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                 global $wgUseMetadataEdit , $wgMetadataWhitelist , $wgLang ;
  45                 $this->mMetaData = '' ;
  46                 if ( !$wgUseMetadataEdit ) return ;
  47                 if ( $wgMetadataWhitelist == '' ) return ;
  48                 $s = '' ;
  49                 $t = $this->mArticle->getContent ( true ) ;
  50
  51                 # MISSING : <nowiki> filtering
  52
  53                 # Categories and language links
  54                 $t = explode ( "\n" , $t ) ;
  55                 $catlow = strtolower ( $wgLang->getNsText ( NS_CATEGORY ) ) ;
  56                 $cat = $ll = array() ;
  57                 foreach ( $t AS $key => $x )
  58                 {
  59                         $y = trim ( strtolower ( $x ) ) ;
  60                         while ( substr ( $y , 0 , 2 ) == '[[' )
  61                         {
  62                                 $y = explode ( ']]' , trim ( $x ) ) ;
  63                                 $first = array_shift ( $y ) ;
  64                                 $first = explode ( ':' , $first ) ;
  65                                 $ns = array_shift ( $first ) ;
  66                                 $ns = trim ( str_replace ( '[' , '' , $ns ) ) ;
  67                                 if ( strlen ( $ns ) == 2 OR strtolower ( $ns ) == $catlow )
  68                                 {
  69                                         $add = '[[' . $ns . ':' . implode ( ':' , $first ) . ']]' ;
  70                                         if ( strtolower ( $ns ) == $catlow ) $cat[] = $add ;
  71                                         else $ll[] = $add ;
  72                                         $x = implode ( ']]' , $y ) ;
  73                                         $t[$key] = $x ;
  74                                         $y = trim ( strtolower ( $x ) ) ;
  75                                 }
  76                         }
  77                 }
  78                 if ( count ( $cat ) ) $s .= implode ( ' ' , $cat ) . "\n" ;
  79                 if ( count ( $ll ) ) $s .= implode ( ' ' , $ll ) . "\n" ;
  80                 $t = implode ( "\n" , $t ) ;
  81
  82                 # Load whitelist
  83                 $sat = array () ; # stand-alone-templates; must be lowercase
  84                 $wl_title = Title::newFromText ( $wgMetadataWhitelist ) ;
  85                 $wl_article = new Article ( $wl_title ) ;
  86                 $wl = explode ( "\n" , $wl_article->getContent(true) ) ;
  87                 foreach ( $wl AS $x )
  88                 {
  89                         $isentry = false ;
  90                         $x = trim ( $x ) ;
  91                         while ( substr ( $x , 0 , 1 ) == '*' )
  92                         {
  93                                 $isentry = true ;
  94                                 $x = trim ( substr ( $x , 1 ) ) ;
  95                         }
  96                         if ( $isentry )
  97                         {
  98                                 $sat[] = strtolower ( $x ) ;
  99                         }
 100
 101                 }
 102
 103                 # Templates, but only some
 104                 $t = explode ( '{{' , $t ) ;
 105                 $tl = array () ;
 106                 foreach ( $t AS $key => $x )
 107                 {
 108                         $y = explode ( '}}' , $x , 2 ) ;
 109                         if ( count ( $y ) == 2 )
 110                         {
 111                                 $z = $y[0] ;
 112                                 $z = explode ( '|' , $z ) ;
 113                                 $tn = array_shift ( $z ) ;
 114                                 if ( in_array ( strtolower ( $tn ) , $sat ) )
 115                                 {
 116                                         $tl[] = '{{' . $y[0] . '}}' ;
 117                                         $t[$key] = $y[1] ;
 118                                         $y = explode ( '}}' , $y[1] , 2 ) ;
 119                                 }
 120                                 else $t[$key] = '{{' . $x ;
 121                         }
 122                         else if ( $key != 0 ) $t[$key] = '{{' . $x ;
 123                         else $t[$key] = $x ;
 124                 }
 125                 if ( count ( $tl ) ) $s .= implode ( ' ' , $tl ) ;
 126                 $t = implode ( '' , $t ) ;
 127
 128                 $t = str_replace ( "\n\n\n" , "\n" , $t ) ;
 129                 $this->mArticle->mContent = $t ;
 130                 $this->mMetaData = $s ;
 131         }
 132
 133         /**
 134          * This is the function that gets called for "action=edit".
 135          */
 136         function edit() {
 137                 global $wgOut, $wgUser, $wgRequest;
 138                 // this is not an article
 139                 $wgOut->setArticleFlag(false);
 140
 141                 $this->importFormData( $wgRequest );
 142
 143                 if( $this->live ) {
 144                         $this->livePreview();
 145                         return;
 146                 }
 147
 148                 if ( ! $this->mTitle->userCanEdit() ) {
 149                         $wgOut->readOnlyPage( $this->mArticle->getContent( true ), true );
 150                         return;
 151                 }
 152                 if ( !$this->preview && !$this->diff && $wgUser->isBlocked( !$this->save ) ) {
 153                         # When previewing, don't check blocked state - will get caught at save time.
 154                         # Also, check when starting edition is done against slave to improve performance.
 155                         $this->blockedIPpage();
 156                         return;
 157                 }
 158                 if ( !$wgUser->isAllowed('edit') ) {
 159                         if ( $wgUser->isAnon() ) {
 160                                 $this->userNotLoggedInPage();
 161                                 return;
 162                         } else {
 163                                 $wgOut->readOnlyPage( $this->mArticle->getContent( true ), true );
 164                                 return;
 165                         }
 166                 }
 167                 if ( wfReadOnly() ) {
 168                         if( $this->save || $this->preview ) {
 169                                 $this->editForm( 'preview' );
 170                         } else if ( $this->diff ) {
 171                                 $this->editForm( 'diff' );
 172                         } else {
 173                                 $wgOut->readOnlyPage( $this->mArticle->getContent( true ) );
 174                         }
 175                         return;
 176                 }
 177                 if ( $this->save ) {
 178                         $this->editForm( 'save' );
 179                 } else if ( $this->preview ) {
 180                         $this->editForm( 'preview' );
 181                 } else if ( $this->diff ) {
 182                         $this->editForm( 'diff' );
 183                 } else { # First time through
 184                         if( $wgUser->getOption('previewonfirst')
 185                                 or $this->mTitle->getNamespace() == NS_CATEGORY ) {
 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->makeInternalOrExternalUrl( 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( $previewOutput );
 588                                 if($this->mTitle->getNamespace() == NS_CATEGORY) {
 589                                         $this->mArticle->closeShowCategory();
 590                                 }
 591                                 $wgOut->addHTML( "<br style=\"clear:both;\" />\n" );
 592                         }
 593                 }
 594                 $wgOut->addHTML( '</div>' );
 595                 if ( 'diff' == $formtype ) {
 596                         if ( $wgUser->getOption('previewontop' ) ) {
 597                                 $wgOut->addHTML( $this->getDiff() );
 598                         }
 599                 }
 600
 601
 602                 # if this is a comment, show a subject line at the top, which is also the edit summary.
 603                 # Otherwise, show a summary field at the bottom
 604                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
 605                         if( $this->section == 'new' ) {
 606                                 $commentsubject="{$subject}: <input tabindex='1' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 607                                 $editsummary = '';
 608                         } else {
 609                                 $commentsubject = '';
 610                                 $editsummary="{$summary}: <input tabindex='2' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 611                         }
 612
 613                 if( !$this->preview && !$this->diff ) {
 614                 # Don't select the edit box on preview; this interferes with seeing what's going on.
 615                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
 616                 }
 617                 # Prepare a list of templates used by this page
 618                 $templates = '';
 619                 $articleTemplates = $this->mArticle->getUsedTemplates();
 620                 if ( count( $articleTemplates ) > 0 ) {
 621                         $templates = '<br />'. wfMsg( 'templatesused' ) . '<ul>';
 622                         foreach ( $articleTemplates as $tpl ) {
 623                                 if ( $titleObj = Title::makeTitle( NS_TEMPLATE, $tpl ) ) {
 624                                         $templates .= '<li>' . $sk->makeLinkObj( $titleObj ) . '</li>';
 625                                 }
 626                         }
 627                         $templates .= '</ul>';
 628                 }
 629
 630                 global $wgLivePreview, $wgStylePath;
 631                 /**
 632                  * Live Preview lets us fetch rendered preview page content and
 633                  * add it to the page without refreshing the whole page.
 634                  * Set up the button for it; if not supported by the browser
 635                  * it will fall through to the normal form submission method.
 636                  */
 637                 if( $wgLivePreview ) {
 638                         global $wgJsMimeType;
 639                         $wgOut->addHTML( '<script type="'.$wgJsMimeType.'" src="' .
 640                                 htmlspecialchars( $wgStylePath . '/common/preview.js' ) .
 641                                 '"></script>' . "\n" );
 642                         $liveAction = $wgTitle->getLocalUrl( 'action=submit&wpPreview=true&live=true' );
 643                         $liveOnclick = 'onclick="return !livePreview('.
 644                                 'getElementById(\'wikiPreview\'),' .
 645                                 'editform.wpTextbox1.value,' .
 646                                 htmlspecialchars( '"' . $liveAction . '"' ) . ')"';
 647                 } else {
 648                         $liveOnclick = '';
 649                 }
 650
 651                 global $wgUseMetadataEdit ;
 652                 if ( $wgUseMetadataEdit )
 653                 {
 654                         $metadata = $this->mMetaData ;
 655                         $metadata = htmlspecialchars( $wgContLang->recodeForEdit( $metadata ) ) ;
 656                         $helppage = Title::newFromText ( wfmsg("metadata_page") ) ;
 657                         $top = str_replace ( "$1" , $helppage->getInternalURL() , wfmsg("metadata") ) ;
 658                         $metadata = $top . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
 659                 }
 660                 else $metadata = "" ;
 661
 662
 663                 $wgOut->addHTML( <<<END
 664 {$toolbar}
 665 <form id="editform" name="editform" method="post" action="$action"
 666 enctype="multipart/form-data">
 667 {$commentsubject}
 668 <textarea tabindex='1' accesskey="," name="wpTextbox1" rows='{$rows}'
 669 cols='{$cols}'{$ew}>
 670 END
 671 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox1 ) ) .
 672 "
 673 </textarea>
 674 {$metadata}
 675 <br />{$editsummary}
 676 {$checkboxhtml}
 677 <input tabindex='5' id='wpSave' type='submit' value=\"{$save}\" name=\"wpSave\" accesskey=\"".wfMsg('accesskey-save')."\"".
 678 " title=\"".wfMsg('tooltip-save')."\"/>
 679 <input tabindex='6' id='wpPreview' type='submit' $liveOnclick value=\"{$prev}\" name=\"wpPreview\" accesskey=\"".wfMsg('accesskey-preview')."\"".
 680 " title=\"".wfMsg('tooltip-preview')."\"/>
 681 <input tabindex='7' id='wpDiff' type='submit' value=\"{$diff}\" name=\"wpDiff\" accesskey=\"".wfMsg('accesskey-diff')."\"".
 682 " title=\"".wfMsg('tooltip-diff')."\"/>
 683 <em>{$cancel}</em> | <em>{$edithelp}</em>{$templates}" );
 684                 $wgOut->addWikiText( $copywarn );
 685                 $wgOut->addHTML( "
 686 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
 687 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n" );
 688
 689                 if ( $wgUser->isLoggedIn() ) {
 690                         /**
 691                          * To make it harder for someone to slip a user a page
 692                          * which submits an edit form to the wiki without their
 693                          * knowledge, a random token is associated with the login
 694                          * session. If it's not passed back with the submission,
 695                          * we won't save the page, or render user JavaScript and
 696                          * CSS previews.
 697                          */
 698                         $token = htmlspecialchars( $wgUser->editToken() );
 699                         $wgOut->addHTML( "
 700 <input type='hidden' value=\"$token\" name=\"wpEditToken\" />\n" );
 701                 }
 702
 703
 704                 if ( $isConflict ) {
 705                         require_once( "DifferenceEngine.php" );
 706                         $wgOut->addWikiText( '==' . wfMsg( "yourdiff" ) . '==' );
 707                         DifferenceEngine::showDiff( $this->textbox2, $this->textbox1,
 708                           wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
 709
 710                         $wgOut->addWikiText( '==' . wfMsg( "yourtext" ) . '==' );
 711                         $wgOut->addHTML( "<textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
 712 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox2 ) ) .
 713 "
 714 </textarea>" );
 715                 }
 716                 $wgOut->addHTML( "</form>\n" );
 717                 if ( $formtype == 'preview' && !$wgUser->getOption( 'previewontop' ) ) {
 718                         $wgOut->addHTML( '<div id="wikiPreview">' . $previewOutput . '</div>' );
 719                 }
 720                 if ( $formtype == 'diff' && !$wgUser->getOption( 'previewontop' ) ) {
 721                         #$wgOut->addHTML( '<div id="wikiPreview">' . $difftext . '</div>' );
 722                         $wgOut->addHTML( $this->getDiff() );
 723                 }
 724         }
 725
 726         /**
 727          * @todo document
 728          */
 729         function getPreviewText( $isConflict, $isCssJsSubpage ) {
 730                 global $wgOut, $wgUser, $wgTitle, $wgParser, $wgAllowDiffPreview, $wgEnableDiffPreviewPreference;
 731                 $previewhead = '<h2>' . htmlspecialchars( wfMsg( 'preview' ) ) . "</h2>\n" .
 732                         "<p class='previewnote'>" . htmlspecialchars( wfMsg( 'previewnote' ) ) . "</p>\n";
 733                 if ( $isConflict ) {
 734                         $previewhead.='<h2>' . htmlspecialchars( wfMsg( 'previewconflict' ) ) .
 735                                 "</h2>\n";
 736                 }
 737
 738                 $parserOptions = ParserOptions::newFromUser( $wgUser );
 739                 $parserOptions->setEditSection( false );
 740
 741                 # don't parse user css/js, show message about preview
 742                 # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
 743
 744                 if ( $isCssJsSubpage ) {
 745                         if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
 746                                 $previewtext = wfMsg('usercsspreview');
 747                         } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
 748                                 $previewtext = wfMsg('userjspreview');
 749                         }
 750                         $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
 751                         $wgOut->addHTML( $parserOutput->mText );
 752                         return $previewhead;
 753                 } else {
 754                         # if user want to see preview when he edit an article
 755                         if( $wgUser->getOption('previewonfirst') and ($this->textbox1 == '')) {
 756                                 $this->textbox1 = $this->mArticle->getContent(true);
 757                         }
 758
 759                         $toparse = $this->textbox1 ;
 760                         if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData ;
 761
 762                         $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ) ."\n\n",
 763                                         $wgTitle, $parserOptions );
 764
 765                         $previewHTML = $parserOutput->mText;
 766
 767                         $wgOut->addCategoryLinks($parserOutput->getCategoryLinks());
 768                         $wgOut->addLanguageLinks($parserOutput->getLanguageLinks());
 769                         return $previewhead . $previewHTML;
 770                 }
 771         }
 772
 773         /**
 774          * @todo document
 775          */
 776         function blockedIPpage() {
 777                 global $wgOut, $wgUser, $wgContLang, $wgIP;
 778
 779                 $wgOut->setPageTitle( wfMsg( 'blockedtitle' ) );
 780                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 781                 $wgOut->setArticleRelated( false );
 782
 783                 $id = $wgUser->blockedBy();
 784                 $reason = $wgUser->blockedFor();
 785                 $ip = $wgIP;
 786
 787                 if ( is_numeric( $id ) ) {
 788                         $name = User::whoIs( $id );
 789                 } else {
 790                         $name = $id;
 791                 }
 792                 $link = '[[' . $wgContLang->getNsText( NS_USER ) .
 793                   ":{$name}|{$name}]]";
 794
 795                 $wgOut->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name ) );
 796                 $wgOut->returnToMain( false );
 797         }
 798
 799         /**
 800          * @todo document
 801          */
 802         function userNotLoggedInPage() {
 803                 global $wgOut;
 804
 805                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
 806                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 807                 $wgOut->setArticleRelated( false );
 808
 809                 $wgOut->addWikiText( wfMsg( 'whitelistedittext' ) );
 810                 $wgOut->returnToMain( false );
 811         }
 812
 813         /**
 814          * @todo document
 815          */
 816         function spamPage ( $match = false )
 817         {
 818                 global $wgOut;
 819                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
 820                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 821                 $wgOut->setArticleRelated( false );
 822
 823                 $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
 824                 if ( $match ) {
 825                         $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$match}</nowiki>" ) );
 826                 }
 827                 $wgOut->returnToMain( false );
 828         }
 829
 830         /**
 831          * Forks processes to scan the originating IP for an open proxy server
 832          * MemCached can be used to skip IPs that have already been scanned
 833          */
 834         function proxyCheck() {
 835                 global $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath;
 836                 global $wgIP, $wgUseMemCached, $wgMemc, $wgDBname, $wgProxyMemcExpiry;
 837
 838                 if ( !$wgBlockOpenProxies ) {
 839                         return;
 840                 }
 841
 842                 # Get MemCached key
 843                 $skip = false;
 844                 if ( $wgUseMemCached ) {
 845                         $mcKey = $wgDBname.':proxy:ip:'.$wgIP;
 846                         $mcValue = $wgMemc->get( $mcKey );
 847                         if ( $mcValue ) {
 848                                 $skip = true;
 849                         }
 850                 }
 851
 852                 # Fork the processes
 853                 if ( !$skip ) {
 854                         $title = Title::makeTitle( NS_SPECIAL, 'Blockme' );
 855                         $iphash = md5( $wgIP . $wgProxyKey );
 856                         $url = $title->getFullURL( 'ip='.$iphash );
 857
 858                         foreach ( $wgProxyPorts as $port ) {
 859                                 $params = implode( ' ', array(
 860                                                         escapeshellarg( $wgProxyScriptPath ),
 861                                                         escapeshellarg( $wgIP ),
 862                                                         escapeshellarg( $port ),
 863                                                         escapeshellarg( $url )
 864                                                         ));
 865                                 exec( "php $params &>/dev/null &" );
 866                         }
 867                         # Set MemCached key
 868                         if ( $wgUseMemCached ) {
 869                                 $wgMemc->set( $mcKey, 1, $wgProxyMemcExpiry );
 870                         }
 871                 }
 872         }
 873
 874         /**
 875          * @access private
 876          * @todo document
 877          */
 878         function mergeChangesInto( &$text ){
 879                 $yourtext = $this->mArticle->fetchRevisionText();
 880
 881                 $db =& wfGetDB( DB_MASTER );
 882                 $oldText = $this->mArticle->fetchRevisionText(
 883                         $db->timestamp( $this->edittime ),
 884                         'rev_timestamp' );
 885
 886                 if(wfMerge($oldText, $text, $yourtext, $result)){
 887                         $text = $result;
 888                         return true;
 889                 } else {
 890                         return false;
 891                 }
 892         }
 893
 894
 895         function checkUnicodeCompliantBrowser() {
 896                 global $wgBrowserBlackList;
 897                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
 898                 foreach ( $wgBrowserBlackList as $browser ) {
 899                         if ( preg_match($browser, $currentbrowser) ) {
 900                                 return false;
 901                         }
 902                 }
 903                 return true;
 904         }
 905
 906         /**
 907          * Format an anchor fragment as it would appear for a given section name
 908          * @param string $text
 909          * @return string
 910          * @access private
 911          */
 912         function sectionAnchor( $text ) {
 913                 $headline = Sanitizer::decodeCharReferences( $text );
 914                 # strip out HTML
 915                 $headline = preg_replace( '/<.*?' . '>/', '', $headline );
 916                 $headline = trim( $headline );
 917                 $sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
 918                 $replacearray = array(
 919                         '%3A' => ':',
 920                         '%' => '.'
 921                 );
 922                 return str_replace(
 923                         array_keys( $replacearray ),
 924                         array_values( $replacearray ),
 925                         $sectionanchor );
 926         }
 927
 928         /**
 929          * Shows a bulletin board style toolbar for common editing functions.
 930          * It can be disabled in the user preferences.
 931          * The necessary JavaScript code can be found in style/wikibits.js.
 932          */
 933         function getEditToolbar() {
 934                 global $wgStylePath, $wgLang, $wgMimeType, $wgJsMimeType;
 935
 936                 /**
 937                  * toolarray an array of arrays which each include the filename of
 938                  * the button image (without path), the opening tag, the closing tag,
 939                  * and optionally a sample text that is inserted between the two when no
 940                  * selection is highlighted.
 941                  * The tip text is shown when the user moves the mouse over the button.
 942                  *
 943                  * Already here are accesskeys (key), which are not used yet until someone
 944                  * can figure out a way to make them work in IE. However, we should make
 945                  * sure these keys are not defined on the edit page.
 946                  */
 947                 $toolarray=array(
 948                         array(  'image'=>'button_bold.png',
 949                                         'open'  =>      "\'\'\'",
 950                                         'close' =>      "\'\'\'",
 951                                         'sample'=>      wfMsg('bold_sample'),
 952                                         'tip'   =>      wfMsg('bold_tip'),
 953                                         'key'   =>      'B'
 954                                 ),
 955                         array(  'image'=>'button_italic.png',
 956                                         'open'  =>      "\'\'",
 957                                         'close' =>      "\'\'",
 958                                         'sample'=>      wfMsg('italic_sample'),
 959                                         'tip'   =>      wfMsg('italic_tip'),
 960                                         'key'   =>      'I'
 961                                 ),
 962                         array(  'image'=>'button_link.png',
 963                                         'open'  =>      '[[',
 964                                         'close' =>      ']]',
 965                                         'sample'=>      wfMsg('link_sample'),
 966                                         'tip'   =>      wfMsg('link_tip'),
 967                                         'key'   =>      'L'
 968                                 ),
 969                         array(  'image'=>'button_extlink.png',
 970                                         'open'  =>      '[',
 971                                         'close' =>      ']',
 972                                         'sample'=>      wfMsg('extlink_sample'),
 973                                         'tip'   =>      wfMsg('extlink_tip'),
 974                                         'key'   =>      'X'
 975                                 ),
 976                         array(  'image'=>'button_headline.png',
 977                                         'open'  =>      "\\n== ",
 978                                         'close' =>      " ==\\n",
 979                                         'sample'=>      wfMsg('headline_sample'),
 980                                         'tip'   =>      wfMsg('headline_tip'),
 981                                         'key'   =>      'H'
 982                                 ),
 983                         array(  'image'=>'button_image.png',
 984                                         'open'  =>      '[['.$wgLang->getNsText(NS_IMAGE).":",
 985                                         'close' =>      ']]',
 986                                         'sample'=>      wfMsg('image_sample'),
 987                                         'tip'   =>      wfMsg('image_tip'),
 988                                         'key'   =>      'D'
 989                                 ),
 990                         array(  'image' =>'button_media.png',
 991                                         'open'  =>      '[['.$wgLang->getNsText(NS_MEDIA).':',
 992                                         'close' =>      ']]',
 993                                         'sample'=>      wfMsg('media_sample'),
 994                                         'tip'   =>      wfMsg('media_tip'),
 995                                         'key'   =>      'M'
 996                                 ),
 997                         array(  'image' =>'button_math.png',
 998                                         'open'  =>      "\\<math\\>",
 999                                         'close' =>      "\\</math\\>",
1000                                         'sample'=>      wfMsg('math_sample'),
1001                                         'tip'   =>      wfMsg('math_tip'),
1002                                         'key'   =>      'C'
1003                                 ),
1004                         array(  'image' =>'button_nowiki.png',
1005                                         'open'  =>      "\\<nowiki\\>",
1006                                         'close' =>      "\\</nowiki\\>",
1007                                         'sample'=>      wfMsg('nowiki_sample'),
1008                                         'tip'   =>      wfMsg('nowiki_tip'),
1009                                         'key'   =>      'N'
1010                                 ),
1011                         array(  'image' =>'button_sig.png',
1012                                         'open'  =>      '--~~~~',
1013                                         'close' =>      '',
1014                                         'sample'=>      '',
1015                                         'tip'   =>      wfMsg('sig_tip'),
1016                                         'key'   =>      'Y'
1017                                 ),
1018                         array(  'image' =>'button_hr.png',
1019                                         'open'  =>      "\\n----\\n",
1020                                         'close' =>      '',
1021                                         'sample'=>      '',
1022                                         'tip'   =>      wfMsg('hr_tip'),
1023                                         'key'   =>      'R'
1024                                 )
1025                 );
1026                 $toolbar ="<script type='$wgJsMimeType'>\n/*<![CDATA[*/\n";
1027
1028                 $toolbar.="document.writeln(\"<div id='toolbar'>\");\n";
1029                 foreach($toolarray as $tool) {
1030
1031                         $image=$wgStylePath.'/common/images/'.$tool['image'];
1032                         $open=$tool['open'];
1033                         $close=$tool['close'];
1034                         $sample = wfEscapeJsString( $tool['sample'] );
1035
1036                         // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
1037                         // Older browsers show a "speedtip" type message only for ALT.
1038                         // Ideally these should be different, realistically they
1039                         // probably don't need to be.
1040                         $tip = wfEscapeJsString( $tool['tip'] );
1041
1042                         #$key = $tool["key"];
1043
1044                         $toolbar.="addButton('$image','$tip','$open','$close','$sample');\n";
1045                 }
1046
1047                 $toolbar.="addInfobox('" . wfEscapeJsString( wfMsg( "infobox" ) ) .
1048                         "','" . wfEscapeJsString( wfMsg( "infobox_alert" ) ) . "');\n";
1049                 $toolbar.="document.writeln(\"</div>\");\n";
1050
1051                 $toolbar.="/*]]>*/\n</script>";
1052                 return $toolbar;
1053         }
1054
1055         /**
1056          * Output preview text only. This can be sucked into the edit page
1057          * via JavaScript, and saves the server time rendering the skin as
1058          * well as theoretically being more robust on the client (doesn't
1059          * disturb the edit box's undo history, won't eat your text on
1060          * failure, etc).
1061          *
1062          * @todo This doesn't include category or interlanguage links.
1063          *       Would need to enhance it a bit, maybe wrap them in XML
1064          *       or something... that might also require more skin
1065          *       initialization, so check whether that's a problem.
1066          */
1067         function livePreview() {
1068                 global $wgOut;
1069                 $wgOut->disable();
1070                 header( 'Content-type: text/xml' );
1071                 header( 'Cache-control: no-cache' );
1072                 # FIXME
1073                 echo $this->getPreviewText( false, false );
1074         }
1075
1076
1077         /**
1078          * Get a diff between the current contents of the edit box and the
1079          * version of the page we're editing from.
1080          *
1081          * If this is a section edit, we'll replace the section as for final
1082          * save and then make a comparison.
1083          *
1084          * @return string HTML
1085          */
1086         function getDiff() {
1087                 require_once( 'DifferenceEngine.php' );
1088                 $oldtext = $this->mArticle->getContent( true );
1089                 $newtext = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
1090                         $this->section, $this->textbox1, $this->summary, $this->edittime );
1091                 $oldtitle = wfMsg( 'currentrev' );
1092                 $newtitle = wfMsg( 'yourtext' );
1093                 if ( $oldtext != wfMsg( 'noarticletext' ) || $newtext != '' ) {
1094                         $difftext = DifferenceEngine::getDiff( $oldtext, $newtext, $oldtitle, $newtitle );
1095                 }
1096
1097                 return '<div id="wikiDiff">' . $difftext . '</div>';
1098         }
1099
1100 }
1101
1102 ?>