum( $this->kblength ), $wgMaxArticleSize ) );
1015                 } elseif( $this->kblength > 29 ) {
1016                         $wgOut->addWikiText( wfMsg( 'longpagewarning', $wgLang->formatNum( $this->kblength ) ) );
1017                 }
1018
1019                 #need to parse the preview early so that we know which templates are used,
1020                 #otherwise users with "show preview after edit box" will get a blank list
1021                 if ( $this->formtype == 'preview' ) {
1022                         $previewOutput = $this->getPreviewText();
1023                 }
1024
1025                 $rows = $wgUser->getIntOption( 'rows' );
1026                 $cols = $wgUser->getIntOption( 'cols' );
1027
1028                 $ew = $wgUser->getOption( 'editwidth' );
1029                 if ( $ew ) $ew = " style=\"width:100%\"";
1030                 else $ew = '';
1031
1032                 $q = 'action=submit';
1033                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
1034                 $action = $this->mTitle->escapeLocalURL( $q );
1035
1036                 $summary = wfMsg('summary');
1037                 $subject = wfMsg('subject');
1038
1039                 $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
1040                                 wfMsgExt('cancel', array('parseinline')) );
1041                 $edithelpurl = Skin::makeInternalOrExternalUrl( wfMsgForContent( 'edithelppage' ));
1042                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
1043                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
1044                         htmlspecialchars( wfMsg( 'newwindow' ) );
1045
1046                 global $wgRightsText;
1047                 $copywarn = "<div id=\"editpage-copywarn\">\n" .
1048                         wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
1049                                 '[[' . wfMsgForContent( 'copyrightpage' ) . ']]',
1050                                 $wgRightsText ) . "\n</div>";
1051
1052                 if( $wgUser->getOption('showtoolbar') and !$this->isCssJsSubpage ) {
1053                         # prepare toolbar for edit buttons
1054                         $toolbar = $this->getEditToolbar();
1055                 } else {
1056                         $toolbar = '';
1057                 }
1058
1059                 // activate checkboxes if user wants them to be always active
1060                 if( !$this->preview && !$this->diff ) {
1061                         # Sort out the "watch" checkbox
1062                         if( $wgUser->getOption( 'watchdefault' ) ) {
1063                                 # Watch all edits
1064                                 $this->watchthis = true;
1065                         } elseif( $wgUser->getOption( 'watchcreations' ) && !$this->mTitle->exists() ) {
1066                                 # Watch creations
1067                                 $this->watchthis = true;
1068                         } elseif( $this->mTitle->userIsWatching() ) {
1069                                 # Already watched
1070                                 $this->watchthis = true;
1071                         }
1072
1073                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
1074                 }
1075
1076                 $wgOut->addHTML( $this->editFormPageTop );
1077
1078                 if ( $wgUser->getOption( 'previewontop' ) ) {
1079
1080                         if ( 'preview' == $this->formtype ) {
1081                                 $this->showPreview( $previewOutput );
1082                         } else {
1083                                 $wgOut->addHTML( '<div id="wikiPreview"></div>' );
1084                         }
1085
1086                         if ( 'diff' == $this->formtype ) {
1087                                 $wgOut->addHTML( $this->getDiff() );
1088                         }
1089                 }
1090
1091
1092                 $wgOut->addHTML( $this->editFormTextTop );
1093
1094                 # if this is a comment, show a subject line at the top, which is also the edit summary.
1095                 # Otherwise, show a summary field at the bottom
1096                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
1097                 if( $this->section == 'new' ) {
1098                         $commentsubject="<span id='wpSummaryLabel'><label for='wpSummary'>{$subject}:</label></span>\n<div class='editOptions'>\n<input tabindex='1' type='text' value=\"$summarytext\" name='wpSummary' id='wpSummary' maxlength='200' size='60' /><br />";
1099                         $editsummary = '';
1100                         $subjectpreview = $summarytext && $this->preview ? "<div class=\"mw-summary-preview\">".wfMsg('subject-preview').':'.$sk->commentBlock( $this->summary, $this->mTitle )."</div>\n" : '';
1101                         $summarypreview = '';
1102                 } else {
1103                         $commentsubject = '';
1104                         $editsummary="<span id='wpSummaryLabel'><label for='wpSummary'>{$summary}:</label></span>\n<div class='editOptions'>\n<input tabindex='2' type='text' value=\"$summarytext\" name='wpSummary' id='wpSummary' maxlength='200' size='60' /><br />";
1105                         $summarypreview = $summarytext && $this->preview ? "<div class=\"mw-summary-preview\">".wfMsg('summary-preview').':'.$sk->commentBlock( $this->summary, $this->mTitle )."</div>\n" : '';
1106                         $subjectpreview = '';
1107                 }
1108
1109                 # Set focus to the edit box on load, except on preview or diff, where it would interfere with the display
1110                 if( !$this->preview && !$this->diff ) {
1111                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
1112                 }
1113                 $templates = ($this->preview || $this->section) ? $this->mPreviewTemplates : $this->mArticle->getUsedTemplates();
1114                 $formattedtemplates = $sk->formatTemplates( $templates, $this->preview, $this->section != '');
1115
1116                 global $wgUseMetadataEdit ;
1117                 if ( $wgUseMetadataEdit ) {
1118                         $metadata = $this->mMetaData ;
1119                         $metadata = htmlspecialchars( $wgContLang->recodeForEdit( $metadata ) ) ;
1120                         $top = wfMsgWikiHtml( 'metadata_help' );
1121                         $metadata = $top . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
1122                 }
1123                 else $metadata = "" ;
1124
1125                 $hidden = '';
1126                 $recreate = '';
1127                 if ($this->deletedSinceEdit) {
1128                         if ( 'save' != $this->formtype ) {
1129                                 $wgOut->addWikiText( wfMsg('deletedwhileediting'));
1130                         } else {
1131                                 // Hide the toolbar and edit area, use can click preview to get it back
1132                                 // Add an confirmation checkbox and explanation.
1133                                 $toolbar = '';
1134                                 $hidden = 'type="hidden" style="display:none;"';
1135                                 $recreate = $wgOut->parse( wfMsg( 'confirmrecreate',  $this->lastDelete->user_name , $this->lastDelete->log_comment ));
1136                                 $recreate .=
1137                                         "<br /><input tabindex='1' type='checkbox' value='1' name='wpRecreate' id='wpRecreate' />".
1138                                         "<label for='wpRecreate' title='".wfMsg('tooltip-recreate')."'>". wfMsg('recreate')."</label>";
1139                         }
1140                 }
1141
1142                 $tabindex = 2;
1143
1144                 $checkboxes = self::getCheckboxes( $tabindex, $sk,
1145                         array( 'minor' => $this->minoredit, 'watch' => $this->watchthis ) );
1146
1147                 $checkboxhtml = implode( $checkboxes, "\n" );
1148
1149                 $buttons = $this->getEditButtons( $tabindex );
1150                 $buttonshtml = implode( $buttons, "\n" );
1151
1152                 $safemodehtml = $this->checkUnicodeCompliantBrowser()
1153                         ? '' : Xml::hidden( 'safemode', '1' );
1154
1155                 $wgOut->addHTML( <<<END
1156 {$toolbar}
1157 <form id="editform" name="editform" method="post" action="$action" enctype="multipart/form-data">
1158 END
1159 );
1160
1161                 if( is_callable( $formCallback ) ) {
1162                         call_user_func_array( $formCallback, array( &$wgOut ) );
1163                 }
1164
1165                 // Put these up at the top to ensure they aren't lost on early form submission
1166                 $wgOut->addHTML( "
1167 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
1168 <input type='hidden' value=\"{$this->starttime}\" name=\"wpStarttime\" />\n
1169 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n
1170 <input type='hidden' value=\"{$this->scrolltop}\" name=\"wpScrolltop\" id=\"wpScrolltop\" />\n" );
1171
1172                 $wgOut->addHTML( <<<END
1173 $recreate
1174 {$commentsubject}
1175 {$subjectpreview}
1176 <textarea tabindex='1' accesskey="," name="wpTextbox1" id="wpTextbox1" rows='{$rows}'
1177 cols='{$cols}'{$ew} $hidden>
1178 END
1179 . htmlspecialchars( $this->safeUnicodeOutput( $this->textbox1 ) ) .
1180 "
1181 </textarea>
1182                 " );
1183
1184                 $wgOut->addWikiText( $copywarn );
1185                 $wgOut->addHTML( $this->editFormTextAfterWarn );
1186                 $wgOut->addHTML( "
1187 {$metadata}
1188 {$editsummary}
1189 {$summarypreview}
1190 {$checkboxhtml}
1191 {$safemodehtml}
1192 ");
1193
1194                 $wgOut->addHTML(
1195 "<div class='editButtons'>
1196 {$buttonshtml}
1197         <span class='editHelp'>{$cancel} | {$edithelp}</span>
1198 </div><!-- editButtons -->
1199 </div><!-- editOptions -->");
1200
1201                 $wgOut->addHtml( '<div class="mw-editTools">' );
1202                 $wgOut->addWikiText( wfMsgForContent( 'edittools' ) );
1203                 $wgOut->addHtml( '</div>' );
1204
1205                 $wgOut->addHTML( $this->editFormTextAfterTools );
1206
1207                 $wgOut->addHTML( "
1208 <div class='templatesUsed'>
1209 {$formattedtemplates}
1210 </div>
1211 " );
1212
1213                 /**
1214                  * To make it harder for someone to slip a user a page
1215                  * which submits an edit form to the wiki without their
1216                  * knowledge, a random token is associated with the login
1217                  * session. If it's not passed back with the submission,
1218                  * we won't save the page, or render user JavaScript and
1219                  * CSS previews.
1220                  *
1221                  * For anon editors, who may not have a session, we just
1222                  * include the constant suffix to prevent editing from
1223                  * broken text-mangling proxies.
1224                  */
1225                 if ( $wgUser->isLoggedIn() )
1226                         $token = htmlspecialchars( $wgUser->editToken() );
1227                 else
1228                         $token = EDIT_TOKEN_SUFFIX;
1229                 $wgOut->addHTML( "\n<input type='hidden' value=\"$token\" name=\"wpEditToken\" />\n" );
1230
1231
1232                 # If a blank edit summary was previously provided, and the appropriate
1233                 # user preference is active, pass a hidden tag here. This will stop the
1234                 # user being bounced back more than once in the event that a summary
1235                 # is not required.
1236                 if( $this->missingSummary ) {
1237                         $wgOut->addHTML( "<input type=\"hidden\" name=\"wpIgnoreBlankSummary\" value=\"1\" />\n" );
1238                 }
1239
1240                 # For a bit more sophisticated detection of blank summaries, hash the
1241                 # automatic one and pass that in a hidden field.
1242                 $autosumm = $this->autoSumm ? $this->autoSumm : md5( $this->summary );
1243                 $wgOut->addHtml( wfHidden( 'wpAutoSummary', $autosumm ) );
1244
1245                 if ( $this->isConflict ) {
1246                         $wgOut->addWikiText( '==' . wfMsg( "yourdiff" ) . '==' );
1247
1248                         $de = new DifferenceEngine( $this->mTitle );
1249                         $de->setText( $this->textbox2, $this->textbox1 );
1250                         $de->showDiff( wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
1251
1252                         $wgOut->addWikiText( '==' . wfMsg( "yourtext" ) . '==' );
1253                         $wgOut->addHTML( "<textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
1254                                 . htmlspecialchars( $this->safeUnicodeOutput( $this->textbox2 ) ) . "\n</textarea>" );
1255                 }
1256                 $wgOut->addHTML( $this->editFormTextBottom );
1257                 $wgOut->addHTML( "</form>\n" );
1258                 if ( !$wgUser->getOption( 'previewontop' ) ) {
1259
1260                         if ( $this->formtype == 'preview') {
1261                                 $this->showPreview( $previewOutput );
1262                         } else {
1263                                 $wgOut->addHTML( '<div id="wikiPreview"></div>' );
1264                         }
1265
1266                         if ( $this->formtype == 'diff') {
1267                                 $wgOut->addHTML( $this->getDiff() );
1268                         }
1269
1270                 }
1271
1272                 wfProfileOut( $fname );
1273         }
1274
1275         /**
1276          * Append preview output to $wgOut.
1277          * Includes category rendering if this is a category page.
1278          *
1279          * @param string $text The HTML to be output for the preview.
1280          */
1281         private function showPreview( $text ) {
1282                 global $wgOut;
1283
1284                 $wgOut->addHTML( '<div id="wikiPreview">' );
1285                 if($this->mTitle->getNamespace() == NS_CATEGORY) {
1286                         $this->mArticle->openShowCategory();
1287                 }
1288                 $wgOut->addHTML( $text );
1289                 if($this->mTitle->getNamespace() == NS_CATEGORY) {
1290                         $this->mArticle->closeShowCategory();
1291                 }
1292                 $wgOut->addHTML( '</div>' );
1293         }
1294
1295         /**
1296          * Live Preview lets us fetch rendered preview page content and
1297          * add it to the page without refreshing the whole page.
1298          * If not supported by the browser it will fall through to the normal form
1299          * submission method.
1300          *
1301          * This function outputs a script tag to support live preview, and
1302          * returns an onclick handler which should be added to the attributes
1303          * of the preview button
1304          */
1305         function doLivePreviewScript() {
1306                 global $wgStylePath, $wgJsMimeType, $wgStyleVersion, $wgOut, $wgTitle;
1307                 $wgOut->addHTML( '<script type="'.$wgJsMimeType.'" src="' .
1308                         htmlspecialchars( "$wgStylePath/common/preview.js?$wgStyleVersion" ) .
1309                         '"></script>' . "\n" );
1310                 $liveAction = $wgTitle->getLocalUrl( 'action=submit&wpPreview=true&live=true' );
1311                 return "return !livePreview(" .
1312                         "getElementById('wikiPreview')," .
1313                         "editform.wpTextbox1.value," .
1314                         '"' . $liveAction . '"' . ")";
1315         }
1316
1317         function getLastDelete() {
1318                 $dbr = wfGetDB( DB_SLAVE );
1319                 $fname = 'EditPage::getLastDelete';
1320                 $res = $dbr->select(
1321                         array( 'logging', 'user' ),
1322                         array( 'log_type',
1323                                'log_action',
1324                                'log_timestamp',
1325                                'log_user',
1326                                'log_namespace',
1327                                'log_title',
1328                                'log_comment',
1329                                'log_params',
1330                                'user_name', ),
1331                         array( 'log_namespace' => $this->mTitle->getNamespace(),
1332                                'log_title' => $this->mTitle->getDBkey(),
1333                                'log_type' => 'delete',
1334                                'log_action' => 'delete',
1335                                'user_id=log_user' ),
1336                         $fname,
1337                         array( 'LIMIT' => 1, 'ORDER BY' => 'log_timestamp DESC' ) );
1338
1339                 if($dbr->numRows($res) == 1) {
1340                         while ( $x = $dbr->fetchObject ( $res ) )
1341                                 $data = $x;
1342                         $dbr->freeResult ( $res ) ;
1343                 } else {
1344                         $data = null;
1345                 }
1346                 return $data;
1347         }
1348
1349         /**
1350          * @todo document
1351          */
1352         function getPreviewText() {
1353                 global $wgOut, $wgUser, $wgTitle, $wgParser;
1354
1355                 $fname = 'EditPage::getPreviewText';
1356                 wfProfileIn( $fname );
1357
1358                 if ( $this->mTriedSave && !$this->mTokenOk ) {
1359                         $msg = 'session_fail_preview';
1360                 } else {
1361                         $msg = 'previewnote';
1362                 }
1363                 $previewhead = '<h2>' . htmlspecialchars( wfMsg( 'preview' ) ) . "</h2>\n" .
1364                         "<div class='previewnote'>" . $wgOut->parse( wfMsg( $msg ) ) . "</div>\n";
1365                 if ( $this->isConflict ) {
1366                         $previewhead.='<h2>' . htmlspecialchars( wfMsg( 'previewconflict' ) ) . "</h2>\n";
1367                 }
1368
1369                 $parserOptions = ParserOptions::newFromUser( $wgUser );
1370                 $parserOptions->setEditSection( false );
1371
1372                 global $wgRawHtml;
1373                 if( $wgRawHtml && !$this->mTokenOk ) {
1374                         // Could be an offsite preview attempt. This is very unsafe if
1375                         // HTML is enabled, as it could be an attack.
1376                         return $wgOut->parse( "<div class='previewnote'>" .
1377                                 wfMsg( 'session_fail_preview_html' ) . "</div>" );
1378                 }
1379
1380                 # don't parse user css/js, show message about preview
1381                 # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
1382
1383                 if ( $this->isCssJsSubpage ) {
1384                         if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
1385                                 $previewtext = wfMsg('usercsspreview');
1386                         } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
1387                                 $previewtext = wfMsg('userjspreview');
1388                         }
1389                         $parserOptions->setTidy(true);
1390                         $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
1391                         $wgOut->addHTML( $parserOutput->mText );
1392                         wfProfileOut( $fname );
1393                         return $previewhead;
1394                 } else {
1395                         $toparse = $this->textbox1;
1396
1397                         # If we're adding a comment, we need to show the
1398                         # summary as the headline
1399                         if($this->section=="new" && $this->summary!="") {
1400                                 $toparse="== {$this->summary} ==\n\n".$toparse;
1401                         }
1402
1403                         if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData ;
1404                         $parserOptions->setTidy(true);
1405                         $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ) ."\n\n",
1406                                         $wgTitle, $parserOptions );
1407
1408                         $previewHTML = $parserOutput->getText();
1409                         $wgOut->addParserOutputNoText( $parserOutput );
1410
1411                         foreach ( $parserOutput->getTemplates() as $ns => $template)
1412                                 foreach ( array_keys( $template ) as $dbk)
1413                                         $this->mPreviewTemplates[] = Title::makeTitle($ns, $dbk);
1414
1415                         wfProfileOut( $fname );
1416                         return $previewhead . $previewHTML;
1417                 }
1418         }
1419
1420         /**
1421          * Call the stock "user is blocked" page
1422          */
1423         function blockedPage() {
1424                 global $wgOut, $wgUser;
1425                 $wgOut->blockedPage( false ); # Standard block notice on the top, don't 'return'
1426
1427                 # If the user made changes, preserve them when showing the markup
1428                 # (This happens when a user is blocked during edit, for instance)
1429                 $first = $this->firsttime || ( !$this->save && $this->textbox1 == '' );
1430                 if( $first ) {
1431                         $source = $this->mTitle->exists() ? $this->getContent() : false;
1432                 } else {
1433                         $source = $this->textbox1;
1434                 }
1435
1436                 # Spit out the source or the user's modified version
1437                 if( $source !== false ) {
1438                         $rows = $wgUser->getOption( 'rows' );
1439                         $cols = $wgUser->getOption( 'cols' );
1440                         $attribs = array( 'id' => 'wpTextbox1', 'name' => 'wpTextbox1', 'cols' => $cols, 'rows' => $rows, 'readonly' => 'readonly' );
1441                         $wgOut->addHtml( '<hr />' );
1442                         $wgOut->addWikiText( wfMsg( $first ? 'blockedoriginalsource' : 'blockededitsource', $this->mTitle->getPrefixedText() ) );
1443                         $wgOut->addHtml( wfOpenElement( 'textarea', $attribs ) . htmlspecialchars( $source ) . wfCloseElement( 'textarea' ) );
1444                 }
1445         }
1446
1447         /**
1448          * Produce the stock "please login to edit pages" page
1449          */
1450         function userNotLoggedInPage() {
1451                 global $wgUser, $wgOut;
1452                 $skin = $wgUser->getSkin();
1453
1454                 $loginTitle = SpecialPage::getTitleFor( 'Userlogin' );
1455                 $loginLink = $skin->makeKnownLinkObj( $loginTitle, wfMsgHtml( 'loginreqlink' ), 'returnto=' . $this->mTitle->getPrefixedUrl() );
1456
1457                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
1458                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1459                 $wgOut->setArticleRelated( false );
1460
1461                 $wgOut->addHtml( wfMsgWikiHtml( 'whitelistedittext', $loginLink ) );
1462                 $wgOut->returnToMain( false, $this->mTitle->getPrefixedUrl() );
1463         }
1464
1465         /**
1466          * Creates a basic error page which informs the user that
1467          * they have to validate their email address before being
1468          * allowed to edit.
1469          */
1470         function userNotConfirmedPage() {
1471                 global $wgOut;
1472
1473                 $wgOut->setPageTitle( wfMsg( 'confirmedittitle' ) );
1474                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1475                 $wgOut->setArticleRelated( false );
1476
1477                 $wgOut->addWikiText( wfMsg( 'confirmedittext' ) );
1478                 $wgOut->returnToMain( false );
1479         }
1480
1481         /**
1482          * Creates a basic error page which informs the user that
1483          * they have attempted to edit a nonexistant section.
1484          */
1485         function noSuchSectionPage() {
1486                 global $wgOut;
1487
1488                 $wgOut->setPageTitle( wfMsg( 'nosuchsectiontitle' ) );
1489                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1490                 $wgOut->setArticleRelated( false );
1491
1492                 $wgOut->addWikiText( wfMsg( 'nosuchsectiontext', $this->section ) );
1493                 $wgOut->returnToMain( false );
1494         }
1495
1496         /**
1497          * Produce the stock "your edit contains spam" page
1498          *
1499          * @param $match Text which triggered one or more filters
1500          */
1501         function spamPage( $match = false ) {
1502                 global $wgOut;
1503
1504                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
1505                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1506                 $wgOut->setArticleRelated( false );
1507
1508                 $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
1509                 if ( $match )
1510                         $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$match}</nowiki>" ) );
1511
1512                 $wgOut->returnToMain( false );
1513         }
1514
1515         /**
1516          * @private
1517          * @todo document
1518          */
1519         function mergeChangesInto( &$editText ){
1520                 $fname = 'EditPage::mergeChangesInto';
1521                 wfProfileIn( $fname );
1522
1523                 $db = wfGetDB( DB_MASTER );
1524
1525                 // This is the revision the editor started from
1526                 $baseRevision = Revision::loadFromTimestamp(
1527                         $db, $this->mArticle->mTitle, $this->edittime );
1528                 if( is_null( $baseRevision ) ) {
1529                         wfProfileOut( $fname );
1530                         return false;
1531                 }
1532                 $baseText = $baseRevision->getText();
1533
1534                 // The current state, we want to merge updates into it
1535                 $currentRevision =  Revision::loadFromTitle(
1536                         $db, $this->mArticle->mTitle );
1537                 if( is_null( $currentRevision ) ) {
1538                         wfProfileOut( $fname );
1539                         return false;
1540                 }
1541                 $currentText = $currentRevision->getText();
1542
1543                 $result = '';
1544                 if( wfMerge( $baseText, $editText, $currentText, $result ) ){
1545                         $editText = $result;
1546                         wfProfileOut( $fname );
1547                         return true;
1548                 } else {
1549                         wfProfileOut( $fname );
1550                         return false;
1551                 }
1552         }
1553
1554         /**
1555          * Check if the browser is on a blacklist of user-agents known to
1556          * mangle UTF-8 data on form submission. Returns true if Unicode
1557          * should make it through, false if it's known to be a problem.
1558          * @return bool
1559          * @private
1560          */
1561         function checkUnicodeCompliantBrowser() {
1562                 global $wgBrowserBlackList;
1563                 if( empty( $_SERVER["HTTP_USER_AGENT"] ) ) {
1564                         // No User-Agent header sent? Trust it by default...
1565                         return true;
1566                 }
1567                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
1568                 foreach ( $wgBrowserBlackList as $browser ) {
1569                         if ( preg_match($browser, $currentbrowser) ) {
1570                                 return false;
1571                         }
1572                 }
1573                 return true;
1574         }
1575
1576         /**
1577          * Format an anchor fragment as it would appear for a given section name
1578          * @param string $text
1579          * @return string
1580          * @private
1581          */
1582         function sectionAnchor( $text ) {
1583                 $headline = Sanitizer::decodeCharReferences( $text );
1584                 # strip out HTML
1585                 $headline = preg_replace( '/<.*?' . '>/', '', $headline );
1586                 $headline = trim( $headline );
1587                 $sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
1588                 $replacearray = array(
1589                         '%3A' => ':',
1590                         '%' => '.'
1591                 );
1592                 return str_replace(
1593                         array_keys( $replacearray ),
1594                         array_values( $replacearray ),
1595                         $sectionanchor );
1596         }
1597
1598         /**
1599          * Shows a bulletin board style toolbar for common editing functions.
1600          * It can be disabled in the user preferences.
1601          * The necessary JavaScript code can be found in style/wikibits.js.
1602          */
1603         function getEditToolbar() {
1604                 global $wgStylePath, $wgContLang, $wgJsMimeType;
1605
1606                 /**
1607                  * toolarray an array of arrays which each include the filename of
1608                  * the button image (without path), the opening tag, the closing tag,
1609                  * and optionally a sample text that is inserted between the two when no
1610                  * selection is highlighted.
1611                  * The tip text is shown when the user moves the mouse over the button.
1612                  *
1613                  * Already here are accesskeys (key), which are not used yet until someone
1614                  * can figure out a way to make them work in IE. However, we should make
1615                  * sure these keys are not defined on the edit page.
1616                  */
1617                 $toolarray = array(
1618                         array(  'image' => 'button_bold.png',
1619                                 'id'    => 'mw-editbutton-bold',
1620                                 'open'  => '\\\'\\\'\\\'',
1621                                 'close' => '\\\'\\\'\\\'',
1622                                 'sample'=> wfMsg('bold_sample'),
1623                                 'tip'   => wfMsg('bold_tip'),
1624                                 'key'   => 'B'
1625                         ),
1626                         array(  'image' => 'button_italic.png',
1627                                 'id'    => 'mw-editbutton-italic',
1628                                 'open'  => '\\\'\\\'',
1629                                 'close' => '\\\'\\\'',
1630                                 'sample'=> wfMsg('italic_sample'),
1631                                 'tip'   => wfMsg('italic_tip'),
1632                                 'key'   => 'I'
1633                         ),
1634                         array(  'image' => 'button_link.png',
1635                                 'id'    => 'mw-editbutton-link',
1636                                 'open'  => '[[',
1637                                 'close' => ']]',
1638                                 'sample'=> wfMsg('link_sample'),
1639                                 'tip'   => wfMsg('link_tip'),
1640                                 'key'   => 'L'
1641                         ),
1642                         array(  'image' => 'button_extlink.png',
1643                                 'id'    => 'mw-editbutton-extlink',
1644                                 'open'  => '[',
1645                                 'close' => ']',
1646                                 'sample'=> wfMsg('extlink_sample'),
1647                                 'tip'   => wfMsg('extlink_tip'),
1648                                 'key'   => 'X'
1649                         ),
1650                         array(  'image' => 'button_headline.png',
1651                                 'id'    => 'mw-editbutton-headline',
1652                                 'open'  => "\\n== ",
1653                                 'close' => " ==\\n",
1654                                 'sample'=> wfMsg('headline_sample'),
1655                                 'tip'   => wfMsg('headline_tip'),
1656                                 'key'   => 'H'
1657                         ),
1658                         array(  'image' => 'button_image.png',
1659                                 'id'    => 'mw-editbutton-image',
1660                                 'open'  => '[['.$wgContLang->getNsText(NS_IMAGE).":",
1661                                 'close' => ']]',
1662                                 'sample'=> wfMsg('image_sample'),
1663                                 'tip'   => wfMsg('image_tip'),
1664                                 'key'   => 'D'
1665                         ),
1666                         array(  'image' => 'button_media.png',
1667                                 'id'    => 'mw-editbutton-media',
1668                                 'open'  => '[['.$wgContLang->getNsText(NS_MEDIA).':',
1669                                 'close' => ']]',
1670                                 'sample'=> wfMsg('media_sample'),
1671                                 'tip'   => wfMsg('media_tip'),
1672                                 'key'   => 'M'
1673                         ),
1674                         array(  'image' => 'button_math.png',
1675                                 'id'    => 'mw-editbutton-math',
1676                                 'open'  => "<math>",
1677                                 'close' => "<\\/math>",
1678                                 'sample'=> wfMsg('math_sample'),
1679                                 'tip'   => wfMsg('math_tip'),
1680                                 'key'   => 'C'
1681                         ),
1682                         array(  'image' => 'button_nowiki.png',
1683                                 'id'    => 'mw-editbutton-nowiki',
1684                                 'open'  => "<nowiki>",
1685                                 'close' => "<\\/nowiki>",
1686                                 'sample'=> wfMsg('nowiki_sample'),
1687                                 'tip'   => wfMsg('nowiki_tip'),
1688                                 'key'   => 'N'
1689                         ),
1690                         array(  'image' => 'button_sig.png',
1691                                 'id'    => 'mw-editbutton-signature',
1692                                 'open'  => '--~~~~',
1693                                 'close' => '',
1694                                 'sample'=> '',
1695                                 'tip'   => wfMsg('sig_tip'),
1696                                 'key'   => 'Y'
1697                         ),
1698                         array(  'image' => 'button_hr.png',
1699                                 'id'    => 'mw-editbutton-hr',
1700                                 'open'  => "\\n----\\n",
1701                                 'close' => '',
1702                                 'sample'=> '',
1703                                 'tip'   => wfMsg('hr_tip'),
1704                                 'key'   => 'R'
1705                         )
1706                 );
1707                 $toolbar = "<div id='toolbar'>\n";
1708                 $toolbar.="<script type='$wgJsMimeType'>\n/*<![CDATA[*/\n";
1709
1710                 foreach($toolarray as $tool) {
1711
1712                         $cssId = $tool['id'];
1713                         $image=$wgStylePath.'/common/images/'.$tool['image'];
1714                         $open=$tool['open'];
1715                         $close=$tool['close'];
1716                         $sample = wfEscapeJsString( $tool['sample'] );
1717
1718                         // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
1719                         // Older browsers show a "speedtip" type message only for ALT.
1720                         // Ideally these should be different, realistically they
1721                         // probably don't need to be.
1722                         $tip = wfEscapeJsString( $tool['tip'] );
1723
1724                         #$key = $tool["key"];
1725
1726                         $toolbar.="addButton('$image','$tip','$open','$close','$sample','$cssId');\n";
1727                 }
1728
1729                 $toolbar.="/*]]>*/\n</script>";
1730                 $toolbar.="\n</div>";
1731                 return $toolbar;
1732         }
1733
1734         /**
1735          * Returns an array of html code of the following checkboxes:
1736          * minor and watch
1737          *
1738          * @param $tabindex Current tabindex
1739          * @param $skin Skin object
1740          * @param $checked Array of checkbox => bool, where bool indicates the checked
1741          *                 status of the checkbox
1742          *
1743          * @return array
1744          */
1745         public static function getCheckboxes( &$tabindex, $skin, $checked ) {
1746                 global $wgUser;
1747
1748                 $checkboxes = array();
1749
1750                 $checkboxes['minor'] = '';
1751                 $minorLabel = wfMsgExt('minoredit', array('parseinline'));
1752                 if ( $wgUser->isAllowed('minoredit') ) {
1753                         $attribs = array(
1754                                 'tabindex'  => ++$tabindex,
1755                                 'accesskey' => wfMsg( 'accesskey-minoredit' ),
1756                                 'id'        => 'wpMinoredit',
1757                         );
1758                         $checkboxes['minor'] =
1759                                 Xml::check( 'wpMinoredit', $checked['minor'], $attribs ) .
1760                                 "&nbsp;<label for='wpMinoredit'".$skin->tooltipAndAccesskey('minoredit').">{$minorLabel}</label>";
1761                 }
1762
1763                 $watchLabel = wfMsgExt('watchthis', array('parseinline'));
1764                 $checkboxes['watch'] = '';
1765                 if ( $wgUser->isLoggedIn() ) {
1766                         $attribs = array(
1767                                 'tabindex'  => ++$tabindex,
1768                                 'accesskey' => wfMsg( 'accesskey-watch' ),
1769                                 'id'        => 'wpWatchthis',
1770                         );
1771                         $checkboxes['watch'] =
1772                                 Xml::check( 'wpWatchthis', $checked['watch'], $attribs ) .
1773                                 "&nbsp;<label for='wpWatchthis'".$skin->tooltipAndAccesskey('watch').">{$watchLabel}</label>";
1774                 }
1775                 return $checkboxes;
1776         }
1777
1778         /**
1779          * Returns an array of html code of the following buttons:
1780          * save, diff, preview and live
1781          *
1782          * @param $tabindex Current tabindex
1783          *
1784          * @return array
1785          */
1786         public function getEditButtons(&$tabindex) {
1787                 global $wgLivePreview, $wgUser;
1788
1789                 $buttons = array();
1790
1791                 $temp = array(
1792                         'id'        => 'wpSave',
1793                         'name'      => 'wpSave',
1794                         'type'      => 'submit',
1795                         'tabindex'  => ++$tabindex,
1796                         'value'     => wfMsg('savearticle'),
1797                         'accesskey' => wfMsg('accesskey-save'),
1798                         'title'     => wfMsg( 'tooltip-save' ).' ['.wfMsg( 'accesskey-save' ).']',
1799                 );
1800                 $buttons['save'] = wfElement('input', $temp, '');
1801
1802                 ++$tabindex; // use the same for preview and live preview
1803                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
1804                         $temp = array(
1805                                 'id'        => 'wpPreview',
1806                                 'name'      => 'wpPreview',
1807                                 'type'      => 'submit',
1808                                 'tabindex'  => $tabindex,
1809                                 'value'     => wfMsg('showpreview'),
1810                                 'accesskey' => '',
1811                                 'title'     => wfMsg( 'tooltip-preview' ).' ['.wfMsg( 'accesskey-preview' ).']',
1812                                 'style'     => 'display: none;',
1813                         );
1814                         $buttons['preview'] = wfElement('input', $temp, '');
1815
1816                         $temp = array(
1817                                 'id'        => 'wpLivePreview',
1818                                 'name'      => 'wpLivePreview',
1819                                 'type'      => 'submit',
1820                                 'tabindex'  => $tabindex,
1821                                 'value'     => wfMsg('showlivepreview'),
1822                                 'accesskey' => wfMsg('accesskey-preview'),
1823                                 'title'     => '',
1824                                 'onclick'   => $this->doLivePreviewScript(),
1825                         );
1826                         $buttons['live'] = wfElement('input', $temp, '');
1827                 } else {
1828                         $temp = array(
1829                                 'id'        => 'wpPreview',
1830                                 'name'      => 'wpPreview',
1831                                 'type'      => 'submit',
1832                                 'tabindex'  => $tabindex,
1833                                 'value'     => wfMsg('showpreview'),
1834                                 'accesskey' => wfMsg('accesskey-preview'),
1835                                 'title'     => wfMsg( 'tooltip-preview' ).' ['.wfMsg( 'accesskey-preview' ).']',
1836                         );
1837                         $buttons['preview'] = wfElement('input', $temp, '');
1838                         $buttons['live'] = '';
1839                 }
1840
1841                 $temp = array(
1842                         'id'        => 'wpDiff',
1843                         'name'      => 'wpDiff',
1844                         'type'      => 'submit',
1845                         'tabindex'  => ++$tabindex,
1846                         'value'     => wfMsg('showdiff'),
1847                         'accesskey' => wfMsg('accesskey-diff'),
1848                         'title'     => wfMsg( 'tooltip-diff' ).' ['.wfMsg( 'accesskey-diff' ).']',
1849                 );
1850                 $buttons['diff'] = wfElement('input', $temp, '');
1851
1852                 return $buttons;
1853         }
1854
1855         /**
1856          * Output preview text only. This can be sucked into the edit page
1857          * via JavaScript, and saves the server time rendering the skin as
1858          * well as theoretically being more robust on the client (doesn't
1859          * disturb the edit box's undo history, won't eat your text on
1860          * failure, etc).
1861          *
1862          * @todo This doesn't include category or interlanguage links.
1863          *       Would need to enhance it a bit, <s>maybe wrap them in XML
1864          *       or something...</s> that might also require more skin
1865          *       initialization, so check whether that's a problem.
1866          */
1867         function livePreview() {
1868                 global $wgOut;
1869                 $wgOut->disable();
1870                 header( 'Content-type: text/xml; charset=utf-8' );
1871                 header( 'Cache-control: no-cache' );
1872
1873                 $s =
1874                 '<?xml version="1.0" encoding="UTF-8" ?>' . "\n" .
1875                 Xml::openElement( 'livepreview' ) .
1876                 Xml::element( 'preview', null, $this->getPreviewText() ) .
1877                 Xml::element( 'br', array( 'style' => 'clear: both;' ) ) .
1878                 Xml::closeElement( 'livepreview' );
1879                 echo $s;
1880         }
1881
1882
1883         /**
1884          * Get a diff between the current contents of the edit box and the
1885          * version of the page we're editing from.
1886          *
1887          * If this is a section edit, we'll replace the section as for final
1888          * save and then make a comparison.
1889          *
1890          * @return string HTML
1891          */
1892         function getDiff() {
1893                 $oldtext = $this->mArticle->fetchContent();
1894                 $newtext = $this->mArticle->replaceSection(
1895                         $this->section, $this->textbox1, $this->summary, $this->edittime );
1896                 $newtext = $this->mArticle->preSaveTransform( $newtext );
1897                 $oldtitle = wfMsgExt( 'currentrev', array('parseinline') );
1898                 $newtitle = wfMsgExt( 'yourtext', array('parseinline') );
1899                 if ( $oldtext !== false  || $newtext != '' ) {
1900                         $de = new DifferenceEngine( $this->mTitle );
1901                         $de->setText( $oldtext, $newtext );
1902                         $difftext = $de->getDiff( $oldtitle, $newtitle );
1903                 } else {
1904                         $difftext = '';
1905                 }
1906
1907                 return '<div id="wikiDiff">' . $difftext . '</div>';
1908         }
1909
1910         /**
1911          * Filter an input field through a Unicode de-armoring process if it
1912          * came from an old browser with known broken Unicode editing issues.
1913          *
1914          * @param WebRequest $request
1915          * @param string $field
1916          * @return string
1917          * @private
1918          */
1919         function safeUnicodeInput( $request, $field ) {
1920                 $text = rtrim( $request->getText( $field ) );
1921                 return $request->getBool( 'safemode' )
1922                         ? $this->unmakesafe( $text )
1923                         : $text;
1924         }
1925
1926         /**
1927          * Filter an output field through a Unicode armoring process if it is
1928          * going to an old browser with known broken Unicode editing issues.
1929          *
1930          * @param string $text
1931          * @return string
1932          * @private
1933          */
1934         function safeUnicodeOutput( $text ) {
1935                 global $wgContLang;
1936                 $codedText = $wgContLang->recodeForEdit( $text );
1937                 return $this->checkUnicodeCompliantBrowser()
1938                         ? $codedText
1939                         : $this->makesafe( $codedText );
1940         }
1941
1942         /**
1943          * A number of web browsers are known to corrupt non-ASCII characters
1944          * in a UTF-8 text editing environment. To protect against this,
1945          * detected browsers will be served an armored version of the text,
1946          * with non-ASCII chars converted to numeric HTML character references.
1947          *
1948          * Preexisting such character references will have a 0 added to them
1949          * to ensure that round-trips do not alter the original data.
1950          *
1951          * @param string $invalue
1952          * @return string
1953          * @private
1954          */
1955         function makesafe( $invalue ) {
1956                 // Armor existing references for reversability.
1957                 $invalue = strtr( $invalue, array( "&#x" => "&#x0" ) );
1958
1959                 $bytesleft = 0;
1960                 $result = "";
1961                 $working = 0;
1962                 for( $i = 0; $i < strlen( $invalue ); $i++ ) {
1963                         $bytevalue = ord( $invalue{$i} );
1964                         if( $bytevalue <= 0x7F ) { //0xxx xxxx
1965                                 $result .= chr( $bytevalue );
1966                                 $bytesleft = 0;
1967                         } elseif( $bytevalue <= 0xBF ) { //10xx xxxx
1968                                 $working = $working << 6;
1969                                 $working += ($bytevalue & 0x3F);
1970                                 $bytesleft--;
1971                                 if( $bytesleft <= 0 ) {
1972                                         $result .= "&#x" . strtoupper( dechex( $working ) ) . ";";
1973                                 }
1974                         } elseif( $bytevalue <= 0xDF ) { //110x xxxx
1975                                 $working = $bytevalue & 0x1F;
1976                                 $bytesleft = 1;
1977                         } elseif( $bytevalue <= 0xEF ) { //1110 xxxx
1978                                 $working = $bytevalue & 0x0F;
1979                                 $bytesleft = 2;
1980                         } else { //1111 0xxx
1981                                 $working = $bytevalue & 0x07;
1982                                 $bytesleft = 3;
1983                         }
1984                 }
1985                 return $result;
1986         }
1987
1988         /**
1989          * Reverse the previously applied transliteration of non-ASCII characters
1990          * back to UTF-8. Used to protect data from corruption by broken web browsers
1991          * as listed in $wgBrowserBlackList.
1992          *
1993          * @param string $invalue
1994          * @return string
1995          * @private
1996          */
1997         function unmakesafe( $invalue ) {
1998                 $result = "";
1999                 for( $i = 0; $i < strlen( $invalue ); $i++ ) {
2000                         if( ( substr( $invalue, $i, 3 ) == "&#x" ) && ( $invalue{$i+3} != '0' ) ) {
2001                                 $i += 3;
2002                                 $hexstring = "";
2003                                 do {
2004                                         $hexstring .= $invalue{$i};
2005                                         $i++;
2006                                 } while( ctype_xdigit( $invalue{$i} ) && ( $i < strlen( $invalue ) ) );
2007
2008                                 // Do some sanity checks. These aren't needed for reversability,
2009                                 // but should help keep the breakage down if the editor
2010                                 // breaks one of the entities whilst editing.
2011                                 if ((substr($invalue,$i,1)==";") and (strlen($hexstring) <= 6)) {
2012                                         $codepoint = hexdec($hexstring);
2013                                         $result .= codepointToUtf8( $codepoint );
2014                                 } else {
2015                                         $result .= "&#x" . $hexstring . substr( $invalue, $i, 1 );
2016                                 }
2017                         } else {
2018                                 $result .= substr( $invalue, $i, 1 );
2019                         }
2020                 }
2021                 // reverse the transform that we made for reversability reasons.
2022                 return strtr( $result, array( "&#x0" => "&#x" ) );
2023         }
2024
2025         function noCreatePermission() {
2026                 global $wgOut;
2027                 $wgOut->setPageTitle( wfMsg( 'nocreatetitle' ) );
2028                 $wgOut->addWikiText( wfMsg( 'nocreatetext' ) );
2029         }
2030
2031 }
2032
2033 ?>