--- CalendarPlugin.pm	2008-04-21 11:22:11.000000000 +0100
+++ /var/www/twiki42/lib/TWiki/Plugins/CalendarPlugin.pm	2008-04-18 16:52:50.000000000 +0100
@@ -69,6 +69,8 @@
 $libsError  = 0;
 $defaultsInitialized = 0;
 %defaults   = ();
+$permissionFlag=0;
+#$user ='';
 
 # =========================
 sub initPlugin
@@ -158,12 +160,19 @@
 {
     my( $theWeb, $theTopic ) = @_;
     my $text = '';
-    if( $TWiki::Plugins::VERSION >= 1.010 ) {
-        $text = &TWiki::Func::readTopicText( $theWeb, $theTopic, '', 1 );
-    } else {
-        $text = &TWiki::Func::readTopic( $theWeb, $theTopic );
+   
+    if ( &TWiki::Func::checkAccessPermission( 'VIEW', $user, undef, $theTopic, $theWeb) ){
+        if( $TWiki::Plugins::VERSION >= 1.010 ) {
+            $text = &TWiki::Func::readTopicText( $theWeb, $theTopic, '', 1 );
+        } else {
+            $text = &TWiki::Func::readTopic( $theWeb, $theTopic );
+        }
+        # return raw topic text, including meta data
+        }
+    else{
+        $permissionFlag=1;
+        return false;
     }
-    # return raw topic text, including meta data
     return $text;
 }
 
@@ -900,7 +909,11 @@
 		$numDays--;
 	    }
 	}
-
+	
+	#Add text to say if there's been a permissions violation
+	if ($permissionFlag!=0){
+	    $result.= "\n\n   * %RED% Warning, some topics could not be included into the Calendar %ENDCOLOR%";
+        }
 	# Advance to next month in preparation for possibly
 	# constructing another calendar