includes/EditPage.php

   1 <?php
   2 /**
   3  * Contain the EditPage class
   4  * @package MediaWiki
   5  */
   6
   7 /**
   8  * Splitting edit page/HTML interface from Article...
   9  * The actual database and text munging is still in Article,
  10  * but it should get easier to call those from alternate
  11  * interfaces.
  12  *
  13  * @package MediaWiki
  14  */
  15
  16 class EditPage {
  17         var $mArticle;
  18         var $mTitle;
  19         var $mMetaData = '';
  20
  21         # Form values
  22         var $save = false, $preview = false, $diff = false;
  23         var $minoredit = false, $watchthis = false;
  24         var $textbox1 = '', $textbox2 = '', $summary = '';
  25         var $edittime = '', $section = '';
  26         var $oldid = 0;
  27
  28         /**
  29          * @todo document
  30          * @param $article
  31          */
  32         function EditPage( $article ) {
  33                 $this->mArticle =& $article;
  34                 global $wgTitle;
  35                 $this->mTitle =& $wgTitle;
  36         }
  37
  38         /**
  39          * This is the function that extracts metadata from the article body on the first view.
  40          * To turn the feature on, set $wgUseMetadataEdit = true ; in LocalSettings
  41          *  and set $wgMetadataWhitelist to the *full* title of the template whitelist
  42          */
  43         function extractMetaDataFromArticle ()
  44         {
  45                 global $wgUseMetadataEdit , $wgMetadataWhitelist , $wgLang ;
  46                 $this->mMetaData = '' ;
  47                 if ( !$wgUseMetadataEdit ) return ;
  48                 if ( $wgMetadataWhitelist == "" ) return ;
  49                 $s = '' ;
  50                 $t = $this->mArticle->getContent ( true ) ;
  51
  52                 # MISSING : <nowiki> filtering
  53
  54                 # Categories and language links
  55                 $t = explode ( "\n" , $t ) ;
  56                 $catlow = strtolower ( $wgLang->getNsText ( NS_CATEGORY ) ) ;
  57                 $cat = $ll = array() ;
  58                 foreach ( $t AS $key => $x )
  59                 {
  60                         $y = trim ( strtolower ( $x ) ) ;
  61                         while ( substr ( $y , 0 , 2 ) == "[[" )
  62                         {
  63                                 $y = explode ( "]]" , trim ( $x ) ) ;
  64                                 $first = array_shift ( $y ) ;
  65                                 $first = explode ( ":" , $first ) ;
  66                                 $ns = array_shift ( $first ) ;
  67                                 $ns = trim ( str_replace ( '[' , '' , $ns ) ) ;
  68                                 if ( strlen ( $ns ) == 2 OR strtolower ( $ns ) == $catlow )
  69                                 {
  70                                         $add = '[[' . $ns . ':' . implode ( ':' , $first ) . ']]' ;
  71                                         if ( strtolower ( $ns ) == $catlow ) $cat[] = $add ;
  72                                         else $ll[] = $add ;
  73                                         $x = implode ( ']]' , $y ) ;
  74                                         $t[$key] = $x ;
  75                                         $y = trim ( strtolower ( $x ) ) ;
  76                                 }
  77                         }
  78                 }
  79                 if ( count ( $cat ) ) $s .= implode ( ' ' , $cat ) . "\n" ;
  80                 if ( count ( $ll ) ) $s .= implode ( ' ' , $ll ) . "\n" ;
  81                 $t = implode ( "\n" , $t ) ;
  82
  83                 # Load whitelist
  84                 $sat = array () ; # stand-alone-templates; must be lowercase
  85                 $wl_title = Title::newFromText ( $wgMetadataWhitelist ) ;
  86                 $wl_article = new Article ( $wl_title ) ;
  87                 $wl = explode ( "\n" , $wl_article->getContent(true) ) ;
  88                 foreach ( $wl AS $x )
  89                 {
  90                         $isentry = false ;
  91                         $x = trim ( $x ) ;
  92                         while ( substr ( $x , 0 , 1 ) == '*' )
  93                         {
  94                                 $isentry = true ;
  95                                 $x = trim ( substr ( $x , 1 ) ) ;
  96                         }
  97                         if ( $isentry )
  98                         {
  99                                 $sat[] = strtolower ( $x ) ;
 100                         }
 101
 102                 }
 103
 104                 # Templates, but only some
 105                 $t = explode ( '{{' , $t ) ;
 106                 $tl = array () ;
 107                 foreach ( $t AS $key => $x )
 108                 {
 109                         $y = explode ( '}}' , $x , 2 ) ;
 110                         if ( count ( $y ) == 2 )
 111                         {
 112                                 $z = $y[0] ;
 113                                 $z = explode ( '|' , $z ) ;
 114                                 $tn = array_shift ( $z ) ;
 115                                 if ( in_array ( strtolower ( $tn ) , $sat ) )
 116                                 {
 117                                         $tl[] = '{{' . $y[0] . '}}' ;
 118                                         $t[$key] = $y[1] ;
 119                                         $y = explode ( '}}' , $y[1] , 2 ) ;
 120                                 }
 121                                 else $t[$key] = '{{' . $x ;
 122                         }
 123                         else if ( $key != 0 ) $t[$key] = '{{' . $x ;
 124                         else $t[$key] = $x ;
 125                 }
 126                 if ( count ( $tl ) ) $s .= implode ( ' ' , $tl ) ;
 127                 $t = implode ( '' , $t ) ;
 128
 129                 $t = str_replace ( "\n\n\n" , "\n" , $t ) ;
 130                 $this->mArticle->mContent = $t ;
 131                 $this->mMetaData = $s ;
 132         }
 133
 134         /**
 135          * This is the function that gets called for "action=edit".
 136          */
 137         function edit() {
 138                 global $wgOut, $wgUser, $wgRequest;
 139                 // this is not an article
 140                 $wgOut->setArticleFlag(false);
 141
 142                 $this->importFormData( $wgRequest );
 143
 144                 if( $this->live ) {
 145                         $this->livePreview();
 146                         return;
 147                 }
 148
 149                 if ( ! $this->mTitle->userCanEdit() ) {
 150                         $wgOut->readOnlyPage( $this->mArticle->getContent( true ), true );
 151                         return;
 152                 }
 153                 if ( !$this->preview && !$this->diff && $wgUser->isBlocked( !$this->save ) ) {
 154                         # When previewing, don't check blocked state - will get caught at save time.
 155                         # Also, check when starting edition is done against slave to improve performance.
 156                         $this->blockedIPpage();
 157                         return;
 158                 }
 159                 if ( !$wgUser->isAllowed('edit') ) {
 160                         if ( $wgUser->isAnon() ) {
 161                                 $this->userNotLoggedInPage();
 162                                 return;
 163                         } else {
 164                                 $wgOut->readOnlyPage( $this->mArticle->getContent( true ), true );
 165                                 return;
 166                         }
 167                 }
 168                 if ( wfReadOnly() ) {
 169                         if( $this->save || $this->preview ) {
 170                                 $this->editForm( 'preview' );
 171                         } else if ( $this->diff ) {
 172                                 $this->editForm( 'diff' );
 173                         } else {
 174                                 $wgOut->readOnlyPage( $this->mArticle->getContent( true ) );
 175                         }
 176                         return;
 177                 }
 178                 if ( $this->save ) {
 179                         $this->editForm( 'save' );
 180                 } else if ( $this->preview ) {
 181                         $this->editForm( 'preview' );
 182                 } else if ( $this->diff ) {
 183                         $this->editForm( 'diff' );
 184                 } else { # First time through
 185                         if( $wgUser->getOption('previewonfirst') ) {
 186                                 $this->editForm( 'preview', true );
 187                         } else {
 188                                 $this->extractMetaDataFromArticle () ;
 189                                 $this->editForm( 'initial', true );
 190                         }
 191                 }
 192         }
 193
 194         /**
 195          * @todo document
 196          */
 197         function importFormData( &$request ) {
 198                 if( $request->wasPosted() ) {
 199                         # These fields need to be checked for encoding.
 200                         # Also remove trailing whitespace, but don't remove _initial_
 201                         # whitespace from the text boxes. This may be significant formatting.
 202                         $this->textbox1  = rtrim( $request->getText( 'wpTextbox1' ) );
 203                         $this->textbox2  = rtrim( $request->getText( 'wpTextbox2' ) );
 204                         $this->mMetaData = rtrim( $request->getText( 'metadata'   ) );
 205                         $this->summary   =        $request->getText( 'wpSummary'  );
 206
 207                         $this->edittime = $request->getVal( 'wpEdittime' );
 208                         if( is_null( $this->edittime ) ) {
 209                                 # If the form is incomplete, force to preview.
 210                                 $this->preview  = true;
 211                         } else {
 212                                 if( $this->tokenOk( $request ) ) {
 213                                         # Some browsers will not report any submit button
 214                                         # if the user hits enter in the comment box.
 215                                         # The unmarked state will be assumed to be a save,
 216                                         # if the form seems otherwise complete.
 217                                         $this->preview = $request->getCheck( 'wpPreview' );
 218                                         $this->diff = $request->getCheck( 'wpDiff' );
 219                                 } else {
 220                                         # Page might be a hack attempt posted from
 221                                         # an external site. Preview instead of saving.
 222                                         $this->preview = true;
 223                                 }
 224                         }
 225                         $this->save    = ! ( $this->preview OR $this->diff );
 226                         if( !preg_match( '/^\d{14}$/', $this->edittime )) {
 227                                 $this->edittime = null;
 228                         }
 229
 230                         $this->minoredit = $request->getCheck( 'wpMinoredit' );
 231                         $this->watchthis = $request->getCheck( 'wpWatchthis' );
 232                 } else {
 233                         # Not a posted form? Start with nothing.
 234                         $this->textbox1  = '';
 235                         $this->textbox2  = '';
 236                         $this->mMetaData = '';
 237                         $this->summary   = '';
 238                         $this->edittime  = '';
 239                         $this->preview   = false;
 240                         $this->save      = false;
 241                         $this->diff      = false;
 242                         $this->minoredit = false;
 243                         $this->watchthis = false;
 244                 }
 245
 246                 $this->oldid = $request->getInt( 'oldid' );
 247
 248                 # Section edit can come from either the form or a link
 249                 $this->section = $request->getVal( 'wpSection', $request->getVal( 'section' ) );
 250
 251                 $this->live = $request->getCheck( 'live' );
 252         }
 253
 254         /**
 255          * Make sure the form isn't faking a user's credentials.
 256          *
 257          * @param WebRequest $request
 258          * @return bool
 259          * @access private
 260          */
 261         function tokenOk( &$request ) {
 262                 global $wgUser;
 263                 if( $wgUser->isAnon() ) {
 264                         # Anonymous users may not have a session
 265                         # open. Don't tokenize.
 266                         return true;
 267                 } else {
 268                         return $wgUser->matchEditToken( $request->getVal( 'wpEditToken' ) );
 269                 }
 270         }
 271
 272         function submit() {
 273                 $this->edit();
 274         }
 275
 276         /**
 277          * The edit form is self-submitting, so that when things like
 278          * preview and edit conflicts occur, we get the same form back
 279          * with the extra stuff added.  Only when the final submission
 280          * is made and all is well do we actually save and redirect to
 281          * the newly-edited page.
 282          *
 283          * @param string $formtype Type of form either : save, initial, diff or preview
 284          * @param bool $firsttime True to load form data from db
 285          */
 286         function editForm( $formtype, $firsttime = false ) {
 287                 global $wgOut, $wgUser;
 288                 global $wgLang, $wgContLang, $wgParser, $wgTitle;
 289                 global $wgAllowAnonymousMinor;
 290                 global $wgSpamRegex, $wgFilterCallback;
 291
 292                 $sk = $wgUser->getSkin();
 293                 $isConflict = false;
 294                 // css / js subpages of user pages get a special treatment
 295                 $isCssJsSubpage = $wgTitle->isCssJsSubpage();
 296
 297
 298                 if(!$this->mTitle->getArticleID()) { # new article
 299                         $wgOut->addWikiText(wfmsg('newarticletext'));
 300                 }
 301
 302                 if( $this->mTitle->isTalkPage() ) {
 303                         $wgOut->addWikiText(wfmsg('talkpagetext'));
 304                 }
 305
 306                 # Attempt submission here.  This will check for edit conflicts,
 307                 # and redundantly check for locked database, blocked IPs, etc.
 308                 # that edit() already checked just in case someone tries to sneak
 309                 # in the back door with a hand-edited submission URL.
 310
 311                 if ( 'save' == $formtype ) {
 312                         # Reintegrate metadata
 313                         if ( $this->mMetaData != '' ) $this->textbox1 .= "\n" . $this->mMetaData ;
 314                         $this->mMetaData = '' ;
 315
 316                         # Check for spam
 317                         if ( $wgSpamRegex && preg_match( $wgSpamRegex, $this->textbox1, $matches ) ) {
 318                                 $this->spamPage ( $matches[0] );
 319                                 return;
 320                         }
 321                         if ( $wgFilterCallback && $wgFilterCallback( $this->mTitle, $this->textbox1, $this->section ) ) {
 322                                 # Error messages or other handling should be performed by the filter function
 323                                 return;
 324                         }
 325                         if ( $wgUser->isBlocked( false ) ) {
 326                                 # Check block state against master, thus 'false'.
 327                                 $this->blockedIPpage();
 328                                 return;
 329                         }
 330
 331                         if ( !$wgUser->isAllowed('edit') ) {
 332                                 if ( $wgUser->isAnon() ) {
 333                                 $this->userNotLoggedInPage();
 334                                 return;
 335                         }
 336                                 else {
 337                                         $wgOut->readOnlyPage();
 338                                         return;
 339                                 }
 340                         }
 341
 342                         if ( wfReadOnly() ) {
 343                                 $wgOut->readOnlyPage();
 344                                 return;
 345                         }
 346                         if ( $wgUser->pingLimiter() ) {
 347                                 $wgOut->rateLimited();
 348                                 return;
 349                         }
 350
 351                         # If article is new, insert it.
 352                         $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
 353                         if ( 0 == $aid ) {
 354                                 # Don't save a new article if it's blank.
 355                                 if ( ( '' == $this->textbox1 ) ||
 356                                   ( wfMsg( 'newarticletext' ) == $this->textbox1 ) ) {
 357                                         $wgOut->redirect( $this->mTitle->getFullURL() );
 358                                         return;
 359                                 }
 360                                 if (wfRunHooks('ArticleSave', array(&$this->mArticle, &$wgUser, &$this->textbox1,
 361                                                            &$this->summary, &$this->minoredit, &$this->watchthis, NULL)))
 362                                 {
 363                                         $this->mArticle->insertNewArticle( $this->textbox1, $this->summary,
 364                                                                                                            $this->minoredit, $this->watchthis );
 365                                         wfRunHooks('ArticleSaveComplete', array(&$this->mArticle, &$wgUser, $this->textbox1,
 366                                                                                                                         $this->summary, $this->minoredit,
 367                                                                                                                         $this->watchthis, NULL));
 368                                 }
 369                                 return;
 370                         }
 371
 372                         # Article exists. Check for edit conflict.
 373
 374                         $this->mArticle->clear(); # Force reload of dates, etc.
 375                         $this->mArticle->forUpdate( true ); # Lock the article
 376
 377                         if( ( $this->section != 'new' ) &&
 378                                 ($this->mArticle->getTimestamp() != $this->edittime ) ) {
 379                                 $isConflict = true;
 380                         }
 381                         $userid = $wgUser->getID();
 382
 383                         if ( $isConflict) {
 384                                 wfDebug( "EditPage::editForm conflict! getting section '$this->section' for time '$this->edittime'\n" );
 385                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 386                                         $this->section, $this->textbox1, $this->summary, $this->edittime);
 387                         }
 388                         else {
 389                                 wfDebug( "EditPage::editForm getting section '$this->section'\n" );
 390                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 391                                         $this->section, $this->textbox1, $this->summary);
 392                         }
 393                         # Suppress edit conflict with self
 394
 395                         if ( ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
 396                                 $isConflict = false;
 397                         } else {
 398                                 # switch from section editing to normal editing in edit conflict
 399                                 if($isConflict) {
 400                                         # Attempt merge
 401                                         if( $this->mergeChangesInto( $text ) ){
 402                                                 // Successful merge! Maybe we should tell the user the good news?
 403                                                 $isConflict = false;
 404                                         } else {
 405                                                 $this->section = '';
 406                                                 $this->textbox1 = $text;
 407                                         }
 408                                 }
 409                         }
 410                         if ( ! $isConflict ) {
 411                                 # All's well
 412                                 $sectionanchor = '';
 413                                 if( $this->section == 'new' ) {
 414                                         if( $this->summary != '' ) {
 415                                                 $sectionanchor = $this->sectionAnchor( $this->summary );
 416                                         }
 417                                 } elseif( $this->section != '' ) {
 418                                         # Try to get a section anchor from the section source, redirect to edited section if header found
 419                                         # XXX: might be better to integrate this into Article::getTextOfLastEditWithSectionReplacedOrAdded
 420                                         # for duplicate heading checking and maybe parsing
 421                                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
 422                                         # we can't deal with anchors, includes, html etc in the header for now,
 423                                         # headline would need to be parsed to improve this
 424                                         #if($hasmatch and strlen($matches[2]) > 0 and !preg_match( "/[\\['{<>]/", $matches[2])) {
 425                                         if($hasmatch and strlen($matches[2]) > 0) {
 426                                                 $sectionanchor = $this->sectionAnchor( $matches[2] );
 427                                         }
 428                                 }
 429
 430                                 if (wfRunHooks('ArticleSave', array(&$this->mArticle, &$wgUser, &$text,
 431                                                                                                         &$this->summary, &$this->minoredit,
 432                                                                                                         &$this->watchthis, &$sectionanchor)))
 433                                 {
 434                                         # update the article here
 435                                         if($this->mArticle->updateArticle( $text, $this->summary, $this->minoredit,
 436                                                                                                            $this->watchthis, '', $sectionanchor ))
 437                                         {
 438                                                 wfRunHooks('ArticleSaveComplete', array(&$this->mArticle, &$wgUser, $text,
 439                                                                                                                                 $this->summary, $this->minoredit,
 440                                                                                                                                 $this->watchthis, $sectionanchor));
 441                                                 return;
 442                                         }
 443                                         else
 444                                           $isConflict = true;
 445                                 }
 446                         }
 447                 }
 448                 # First time through: get contents, set time for conflict
 449                 # checking, etc.
 450
 451                 if ( 'initial' == $formtype || $firsttime ) {
 452                         $this->edittime = $this->mArticle->getTimestamp();
 453                         $this->textbox1 = $this->mArticle->getContent( true );
 454                         $this->summary = '';
 455                         $this->proxyCheck();
 456                 }
 457                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 458
 459                 # Enabled article-related sidebar, toplinks, etc.
 460                 $wgOut->setArticleRelated( true );
 461
 462                 if ( $isConflict ) {
 463                         $s = wfMsg( 'editconflict', $this->mTitle->getPrefixedText() );
 464                         $wgOut->setPageTitle( $s );
 465                         $wgOut->addWikiText( wfMsg( 'explainconflict' ) );
 466
 467                         $this->textbox2 = $this->textbox1;
 468                         $this->textbox1 = $this->mArticle->getContent( true );
 469                         $this->edittime = $this->mArticle->getTimestamp();
 470                 } else {
 471
 472                         if( $this->section != '' ) {
 473                                 if( $this->section == 'new' ) {
 474                                         $s = wfMsg('editingcomment', $this->mTitle->getPrefixedText() );
 475                                 } else {
 476                                         $s = wfMsg('editingsection', $this->mTitle->getPrefixedText() );
 477                                 }
 478                                 if(!$this->preview) {
 479                                         preg_match( "/^(=+)(.+)\\1/mi",
 480                                                 $this->textbox1,
 481                                                 $matches );
 482                                         if( !empty( $matches[2] ) ) {
 483                                                 $this->summary = "/* ". trim($matches[2])." */ ";
 484                                         }
 485                                 }
 486                         } else {
 487                                 $s = wfMsg( 'editing', $this->mTitle->getPrefixedText() );
 488                         }
 489                         $wgOut->setPageTitle( $s );
 490                         if ( !$this->checkUnicodeCompliantBrowser() ) {
 491                                 $this->mArticle->setOldSubtitle();
 492                                 $wgOut->addWikiText( wfMsg( 'nonunicodebrowser') );
 493                         }
 494                         if ( $this->oldid ) {
 495                                 $this->mArticle->setOldSubtitle();
 496                                 $wgOut->addWikiText( wfMsg( 'editingold' ) );
 497                         }
 498                 }
 499
 500                 if( wfReadOnly() ) {
 501                         $wgOut->addWikiText( wfMsg( 'readonlywarning' ) );
 502                 } else if ( $isCssJsSubpage and 'preview' != $formtype) {
 503                         $wgOut->addWikiText( wfMsg( 'usercssjsyoucanpreview' ));
 504                 }
 505                 if( $this->mTitle->isProtected('edit') ) {
 506                         $wgOut->addWikiText( wfMsg( 'protectedpagewarning' ) );
 507                 }
 508
 509                 $kblength = (int)(strlen( $this->textbox1 ) / 1024);
 510                 if( $kblength > 29 ) {
 511                         $wgOut->addWikiText( wfMsg( 'longpagewarning', $wgLang->formatNum( $kblength ) ) );
 512                 }
 513
 514                 $rows = $wgUser->getOption( 'rows' );
 515                 $cols = $wgUser->getOption( 'cols' );
 516
 517                 $ew = $wgUser->getOption( 'editwidth' );
 518                 if ( $ew ) $ew = " style=\"width:100%\"";
 519                 else $ew = '';
 520
 521                 $q = 'action=submit';
 522                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
 523                 $action = $this->mTitle->escapeLocalURL( $q );
 524
 525                 $summary = wfMsg('summary');
 526                 $subject = wfMsg('subject');
 527                 $minor   = wfMsg('minoredit');
 528                 $watchthis = wfMsg ('watchthis');
 529                 $save = wfMsg('savearticle');
 530                 $prev = wfMsg('showpreview');
 531                 $diff = wfMsg('showdiff');
 532
 533                 $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
 534                                 wfMsg('cancel') );
 535                 $edithelpurl = $sk->makeUrl( wfMsg( 'edithelppage' ));
 536                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
 537                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
 538                         htmlspecialchars( wfMsg( 'newwindow' ) );
 539
 540                 global $wgRightsText;
 541                 $copywarn = "<div id=\"editpage-copywarn\">\n" .
 542                         wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
 543                                 '[[' . wfMsgForContent( 'copyrightpage' ) . ']]',
 544                                 $wgRightsText ) . "\n</div>";
 545
 546                 if( $wgUser->getOption('showtoolbar') and !$isCssJsSubpage ) {
 547                         # prepare toolbar for edit buttons
 548                         $toolbar = $this->getEditToolbar();
 549                 } else {
 550                         $toolbar = '';
 551                 }
 552
 553                 // activate checkboxes if user wants them to be always active
 554                 if( !$this->preview && !$this->diff ) {
 555                         if( $wgUser->getOption( 'watchdefault' ) ) $this->watchthis = true;
 556                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
 557
 558                         // activate checkbox also if user is already watching the page,
 559                         // require wpWatchthis to be unset so that second condition is not
 560                         // checked unnecessarily
 561                         if( !$this->watchthis && $this->mTitle->userIsWatching() ) $this->watchthis = true;
 562                 }
 563
 564                 $minoredithtml = '';
 565
 566                 if ( $wgUser->isLoggedIn() || $wgAllowAnonymousMinor ) {
 567                         $minoredithtml =
 568                                 "<input tabindex='3' type='checkbox' value='1' name='wpMinoredit'".($this->minoredit?" checked='checked'":"").
 569                                 " accesskey='".wfMsg('accesskey-minoredit')."' id='wpMinoredit' />".
 570                                 "<label for='wpMinoredit' title='".wfMsg('tooltip-minoredit')."'>{$minor}</label>";
 571                 }
 572
 573                 $watchhtml = '';
 574
 575                 if ( $wgUser->isLoggedIn() ) {
 576                         $watchhtml = "<input tabindex='4' type='checkbox' name='wpWatchthis'".($this->watchthis?" checked='checked'":"").
 577                                 " accesskey='".wfMsg('accesskey-watch')."' id='wpWatchthis'  />".
 578                                 "<label for='wpWatchthis' title='".wfMsg('tooltip-watch')."'>{$watchthis}</label>";
 579                 }
 580
 581                 $checkboxhtml = $minoredithtml . $watchhtml . '<br />';
 582
 583                 $wgOut->addHTML( '<div id="wikiPreview">' );
 584                 if ( 'preview' == $formtype) {
 585                         $previewOutput = $this->getPreviewText( $isConflict, $isCssJsSubpage );
 586                         if ( $wgUser->getOption('previewontop' ) ) {
 587                                 $wgOut->addHTML( $previewOutput );
 588                                 $wgOut->addHTML( "<br style=\"clear:both;\" />\n" );
 589                         }
 590                 }
 591                 $wgOut->addHTML( '</div>' );
 592                 if ( 'diff' == $formtype ) {
 593                         if ( $wgUser->getOption('previewontop' ) ) {
 594                                 $wgOut->addHTML( $this->getDiff() );
 595                         }
 596                 }
 597
 598
 599                 # if this is a comment, show a subject line at the top, which is also the edit summary.
 600                 # Otherwise, show a summary field at the bottom
 601                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
 602                         if( $this->section == 'new' ) {
 603                                 $commentsubject="{$subject}: <input tabindex='1' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 604                                 $editsummary = '';
 605                         } else {
 606                                 $commentsubject = '';
 607                                 $editsummary="{$summary}: <input tabindex='2' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 608                         }
 609
 610                 if( !$this->preview && !$this->diff ) {
 611                 # Don't select the edit box on preview; this interferes with seeing what's going on.
 612                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
 613                 }
 614                 # Prepare a list of templates used by this page
 615                 $templates = '';
 616                 $articleTemplates = $this->mArticle->getUsedTemplates();
 617                 if ( count( $articleTemplates ) > 0 ) {
 618                         $templates = '<br />'. wfMsg( 'templatesused' ) . '<ul>';
 619                         foreach ( $articleTemplates as $tpl ) {
 620                                 if ( $titleObj = Title::makeTitle( NS_TEMPLATE, $tpl ) ) {
 621                                         $templates .= '<li>' . $sk->makeLinkObj( $titleObj ) . '</li>';
 622                                 }
 623                         }
 624                         $templates .= '</ul>';
 625                 }
 626
 627                 global $wgLivePreview, $wgStylePath;
 628                 /**
 629                  * Live Preview lets us fetch rendered preview page content and
 630                  * add it to the page without refreshing the whole page.
 631                  * Set up the button for it; if not supported by the browser
 632                  * it will fall through to the normal form submission method.
 633                  */
 634                 if( $wgLivePreview ) {
 635                         global $wgJsMimeType;
 636                         $wgOut->addHTML( '<script type="'.$wgJsMimeType.'" src="' .
 637                                 htmlspecialchars( $wgStylePath . '/common/preview.js' ) .
 638                                 '"></script>' . "\n" );
 639                         $liveAction = $wgTitle->getLocalUrl( 'action=submit&wpPreview=true&live=true' );
 640                         $liveOnclick = 'onclick="return !livePreview('.
 641                                 'getElementById(\'wikiPreview\'),' .
 642                                 'editform.wpTextbox1.value,' .
 643                                 htmlspecialchars( '"' . $liveAction . '"' ) . ')"';
 644                 } else {
 645                         $liveOnclick = '';
 646                 }
 647
 648                 global $wgUseMetadataEdit ;
 649                 if ( $wgUseMetadataEdit )
 650                 {
 651                         $metadata = $this->mMetaData ;
 652                         $metadata = htmlspecialchars( $wgContLang->recodeForEdit( $metadata ) ) ;
 653                         $helppage = Title::newFromText ( wfmsg("metadata_page") ) ;
 654                         $top = str_replace ( "$1" , $helppage->getInternalURL() , wfmsg("metadata") ) ;
 655                         $metadata = $top . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
 656                 }
 657                 else $metadata = "" ;
 658
 659
 660                 $wgOut->addHTML( <<<END
 661 {$toolbar}
 662 <form id="editform" name="editform" method="post" action="$action"
 663 enctype="multipart/form-data">
 664 {$commentsubject}
 665 <textarea tabindex='1' accesskey="," name="wpTextbox1" rows='{$rows}'
 666 cols='{$cols}'{$ew}>
 667 END
 668 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox1 ) ) .
 669 "
 670 </textarea>
 671 {$metadata}
 672 <br />{$editsummary}
 673 {$checkboxhtml}
 674 <input tabindex='5' id='wpSave' type='submit' value=\"{$save}\" name=\"wpSave\" accesskey=\"".wfMsg('accesskey-save')."\"".
 675 " title=\"".wfMsg('tooltip-save')."\"/>
 676 <input tabindex='6' id='wpPreview' type='submit' $liveOnclick value=\"{$prev}\" name=\"wpPreview\" accesskey=\"".wfMsg('accesskey-preview')."\"".
 677 " title=\"".wfMsg('tooltip-preview')."\"/>
 678 <input tabindex='7' id='wpDiff' type='submit' value=\"{$diff}\" name=\"wpDiff\" accesskey=\"".wfMsg('accesskey-diff')."\"".
 679 " title=\"".wfMsg('tooltip-diff')."\"/>
 680 <em>{$cancel}</em> | <em>{$edithelp}</em>{$templates}" );
 681                 $wgOut->addWikiText( $copywarn );
 682                 $wgOut->addHTML( "
 683 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
 684 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n" );
 685
 686                 if ( $wgUser->isLoggedIn() ) {
 687                         /**
 688                          * To make it harder for someone to slip a user a page
 689                          * which submits an edit form to the wiki without their
 690                          * knowledge, a random token is associated with the login
 691                          * session. If it's not passed back with the submission,
 692                          * we won't save the page, or render user JavaScript and
 693                          * CSS previews.
 694                          */
 695                         $token = htmlspecialchars( $wgUser->editToken() );
 696                         $wgOut->addHTML( "
 697 <input type='hidden' value=\"$token\" name=\"wpEditToken\" />\n" );
 698                 }
 699
 700
 701                 if ( $isConflict ) {
 702                         require_once( "DifferenceEngine.php" );
 703                         $wgOut->addWikiText( '==' . wfMsg( "yourdiff" ) . '==' );
 704                         DifferenceEngine::showDiff( $this->textbox2, $this->textbox1,
 705                           wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
 706
 707                         $wgOut->addWikiText( '==' . wfMsg( "yourtext" ) . '==' );
 708                         $wgOut->addHTML( "<textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
 709 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox2 ) ) .
 710 "
 711 </textarea>" );
 712                 }
 713                 $wgOut->addHTML( "</form>\n" );
 714                 if ( $formtype == 'preview' && !$wgUser->getOption( 'previewontop' ) ) {
 715                         $wgOut->addHTML( '<div id="wikiPreview">' . $previewOutput . '</div>' );
 716                 }
 717                 if ( $formtype == 'diff' && !$wgUser->getOption( 'previewontop' ) ) {
 718                         #$wgOut->addHTML( '<div id="wikiPreview">' . $difftext . '</div>' );
 719                         $wgOut->addHTML( $this->getDiff() );
 720                 }
 721         }
 722
 723         /**
 724          * @todo document
 725          */
 726         function getPreviewText( $isConflict, $isCssJsSubpage ) {
 727                 global $wgOut, $wgUser, $wgTitle, $wgParser, $wgAllowDiffPreview, $wgEnableDiffPreviewPreference;
 728                 $previewhead = '<h2>' . htmlspecialchars( wfMsg( 'preview' ) ) . "</h2>\n" .
 729                         "<p class='previewnote'>" . htmlspecialchars( wfMsg( 'previewnote' ) ) . "</p>\n";
 730                 if ( $isConflict ) {
 731                         $previewhead.='<h2>' . htmlspecialchars( wfMsg( 'previewconflict' ) ) .
 732                                 "</h2>\n";
 733                 }
 734
 735                 $parserOptions = ParserOptions::newFromUser( $wgUser );
 736                 $parserOptions->setEditSection( false );
 737
 738                 # don't parse user css/js, show message about preview
 739                 # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
 740
 741                 if ( $isCssJsSubpage ) {
 742                         if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
 743                                 $previewtext = wfMsg('usercsspreview');
 744                         } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
 745                                 $previewtext = wfMsg('userjspreview');
 746                         }
 747                         $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
 748                         $wgOut->addHTML( $parserOutput->mText );
 749                         return $previewhead;
 750                 } else {
 751                         # if user want to see preview when he edit an article
 752                         if( $wgUser->getOption('previewonfirst') and ($this->textbox1 == '')) {
 753                                 $this->textbox1 = $this->mArticle->getContent(true);
 754                         }
 755
 756                         $toparse = $this->textbox1 ;
 757                         if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData ;
 758
 759                         $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ) ."\n\n",
 760                                         $wgTitle, $parserOptions );
 761
 762                         $previewHTML = $parserOutput->mText;
 763
 764                         $wgOut->addCategoryLinks($parserOutput->getCategoryLinks());
 765                         $wgOut->addLanguageLinks($parserOutput->getLanguageLinks());
 766                         return $previewhead . $previewHTML;
 767                 }
 768         }
 769
 770         /**
 771          * @todo document
 772          */
 773         function blockedIPpage() {
 774                 global $wgOut, $wgUser, $wgContLang, $wgIP;
 775
 776                 $wgOut->setPageTitle( wfMsg( 'blockedtitle' ) );
 777                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 778                 $wgOut->setArticleRelated( false );
 779
 780                 $id = $wgUser->blockedBy();
 781                 $reason = $wgUser->blockedFor();
 782                 $ip = $wgIP;
 783
 784                 if ( is_numeric( $id ) ) {
 785                         $name = User::whoIs( $id );
 786                 } else {
 787                         $name = $id;
 788                 }
 789                 $link = '[[' . $wgContLang->getNsText( NS_USER ) .
 790                   ":{$name}|{$name}]]";
 791
 792                 $wgOut->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name ) );
 793                 $wgOut->returnToMain( false );
 794         }
 795
 796         /**
 797          * @todo document
 798          */
 799         function userNotLoggedInPage() {
 800                 global $wgOut;
 801
 802                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
 803                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 804                 $wgOut->setArticleRelated( false );
 805
 806                 $wgOut->addWikiText( wfMsg( 'whitelistedittext' ) );
 807                 $wgOut->returnToMain( false );
 808         }
 809
 810         /**
 811          * @todo document
 812          */
 813         function spamPage ( $match = false )
 814         {
 815                 global $wgOut;
 816                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
 817                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 818                 $wgOut->setArticleRelated( false );
 819
 820                 $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
 821                 if ( $match ) {
 822                         $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$match}</nowiki>" ) );
 823                 }
 824                 $wgOut->returnToMain( false );
 825         }
 826
 827         /**
 828          * Forks processes to scan the originating IP for an open proxy server
 829          * MemCached can be used to skip IPs that have already been scanned
 830          */
 831         function proxyCheck() {
 832                 global $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath;
 833                 global $wgIP, $wgUseMemCached, $wgMemc, $wgDBname, $wgProxyMemcExpiry;
 834
 835                 if ( !$wgBlockOpenProxies ) {
 836                         return;
 837                 }
 838
 839                 # Get MemCached key
 840                 $skip = false;
 841                 if ( $wgUseMemCached ) {
 842                         $mcKey = $wgDBname.':proxy:ip:'.$wgIP;
 843                         $mcValue = $wgMemc->get( $mcKey );
 844                         if ( $mcValue ) {
 845                                 $skip = true;
 846                         }
 847                 }
 848
 849                 # Fork the processes
 850                 if ( !$skip ) {
 851                         $title = Title::makeTitle( NS_SPECIAL, 'Blockme' );
 852                         $iphash = md5( $wgIP . $wgProxyKey );
 853                         $url = $title->getFullURL( 'ip='.$iphash );
 854
 855                         foreach ( $wgProxyPorts as $port ) {
 856                                 $params = implode( ' ', array(
 857                                                         escapeshellarg( $wgProxyScriptPath ),
 858                                                         escapeshellarg( $wgIP ),
 859                                                         escapeshellarg( $port ),
 860                                                         escapeshellarg( $url )
 861                                                         ));
 862                                 exec( "php $params &>/dev/null &" );
 863                         }
 864                         # Set MemCached key
 865                         if ( $wgUseMemCached ) {
 866                                 $wgMemc->set( $mcKey, 1, $wgProxyMemcExpiry );
 867                         }
 868                 }
 869         }
 870
 871         /**
 872          * @access private
 873          * @todo document
 874          */
 875         function mergeChangesInto( &$text ){
 876                 $yourtext = $this->mArticle->fetchRevisionText();
 877
 878                 $db =& wfGetDB( DB_MASTER );
 879                 $oldText = $this->mArticle->fetchRevisionText(
 880                         $db->timestamp( $this->edittime ),
 881                         'rev_timestamp' );
 882
 883                 if(wfMerge($oldText, $text, $yourtext, $result)){
 884                         $text = $result;
 885                         return true;
 886                 } else {
 887                         return false;
 888                 }
 889         }
 890
 891
 892         function checkUnicodeCompliantBrowser() {
 893                 global $wgBrowserBlackList;
 894                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
 895                 foreach ( $wgBrowserBlackList as $browser ) {
 896                         if ( preg_match($browser, $currentbrowser) ) {
 897                                 return false;
 898                         }
 899                 }
 900                 return true;
 901         }
 902
 903         /**
 904          * Format an anchor fragment as it would appear for a given section name
 905          * @param string $text
 906          * @return string
 907          * @access private
 908          */
 909         function sectionAnchor( $text ) {
 910                 $headline = Sanitizer::decodeCharReferences( $text );
 911                 # strip out HTML
 912                 $headline = preg_replace( '/<.*?' . '>/', '', $headline );
 913                 $headline = trim( $headline );
 914                 $sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
 915                 $replacearray = array(
 916                         '%3A' => ':',
 917                         '%' => '.'
 918                 );
 919                 return str_replace(
 920                         array_keys( $replacearray ),
 921                         array_values( $replacearray ),
 922                         $sectionanchor );
 923         }
 924
 925         /**
 926          * Shows a bulletin board style toolbar for common editing functions.
 927          * It can be disabled in the user preferences.
 928          * The necessary JavaScript code can be found in style/wikibits.js.
 929          */
 930         function getEditToolbar() {
 931                 global $wgStylePath, $wgLang, $wgMimeType, $wgJsMimeType;
 932
 933                 /**
 934                  * toolarray an array of arrays which each include the filename of
 935                  * the button image (without path), the opening tag, the closing tag,
 936                  * and optionally a sample text that is inserted between the two when no
 937                  * selection is highlighted.
 938                  * The tip text is shown when the user moves the mouse over the button.
 939                  *
 940                  * Already here are accesskeys (key), which are not used yet until someone
 941                  * can figure out a way to make them work in IE. However, we should make
 942                  * sure these keys are not defined on the edit page.
 943                  */
 944                 $toolarray=array(
 945                         array(  'image'=>'button_bold.png',
 946                                         'open'  =>      "\'\'\'",
 947                                         'close' =>      "\'\'\'",
 948                                         'sample'=>      wfMsg('bold_sample'),
 949                                         'tip'   =>      wfMsg('bold_tip'),
 950                                         'key'   =>      'B'
 951                                 ),
 952                         array(  'image'=>'button_italic.png',
 953                                         'open'  =>      "\'\'",
 954                                         'close' =>      "\'\'",
 955                                         'sample'=>      wfMsg('italic_sample'),
 956                                         'tip'   =>      wfMsg('italic_tip'),
 957                                         'key'   =>      'I'
 958                                 ),
 959                         array(  'image'=>'button_link.png',
 960                                         'open'  =>      '[[',
 961                                         'close' =>      ']]',
 962                                         'sample'=>      wfMsg('link_sample'),
 963                                         'tip'   =>      wfMsg('link_tip'),
 964                                         'key'   =>      'L'
 965                                 ),
 966                         array(  'image'=>'button_extlink.png',
 967                                         'open'  =>      '[',
 968                                         'close' =>      ']',
 969                                         'sample'=>      wfMsg('extlink_sample'),
 970                                         'tip'   =>      wfMsg('extlink_tip'),
 971                                         'key'   =>      'X'
 972                                 ),
 973                         array(  'image'=>'button_headline.png',
 974                                         'open'  =>      "\\n== ",
 975                                         'close' =>      " ==\\n",
 976                                         'sample'=>      wfMsg('headline_sample'),
 977                                         'tip'   =>      wfMsg('headline_tip'),
 978                                         'key'   =>      'H'
 979                                 ),
 980                         array(  'image'=>'button_image.png',
 981                                         'open'  =>      '[['.$wgLang->getNsText(NS_IMAGE).":",
 982                                         'close' =>      ']]',
 983                                         'sample'=>      wfMsg('image_sample'),
 984                                         'tip'   =>      wfMsg('image_tip'),
 985                                         'key'   =>      'D'
 986                                 ),
 987                         array(  'image' =>'button_media.png',
 988                                         'open'  =>      '[['.$wgLang->getNsText(NS_MEDIA).':',
 989                                         'close' =>      ']]',
 990                                         'sample'=>      wfMsg('media_sample'),
 991                                         'tip'   =>      wfMsg('media_tip'),
 992                                         'key'   =>      'M'
 993                                 ),
 994                         array(  'image' =>'button_math.png',
 995                                         'open'  =>      "\\<math\\>",
 996                                         'close' =>      "\\</math\\>",
 997                                         'sample'=>      wfMsg('math_sample'),
 998                                         'tip'   =>      wfMsg('math_tip'),
 999                                         'key'   =>      'C'
1000                                 ),
1001                         array(  'image' =>'button_nowiki.png',
1002                                         'open'  =>      "\\<nowiki\\>",
1003                                         'close' =>      "\\</nowiki\\>",
1004                                         'sample'=>      wfMsg('nowiki_sample'),
1005                                         'tip'   =>      wfMsg('nowiki_tip'),
1006                                         'key'   =>      'N'
1007                                 ),
1008                         array(  'image' =>'button_sig.png',
1009                                         'open'  =>      '--~~~~',
1010                                         'close' =>      '',
1011                                         'sample'=>      '',
1012                                         'tip'   =>      wfMsg('sig_tip'),
1013                                         'key'   =>      'Y'
1014                                 ),
1015                         array(  'image' =>'button_hr.png',
1016                                         'open'  =>      "\\n----\\n",
1017                                         'close' =>      '',
1018                                         'sample'=>      '',
1019                                         'tip'   =>      wfMsg('hr_tip'),
1020                                         'key'   =>      'R'
1021                                 )
1022                 );
1023                 $toolbar ="<script type='$wgJsMimeType'>\n/*<![CDATA[*/\n";
1024
1025                 $toolbar.="document.writeln(\"<div id='toolbar'>\");\n";
1026                 foreach($toolarray as $tool) {
1027
1028                         $image=$wgStylePath.'/common/images/'.$tool['image'];
1029                         $open=$tool['open'];
1030                         $close=$tool['close'];
1031                         $sample = wfEscapeJsString( $tool['sample'] );
1032
1033                         // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
1034                         // Older browsers show a "speedtip" type message only for ALT.
1035                         // Ideally these should be different, realistically they
1036                         // probably don't need to be.
1037                         $tip = wfEscapeJsString( $tool['tip'] );
1038
1039                         #$key = $tool["key"];
1040
1041                         $toolbar.="addButton('$image','$tip','$open','$close','$sample');\n";
1042                 }
1043
1044                 $toolbar.="addInfobox('" . wfEscapeJsString( wfMsg( "infobox" ) ) .
1045                         "','" . wfEscapeJsString( wfMsg( "infobox_alert" ) ) . "');\n";
1046                 $toolbar.="document.writeln(\"</div>\");\n";
1047
1048                 $toolbar.="/*]]>*/\n</script>";
1049                 return $toolbar;
1050         }
1051
1052         /**
1053          * Output preview text only. This can be sucked into the edit page
1054          * via JavaScript, and saves the server time rendering the skin as
1055          * well as theoretically being more robust on the client (doesn't
1056          * disturb the edit box's undo history, won't eat your text on
1057          * failure, etc).
1058          *
1059          * @todo This doesn't include category or interlanguage links.
1060          *       Would need to enhance it a bit, maybe wrap them in XML
1061          *       or something... that might also require more skin
1062          *       initialization, so check whether that's a problem.
1063          */
1064         function livePreview() {
1065                 global $wgOut;
1066                 $wgOut->disable();
1067                 header( 'Content-type: text/xml' );
1068                 header( 'Cache-control: no-cache' );
1069                 # FIXME
1070                 echo $this->getPreviewText( false, false );
1071         }
1072
1073
1074         /**
1075          * Get a diff between the current contents of the edit box and the
1076          * version of the page we're editing from.
1077          *
1078          * If this is a section edit, we'll replace the section as for final
1079          * save and then make a comparison.
1080          *
1081          * @return string HTML
1082          */
1083         function getDiff() {
1084                 require_once( 'DifferenceEngine.php' );
1085                 $oldtext = $this->mArticle->getContent( true );
1086                 $newtext = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
1087                         $this->section, $this->textbox1, $this->summary, $this->edittime );
1088                 $oldtitle = wfMsg( 'currentrev' );
1089                 $newtitle = wfMsg( 'yourtext' );
1090                 if ( $oldtext != wfMsg( 'noarticletext' ) || $newtext != '' ) {
1091                         $difftext = DifferenceEngine::getDiff( $oldtext, $newtext, $oldtitle, $newtitle );
1092                 }
1093
1094                 return '<div id="wikiDiff">' . $difftext . '</div>';
1095         }
1096
1097 }
1098
1099 ?>