feat: added basic ACL functionality

src/service/acl/data.rs

@@ -0,0 +1,25 @@
+use serde::{Serialize, Deserialize};
+use url::Host;
+
+
+pub trait Data: Send + Sync {
+    /// check if given host exists in Acls, if so return it
+    fn check_acl(&self,host: &Host<String> ) -> crate::Result<Option<AclMode>>;
+
+    /// add a given Acl entry to the database
+    fn add_acl(&self, acl: AclDatabaseEntry) -> crate::Result<()>;
+    /// remove a given Acl entry from the database
+    fn remove_acl(&self,host: Host<String>) -> crate::Result<()>;
+}
+
+#[derive(Serialize,Deserialize, Debug, Clone, Copy)]
+pub enum AclMode{
+    Block,
+    Allow
+}
+#[derive(Serialize,Deserialize, Debug, Clone)]
+
+pub struct AclDatabaseEntry { 
+    pub(crate) mode: AclMode,
+    pub(crate) hostname: Host
+}