Simplify tables

server/auth.go

@@ -0,0 +1,28 @@
+package server
+
+// auth is a generic interface to implement password-based authentication and authorization
+type auth interface {
+	Authenticate(user, pass string) (*user, error)
+	Authorize(user *user, topic string, perm int) error
+}
+
+type user struct {
+	Name string
+	Role string
+}
+
+const (
+	permRead  = 1
+	permWrite = 2
+)
+
+const (
+	roleAdmin = "admin"
+	roleUser  = "user"
+	roleNone  = "none"
+)
+
+var everyone = &user{
+	Name: "",
+	Role: roleNone,
+}