From c8b20d0f5f33fb8b9898d216c3b4c9280abf31da Mon Sep 17 00:00:00 2001
From: fiaxh <git@lightrise.org>
Date: Sun, 26 May 2024 18:24:54 +0200
Subject: Store requested disco results with computed hash, use for offline
 determining of private MUCs

---
 libdino/src/service/entity_info.vala | 35 ++++++++++++++++++++++++++++++-----
 libdino/src/service/muc_manager.vala | 11 ++---------
 2 files changed, 32 insertions(+), 14 deletions(-)

(limited to 'libdino/src/service')

diff --git a/libdino/src/service/entity_info.vala b/libdino/src/service/entity_info.vala
index d1217e81..83e27d4b 100644
--- a/libdino/src/service/entity_info.vala
+++ b/libdino/src/service/entity_info.vala
@@ -90,6 +90,20 @@ public class EntityInfo : StreamInteractionModule, Object {
         return info_result.features.contains(feature);
     }
 
+    public bool has_feature_offline(Account account, Jid jid, string feature) {
+        int ret = has_feature_cached_int(account, jid, feature);
+        if (ret == -1) {
+            return db.entity.select()
+                    .with(db.entity.account_id, "=", account.id)
+                    .with(db.entity.jid_id, "=", db.get_jid_id(jid))
+                    .with(db.entity.resource, "=", jid.resourcepart ?? "")
+                    .join_with(db.entity_feature, db.entity.caps_hash, db.entity_feature.entity)
+                    .with(db.entity_feature.feature, "=", feature)
+                    .count() > 0;
+        }
+        return ret == 1;
+    }
+
     public bool has_feature_cached(Account account, Jid jid, string feature) {
         return has_feature_cached_int(account, jid, feature) == 1;
     }
@@ -203,13 +217,24 @@ public class EntityInfo : StreamInteractionModule, Object {
         ServiceDiscovery.InfoResult? info_result = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).request_info(stream, jid);
         if (info_result == null) return null;
 
-        if (hash != null && EntityCapabilities.Module.compute_hash_for_info_result(info_result) == hash) {
-            store_features(hash, info_result.features);
-            store_identities(hash, info_result.identities);
+        var computed_hash = EntityCapabilities.Module.compute_hash_for_info_result(info_result);
+
+        if (hash == null || computed_hash == hash) {
+            db.entity.upsert()
+                .value(db.entity.account_id, account.id, true)
+                .value(db.entity.jid_id, db.get_jid_id(jid), true)
+                .value(db.entity.resource, jid.resourcepart ?? "", true)
+                .value(db.entity.last_seen, (long)(new DateTime.now_local()).to_unix())
+                .value(db.entity.caps_hash, computed_hash)
+                .perform();
+
+            store_features(computed_hash, info_result.features);
+            store_identities(computed_hash, info_result.identities);
         } else {
-            jid_features[jid] = info_result.features;
-            jid_identity[jid] = info_result.identities;
+            warning("Claimed entity caps hash from %s doesn't match computed one", jid.to_string());
         }
+        jid_features[jid] = info_result.features;
+        jid_identity[jid] = info_result.identities;
 
         return info_result;
     }
diff --git a/libdino/src/service/muc_manager.vala b/libdino/src/service/muc_manager.vala
index 119079f0..6b52fe36 100644
--- a/libdino/src/service/muc_manager.vala
+++ b/libdino/src/service/muc_manager.vala
@@ -232,15 +232,8 @@ public class MucManager : StreamInteractionModule, Object {
 
     //the term `private room` is a short hand for members-only+non-anonymous rooms
     public bool is_private_room(Account account, Jid jid) {
-        XmppStream? stream = stream_interactor.get_stream(account);
-        if (stream == null) {
-            return false;
-        }
-        Xep.Muc.Flag? flag = stream.get_flag(Xep.Muc.Flag.IDENTITY);
-        if (flag == null) {
-            return false;
-        }
-        return flag.has_room_feature(jid, Xep.Muc.Feature.NON_ANONYMOUS) && flag.has_room_feature(jid, Xep.Muc.Feature.MEMBERS_ONLY);
+        var entity_info = stream_interactor.get_module(EntityInfo.IDENTITY);
+        return entity_info.has_feature_offline(account, jid, "muc_membersonly") && entity_info.has_feature_offline(account, jid, "muc_nonanonymous");
     }
 
     public bool is_moderated_room(Account account, Jid jid) {
-- 
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