StandardError was removed in Python3 and instead
Exception should be used.
Signed-off-by: Robert Kuska <rkuska@redhat.com>
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
Create a platform task for setting SELinux booleans.
Use an exception for the case when the booleans could not be set
(since this is an error if not handled).
Since ipaplatform should not depend on ipalib, create a new
errors module in ipapython for SetseboolError.
Handle uninstallation with the same task, which means
the booleans are now restored with a single call to
setsebool.
Preparation for: https://fedorahosted.org/freeipa/ticket/4157
Fixes: https://fedorahosted.org/freeipa/ticket/2934
Fixes: https://fedorahosted.org/freeipa/ticket/2519
Reviewed-By: Thierry Bordaz <tbordaz@redhat.com>
