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#
# Copyright (c) 2010-2012 Dominik Oepen
#
# This file is part of OpenPACE.
#
# OpenPACE is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option)
# any later version.
#
# OpenPACE is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# OpenPACE. If not, see <http://www.gnu.org/licenses/>.
#
"""
Object oriented wrapper for the CVC_CHAT structure and related methods from
OpenPACE
:Author: Dominik Oepen
:Date: 04.12.2011
:License: GPL
"""
import eac
class OpenPACEException(Exception):
def __init__(self, value):
self.value = eac.print_ossl_err() + value
def __str__(self):
return self.value
class CHAT(object):
def __init__(self, chat):
if (type(chat) == str):
self.asn1_string = chat
self.chat = eac.d2i_CVC_CHAT(chat)
elif (type(chat).__name__ == 'SwigPyObject'):
self.asn1_string = eac.i2d_CVC_CHAT(chat)
self.chat = eac.CVC_CHAT_dup(chat)
if (self.chat is None or self.asn1_string is None):
raise OpenPACEException("Failed to parse CHAT")
def __del__(self):
eac.CVC_CHAT_free(self.chat)
def __str__(self):
ret = eac.get_chat_repr(self.chat)
if ret is None:
raise OpenPACEException("Failed to parse CHAT")
return ret
def get_role(self):
ret = eac.get_chat_role(self.chat)
if ret is None:
raise OpenPACEException("Failed to retrieve terminal role from CHAT")
return ret
def get_terminal_type(self):
ret = eac.get_chat_terminal_type(self.chat)
if ret is None:
raise OpenPACEException("Failed to retrieve terminal type from CHAT")
return ret
def get_relative_authorizations(self):
ret = eac.get_chat_rel_auth(self.chat)
if ret is None:
raise OpenPACEException("Failed to retrieve relative authorization from CHAT")
return ret
class CVC(object):
def __init__(self, asn1_string):
self.asn1_string = asn1_string
self.cvc = eac.CVC_d2i_CVC_CERT(asn1_string)
if not self.cvc:
raise TypeError("Failed to parse certificate")
self.chat = CHAT(eac.cvc_get_chat(self.cvc))
def __del__(self):
eac.CVC_CERT_free(self.cvc)
def __str__(self):
ret = eac.get_cvc_repr(self.cvc)
if ret is None:
raise OpenPACEException("Failed to parse CV certificate")
return ret
def get_car(self):
ret = eac.CVC_get_car(self.cvc)
if ret is None:
raise OpenPACEException("Failed to extract CAR")
return ret
def get_chr(self):
ret = eac.CVC_get_chr(self.cvc)
if ret is None:
raise OpenPACEException("Failed to extract CHR")
return ret
def get_effective_date(self):
ret = eac.CVC_get_effective_date(self.cvc)
if ret is None:
raise OpenPACEException("Failed to extract effective date")
return ret
def get_expiration_date(self):
ret = eac.CVC_get_expiration_date(self.cvc)
if ret is None:
raise OpenPACEException("Failed to extract expiration date")
return ret
def get_profile_identifier(self):
profile_id = eac.CVC_get_profile_identifier(self.cvc)
return profile_id
class EAC_CTX(object):
def __init__(self):
self.ctx = eac.EAC_CTX_new()
if not self.ctx:
raise TypeError("Failed to create context")
def __del__(self):
eac.EAC_CTX_clear_free(self.ctx)
def __str__(self):
ret = eac.EAC_CTX_print_private(self.ctx)
if ret is None:
raise OpenPACEException("Failed to print EAC_CTX")
return ret
class PACE_SEC(object):
def __init__(self, secret, secret_type):
self.sec = eac.PACE_SEC_new(secret, secret_type)
if not self.sec:
raise TypeError("Failed to create context")
def __del__(self):
eac.PACE_SEC_clear_free(self.sec)
def __str__(self):
ret = eac.PACE_SEC_print_private(self.sec)
if ret is None:
raise OpenPACEException("Failed to print PACE_SEC")
return ret
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