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-rw-r--r--slixmpp/features/feature_session/session.py9
-rw-r--r--slixmpp/features/feature_session/stanza.py18
2 files changed, 21 insertions, 6 deletions
diff --git a/slixmpp/features/feature_session/session.py b/slixmpp/features/feature_session/session.py
index 2f9548eb..b525d50c 100644
--- a/slixmpp/features/feature_session/session.py
+++ b/slixmpp/features/feature_session/session.py
@@ -43,10 +43,11 @@ class FeatureSession(BasePlugin):
Arguments:
feature -- The stream features element.
"""
- iq = self.xmpp.Iq()
- iq['type'] = 'set'
- iq.enable('session')
- yield from iq.send(callback=self._on_start_session_response)
+ if not features['session']['optional']:
+ iq = self.xmpp.Iq()
+ iq['type'] = 'set'
+ iq.enable('session')
+ yield from iq.send(callback=self._on_start_session_response)
def _on_start_session_response(self, response):
self.xmpp.features.add('session')
diff --git a/slixmpp/features/feature_session/stanza.py b/slixmpp/features/feature_session/stanza.py
index f68483d6..4ed8c4db 100644
--- a/slixmpp/features/feature_session/stanza.py
+++ b/slixmpp/features/feature_session/stanza.py
@@ -6,7 +6,7 @@
See the file LICENSE for copying permission.
"""
-from slixmpp.xmlstream import ElementBase
+from slixmpp.xmlstream import ElementBase, ET
class Session(ElementBase):
@@ -16,5 +16,19 @@ class Session(ElementBase):
name = 'session'
namespace = 'urn:ietf:params:xml:ns:xmpp-session'
- interfaces = set()
+ interfaces = {'optional'}
plugin_attrib = 'session'
+
+ def get_optional(self):
+ return self.xml.find('{%s}optional' % self.namespace) is not None
+
+ def set_optional(self, value):
+ if value:
+ optional = ET.Element('{%s}optional' % self.namespace)
+ self.xml.append(optional)
+ else:
+ self.del_optional()
+
+ def del_optional(self):
+ optional = self.xml.find('{%s}optional' % self.namespace)
+ self.xml.remove(optional)