basic antibot feature through cookie

lua/cookie.lua

@@ -0,0 +1,22 @@
+local M         = {}
+local session   = require "resty.session"
+
+function M.is_set ()
+        local s = session.open()
+        if s and s.data.uri then
+                return true
+        end
+        return false
+end
+
+function M.set ()
+	local s = session.start()
+	s.data.uri = ngx.var.request_uri
+	s:save()
+end
+
+function M.get_uri ()
+	return session.open().data.uri
+end
+
+return M