using Signal; using Qlite; namespace Dino.Plugins.Omemo { private class BackedPreKeyStore : SimplePreKeyStore { private Database db; private int identity_id; public BackedPreKeyStore(Database db, int identity_id) { this.db = db; this.identity_id = identity_id; init(); } private void init() { try { foreach (Row row in db.pre_key.select().with(db.pre_key.identity_id, "=", identity_id)) { store_pre_key(row[db.pre_key.pre_key_id], Base64.decode(row[db.pre_key.record_base64])); } } catch (Error e) { warning("Error while initializing pre key store: %s", e.message); } pre_key_stored.connect(on_pre_key_stored); pre_key_deleted.connect(on_pre_key_deleted); } public void on_pre_key_stored(PreKeyStore.Key key) { db.pre_key.insert().or("REPLACE") .value(db.pre_key.identity_id, identity_id) .value(db.pre_key.pre_key_id, (int) key.key_id) .value(db.pre_key.record_base64, Base64.encode(key.record)) .perform(); } public void on_pre_key_deleted(PreKeyStore.Key key) { db.pre_key.delete() .with(db.pre_key.identity_id, "=", identity_id) .with(db.pre_key.pre_key_id, "=", (int) key.key_id) .perform(); } } }