deb-python-pykmip/kmip/core/objects.py

1330 lines
44 KiB
Python

# Copyright (c) 2014 The Johns Hopkins University/Applied Physics Laboratory
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from six.moves import xrange
from kmip.core import attributes
from kmip.core.attributes import CryptographicParameters
from kmip.core.factories.attribute_values import AttributeValueFactory
from kmip.core import enums
from kmip.core.enums import AttributeType
from kmip.core.enums import Tags
from kmip.core.enums import Types
from kmip.core.enums import CredentialType
from kmip.core.enums import RevocationReasonCode as RevocationReasonCodeEnum
from kmip.core.errors import ErrorStrings
from kmip.core.misc import KeyFormatType
from kmip.core.primitives import Struct
from kmip.core.primitives import TextString
from kmip.core.primitives import ByteString
from kmip.core.primitives import Integer
from kmip.core.primitives import Enumeration
from kmip.core.utils import BytearrayStream
# 2.1
# 2.1.1
class Attribute(Struct):
class AttributeName(TextString):
def __init__(self, value=None):
super(Attribute.AttributeName, self).__init__(
value, Tags.ATTRIBUTE_NAME)
def __eq__(self, other):
if isinstance(other, Attribute.AttributeName):
if self.value != other.value:
return False
else:
return True
else:
NotImplemented
def __ne__(self, other):
if isinstance(other, Attribute.AttributeName):
return not (self == other)
else:
return NotImplemented
class AttributeIndex(Integer):
def __init__(self, value=None):
super(Attribute.AttributeIndex, self).__init__(
value, Tags.ATTRIBUTE_INDEX)
def __init__(self,
attribute_name=None,
attribute_index=None,
attribute_value=None):
super(Attribute, self).__init__(tag=Tags.ATTRIBUTE)
self.value_factory = AttributeValueFactory()
self.attribute_name = attribute_name
self.attribute_index = attribute_index
self.attribute_value = attribute_value
if attribute_value is not None:
attribute_value.tag = Tags.ATTRIBUTE_VALUE
def read(self, istream):
super(Attribute, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
# Read the name of the attribute
self.attribute_name = Attribute.AttributeName()
self.attribute_name.read(tstream)
# Read the attribute index if it is next
if self.is_tag_next(Tags.ATTRIBUTE_INDEX, tstream):
self.attribute_index = Attribute.AttributeIndex()
self.attribute_index.read(tstream)
# Lookup the attribute class that belongs to the attribute name
name = self.attribute_name.value
enum_name = name.replace('.', '_').replace(' ', '_').upper()
enum_type = None
try:
enum_type = AttributeType[enum_name]
except KeyError:
# Likely custom attribute, pass raw name string as attribute type
enum_type = name
value = self.value_factory.create_attribute_value(enum_type, None)
self.attribute_value = value
self.attribute_value.tag = Tags.ATTRIBUTE_VALUE
self.attribute_value.read(tstream)
self.is_oversized(tstream)
def write(self, ostream):
tstream = BytearrayStream()
self.attribute_name.write(tstream)
if self.attribute_index is not None:
self.attribute_index.write(tstream)
self.attribute_value.write(tstream)
# Write the length and value of the attribute
self.length = tstream.length()
super(Attribute, self).write(ostream)
ostream.write(tstream.buffer)
def __repr__(self):
attribute_name = "attribute_name={0}".format(repr(self.attribute_name))
attribute_index = "attribute_index={0}".format(
repr(self.attribute_index)
)
attribute_value = "attribute_value={0}".format(
repr(self.attribute_value)
)
return "Attribute({0}, {1}, {2})".format(
attribute_name,
attribute_index,
attribute_value
)
def __str__(self):
return str({
'attribute_name': str(self.attribute_name),
'attribute_index': str(self.attribute_index),
'attribute_value': str(self.attribute_value)
})
def __eq__(self, other):
if isinstance(other, Attribute):
if self.attribute_name != other.attribute_name:
return False
elif self.attribute_index != other.attribute_index:
return False
elif self.attribute_value != other.attribute_value:
return False
else:
return True
else:
return NotImplemented
def __ne__(self, other):
if isinstance(other, Attribute):
return not self.__eq__(other)
else:
return NotImplemented
# 2.1.2
class Credential(Struct):
class CredentialType(Enumeration):
def __init__(self, value=None):
super(Credential.CredentialType, self).__init__(
CredentialType, value, Tags.CREDENTIAL_TYPE)
class UsernamePasswordCredential(Struct):
class Username(TextString):
def __init__(self, value=None):
super(Credential.UsernamePasswordCredential.Username,
self).__init__(
value, Tags.USERNAME)
class Password(TextString):
def __init__(self, value=None):
super(Credential.UsernamePasswordCredential.Password,
self).__init__(
value, Tags.PASSWORD)
def __init__(self, username=None, password=None):
super(Credential.UsernamePasswordCredential, self).__init__(
tag=Tags.CREDENTIAL_VALUE)
self.username = username
self.password = password
self.validate()
def read(self, istream):
super(Credential.UsernamePasswordCredential, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
# Read the username of the credential
self.username = self.Username()
self.username.read(tstream)
# Read the password if it is next
if self.is_tag_next(Tags.PASSWORD, tstream):
self.password = self.Password()
self.password.read(tstream)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
self.username.write(tstream)
if self.password is not None:
self.password.write(tstream)
# Write the length and value of the credential
self.length = tstream.length()
super(Credential.UsernamePasswordCredential, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
pass
class DeviceCredential(Struct):
class DeviceSerialNumber(TextString):
def __init__(self, value=None):
super(Credential.DeviceCredential.DeviceSerialNumber, self).\
__init__(value, Tags.DEVICE_SERIAL_NUMBER)
class Password(TextString):
def __init__(self, value=None):
super(Credential.DeviceCredential.Password, self).\
__init__(value, Tags.PASSWORD)
class DeviceIdentifier(TextString):
def __init__(self, value=None):
super(Credential.DeviceCredential.DeviceIdentifier, self).\
__init__(value, Tags.DEVICE_IDENTIFIER)
class NetworkIdentifier(TextString):
def __init__(self, value=None):
super(Credential.DeviceCredential.NetworkIdentifier, self).\
__init__(value, Tags.NETWORK_IDENTIFIER)
class MachineIdentifier(TextString):
def __init__(self, value=None):
super(Credential.DeviceCredential.MachineIdentifier, self).\
__init__(value, Tags.MACHINE_IDENTIFIER)
class MediaIdentifier(TextString):
def __init__(self, value=None):
super(Credential.DeviceCredential.MediaIdentifier, self).\
__init__(value, Tags.MEDIA_IDENTIFIER)
def __init__(self,
device_serial_number=None,
password=None,
device_identifier=None,
network_identifier=None,
machine_identifier=None,
media_identifier=None):
super(Credential.DeviceCredential, self).__init__(
tag=Tags.CREDENTIAL_VALUE)
self.device_serial_number = device_serial_number
self.password = password
self.device_identifier = device_identifier
self.network_identifier = network_identifier
self.machine_identifier = machine_identifier
self.media_identifier = media_identifier
def read(self, istream):
super(Credential.DeviceCredential, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
# Read the password if it is next
if self.is_tag_next(Tags.DEVICE_SERIAL_NUMBER, tstream):
self.device_serial_number = self.DeviceSerialNumber()
self.device_serial_number.read(tstream)
# Read the password if it is next
if self.is_tag_next(Tags.PASSWORD, tstream):
self.password = self.Password()
self.password.read(tstream)
# Read the password if it is next
if self.is_tag_next(Tags.DEVICE_IDENTIFIER, tstream):
self.device_identifier = self.DeviceIdentifier()
self.device_identifier.read(tstream)
# Read the password if it is next
if self.is_tag_next(Tags.NETWORK_IDENTIFIER, tstream):
self.network_identifier = self.NetworkIdentifier()
self.network_identifier.read(tstream)
# Read the password if it is next
if self.is_tag_next(Tags.MACHINE_IDENTIFIER, tstream):
self.machine_identifier = self.MachineIdentifier()
self.machine_identifier.read(tstream)
# Read the password if it is next
if self.is_tag_next(Tags.MEDIA_IDENTIFIER, tstream):
self.media_identifier = self.MediaIdentifier()
self.media_identifier.read(tstream)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
if self.device_serial_number is not None:
self.device_serial_number.write(tstream)
if self.password is not None:
self.password.write(tstream)
if self.device_identifier is not None:
self.device_identifier.write(tstream)
if self.network_identifier is not None:
self.network_identifier.write(tstream)
if self.machine_identifier is not None:
self.machine_identifier.write(tstream)
if self.media_identifier is not None:
self.media_identifier.write(tstream)
# Write the length and value of the credential
self.length = tstream.length()
super(Credential.DeviceCredential, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
pass
def __init__(self, credential_type=None, credential_value=None):
super(Credential, self).__init__(tag=Tags.CREDENTIAL)
self.credential_type = credential_type
self.credential_value = credential_value
def read(self, istream):
super(Credential, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
# Read the type of the credential
self.credential_type = self.CredentialType()
self.credential_type.read(tstream)
# Use the type to determine what credential value to read
if self.credential_type.value is CredentialType.USERNAME_AND_PASSWORD:
self.credential_value = self.UsernamePasswordCredential()
elif self.credential_type.value is CredentialType.DEVICE:
self.credential_value = self.DeviceCredential()
else:
# TODO (peter-hamilton) Use more descriptive error here
raise NotImplementedError()
self.credential_value.read(tstream)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
self.credential_type.write(tstream)
self.credential_value.write(tstream)
# Write the length and value of the credential
self.length = tstream.length()
super(Credential, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
pass
# 2.1.3
class KeyBlock(Struct):
class KeyCompressionType(Enumeration):
def __init__(self, value=None):
super(KeyBlock.KeyCompressionType, self).__init__(
enums.KeyCompressionType, value, Tags.KEY_COMPRESSION_TYPE)
def __init__(self,
key_format_type=None,
key_compression_type=None,
key_value=None,
cryptographic_algorithm=None,
cryptographic_length=None,
key_wrapping_data=None):
super(KeyBlock, self).__init__(Tags.KEY_BLOCK)
self.key_format_type = key_format_type
self.key_compression_type = key_compression_type
self.key_value = key_value
self.cryptographic_algorithm = cryptographic_algorithm
self.cryptographic_length = cryptographic_length
self.key_wrapping_data = key_wrapping_data
self.validate()
def read(self, istream):
super(KeyBlock, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
self.key_format_type = KeyFormatType()
self.key_format_type.read(tstream)
if self.is_tag_next(Tags.KEY_COMPRESSION_TYPE, tstream):
self.key_compression_type = KeyBlock.KeyCompressionType()
self.key_compression_type.read(tstream)
self.key_value = KeyValue()
self.key_value.read(tstream)
if self.is_tag_next(Tags.CRYPTOGRAPHIC_ALGORITHM, tstream):
self.cryptographic_algorithm = attributes.CryptographicAlgorithm()
self.cryptographic_algorithm.read(tstream)
if self.is_tag_next(Tags.CRYPTOGRAPHIC_LENGTH, tstream):
self.cryptographic_length = attributes.CryptographicLength()
self.cryptographic_length.read(tstream)
if self.is_tag_next(Tags.KEY_WRAPPING_DATA, tstream):
self.key_wrapping_data = KeyWrappingData()
self.key_wrapping_data.read(tstream)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
self.key_format_type.write(tstream)
if self.key_compression_type is not None:
self.key_compression_type.write(tstream)
self.key_value.write(tstream)
if self.cryptographic_algorithm is not None:
self.cryptographic_algorithm.write(tstream)
if self.cryptographic_length is not None:
self.cryptographic_length.write(tstream)
if self.key_wrapping_data is not None:
self.key_wrapping_data.write(tstream)
# Write the length and value of the credential
self.length = tstream.length()
super(KeyBlock, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
self.__validate()
def __validate(self):
if self.key_format_type is not None:
if type(self.key_format_type) is not KeyFormatType:
member = 'KeyBlock.key_format_type'
exp_type = KeyFormatType
rcv_type = type(self.key_format_type)
msg = ErrorStrings.BAD_EXP_RECV.format(member, 'type',
exp_type, rcv_type)
raise TypeError(msg)
# 2.1.4
class KeyMaterial(ByteString):
def __init__(self, value=None):
super(KeyMaterial, self).__init__(value, Tags.KEY_MATERIAL)
# TODO (peter-hamilton) Get rid of this and replace with a KeyMaterial factory.
class KeyMaterialStruct(Struct):
def __init__(self):
super(KeyMaterialStruct, self).__init__(Tags.KEY_MATERIAL)
self.data = BytearrayStream()
self.validate()
def read(self, istream):
super(KeyMaterialStruct, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
self.data = BytearrayStream(tstream.read())
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
tstream.write(self.data.buffer)
self.length = tstream.length()
super(KeyMaterialStruct, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
self.__validate()
def __validate(self):
# NOTE (peter-hamilton): Intentional pass, no way to validate data.
pass
class KeyValue(Struct):
def __init__(self,
key_material=None,
attributes=None):
super(KeyValue, self).__init__(Tags.KEY_VALUE)
if key_material is None:
self.key_material = KeyMaterial()
else:
self.key_material = key_material
if attributes is None:
self.attributes = list()
else:
self.attributes = attributes
self.validate()
def read(self, istream):
super(KeyValue, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
# TODO (peter-hamilton) Replace this with a KeyMaterial factory.
if self.is_type_next(Types.STRUCTURE, tstream):
self.key_material = KeyMaterialStruct()
self.key_material.read(tstream)
else:
self.key_material = KeyMaterial()
self.key_material.read(tstream)
while self.is_tag_next(Tags.ATTRIBUTE, tstream):
attribute = Attribute()
attribute.read(tstream)
self.attributes.append(attribute)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
self.key_material.write(tstream)
for attribute in self.attributes:
attribute.write(tstream)
self.length = tstream.length()
super(KeyValue, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
self.__validate()
def __validate(self):
# TODO (peter-hamilton) Replace with check against KeyMaterial factory.
if not isinstance(self.key_material, KeyMaterial):
msg = "invalid key material"
msg += "; expected {0}, received {1}".format(
KeyMaterial, self.key_material)
raise TypeError(msg)
if isinstance(self.attributes, list):
for i in xrange(len(self.attributes)):
attribute = self.attributes[i]
if not isinstance(attribute, Attribute):
msg = "invalid attribute ({0} in list)".format(i)
msg += "; expected {0}, received {1}".format(
Attribute, attribute)
raise TypeError(msg)
else:
msg = "invalid attributes list"
msg += "; expected {0}, received {1}".format(
list, self.attributes)
raise TypeError(msg)
# 2.1.5
class WrappingMethod(Enumeration):
def __init__(self, value=None):
super(WrappingMethod, self).__init__(
enums.WrappingMethod, value, Tags.WRAPPING_METHOD)
class EncodingOption(Enumeration):
def __init__(self, value=None):
super(EncodingOption, self).__init__(
enums.EncodingOption, value, Tags.ENCODING_OPTION)
class KeyInformation(Struct):
def __init__(self,
unique_identifier=None,
cryptographic_parameters=None,
tag=Tags.ENCRYPTION_KEY_INFORMATION):
super(KeyInformation, self).__init__(tag=tag)
self.unique_identifier = unique_identifier
self.cryptographic_parameters = cryptographic_parameters
self.validate()
def read(self, istream):
super(KeyInformation, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
self.unique_identifier = attributes.UniqueIdentifier()
self.unique_identifier.read(tstream)
if self.is_tag_next(Tags.CRYPTOGRAPHIC_PARAMETERS, tstream):
self.cryptographic_parameters = CryptographicParameters()
self.cryptographic_parameters.read(tstream)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
self.unique_identifier.write(tstream)
if self.cryptographic_parameters is not None:
self.cryptographic_parameters.write(tstream)
# Write the length and value of the template attribute
self.length = tstream.length()
super(KeyInformation, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
self.__validate()
def __validate(self):
# TODO (peter-hamilton) Finish implementation.
pass
class EncryptionKeyInformation(KeyInformation):
def __init__(self,
unique_identifier=None,
cryptographic_parameters=None,
tag=Tags.ENCRYPTION_KEY_INFORMATION):
super(EncryptionKeyInformation, self).__init__(
unique_identifier, cryptographic_parameters, tag)
def validate(self):
self.__validate()
def __validate(self):
# TODO (peter-hamilton) Finish implementation.
pass
class MACSignatureKeyInformation(KeyInformation):
def __init__(self,
unique_identifier=None,
cryptographic_parameters=None,
tag=Tags.MAC_SIGNATURE_KEY_INFORMATION):
super(MACSignatureKeyInformation, self).__init__(
unique_identifier, cryptographic_parameters, tag)
def validate(self):
self.__validate()
def __validate(self):
# TODO (peter-hamilton) Finish implementation.
pass
class KeyWrappingData(Struct):
class MACSignature(ByteString):
def __init__(self, value=None):
super(KeyWrappingData.MACSignature, self).__init__(
value, Tags.MAC_SIGNATURE)
class IVCounterNonce(ByteString):
def __init__(self, value=None):
super(KeyWrappingData.IVCounterNonce, self).__init__(
value, Tags.IV_COUNTER_NONCE)
def __init__(self,
wrapping_method=None,
encryption_key_information=None,
mac_signature_key_information=None,
mac_signature=None,
iv_counter_nonce=None,
encoding_option=None):
super(KeyWrappingData, self).__init__(Tags.KEY_WRAPPING_DATA)
self.wrapping_method = wrapping_method
self.encryption_key_information = encryption_key_information
self.mac_signature_key_information = mac_signature_key_information
self.mac_signature = mac_signature
self.iv_counter_nonce = iv_counter_nonce
self.encoding_option = encoding_option
self.validate()
def read(self, istream):
super(KeyWrappingData, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
self.wrapping_method = WrappingMethod()
self.wrapping_method.read(tstream)
if self.is_tag_next(Tags.ENCRYPTION_KEY_INFORMATION, tstream):
self.encryption_key_information = EncryptionKeyInformation()
self.encryption_key_information.read(tstream)
if self.is_tag_next(Tags.MAC_SIGNATURE_KEY_INFORMATION, tstream):
self.mac_signature_key_information = MACSignatureKeyInformation()
self.mac_signature_key_information.read(tstream)
if self.is_tag_next(Tags.MAC_SIGNATURE, tstream):
self.mac_signature = KeyWrappingData.MACSignature()
self.mac_signature.read(tstream)
if self.is_tag_next(Tags.IV_COUNTER_NONCE, tstream):
self.iv_counter_nonce = KeyWrappingData.IVCounterNonce()
self.iv_counter_nonce.read(tstream)
if self.is_tag_next(Tags.ENCODING_OPTION, tstream):
self.encoding_option = EncodingOption()
self.encoding_option.read(tstream)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
# Write the contents of the key wrapping data
self.wrapping_method.write(tstream)
if self.encryption_key_information is not None:
self.encryption_key_information.write(tstream)
if self.mac_signature_key_information is not None:
self.mac_signature_key_information.write(tstream)
if self.mac_signature is not None:
self.mac_signature.write(tstream)
if self.iv_counter_nonce is not None:
self.iv_counter_nonce.write(tstream)
if self.encoding_option is not None:
self.encoding_option.write(tstream)
# Write the length and value of the key wrapping data
self.length = tstream.length()
super(KeyWrappingData, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
self.__validate()
def __validate(self):
# TODO (peter-hamilton) Finish implementation
pass
# 2.1.6
class KeyWrappingSpecification(Struct):
class AttributeName(TextString):
def __init__(self, value=None):
super(KeyWrappingSpecification.AttributeName, self).__init__(
value, Tags.ATTRIBUTE_NAME)
def __init__(self,
wrapping_method=None,
encryption_key_information=None,
mac_signature_key_information=None,
attribute_name=None,
encoding_option=None):
super(KeyWrappingSpecification, self).__init__(
tag=Tags.KEY_WRAPPING_SPECIFICATION)
self.wrapping_method = wrapping_method
self.encryption_key_information = encryption_key_information
self.mac_signature_key_information = mac_signature_key_information
self.attribute_name = attribute_name
self.encoding_option = encoding_option
def read(self, istream):
super(KeyWrappingSpecification, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
self.wrapping_method = WrappingMethod()
self.wrapping_method.read(tstream)
if self.is_tag_next(Tags.ENCRYPTION_KEY_INFORMATION, tstream):
self.encryption_key_information = EncryptionKeyInformation()
self.encryption_key_information.read(tstream)
if self.is_tag_next(Tags.MAC_SIGNATURE_KEY_INFORMATION, tstream):
self.mac_signature_key_information = MACSignatureKeyInformation()
self.mac_signature_key_information.read(tstream)
if self.is_tag_next(Tags.ATTRIBUTE_NAME, tstream):
self.attribute_name = KeyWrappingSpecification.AttributeName()
self.attribute_name.read(tstream)
if self.is_tag_next(Tags.ENCODING_OPTION, tstream):
self.encoding_option = EncodingOption()
self.encoding_option.read(tstream)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
# Write the contents of the key wrapping data
self.wrapping_method.write(tstream)
if self.encryption_key_information is not None:
self.encryption_key_information.write(tstream)
if self.mac_signature_key_information is not None:
self.mac_signature_key_information.write(tstream)
if self.attribute_name is not None:
self.attribute_name.write(tstream)
if self.encoding_option is not None:
self.encoding_option.write(tstream)
# Write the length and value of the key wrapping data
self.length = tstream.length()
super(KeyWrappingSpecification, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
self.__validate()
def __validate(self):
# TODO (peter-hamilton) Finish implementation.
pass
# 2.1.8
class TemplateAttribute(Struct):
def __init__(self,
names=None,
attributes=None,
tag=Tags.TEMPLATE_ATTRIBUTE):
super(TemplateAttribute, self).__init__(tag)
if names is None:
self.names = list()
else:
self.names = names
if attributes is None:
self.attributes = list()
else:
self.attributes = attributes
self.validate()
def read(self, istream):
super(TemplateAttribute, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
self.names = list()
self.attributes = list()
# Read the names of the template attribute, 0 or more
while self.is_tag_next(Tags.NAME, tstream):
name = attributes.Name()
name.read(tstream)
self.names.append(name)
# Read the attributes of the template attribute, 0 or more
while self.is_tag_next(Tags.ATTRIBUTE, tstream):
attribute = Attribute()
attribute.read(tstream)
self.attributes.append(attribute)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
tstream = BytearrayStream()
# Write the names and attributes of the template attribute
for name in self.names:
name.write(tstream)
for attribute in self.attributes:
attribute.write(tstream)
# Write the length and value of the template attribute
self.length = tstream.length()
super(TemplateAttribute, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
self.__validate()
def __validate(self):
# TODO (peter-hamilton) Finish implementation.
pass
def __eq__(self, other):
if isinstance(other, TemplateAttribute):
if len(self.names) != len(other.names):
return False
if len(self.attributes) != len(other.attributes):
return False
for i in xrange(len(self.names)):
a = self.names[i]
b = other.names[i]
if a != b:
return False
for i in xrange(len(self.attributes)):
a = self.attributes[i]
b = other.attributes[i]
if a != b:
return False
return True
else:
return NotImplemented
class CommonTemplateAttribute(TemplateAttribute):
def __init__(self,
names=None,
attributes=None):
super(CommonTemplateAttribute, self).__init__(
names, attributes, Tags.COMMON_TEMPLATE_ATTRIBUTE)
class PrivateKeyTemplateAttribute(TemplateAttribute):
def __init__(self,
names=None,
attributes=None):
super(PrivateKeyTemplateAttribute, self).__init__(
names, attributes, Tags.PRIVATE_KEY_TEMPLATE_ATTRIBUTE)
class PublicKeyTemplateAttribute(TemplateAttribute):
def __init__(self,
names=None,
attributes=None):
super(PublicKeyTemplateAttribute, self).__init__(
names, attributes, Tags.PUBLIC_KEY_TEMPLATE_ATTRIBUTE)
# 2.1.9
class ExtensionName(TextString):
"""
The name of an extended Object.
A part of ExtensionInformation, specifically identifying an Object that is
a custom vendor addition to the KMIP specification. See Section 2.1.9 of
the KMIP 1.1 specification for more information.
Attributes:
value: The string data representing the extension name.
"""
def __init__(self, value=''):
"""
Construct an ExtensionName object.
Args:
value (str): The string data representing the extension name.
Optional, defaults to the empty string.
"""
super(ExtensionName, self).__init__(value, Tags.EXTENSION_NAME)
class ExtensionTag(Integer):
"""
The tag of an extended Object.
A part of ExtensionInformation. See Section 2.1.9 of the KMIP 1.1
specification for more information.
Attributes:
value: The tag number identifying the extended object.
"""
def __init__(self, value=0):
"""
Construct an ExtensionTag object.
Args:
value (int): A number representing the extension tag. Often
displayed in hex format. Optional, defaults to 0.
"""
super(ExtensionTag, self).__init__(value, Tags.EXTENSION_TAG)
class ExtensionType(Integer):
"""
The type of an extended Object.
A part of ExtensionInformation, specifically identifying the type of the
Object in the specification extension. See Section 2.1.9 of the KMIP 1.1
specification for more information.
Attributes:
value: The type enumeration for the extended object.
"""
def __init__(self, value=None):
"""
Construct an ExtensionType object.
Args:
value (Types): A number representing a Types enumeration value,
indicating the type of the extended Object. Optional, defaults
to None.
"""
super(ExtensionType, self).__init__(value, Tags.EXTENSION_TYPE)
class ExtensionInformation(Struct):
"""
A structure describing Objects defined in KMIP specification extensions.
It is used specifically for Objects with Item Tag values in the Extensions
range and appears in responses to Query requests for server extension
information. See Sections 2.1.9 and 4.25 of the KMIP 1.1 specification for
more information.
Attributes:
extension_name: The name of the extended Object.
extension_tag: The tag of the extended Object.
extension_type: The type of the extended Object.
"""
def __init__(self, extension_name=None, extension_tag=None,
extension_type=None):
"""
Construct an ExtensionInformation object.
Args:
extension_name (ExtensionName): The name of the extended Object.
extension_tag (ExtensionTag): The tag of the extended Object.
extension_type (ExtensionType): The type of the extended Object.
"""
super(ExtensionInformation, self).__init__(Tags.EXTENSION_INFORMATION)
if extension_name is None:
self.extension_name = ExtensionName()
else:
self.extension_name = extension_name
self.extension_tag = extension_tag
self.extension_type = extension_type
self.validate()
def read(self, istream):
"""
Read the data encoding the ExtensionInformation object and decode it
into its constituent parts.
Args:
istream (Stream): A data stream containing encoded object data,
supporting a read method; usually a BytearrayStream object.
"""
super(ExtensionInformation, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
self.extension_name.read(tstream)
if self.is_tag_next(Tags.EXTENSION_TAG, tstream):
self.extension_tag = ExtensionTag()
self.extension_tag.read(tstream)
if self.is_tag_next(Tags.EXTENSION_TYPE, tstream):
self.extension_type = ExtensionType()
self.extension_type.read(tstream)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
"""
Write the data encoding the ExtensionInformation object to a stream.
Args:
ostream (Stream): A data stream in which to encode object data,
supporting a write method; usually a BytearrayStream object.
"""
tstream = BytearrayStream()
self.extension_name.write(tstream)
if self.extension_tag is not None:
self.extension_tag.write(tstream)
if self.extension_type is not None:
self.extension_type.write(tstream)
self.length = tstream.length()
super(ExtensionInformation, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
"""
Error check the attributes of the ExtensionInformation object.
"""
self.__validate()
def __validate(self):
if not isinstance(self.extension_name, ExtensionName):
msg = "invalid extension name"
msg += "; expected {0}, received {1}".format(
ExtensionName, self.extension_name)
raise TypeError(msg)
if self.extension_tag is not None:
if not isinstance(self.extension_tag, ExtensionTag):
msg = "invalid extension tag"
msg += "; expected {0}, received {1}".format(
ExtensionTag, self.extension_tag)
raise TypeError(msg)
if self.extension_type is not None:
if not isinstance(self.extension_type, ExtensionType):
msg = "invalid extension type"
msg += "; expected {0}, received {1}".format(
ExtensionType, self.extension_type)
raise TypeError(msg)
def __eq__(self, other):
if isinstance(other, ExtensionInformation):
if self.extension_name != other.extension_name:
return False
elif self.extension_tag != other.extension_tag:
return False
elif self.extension_type != other.extension_type:
return False
else:
return True
else:
return NotImplemented
def __ne__(self, other):
if isinstance(other, ExtensionInformation):
return not (self == other)
else:
return NotImplemented
def __repr__(self):
name = "extension_name={0}".format(repr(self.extension_name))
tag = "extension_tag={0}".format(repr(self.extension_tag))
typ = "extension_type={0}".format(repr(self.extension_type))
return "ExtensionInformation({0}, {1}, {2})".format(name, tag, typ)
def __str__(self):
return repr(self)
@classmethod
def create(cls, extension_name=None, extension_tag=None,
extension_type=None):
"""
Construct an ExtensionInformation object from provided extension
values.
Args:
extension_name (str): The name of the extension. Optional,
defaults to None.
extension_tag (int): The tag number of the extension. Optional,
defaults to None.
extension_type (int): The type index of the extension. Optional,
defaults to None.
Returns:
ExtensionInformation: The newly created set of extension
information.
Example:
>>> x = ExtensionInformation.create('extension', 1, 1)
>>> x.extension_name.value
ExtensionName(value='extension')
>>> x.extension_tag.value
ExtensionTag(value=1)
>>> x.extension_type.value
ExtensionType(value=1)
"""
extension_name = ExtensionName(extension_name)
extension_tag = ExtensionTag(extension_tag)
extension_type = ExtensionType(extension_type)
return ExtensionInformation(
extension_name=extension_name,
extension_tag=extension_tag,
extension_type=extension_type)
# 2.1.10
class Data(ByteString):
def __init__(self, value=None):
super(Data, self).__init__(value, Tags.DATA)
# 2.1.13
class MACData(ByteString):
def __init__(self, value=None):
super(MACData, self).__init__(value, Tags.MAC_DATA)
# 3.31, 9.1.3.2.19
class RevocationReasonCode(Enumeration):
def __init__(self, value=RevocationReasonCodeEnum.UNSPECIFIED):
super(RevocationReasonCode, self).__init__(
RevocationReasonCodeEnum, value=value,
tag=Tags.REVOCATION_REASON_CODE)
# 3.31
class RevocationReason(Struct):
"""
A structure describing the reason for a revocation operation.
See Sections 2.1.9 and 4.25 of the KMIP 1.1 specification for
more information.
Attributes:
code: The revocation reason code enumeration
message: An optional revocation message
"""
def __init__(self, code=None, message=None):
"""
Construct a RevocationReason object.
Parameters:
code(RevocationReasonCode): revocation reason code
message(string): An optional revocation message
"""
super(RevocationReason, self).__init__(tag=Tags.REVOCATION_REASON)
if code is not None:
self.revocation_code = RevocationReasonCode(value=code)
else:
self.revocation_code = RevocationReasonCode()
if message is not None:
self.revocation_message = TextString(
value=message,
tag=Tags.REVOCATION_MESSAGE)
else:
self.revocation_message = None
self.validate()
def read(self, istream):
"""
Read the data encoding the RevocationReason object and decode it
into its constituent parts.
Args:
istream (Stream): A data stream containing encoded object data,
supporting a read method; usually a BytearrayStream object.
"""
super(RevocationReason, self).read(istream)
tstream = BytearrayStream(istream.read(self.length))
self.revocation_code = RevocationReasonCode()
self.revocation_code.read(tstream)
if self.is_tag_next(Tags.REVOCATION_MESSAGE, tstream):
self.revocation_message = TextString()
self.revocation_message.read(tstream)
self.is_oversized(tstream)
self.validate()
def write(self, ostream):
"""
Write the data encoding the RevocationReason object to a stream.
Args:
ostream (Stream): A data stream in which to encode object data,
supporting a write method; usually a BytearrayStream object.
"""
tstream = BytearrayStream()
self.revocation_code.write(tstream)
if self.revocation_message is not None:
self.revocation_message.write(tstream)
# Write the length and value
self.length = tstream.length()
super(RevocationReason, self).write(ostream)
ostream.write(tstream.buffer)
def validate(self):
"""
validate the RevocationReason object
"""
if not isinstance(self.revocation_code, RevocationReasonCode):
msg = "RevocationReaonCode expected"
raise TypeError(msg)
if self.revocation_message is not None:
if not isinstance(self.revocation_message, TextString):
msg = "TextString expect"
raise TypeError(msg)