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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import base64
import os
import pytest
from cryptography import x509
from cryptography.exceptions import UnsupportedAlgorithm
from cryptography.hazmat.primitives import hashes, serialization
from cryptography.x509 import ocsp
from .test_x509 import _load_cert
from ..utils import load_vectors_from_file
def _load_data(filename, loader):
return load_vectors_from_file(
filename=filename,
loader=lambda data: loader(data.read()),
mode="rb"
)
def _cert_and_issuer():
from cryptography.hazmat.backends.openssl.backend import backend
cert = _load_cert(
os.path.join("x509", "cryptography.io.pem"),
x509.load_pem_x509_certificate,
backend
)
issuer = _load_cert(
os.path.join("x509", "rapidssl_sha256_ca_g3.pem"),
x509.load_pem_x509_certificate,
backend
)
return cert, issuer
class TestOCSPRequest(object):
def test_bad_request(self):
with pytest.raises(ValueError):
ocsp.load_der_ocsp_request(b"invalid")
def test_load_request_one_item(self):
req = _load_data(
os.path.join("x509", "ocsp", "req-sha1.der"),
ocsp.load_der_ocsp_request,
)
assert len(req) == 1
assert req[0].issuer_name_hash == (b"8\xcaF\x8c\x07D\x8d\xf4\x81\x96"
b"\xc7mmLpQ\x9e`\xa7\xbd")
assert req[0].issuer_key_hash == (b"yu\xbb\x84:\xcb,\xdez\t\xbe1"
b"\x1bC\xbc\x1c*MSX")
assert isinstance(req[0].hash_algorithm, hashes.SHA1)
assert req[0].serial_number == int(
"98D9E5C0B4C373552DF77C5D0F1EB5128E4945F9", 16
)
def test_load_request_multiple_items(self):
req = _load_data(
os.path.join("x509", "ocsp", "req-multi-sha1.der"),
ocsp.load_der_ocsp_request,
)
assert len(req) == 2
assert req[0].issuer_name_hash == (b"8\xcaF\x8c\x07D\x8d\xf4\x81\x96"
b"\xc7mmLpQ\x9e`\xa7\xbd")
assert req[0].issuer_key_hash == (b"yu\xbb\x84:\xcb,\xdez\t\xbe1"
b"\x1bC\xbc\x1c*MSX")
assert isinstance(req[0].hash_algorithm, hashes.SHA1)
assert req[0].serial_number == int(
"98D9E5C0B4C373552DF77C5D0F1EB5128E4945F9", 16
)
assert req[1].issuer_name_hash == (b"8\xcaF\x8c\x07D\x8d\xf4\x81\x96"
b"\xc7mmLpQ\x9e`\xa7\xbd")
assert req[1].issuer_key_hash == (b"yu\xbb\x84:\xcb,\xdez\t\xbe1"
b"\x1bC\xbc\x1c*MSX")
assert isinstance(req[1].hash_algorithm, hashes.SHA1)
assert req[1].serial_number == int(
"98D9E5C0B4C373552DF77C5D0F1EB5128E4945F0", 16
)
def test_iter(self):
req = _load_data(
os.path.join("x509", "ocsp", "req-multi-sha1.der"),
ocsp.load_der_ocsp_request,
)
for request in req:
assert isinstance(request, ocsp.Request)
def test_indexing_ocsp_request(self):
req = _load_data(
os.path.join("x509", "ocsp", "req-multi-sha1.der"),
ocsp.load_der_ocsp_request,
)
assert req[1].serial_number == req[-1].serial_number
assert len(req[0:2]) == 2
assert req[1:2][0].serial_number == int(
"98D9E5C0B4C373552DF77C5D0F1EB5128E4945F0", 16
)
with pytest.raises(IndexError):
req[10]
def test_invalid_hash_algorithm(self):
req = _load_data(
os.path.join("x509", "ocsp", "req-invalid-hash-alg.der"),
ocsp.load_der_ocsp_request,
)
with pytest.raises(UnsupportedAlgorithm):
req[0].hash_algorithm
def test_serialize_request(self):
req_bytes = load_vectors_from_file(
filename=os.path.join("x509", "ocsp", "req-sha1.der"),
loader=lambda data: data.read(),
mode="rb"
)
req = ocsp.load_der_ocsp_request(req_bytes)
assert req.public_bytes(serialization.Encoding.DER) == req_bytes
def test_invalid_serialize_encoding(self):
req = _load_data(
os.path.join("x509", "ocsp", "req-sha1.der"),
ocsp.load_der_ocsp_request,
)
with pytest.raises(ValueError):
req.public_bytes("invalid")
with pytest.raises(ValueError):
req.public_bytes(serialization.Encoding.PEM)
class TestOCSPRequestBuilder(object):
def test_create_ocsp_request_no_req(self):
builder = ocsp.OCSPRequestBuilder()
with pytest.raises(ValueError):
builder.build()
def test_create_ocsp_request_invalid_alg(self):
cert, issuer = _cert_and_issuer()
builder = ocsp.OCSPRequestBuilder()
with pytest.raises(ValueError):
builder.add_request(cert, issuer, hashes.MD5())
def test_create_ocsp_request_invalid_cert(self):
cert, issuer = _cert_and_issuer()
builder = ocsp.OCSPRequestBuilder()
with pytest.raises(TypeError):
builder.add_request(b"notacert", issuer, hashes.SHA1())
with pytest.raises(TypeError):
builder.add_request(cert, b"notacert", hashes.SHA1())
def test_create_ocsp_request(self):
cert, issuer = _cert_and_issuer()
builder = ocsp.OCSPRequestBuilder()
builder = builder.add_request(cert, issuer, hashes.SHA1())
req = builder.build()
serialized = req.public_bytes(serialization.Encoding.DER)
assert serialized == base64.b64decode(
b"MEMwQTA/MD0wOzAJBgUrDgMCGgUABBRAC0Z68eay0wmDug1gfn5ZN0gkxAQUw5zz"
b"/NNGCDS7zkZ/oHxb8+IIy1kCAj8g"
)
def test_create_ocsp_request_two_reqs(self):
builder = ocsp.OCSPRequestBuilder()
cert, issuer = _cert_and_issuer()
builder = builder.add_request(cert, issuer, hashes.SHA1())
builder = builder.add_request(cert, issuer, hashes.SHA1())
req = builder.build()
serialized = req.public_bytes(serialization.Encoding.DER)
assert serialized == base64.b64decode(
b"MIGDMIGAMH4wPTA7MAkGBSsOAwIaBQAEFEALRnrx5rLTCYO6DWB+flk3SCTEBBTD"
b"nPP800YINLvORn+gfFvz4gjLWQICPyAwPTA7MAkGBSsOAwIaBQAEFEALRnrx5rLT"
b"CYO6DWB+flk3SCTEBBTDnPP800YINLvORn+gfFvz4gjLWQICPyA="
)
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