240 lines
10 KiB
Python
240 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License version 3 for
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# more details.
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#
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# You should have received a copy of the GNU General Public License version 3
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# along with this program; if not, write to the Free Software Foundation, Inc., 51
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# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# (c) 2016 Valentin Samir
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"""Tests module for utils"""
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from django.test import TestCase, RequestFactory
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import six
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import warnings
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from cas_server import utils
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class CheckPasswordCase(TestCase):
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"""Tests for the utils function `utils.check_password`"""
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def setUp(self):
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"""Generate random bytes string that will be used ass passwords"""
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self.password1 = utils.gen_saml_id()
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self.password2 = utils.gen_saml_id()
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if not isinstance(self.password1, bytes): # pragma: no cover executed only in python3
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self.password1 = self.password1.encode("utf8")
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self.password2 = self.password2.encode("utf8")
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def test_setup(self):
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"""check that generated password are bytes"""
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self.assertIsInstance(self.password1, bytes)
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self.assertIsInstance(self.password2, bytes)
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def test_plain(self):
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"""test the plain auth method"""
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self.assertTrue(utils.check_password("plain", self.password1, self.password1, "utf8"))
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self.assertFalse(utils.check_password("plain", self.password1, self.password2, "utf8"))
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def test_plain_unicode(self):
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"""test the plain auth method with unicode input"""
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self.assertTrue(
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utils.check_password(
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"plain",
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self.password1.decode("utf8"),
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self.password1.decode("utf8"),
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"utf8"
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)
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)
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self.assertFalse(
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utils.check_password(
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"plain",
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self.password1.decode("utf8"),
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self.password2.decode("utf8"),
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"utf8"
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)
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)
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def test_crypt(self):
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"""test the crypt auth method"""
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salts = ["$6$UVVAQvrMyXMF3FF3", "aa"]
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hashed_password1 = []
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for salt in salts:
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if six.PY3:
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hashed_password1.append(
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utils.crypt.crypt(
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self.password1.decode("utf8"),
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salt
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).encode("utf8")
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)
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else:
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hashed_password1.append(utils.crypt.crypt(self.password1, salt))
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for hp1 in hashed_password1:
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self.assertTrue(utils.check_password("crypt", self.password1, hp1, "utf8"))
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self.assertFalse(utils.check_password("crypt", self.password2, hp1, "utf8"))
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with self.assertRaises(ValueError):
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utils.check_password("crypt", self.password1, b"$truc$s$dsdsd", "utf8")
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def test_ldap_password_valid(self):
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"""test the ldap auth method with all the schemes"""
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salt = b"UVVAQvrMyXMF3FF3"
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schemes_salt = [b"{SMD5}", b"{SSHA}", b"{SSHA256}", b"{SSHA384}", b"{SSHA512}"]
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schemes_nosalt = [b"{MD5}", b"{SHA}", b"{SHA256}", b"{SHA384}", b"{SHA512}"]
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hashed_password1 = []
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for scheme in schemes_salt:
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hashed_password1.append(
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utils.LdapHashUserPassword.hash(scheme, self.password1, salt, charset="utf8")
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)
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for scheme in schemes_nosalt:
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hashed_password1.append(
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utils.LdapHashUserPassword.hash(scheme, self.password1, charset="utf8")
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)
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hashed_password1.append(
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utils.LdapHashUserPassword.hash(
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b"{CRYPT}",
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self.password1,
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b"$6$UVVAQvrMyXMF3FF3",
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charset="utf8"
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)
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)
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for hp1 in hashed_password1:
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self.assertIsInstance(hp1, bytes)
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self.assertTrue(utils.check_password("ldap", self.password1, hp1, "utf8"))
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self.assertFalse(utils.check_password("ldap", self.password2, hp1, "utf8"))
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def test_ldap_password_fail(self):
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"""test the ldap auth method with malformed hash or bad schemes"""
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salt = b"UVVAQvrMyXMF3FF3"
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schemes_salt = [b"{SMD5}", b"{SSHA}", b"{SSHA256}", b"{SSHA384}", b"{SSHA512}"]
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schemes_nosalt = [b"{MD5}", b"{SHA}", b"{SHA256}", b"{SHA384}", b"{SHA512}"]
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# first try to hash with bad parameters
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with self.assertRaises(utils.LdapHashUserPassword.BadScheme):
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utils.LdapHashUserPassword.hash(b"TOTO", self.password1)
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for scheme in schemes_nosalt:
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with self.assertRaises(utils.LdapHashUserPassword.BadScheme):
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utils.LdapHashUserPassword.hash(scheme, self.password1, salt)
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for scheme in schemes_salt:
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with self.assertRaises(utils.LdapHashUserPassword.BadScheme):
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utils.LdapHashUserPassword.hash(scheme, self.password1)
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with self.assertRaises(utils.LdapHashUserPassword.BadSalt):
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utils.LdapHashUserPassword.hash(b'{CRYPT}', self.password1, b"$truc$toto")
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# then try to check hash with bad hashes
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with self.assertRaises(utils.LdapHashUserPassword.BadHash):
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utils.check_password("ldap", self.password1, b"TOTOssdsdsd", "utf8")
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for scheme in schemes_salt:
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with self.assertRaises(utils.LdapHashUserPassword.BadHash):
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utils.check_password("ldap", self.password1, scheme + b"dG90b3E8ZHNkcw==", "utf8")
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def test_hex(self):
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"""test all the hex_HASH method: the hashed password is a simple hash of the password"""
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hashes = ["md5", "sha1", "sha224", "sha256", "sha384", "sha512"]
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hashed_password1 = []
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for hash_scheme in hashes:
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hashed_password1.append(
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(
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"hex_%s" % hash_scheme,
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getattr(utils.hashlib, hash_scheme)(self.password1).hexdigest()
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)
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)
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for (method, hp1) in hashed_password1:
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self.assertTrue(utils.check_password(method, self.password1, hp1, "utf8"))
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self.assertFalse(utils.check_password(method, self.password2, hp1, "utf8"))
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def test_bad_method(self):
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"""try to check password with a bad method, should raise a ValueError"""
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with self.assertRaises(ValueError):
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utils.check_password("test", self.password1, b"$truc$s$dsdsd", "utf8")
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class UtilsTestCase(TestCase):
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"""tests for some little utils functions"""
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def test_import_attr(self):
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"""
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test the import_attr function. Feeded with a dotted path string, it should
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import the dotted module and return that last componend of the dotted path
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(function, class or variable)
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"""
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with self.assertRaises(ImportError):
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utils.import_attr('toto.titi.tutu')
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with self.assertRaises(AttributeError):
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utils.import_attr('cas_server.utils.toto')
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with self.assertRaises(ValueError):
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utils.import_attr('toto')
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self.assertEqual(
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utils.import_attr('cas_server.default_app_config'),
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'cas_server.apps.CasAppConfig'
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)
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self.assertEqual(utils.import_attr(utils), utils)
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def test_update_url(self):
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"""
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test the update_url function. Given an url with possible GET parameter and a dict
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the function build a url with GET parameters updated by the dictionnary
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"""
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url1 = utils.update_url(u"https://www.example.com?toto=1", {u"tata": u"2"})
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url2 = utils.update_url(b"https://www.example.com?toto=1", {b"tata": b"2"})
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self.assertEqual(url1, u"https://www.example.com?tata=2&toto=1")
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self.assertEqual(url2, u"https://www.example.com?tata=2&toto=1")
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url3 = utils.update_url(u"https://www.example.com?toto=1", {u"toto": u"2"})
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self.assertEqual(url3, u"https://www.example.com?toto=2")
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def test_crypt_salt_is_valid(self):
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"""test the function crypt_salt_is_valid who test if a crypt salt is valid"""
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self.assertFalse(utils.crypt_salt_is_valid("")) # len 0
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self.assertFalse(utils.crypt_salt_is_valid("a")) # len 1
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self.assertFalse(utils.crypt_salt_is_valid("$$")) # start with $ followed by $
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self.assertFalse(utils.crypt_salt_is_valid("$toto")) # start with $ but no secondary $
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self.assertFalse(utils.crypt_salt_is_valid("$toto$toto")) # algorithm toto not known
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def test_get_current_url(self):
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"""test the function get_current_url"""
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factory = RequestFactory()
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request = factory.get('/truc/muche?test=1')
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self.assertEqual(utils.get_current_url(request), 'http://testserver/truc/muche?test=1')
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self.assertEqual(
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utils.get_current_url(request, ignore_params={'test'}),
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'http://testserver/truc/muche'
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)
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def test_get_tuple(self):
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"""test the function get_tuple"""
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test_tuple = (1, 2, 3)
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for index, value in enumerate(test_tuple):
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self.assertEqual(utils.get_tuple(test_tuple, index), value)
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self.assertEqual(utils.get_tuple(test_tuple, 3), None)
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self.assertEqual(utils.get_tuple(test_tuple, 3, 'toto'), 'toto')
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self.assertEqual(utils.get_tuple(None, 3), None)
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def test_last_version(self):
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"""
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test the function last_version. An internet connection is needed, if you do not have
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one, this test will fail and you should ignore it.
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"""
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try:
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# first check if pypi is available
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utils.requests.get("https://pypi.python.org/simple/django-cas-server/")
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except utils.requests.exceptions.RequestException:
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warnings.warn(
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(
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"Pypi seems not available, perhaps you do not have internet access. "
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"Consequently, the test cas_server.tests.test_utils.UtilsTestCase.test_last_"
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"version is ignored"
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),
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RuntimeWarning
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)
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else:
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version = utils.last_version()
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self.assertIsInstance(version, six.text_type)
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self.assertEqual(len(version.split('.')), 3)
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# version is cached 24h so calling it a second time should return the save value
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self.assertEqual(version, utils.last_version())
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