1 files changed, 69 insertions, 0 deletions
diff --git a/main/src/plugins/omemo/logic/session_store.vala b/main/src/plugins/omemo/logic/session_store.vala
new file mode 100644
index 00000000..883e1caa
--- /dev/null
+++ b/main/src/plugins/omemo/logic/session_store.vala
@@ -0,0 +1,69 @@
+using Dino.Crypto.Omemo;
+using Dino.Qlite;
+using Omemo;
+
+namespace Dino.Plugins.Omemo {
+
+private class BackedSessionStore : SessionStore {
+    private Database db;
+    private int identity_id;
+
+    public BackedSessionStore(Database db, int identity_id) {
+        this.db = db;
+        this.identity_id = identity_id;
+    }
+
+    public override uint8[]? load_session(Address address) throws Crypto.Error {
+        RowOption row = db.session.select({db.session.record_base64})
+                .with(db.session.identity_id, "=", identity_id)
+                .with(db.session.address_name, "=", address.name)
+                .with(db.session.device_id, "=", address.device_id)
+                .single().row();
+        if (!row.is_present()) return null;
+        return Base64.decode(row[db.session.record_base64]);
+    }
+
+    public override IntList get_sub_device_sessions(string name) throws Crypto.Error {
+        IntList res = new IntList();
+        foreach (Row row in db.session.select({db.session.device_id})
+                .with(db.session.identity_id, "=", identity_id)
+                .with(db.session.address_name, "=", name)) {
+            res.add(row[db.session.device_id]);
+        }
+        return res;
+    }
+
+    public override void store_session(Address address, uint8[] record) throws Crypto.Error {
+        db.session.upsert()
+                .value(db.session.identity_id, identity_id, true)
+                .value(db.session.address_name, address.name, true)
+                .value(db.session.device_id, address.device_id, true)
+                .value(db.session.record_base64, Base64.encode(record))
+                .perform();
+    }
+
+    public override bool contains_session(Address address) throws Crypto.Error {
+        return db.session.select({db.session.device_id})
+                .with(db.session.identity_id, "=", identity_id)
+                .with(db.session.address_name, "=", address.name)
+                .with(db.session.device_id, "=", address.device_id)
+                .count() > 0;
+    }
+
+    public override void delete_session(Address address) throws Crypto.Error {
+        db.session.delete()
+                .with(db.session.identity_id, "=", identity_id)
+                .with(db.session.address_name, "=", address.name)
+                .with(db.session.device_id, "=", address.device_id)
+                .perform();
+    }
+
+    public override void delete_all_sessions(string name) throws Crypto.Error {
+        db.session.delete()
+                .with(db.session.identity_id, "=", identity_id)
+                .with(db.session.address_name, "=", name)
+                .perform();
+    }
+}
+
+}