OpenPGP: Process signatures on presences only once needed

- Incoming signatures are stored in the database and processed when needed
  (to send PGP encrypted messages or to display them in the contact details)
- Outgoing signatures are stored in the database and cached until the key is
  changed

1 files changed, 7 insertions, 1 deletions

diff --git a/plugins/openpgp/src/plugin.vala b/plugins/openpgp/src/plugin.vala
index 463058f3..32542c21 100644
--- a/plugins/openpgp/src/plugin.vala
+++ b/plugins/openpgp/src/plugin.vala
@@ -37,7 +37,13 @@ public class Plugin : Plugins.RootInterface, Object {
     public void shutdown() { }
 
     private void on_initialize_account_modules(Account account, ArrayList<Xmpp.XmppStreamModule> modules) {
-        Module module = new Module(db.get_account_key(account));
+        string signed_data = "";
+        string? sig = db.get_account_signature(account, signed_data);
+        bool sig_was_unknown = sig == null;
+        Module module = new Module(db.get_account_key(account), ref signed_data, ref sig);
+        if (sig_was_unknown && sig != null) {
+            db.set_account_signature(account, signed_data, sig);
+        }
         this.modules[account] = module;
         modules.add(module);
     }