Add address() method to Actor type

Returns ActorAddress object.

src/activitypub/actor.rs

@@ -162,6 +162,22 @@ fn parse_extra_field(
 }
 
 impl Actor {
+    pub fn address(
+        &self,
+        this_instance_host: &str,
+    ) -> Result<ActorAddress, url::ParseError> {
+        let actor_host = url::Url::parse(&self.id)?
+            .host_str()
+            .ok_or(url::ParseError::EmptyHost)?
+            .to_owned();
+        let is_local = actor_host == this_instance_host;
+        let actor_address = ActorAddress {
+            username: self.preferred_username.clone(),
+            instance: actor_host,
+            is_local,
+        };
+        Ok(actor_address)
+    }
 
     pub fn parse_attachments(&self) -> (Vec<IdentityProof>, Vec<ExtraField>) {
         let mut identity_proofs = vec![];
@@ -365,8 +381,21 @@ mod tests {
     };
     use super::*;
 
+    const INSTANCE_HOST: &str = "example.com";
     const INSTANCE_URL: &str = "https://example.com";
 
+    #[test]
+    fn test_get_actor_address() {
+        let actor = Actor {
+            id: "https://test.org/users/1".to_string(),
+            preferred_username: "test".to_string(),
+            ..Default::default()
+        };
+        let actor_address = actor.address(INSTANCE_HOST).unwrap();
+        assert_eq!(actor_address.is_local, false);
+        assert_eq!(actor_address.acct(), "test@test.org");
+    }
+
     #[test]
     fn test_local_actor() {
         let private_key = generate_weak_private_key().unwrap();

src/activitypub/fetcher/helpers.rs

@@ -56,35 +56,22 @@ impl From<ImportError> for HttpError {
     }
 }
 
-fn get_actor_host(actor_id: &str) -> Result<String, url::ParseError> {
-    let actor_host = url::Url::parse(actor_id)?
-        .host_str()
-        .ok_or(url::ParseError::EmptyHost)?
-        .to_owned();
-    Ok(actor_host)
-}
-
 async fn prepare_remote_profile_data(
     instance: &Instance,
     media_dir: &Path,
     actor: Actor,
 ) -> Result<ProfileCreateData, ImportError> {
-    let actor_host = get_actor_host(&actor.id)
+    let actor_address = actor.address(&instance.host())
         .map_err(|_| ValidationError("invalid actor ID"))?;
-    if actor_host == instance.host() {
+    if actor_address.is_local {
         return Err(ImportError::LocalObject);
     };
-    let actor_address = format!(
-        "{}@{}",
-        actor.preferred_username,
-        actor_host,
-    );
     let (avatar, banner) = fetch_avatar_and_banner(&actor, media_dir).await?;
     let (identity_proofs, extra_fields) = actor.parse_attachments();
     let profile_data = ProfileCreateData {
         username: actor.preferred_username.clone(),
         display_name: actor.name.clone(),
-        acct: actor_address,
+        acct: actor_address.acct(),
         bio: actor.summary.clone(),
         avatar,
         banner,