Allow GSS to work with older version of kerberos library

thobbs · Jan 5, 2015 · 6249ccd · 6249ccd
1 parent e54d2e1
commit 6249ccd
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/puresasl/mechanisms.py b/puresasl/mechanisms.py
@@ -452,8 +452,14 @@ def __init__(self, sasl, principal=None, **props):
         self._fetch_properties('host', 'service')
 
         krb_service = b'@'.join((bytes(self.service), bytes(self.host)))
-        _, self.context = kerberos.authGSSClientInit(
-                service=krb_service, principal=self.principal)
+        try:
+            _, self.context = kerberos.authGSSClientInit(
+                    service=krb_service, principal=self.principal)
+        except TypeError:
+            if self.principal is not None:
+                raise StandardError("Error: kerberos library does not support principal.")
+            _, self.context = kerberos.authGSSClientInit(
+                    service=krb_service)
 
     def process(self, challenge=None):
         if not self._have_negotiated_details: