43 lines
1.5 KiB
Python
43 lines
1.5 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Anchor internally used validators. They should not be exposed to the
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users.
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"""
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from anchor.validators import errors as v_errors
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from anchor.X509 import extension
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def ca_status(csr=None, **kwargs):
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"""Ensure the request hasn't got the CA or cert signing flag.
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This validation applies both to the BasicConstraints extension and to the
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KeyUsage extension.
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"""
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basic_constraint = csr.get_extensions(
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extension.X509ExtensionBasicConstraints)
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if basic_constraint:
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if basic_constraint[0].get_ca():
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raise v_errors.ValidationError(
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"Request is for a CA certificate")
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key_usage = csr.get_extensions(extension.X509ExtensionKeyUsage)
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if key_usage:
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if key_usage[0].get_usage('keyCertSign'):
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raise v_errors.ValidationError(
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"Request contains certificates signing usage flag")
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if key_usage[0].get_usage('cRLSign'):
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raise v_errors.ValidationError(
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"Request contains CRL signing usage flag")
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