gajim: don't crash when we get a wrong feature negotiation form

[Gajim]

changeset 63d0d2393b63 in /home/hg/repos/gajim

author: Yann Leboulanger <aste...@lagaule.org>
branches: gajim_0.16
details:http://hg.gajim.org/gajim?cmd=changeset;node=63d0d2393b63
description: don't crash when we get a wrong feature negotiation form

diffstat:

 src/common/connection_handlers_events.py |  3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diffs (13 lines):

diff -r 2faa34b18a19 -r 63d0d2393b63 src/common/connection_handlers_events.py
--- a/src/common/connection_handlers_events.py  Sun Nov 20 14:05:21 2016 +0100
+++ b/src/common/connection_handlers_events.py  Thu Nov 24 22:42:33 2016 +0100
@@ -1272,6 +1272,9 @@
                 if not form:
                     return
 
+                if not form.getField('FORM_TYPE'):
+                    return
+                
                 if form['FORM_TYPE'] == 'urn:xmpp:ssn':
                     self.session.handle_negotiation(form)
                 else:
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