42 lines
1.2 KiB
Python
42 lines
1.2 KiB
Python
# Copyright (c) 2018 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import socket
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class FilterModule(object):
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def dns(self, value, family):
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ret = set()
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try:
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addr_info = socket.getaddrinfo(value, None, family)
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except socket.gaierror:
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return ret
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for addr in addr_info:
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ret.add(addr[4][0])
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return sorted(ret)
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def dns_a(self, value):
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return self.dns(value, socket.AF_INET)
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def dns_aaaa(self, value):
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return self.dns(value, socket.AF_INET6)
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def filters(self):
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return {
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'dns_a': self.dns_a,
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'dns_aaaa': self.dns_aaaa,
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}
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