Add PGP Legacy (XEP-0027) module

3 files changed, 30 insertions, 3 deletions

diff --git a/nbxmpp/dispatcher.py b/nbxmpp/dispatcher.py
index a70ed01..f78a5bd 100644
--- a/nbxmpp/dispatcher.py
+++ b/nbxmpp/dispatcher.py
@@ -50,7 +50,7 @@ from nbxmpp.modules.nickname import Nickname
 from nbxmpp.modules.delay import Delay
 from nbxmpp.modules.muc import MUC
 from nbxmpp.modules.idle import Idle
-from nbxmpp.modules.signed import Signed
+from nbxmpp.modules.pgplegacy import PGPLegacy
 from nbxmpp.modules.vcard_avatar import VCardAvatar
 from nbxmpp.modules.captcha import Captcha
 from nbxmpp.modules.entity_caps import EntityCaps
@@ -187,7 +187,7 @@ class XMPPDispatcher(PlugIn):
         self._modules['Delay'] = Delay(self._owner)
         self._modules['Captcha'] = Captcha(self._owner)
         self._modules['Idle'] = Idle(self._owner)
-        self._modules['Signed'] = Signed(self._owner)
+        self._modules['PGPLegacy'] = PGPLegacy(self._owner)
         self._modules['VCardAvatar'] = VCardAvatar(self._owner)
         self._modules['EntityCaps'] = EntityCaps(self._owner)
         self._modules['Blocking'] = Blocking(self._owner)
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
diff --git a/nbxmpp/structs.py b/nbxmpp/structs.py
index f0d72a6..1ff6a8b 100644
--- a/nbxmpp/structs.py
+++ b/nbxmpp/structs.py
@@ -206,6 +206,7 @@ class MessageProperties:
         self.openpgp = None
         self.omemo = None
         self.encrypted = None
+        self.pgp_legacy = None
 
     @property
     def has_user_delay(self):
@@ -224,6 +225,10 @@ class MessageProperties:
         return self.openpgp is not None
 
     @property
+    def is_pgp_legacy(self):
+        return self.pgp_legacy is not None
+
+    @property
     def is_pubsub(self):
         return self.pubsub