1 files changed, 12 insertions, 7 deletions
diff --git a/aconf/model/aaa.lua b/aconf/model/aaa.lua
index 3f62ef0..982e5b3 100644
--- a/aconf/model/aaa.lua
+++ b/aconf/model/aaa.lua
@@ -1,5 +1,5 @@
 --[[
-Copyright (c) 2012-2015 Kaarle Ritvanen
+Copyright (c) 2012-2016 Kaarle Ritvanen
 See LICENSE file for license details
 --]]
 
@@ -56,14 +56,19 @@ function User:check_password(password)
 end
 
 function User:check_permission(permission)
-   assert(self:fetch('/aaa/permissions')[permission])
-
-   for _, role in node.pairs(self.roles, true) do
-      for _, p in node.pairs(role.permissions, true) do
-	 if p == permission then return true end
+   local mt = getmetatable(self)
+   if not mt.permissions then
+      mt.permissions = {}
+      for _, p in pairs(self:fetch('../../permissions')) do
+	 mt.permissions[p] = false
+      end
+      for _, role in node.pairs(self.roles, true) do
+	 for _, p in node.pairs(role.permissions, true) do
+	    mt.permissions[p] = true
+	 end
       end
    end
-   return false
+   return mt.permissions[permission]
 end