Add PGP Legacy (XEP-0027) module

1 files changed, 23 insertions, 1 deletions

diff --git a/nbxmpp/modules/signed.py b/nbxmpp/modules/pgplegacy.py
index 159e491..256b89f 100644
--- a/nbxmpp/modules/signed.py
+++ b/nbxmpp/modules/pgplegacy.py
@@ -18,15 +18,20 @@
 import logging
 
 from nbxmpp.protocol import NS_SIGNED
+from nbxmpp.protocol import NS_ENCRYPTED
 from nbxmpp.structs import StanzaHandler
 
 log = logging.getLogger('nbxmpp.m.signed')
 
 
-class Signed:
+class PGPLegacy:
     def __init__(self, client):
         self._client = client
         self.handlers = [
+            StanzaHandler(name='message',
+                          callback=self._process_pgplegacy_message,
+                          ns=NS_ENCRYPTED,
+                          priority=7),
             StanzaHandler(name='presence',
                           callback=self._process_signed,
                           ns=NS_SIGNED,
@@ -40,3 +45,20 @@ class Signed:
             return
 
         properties.signed = signed.getData()
+
+    @staticmethod
+    def _process_pgplegacy_message(_con, stanza, properties):
+        pgplegacy = stanza.getTag('x', namespace=NS_ENCRYPTED)
+        if pgplegacy is None:
+            log.warning('No x node found')
+            log.warning(stanza)
+            return
+
+        data = pgplegacy.getData()
+        if not data:
+            log.warning('No data in x node found')
+            log.warning(stanza)
+            return
+
+        log.info('Encrypted message received')
+        properties.pgp_legacy = data