access control and command handling with regex

src/store/data.rs

@@ -101,6 +101,14 @@ impl GroupConfig {
         self.mark_dirty();
     }
 
+    pub(crate) fn get_admins(&self) -> impl Iterator<Item=&String> {
+        self.admin_users.iter()
+    }
+
+    pub(crate) fn get_members(&self) -> impl Iterator<Item=&String> {
+        self.member_users.iter()
+    }
+
     pub(crate) fn set_last_notif(&mut self, ts: u64) {
         self.last_notif_ts = self.last_notif_ts.max(ts);
         self.mark_dirty();
@@ -127,10 +135,14 @@ impl GroupConfig {
             || self.is_users_server_banned(acct)
     }
 
+    pub(crate) fn is_server_banned(&self, server: &str) -> bool {
+        self.banned_servers.contains(server)
+    }
+
     /// Check if the user's server is banned
     fn is_users_server_banned(&self, acct: &str) -> bool {
         let server = acct_to_server(acct);
-        self.banned_servers.contains(server)
+        self.is_server_banned(server)
     }
 
     pub(crate) fn can_write(&self, acct: &str) -> bool {

src/store/mod.rs

@@ -170,9 +170,9 @@ impl ConfigStore {
 
 #[derive(Debug, Error)]
 pub enum GroupError {
-    #[error("Operation refused because the user is admin")]
+    #[error("User is admin")]
     UserIsAdmin,
-    #[error("Operation refused because the user is banned")]
+    #[error("User is banned")]
     UserIsBanned,
     #[error("Server could not be banned because there are admin users on it")]
     AdminsOnServer,