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 ( $isConflict) {
 368                                 wfDebug( "EditPage::editForm conflict! getting section '$this->section' for time '$this->edittime'\n" );
 369                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 370                                         $this->section, $this->textbox1, $this->summary, $this->edittime);
 371                         }
 372                         else {
 373                                 wfDebug( "EditPage::editForm getting section '$this->section'\n" );
 374                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 375                                         $this->section, $this->textbox1, $this->summary);
 376                         }
 377                         # Suppress edit conflict with self
 378
 379                         if ( ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
 380                                 $isConflict = false;
 381                         } else {
 382                                 # switch from section editing to normal editing in edit conflict
 383                                 if($isConflict) {
 384                                         # Attempt merge
 385                                         if( $this->mergeChangesInto( $text ) ){
 386                                                 // Successful merge! Maybe we should tell the user the good news?
 387                                                 $isConflict = false;
 388                                         } else {
 389                                                 $this->section = '';
 390                                                 $this->textbox1 = $text;
 391                                         }
 392                                 }
 393                         }
 394                         if ( ! $isConflict ) {
 395                                 # All's well
 396                                 $sectionanchor = '';
 397                                 if( $this->section == 'new' ) {
 398                                         if( $this->summary != '' ) {
 399                                                 $sectionanchor = $this->sectionAnchor( $this->summary );
 400                                         }
 401                                 } elseif( $this->section != '' ) {
 402                                         # Try to get a section anchor from the section source, redirect to edited section if header found
 403                                         # XXX: might be better to integrate this into Article::getTextOfLastEditWithSectionReplacedOrAdded
 404                                         # for duplicate heading checking and maybe parsing
 405                                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
 406                                         # we can't deal with anchors, includes, html etc in the header for now,
 407                                         # headline would need to be parsed to improve this
 408                                         #if($hasmatch and strlen($matches[2]) > 0 and !preg_match( "/[\\['{<>]/", $matches[2])) {
 409                                         if($hasmatch and strlen($matches[2]) > 0) {
 410                                                 $sectionanchor = $this->sectionAnchor( $matches[2] );
 411                                         }
 412                                 }
 413
 414                                 if (wfRunHooks('ArticleSave', array(&$this->mArticle, &$wgUser, &$text,
 415                                                                                                         &$this->summary, &$this->minoredit,
 416                                                                                                         &$this->watchthis, &$sectionanchor)))
 417                                 {
 418                                         # update the article here
 419                                         if($this->mArticle->updateArticle( $text, $this->summary, $this->minoredit,
 420                                                                                                            $this->watchthis, '', $sectionanchor ))
 421                                         {
 422                                                 wfRunHooks('ArticleSaveComplete', array(&$this->mArticle, &$wgUser, $text,
 423                                                                                                                                 $this->summary, $this->minoredit,
 424                                                                                                                                 $this->watchthis, $sectionanchor));
 425                                                 return;
 426                                         }
 427                                         else
 428                                           $isConflict = true;
 429                                 }
 430                         }
 431                 }
 432                 # First time through: get contents, set time for conflict
 433                 # checking, etc.
 434
 435                 if ( 'initial' == $formtype || $firsttime ) {
 436                         $this->edittime = $this->mArticle->getTimestamp();
 437                         $this->textbox1 = $this->mArticle->getContent( true );
 438                         $this->summary = '';
 439                         $this->proxyCheck();
 440                 }
 441                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 442
 443                 # Enabled article-related sidebar, toplinks, etc.
 444                 $wgOut->setArticleRelated( true );
 445
 446                 if ( $isConflict ) {
 447                         $s = wfMsg( 'editconflict', $this->mTitle->getPrefixedText() );
 448                         $wgOut->setPageTitle( $s );
 449                         $wgOut->addWikiText( wfMsg( 'explainconflict' ) );
 450
 451                         $this->textbox2 = $this->textbox1;
 452                         $this->textbox1 = $this->mArticle->getContent( true );
 453                         $this->edittime = $this->mArticle->getTimestamp();
 454                 } else {
 455
 456                         if( $this->section != '' ) {
 457                                 if( $this->section == 'new' ) {
 458                                         $s = wfMsg('editingcomment', $this->mTitle->getPrefixedText() );
 459                                 } else {
 460                                         $s = wfMsg('editingsection', $this->mTitle->getPrefixedText() );
 461                                 }
 462                                 if(!$this->preview) {
 463                                         preg_match( "/^(=+)(.+)\\1/mi",
 464                                                 $this->textbox1,
 465                                                 $matches );
 466                                         if( !empty( $matches[2] ) ) {
 467                                                 $this->summary = "/* ". trim($matches[2])." */ ";
 468                                         }
 469                                 }
 470                         } else {
 471                                 $s = wfMsg( 'editing', $this->mTitle->getPrefixedText() );
 472                         }
 473                         $wgOut->setPageTitle( $s );
 474                         if ( !$this->checkUnicodeCompliantBrowser() ) {
 475                                 $this->mArticle->setOldSubtitle();
 476                                 $wgOut->addWikiText( wfMsg( 'nonunicodebrowser') );
 477                         }
 478                         if ( $this->oldid ) {
 479                                 $this->mArticle->setOldSubtitle();
 480                                 $wgOut->addWikiText( wfMsg( 'editingold' ) );
 481                         }
 482                 }
 483
 484                 if( wfReadOnly() ) {
 485                         $wgOut->addWikiText( wfMsg( 'readonlywarning' ) );
 486                 } else if ( $isCssJsSubpage and 'preview' != $formtype) {
 487                         $wgOut->addWikiText( wfMsg( 'usercssjsyoucanpreview' ));
 488                 }
 489                 if( $this->mTitle->isProtected('edit') ) {
 490                         $wgOut->addWikiText( wfMsg( 'protectedpagewarning' ) );
 491                 }
 492
 493                 $kblength = (int)(strlen( $this->textbox1 ) / 1024);
 494                 if( $kblength > 29 ) {
 495                         $wgOut->addWikiText( wfMsg( 'longpagewarning', $wgLang->formatNum( $kblength ) ) );
 496                 }
 497
 498                 $rows = $wgUser->getOption( 'rows' );
 499                 $cols = $wgUser->getOption( 'cols' );
 500
 501                 $ew = $wgUser->getOption( 'editwidth' );
 502                 if ( $ew ) $ew = " style=\"width:100%\"";
 503                 else $ew = '';
 504
 505                 $q = 'action=submit';
 506                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
 507                 $action = $this->mTitle->escapeLocalURL( $q );
 508
 509                 $summary = wfMsg('summary');
 510                 $subject = wfMsg('subject');
 511                 $minor   = wfMsg('minoredit');
 512                 $watchthis = wfMsg ('watchthis');
 513                 $save = wfMsg('savearticle');
 514                 $prev = wfMsg('showpreview');
 515                 $diff = wfMsg('showdiff');
 516
 517                 $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
 518                                 wfMsg('cancel') );
 519                 $edithelpurl = $sk->makeUrl( wfMsg( 'edithelppage' ));
 520                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
 521                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
 522                         htmlspecialchars( wfMsg( 'newwindow' ) );
 523
 524                 global $wgRightsText;
 525                 $copywarn = "<div id=\"editpage-copywarn\">\n" .
 526                         wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
 527                                 '[[' . wfMsgForContent( 'copyrightpage' ) . ']]',
 528                                 $wgRightsText ) . "\n</div>";
 529
 530                 if( $wgUser->getOption('showtoolbar') and !$isCssJsSubpage ) {
 531                         # prepare toolbar for edit buttons
 532                         $toolbar = $this->getEditToolbar();
 533                 } else {
 534                         $toolbar = '';
 535                 }
 536
 537                 // activate checkboxes if user wants them to be always active
 538                 if( !$this->preview && !$this->diff ) {
 539                         if( $wgUser->getOption( 'watchdefault' ) ) $this->watchthis = true;
 540                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
 541
 542                         // activate checkbox also if user is already watching the page,
 543                         // require wpWatchthis to be unset so that second condition is not
 544                         // checked unnecessarily
 545                         if( !$this->watchthis && $this->mTitle->userIsWatching() ) $this->watchthis = true;
 546                 }
 547
 548                 $minoredithtml = '';
 549
 550                 if ( $wgUser->isLoggedIn() || $wgAllowAnonymousMinor ) {
 551                         $minoredithtml =
 552                                 "<input tabindex='3' type='checkbox' value='1' name='wpMinoredit'".($this->minoredit?" checked='checked'":"").
 553                                 " accesskey='".wfMsg('accesskey-minoredit')."' id='wpMinoredit' />".
 554                                 "<label for='wpMinoredit' title='".wfMsg('tooltip-minoredit')."'>{$minor}</label>";
 555                 }
 556
 557                 $watchhtml = '';
 558
 559                 if ( $wgUser->isLoggedIn() ) {
 560                         $watchhtml = "<input tabindex='4' type='checkbox' name='wpWatchthis'".($this->watchthis?" checked='checked'":"").
 561                                 " accesskey='".wfMsg('accesskey-watch')."' id='wpWatchthis'  />".
 562                                 "<label for='wpWatchthis' title='".wfMsg('tooltip-watch')."'>{$watchthis}</label>";
 563                 }
 564
 565                 $checkboxhtml = $minoredithtml . $watchhtml . '<br />';
 566
 567                 $wgOut->addHTML( '<div id="wikiPreview">' );
 568                 if ( 'preview' == $formtype) {
 569                         $previewOutput = $this->getPreviewText( $isConflict, $isCssJsSubpage );
 570                         if ( $wgUser->getOption('previewontop' ) ) {
 571                                 $wgOut->addHTML( $previewOutput );
 572                                 $wgOut->addHTML( "<br style=\"clear:both;\" />\n" );
 573                         }
 574                 }
 575                 $wgOut->addHTML( '</div>' );
 576                 if ( 'diff' == $formtype ) {
 577                         if ( $wgUser->getOption('previewontop' ) ) {
 578                                 $wgOut->addHTML( $this->getDiff() );
 579                         }
 580                 }
 581
 582
 583                 # if this is a comment, show a subject line at the top, which is also the edit summary.
 584                 # Otherwise, show a summary field at the bottom
 585                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
 586                         if( $this->section == 'new' ) {
 587                                 $commentsubject="{$subject}: <input tabindex='1' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 588                                 $editsummary = '';
 589                         } else {
 590                                 $commentsubject = '';
 591                                 $editsummary="{$summary}: <input tabindex='2' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 592                         }
 593
 594                 if( !$this->preview && !$this->diff ) {
 595                 # Don't select the edit box on preview; this interferes with seeing what's going on.
 596                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
 597                 }
 598                 # Prepare a list of templates used by this page
 599                 $templates = '';
 600                 $articleTemplates = $this->mArticle->getUsedTemplates();
 601                 if ( count( $articleTemplates ) > 0 ) {
 602                         $templates = '<br />'. wfMsg( 'templatesused' ) . '<ul>';
 603                         foreach ( $articleTemplates as $tpl ) {
 604                                 if ( $titleObj = Title::makeTitle( NS_TEMPLATE, $tpl ) ) {
 605                                         $templates .= '<li>' . $sk->makeLinkObj( $titleObj ) . '</li>';
 606                                 }
 607                         }
 608                         $templates .= '</ul>';
 609                 }
 610
 611                 global $wgLivePreview, $wgStylePath;
 612                 /**
 613                  * Live Preview lets us fetch rendered preview page content and
 614                  * add it to the page without refreshing the whole page.
 615                  * Set up the button for it; if not supported by the browser
 616                  * it will fall through to the normal form submission method.
 617                  */
 618                 if( $wgLivePreview ) {
 619                         global $wgJsMimeType;
 620                         $wgOut->addHTML( '<script type="'.$wgJsMimeType.'" src="' .
 621                                 htmlspecialchars( $wgStylePath . '/common/preview.js' ) .
 622                                 '"></script>' . "\n" );
 623                         $liveAction = $wgTitle->getLocalUrl( 'action=submit&wpPreview=true&live=true' );
 624                         $liveOnclick = 'onclick="return !livePreview('.
 625                                 'getElementById(\'wikiPreview\'),' .
 626                                 'editform.wpTextbox1.value,' .
 627                                 htmlspecialchars( '"' . $liveAction . '"' ) . ')"';
 628                 } else {
 629                         $liveOnclick = '';
 630                 }
 631
 632                 global $wgUseMetadataEdit ;
 633                 if ( $wgUseMetadataEdit )
 634                 {
 635                         $metadata = $this->mMetaData ;
 636                         $metadata = htmlspecialchars( $wgContLang->recodeForEdit( $metadata ) ) ;
 637                         $helppage = Title::newFromText ( wfmsg("metadata_page") ) ;
 638                         $top = str_replace ( "$1" , $helppage->getInternalURL() , wfmsg("metadata") ) ;
 639                         $metadata = $top . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
 640                 }
 641                 else $metadata = "" ;
 642
 643
 644                 $wgOut->addHTML( <<<END
 645 {$toolbar}
 646 <form id="editform" name="editform" method="post" action="$action"
 647 enctype="multipart/form-data">
 648 {$commentsubject}
 649 <textarea tabindex='1' accesskey="," name="wpTextbox1" rows='{$rows}'
 650 cols='{$cols}'{$ew}>
 651 END
 652 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox1 ) ) .
 653 "
 654 </textarea>
 655 {$metadata}
 656 <br />{$editsummary}
 657 {$checkboxhtml}
 658 <input tabindex='5' id='wpSave' type='submit' value=\"{$save}\" name=\"wpSave\" accesskey=\"".wfMsg('accesskey-save')."\"".
 659 " title=\"".wfMsg('tooltip-save')."\"/>
 660 <input tabindex='6' id='wpPreview' type='submit' $liveOnclick value=\"{$prev}\" name=\"wpPreview\" accesskey=\"".wfMsg('accesskey-preview')."\"".
 661 " title=\"".wfMsg('tooltip-preview')."\"/>
 662 <input tabindex='7' id='wpDiff' type='submit' value=\"{$diff}\" name=\"wpDiff\" accesskey=\"".wfMsg('accesskey-diff')."\"".
 663 " title=\"".wfMsg('tooltip-diff')."\"/>
 664 <em>{$cancel}</em> | <em>{$edithelp}</em>{$templates}" );
 665                 $wgOut->addWikiText( $copywarn );
 666                 $wgOut->addHTML( "
 667 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
 668 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n" );
 669
 670                 if ( $wgUser->isLoggedIn() ) {
 671                         /**
 672                          * To make it harder for someone to slip a user a page
 673                          * which submits an edit form to the wiki without their
 674                          * knowledge, a random token is associated with the login
 675                          * session. If it's not passed back with the submission,
 676                          * we won't save the page, or render user JavaScript and
 677                          * CSS previews.
 678                          */
 679                         $token = htmlspecialchars( $wgUser->editToken() );
 680                         $wgOut->addHTML( "
 681 <input type='hidden' value=\"$token\" name=\"wpEditToken\" />\n" );
 682                 }
 683
 684
 685                 if ( $isConflict ) {
 686                         require_once( "DifferenceEngine.php" );
 687                         $wgOut->addWikiText( '==' . wfMsg( "yourdiff" ) . '==' );
 688                         DifferenceEngine::showDiff( $this->textbox2, $this->textbox1,
 689                           wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
 690
 691                         $wgOut->addWikiText( '==' . wfMsg( "yourtext" ) . '==' );
 692                         $wgOut->addHTML( "<textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
 693 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox2 ) ) .
 694 "
 695 </textarea>" );
 696                 }
 697                 $wgOut->addHTML( "</form>\n" );
 698                 if ( $formtype == 'preview' && !$wgUser->getOption( 'previewontop' ) ) {
 699                         $wgOut->addHTML( '<div id="wikiPreview">' . $previewOutput . '</div>' );
 700                 }
 701                 if ( $formtype == 'diff' && !$wgUser->getOption( 'previewontop' ) ) {
 702                         #$wgOut->addHTML( '<div id="wikiPreview">' . $difftext . '</div>' );
 703                         $wgOut->addHTML( $this->getDiff() );
 704                 }
 705         }
 706
 707         /**
 708          * @todo document
 709          */
 710         function getPreviewText( $isConflict, $isCssJsSubpage ) {
 711                 global $wgOut, $wgUser, $wgTitle, $wgParser, $wgAllowDiffPreview, $wgEnableDiffPreviewPreference;
 712                 $previewhead = '<h2>' . htmlspecialchars( wfMsg( 'preview' ) ) . "</h2>\n" .
 713                         "<p class='previewnote'>" . htmlspecialchars( wfMsg( 'previewnote' ) ) . "</p>\n";
 714                 if ( $isConflict ) {
 715                         $previewhead.='<h2>' . htmlspecialchars( wfMsg( 'previewconflict' ) ) .
 716                                 "</h2>\n";
 717                 }
 718
 719                 $parserOptions = ParserOptions::newFromUser( $wgUser );
 720                 $parserOptions->setEditSection( false );
 721
 722                 # don't parse user css/js, show message about preview
 723                 # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
 724
 725                 if ( $isCssJsSubpage ) {
 726                         if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
 727                                 $previewtext = wfMsg('usercsspreview');
 728                         } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
 729                                 $previewtext = wfMsg('userjspreview');
 730                         }
 731                         $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
 732                         $wgOut->addHTML( $parserOutput->mText );
 733                         return $previewhead;
 734                 } else {
 735                         # if user want to see preview when he edit an article
 736                         if( $wgUser->getOption('previewonfirst') and ($this->textbox1 == '')) {
 737                                 $this->textbox1 = $this->mArticle->getContent(true);
 738                         }
 739
 740                         $toparse = $this->textbox1 ;
 741                         if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData ;
 742
 743                         $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ) ."\n\n",
 744                                         $wgTitle, $parserOptions );
 745
 746                         $previewHTML = $parserOutput->mText;
 747
 748                         $wgOut->addCategoryLinks($parserOutput->getCategoryLinks());
 749                         $wgOut->addLanguageLinks($parserOutput->getLanguageLinks());
 750                         return $previewhead . $previewHTML;
 751                 }
 752         }
 753
 754         /**
 755          * @todo document
 756          */
 757         function blockedIPpage() {
 758                 global $wgOut, $wgUser, $wgContLang, $wgIP;
 759
 760                 $wgOut->setPageTitle( wfMsg( 'blockedtitle' ) );
 761                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 762                 $wgOut->setArticleRelated( false );
 763
 764                 $id = $wgUser->blockedBy();
 765                 $reason = $wgUser->blockedFor();
 766                 $ip = $wgIP;
 767
 768                 if ( is_numeric( $id ) ) {
 769                         $name = User::whoIs( $id );
 770                 } else {
 771                         $name = $id;
 772                 }
 773                 $link = '[[' . $wgContLang->getNsText( NS_USER ) .
 774                   ":{$name}|{$name}]]";
 775
 776                 $wgOut->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name ) );
 777                 $wgOut->returnToMain( false );
 778         }
 779
 780         /**
 781          * @todo document
 782          */
 783         function userNotLoggedInPage() {
 784                 global $wgOut;
 785
 786                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
 787                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 788                 $wgOut->setArticleRelated( false );
 789
 790                 $wgOut->addWikiText( wfMsg( 'whitelistedittext' ) );
 791                 $wgOut->returnToMain( false );
 792         }
 793
 794         /**
 795          * @todo document
 796          */
 797         function spamPage ( $match = false )
 798         {
 799                 global $wgOut;
 800                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
 801                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 802                 $wgOut->setArticleRelated( false );
 803
 804                 $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
 805                 if ( $match ) {
 806                         $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$match}</nowiki>" ) );
 807                 }
 808                 $wgOut->returnToMain( false );
 809         }
 810
 811         /**
 812          * Forks processes to scan the originating IP for an open proxy server
 813          * MemCached can be used to skip IPs that have already been scanned
 814          */
 815         function proxyCheck() {
 816                 global $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath;
 817                 global $wgIP, $wgUseMemCached, $wgMemc, $wgDBname, $wgProxyMemcExpiry;
 818
 819                 if ( !$wgBlockOpenProxies ) {
 820                         return;
 821                 }
 822
 823                 # Get MemCached key
 824                 $skip = false;
 825                 if ( $wgUseMemCached ) {
 826                         $mcKey = $wgDBname.':proxy:ip:'.$wgIP;
 827                         $mcValue = $wgMemc->get( $mcKey );
 828                         if ( $mcValue ) {
 829                                 $skip = true;
 830                         }
 831                 }
 832
 833                 # Fork the processes
 834                 if ( !$skip ) {
 835                         $title = Title::makeTitle( NS_SPECIAL, 'Blockme' );
 836                         $iphash = md5( $wgIP . $wgProxyKey );
 837                         $url = $title->getFullURL( 'ip='.$iphash );
 838
 839                         foreach ( $wgProxyPorts as $port ) {
 840                                 $params = implode( ' ', array(
 841                                                         escapeshellarg( $wgProxyScriptPath ),
 842                                                         escapeshellarg( $wgIP ),
 843                                                         escapeshellarg( $port ),
 844                                                         escapeshellarg( $url )
 845                                                         ));
 846                                 exec( "php $params &>/dev/null &" );
 847                         }
 848                         # Set MemCached key
 849                         if ( $wgUseMemCached ) {
 850                                 $wgMemc->set( $mcKey, 1, $wgProxyMemcExpiry );
 851                         }
 852                 }
 853         }
 854
 855         /**
 856          * @access private
 857          * @todo document
 858          */
 859         function mergeChangesInto( &$text ){
 860                 $yourtext = $this->mArticle->fetchRevisionText();
 861
 862                 $db =& wfGetDB( DB_SLAVE );
 863                 $oldText = $this->mArticle->fetchRevisionText(
 864                         $db->timestamp( $this->edittime ),
 865                         'rev_timestamp' );
 866
 867                 if(wfMerge($oldText, $text, $yourtext, $result)){
 868                         $text = $result;
 869                         return true;
 870                 } else {
 871                         return false;
 872                 }
 873         }
 874
 875
 876         function checkUnicodeCompliantBrowser() {
 877                 global $wgBrowserBlackList;
 878                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
 879                 foreach ( $wgBrowserBlackList as $browser ) {
 880                         if ( preg_match($browser, $currentbrowser) ) {
 881                                 return false;
 882                         }
 883                 }
 884                 return true;
 885         }
 886
 887         /**
 888          * Format an anchor fragment as it would appear for a given section name
 889          * @param string $text
 890          * @return string
 891          * @access private
 892          */
 893         function sectionAnchor( $text ) {
 894                 global $wgInputEncoding;
 895                 $headline = do_html_entity_decode( $text, ENT_COMPAT, $wgInputEncoding );
 896                 # strip out HTML
 897                 $headline = preg_replace( '/<.*?' . '>/', '', $headline );
 898                 $headline = trim( $headline );
 899                 $sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
 900                 $replacearray = array(
 901                         '%3A' => ':',
 902                         '%' => '.'
 903                 );
 904                 return str_replace(
 905                         array_keys( $replacearray ),
 906                         array_values( $replacearray ),
 907                         $sectionanchor );
 908         }
 909
 910         /**
 911          * Shows a bulletin board style toolbar for common editing functions.
 912          * It can be disabled in the user preferences.
 913          * The necessary JavaScript code can be found in style/wikibits.js.
 914          */
 915         function getEditToolbar() {
 916                 global $wgStylePath, $wgLang, $wgMimeType, $wgJsMimeType;
 917
 918                 /**
 919                  * toolarray an array of arrays which each include the filename of
 920                  * the button image (without path), the opening tag, the closing tag,
 921                  * and optionally a sample text that is inserted between the two when no
 922                  * selection is highlighted.
 923                  * The tip text is shown when the user moves the mouse over the button.
 924                  *
 925                  * Already here are accesskeys (key), which are not used yet until someone
 926                  * can figure out a way to make them work in IE. However, we should make
 927                  * sure these keys are not defined on the edit page.
 928                  */
 929                 $toolarray=array(
 930                         array(  'image'=>'button_bold.png',
 931                                         'open'  =>      "\'\'\'",
 932                                         'close' =>      "\'\'\'",
 933                                         'sample'=>      wfMsg('bold_sample'),
 934                                         'tip'   =>      wfMsg('bold_tip'),
 935                                         'key'   =>      'B'
 936                                 ),
 937                         array(  'image'=>'button_italic.png',
 938                                         'open'  =>      "\'\'",
 939                                         'close' =>      "\'\'",
 940                                         'sample'=>      wfMsg('italic_sample'),
 941                                         'tip'   =>      wfMsg('italic_tip'),
 942                                         'key'   =>      'I'
 943                                 ),
 944                         array(  'image'=>'button_link.png',
 945                                         'open'  =>      '[[',
 946                                         'close' =>      ']]',
 947                                         'sample'=>      wfMsg('link_sample'),
 948                                         'tip'   =>      wfMsg('link_tip'),
 949                                         'key'   =>      'L'
 950                                 ),
 951                         array(  'image'=>'button_extlink.png',
 952                                         'open'  =>      '[',
 953                                         'close' =>      ']',
 954                                         'sample'=>      wfMsg('extlink_sample'),
 955                                         'tip'   =>      wfMsg('extlink_tip'),
 956                                         'key'   =>      'X'
 957                                 ),
 958                         array(  'image'=>'button_headline.png',
 959                                         'open'  =>      "\\n== ",
 960                                         'close' =>      " ==\\n",
 961                                         'sample'=>      wfMsg('headline_sample'),
 962                                         'tip'   =>      wfMsg('headline_tip'),
 963                                         'key'   =>      'H'
 964                                 ),
 965                         array(  'image'=>'button_image.png',
 966                                         'open'  =>      '[['.$wgLang->getNsText(NS_IMAGE).":",
 967                                         'close' =>      ']]',
 968                                         'sample'=>      wfMsg('image_sample'),
 969                                         'tip'   =>      wfMsg('image_tip'),
 970                                         'key'   =>      'D'
 971                                 ),
 972                         array(  'image' =>'button_media.png',
 973                                         'open'  =>      '[['.$wgLang->getNsText(NS_MEDIA).':',
 974                                         'close' =>      ']]',
 975                                         'sample'=>      wfMsg('media_sample'),
 976                                         'tip'   =>      wfMsg('media_tip'),
 977                                         'key'   =>      'M'
 978                                 ),
 979                         array(  'image' =>'button_math.png',
 980                                         'open'  =>      "\\<math\\>",
 981                                         'close' =>      "\\</math\\>",
 982                                         'sample'=>      wfMsg('math_sample'),
 983                                         'tip'   =>      wfMsg('math_tip'),
 984                                         'key'   =>      'C'
 985                                 ),
 986                         array(  'image' =>'button_nowiki.png',
 987                                         'open'  =>      "\\<nowiki\\>",
 988                                         'close' =>      "\\</nowiki\\>",
 989                                         'sample'=>      wfMsg('nowiki_sample'),
 990                                         'tip'   =>      wfMsg('nowiki_tip'),
 991                                         'key'   =>      'N'
 992                                 ),
 993                         array(  'image' =>'button_sig.png',
 994                                         'open'  =>      '--~~~~',
 995                                         'close' =>      '',
 996                                         'sample'=>      '',
 997                                         'tip'   =>      wfMsg('sig_tip'),
 998                                         'key'   =>      'Y'
 999                                 ),
1000                         array(  'image' =>'button_hr.png',
1001                                         'open'  =>      "\\n----\\n",
1002                                         'close' =>      '',
1003                                         'sample'=>      '',
1004                                         'tip'   =>      wfMsg('hr_tip'),
1005                                         'key'   =>      'R'
1006                                 )
1007                 );
1008                 $toolbar ="<script type='$wgJsMimeType'>\n/*<![CDATA[*/\n";
1009
1010                 $toolbar.="document.writeln(\"<div id='toolbar'>\");\n";
1011                 foreach($toolarray as $tool) {
1012
1013                         $image=$wgStylePath.'/common/images/'.$tool['image'];
1014                         $open=$tool['open'];
1015                         $close=$tool['close'];
1016                         $sample = wfEscapeJsString( $tool['sample'] );
1017
1018                         // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
1019                         // Older browsers show a "speedtip" type message only for ALT.
1020                         // Ideally these should be different, realistically they
1021                         // probably don't need to be.
1022                         $tip = wfEscapeJsString( $tool['tip'] );
1023
1024                         #$key = $tool["key"];
1025
1026                         $toolbar.="addButton('$image','$tip','$open','$close','$sample');\n";
1027                 }
1028
1029                 $toolbar.="addInfobox('" . wfEscapeJsString( wfMsg( "infobox" ) ) .
1030                         "','" . wfEscapeJsString( wfMsg( "infobox_alert" ) ) . "');\n";
1031                 $toolbar.="document.writeln(\"</div>\");\n";
1032
1033                 $toolbar.="/*]]>*/\n</script>";
1034                 return $toolbar;
1035         }
1036
1037         /**
1038          * Output preview text only. This can be sucked into the edit page
1039          * via JavaScript, and saves the server time rendering the skin as
1040          * well as theoretically being more robust on the client (doesn't
1041          * disturb the edit box's undo history, won't eat your text on
1042          * failure, etc).
1043          *
1044          * @todo This doesn't include category or interlanguage links.
1045          *       Would need to enhance it a bit, maybe wrap them in XML
1046          *       or something... that might also require more skin
1047          *       initialization, so check whether that's a problem.
1048          */
1049         function livePreview() {
1050                 global $wgOut;
1051                 $wgOut->disable();
1052                 header( 'Content-type: text/xml' );
1053                 header( 'Cache-control: no-cache' );
1054                 # FIXME
1055                 echo $this->getPreviewText( false, false );
1056         }
1057
1058
1059         /**
1060          * Get a diff between the current contents of the edit box and the
1061          * version of the page we're editing from.
1062          *
1063          * If this is a section edit, we'll replace the section as for final
1064          * save and then make a comparison.
1065          *
1066          * @return string HTML
1067          */
1068         function getDiff() {
1069                 require_once( 'DifferenceEngine.php' );
1070                 $oldtext = $this->mArticle->getContent( true );
1071                 $newtext = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
1072                         $this->section, $this->textbox1, $this->summary, $this->edittime );
1073                 $oldtitle = wfMsg( 'currentrev' );
1074                 $newtitle = wfMsg( 'yourtext' );
1075                 if ( $oldtext != wfMsg( 'noarticletext' ) || $newtext != '' ) {
1076                         $difftext = DifferenceEngine::getDiff( $oldtext, $newtext, $oldtitle, $newtitle );
1077                 }
1078
1079                 return '<div id="wikiDiff">' . $difftext . '</div>';
1080         }
1081
1082 }
1083
1084 ?>