def delete(self, context, key_id):
"""Represents deleting the key."""
# Confirm context is provided, if not raise forbidden
if not context:
msg = _("User is not authorized to use key manager.")
raise exception.Forbidden(msg)
if not key_id:
raise exception.KeyManagerError('key identifier not provided')
headers = {'X-Vault-Token': self._root_token_id}
try:
resource_url = self._get_url() + 'v1/secret/' + key_id
resp = self._session.delete(resource_url,
verify=self._verify_server,
headers=headers)
except requests.exceptions.Timeout as ex:
raise exception.KeyManagerError(six.text_type(ex))
except requests.exceptions.ConnectionError as ex:
raise exception.KeyManagerError(six.text_type(ex))
except Exception as ex:
raise exception.KeyManagerError(six.text_type(ex))
if resp.status_code in _EXCEPTIONS_BY_CODE:
raise exception.KeyManagerError(resp.reason)
if resp.status_code == requests.codes['forbidden']:
raise exception.Forbidden()
if resp.status_code == requests.codes['not_found']:
raise exception.ManagedObjectNotFoundError(uuid=key_id)
def get(self, context, key_id, metadata_only=False):
"""Retrieves the key identified by the specified id."""
# Confirm context is provided, if not raise forbidden
if not context:
msg = _("User is not authorized to use key manager.")
raise exception.Forbidden(msg)
if not key_id:
raise exception.KeyManagerError('key identifier not provided')
headers = {'X-Vault-Token': self._root_token_id}
try:
resource_url = self._get_url() + 'v1/secret/' + key_id
resp = self._session.get(resource_url,
verify=self._verify_server,
headers=headers)
except requests.exceptions.Timeout as ex:
raise exception.KeyManagerError(six.text_type(ex))
except requests.exceptions.ConnectionError as ex:
raise exception.KeyManagerError(six.text_type(ex))
except Exception as ex:
raise exception.KeyManagerError(six.text_type(ex))
if resp.status_code in _EXCEPTIONS_BY_CODE:
raise exception.KeyManagerError(resp.reason)
if resp.status_code == requests.codes['forbidden']:
raise exception.Forbidden()
if resp.status_code == requests.codes['not_found']:
raise exception.ManagedObjectNotFoundError(uuid=key_id)
record = resp.json()['data']
key = None if metadata_only else binascii.unhexlify(record['value'])
clazz = None
for type_clazz, type_name in self._secret_type_dict.items():
if type_name == record['type']:
clazz = type_clazz
if clazz is None:
raise exception.KeyManagerError("Unknown type : %r" %
record['type'])
if hasattr(clazz, 'algorithm') and hasattr(clazz, 'bit_length'):
return clazz(record['algorithm'], record['bit_length'], key,
record['name'], record['created'], key_id)
else:
return clazz(key, record['name'], record['created'], key_id)
def create_key_pair(self,
context,
algorithm,
length,
expiration=None,
name=None):
"""Creates an asymmetric key pair.
This implementation returns UUIDs for the created keys in the order:
(private, public)
Forbidden is raised if the context is None.
"""
if context is None:
raise exception.Forbidden()
if algorithm.lower() != 'rsa':
msg = 'Invalid algorithm: {}, only RSA supported'.format(algorithm)
raise ValueError(msg)
valid_lengths = [2048, 3072, 4096]
if length not in valid_lengths:
msg = 'Invalid bit length: {}, only {} supported'.format(
length, valid_lengths)
raise ValueError(msg)
private_key, public_key = self._generate_public_and_private_key(
length, name)
private_key_uuid = self.store(context, private_key)
public_key_uuid = self.store(context, public_key)
return private_key_uuid, public_key_uuid
def list(self, context, object_type=None, metadata_only=False):
"""Lists the managed objects given the criteria."""
# Confirm context is provided, if not raise forbidden
if not context:
msg = _("User is not authorized to use key manager.")
raise exception.Forbidden(msg)
if object_type and object_type not in self._secret_type_dict:
msg = _("Invalid secret type: %s") % object_type
raise exception.KeyManagerError(reason=msg)
resp = self._do_http_request(self._session.get,
self._get_resource_url())
if resp.status_code == requests.codes['not_found']:
keys = []
else:
keys = resp.json()['data']['keys']
objects = []
for obj_id in keys:
try:
obj = self.get(context, obj_id, metadata_only=metadata_only)
if object_type is None or isinstance(obj, object_type):
objects.append(obj)
except exception.ManagedObjectNotFoundError as e:
LOG.warning(
_("Error occurred while retrieving object "
"metadata, not adding it to the list: %s"), e)
pass
return objects
def test_generate_symmetric_key_raises_exception(self):
key_spec = ss.KeySpec(ss.KeyAlgorithm.AES, 128)
self.plugin.key_manager.create_key.side_effect = exception.Forbidden()
self.assertRaises(
ss.SecretGeneralException,
self.plugin.generate_symmetric_key,
key_spec
)
def test_delete_secret_throws_exception(self):
secret_metadata = {css.CastellanSecretStore.KEY_ID: key_ref1}
self.plugin.key_manager.delete.side_effect = exception.Forbidden()
self.assertRaises(
ss.SecretGeneralException,
self.plugin.delete_secret,
secret_metadata
)
def list(self, context, object_type=None, metadata_only=False):
"""Lists the managed objects given the criteria."""
# Confirm context is provided, if not raise forbidden
if not context:
msg = _("User is not authorized to use key manager.")
raise exception.Forbidden(msg)
if object_type and object_type not in self._secret_type_dict:
msg = _("Invalid secret type: %s") % object_type
raise exception.KeyManagerError(reason=msg)
headers = {'X-Vault-Token': self._root_token_id}
try:
resource_url = self._get_url() + 'v1/secret/?list=true'
resp = self._session.get(resource_url,
verify=self._verify_server,
headers=headers)
keys = resp.json()['data']['keys']
except requests.exceptions.Timeout as ex:
raise exception.KeyManagerError(six.text_type(ex))
except requests.exceptions.ConnectionError as ex:
raise exception.KeyManagerError(six.text_type(ex))
except Exception as ex:
raise exception.KeyManagerError(six.text_type(ex))
if resp.status_code in _EXCEPTIONS_BY_CODE:
raise exception.KeyManagerError(resp.reason)
if resp.status_code == requests.codes['forbidden']:
raise exception.Forbidden()
if resp.status_code == requests.codes['not_found']:
keys = []
objects = []
for obj_id in keys:
try:
obj = self.get(context, obj_id, metadata_only=metadata_only)
if object_type is None or isinstance(obj, object_type):
objects.append(obj)
except exception.ManagedObjectNotFoundError as e:
LOG.warning(
_("Error occurred while retrieving object "
"metadata, not adding it to the list: %s"), e)
pass
return objects
def test_get_secret_throws_exception(self):
secret_metadata = self.plugin._meta_dict(key_ref1, 256, 'AES')
self.plugin.key_manager.get.side_effect = exception.Forbidden()
self.assertRaises(
ss.SecretGeneralException,
self.plugin.get_secret,
ss.SecretType.SYMMETRIC,
secret_metadata
)
def store(self, context, managed_object, **kwargs):
"""Stores (i.e., registers) a key with the key manager."""
if context is None:
raise exception.Forbidden()
key_id = self._generate_key_id()
self.keys[key_id] = managed_object
return key_id
def delete(self, context, managed_object_id, **kwargs):
"""Deletes the object identified by the specified id.
A Forbidden exception is raised if the context is None and a
KeyError is raised if the UUID is invalid.
"""
if context is None:
raise exception.Forbidden()
del self.keys[managed_object_id]
def delete(self, context, managed_object_id):
if managed_object_id == self.fixed_key_id:
LOG.debug("Not deleting key associated with"
" fixed_key key ID")
if context is None:
raise exception.Forbidden()
else:
super(MigrationKeyManager,
self).delete(context, managed_object_id)
def store(self, context, key_value, **kwargs):
"""Stores (i.e., registers) a key with the key manager."""
# Confirm context is provided, if not raise forbidden
if not context:
msg = _("User is not authorized to use key manager.")
raise exception.Forbidden(msg)
key_id = uuid.uuid4().hex
return self._store_key_value(key_id, key_value)
def test_generate_asymmetric_throws_exception(self):
key_spec = ss.KeySpec(ss.KeyAlgorithm.RSA, 2048)
self.plugin.key_manager.create_key_pair.side_effect = (
exception.Forbidden()
)
self.assertRaises(
ss.SecretGeneralException,
self.plugin.generate_asymmetric_key,
key_spec
)
def test_store_secret_raises_exception(self):
payload = 'encrypt me!!'
key_spec = mock.MagicMock()
content_type = mock.MagicMock()
transport_key = None
secret_dto = ss.SecretDTO(ss.SecretType.SYMMETRIC, payload, key_spec,
content_type, transport_key)
self.plugin.key_manager.store.side_effect = exception.Forbidden()
self.assertRaises(ss.SecretGeneralException, self.plugin.store_secret,
secret_dto)
def get(self, context, managed_object_id, **kwargs):
"""Retrieves the key identified by the specified id.
This implementation returns the key that is associated with the
specified UUID. A Forbidden exception is raised if the specified
context is None; a KeyError is raised if the UUID is invalid.
"""
if context is None:
raise exception.Forbidden()
return self.keys[managed_object_id]
def create_key(self, context, **kwargs):
"""Creates a symmetric key.
This implementation returns a UUID for the created key. The algorithm
for the key will always be AES. A Forbidden exception is raised if the
specified context is None.
"""
if context is None:
raise exception.Forbidden()
key = self._generate_key(**kwargs)
return self.store(context, key)
def create_key(self, context, algorithm, length, name=None, **kwargs):
"""Creates a symmetric key."""
# Confirm context is provided, if not raise forbidden
if not context:
msg = _("User is not authorized to use key manager.")
raise exception.Forbidden(msg)
key_id = uuid.uuid4().hex
key_value = os.urandom(length or 32)
key = sym_key.SymmetricKey(algorithm, length or 32, key_value, key_id,
name or int(time.time()))
return self._store_key_value(key_id, key)
def list(self, context, object_type=None, metadata_only=False):
"""Retrieves a list of managed objects that match the criteria.
A Forbidden exception is raised if the context is None.
If no search criteria is given, all objects are returned.
"""
if context is None:
raise exception.Forbidden()
objects = []
for obj_id in self.keys:
obj = self.get(context, obj_id, metadata_only=metadata_only)
if type(obj) == object_type or object_type is None:
objects.append(obj)
return objects
def delete(self, context, key_id):
"""Represents deleting the key."""
# Confirm context is provided, if not raise forbidden
if not context:
msg = _("User is not authorized to use key manager.")
raise exception.Forbidden(msg)
if not key_id:
raise exception.KeyManagerError('key identifier not provided')
resp = self._do_http_request(self._session.delete,
self._get_resource_url(key_id))
if resp.status_code == requests.codes['not_found']:
raise exception.ManagedObjectNotFoundError(uuid=key_id)
def get(self, context, managed_object_id):
if managed_object_id == self.fixed_key_id:
LOG.debug("Processing request for secret associated"
" with fixed_key key ID")
if context is None:
raise exception.Forbidden()
key_bytes = bytes(binascii.unhexlify(self.fixed_key))
secret = symmetric_key.SymmetricKey(
'AES',
len(key_bytes) * 8, key_bytes)
else:
secret = super(MigrationKeyManager,
self).get(context, managed_object_id)
return secret
def _get_keystone_auth(self, context):
if context.__class__.__name__ == 'KeystonePassword':
return identity.Password(
auth_url=context.auth_url,
username=context.username,
password=context.password,
user_id=context.user_id,
user_domain_id=context.user_domain_id,
user_domain_name=context.user_domain_name,
trust_id=context.trust_id,
domain_id=context.domain_id,
domain_name=context.domain_name,
project_id=context.project_id,
project_name=context.project_name,
project_domain_id=context.project_domain_id,
project_domain_name=context.project_domain_name,
reauthenticate=context.reauthenticate)
elif context.__class__.__name__ == 'KeystoneToken':
return identity.Token(
auth_url=context.auth_url,
token=context.token,
trust_id=context.trust_id,
domain_id=context.domain_id,
domain_name=context.domain_name,
project_id=context.project_id,
project_name=context.project_name,
project_domain_id=context.project_domain_id,
project_domain_name=context.project_domain_name,
reauthenticate=context.reauthenticate)
# this will be kept for oslo.context compatibility until
# projects begin to use utils.credential_factory
elif context.__class__.__name__ == 'RequestContext':
if getattr(context, 'get_auth_plugin', None):
return context.get_auth_plugin()
else:
return identity.Token(
auth_url=self.conf.barbican.auth_endpoint,
token=context.auth_token,
project_id=context.project_id,
project_name=context.project_name,
project_domain_id=context.project_domain_id,
project_domain_name=context.project_domain_name)
else:
msg = _("context must be of type KeystonePassword, "
"KeystoneToken, or RequestContext.")
LOG.error(msg)
raise exception.Forbidden(reason=msg)
def get(self, context, managed_object_id, metadata_only=False, **kwargs):
"""Retrieves the key identified by the specified id.
This implementation returns the key that is associated with the
specified UUID. A Forbidden exception is raised if the specified
context is None; a KeyError is raised if the UUID is invalid.
"""
if context is None:
raise exception.Forbidden()
obj = self.keys[managed_object_id]
if metadata_only:
if hasattr(obj, "_key"):
obj._key = None
if hasattr(obj, "_data"):
obj._data = None
if hasattr(obj, "_passphrase"):
obj._passphrase = None
return obj
def _do_http_request(self, method, resource, json=None):
verify = self._verify_server
headers = self._build_auth_headers()
try:
resp = method(resource, headers=headers, json=json, verify=verify)
except requests.exceptions.Timeout as ex:
raise exception.KeyManagerError(six.text_type(ex))
except requests.exceptions.ConnectionError as ex:
raise exception.KeyManagerError(six.text_type(ex))
except Exception as ex:
raise exception.KeyManagerError(six.text_type(ex))
if resp.status_code in _EXCEPTIONS_BY_CODE:
raise exception.KeyManagerError(resp.reason)
if resp.status_code == requests.codes['forbidden']:
raise exception.Forbidden()
return resp
def _get_barbican_client(self, context):
"""Creates a client to connect to the Barbican service.
:param context: the user context for authentication
:return: a Barbican Client object
:raises Forbidden: if the context is None
:raises KeyManagerError: if context is missing tenant or tenant is
None or error occurs while creating client
"""
# Confirm context is provided, if not raise forbidden
if not context:
msg = u._("User is not authorized to use key manager.")
LOG.error(msg)
raise exception.Forbidden(msg)
if not hasattr(context, 'tenant') or context.tenant is None:
msg = u._("Unable to create Barbican Client without tenant "
"attribute in context object.")
LOG.error(msg)
raise exception.KeyManagerError(reason=msg)
if self._barbican_client and self._current_context == context:
return self._barbican_client
try:
self._current_context = context
auth = self._get_keystone_auth(context)
sess = session.Session(auth=auth)
self._barbican_endpoint = self._get_barbican_endpoint(auth, sess)
self._barbican_client = barbican_client.Client(
session=sess, endpoint=self._barbican_endpoint)
except Exception as e:
LOG.error(u._LE("Error creating Barbican client: %s"), e)
raise exception.KeyManagerError(reason=e)
self._base_url = self._create_base_url(auth, sess,
self._barbican_endpoint)
return self._barbican_client
def _get_keystone_auth(self, context):
auth_url = self.conf.barbican.auth_endpoint
if context.__class__.__name__ is 'KeystonePassword':
return identity.v3.Password(
auth_url=auth_url,
username=context.username,
password=context.password,
user_id=context.user_id,
user_domain_id=context.user_domain_id,
user_domain_name=context.user_domain_name,
trust_id=context.trust_id,
domain_id=context.domain_id,
domain_name=context.domain_name,
project_id=context.project_id,
project_name=context.project_name,
project_domain_id=context.project_domain_id,
project_domain_name=context.project_domain_name,
reauthenticate=context.reauthenticate)
elif context.__class__.__name__ is 'KeystoneToken':
return identity.v3.Token(
auth_url=auth_url,
token=context.token,
trust_id=context.trust_id,
domain_id=context.domain_id,
domain_name=context.domain_name,
project_id=context.project_id,
project_name=context.project_name,
project_domain_id=context.project_domain_id,
project_domain_name=context.project_domain_name,
reauthenticate=context.reauthenticate)
# this will be kept for oslo.context compatibility until
# projects begin to use utils.credential_factory
elif context.__class__.__name__ is 'RequestContext':
return identity.v3.Token(auth_url=auth_url,
token=context.auth_token,
project_id=context.tenant)
else:
msg = "context must be of type KeystonePassword, KeystoneToken, "
"or RequestContext."
LOG.error(msg)
raise exception.Forbidden(reason=msg)
def _store_key_value(self, key_id, value):
type_value = self._secret_type_dict.get(type(value))
if type_value is None:
raise exception.KeyManagerError("Unknown type for value : %r" %
value)
headers = {'X-Vault-Token': self._root_token_id}
try:
resource_url = self._get_url() + 'v1/secret/' + key_id
record = {
'type':
type_value,
'value':
binascii.hexlify(value.get_encoded()).decode('utf-8'),
'algorithm':
(value.algorithm if hasattr(value, 'algorithm') else None),
'bit_length':
(value.bit_length if hasattr(value, 'bit_length') else None),
'name':
value.name,
'created':
value.created
}
resp = self._session.post(resource_url,
verify=self._verify_server,
json=record,
headers=headers)
except requests.exceptions.Timeout as ex:
raise exception.KeyManagerError(six.text_type(ex))
except requests.exceptions.ConnectionError as ex:
raise exception.KeyManagerError(six.text_type(ex))
except Exception as ex:
raise exception.KeyManagerError(six.text_type(ex))
if resp.status_code in _EXCEPTIONS_BY_CODE:
raise exception.KeyManagerError(resp.reason)
if resp.status_code == requests.codes['forbidden']:
raise exception.Forbidden()
return key_id
def _get_barbican_client(self, context):
"""Creates a client to connect to the Barbican service.
:param context: the user context for authentication
:return: a Barbican Client object
:raises Forbidden: if the context is None
:raises KeyManagerError: if context is missing tenant or tenant is
None or error occurs while creating client
"""
# Confirm context is provided, if not raise forbidden
if not context:
msg = _("User is not authorized to use key manager.")
LOG.error(msg)
raise exception.Forbidden(msg)
if self._barbican_client and self._current_context == context:
return self._barbican_client
try:
auth = self._get_keystone_auth(context)
sess = session.Session(auth=auth,
verify=self.conf.barbican.verify_ssl)
self._barbican_endpoint = self._get_barbican_endpoint(auth, sess)
self._barbican_client = barbican_client_import.Client(
session=sess,
endpoint=self._barbican_endpoint)
self._current_context = context
# TODO(pbourke): more fine grained exception handling - we are eating
# tracebacks here
except Exception as e:
LOG.error("Error creating Barbican client: %s", e)
raise exception.KeyManagerError(reason=e)
self._base_url = self._create_base_url(auth,
sess,
self._barbican_endpoint)
return self._barbican_client
def _build_auth_headers(self):
if self._root_token_id:
return {'X-Vault-Token': self._root_token_id}
if self._approle_token_id:
return {'X-Vault-Token': self._approle_token_id}
if self._approle_role_id:
params = {
'role_id': self._approle_role_id
}
if self._approle_secret_id:
params['secret_id'] = self._approle_secret_id
approle_login_url = '{}v1/auth/approle/login'.format(
self._get_url()
)
token_issue_utc = timeutils.utcnow()
try:
resp = self._session.post(url=approle_login_url,
json=params,
verify=self._verify_server)
except requests.exceptions.Timeout as ex:
raise exception.KeyManagerError(str(ex))
except requests.exceptions.ConnectionError as ex:
raise exception.KeyManagerError(str(ex))
except Exception as ex:
raise exception.KeyManagerError(str(ex))
if resp.status_code in _EXCEPTIONS_BY_CODE:
raise exception.KeyManagerError(resp.reason)
if resp.status_code == requests.codes['forbidden']:
raise exception.Forbidden()
resp = resp.json()
self._cached_approle_token_id = resp['auth']['client_token']
self._approle_token_issue = token_issue_utc
self._approle_token_ttl = resp['auth']['lease_duration']
return {'X-Vault-Token': self._approle_token_id}
return {}
def create_key_pair(self,
context,
algorithm,
length,
expiration=None,
name=None):
"""Creates an asymmetric key pair."""
# Confirm context is provided, if not raise forbidden
if not context:
msg = _("User is not authorized to use key manager.")
raise exception.Forbidden(msg)
if algorithm.lower() != 'rsa':
raise NotImplementedError(
"VaultKeyManager only implements rsa keys")
priv_key = rsa.generate_private_key(public_exponent=65537,
key_size=length,
backend=default_backend())
private_key = pri_key.PrivateKey(
'RSA', length,
priv_key.private_bytes(Encoding.PEM, PrivateFormat.PKCS8,
NoEncryption()))
private_key_id = uuid.uuid4().hex
private_id = self._store_key_value(private_key_id, private_key)
# pub_key = priv_key.public_key()
public_key = pub_key.PublicKey(
'RSA', length,
priv_key.public_key().public_bytes(
Encoding.PEM, PublicFormat.SubjectPublicKeyInfo))
public_key_id = uuid.uuid4().hex
public_id = self._store_key_value(public_key_id, public_key)
return private_id, public_id
def get(self, context, key_id, metadata_only=False):
"""Retrieves the key identified by the specified id."""
# Confirm context is provided, if not raise forbidden
if not context:
msg = _("User is not authorized to use key manager.")
raise exception.Forbidden(msg)
if not key_id:
raise exception.KeyManagerError('key identifier not provided')
resp = self._do_http_request(self._session.get,
self._get_resource_url(key_id))
if resp.status_code == requests.codes['not_found']:
raise exception.ManagedObjectNotFoundError(uuid=key_id)
record = resp.json()['data']
if self._get_api_version() != '1':
record = record['data']
key = None if metadata_only else binascii.unhexlify(record['value'])
clazz = None
for type_clazz, type_name in self._secret_type_dict.items():
if type_name == record['type']:
clazz = type_clazz
if clazz is None:
raise exception.KeyManagerError("Unknown type : %r" %
record['type'])
if hasattr(clazz, 'algorithm') and hasattr(clazz, 'bit_length'):
return clazz(record['algorithm'], record['bit_length'], key,
record['name'], record['created'], key_id)
else:
return clazz(key, record['name'], record['created'], key_id)
