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""" Tests for L{twisted.conch.manhole_tap}. """ try: import cryptography except ImportError: cryptography = None try: import pyasn1 except ImportError: pyasn1 = None if cryptography and pyasn1: from twisted.conch import manhole_tap, manhole_ssh from twisted.application.internet import StreamServerEndpointService from twisted.application.service import MultiService from twisted.cred import error from twisted.cred.credentials import UsernamePassword from twisted.conch import telnet from twisted.python import usage from twisted.trial.unittest import TestCase class MakeServiceTests(TestCase): """ Tests for L{manhole_tap.makeService}. """ if not cryptography: skip = "can't run without cryptography" if not pyasn1: skip = "Cannot run without PyASN1" usernamePassword = (b'iamuser', b'thisispassword') def setUp(self): """ Create a passwd-like file with a user. """ self.filename = self.mktemp() with open(self.filename, 'wb') as f: f.write(b':'.join(self.usernamePassword)) self.options = manhole_tap.Options() def test_requiresPort(self): """ L{manhole_tap.makeService} requires either 'telnetPort' or 'sshPort' to be given. """ with self.assertRaises(usage.UsageError) as e: manhole_tap.Options().parseOptions([]) self.assertEqual(e.exception.args[0], ("At least one of --telnetPort " "and --sshPort must be specified")) def test_telnetPort(self): """ L{manhole_tap.makeService} will make a telnet service on the port defined by C{--telnetPort}. It will not make a SSH service. """ self.options.parseOptions(["--telnetPort", "tcp:222"]) service = manhole_tap.makeService(self.options) self.assertIsInstance(service, MultiService) self.assertEqual(len(service.services), 1) self.assertIsInstance(service.services[0], StreamServerEndpointService) self.assertIsInstance(service.services[0].factory.protocol, manhole_tap.makeTelnetProtocol) self.assertEqual(service.services[0].endpoint._port, 222) def test_sshPort(self): """ L{manhole_tap.makeService} will make a SSH service on the port defined by C{--sshPort}. It will not make a telnet service. """ # Why the sshKeyDir and sshKeySize params? To prevent it stomping over # (or using!) the user's private key, we just make a super small one # which will never be used in a temp directory. self.options.parseOptions(["--sshKeyDir", self.mktemp(), "--sshKeySize", "512", "--sshPort", "tcp:223"]) service = manhole_tap.makeService(self.options) self.assertIsInstance(service, MultiService) self.assertEqual(len(service.services), 1) self.assertIsInstance(service.services[0], StreamServerEndpointService) self.assertIsInstance(service.services[0].factory, manhole_ssh.ConchFactory) self.assertEqual(service.services[0].endpoint._port, 223) def test_passwd(self): """ The C{--passwd} command-line option will load a passwd-like file. """ self.options.parseOptions(['--telnetPort', 'tcp:22', '--passwd', self.filename]) service = manhole_tap.makeService(self.options) portal = service.services[0].factory.protocol.portal self.assertEqual(len(portal.checkers.keys()), 2) # Ensure it's the passwd file we wanted by trying to authenticate self.assertTrue(self.successResultOf( portal.login(UsernamePassword(*self.usernamePassword), None, telnet.ITelnetProtocol))) self.assertIsInstance(self.failureResultOf( portal.login(UsernamePassword(b"wrong", b"user"), None, telnet.ITelnetProtocol)).value, error.UnauthorizedLogin)