Add a message to an AccessDeniedException

htdocs/lang/en.utf8/error.php

@@ -88,6 +88,7 @@ $string['accessdeniedexception'] =  'You do not have access to view this page';
 $string['viewnotfoundexceptiontitle'] = 'View not found';
 $string['viewnotfoundexceptionmessage'] = 'You tried to access a view that didn\'t exist!';
 $string['viewnotfound'] = 'View with id %s not found';
+$string['youcannotviewthisusersprofile'] = 'You cannot view this user\'s profile';
 
 $string['artefactnotfoundmaybedeleted'] = "Artefact with id %s not found (maybe it has been deleted already?)";
 $string['artefactnotfound'] = 'Artefact with id %s not found';

htdocs/user/view.php

@@ -62,7 +62,7 @@ $userobj->find_by_id($userid);
 $view = $userobj->get_profile_view();
 # access will either be logged in (always) or public as well
 if (!$view || !can_view_view($view->get('id'))) {
-    throw new AccessDeniedException();
+    throw new AccessDeniedException(get_string('youcannotviewthisusersprofile'));
 }
 
 $name = display_name($user);