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import base64
import unittest
import distixapi
class GetCredentialsTests(unittest.TestCase):
def test_raises_error_if_no_Authentication_header(self):
request = DummyRequest()
with self.assertRaises(distixapi.AuthenticationError):
distixapi.get_credentials(request)
def test_raises_error_if_empty_Authentication_header(self):
request = DummyRequest()
request.add_header('Authorization', '')
with self.assertRaises(distixapi.AuthenticationError):
distixapi.get_credentials(request)
def test_raises_error_if_not_BasicAuth_header(self):
request = DummyRequest()
request.add_header('Authorization', 'Bearer token')
with self.assertRaises(distixapi.AuthenticationError):
distixapi.get_credentials(request)
def test_raises_error_if_no_BasicAuth_value(self):
request = DummyRequest()
request.add_header('Authorization', 'Basic')
with self.assertRaises(distixapi.AuthenticationError):
distixapi.get_credentials(request)
def test_returns_username_password(self):
username = 'fooser'
password = 'secret'
request = make_request(username, password)
u, p = distixapi.get_credentials(request)
self.assertEqual(username, u)
self.assertEqual(password, p)
class EncryptPasswordTests(unittest.TestCase):
def test_returns_value_not_containing_cleartext_password(self):
cleartext = 'secret'
salt = 'salt'
encrypted = distixapi.encrypt_password(salt, cleartext)
self.assertFalse(cleartext in encrypted)
def test_returns_different_values_with_different_salt(self):
cleartext = 'secret'
salt_1 = 'salt'
salt_2 = 'salt2'
encrypted_1 = distixapi.encrypt_password(salt_1, cleartext)
encrypted_2 = distixapi.encrypt_password(salt_2, cleartext)
self.assertNotEqual(encrypted_1, encrypted_2)
class PasswordCheckingTests(unittest.TestCase):
def test_raises_exception_if_user_not_known(self):
users = {
'users': [],
}
request = make_request('unknown', 'password')
with self.assertRaises(distixapi.AuthenticationError):
distixapi.get_scopes(users, request)
def test_raises_exception_if_password_is_wrong(self):
username = 'fooser'
salt = 'nacl'
password = 'passwooooord'
wrong_password = password + 'foo'
scopes = ['get', 'put']
users = {
'users': {
username: {
'salt': salt,
'password': distixapi.encrypt_password(salt, password),
'name': 'J. Random User',
'scopes': scopes,
}
},
}
request = make_request(username, wrong_password)
with self.assertRaises(distixapi.AuthenticationError):
distixapi.get_scopes(users, request)
class DummyRequest(object):
def __init__(self):
self._headers = {}
def add_header(self, header, value):
self._headers[header] = value
def get_header(self, header):
return self._headers.get(header)
def make_request(username, password):
value = base64.b64encode('{}:{}'.format(username, password))
request = DummyRequest()
request.add_header('Authorization', 'Basic {}'.format(value))
return request
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