refactored HTMLForm show() into three methods, in case you want to process a form...
[lhc/web/wiklou.git] / includes / EditPage.php
index 99cc487..f1b5998 100644 (file)
@@ -45,7 +45,6 @@ class EditPage {
        var $mArticle;
        var $mTitle;
        var $action;
-       var $mMetaData = '';
        var $isConflict = false;
        var $isCssJsSubpage = false;
        var $isCssSubpage = false;
@@ -97,7 +96,7 @@ class EditPage {
         * @todo document
         * @param $article
         */
-       function EditPage( $article ) {
+       function __construct( $article ) {
                $this->mArticle =& $article;
                $this->mTitle = $article->getTitle();
                $this->action = 'submit';
@@ -121,6 +120,7 @@ class EditPage {
 
        /**
         * Fetch initial editing page content.
+        * @returns mixed string on success, $def_text for invalid sections
         * @private
         */
        function getContent( $def_text = '' ) {
@@ -129,18 +129,19 @@ class EditPage {
                wfProfileIn( __METHOD__ );
                # Get variables from query string :P
                $section = $wgRequest->getVal( 'section' );
-               $preload = $wgRequest->getVal( 'preload' );
+
+               $preload = $wgRequest->getVal( 'preload',
+                       // Custom preload text for new sections
+                       $section === 'new' ? 'MediaWiki:addsection-preload' : '' );
                $undoafter = $wgRequest->getVal( 'undoafter' );
                $undo = $wgRequest->getVal( 'undo' );
 
-               $text = '';
                // For message page not locally set, use the i18n message.
                // For other non-existent articles, use preload text if any.
                if ( !$this->mTitle->exists() ) {
                        if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
                                # If this is a system message, get the default text.
                                list( $message, $lang ) = $wgMessageCache->figureMessage( $wgContLang->lcfirst( $this->mTitle->getText() ) );
-                               $wgMessageCache->loadAllMessages( $lang );
                                $text = wfMsgGetKey( $message, false, $lang, false );
                                if( wfEmptyMsg( $message, $text ) )
                                        $text = $this->getPreloadedText( $preload );
@@ -201,6 +202,7 @@ class EditPage {
                                if ( $section == 'new' ) {
                                        $text = $this->getPreloadedText( $preload );
                                } else {
+                                       // Get section edit text (returns $def_text for invalid sections)
                                        $text = $wgParser->getSection( $text, $section, $def_text );
                                }
                        }
@@ -216,119 +218,39 @@ class EditPage {
        }
 
        /**
-        * Get the contents of a page from its title and remove includeonly tags
+        * Get the contents to be preloaded into the box, either set by
+        * an earlier setPreloadText() or by loading the given page.
         *
-        * @param $preload String: the title of the page.
-        * @return string The contents of the page.
+        * @param $preload String: representing the title to preload from.
+        * @return String
         */
        protected function getPreloadedText( $preload ) {
+               global $wgUser, $wgParser;
                if ( !empty( $this->mPreloadText ) ) {
                        return $this->mPreloadText;
-               } elseif ( $preload === '' ) {
-                       return '';
-               } else {
-                       $preloadTitle = Title::newFromText( $preload );
-                       if ( isset( $preloadTitle ) && $preloadTitle->userCanRead() ) {
-                               $rev = Revision::newFromTitle( $preloadTitle );
-                               if ( is_object( $rev ) ) {
-                                       $text = $rev->getText();
-                                       // TODO FIXME: AAAAAAAAAAA, this shouldn't be implementing
-                                       // its own mini-parser! -ævar
-                                       $text = preg_replace( '~</?includeonly>~', '', $text );
-                                       return $text;
-                               } else
-                                       return '';
-                       }
-               }
-       }
-
-       /**
-        * This is the function that extracts metadata from the article body on the first view.
-        * To turn the feature on, set $wgUseMetadataEdit = true ; in LocalSettings
-        *  and set $wgMetadataWhitelist to the *full* title of the template whitelist
-        */
-       function extractMetaDataFromArticle () {
-               global $wgUseMetadataEdit, $wgMetadataWhitelist, $wgContLang;
-               $this->mMetaData = '';
-               if ( !$wgUseMetadataEdit ) return;
-               if ( $wgMetadataWhitelist == '' ) return;
-               $s = '';
-               $t = $this->getContent();
-
-               # MISSING : <nowiki> filtering
-
-               # Categories and language links
-               $t = explode( "\n" , $t );
-               $catlow = strtolower( $wgContLang->getNsText( NS_CATEGORY ) );
-               $cat = $ll = array();
-               foreach ( $t as $key => $x ) {
-                       $y = trim( strtolower ( $x ) );
-                       while ( substr( $y , 0 , 2 ) == '[[' ) {
-                               $y = explode( ']]' , trim ( $x ) );
-                               $first = array_shift( $y );
-                               $first = explode( ':' , $first );
-                               $ns = array_shift( $first );
-                               $ns = trim( str_replace( '[' , '' , $ns ) );
-                               if ( $wgContLang->getLanguageName( $ns ) || strtolower( $ns ) == $catlow ) {
-                                       $add = '[[' . $ns . ':' . implode( ':' , $first ) . ']]';
-                                       if ( strtolower( $ns ) == $catlow ) $cat[] = $add;
-                                       else $ll[] = $add;
-                                       $x = implode( ']]', $y );
-                                       $t[$key] = $x;
-                                       $y = trim( strtolower( $x ) );
-                               } else {
-                                       $x = implode( ']]' , $y );
-                                       $y = trim( strtolower( $x ) );
-                               }
-                       }
-               }
-               if ( count( $cat ) ) $s .= implode( ' ' , $cat ) . "\n";
-               if ( count( $ll ) ) $s .= implode( ' ' , $ll ) . "\n";
-               $t = implode( "\n" , $t );
-
-               # Load whitelist
-               $sat = array () ; # stand-alone-templates; must be lowercase
-               $wl_title = Title::newFromText( $wgMetadataWhitelist );
-               $wl_article = new Article ( $wl_title );
-               $wl = explode ( "\n" , $wl_article->getContent() );
-               foreach ( $wl AS $x ) {
-                       $isentry = false;
-                       $x = trim ( $x );
-                       while ( substr ( $x , 0 , 1 ) == '*' ) {
-                               $isentry = true;
-                               $x = trim ( substr ( $x , 1 ) );
-                       }
-                       if ( $isentry ) {
-                               $sat[] = strtolower ( $x );
-                       }
-
-               }
-
-               # Templates, but only some
-               $t = explode( '{{' , $t );
-               $tl = array() ;
-               foreach ( $t as $key => $x ) {
-                       $y = explode( '}}' , $x , 2 );
-                       if ( count( $y ) == 2 ) {
-                               $z = $y[0];
-                               $z = explode( '|' , $z );
-                               $tn = array_shift( $z );
-                               if ( in_array( strtolower( $tn ) , $sat ) ) {
-                                       $tl[] = '{{' . $y[0] . '}}';
-                                       $t[$key] = $y[1];
-                                       $y = explode( '}}' , $y[1] , 2 );
+               } elseif ( $preload !== '' ) {
+                       $title = Title::newFromText( $preload );
+                       # Check for existence to avoid getting MediaWiki:Noarticletext
+                       if ( isset( $title ) && $title->exists() && $title->userCanRead() ) {
+                               $article = new Article( $title );
+
+                               if ( $article->isRedirect() ) {
+                                       $title = Title::newFromRedirectRecurse( $article->getContent() );
+                                       # Redirects to missing titles are displayed, to hidden pages are followed
+                                       # Copying observed behaviour from ?action=view
+                                       if ( $title->exists() ) {
+                                               if ($title->userCanRead() ) {
+                                                       $article = new Article( $title );
+                                               } else {
+                                                       return "";
+                                               }
+                                       }
                                }
-                               else $t[$key] = '{{' . $x;
+                               $parserOptions = ParserOptions::newFromUser( $wgUser );
+                               return $wgParser->getPreloadText( $article->getContent(), $title, $parserOptions );
                        }
-                       else if ( $key != 0 ) $t[$key] = '{{' . $x;
-                       else $t[$key] = $x;
                }
-               if ( count( $tl ) ) $s .= implode( ' ' , $tl );
-               $t = implode( '' , $t );
-
-               $t = str_replace( "\n\n\n", "\n", $t );
-               $this->mArticle->mContent = $t;
-               $this->mMetaData = $s;
+               return '';
        }
 
        /*
@@ -352,6 +274,24 @@ class EditPage {
                return $this->deletedSinceEdit;
        }
 
+       /**
+        * Checks whether the user entered a skin name in uppercase,
+        * e.g. "User:Example/Monobook.css" instead of "monobook.css"
+        */
+       protected function isWrongCaseCssJsPage() {
+               if( $this->mTitle->isCssJsSubpage() ) {
+                       $name = $this->mTitle->getSkinFromCssJsSubpage();
+                       $skins = array_merge(
+                               array_keys( Skin::getSkinNames() ),
+                               array( 'common' )
+                       );
+                       return !in_array( $name, $skins )
+                               && in_array( strtolower( $name ), $skins );
+               } else {
+                       return false;
+               }
+       }
+
        function submit() {
                $this->edit();
        }
@@ -368,7 +308,7 @@ class EditPage {
         * the newly-edited page.
         */
        function edit() {
-               global $wgOut, $wgRequest;
+               global $wgOut, $wgRequest, $wgUser;
                // Allow extensions to modify/prevent this form or submission
                if ( !wfRunHooks( 'AlternateEdit', array( $this ) ) ) {
                        return;
@@ -395,12 +335,18 @@ class EditPage {
                        $this->preview = true;
                }
 
-               $wgOut->addScriptFile( 'edit.js' );
+               $wgOut->addModules( 'mediawiki.legacy.edit' );
+
+               if ( $wgUser->getOption( 'uselivepreview', false ) ) {
+                       $wgOut->addModules( 'mediawiki.legacy.preview' );
+               }
 
                $permErrors = $this->getEditPermissionErrors();
                if ( $permErrors ) {
                        wfDebug( __METHOD__ . ": User can't edit\n" );
-                       $this->readOnlyPage( $this->getContent(), true, $permErrors, 'edit' );
+                       $content = $this->getContent( null );
+                       $content = $content === '' ? null : $content;
+                       $this->readOnlyPage( $content, true, $permErrors, 'edit' );
                        wfProfileOut( __METHOD__ );
                        return;
                } else {
@@ -415,7 +361,6 @@ class EditPage {
                                if ( $this->previewOnOpen() ) {
                                        $this->formtype = 'preview';
                                } else {
-                                       $this->extractMetaDataFromArticle () ;
                                        $this->formtype = 'initial';
                                }
                        }
@@ -433,7 +378,7 @@ class EditPage {
                $this->isCssJsSubpage      = $this->mTitle->isCssJsSubpage();
                $this->isCssSubpage        = $this->mTitle->isCssSubpage();
                $this->isJsSubpage         = $this->mTitle->isJsSubpage();
-               $this->isValidCssJsSubpage = $this->mTitle->isValidCssJsSubpage();
+               $this->isWrongCaseCssJsPage = $this->isWrongCaseCssJsPage();
 
                # Show applicable editing introductions
                if ( $this->formtype == 'initial' || $this->firsttime )
@@ -483,6 +428,8 @@ class EditPage {
                        }
                        if ( !$this->mTitle->getArticleId() )
                                wfRunHooks( 'EditFormPreloadText', array( &$this->textbox1, &$this->mTitle ) );
+                       else
+                               wfRunHooks( 'EditFormInitialText', array( $this ) );
                }
 
                $this->showEditForm();
@@ -561,7 +508,7 @@ class EditPage {
        /**
         * Does this EditPage class support section editing?
         * This is used by EditPage subclasses to indicate their ui cannot handle section edits
-        * 
+        *
         * @return bool
         */
        protected function isSectionEditSupported() {
@@ -573,8 +520,8 @@ class EditPage {
         * This is used by EditPage subclasses when simply customizing the action
         * variable in the constructor is not enough. This can be used when the
         * EditPage lives inside of a Special page rather than a custom page action.
-        * 
-        * @param Title $title The title for which is being edited (where we go to for &action= links)
+        *
+        * @param $title Title object for which is being edited (where we go to for &action= links)
         * @return string
         */
        protected function getActionURL( Title $title ) {
@@ -608,7 +555,7 @@ class EditPage {
                                        $this->textbox1 = $textbox1;
                                wfProfileOut( get_class($this)."::importContentFormData" );
                        }
-                       $this->mMetaData = rtrim( $request->getText( 'metadata' ) );
+
                        # Truncate for whole multibyte characters. +5 bytes for ellipsis
                        $this->summary = $wgLang->truncate( $request->getText( 'wpSummary' ), 250, '' );
 
@@ -678,7 +625,6 @@ class EditPage {
                        # Not a posted form? Start with nothing.
                        wfDebug( __METHOD__ . ": Not a posted form.\n" );
                        $this->textbox1  = '';
-                       $this->mMetaData = '';
                        $this->summary   = '';
                        $this->edittime  = '';
                        $this->starttime = wfTimestampNow();
@@ -709,7 +655,9 @@ class EditPage {
                $this->oldid = $request->getInt( 'oldid' );
 
                $this->live = $request->getCheck( 'live' );
-               $this->editintro = $request->getText( 'editintro' );
+               $this->editintro = $request->getText( 'editintro',
+                       // Custom edit intro for new sections
+                       $this->section === 'new' ? 'MediaWiki:addsection-editintro' : '' );
 
                wfProfileOut( __METHOD__ );
 
@@ -722,8 +670,8 @@ class EditPage {
         * posted form to be placed in $this->textbox1, if using customized input
         * this method should be overrided and return the page text that will be used
         * for saving, preview parsing and so on...
-        * 
-        * @praram WebRequest $request
+        *
+        * @param $request WebRequest
         */
        protected function importContentFormData( &$request ) {
                return; // Don't do anything, EditPage already extracted wpTextbox1
@@ -757,26 +705,42 @@ class EditPage {
 
                if ( $namespace == NS_MEDIAWIKI ) {
                        # Show a warning if editing an interface message
-                       $wgOut->wrapWikiMsg( "<div class='mw-editinginterface'>\n$1</div>", 'editinginterface' );
+                       $wgOut->wrapWikiMsg( "<div class='mw-editinginterface'>\n$1\n</div>", 'editinginterface' );
                }
 
-               # Show a warning message when someone creates/edits a user (talk) page but the user does not exists
+               # Show a warning message when someone creates/edits a user (talk) page but the user does not exist
+               # Show log extract when the user is currently blocked
                if ( $namespace == NS_USER || $namespace == NS_USER_TALK ) {
                        $parts = explode( '/', $this->mTitle->getText(), 2 );
                        $username = $parts[0];
-                       $id = User::idFromName( $username );
+                       $user = User::newFromName( $username, false /* allow IP users*/ );
                        $ip = User::isIP( $username );
-                       if ( $id == 0 && !$ip ) {
-                               $wgOut->wrapWikiMsg( '<div class="mw-userpage-userdoesnotexist error">$1</div>',
+                       if ( !$user->isLoggedIn() && !$ip ) { # User does not exist
+                               $wgOut->wrapWikiMsg( "<div class=\"mw-userpage-userdoesnotexist error\">\n$1\n</div>",
                                        array( 'userpage-userdoesnotexist', $username ) );
+                       } else if ( $user->isBlocked() ) { # Show log extract if the user is currently blocked
+                               LogEventsList::showLogExtract(
+                                       $wgOut,
+                                       'block',
+                                       $user->getUserPage()->getPrefixedText(),
+                                       '',
+                                       array(
+                                               'lim' => 1,
+                                               'showIfEmpty' => false,
+                                               'msgKey' => array(
+                                                       'blocked-notice-logextract',
+                                                       $user->getName() # Support GENDER in notice
+                                               )
+                                       )
+                               );
                        }
                }
                # Try to add a custom edit intro, or use the standard one if this is not possible.
                if ( !$this->showCustomIntro() && !$this->mTitle->exists() ) {
                        if ( $wgUser->isLoggedIn() ) {
-                               $wgOut->wrapWikiMsg( '<div class="mw-newarticletext">$1</div>', 'newarticletext' );
+                               $wgOut->wrapWikiMsg( "<div class=\"mw-newarticletext\">\n$1\n</div>", 'newarticletext' );
                        } else {
-                               $wgOut->wrapWikiMsg( '<div class="mw-newarticletextanon">$1</div>', 'newarticletextanon' );
+                               $wgOut->wrapWikiMsg( "<div class=\"mw-newarticletextanon\">\n$1\n</div>", 'newarticletextanon' );
                        }
                }
                # Give a notice if the user is editing a deleted/moved page...
@@ -816,14 +780,13 @@ class EditPage {
         * @return one of the constants describing the result
         */
        function internalAttemptSave( &$result, $bot = false ) {
-               global $wgFilterCallback, $wgUser, $wgOut, $wgParser;
+               global $wgFilterCallback, $wgUser, $wgParser;
                global $wgMaxArticleSize;
 
                wfProfileIn( __METHOD__  );
                wfProfileIn( __METHOD__ . '-checks' );
 
-               if ( !wfRunHooks( 'EditPage::attemptSave', array( $this ) ) )
-               {
+               if ( !wfRunHooks( 'EditPage::attemptSave', array( $this ) ) ) {
                        wfDebug( "Hook 'EditPage::attemptSave' aborted article saving\n" );
                        return self::AS_HOOK_ERROR;
                }
@@ -839,10 +802,6 @@ class EditPage {
                                }
                }
 
-               # Reintegrate metadata
-               if ( $this->mMetaData != '' ) $this->textbox1 .= "\n" . $this->mMetaData ;
-               $this->mMetaData = '' ;
-
                # Check for spam
                $match = self::matchSummarySpamRegex( $this->summary );
                if ( $match === false ) {
@@ -924,7 +883,7 @@ class EditPage {
                wfProfileOut( __METHOD__ . '-checks' );
 
                # If article is new, insert it.
-               $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
+               $aid = $this->mTitle->getArticleID( Title::GAID_FOR_UPDATE );
                if ( 0 == $aid ) {
                        // Late check for create permission, just in case *PARANOIA*
                        if ( !$this->mTitle->userCan( 'create' ) ) {
@@ -1073,7 +1032,7 @@ class EditPage {
                                return self::AS_TEXTBOX_EMPTY;
                        }
                        if ( $this->summary != '' ) {
-                               $sectionanchor = $wgParser->guessSectionNameFromWikiText( $this->summary );
+                               $sectionanchor = $wgParser->guessLegacySectionNameFromWikiText( $this->summary );
                                # This is a new section, so create a link to the new section
                                # in the revision summary.
                                $cleanSummary = $wgParser->stripSectionName( $this->summary );
@@ -1087,7 +1046,7 @@ class EditPage {
                        # 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 ) {
-                               $sectionanchor = $wgParser->guessSectionNameFromWikiText( $matches[2] );
+                               $sectionanchor = $wgParser->guessLegacySectionNameFromWikiText( $matches[2] );
                        }
                }
                wfProfileOut( __METHOD__ . '-sectionanchor' );
@@ -1136,7 +1095,7 @@ class EditPage {
                        ),
                        __METHOD__,
                        array( 'ORDER BY' => 'rev_timestamp ASC', 'LIMIT' => 50 ) );
-               while( $row = $res->fetchObject() ) {
+               foreach ( $res as $row ) {
                        if( $row->rev_user != $id ) {
                                return false;
                        }
@@ -1178,6 +1137,7 @@ class EditPage {
        /**
         * Initialise form fields in the object
         * Called on the first invocation, e.g. when a user clicks an edit link
+        * @returns bool -- if the requested section is valid
         */
        function initialiseForm() {
                global $wgUser;
@@ -1230,7 +1190,7 @@ class EditPage {
         *                      parameter; will be called during form output
         *                      near the top, for captchas and the like.
         */
-       function showEditForm( $formCallback=null ) {
+       function showEditForm( $formCallback = null ) {
                global $wgOut, $wgUser, $wgTitle;
 
                # If $wgTitle is null, that means we're in API mode.
@@ -1263,7 +1223,7 @@ class EditPage {
                if ( $this->showHeader() === false )
                        return;
 
-               $action = htmlspecialchars($this->getActionURL($wgTitle));
+               $action = htmlspecialchars( $this->getActionURL( $wgTitle ) );
 
                if ( $wgUser->getOption( 'showtoolbar' ) and !$this->isCssJsSubpage ) {
                        # prepare toolbar for edit buttons
@@ -1289,7 +1249,7 @@ class EditPage {
 
                if ( $this->wasDeletedSinceLastEdit() && 'save' != $this->formtype ) {
                        $wgOut->wrapWikiMsg(
-                               "<div class='error mw-deleted-while-editing'>\n$1</div>",
+                               "<div class='error mw-deleted-while-editing'>\n$1\n</div>",
                                'deletedwhileediting' );
                } elseif ( $this->wasDeletedSinceLastEdit() ) {
                        // Hide the toolbar and edit area, user can click preview to get it back
@@ -1332,9 +1292,11 @@ HTML
                # automatic one and pass that in the hidden field wpAutoSummary.
                if ( $this->missingSummary ||
                        ( $this->section == 'new' && $this->nosummary ) )
-                               $wgOut->addHTML( Xml::hidden( 'wpIgnoreBlankSummary', true ) );
+                               $wgOut->addHTML( Html::hidden( 'wpIgnoreBlankSummary', true ) );
                $autosumm = $this->autoSumm ? $this->autoSumm : md5( $this->summary );
-               $wgOut->addHTML( Xml::hidden( 'wpAutoSummary', $autosumm ) );
+               $wgOut->addHTML( Html::hidden( 'wpAutoSummary', $autosumm ) );
+
+               $wgOut->addHTML( Html::hidden( 'oldid', $this->mArticle->getOldID() ) );
 
                if ( $this->section == 'new' ) {
                        $this->showSummaryInput( true, $this->summary );
@@ -1342,13 +1304,13 @@ HTML
                }
 
                $wgOut->addHTML( $this->editFormTextBeforeContent );
-               
+
                if ( $this->isConflict ) {
                        // In an edit conflict bypass the overrideable content form method
                        // and fallback to the raw wpTextbox1 since editconflicts can't be
                        // resolved between page source edits and custom ui edits using the
                        // custom edit ui.
-                       $this->showTextbox1();
+                       $this->showTextbox1( null, $this->getContent() );
                } else {
                        $this->showContentForm();
                }
@@ -1359,10 +1321,6 @@ HTML
                if ( isset($this->editFormTextAfterWarn) && $this->editFormTextAfterWarn !== '' )
                        $wgOut->addHTML( $this->editFormTextAfterWarn );
 
-               global $wgUseMetadataEdit;
-               if ( $wgUseMetadataEdit )
-                       $this->showMetaData();
-
                $this->showStandardInputs();
 
                $this->showFormAfterText();
@@ -1383,7 +1341,7 @@ HTML
 
                if ( $this->isConflict )
                        $this->showConflict();
-               
+
                $wgOut->addHTML( $this->editFormTextBottom );
                $wgOut->addHTML( "</form>\n" );
                if ( !$wgUser->getOption( 'previewontop' ) ) {
@@ -1392,11 +1350,11 @@ HTML
 
                wfProfileOut( __METHOD__ );
        }
-       
+
        protected function showHeader() {
-               global $wgOut, $wgParser, $wgUser, $wgTitle, $wgMaxArticleSize, $wgLang;
+               global $wgOut, $wgUser, $wgTitle, $wgMaxArticleSize, $wgLang;
                if ( $this->isConflict ) {
-                       $wgOut->wrapWikiMsg( "<div class='mw-explainconflict'>\n$1</div>", 'explainconflict' );
+                       $wgOut->wrapWikiMsg( "<div class='mw-explainconflict'>\n$1\n</div>", 'explainconflict' );
                        $this->edittime = $this->mArticle->getTimestamp();
                } else {
                        if ( $this->section != '' && !$this->isSectionEditSupported() ) {
@@ -1421,15 +1379,15 @@ HTML
                        }
 
                        if ( $this->missingComment ) {
-                               $wgOut->wrapWikiMsg( '<div id="mw-missingcommenttext">$1</div>', 'missingcommenttext' );
+                               $wgOut->wrapWikiMsg( "<div id='mw-missingcommenttext'>\n$1\n</div>", 'missingcommenttext' );
                        }
 
                        if ( $this->missingSummary && $this->section != 'new' ) {
-                               $wgOut->wrapWikiMsg( '<div id="mw-missingsummary">$1</div>', 'missingsummary' );
+                               $wgOut->wrapWikiMsg( "<div id='mw-missingsummary'>\n$1\n</div>", 'missingsummary' );
                        }
 
                        if ( $this->missingSummary && $this->section == 'new' ) {
-                               $wgOut->wrapWikiMsg( '<div id="mw-missingcommentheader">$1</div>', 'missingcommentheader' );
+                               $wgOut->wrapWikiMsg( "<div id='mw-missingcommentheader'>\n$1\n</div>", 'missingcommentheader' );
                        }
 
                        if ( $this->hookError !== '' ) {
@@ -1444,9 +1402,9 @@ HTML
                        // Let sysop know that this will make private content public if saved
 
                                if ( !$this->mArticle->mRevision->userCan( Revision::DELETED_TEXT ) ) {
-                                       $wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1</div>\n", 'rev-deleted-text-permission' );
+                                       $wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n", 'rev-deleted-text-permission' );
                                } else if ( $this->mArticle->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
-                                       $wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1</div>\n", 'rev-deleted-text-view' );
+                                       $wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n", 'rev-deleted-text-view' );
                                }
 
                                if ( !$this->mArticle->mRevision->isCurrent() ) {
@@ -1458,19 +1416,23 @@ HTML
 
                if ( wfReadOnly() ) {
                        $wgOut->wrapWikiMsg( "<div id=\"mw-read-only-warning\">\n$1\n</div>", array( 'readonlywarning', wfReadOnlyReason() ) );
-               } elseif ( $wgUser->isAnon() && $this->formtype != 'preview' ) {
-                       $wgOut->wrapWikiMsg( '<div id="mw-anon-edit-warning">$1</div>', 'anoneditwarning' );
+               } elseif ( $wgUser->isAnon() ) {
+                       if ( $this->formtype != 'preview' ) {
+                               $wgOut->wrapWikiMsg( "<div id=\"mw-anon-edit-warning\">\n$1</div>", 'anoneditwarning' );
+                       } else {
+                               $wgOut->wrapWikiMsg( "<div id=\"mw-anon-preview-warning\">\n$1</div>", 'anonpreviewwarning' );
+                       }
                } else {
                        if ( $this->isCssJsSubpage ) {
                                # Check the skin exists
-                               if ( !$this->isValidCssJsSubpage ) {
-                                       $wgOut->addWikiMsg( 'userinvalidcssjstitle', $wgTitle->getSkinFromCssJsSubpage() );
+                               if ( $this->isWrongCaseCssJsPage ) {
+                                       $wgOut->wrapWikiMsg( "<div class='error' id='mw-userinvalidcssjstitle'>\n$1\n</div>", array( 'userinvalidcssjstitle', $wgTitle->getSkinFromCssJsSubpage() ) );
                                }
                                if ( $this->formtype !== 'preview' ) {
                                        if ( $this->isCssSubpage )
-                                               $wgOut->addWikiMsg( 'usercssyoucanpreview' );
+                                               $wgOut->wrapWikiMsg( "<div id='mw-usercssyoucanpreview'>\n$1\n</div>", array( 'usercssyoucanpreview' ) );
                                        if ( $this->isJsSubpage )
-                                               $wgOut->addWikiMsg( 'userjsyoucanpreview' );
+                                               $wgOut->wrapWikiMsg( "<div id='mw-userjsyoucanpreview'>\n$1\n</div>", array( 'userjsyoucanpreview' ) );
                                }
                        }
                }
@@ -1489,7 +1451,7 @@ HTML
                if ( $this->mTitle->isCascadeProtected() ) {
                        # Is this page under cascading protection from some source pages?
                        list($cascadeSources, /* $restrictions */) = $this->mTitle->getCascadeProtectionSources();
-                       $notice = "<div class='mw-cascadeprotectedwarning'>$1\n";
+                       $notice = "<div class='mw-cascadeprotectedwarning'>\n$1\n";
                        $cascadeSourcesCount = count( $cascadeSources );
                        if ( $cascadeSourcesCount > 0 ) {
                                # Explain, and list the titles responsible
@@ -1501,7 +1463,11 @@ HTML
                        $wgOut->wrapWikiMsg( $notice, array( 'cascadeprotectedwarning', $cascadeSourcesCount ) );
                }
                if ( !$this->mTitle->exists() && $this->mTitle->getRestrictions( 'create' ) ) {
-                       $wgOut->wrapWikiMsg( '<div class="mw-titleprotectedwarning">$1</div>', 'titleprotectedwarning' );
+                       LogEventsList::showLogExtract( $wgOut, 'protect', $this->mTitle->getPrefixedText(), '',
+                               array(  'lim' => 1,
+                                       'showIfEmpty' => false,
+                                       'msgKey' => array( 'titleprotectedwarning' ),
+                                       'wrap' => "<div class=\"mw-titleprotectedwarning\">\n$1</div>" ) );
                }
 
                if ( $this->kblength === false ) {
@@ -1509,13 +1475,16 @@ HTML
                }
 
                if ( $this->tooBig || $this->kblength > $wgMaxArticleSize ) {
-                       $wgOut->addHTML( "<div class='error' id='mw-edit-longpageerror'>\n" );
-                       $wgOut->addWikiMsg( 'longpageerror', $wgLang->formatNum( $this->kblength ), $wgLang->formatNum( $wgMaxArticleSize ) );
-                       $wgOut->addHTML( "</div>\n" );
-               } elseif ( $this->kblength > 29 ) {
-                       $wgOut->addHTML( "<div id='mw-edit-longpagewarning'>\n" );
-                       $wgOut->addWikiMsg( 'longpagewarning', $wgLang->formatNum( $this->kblength ) );
-                       $wgOut->addHTML( "</div>\n" );
+                       $wgOut->wrapWikiMsg( "<div class='error' id='mw-edit-longpageerror'>\n$1\n</div>",
+                               array( 'longpageerror', $wgLang->formatNum( $this->kblength ), $wgLang->formatNum( $wgMaxArticleSize ) ) );
+               } else {
+                       $msg = 'longpage-hint';
+                       $text = wfMsg( $msg );
+                       if( !wfEmptyMsg( $msg, $text ) && $text !== '-' ) {
+                               $wgOut->wrapWikiMsg( "<div id='mw-edit-longpage-hint'>\n$1\n</div>",
+                                       array( 'longpage-hint', $wgLang->formatSize( strlen( $this->textbox1 ) ), strlen( $this->textbox1 ) )
+                               );
+                       }
                }
        }
 
@@ -1525,23 +1494,25 @@ HTML
         * Note that you do not need to worry about the label's for=, it will be
         * inferred by the id given to the input. You can remove them both by
         * passing array( 'id' => false ) to $userInputAttrs.
-        * 
+        *
         * @param $summary The value of the summary input
         * @param $labelText The html to place inside the label
-        * @param $userInputAttrs An array of attrs to use on the input
-        * @param $userSpanAttrs An array of attrs to use on the span inside the label
-        * 
+        * @param $inputAttrs An array of attrs to use on the input
+        * @param $spanLabelAttrs An array of attrs to use on the span inside the label
+        *
         * @return array An array in the format array( $label, $input )
         */
        function getSummaryInput($summary = "", $labelText = null, $inputAttrs = null, $spanLabelAttrs = null) {
+               global $wgUser;
+               //Note: the maxlength is overriden in JS to 250 and to make it use UTF-8 bytes, not characters.
                $inputAttrs = ( is_array($inputAttrs) ? $inputAttrs : array() ) + array(
                        'id' => 'wpSummary',
                        'maxlength' => '200',
                        'tabindex' => '1',
                        'size' => 60,
                        'spellcheck' => 'true',
-               );
-               
+               ) + $wgUser->getSkin()->tooltipAndAccessKeyAttribs( 'summary' );
+
                $spanLabelAttrs = ( is_array($spanLabelAttrs) ? $spanLabelAttrs : array() ) + array(
                        'class' => $this->missingSummary ? 'mw-summarymissed' : 'mw-summary',
                        'id' => "wpSummaryLabel"
@@ -1559,11 +1530,11 @@ HTML
        }
 
        /**
-        * @param bool $isSubjectPreview true if this is the section subject/title
-        *                               up top, or false if this is the comment
-        *                               summary down below the textarea
-        * @param string $summary The text of the summary to display
-        * @return string
+        * @param $isSubjectPreview Boolean: true if this is the section subject/title
+        *                          up top, or false if this is the comment summary
+        *                          down below the textarea
+        * @param $summary String: The text of the summary to display
+        * @return String
         */
        protected function showSummaryInput( $isSubjectPreview, $summary = "" ) {
                global $wgOut, $wgContLang;
@@ -1583,41 +1554,43 @@ HTML
        }
 
        /**
-        * @param bool $isSubjectPreview true if this is the section subject/title
-        *                               up top, or false if this is the comment
-        *                               summary down below the textarea
-        * @param string $summary The text of the summary to display
-        * @return string
+        * @param $isSubjectPreview Boolean: true if this is the section subject/title
+        *                          up top, or false if this is the comment summary
+        *                          down below the textarea
+        * @param $summary String: the text of the summary to display
+        * @return String
         */
        protected function getSummaryPreview( $isSubjectPreview, $summary = "" ) {
                if ( !$summary || ( !$this->preview && !$this->diff ) )
                        return "";
-               
+
                global $wgParser, $wgUser;
                $sk = $wgUser->getSkin();
-               
+
                if ( $isSubjectPreview )
                        $summary = wfMsgForContent( 'newsectionsummary', $wgParser->stripSectionName( $summary ) );
 
-               $summary = wfMsgExt( 'subject-preview', 'parseinline' ) . $sk->commentBlock( $summary, $this->mTitle, !!$isSubjectPreview );
+               $message = $isSubjectPreview ? 'subject-preview' : 'summary-preview';
+
+               $summary = wfMsgExt( $message, 'parseinline' ) . $sk->commentBlock( $summary, $this->mTitle, $isSubjectPreview );
                return Xml::tags( 'div', array( 'class' => 'mw-summary-preview' ), $summary );
        }
 
        protected function showFormBeforeText() {
                global $wgOut;
                $section = htmlspecialchars( $this->section );
-               $wgOut->addHTML( <<<INPUTS
+               $wgOut->addHTML( <<<HTML
 <input type='hidden' value="{$section}" name="wpSection" />
 <input type='hidden' value="{$this->starttime}" name="wpStarttime" />
 <input type='hidden' value="{$this->edittime}" name="wpEdittime" />
 <input type='hidden' value="{$this->scrolltop}" name="wpScrolltop" id="wpScrolltop" />
 
-INPUTS
+HTML
                );
                if ( !$this->checkUnicodeCompliantBrowser() )
-                       $wgOut->addHTML(Xml::hidden( 'safemode', '1' ));
+                       $wgOut->addHTML(Html::hidden( 'safemode', '1' ));
        }
-       
+
        protected function showFormAfterText() {
                global $wgOut, $wgUser;
                /**
@@ -1632,7 +1605,7 @@ INPUTS
                 * include the constant suffix to prevent editing from
                 * broken text-mangling proxies.
                 */
-               $wgOut->addHTML( "\n" . Xml::hidden( "wpEditToken", $wgUser->editToken() ) . "\n" );
+               $wgOut->addHTML( "\n" . Html::hidden( "wpEditToken", $wgUser->editToken() ) . "\n" );
        }
 
        /**
@@ -1642,8 +1615,6 @@ INPUTS
         * be it a form, or simply wpTextbox1 with a modified content that will be
         * reverse modified when extracted from the post data.
         * Note that this is basically the inverse for importContentFormData
-        * 
-        * @praram WebRequest $request
         */
        protected function showContentForm() {
                $this->showTextbox1();
@@ -1653,9 +1624,9 @@ INPUTS
         * Method to output wpTextbox1
         * The $textoverride method can be used by subclasses overriding showContentForm
         * to pass back to this method.
-        * 
-        * @param array $customAttribs An array of html attributes to use in the textarea
-        * @param string $textoverride Optional text to override $this->textarea1 with
+        *
+        * @param $customAttribs An array of html attributes to use in the textarea
+        * @param $textoverride String: optional text to override $this->textarea1 with
         */
        protected function showTextbox1($customAttribs = null, $textoverride = null) {
                $classes = array(); // Textarea CSS
@@ -1680,12 +1651,6 @@ INPUTS
                        $attribs['class'] = implode( ' ', $classes );
                }
 
-               # Set focus to the edit box on load, except on preview or diff, where it would interfere with the display
-               if ( !$this->preview && !$this->diff ) {
-                       global $wgOut;
-                       $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus();' );
-               }
-               
                $this->showTextbox( isset($textoverride) ? $textoverride : $this->textbox1, 'wpTextbox1', $attribs );
        }
 
@@ -1708,25 +1673,13 @@ INPUTS
                $attribs = $customAttribs + array(
                        'accesskey' => ',',
                        'id'   => $name,
-                       'cols' => $wgUser->getIntOption( 'cols' ), 
+                       'cols' => $wgUser->getIntOption( 'cols' ),
                        'rows' => $wgUser->getIntOption( 'rows' ),
-                       'style' => '' // avoid php notices when appending for editwidth preference (appending allows customAttribs['style'] to still work
+                       'style' => '' // avoid php notices when appending preferences (appending allows customAttribs['style'] to still work
                );
 
-               if ( $wgUser->getOption( 'editwidth' ) )
-                       $attribs['style'] .= 'width: 100%';
-
                $wgOut->addHTML( Html::textarea( $name, $wikitext, $attribs ) );
        }
-       
-       protected function showMetaData() {
-               global $wgOut, $wgContLang, $wgUser;
-               $metadata = htmlspecialchars( $wgContLang->recodeForEdit( $this->mMetaData ) );
-               $ew = $wgUser->getOption( 'editwidth' ) ? ' style="width:100%"' : '';
-               $cols = $wgUser->getIntOption( 'cols' );
-               $metadata = wfMsgWikiHtml( 'metadata_help' ) . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
-               $wgOut->addHTML( $metadata );
-       }
 
        protected function displayPreviewArea( $previewOutput, $isOnTop = false ) {
                global $wgOut;
@@ -1756,7 +1709,7 @@ INPUTS
         * Append preview output to $wgOut.
         * Includes category rendering if this is a category page.
         *
-        * @param string $text The HTML to be output for the preview.
+        * @param $text String: the HTML to be output for the preview.
         */
        protected function showPreview( $text ) {
                global $wgOut;
@@ -1772,14 +1725,16 @@ INPUTS
                }
        }
 
+       /**
+        * Give a chance for site and per-namespace customizations of
+        * terms of service summary link that might exist separately
+        * from the copyright notice.
+        *
+        * This will display between the save button and the edit tools,
+        * so should remain short!
+        */
        protected function showTosSummary() {
                $msg = 'editpage-tos-summary';
-               // Give a chance for site and per-namespace customizations of
-               // terms of service summary link that might exist separately
-               // from the copyright notice.
-               //
-               // This will display between the save button and the edit tools,
-               // so should remain short!
                wfRunHooks( 'EditPageTosSummary', array( $this->mTitle, &$msg ) );
                $text = wfMsg( $msg );
                if( !wfEmptyMsg( $msg, $text ) && $text !== '-' ) {
@@ -1796,7 +1751,7 @@ INPUTS
                $wgOut->addWikiMsgArray( 'edittools', array(), array( 'content' ) );
                $wgOut->addHTML( '</div>' );
        }
-       
+
        protected function getCopywarn() {
                global $wgRightsText;
                if ( $wgRightsText ) {
@@ -1809,10 +1764,10 @@ INPUTS
                }
                // Allow for site and per-namespace customization of contribution/copyright notice.
                wfRunHooks( 'EditPageCopyrightWarning', array( $this->mTitle, &$copywarnMsg ) );
-               
+
                return "<div id=\"editpage-copywarn\">\n" . call_user_func_array("wfMsgNoTrans", $copywarnMsg) . "\n</div>";
        }
-       
+
        protected function showStandardInputs( &$tabindex = 2 ) {
                global $wgOut, $wgUser;
                $wgOut->addHTML( "<div class='editOptions'>\n" );
@@ -1837,7 +1792,11 @@ INPUTS
                $wgOut->addHTML( "      <span class='editHelp'>{$cancel}{$separator}{$edithelp}</span>\n" );
                $wgOut->addHTML( "</div><!-- editButtons -->\n</div><!-- editOptions -->\n" );
        }
-       
+
+       /*
+        * Show an edit conflict. textbox1 is already shown in showEditForm().
+        * If you want to use another entry point to this function, be careful.
+        */
        protected function showConflict() {
                global $wgOut;
                $this->textbox2 = $this->textbox1;
@@ -1891,7 +1850,7 @@ INPUTS
         * @return string
         */
        function getPreviewText() {
-               global $wgOut, $wgUser, $wgTitle, $wgParser, $wgLang, $wgContLang, $wgMessageCache;
+               global $wgOut, $wgUser, $wgParser, $wgMessageCache;
 
                wfProfileIn( __METHOD__ );
 
@@ -1919,49 +1878,64 @@ INPUTS
                }
 
                # don't parse user css/js, show message about preview
-               # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
+               # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here -- This note has been there since r3530. Sure the bug was fixed time ago?
+
+               if ( $this->isCssJsSubpage || $this->mTitle->isCssOrJsPage() ) {
+                       $level = 'user';
+                       if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
+                               $level = 'site';
+                       }
 
-               if ( $this->isCssJsSubpage ) {
+                       # Used messages to make sure grep find them:
+                       # Messages: usercsspreview, userjspreview, sitecsspreview, sitejspreview
                        if (preg_match( "/\\.css$/", $this->mTitle->getText() ) ) {
-                               $previewtext = wfMsg( 'usercsspreview' );
-                       } else if (preg_match( "/\\.js$/", $this->mTitle->getText() ) ) {
-                               $previewtext = wfMsg( 'userjspreview' );
+                               $previewtext = "<div id='mw-{$level}csspreview'>\n" . wfMsg( "{$level}csspreview" ) . "\n</div>";
+                               $class = "mw-code mw-css";
+                       } elseif (preg_match( "/\\.js$/", $this->mTitle->getText() ) ) {
+                               $previewtext = "<div id='mw-{$level}jspreview'>\n" . wfMsg( "{$level}jspreview" ) . "\n</div>";
+                               $class = "mw-code mw-js";
+                       } else {
+                               throw new MWException( 'A CSS/JS (sub)page but which is not css nor js!' );
                        }
+
                        $parserOptions->setTidy( true );
                        $parserOutput = $wgParser->parse( $previewtext, $this->mTitle, $parserOptions );
                        $previewHTML = $parserOutput->mText;
-               } elseif ( $rt = Title::newFromRedirectArray( $this->textbox1 ) ) {
-                       $previewHTML = $this->mArticle->viewRedirect( $rt, false );
+                       $previewHTML .= "<pre class=\"$class\" dir=\"ltr\">\n" . htmlspecialchars( $this->textbox1 ) . "\n</pre>\n";
                } else {
-                       $toparse = $this->textbox1;
-
-                       # If we're adding a comment, we need to show the
-                       # summary as the headline
-                       if ( $this->section == "new" && $this->summary != "" ) {
-                               $toparse="== {$this->summary} ==\n\n" . $toparse;
-                       }
+                       $rt = Title::newFromRedirectArray( $this->textbox1 );
+                       if ( $rt ) {
+                               $previewHTML = $this->mArticle->viewRedirect( $rt, false );
+                       } else {
+                               $toparse = $this->textbox1;
 
-                       if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData;
+                               # If we're adding a comment, we need to show the
+                               # summary as the headline
+                               if ( $this->section == "new" && $this->summary != "" ) {
+                                       $toparse = "== {$this->summary} ==\n\n" . $toparse;
+                               }
 
-                       // Parse mediawiki messages with correct target language
-                       if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
-                               list( /* $unused */, $lang ) = $wgMessageCache->figureMessage( $this->mTitle->getText() );
-                               $obj = wfGetLangObj( $lang );
-                               $parserOptions->setTargetLanguage( $obj );
-                       }
+                               wfRunHooks( 'EditPageGetPreviewText', array( $this, &$toparse ) );
 
+                               // Parse mediawiki messages with correct target language
+                               if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
+                                       list( /* $unused */, $lang ) = $wgMessageCache->figureMessage( $this->mTitle->getText() );
+                                       $obj = wfGetLangObj( $lang );
+                                       $parserOptions->setTargetLanguage( $obj );
+                               }
 
-                       $parserOptions->setTidy( true );
-                       $parserOptions->enableLimitReport();
-                       $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ),
+                               $parserOptions->setTidy( true );
+                               $parserOptions->enableLimitReport();
+                               $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ),
                                        $this->mTitle, $parserOptions );
 
-                       $previewHTML = $parserOutput->getText();
-                       $this->mParserOutput = $parserOutput;
-                       $wgOut->addParserOutputNoText( $parserOutput );
+                               $previewHTML = $parserOutput->getText();
+                               $this->mParserOutput = $parserOutput;
+                               $wgOut->addParserOutputNoText( $parserOutput );
 
-                       if ( count( $parserOutput->getWarnings() ) ) {
-                               $note .= "\n\n" . implode( "\n\n", $parserOutput->getWarnings() );
+                               if ( count( $parserOutput->getWarnings() ) ) {
+                                       $note .= "\n\n" . implode( "\n\n", $parserOutput->getWarnings() );
+                               }
                        }
                }
 
@@ -2047,22 +2021,26 @@ INPUTS
         * they have attempted to edit a nonexistent section.
         */
        function noSuchSectionPage() {
-               global $wgOut, $wgTitle;
+               global $wgOut;
 
                $wgOut->setPageTitle( wfMsg( 'nosuchsectiontitle' ) );
                $wgOut->setRobotPolicy( 'noindex,nofollow' );
                $wgOut->setArticleRelated( false );
 
-               $wgOut->addWikiMsg( 'nosuchsectiontext', $this->section );
-               $wgOut->returnToMain( false, $wgTitle );
+               $res = wfMsgExt( 'nosuchsectiontext', 'parse', $this->section );
+               wfRunHooks( 'EditPageNoSuchSection', array( &$this, &$res ) );
+               $wgOut->addHTML( $res );
+
+               $wgOut->returnToMain( false, $this->mTitle );
        }
 
        /**
         * Produce the stock "your edit contains spam" page
         *
         * @param $match Text which triggered one or more filters
+        * @deprecated Use method spamPageWithContent() instead
         */
-       function spamPage( $match = false ) {
+       static function spamPage( $match = false ) {
                global $wgOut, $wgTitle;
 
                $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
@@ -2071,13 +2049,46 @@ INPUTS
 
                $wgOut->addHTML( '<div id="spamprotected">' );
                $wgOut->addWikiMsg( 'spamprotectiontext' );
-               if ( $match )
+               if ( $match ) {
                        $wgOut->addWikiMsg( 'spamprotectionmatch', wfEscapeWikiText( $match ) );
+               }
                $wgOut->addHTML( '</div>' );
 
                $wgOut->returnToMain( false, $wgTitle );
        }
 
+       /**
+        * Show "your edit contains spam" page with your diff and text
+        *
+        * @param $match Text which triggered one or more filters
+        */
+       public function spamPageWithContent( $match = false ) {
+               global $wgOut, $wgTitle;
+               $this->textbox2 = $this->textbox1;
+
+               $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
+               $wgOut->setRobotPolicy( 'noindex,nofollow' );
+               $wgOut->setArticleRelated( false );
+
+               $wgOut->addHTML( '<div id="spamprotected">' );
+               $wgOut->addWikiMsg( 'spamprotectiontext' );
+               if ( $match ) {
+                       $wgOut->addWikiMsg( 'spamprotectionmatch', wfEscapeWikiText( $match ) );
+               }
+               $wgOut->addHTML( '</div>' );
+
+               $wgOut->wrapWikiMsg( '<h2>$1</h2>', "yourdiff" );
+               $de = new DifferenceEngine( $this->mTitle );
+               $de->setText( $this->getContent(), $this->textbox2 );
+               $de->showDiff( wfMsg( "storedversion" ), wfMsg( "yourtext" ) );
+
+               $wgOut->wrapWikiMsg( '<h2>$1</h2>', "yourtext" );
+               $this->showTextbox2();
+
+               $wgOut->addReturnTo( $wgTitle, array( 'action' => 'edit' ) );
+       }
+
+
        /**
         * @private
         * @todo document
@@ -2146,8 +2157,8 @@ INPUTS
 
        /**
         * Format an anchor fragment as it would appear for a given section name
-        * @param string $text
-        * @return string
+        * @param $text String
+        * @return String
         * @private
         */
        function sectionAnchor( $text ) {
@@ -2163,7 +2174,10 @@ INPUTS
         * @return string
         */
        static function getEditToolbar() {
-               global $wgStylePath, $wgContLang, $wgLang;
+               global $wgStylePath, $wgContLang, $wgLang, $wgOut;
+               global $wgUseTeX, $wgEnableUploads, $wgForeignFileRepos;
+
+               $imagesAvailable = $wgEnableUploads || count( $wgForeignFileRepos );
 
                /**
 
@@ -2223,7 +2237,7 @@ INPUTS
                                'tip'    => wfMsg( 'headline_tip' ),
                                'key'    => 'H'
                        ),
-                       array(
+                       $imagesAvailable ? array(
                                'image'  => $wgLang->getImageFile( 'button-image' ),
                                'id'     => 'mw-editbutton-image',
                                'open'   => '[[' . $wgContLang->getNsText( NS_FILE ) . ':',
@@ -2231,8 +2245,8 @@ INPUTS
                                'sample' => wfMsg( 'image_sample' ),
                                'tip'    => wfMsg( 'image_tip' ),
                                'key'    => 'D'
-                       ),
-                       array(
+                       ) : false,
+                       $imagesAvailable ? array(
                                'image'  => $wgLang->getImageFile( 'button-media' ),
                                'id'     => 'mw-editbutton-media',
                                'open'   => '[[' . $wgContLang->getNsText( NS_MEDIA ) . ':',
@@ -2240,8 +2254,8 @@ INPUTS
                                'sample' => wfMsg( 'media_sample' ),
                                'tip'    => wfMsg( 'media_tip' ),
                                'key'    => 'M'
-                       ),
-                       array(
+                       ) : false,
+                       $wgUseTeX ?     array(
                                'image'  => $wgLang->getImageFile( 'button-math' ),
                                'id'     => 'mw-editbutton-math',
                                'open'   => "<math>",
@@ -2249,7 +2263,7 @@ INPUTS
                                'sample' => wfMsg( 'math_sample' ),
                                'tip'    => wfMsg( 'math_tip' ),
                                'key'    => 'C'
-                       ),
+                       ) : false,
                        array(
                                'image'  => $wgLang->getImageFile( 'button-nowiki' ),
                                'id'     => 'mw-editbutton-nowiki',
@@ -2282,6 +2296,10 @@ INPUTS
 
                $script = '';
                foreach ( $toolarray as $tool ) {
+                       if ( !$tool ) {
+                               continue;
+                       }
+
                        $params = array(
                                $image = $wgStylePath . '/common/images/' . $tool['image'],
                                // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
@@ -2299,8 +2317,11 @@ INPUTS
                                array_map( array( 'Xml', 'encodeJsVar' ), $params ) );
                        $script .= "addButton($paramList);\n";
                }
-               $toolbar .= Html::inlineScript( "\n$script\n" );
-
+               
+               $wgOut->addScript( Html::inlineScript(
+                       "if ( window.mediaWiki ) { $script }"
+               ) );
+               
                $toolbar .= "\n</div>";
 
                wfRunHooks( 'EditPageBeforeEditToolbar', array( &$toolbar ) );
@@ -2334,7 +2355,9 @@ INPUTS
                        );
                        $checkboxes['minor'] =
                                Xml::check( 'wpMinoredit', $checked['minor'], $attribs ) .
-                               "&nbsp;<label for='wpMinoredit'" . $skin->tooltip( 'minoredit', 'withaccess' ) . ">{$minorLabel}</label>";
+                               "&#160;<label for='wpMinoredit' id='mw-editpage-minoredit'" .
+                               Xml::expandAttributes( array( 'title' => $skin->titleAttrib( 'minoredit', 'withaccess' ) ) ) .
+                               ">{$minorLabel}</label>";
                }
 
                $watchLabel = wfMsgExt( 'watchthis', array( 'parseinline' ) );
@@ -2347,7 +2370,9 @@ INPUTS
                        );
                        $checkboxes['watch'] =
                                Xml::check( 'wpWatchthis', $checked['watch'], $attribs ) .
-                               "&nbsp;<label for='wpWatchthis'" . $skin->tooltip( 'watch', 'withaccess' ) . ">{$watchLabel}</label>";
+                               "&#160;<label for='wpWatchthis' id='mw-editpage-watch'" .
+                               Xml::expandAttributes( array( 'title' => $skin->titleAttrib( 'watch', 'withaccess' ) ) ) .
+                               ">{$watchLabel}</label>";
                }
                wfRunHooks( 'EditPageBeforeEditChecks', array( &$this, &$checkboxes, &$tabindex ) );
                return $checkboxes;
@@ -2361,7 +2386,7 @@ INPUTS
         *
         * @return array
         */
-       public function getEditButtons(&$tabindex) {
+       public function getEditButtons( &$tabindex ) {
                $buttons = array();
 
                $temp = array(
@@ -2436,11 +2461,12 @@ INPUTS
 
        public function getCancelLink() {
                global $wgUser, $wgTitle;
+
                $cancelParams = array();
-               if ( !$this->isConflict && isset( $this->mArticle ) &&
-                       isset( $this->mArticle->mRevision ) &&
-                       !$this->mArticle->mRevision->isCurrent() )
-                               $cancelParams['oldid'] = $this->mArticle->mRevision->getId();
+               if ( !$this->isConflict && $this->mArticle->getOldID() > 0 ) {
+                       $cancelParams['oldid'] = $this->mArticle->getOldID();
+               }
+
                return $wgUser->getSkin()->link(
                        $wgTitle,
                        wfMsgExt( 'cancel', array( 'parseinline' ) ),
@@ -2461,6 +2487,9 @@ INPUTS
                $oldtext = $this->mArticle->fetchContent();
                $newtext = $this->mArticle->replaceSection(
                        $this->section, $this->textbox1, $this->summary, $this->edittime );
+
+               wfRunHooks( 'EditPageGetDiffText', array( $this, &$newtext ) );
+
                $newtext = $this->mArticle->preSaveTransform( $newtext );
                $oldtitle = wfMsgExt( 'currentrev', array( 'parseinline' ) );
                $newtitle = wfMsgExt( 'yourtext', array( 'parseinline' ) );
@@ -2481,9 +2510,9 @@ INPUTS
         * Filter an input field through a Unicode de-armoring process if it
         * came from an old browser with known broken Unicode editing issues.
         *
-        * @param WebRequest $request
-        * @param string $field
-        * @return string
+        * @param $request WebRequest
+        * @param $field String
+        * @return String
         * @private
         */
        function safeUnicodeInput( $request, $field ) {
@@ -2504,8 +2533,8 @@ INPUTS
         * Filter an output field through a Unicode armoring process if it is
         * going to an old browser with known broken Unicode editing issues.
         *
-        * @param string $text
-        * @return string
+        * @param $text String
+        * @return String
         * @private
         */
        function safeUnicodeOutput( $text ) {
@@ -2525,8 +2554,8 @@ INPUTS
         * Preexisting such character references will have a 0 added to them
         * to ensure that round-trips do not alter the original data.
         *
-        * @param string $invalue
-        * @return string
+        * @param $invalue String
+        * @return String
         * @private
         */
        function makesafe( $invalue ) {
@@ -2567,8 +2596,8 @@ INPUTS
         * back to UTF-8. Used to protect data from corruption by broken web browsers
         * as listed in $wgBrowserBlackList.
         *
-        * @param string $invalue
-        * @return string
+        * @param $invalue String
+        * @return String
         * @private
         */
        function unmakesafe( $invalue ) {
@@ -2639,7 +2668,7 @@ INPUTS
                                return false;
 
                        case self::AS_SPAM_ERROR:
-                               $this->spamPage( $resultDetails['spam'] );
+                               $this->spamPageWithContent( $resultDetails['spam'] );
                                return false;
 
                        case self::AS_BLOCKED_PAGE_FOR_USER:
@@ -2678,7 +2707,7 @@ INPUTS
        }
 
        function getBaseRevision() {
-               if ( $this->mBaseRevision == false ) {
+               if ( !$this->mBaseRevision ) {
                        $db = wfGetDB( DB_MASTER );
                        $baseRevision = Revision::loadFromTimestamp(
                                $db, $this->mTitle, $this->edittime );