refactor: minor appservice code cleanup

src/database/key_value/appservice.rs

@@ -10,10 +10,6 @@ impl service::appservice::Data for KeyValueDatabase {
             id.as_bytes(),
             serde_yaml::to_string(&yaml).unwrap().as_bytes(),
         )?;
-        self.cached_registrations
-            .write()
-            .unwrap()
-            .insert(id.to_owned(), yaml.to_owned());
 
         Ok(id.to_owned())
     }
@@ -26,33 +22,18 @@ impl service::appservice::Data for KeyValueDatabase {
     fn unregister_appservice(&self, service_name: &str) -> Result<()> {
         self.id_appserviceregistrations
             .remove(service_name.as_bytes())?;
-        self.cached_registrations
-            .write()
-            .unwrap()
-            .remove(service_name);
         Ok(())
     }
 
     fn get_registration(&self, id: &str) -> Result<Option<Registration>> {
-        self.cached_registrations
-            .read()
-            .unwrap()
-            .get(id)
-            .map_or_else(
-                || {
-                    self.id_appserviceregistrations
-                        .get(id.as_bytes())?
-                        .map(|bytes| {
-                            serde_yaml::from_slice(&bytes).map_err(|_| {
-                                Error::bad_database(
-                                    "Invalid registration bytes in id_appserviceregistrations.",
-                                )
-                            })
-                        })
-                        .transpose()
-                },
-                |r| Ok(Some(r.clone())),
-            )
+        self.id_appserviceregistrations
+            .get(id.as_bytes())?
+            .map(|bytes| {
+                serde_yaml::from_slice(&bytes).map_err(|_| {
+                    Error::bad_database("Invalid registration bytes in id_appserviceregistrations.")
+                })
+            })
+            .transpose()
     }
 
     fn iter_ids<'a>(&'a self) -> Result<Box<dyn Iterator<Item = Result<String>> + 'a>> {

src/database/mod.rs

@@ -10,7 +10,6 @@ use directories::ProjectDirs;
 use lru_cache::LruCache;
 
 use ruma::{
-    api::appservice::Registration,
     events::{
         push_rules::{PushRulesEvent, PushRulesEventContent},
         room::message::RoomMessageEventContent,
@@ -164,7 +163,6 @@ pub struct KeyValueDatabase {
     //pub pusher: pusher::PushData,
     pub(super) senderkey_pusher: Arc<dyn KvTree>,
 
-    pub(super) cached_registrations: Arc<RwLock<HashMap<String, Registration>>>,
     pub(super) pdu_cache: Mutex<LruCache<OwnedEventId, Arc<PduEvent>>>,
     pub(super) shorteventid_cache: Mutex<LruCache<u64, Arc<EventId>>>,
     pub(super) auth_chain_cache: Mutex<LruCache<Vec<u64>, Arc<HashSet<u64>>>>,
@@ -374,7 +372,6 @@ impl KeyValueDatabase {
             global: builder.open_tree("global")?,
             server_signingkeys: builder.open_tree("server_signingkeys")?,
 
-            cached_registrations: Arc::new(RwLock::new(HashMap::new())),
             pdu_cache: Mutex::new(LruCache::new(
                 config
                     .pdu_cache_capacity
@@ -969,22 +966,6 @@ impl KeyValueDatabase {
             );
         }
 
-        // Inserting registrations into cache
-        for appservice in services().appservice.all()? {
-            services()
-                .appservice
-                .registration_info
-                .write()
-                .await
-                .insert(
-                    appservice.0,
-                    appservice
-                        .1
-                        .try_into()
-                        .expect("Should be validated on registration"),
-                );
-        }
-
         // This data is probably outdated
         db.presenceid_presence.clear()?;