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""" Tests for L{twisted.words.protocols.jabber.client} """ from __future__ import absolute_import, division from hashlib import sha1 from twisted.internet import defer from twisted.python.compat import unicode from twisted.trial import unittest from twisted.words.protocols.jabber import client, error, jid, xmlstream from twisted.words.protocols.jabber.sasl import SASLInitiatingInitializer from twisted.words.xish import utility try: from twisted.internet import ssl except ImportError: ssl = None skipWhenNoSSL = "SSL not available" else: skipWhenNoSSL = None IQ_AUTH_GET = '/iq[@type="get"]/query[@xmlns="jabber:iq:auth"]' IQ_AUTH_SET = '/iq[@type="set"]/query[@xmlns="jabber:iq:auth"]' NS_BIND = 'urn:ietf:params:xml:ns:xmpp-bind' IQ_BIND_SET = '/iq[@type="set"]/bind[@xmlns="%s"]' % NS_BIND NS_SESSION = 'urn:ietf:params:xml:ns:xmpp-session' IQ_SESSION_SET = '/iq[@type="set"]/session[@xmlns="%s"]' % NS_SESSION class CheckVersionInitializerTests(unittest.TestCase): def setUp(self): a = xmlstream.Authenticator() xs = xmlstream.XmlStream(a) self.init = client.CheckVersionInitializer(xs) def testSupported(self): """ Test supported version number 1.0 """ self.init.xmlstream.version = (1, 0) self.init.initialize() def testNotSupported(self): """ Test unsupported version number 0.0, and check exception. """ self.init.xmlstream.version = (0, 0) exc = self.assertRaises(error.StreamError, self.init.initialize) self.assertEqual('unsupported-version', exc.condition) class InitiatingInitializerHarness(object): """ Testing harness for interacting with XML stream initializers. This sets up an L{utility.XmlPipe} to create a communication channel between the initializer and the stubbed receiving entity. It features a sink and source side that both act similarly to a real L{xmlstream.XmlStream}. The sink is augmented with an authenticator to which initializers can be added. The harness also provides some utility methods to work with event observers and deferreds. """ def setUp(self): self.output = [] self.pipe = utility.XmlPipe() self.xmlstream = self.pipe.sink self.authenticator = xmlstream.ConnectAuthenticator('example.org') self.xmlstream.authenticator = self.authenticator def waitFor(self, event, handler): """ Observe an output event, returning a deferred. The returned deferred will be fired when the given event has been observed on the source end of the L{XmlPipe} tied to the protocol under test. The handler is added as the first callback. @param event: The event to be observed. See L{utility.EventDispatcher.addOnetimeObserver}. @param handler: The handler to be called with the observed event object. @rtype: L{defer.Deferred}. """ d = defer.Deferred() d.addCallback(handler) self.pipe.source.addOnetimeObserver(event, d.callback) return d class IQAuthInitializerTests(InitiatingInitializerHarness, unittest.TestCase): """ Tests for L{client.IQAuthInitializer}. """ def setUp(self): super(IQAuthInitializerTests, self).setUp() self.init = client.IQAuthInitializer(self.xmlstream) self.authenticator.jid = jid.JID('user@example.com/resource') self.authenticator.password = u'secret' def testPlainText(self): """ Test plain-text authentication. Act as a server supporting plain-text authentication and expect the C{password} field to be filled with the password. Then act as if authentication succeeds. """ def onAuthGet(iq): """ Called when the initializer sent a query for authentication methods. The response informs the client that plain-text authentication is supported. """ # Create server response response = xmlstream.toResponse(iq, 'result') response.addElement(('jabber:iq:auth', 'query')) response.query.addElement('username') response.query.addElement('password') response.query.addElement('resource') # Set up an observer for the next request we expect. d = self.waitFor(IQ_AUTH_SET, onAuthSet) # Send server response self.pipe.source.send(response) return d def onAuthSet(iq): """ Called when the initializer sent the authentication request. The server checks the credentials and responds with an empty result signalling success. """ self.assertEqual('user', unicode(iq.query.username)) self.assertEqual('secret', unicode(iq.query.password)) self.assertEqual('resource', unicode(iq.query.resource)) # Send server response response = xmlstream.toResponse(iq, 'result') self.pipe.source.send(response) # Set up an observer for the request for authentication fields d1 = self.waitFor(IQ_AUTH_GET, onAuthGet) # Start the initializer d2 = self.init.initialize() return defer.gatherResults([d1, d2]) def testDigest(self): """ Test digest authentication. Act as a server supporting digest authentication and expect the C{digest} field to be filled with a sha1 digest of the concatenated stream session identifier and password. Then act as if authentication succeeds. """ def onAuthGet(iq): """ Called when the initializer sent a query for authentication methods. The response informs the client that digest authentication is supported. """ # Create server response response = xmlstream.toResponse(iq, 'result') response.addElement(('jabber:iq:auth', 'query')) response.query.addElement('username') response.query.addElement('digest') response.query.addElement('resource') # Set up an observer for the next request we expect. d = self.waitFor(IQ_AUTH_SET, onAuthSet) # Send server response self.pipe.source.send(response) return d def onAuthSet(iq): """ Called when the initializer sent the authentication request. The server checks the credentials and responds with an empty result signalling success. """ self.assertEqual('user', unicode(iq.query.username)) self.assertEqual(sha1(b'12345secret').hexdigest(), unicode(iq.query.digest)) self.assertEqual('resource', unicode(iq.query.resource)) # Send server response response = xmlstream.toResponse(iq, 'result') self.pipe.source.send(response) # Digest authentication relies on the stream session identifier. Set it. self.xmlstream.sid = u'12345' # Set up an observer for the request for authentication fields d1 = self.waitFor(IQ_AUTH_GET, onAuthGet) # Start the initializer d2 = self.init.initialize() return defer.gatherResults([d1, d2]) def testFailRequestFields(self): """ Test initializer failure of request for fields for authentication. """ def onAuthGet(iq): """ Called when the initializer sent a query for authentication methods. The server responds that the client is not authorized to authenticate. """ response = error.StanzaError('not-authorized').toResponse(iq) self.pipe.source.send(response) # Set up an observer for the request for authentication fields d1 = self.waitFor(IQ_AUTH_GET, onAuthGet) # Start the initializer d2 = self.init.initialize() # The initialized should fail with a stanza error. self.assertFailure(d2, error.StanzaError) return defer.gatherResults([d1, d2]) def testFailAuth(self): """ Test initializer failure to authenticate. """ def onAuthGet(iq): """ Called when the initializer sent a query for authentication methods. The response informs the client that plain-text authentication is supported. """ # Send server response response = xmlstream.toResponse(iq, 'result') response.addElement(('jabber:iq:auth', 'query')) response.query.addElement('username') response.query.addElement('password') response.query.addElement('resource') # Set up an observer for the next request we expect. d = self.waitFor(IQ_AUTH_SET, onAuthSet) # Send server response self.pipe.source.send(response) return d def onAuthSet(iq): """ Called when the initializer sent the authentication request. The server checks the credentials and responds with a not-authorized stanza error. """ response = error.StanzaError('not-authorized').toResponse(iq) self.pipe.source.send(response) # Set up an observer for the request for authentication fields d1 = self.waitFor(IQ_AUTH_GET, onAuthGet) # Start the initializer d2 = self.init.initialize() # The initializer should fail with a stanza error. self.assertFailure(d2, error.StanzaError) return defer.gatherResults([d1, d2]) class BindInitializerTests(InitiatingInitializerHarness, unittest.TestCase): """ Tests for L{client.BindInitializer}. """ def setUp(self): super(BindInitializerTests, self).setUp() self.init = client.BindInitializer(self.xmlstream) self.authenticator.jid = jid.JID('user@example.com/resource') def testBasic(self): """ Set up a stream, and act as if resource binding succeeds. """ def onBind(iq): response = xmlstream.toResponse(iq, 'result') response.addElement((NS_BIND, 'bind')) response.bind.addElement('jid', content=u'user@example.com/other resource') self.pipe.source.send(response) def cb(result): self.assertEqual(jid.JID('user@example.com/other resource'), self.authenticator.jid) d1 = self.waitFor(IQ_BIND_SET, onBind) d2 = self.init.start() d2.addCallback(cb) return defer.gatherResults([d1, d2]) def testFailure(self): """ Set up a stream, and act as if resource binding fails. """ def onBind(iq): response = error.StanzaError('conflict').toResponse(iq) self.pipe.source.send(response) d1 = self.waitFor(IQ_BIND_SET, onBind) d2 = self.init.start() self.assertFailure(d2, error.StanzaError) return defer.gatherResults([d1, d2]) class SessionInitializerTests(InitiatingInitializerHarness, unittest.TestCase): """ Tests for L{client.SessionInitializer}. """ def setUp(self): super(SessionInitializerTests, self).setUp() self.init = client.SessionInitializer(self.xmlstream) def testSuccess(self): """ Set up a stream, and act as if session establishment succeeds. """ def onSession(iq): response = xmlstream.toResponse(iq, 'result') self.pipe.source.send(response) d1 = self.waitFor(IQ_SESSION_SET, onSession) d2 = self.init.start() return defer.gatherResults([d1, d2]) def testFailure(self): """ Set up a stream, and act as if session establishment fails. """ def onSession(iq): response = error.StanzaError('forbidden').toResponse(iq) self.pipe.source.send(response) d1 = self.waitFor(IQ_SESSION_SET, onSession) d2 = self.init.start() self.assertFailure(d2, error.StanzaError) return defer.gatherResults([d1, d2]) class BasicAuthenticatorTests(unittest.TestCase): """ Test for both BasicAuthenticator and basicClientFactory. """ def test_basic(self): """ Authenticator and stream are properly constructed by the factory. The L{xmlstream.XmlStream} protocol created by the factory has the new L{client.BasicAuthenticator} instance in its C{authenticator} attribute. It is set up with C{jid} and C{password} as passed to the factory, C{otherHost} taken from the client JID. The stream futher has two initializers, for TLS and authentication, of which the first has its C{required} attribute set to C{True}. """ self.client_jid = jid.JID('user@example.com/resource') # Get an XmlStream instance. Note that it gets initialized with the # XMPPAuthenticator (that has its associateWithXmlStream called) that # is in turn initialized with the arguments to the factory. xs = client.basicClientFactory(self.client_jid, 'secret').buildProtocol(None) # test authenticator's instance variables self.assertEqual('example.com', xs.authenticator.otherHost) self.assertEqual(self.client_jid, xs.authenticator.jid) self.assertEqual('secret', xs.authenticator.password) # test list of initializers tls, auth = xs.initializers self.assertIsInstance(tls, xmlstream.TLSInitiatingInitializer) self.assertIsInstance(auth, client.IQAuthInitializer) self.assertFalse(tls.required) class XMPPAuthenticatorTests(unittest.TestCase): """ Test for both XMPPAuthenticator and XMPPClientFactory. """ def test_basic(self): """ Test basic operations. Setup an XMPPClientFactory, which sets up an XMPPAuthenticator, and let it produce a protocol instance. Then inspect the instance variables of the authenticator and XML stream objects. """ self.client_jid = jid.JID('user@example.com/resource') # Get an XmlStream instance. Note that it gets initialized with the # XMPPAuthenticator (that has its associateWithXmlStream called) that # is in turn initialized with the arguments to the factory. xs = client.XMPPClientFactory(self.client_jid, 'secret').buildProtocol(None) # test authenticator's instance variables self.assertEqual('example.com', xs.authenticator.otherHost) self.assertEqual(self.client_jid, xs.authenticator.jid) self.assertEqual('secret', xs.authenticator.password) # test list of initializers version, tls, sasl, bind, session = xs.initializers self.assertIsInstance(tls, xmlstream.TLSInitiatingInitializer) self.assertIsInstance(sasl, SASLInitiatingInitializer) self.assertIsInstance(bind, client.BindInitializer) self.assertIsInstance(session, client.SessionInitializer) self.assertTrue(tls.required) self.assertTrue(sasl.required) self.assertTrue(bind.required) self.assertFalse(session.required) def test_tlsConfiguration(self): """ A TLS configuration is passed to the TLS initializer. """ configs = [] def init(self, xs, required=True, configurationForTLS=None): configs.append(configurationForTLS) self.client_jid = jid.JID('user@example.com/resource') # Get an XmlStream instance. Note that it gets initialized with the # XMPPAuthenticator (that has its associateWithXmlStream called) that # is in turn initialized with the arguments to the factory. configurationForTLS = ssl.CertificateOptions() factory = client.XMPPClientFactory( self.client_jid, 'secret', configurationForTLS=configurationForTLS) self.patch(xmlstream.TLSInitiatingInitializer, "__init__", init) xs = factory.buildProtocol(None) # test list of initializers version, tls, sasl, bind, session = xs.initializers self.assertIsInstance(tls, xmlstream.TLSInitiatingInitializer) self.assertIs(configurationForTLS, configs[0]) test_tlsConfiguration.skip = skipWhenNoSSL