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""" Creates tests from lists of both valid and invalid keys.
New test is generated for each key so that running unittests gives out meaningful errors.
"""
from .authorized_keys import items as list_of_authorized_keys
from .invalid_authorized_keys import items as list_of_invalid_authorized_keys
from .invalid_keys import keys as list_of_invalid_keys
from .invalid_options import options as list_of_invalid_options
from .valid_keys import keys as list_of_valid_keys
from .valid_keys_rfc4716 import keys as list_of_valid_keys_rfc4716
from .valid_options import options as list_of_valid_options
from sshpubkeys import AuthorizedKeysFile, InvalidOptionsError, SSHKey
import sys
import unittest
if sys.version_info.major == 2:
from io import BytesIO as StringIO
else:
from io import StringIO
DEFAULT_KEY = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEGODBKRjsFB/1v3pDRGpA6xR+QpOJg9vat0brlbUNDD"
class TestMisc(unittest.TestCase):
def test_none_to_constructor(self):
ssh = SSHKey(None)
self.assertEqual(None, ssh.keydata) # Python2.6 does not have assertIsNone
self.assertRaises(ValueError, ssh.parse)
class TestKeys(unittest.TestCase):
def check_key(self, pubkey, bits, fingerprint_md5, fingerprint_sha256, options, comment, **kwargs): # pylint:disable=too-many-arguments
""" Checks valid key """
ssh = SSHKey(pubkey, **kwargs)
ssh.parse()
self.assertEqual(ssh.bits, bits)
self.assertEqual(ssh.hash_md5(), fingerprint_md5)
self.assertEqual(ssh.options_raw, options)
self.assertEqual(ssh.comment, comment)
if fingerprint_sha256 is not None:
self.assertEqual(ssh.hash_sha256(), fingerprint_sha256)
def check_fail(self, pubkey, expected_error, **kwargs):
""" Checks that key check raises specified exception """
# Don't use with statement here - it does not work with Python 2.6 unittest module
ssh_key = SSHKey(pubkey, **kwargs)
self.assertRaises(expected_error, ssh_key.parse)
class TestOptions(unittest.TestCase):
def check_valid_option(self, option, parsed_option):
ssh = SSHKey()
parsed = ssh.parse_options(option)
self.assertEqual(parsed, parsed_option)
def check_invalid_option(self, option, expected_error):
ssh = SSHKey()
self.assertRaises(expected_error, ssh.parse_options, option)
def test_disallow_options(self):
ssh = SSHKey(disallow_options=True)
key = """command="dump /home",no-pty,no-port-forwarding """ + DEFAULT_KEY
self.assertRaises(InvalidOptionsError, ssh.parse, key)
class TestAuthorizedKeys(unittest.TestCase):
def check_valid_file(self, file_str, valid_keys_count):
file_obj = StringIO(file_str)
key_file = AuthorizedKeysFile(file_obj)
for item in key_file.keys:
self.assertIsInstance(item, SSHKey)
self.assertEqual(len(key_file.keys), valid_keys_count)
def check_invalid_file(self, file_str, expected_error):
file_obj = StringIO(file_str)
self.assertRaises(expected_error, AuthorizedKeysFile, file_obj)
def test_disallow_options(self):
file_obj = StringIO("""command="dump /home",no-pty,no-port-forwarding """ + DEFAULT_KEY)
self.assertRaises(InvalidOptionsError, AuthorizedKeysFile, file_obj, disallow_options=True)
file_obj.seek(0)
key_file = AuthorizedKeysFile(file_obj)
self.assertEqual(len(key_file.keys), 1)
def loop_options(options):
""" Loop over list of options and dynamically create tests """
def ch(option, parsed_option):
return lambda self: self.check_valid_option(option, parsed_option)
for i, items in enumerate(options):
prefix_tmp = "%s_%s" % (items[0], i)
setattr(TestOptions, "test_%s" % prefix_tmp, ch(items[1], items[2]))
def loop_invalid_options(options):
def ch(option, expected_error):
return lambda self: self.check_invalid_option(option, expected_error)
for i, items in enumerate(options):
prefix_tmp = "%s_%s" % (items[0], i)
setattr(TestOptions, "test_%s" % prefix_tmp, ch(items[1], items[2]))
def loop_valid(keyset, prefix):
""" Loop over list of valid keys and dynamically create tests """
def ch(pubkey, bits, fingerprint_md5, fingerprint_sha256, options, comment, **kwargs): # pylint:disable=too-many-arguments
return lambda self: self.check_key(pubkey, bits, fingerprint_md5, fingerprint_sha256, options, comment, **kwargs)
for items in keyset:
modes = items.pop()
prefix_tmp = "%s_%s" % (prefix, items.pop())
for mode in modes:
if mode == "strict":
kwargs = {"strict": True}
else:
kwargs = {"strict": False}
if len(items) == 4:
pubkey, bits, fingerprint_md5, fingerprint_sha256 = items
options = comment = None
else:
pubkey, bits, fingerprint_md5, fingerprint_sha256, options, comment = items
setattr(
TestKeys, "test_%s_mode_%s" % (prefix_tmp, mode),
ch(pubkey, bits, fingerprint_md5, fingerprint_sha256, options, comment, **kwargs)
)
def loop_invalid(keyset, prefix):
""" Loop over list of invalid keys and dynamically create tests """
def ch(pubkey, expected_error, **kwargs):
return lambda self: self.check_fail(pubkey, expected_error, **kwargs)
for items in keyset:
modes = items.pop()
prefix_tmp = "%s_%s" % (prefix, items.pop())
for mode in modes:
if mode == "strict":
kwargs = {"strict": True}
else:
kwargs = {"strict": False}
pubkey, expected_error = items
setattr(TestKeys, "test_%s_mode_%s" % (prefix_tmp, mode), ch(pubkey, expected_error, **kwargs))
def loop_authorized_keys(keyset):
def ch(file_str, valid_keys_count):
return lambda self: self.check_valid_file(file_str, valid_keys_count)
for i, items in enumerate(keyset):
prefix_tmp = "%s_%s" % (items[0], i)
setattr(TestAuthorizedKeys, "test_%s" % prefix_tmp, ch(items[1], items[2]))
def loop_invalid_authorized_keys(keyset):
def ch(file_str, expected_error, **kwargs):
return lambda self: self.check_invalid_file(file_str, expected_error, **kwargs)
for i, items in enumerate(keyset):
prefix_tmp = "%s_%s" % (items[0], i)
setattr(TestAuthorizedKeys, "test_invalid_%s" % prefix_tmp, ch(items[1], items[2]))
loop_valid(list_of_valid_keys, "valid_key")
loop_valid(list_of_valid_keys_rfc4716, "valid_key_rfc4716")
loop_invalid(list_of_invalid_keys, "invalid_key")
loop_options(list_of_valid_options)
loop_invalid_options(list_of_invalid_options)
loop_authorized_keys(list_of_authorized_keys)
loop_invalid_authorized_keys(list_of_invalid_authorized_keys)
if __name__ == '__main__':
unittest.main()
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