removed a debug output when setting up the dropbox for language variants
[lhc/web/wiklou.git] / includes / EditPage.php
index 680b296..16be537 100644 (file)
@@ -1,33 +1,51 @@
-<?
-
-# Splitting edit page/HTML interface from Article...
-# The actual database and text munging is still in Article,
-# but it should get easier to call those from alternate
-# interfaces.
-
+<?php
+# $Id$
+/**
+ * Contain the EditPage class
+ * @package MediaWiki
+ */
+
+/**
+ * Splitting edit page/HTML interface from Article...
+ * The actual database and text munging is still in Article,
+ * but it should get easier to call those from alternate
+ * interfaces.
+ *
+ * @package MediaWiki
+ */
 class EditPage {
        var $mArticle;
        var $mTitle;
        
+       # Form values
+       var $save = false, $preview = false;
+       var $minoredit = false, $watchthis = false;
+       var $textbox1 = '', $textbox2 = '', $summary = '';
+       var $edittime = '', $section = '';
+       var $oldid = 0;
+       
+       /**
+        * @todo document
+        * @param $article
+        */
        function EditPage( $article ) {
                $this->mArticle =& $article;
                global $wgTitle;
                $this->mTitle =& $wgTitle;
        }
 
-       # This is the function that gets called for "action=edit".
-
-       function edit()
-       {
-               global $wgOut, $wgUser, $wgWhitelistEdit;
-               global $wpTextbox1, $wpSummary, $wpSave, $wpPreview;
-               global $wpMinoredit, $wpEdittime, $wpTextbox2;
+       /**
+        * This is the function that gets called for "action=edit".
+        */
+       function edit() {
+               global $wgOut, $wgUser, $wgWhitelistEdit, $wgRequest;
+               // this is not an article
+               $wgOut->setArticleFlag(false);
 
-               $fields = array( "wpTextbox1", "wpSummary", "wpTextbox2" );
-               wfCleanFormFields( $fields );
+               $this->importFormData( $wgRequest );
 
                if ( ! $this->mTitle->userCanEdit() ) {
-                       $wgOut->readOnlyPage( $this->mArticle->getContent(), true );
+                       $wgOut->readOnlyPage( $this->mArticle->getContent( true ), true );
                        return;
                }
                if ( $wgUser->isBlocked() ) {
@@ -39,63 +57,87 @@ class EditPage {
                        return;
                }
                if ( wfReadOnly() ) {
-                       if( isset( $wpSave ) or isset( $wpPreview ) ) {
-                               $this->editForm( "preview" );
+                       if( $this->save || $this->preview ) {
+                               $this->editForm( 'preview' );
                        } else {
-                               $wgOut->readOnlyPage( $this->mArticle->getContent() );
+                               $wgOut->readOnlyPage( $this->mArticle->getContent( true ) );
                        }
                        return;
                }
-               if ( $_SERVER['REQUEST_METHOD'] != "POST" ) unset( $wpSave );
-               if ( isset( $wpSave ) ) {
-                       $this->editForm( "save" );
-               } else if ( isset( $wpPreview ) ) {
-                       $this->editForm( "preview" );
+               if ( $this->save ) {
+                       $this->editForm( 'save' );
+               } else if ( $this->preview ) {
+                       $this->editForm( 'preview' );
                } else { # First time through
-                       $this->editForm( "initial" );
+                       $this->editForm( 'initial' );
                }
        }
 
-       # Since there is only one text field on the edit form,
-       # pressing <enter> will cause the form to be submitted, but
-       # the submit button value won't appear in the query, so we
-       # Fake it here before going back to edit().  This is kind of
-       # ugly, but it helps some old URLs to still work.
+       /**
+        * @todo document
+        */
+       function importFormData( &$request ) {
+               # These fields need to be checked for encoding.
+               # Also remove trailing whitespace, but don't remove _initial_
+               # whitespace from the text boxes. This may be significant formatting.
+               $this->textbox1 = rtrim( $request->getText( 'wpTextbox1' ) );
+               $this->textbox2 = rtrim( $request->getText( 'wpTextbox2' ) );
+               $this->summary = trim( $request->getText( 'wpSummary' ) );
+
+               $this->edittime = $request->getVal( 'wpEdittime' );
+               if( !preg_match( '/^\d{14}$/', $this->edittime )) $this->edittime = '';
+
+               $this->preview = $request->getCheck( 'wpPreview' );
+               $this->save = $request->wasPosted() && !$this->preview;
+               $this->minoredit = $request->getCheck( 'wpMinoredit' );
+               $this->watchthis = $request->getCheck( 'wpWatchthis' );
+
+               $this->oldid = $request->getInt( 'oldid' );
+
+               # Section edit can come from either the form or a link
+               $this->section = $request->getVal( 'wpSection', $request->getVal( 'section' ) );
+       }
 
-       function submit()
-       {
-               global $wpSave, $wpPreview;
-               if ( ! isset( $wpPreview ) ) { $wpSave = 1; }
+       /**
+        * Since there is only one text field on the edit form,
+        * pressing <enter> will cause the form to be submitted, but
+        * the submit button value won't appear in the query, so we
+        * Fake it here before going back to edit().  This is kind of
+        * ugly, but it helps some old URLs to still work.
+        */
+       function submit() {
+               if( !$this->preview ) $this->save = true;
 
                $this->edit();
        }
 
-       # The edit form is self-submitting, so that when things like
-       # preview and edit conflicts occur, we get the same form back
-       # with the extra stuff added.  Only when the final submission
-       # is made and all is well do we actually save and redirect to
-       # the newly-edited page.
-
-       function editForm( $formtype )
-       {
+       /**
+        * The edit form is self-submitting, so that when things like
+        * preview and edit conflicts occur, we get the same form back
+        * with the extra stuff added.  Only when the final submission
+        * is made and all is well do we actually save and redirect to
+        * the newly-edited page.
+        *
+        * @param string $formtype Type of form either : save, initial or preview
+        */
+       function editForm( $formtype ) {
                global $wgOut, $wgUser;
-               global $wpTextbox1, $wpSummary, $wpWatchthis;
-               global $wpSave, $wpPreview;
-               global $wpMinoredit, $wpEdittime, $wpTextbox2, $wpSection;
-               global $oldid, $redirect, $section;
-               global $wgLang;
-               global $wgAllowAnonymousMinor;
-
-               if(isset($wpSection)) { $section=$wpSection; } else { $wpSection=$section; }
+               global $wgLang, $wgParser, $wgTitle;
+               global $wgAllowAnonymousMinor;
+               global $wgWhitelistEdit;
+               global $wgSpamRegex, $wgFilterCallback;
 
                $sk = $wgUser->getSkin();
                $isConflict = false;
-               $wpTextbox1 = rtrim ( $wpTextbox1 ) ; # To avoid text getting longer on each preview
+               // css / js subpages of user pages get a special treatment
+               $isCssJsSubpage = (Namespace::getUser() == $wgTitle->getNamespace() and preg_match("/\\.(css|js)$/", $wgTitle->getText() ));
 
                if(!$this->mTitle->getArticleID()) { # new article
+                       $wgOut->addWikiText(wfmsg('newarticletext'));
+               }
 
-                       $wgOut->addWikiText(wfmsg("newarticletext"));
-
+               if( Namespace::isTalk( $this->mTitle->getNamespace() ) ) {
+                       $wgOut->addWikiText(wfmsg('talkpagetext'));
                }
 
                # Attempt submission here.  This will check for edit conflicts,
@@ -103,7 +145,16 @@ class EditPage {
                # that edit() already checked just in case someone tries to sneak
                # in the back door with a hand-edited submission URL.
 
-               if ( "save" == $formtype ) {
+               if ( 'save' == $formtype ) {
+                       # Check for spam
+                       if ( $wgSpamRegex && preg_match( $wgSpamRegex, $this->textbox1, $matches ) ) {
+                               $this->spamPage ( $matches );
+                               return;
+                       }
+                       if ( $wgFilterCallback && $wgFilterCallback( $this->mTitle, $this->textbox1, $this->section ) ) {
+                               # Error messages or other handling should be performed by the filter function
+                               return;
+                       }
                        if ( $wgUser->isBlocked() ) {
                                $this->blockedIPpage();
                                return;
@@ -116,44 +167,78 @@ class EditPage {
                                $wgOut->readOnlyPage();
                                return;
                        }
-                       # If article is new, insert it.
 
-                       $aid = $this->mTitle->getArticleID();
+                       # If article is new, insert it.
+                       $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
                        if ( 0 == $aid ) {
-                               # we need to strip Windoze linebreaks because some browsers
-                               # append them and the string comparison fails
-                               if ( ( "" == $wpTextbox1 ) ||
-                                 ( wfMsg( "newarticletext" ) == rtrim( preg_replace("/\r/","",$wpTextbox1) ) ) ) {
-                                       $wgOut->redirect(  wfLocalUrl(
-                                         $this->mTitle->getPrefixedURL() ) );
+                               # Don't save a new article if it's blank.
+                               if ( ( '' == $this->textbox1 ) ||
+                                 ( wfMsg( 'newarticletext' ) == $this->textbox1 ) ) {
+                                       $wgOut->redirect( $this->mTitle->getFullURL() );
                                        return;
                                }
-                               $this->mArticle->insertNewArticle( $wpTextbox1, $wpSummary, $wpMinoredit, $wpWatchthis );
+                               $this->mArticle->insertNewArticle( $this->textbox1, $this->summary, $this->minoredit, $this->watchthis );
                                return;
                        }
+
                        # Article exists. Check for edit conflict.
-                       # Don't check for conflict when appending a comment - this should always work
 
                        $this->mArticle->clear(); # Force reload of dates, etc.
-                       if ( $section!="new" && ( $this->mArticle->getTimestamp() != $wpEdittime ) ) {
+                       $this->mArticle->forUpdate( true ); # Lock the article
+
+                       if( ( $this->section != 'new' ) &&
+                               ($this->mArticle->getTimestamp() != $this->edittime ) ) {
                                $isConflict = true;
                        }
-                       $u = $wgUser->getID();
+                       $userid = $wgUser->getID();
 
-                       # Supress edit conflict with self
+                       $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
+                               $this->section, $this->textbox1, $this->summary);
+                       # Suppress edit conflict with self
 
-                       if ( ( 0 != $u ) && ( $this->mArticle->getUser() == $u ) ) {
+                       if ( ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
                                $isConflict = false;
                        } else {
                                # switch from section editing to normal editing in edit conflict
                                if($isConflict) {
-                                       $section="";$wpSection="";
+                                       # Attempt merge
+                                       if( $this->mergeChangesInto( $text ) ){
+                                               // Successful merge! Maybe we should tell the user the good news?
+                                               $isConflict = false;
+                                       } else {
+                                               $this->section = '';
+                                               $this->textbox1 = $text;
+                                       }
                                }
-
                        }
                        if ( ! $isConflict ) {
-                               # All's well: update the article here
-                               if($this->mArticle->updateArticle( $wpTextbox1, $wpSummary, $wpMinoredit, $wpWatchthis, $wpSection ))
+                               # All's well
+                               $sectionanchor = '';
+                               if( $this->section != '' ) {
+                                       # Try to get a section anchor from the section source, redirect to edited section if header found
+                                       # XXX: might be better to integrate this into Article::getTextOfLastEditWithSectionReplacedOrAdded
+                                       # for duplicate heading checking and maybe parsing
+                                       $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
+                                       # we can't deal with anchors, includes, html etc in the header for now, 
+                                       # headline would need to be parsed to improve this
+                                       #if($hasmatch and strlen($matches[2]) > 0 and !preg_match( "/[\\['{<>]/", $matches[2])) {
+                                       if($hasmatch and strlen($matches[2]) > 0) {
+                                               global $wgInputEncoding;
+                                               $headline = do_html_entity_decode( $matches[2], ENT_COMPAT, $wgInputEncoding );
+                                               # strip out HTML 
+                                               $headline = preg_replace( "/<.*?" . ">/","",$headline );
+                                               $headline = trim( $headline );
+                                               $sectionanchor = '#'.urlencode( str_replace(' ', '_', $headline ) );
+                                               $replacearray = array(
+                                                       '%3A' => ':',
+                                                       '%' => '.'
+                                               );
+                                               $sectionanchor = str_replace(array_keys($replacearray),array_values($replacearray),$sectionanchor);
+                                       }
+                               }
+       
+                               # update the article here
+                               if($this->mArticle->updateArticle( $text, $this->summary, $this->minoredit, $this->watchthis, '', $sectionanchor ))
                                        return;
                                else
                                        $isConflict = true;
@@ -162,224 +247,380 @@ class EditPage {
                # First time through: get contents, set time for conflict
                # checking, etc.
 
-               if ( "initial" == $formtype ) {
-                       $wpEdittime = $this->mArticle->getTimestamp();
-                       $wpTextbox1 = $this->mArticle->getContent(true);
-                       $wpSummary = "";
+               if ( 'initial' == $formtype ) {
+                       $this->edittime = $this->mArticle->getTimestamp();
+                       $this->textbox1 = $this->mArticle->getContent( true );
+                       $this->summary = '';
+                       $this->proxyCheck();
                }
-               $wgOut->setRobotpolicy( "noindex,nofollow" );
-               
+               $wgOut->setRobotpolicy( 'noindex,nofollow' );
+
                # Enabled article-related sidebar, toplinks, etc.
                $wgOut->setArticleRelated( true );
 
                if ( $isConflict ) {
-                       $s = wfMsg( "editconflict", $this->mTitle->getPrefixedText() );
+                       $s = wfMsg( 'editconflict', $this->mTitle->getPrefixedText() );
                        $wgOut->setPageTitle( $s );
-                       $wgOut->addHTML( wfMsg( "explainconflict" ) );
+                       $wgOut->addHTML( wfMsg( 'explainconflict' ) );
 
-                       $wpTextbox2 = $wpTextbox1;
-                       $wpTextbox1 = $this->mArticle->getContent(true);
-                       $wpEdittime = $this->mArticle->getTimestamp();
+                       $this->textbox2 = $this->textbox1;
+                       $this->textbox1 = $this->mArticle->getContent( true );
+                       $this->edittime = $this->mArticle->getTimestamp();
                } else {
-                       $s = wfMsg( "editing", $this->mTitle->getPrefixedText() );
+                       $s = wfMsg( 'editing', $this->mTitle->getPrefixedText() );
 
-                       if($section!="") {
-                               if($section=="new") {
-                                       $s.=wfMsg("commentedit");
+                       if( $this->section != '' ) {
+                               if( $this->section == 'new' ) {
+                                       $s.=wfMsg('commentedit');
                                } else {
-                                       $s.=wfMsg("sectionedit");
+                                       $s.=wfMsg('sectionedit');
+                               }
+                               if(!$this->preview) {
+                                       $sectitle=preg_match("/^=+(.*?)=+/mi",
+                                       $this->textbox1,
+                                       $matches);
+                                       if( !empty( $matches[1] ) ) {
+                                               $this->summary = "/* ". trim($matches[1])." */ ";
+                                       }
                                }
                        }
                        $wgOut->setPageTitle( $s );
-                       if ( $oldid ) {
+                       if ( $this->oldid ) {
                                $this->mArticle->setOldSubtitle();
-                               $wgOut->addHTML( wfMsg( "editingold" ) );
+                               $wgOut->addHTML( wfMsg( 'editingold' ) );
                        }
                }
 
                if( wfReadOnly() ) {
-                       $wgOut->addHTML( "<strong>" .
-                               wfMsg( "readonlywarning" ) .
-                               "</strong>" );
+                       $wgOut->addHTML( '<strong>' .
+                       wfMsg( 'readonlywarning' ) .
+                       "</strong>" );
+               } else if ( $isCssJsSubpage and 'preview' != $formtype) {
+                       $wgOut->addHTML( wfMsg( 'usercssjsyoucanpreview' ));
                }
                if( $this->mTitle->isProtected() ) {
-                       $wgOut->addHTML( "<strong>" . wfMsg( "protectedpagewarning" ) .
+                       $wgOut->addHTML( '<strong>' . wfMsg( 'protectedpagewarning' ) .
                          "</strong><br />\n" );
                }
 
-               $kblength = (int)(strlen( $wpTextbox1 ) / 1024);
+               $kblength = (int)(strlen( $this->textbox1 ) / 1024);
                if( $kblength > 29 ) {
-                       $wgOut->addHTML( "<strong>" .
-                               wfMsg( "longpagewarning", $kblength )
-                               . "</strong>" );
+                       $wgOut->addHTML( '<strong>' .
+                               wfMsg( 'longpagewarning', $wgLang->formatNum( $kblength ) )
+                               . '</strong>' );
                }
 
-               $rows = $wgUser->getOption( "rows" );
-               $cols = $wgUser->getOption( "cols" );
+               $rows = $wgUser->getOption( 'rows' );
+               $cols = $wgUser->getOption( 'cols' );
 
-               $ew = $wgUser->getOption( "editwidth" );
+               $ew = $wgUser->getOption( 'editwidth' );
                if ( $ew ) $ew = " style=\"width:100%\"";
-               else $ew = "" ;
-
-               $q = "action=submit";
-               if ( "no" == $redirect ) { $q .= "&redirect=no"; }
-               $action = wfEscapeHTML( wfLocalUrl( $this->mTitle->getPrefixedURL(), $q ) );
-
-               $summary = wfMsg( "summary" );
-               $subject = wfMsg("subject");
-               $minor = wfMsg( "minoredit" );
-               $watchthis = wfMsg ("watchthis");
-               $save = wfMsg( "savearticle" );
-               $prev = wfMsg( "showpreview" );
-
-               $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedURL(),
-                 wfMsg( "cancel" ) );
-               $edithelp = $sk->makeKnownLink( wfMsg( "edithelppage" ),
-                 wfMsg( "edithelp" ) );
-               $copywarn = wfMsg( "copyrightwarning", $sk->makeKnownLink(
-                 wfMsg( "copyrightpage" ) ) );
-
-               $wpTextbox1 = wfEscapeHTML( $wpTextbox1 );
-               $wpTextbox2 = wfEscapeHTML( $wpTextbox2 );
-               $wpSummary = wfEscapeHTML( $wpSummary );
-
-
-               if($wgUser->getOption("showtoolbar")) {
-                       // prepare toolbar for edit buttons
-                       $toolbar=$sk->getEditToolbar();
+               else $ew = '';
+
+               $q = 'action=submit';
+               #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
+               $action = $this->mTitle->escapeLocalURL( $q );
+
+               $summary = wfMsg('summary');
+               $subject = wfMsg('subject');
+               $minor   = wfMsg('minoredit');
+               $watchthis = wfMsg ('watchthis');
+               $save = wfMsg('savearticle');
+               $prev = wfMsg('showpreview');
+
+               $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
+                               wfMsg('cancel') );
+               $edithelpurl = $sk->makeUrl( wfMsg( 'edithelppage' ));
+               $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
+                       htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
+                       htmlspecialchars( wfMsg( 'newwindow' ) );
+
+               global $wgRightsText;
+               $copywarn = "<div id=\"editpage-copywarn\">\n" .
+                       wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
+                               '[[' . wfMsg( 'copyrightpage' ) . ']]',
+                               $wgRightsText ) . "\n</div>";
+
+               if( $wgUser->getOption('showtoolbar') and !$isCssJsSubpage ) {
+                       # prepare toolbar for edit buttons
+                       $toolbar = $sk->getEditToolbar();
+               } else {
+                       $toolbar = '';
                }
 
                // activate checkboxes if user wants them to be always active
-               if (!$wpPreview && $wgUser->getOption("watchdefault")) $wpWatchthis=1;
-               if (!$wpPreview && $wgUser->getOption("minordefault")) $wpMinoredit=1;
-
-               // activate checkbox also if user is already watching the page,
-               // require wpWatchthis to be unset so that second condition is not
-               // checked unnecessarily
-               if (!$wpWatchthis && !$wpPreview && $this->mTitle->userIsWatching()) $wpWatchthis=1;
+               if( !$this->preview ) {
+                       if( $wgUser->getOption( 'watchdefault' ) ) $this->watchthis = true;
+                       if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
+
+                       // activate checkbox also if user is already watching the page,
+                       // require wpWatchthis to be unset so that second condition is not
+                       // checked unnecessarily
+                       if( !$this->watchthis && $this->mTitle->userIsWatching() ) $this->watchthis = true;
+               }
 
-                $minoredithtml = "";
+               $minoredithtml = '';
 
                if ( 0 != $wgUser->getID() || $wgAllowAnonymousMinor ) {
                        $minoredithtml =
-                       "<input tabindex=3 type=checkbox value=1 name='wpMinoredit'".($wpMinoredit?" checked":"")." id='wpMinoredit'>".
-                       "<label for='wpMinoredit'>{$minor}</label>";
+                               "<input tabindex='3' type='checkbox' value='1' name='wpMinoredit'".($this->minoredit?" checked='checked'":"").
+                               " accesskey='".wfMsg('accesskey-minoredit')."' id='wpMinoredit' />".
+                               "<label for='wpMinoredit' title='".wfMsg('tooltip-minoredit')."'>{$minor}</label>";
                }
-           
-               $watchhtml = "";
-           
-               if ( 0 != $wgUser->getID() ) {
-                       $watchhtml = "<input tabindex=4 type=checkbox name='wpWatchthis'".($wpWatchthis?" checked":"")." id='wpWatchthis'>".
-                       "<label for='wpWatchthis'>{$watchthis}</label>";
 
+               $watchhtml = '';
+
+               if ( 0 != $wgUser->getID() ) {
+                       $watchhtml = "<input tabindex='4' type='checkbox' name='wpWatchthis'".($this->watchthis?" checked='checked'":"").
+                               " accesskey='".wfMsg('accesskey-watch')."' id='wpWatchthis'  />".
+                               "<label for='wpWatchthis' title='".wfMsg('tooltip-watch')."'>{$watchthis}</label>";
                }
-           
-               $checkboxhtml= $minoredithtml . $watchhtml . "<br>";
 
-               if ( "preview" == $formtype) {
+               $checkboxhtml = $minoredithtml . $watchhtml . '<br />';
 
-                       $previewhead="<h2>" . wfMsg( "preview" ) . "</h2>\n<p><large><center><font color=\"#cc0000\">" .
-                       wfMsg( "note" ) . wfMsg( "previewnote" ) . "</font></center></large><P>\n";
+               if ( 'preview' == $formtype) {
+                       $previewhead='<h2>' . wfMsg( 'preview' ) . "</h2>\n<p><center><font color=\"#cc0000\">" .
+                               wfMsg( 'note' ) . wfMsg( 'previewnote' ) . "</font></center></p>\n";
                        if ( $isConflict ) {
-                               $previewhead.="<h2>" . wfMsg( "previewconflict" ) .
-                                 "</h2>\n";
+                               $previewhead.='<h2>' . wfMsg( 'previewconflict' ) .
+                                       "</h2>\n";
                        }
-                       $previewtext = wfUnescapeHTML( $wpTextbox1 );
 
-                       if($wgUser->getOption("previewontop")) {
-                               $wgOut->addHTML($previewhead);
-                               $wgOut->addWikiText( $this->mArticle->preSaveTransform( $previewtext ) ."\n\n");
+                       $parserOptions = ParserOptions::newFromUser( $wgUser );
+                       $parserOptions->setEditSection( false );
+                       $parserOptions->setEditSectionOnRightClick( false );
+
+                       # don't parse user css/js, show message about preview
+                       # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
+
+                       if ( $isCssJsSubpage ) {
+                               if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
+                                       $previewtext = wfMsg('usercsspreview');
+                               } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
+                                       $previewtext = wfMsg('userjspreview');
+                               }
+                               $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
+                               $wgOut->addHTML( $parserOutput->mText );
+                       } else {
+                               $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $this->textbox1 ) ."\n\n",
+                                               $wgTitle, $parserOptions );
+                               $previewHTML = $parserOutput->mText;
+
+                               if($wgUser->getOption('previewontop')) {
+                                       $wgOut->addHTML($previewhead);
+                                       $wgOut->addHTML($previewHTML);
+                               }
+                               $wgOut->addCategoryLinks($parserOutput->getCategoryLinks());
+                               $wgOut->addLanguageLinks($parserOutput->getLanguageLinks());
+                               $wgOut->addHTML( "<br style=\"clear:both;\" />\n" );
                        }
-                       $wgOut->addHTML( "<br clear=\"all\" />\n" );
                }
 
                # if this is a comment, show a subject line at the top, which is also the edit summary.
                # Otherwise, show a summary field at the bottom
-               if($section=="new") {
-
-                       $commentsubject="{$subject}: <input tabindex=1 type=text value=\"{$wpSummary}\" name=\"wpSummary\" maxlength=200 size=60><br>";
-               } else {
+               $summarytext = htmlspecialchars( $wgLang->recodeForEdit( $this->summary ) ); # FIXME
+                       if( $this->section == 'new' ) {
+                               $commentsubject="{$subject}: <input tabindex='1' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
+                               $editsummary = '';
+                       } else {
+                               $commentsubject = '';
+                               $editsummary="{$summary}: <input tabindex='3' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
+                       }
 
-                       $editsummary="{$summary}: <input tabindex=3 type=text value=\"{$wpSummary}\" name=\"wpSummary\" maxlength=200 size=60><br>";
+               if( !$this->preview ) {
+               # Don't select the edit box on preview; this interferes with seeing what's going on.
+                       $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
                }
-
-               if( $_GET["action"] == "edit" ) {
-                       # Don't select the edit box on preview; this interferes with seeing what's going on.
-                       $wgOut->setOnloadHandler( "document.editform.wpTextbox1.focus()" );
+               # Prepare a list of templates used by this page
+               $db =& wfGetDB( DB_SLAVE );
+               $cur = $db->tableName( 'cur' );
+               $links = $db->tableName( 'links' );
+               $id = $this->mTitle->getArticleID();
+               $sql = "SELECT cur_namespace,cur_title,cur_id ".
+                       "FROM $cur,$links WHERE l_to=cur_id AND l_from={$id} and cur_namespace=".NS_TEMPLATE;
+               $res = $db->query( $sql, "EditPage::editform" );
+
+               if ( $db->numRows( $res ) ) {
+                       $templates = '<br />'. wfMsg( 'templatesused' ) . '<ul>';
+                       while ( $row = $db->fetchObject( $res ) ) {
+                               if ( $titleObj = Title::makeTitle( $row->cur_namespace, $row->cur_title ) ) {
+                                       $templates .= '<li>' . $sk->makeLinkObj( $titleObj ) . '</li>';
+                               }
+                       }
+                       $templates .= '</ul>';
+               } else {        
+                       $templates = '';
                }
                $wgOut->addHTML( "
 {$toolbar}
 <form id=\"editform\" name=\"editform\" method=\"post\" action=\"$action\"
 enctype=\"application/x-www-form-urlencoded\">
 {$commentsubject}
-<textarea tabindex=2 name=\"wpTextbox1\" rows={$rows}
-cols={$cols}{$ew} wrap=\"virtual\">" .
-$wgLang->recodeForEdit( $wpTextbox1 ) .
+<textarea tabindex='1' accesskey=\",\" name=\"wpTextbox1\" rows='{$rows}'
+cols='{$cols}'{$ew}>" .
+htmlspecialchars( $wgLang->recodeForEdit( $this->textbox1 ) ) .
 "
 </textarea>
-<br>{$editsummary}
+<br />{$editsummary}
 {$checkboxhtml}
-<input tabindex=5 type=submit value=\"{$save}\" name=\"wpSave\" accesskey=\"s\">
-<input tabindex=6 type=submit value=\"{$prev}\" name=\"wpPreview\" accesskey=\"p\">
-<em>{$cancel}</em> | <em>{$edithelp}</em>
-<br><br>{$copywarn}
-<input type=hidden value=\"{$section}\" name=\"wpSection\">
-<input type=hidden value=\"{$wpEdittime}\" name=\"wpEdittime\">\n" );
+<input tabindex='5' id='wpSave' type='submit' value=\"{$save}\" name=\"wpSave\" accesskey=\"".wfMsg('accesskey-save')."\"".
+" title=\"".wfMsg('tooltip-save')."\"/>
+<input tabindex='6' id='wpPreview' type='submit' value=\"{$prev}\" name=\"wpPreview\" accesskey=\"".wfMsg('accesskey-preview')."\"".
+" title=\"".wfMsg('tooltip-preview')."\"/>
+<em>{$cancel}</em> | <em>{$edithelp}</em>{$templates}" );
+               $wgOut->addWikiText( $copywarn );
+               $wgOut->addHTML( "
+<input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
+<input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n" );
 
                if ( $isConflict ) {
+                       require_once( "DifferenceEngine.php" );
                        $wgOut->addHTML( "<h2>" . wfMsg( "yourdiff" ) . "</h2>\n" );
-                       DifferenceEngine::showDiff( $wpTextbox2, $wpTextbox1,
+                       DifferenceEngine::showDiff( $this->textbox2, $this->textbox1,
                          wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
 
                        $wgOut->addHTML( "<h2>" . wfMsg( "yourtext" ) . "</h2>
-<textarea tabindex=6 name=\"wpTextbox2\" rows={$rows} cols={$cols} wrap=virtual>"
-. $wgLang->recodeForEdit( $wpTextbox2 ) .
+<textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
+. htmlspecialchars( $wgLang->recodeForEdit( $this->textbox2 ) ) .
 "
 </textarea>" );
                }
                $wgOut->addHTML( "</form>\n" );
                if($formtype =="preview" && !$wgUser->getOption("previewontop")) {
                        $wgOut->addHTML($previewhead);
-                       $wgOut->addWikiText( $this->mArticle->preSaveTransform( $previewtext ) );
+                       $wgOut->addHTML($previewHTML);
                }
-
        }
 
-       function blockedIPpage()
-       {
-               global $wgOut, $wgUser, $wgLang;
+       /**
+        * @todo document
+        */
+       function blockedIPpage() {
+               global $wgOut, $wgUser, $wgLang, $wgIP;
 
-               $wgOut->setPageTitle( wfMsg( "blockedtitle" ) );
-               $wgOut->setRobotpolicy( "noindex,nofollow" );
+               $wgOut->setPageTitle( wfMsg( 'blockedtitle' ) );
+               $wgOut->setRobotpolicy( 'noindex,nofollow' );
                $wgOut->setArticleRelated( false );
 
                $id = $wgUser->blockedBy();
                $reason = $wgUser->blockedFor();
-               $ip = getenv( "REMOTE_ADDR" );
-
-               $name = User::whoIs( $id );
-               $link = "[[" . $wgLang->getNsText( Namespace::getUser() ) .
+               $ip = $wgIP;
+               
+               if ( is_numeric( $id ) ) {
+                       $name = User::whoIs( $id );
+               } else {
+                       $name = $id;
+               }
+               $link = '[[' . $wgLang->getNsText( Namespace::getUser() ) .
                  ":{$name}|{$name}]]";
 
-               $wgOut->addWikiText( wfMsg( "blockedtext", $link, $reason, $ip ) );
+               $wgOut->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name ) );
                $wgOut->returnToMain( false );
        }
 
+       /**
+        * @todo document
+        */
+       function userNotLoggedInPage() {
+               global $wgOut, $wgUser, $wgLang;
 
+               $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
+               $wgOut->setRobotpolicy( 'noindex,nofollow' );
+               $wgOut->setArticleRelated( false );
 
-       function userNotLoggedInPage()
-       {
-               global $wgOut, $wgUser, $wgLang;
+               $wgOut->addWikiText( wfMsg( 'whitelistedittext' ) );
+               $wgOut->returnToMain( false );
+       }
 
-               $wgOut->setPageTitle( wfMsg( "whitelistedittitle" ) );
-               $wgOut->setRobotpolicy( "noindex,nofollow" );
+       /**
+        * @todo document
+        */
+       function spamPage ( $matches = array() )
+       {
+               global $wgOut;
+               $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
+               $wgOut->setRobotpolicy( 'noindex,nofollow' );
                $wgOut->setArticleRelated( false );
 
-               $wgOut->addWikiText( wfMsg( "whitelistedittext" ) );
+               $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
+               if ( isset ( $matches[0] ) ) {
+                       $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$matches[0]}</nowiki>" ) );
+               }
                $wgOut->returnToMain( false );
        }
 
+       /**
+        * Forks processes to scan the originating IP for an open proxy server
+        * MemCached can be used to skip IPs that have already been scanned
+        */
+       function proxyCheck() {
+               global $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath;
+               global $wgIP, $wgUseMemCached, $wgMemc, $wgDBname, $wgProxyMemcExpiry;
+               
+               if ( !$wgBlockOpenProxies ) {
+                       return;
+               }
+               
+               # Get MemCached key
+               $skip = false;
+               if ( $wgUseMemCached ) {
+                       $mcKey = $wgDBname.':proxy:ip:'.$wgIP;
+                       $mcValue = $wgMemc->get( $mcKey );
+                       if ( $mcValue ) {
+                               $skip = true;
+                       }
+               }
 
+               # Fork the processes
+               if ( !$skip ) {
+                       $title = Title::makeTitle( NS_SPECIAL, 'Blockme' );
+                       $iphash = md5( $wgIP . $wgProxyKey );
+                       $url = $title->getFullURL( 'ip='.$iphash );
+
+                       foreach ( $wgProxyPorts as $port ) {
+                               $params = implode( ' ', array(
+                                                       escapeshellarg( $wgProxyScriptPath ),
+                                                       escapeshellarg( $wgIP ),
+                                                       escapeshellarg( $port ),
+                                                       escapeshellarg( $url )
+                                                       ));
+                               exec( "php $params &>/dev/null &" );
+                       }
+                       # Set MemCached key
+                       if ( $wgUseMemCached ) {
+                               $wgMemc->set( $mcKey, 1, $wgProxyMemcExpiry );
+                       }
+               }
+       }
+
+       /**
+        * @access private
+        * @todo document
+        */
+       function mergeChangesInto( &$text ){
+               $fname = 'EditPage::mergeChangesInto';
+               $oldDate = $this->edittime;
+               $dbw =& wfGetDB( DB_MASTER );
+               $obj = $dbw->getArray( 'cur', array( 'cur_text' ), array( 'cur_id' => $this->mTitle->getArticleID() ), 
+                       $fname, 'FOR UPDATE' );
+
+               $yourtext = $obj->cur_text;
+               $ns = $this->mTitle->getNamespace();
+               $title = $this->mTitle->getDBkey();
+               $obj = $dbw->getArray( 'old', 
+                       array( 'old_text','old_flags'), 
+                       array( 'old_namespace' => $ns, 'old_title' => $title, 
+                               'old_timestamp' => $dbw->timestamp($oldDate)),
+                       $fname );
+               $oldText = Article::getRevisionText( $obj );
+               
+               if(wfMerge($oldText, $text, $yourtext, $result)){
+                       $text = $result;
+                       return true;
+               } else {
+                       return false;
+               }
+       }
 }
 
 ?>