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