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Credentials Cache Collection Utilities
--------------------------------------
This module provides Kerberos 5 credential cache collection utilities for
Python 2.6+ and 3.
When a user authenticates to a Kerberos realm (eg. with ``kinit``), the user
has a short-lived credential in a cache (view it with ``klist``).
You can use this cccolutils module to easily determine if the user has any
valid Kerberos credentials, or what the username is for a particular Kerberos
realm.
Usage
-----
Check if the user has any valid Kerberos credentials:
.. code-block:: python
import cccolutils
authenticated = cccolutils.has_creds()
# authenticated is True or False
if authenticated:
print('This user has a valid Kerberos ticket in any credential cache.')
else:
print('no valid Kerberos ticket in any credential cache.')
Check the username for the EXAMPLE.COM realm:
.. code-block:: python
import cccolutils
username = cccolutils.get_user_for_realm('EXAMPLE.COM')
# username is a string or None
if username:
print('The user in the EXAMPLE.COM realm is %s' % username)
else:
print('No credential for the EXAMPLE.COM realm')
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