200 lines
7.5 KiB
Python
200 lines
7.5 KiB
Python
# Copyright (c) 2014 Rackspace US, Inc
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# All Rights Reserved.
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#
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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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import os
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import stat
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import uuid
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from oslo_config import cfg
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from oslo_log import log as logging
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from octavia.certificates.common import local as local_common
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from octavia.certificates.manager import cert_mgr
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from octavia.common import exceptions
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CONF = cfg.CONF
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LOG = logging.getLogger(__name__)
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class LocalCertManager(cert_mgr.CertManager):
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"""Cert Manager Interface that stores data locally."""
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@staticmethod
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def store_cert(context, certificate, private_key, intermediates=None,
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private_key_passphrase=None, **kwargs):
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"""Stores (i.e., registers) a cert with the cert manager.
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This method stores the specified cert to the filesystem and returns
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a UUID that can be used to retrieve it.
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:param context: Ignored in this implementation
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:param certificate: PEM encoded TLS certificate
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:param private_key: private key for the supplied certificate
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:param intermediates: ordered and concatenated intermediate certs
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:param private_key_passphrase: optional passphrase for the supplied key
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:returns: the UUID of the stored cert
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:raises CertificateStorageException: if certificate storage fails
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"""
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cert_ref = str(uuid.uuid4())
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filename_base = os.path.join(CONF.certificates.storage_path, cert_ref)
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LOG.info("Storing certificate data on the local filesystem.")
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try:
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filename_certificate = "{0}.crt".format(filename_base)
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flags = os.O_WRONLY | os.O_CREAT
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mode = stat.S_IRUSR | stat.S_IWUSR # mode 0600
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with os.fdopen(os.open(
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filename_certificate, flags, mode), 'w') as cert_file:
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cert_file.write(certificate)
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filename_private_key = "{0}.key".format(filename_base)
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with os.fdopen(os.open(
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filename_private_key, flags, mode), 'w') as key_file:
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key_file.write(private_key)
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if intermediates:
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filename_intermediates = "{0}.int".format(filename_base)
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with os.fdopen(os.open(
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filename_intermediates, flags, mode), 'w') as int_file:
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int_file.write(intermediates)
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if private_key_passphrase:
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filename_pkp = "{0}.pass".format(filename_base)
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with os.fdopen(os.open(
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filename_pkp, flags, mode), 'w') as pass_file:
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pass_file.write(private_key_passphrase)
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except IOError as ioe:
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LOG.error("Failed to store certificate.")
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raise exceptions.CertificateStorageException(message=ioe.message)
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return cert_ref
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@staticmethod
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def get_cert(context, cert_ref, **kwargs):
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"""Retrieves the specified cert.
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:param context: Ignored in this implementation
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:param cert_ref: the UUID of the cert to retrieve
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:return: octavia.certificates.common.Cert representation of the
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certificate data
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:raises CertificateStorageException: if certificate retrieval fails
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"""
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LOG.info("Loading certificate %s from the local filesystem.", cert_ref)
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filename_base = os.path.join(CONF.certificates.storage_path, cert_ref)
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filename_certificate = "{0}.crt".format(filename_base)
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filename_private_key = "{0}.key".format(filename_base)
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filename_intermediates = "{0}.int".format(filename_base)
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filename_pkp = "{0}.pass".format(filename_base)
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cert_data = dict()
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flags = os.O_RDONLY
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try:
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with os.fdopen(os.open(filename_certificate, flags)) as cert_file:
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cert_data['certificate'] = cert_file.read()
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except IOError:
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LOG.error("Failed to read certificate for %s.", cert_ref)
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raise exceptions.CertificateStorageException(
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msg="Certificate could not be read.")
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try:
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with os.fdopen(os.open(filename_private_key, flags)) as key_file:
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cert_data['private_key'] = key_file.read()
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except IOError:
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LOG.error("Failed to read private key for %s", cert_ref)
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raise exceptions.CertificateStorageException(
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msg="Private Key could not be read.")
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try:
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with os.fdopen(os.open(filename_intermediates, flags)) as int_file:
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cert_data['intermediates'] = int_file.read()
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except IOError:
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pass
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try:
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with os.fdopen(os.open(filename_pkp, flags)) as pass_file:
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cert_data['private_key_passphrase'] = pass_file.read()
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except IOError:
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pass
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return local_common.LocalCert(**cert_data)
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@staticmethod
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def delete_cert(context, cert_ref, **kwargs):
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"""Deletes the specified cert.
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:param context: Ignored in this implementation
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:param cert_ref: the UUID of the cert to delete
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:raises CertificateStorageException: if certificate deletion fails
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"""
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LOG.info("Deleting certificate %s from the local filesystem.",
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cert_ref)
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filename_base = os.path.join(CONF.certificates.storage_path, cert_ref)
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filename_certificate = "{0}.crt".format(filename_base)
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filename_private_key = "{0}.key".format(filename_base)
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filename_intermediates = "{0}.int".format(filename_base)
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filename_pkp = "{0}.pass".format(filename_base)
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try:
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os.remove(filename_certificate)
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os.remove(filename_private_key)
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os.remove(filename_intermediates)
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os.remove(filename_pkp)
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except IOError as ioe:
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LOG.error("Failed to delete certificate %s", cert_ref)
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raise exceptions.CertificateStorageException(message=ioe.message)
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def set_acls(self, context, cert_ref):
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# There is no security on this store, because it's really dumb
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pass
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def unset_acls(self, context, cert_ref):
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# There is no security on this store, because it's really dumb
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pass
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@staticmethod
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def get_secret(context, secret_ref):
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"""Retrieves a secret payload by reference.
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:param context: Ignored in this implementation
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:param secret_ref: The secret reference ID
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:return: The secret payload
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:raises CertificateStorageException: if secret retrieval fails
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"""
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LOG.info("Loading secret %s from the local filesystem.", secret_ref)
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filename_base = os.path.join(CONF.certificates.storage_path,
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secret_ref)
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filename_secret = "{0}.pem".format(filename_base)
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secret_data = None
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flags = os.O_RDONLY
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try:
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with os.fdopen(os.open(filename_secret, flags)) as secret_file:
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secret_data = secret_file.read()
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except IOError:
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LOG.error("Failed to read secret for %s.", secret_ref)
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raise exceptions.CertificateRetrievalException(ref=secret_ref)
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return secret_data
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