AP Route (#4997)

* Negative Cache-Control

* refactor user

* a

Author: mei23

src/models/user.ts

@@ -236,7 +236,7 @@ export interface IRemoteUser extends IUserBase {
 export type IUser = ILocalUser | IRemoteUser;
 
 export const isLocalUser = (user: any): user is ILocalUser =>
-	user.host === null;
+	user.host == null;
 
 export const isRemoteUser = (user: any): user is IRemoteUser =>
 	!isLocalUser(user);

src/remote/activitypub/renderer/follow-user.ts

@@ -12,5 +12,7 @@ export default async function renderFollowUser(id: mongo.ObjectID): Promise<any>
 		_id: id
 	});
 
+	if (user == null) return null;	// TODO
+
 	return isLocalUser(user) ? `${config.url}/users/${user._id}` : user.uri;
 }