added sessions and flash storage

session.go

@@ -0,0 +1,52 @@
+package tuu
+
+import (
+	"net/http"
+
+	"github.com/gorilla/sessions"
+)
+
+// Session wraps the "github.com/gorilla/sessions" API
+// in something a little cleaner and a bit more useable.
+type Session struct {
+	Session *sessions.Session
+	req     *http.Request
+	res     http.ResponseWriter
+}
+
+// Save the current session.
+func (s *Session) Save() error {
+	return s.Session.Save(s.req, s.res)
+}
+
+// Get a value from the current session.
+func (s *Session) Get(name interface{}) interface{} {
+	return s.Session.Values[name]
+}
+
+// GetOnce gets a value from the current session and then deletes it.
+func (s *Session) GetOnce(name interface{}) interface{} {
+	if x, ok := s.Session.Values[name]; ok {
+		s.Delete(name)
+		return x
+	}
+	return nil
+}
+
+// Set a value onto the current session. If a value with that name
+// already exists it will be overridden with the new value.
+func (s *Session) Set(name, value interface{}) {
+	s.Session.Values[name] = value
+}
+
+// Delete a value from the current session.
+func (s *Session) Delete(name interface{}) {
+	delete(s.Session.Values, name)
+}
+
+// Clear the current session
+func (s *Session) Clear() {
+	for k := range s.Session.Values {
+		s.Delete(k)
+	}
+}