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Fix group lookup when AD DNS Referal is in lookup path 

Fix an issue when the DNS AD referal is in the path.
An Exception is raised, with the following stacktrace::

  Traceback (most recent call last):
    File "/www/lemur/lemur/auth/views.py", line 317, in post
      user = ldap_principal.authenticate()
    File "/www/lemur/lemur/auth/ldap.py", line 147, in authenticate
      self._bind()
    File "/www/lemur/lemur/auth/ldap.py", line 216, in _bind
      self.ldap_groups.append(values["cn"][0].decode("ascii"))
  TypeError: list indices must be integers or slices, not str

This is issue is trigerred by some extra rows that referrences
the DNS subtree::

   ['ldaps://DomainDnsZones.xxxx']

Limiting the extraction to the expected dicts fix this issue.
This commit is contained in:
Frederic Brin 2020-11-09 09:40:28 +01:00
parent cafc2c1d80
commit 57208fe198
1 changed files with 2 additions and 1 deletions
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3
lemur/auth/ldap.py
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@ -210,7 +210,8 @@ class LdapPrincipal:
self.ldap_groups = []
for group in lgroups:
(dn, values) = group
self.ldap_groups.append(values["cn"][0].decode("ascii"))
if type(values) == dict:
self.ldap_groups.append(values["cn"][0].decode("ascii"))
else:
lgroups = self.ldap_client.search_s(
self.ldap_base_dn, ldap.SCOPE_SUBTREE, ldap_filter, self.ldap_attrs