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Add assert_absolute_dnsname() helper to ipapython.dnsutil

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Sanity check for zone names and such should be the same everywhere.
This new function will be a replacement for ad-hoc checks.

https://fedorahosted.org/freeipa/ticket/5710

Reviewed-By: Martin Basti <mbasti@redhat.com>
This commit is contained in:
Petr Spacek 2016-03-07 13:24:31 +01:00 committed by Petr Vobornik
parent bd32b48eb0
commit 41464b74f4
1 changed files with 19 additions and 0 deletions
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19
ipapython/dnsutil.py
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@ -166,3 +166,22 @@ EMPTY_ZONES = [DNSName(aez).make_absolute() for aez in [
# RFC 7534 # RFC 7534
"EMPTY.AS112.ARPA", "EMPTY.AS112.ARPA",
]] ]]
def assert_absolute_dnsname(name):
"""Raise AssertionError if name is not DNSName or is not absolute.
>>> assert_absolute_dnsname(DNSName('absolute.name.example.'))
>>> assert_absolute_dnsname(DNSName('relative.name.example'))
Traceback (most recent call last):
...
AssertionError: name must be absolute, ...
>>> assert_absolute_dnsname('absolute.string.example.')
Traceback (most recent call last):
...
AssertionError: name must be DNSName instance, ...
"""
assert isinstance(name, DNSName), ("name must be DNSName instance, "
"got '%s'" % type(name))
assert name.is_absolute(), "name must be absolute, got '%s'" % name