[openpgp] Save encryption details

openpgp/modules/util.py

@@ -29,6 +29,7 @@ from nbxmpp import Node
 
 from gajim.common.modules.date_and_time import parse_datetime
 
+ENCRYPTION_NAME = 'OpenPGP'
 NS_OPENPGP = 'urn:xmpp:openpgp:0'
 NS_OPENPGP_PUBLIC_KEYS = 'urn:xmpp:openpgp:0:public-keys'
 NS_NOTIFY = NS_OPENPGP_PUBLIC_KEYS + '+notify'
@@ -206,6 +207,11 @@ def get_info_message():
     return '[This message is *encrypted* with OpenPGP (See :XEP:`0373`]'
 
 
+def add_additional_data(data, fingerprint, trust):
+    data['encrypted'] = {'name': ENCRYPTION_NAME,
+                         'fingerprint': fingerprint}
+
+
 class VerifyFailed(Exception):
     pass