cas_provider/tests.py

   1 import StringIO
   2 import urllib2
   3 from xml import etree
   4 from xml.etree import ElementTree
   5 from cas_provider.attribute_formatters import CAS, NSMAP
   6 from cas_provider.models import ServiceTicket
   7 from cas_provider.views import _cas2_sucess_response, INVALID_TICKET, _cas2_error_response
   8 from django.contrib.auth.models import User
   9 from django.core.urlresolvers import reverse
  10 from django.test import TestCase
  11 from urlparse import urlparse
  12 from django.conf import settings
  13 import cas_provider
  14
  15 def dummy_urlopen(url):
  16     pass
  17
  18
  19 class ViewsTest(TestCase):
  20
  21     fixtures = ['cas_users', ]
  22
  23     def setUp(self):
  24         self.service = 'http://example.com/'
  25
  26
  27     def test_successful_login_with_proxy(self):
  28         urllib2.urlopen = dummy_urlopen # monkey patching urllib2.urlopen so that the testcase doesnt really opens a url
  29         proxyTarget = "http://my.sweet.service"
  30
  31         response = self._login_user('root', '123')
  32         response = self._validate_cas2(response, True, proxyTarget )
  33
  34         # Test: I'm acting as the service that will call another service
  35         # Step 1: Get the proxy granting ticket
  36         responseXml = ElementTree.parse(StringIO.StringIO(response.content))
  37         auth_success = responseXml.find(CAS + 'authenticationSuccess', namespaces=NSMAP)
  38         pgt = auth_success.find(CAS + "proxyGrantingTicket", namespaces=NSMAP)
  39         user = auth_success.find(CAS + "user", namespaces=NSMAP)
  40         self.assertEqual('root', user.text)
  41         self.assertIsNotNone(pgt.text)
  42         self.assertTrue(pgt.text.startswith('PGTIOU'))
  43
  44         #Step 2: Get the actual proxy ticket
  45         proxyTicketResponse = self.client.get(reverse('proxy'), {'targetService': proxyTarget, 'pgt': pgt.text}, follow=False)
  46         proxyTicketResponseXml = ElementTree.parse(StringIO.StringIO(proxyTicketResponse.content))
  47         self.assertIsNotNone(proxyTicketResponseXml.find(CAS + "proxySuccess", namespaces=NSMAP))
  48         self.assertIsNotNone(proxyTicketResponseXml.find(CAS + "proxySuccess/cas:proxyTicket", namespaces=NSMAP))
  49         proxyTicket = proxyTicketResponseXml.find(CAS + "proxySuccess/cas:proxyTicket", namespaces=NSMAP);
  50
  51         #Step 3: I have the proxy ticket I can talk to some other backend service as the currently logged in user!
  52         proxyValidateResponse = self.client.get(reverse('cas_proxy_validate'), {'ticket': proxyTicket.text, 'service': proxyTarget, 'pgtUrl': None})
  53         proxyValidateResponseXml = ElementTree.parse(StringIO.StringIO(proxyValidateResponse.content))
  54
  55         auth_success_2 = proxyValidateResponseXml.find(CAS + 'authenticationSuccess', namespaces=NSMAP)
  56         user_2 = auth_success.find(CAS + "user", namespaces=NSMAP)
  57         proxies  = auth_success.find(CAS + "proxies")
  58         self.assertIsNotNone(auth_success_2)
  59         self.assertEqual(user.text, user_2.text)
  60         self.assertIsNotNone(proxies)
  61
  62
  63     def test_successful_proxy_chaining(self):
  64         self.assertFalse(True)
  65
  66     def test_successful_service_not_matching_in_request_to_proxy(self):
  67         self.assertFalse(True)
  68
  69
  70     def test_succeessful_login(self):
  71         response = self._login_user('root', '123')
  72         self._validate_cas1(response, True)
  73
  74         response = self.client.get(reverse('cas_login'), {'service': self.service}, follow=False)
  75         self.assertEqual(response.status_code, 302)
  76         self.assertTrue(response['location'].startswith('%s?ticket=' % self.service))
  77
  78         response = self.client.get(reverse('cas_login'), follow=False)
  79         self.assertEqual(response.status_code, 302)
  80         self.assertTrue(response['location'].startswith('http://testserver/'))
  81
  82         response = self.client.get(response['location'], follow=False)
  83         self.assertIn(response.status_code, [302, 200])
  84
  85         response = self.client.get(reverse('cas_login'), {'service': self.service, 'warn': True}, follow=False)
  86         self.assertEqual(response.status_code, 200)
  87         self.assertTemplateUsed(response, 'cas/warn.html')
  88
  89
  90     def _cas_logout(self):
  91         response = self.client.get(reverse('cas_logout'), follow=False)
  92         self.assertEqual(response.status_code, 200)
  93
  94
  95     def test_logout(self):
  96         response = self._login_user('root', '123')
  97         self._validate_cas1(response, True)
  98
  99         self._cas_logout()
 100
 101         response = self.client.get(reverse('cas_login'), follow=False)
 102         self.assertEqual(response.status_code, 200)
 103         self.assertEqual(response.context['user'].is_anonymous(), True)
 104
 105
 106     def test_broken_pwd(self):
 107         self._fail_login('root', '321')
 108
 109     def test_broken_username(self):
 110         self._fail_login('notroot', '123')
 111
 112     def test_nonactive_user_login(self):
 113         self._fail_login('nonactive', '123')
 114
 115     def test_cas2_success_validate(self):
 116         response = self._login_user('root', '123')
 117         response = self._validate_cas2(response, True)
 118         user = User.objects.get(username=self.username)
 119         self.assertEqual(response.content, _cas2_sucess_response(user).content)
 120
 121     def test_cas2_custom_attrs(self):
 122         settings.CAS_CUSTOM_ATTRIBUTES_CALLBACK = cas_mapping
 123         response = self._login_user('editor', '123')
 124
 125         response = self._validate_cas2(response, True)
 126         self.assertEqual(response.content, '''<cas:serviceResponse xmlns:cas="http://www.yale.edu/tp/cas">'''
 127                                            '''<cas:authenticationSuccess>'''
 128                                            '''<cas:user>editor</cas:user>'''
 129                                            '''<cas:attributes>'''
 130                                            '''<cas:attraStyle>Jasig</cas:attraStyle>'''
 131                                            '''<cas:group>editor</cas:group>'''
 132                                            '''<cas:is_staff>True</cas:is_staff>'''
 133                                            '''<cas:is_active>True</cas:is_active>'''
 134                                            '''<cas:email>editor@exapmle.com</cas:email>'''
 135                                            '''</cas:attributes>'''
 136                                            '''</cas:authenticationSuccess>'''
 137                                            '''</cas:serviceResponse>''')
 138
 139         self._cas_logout()
 140         response = self._login_user('editor', '123')
 141         settings.CAS_CUSTOM_ATTRIBUTES_FORMATER = 'cas_provider.attribute_formatters.ruby_cas'
 142         response = self._validate_cas2(response, True)
 143         self.assertEqual(response.content, '''<cas:serviceResponse xmlns:cas="http://www.yale.edu/tp/cas">'''
 144                                            '''<cas:authenticationSuccess>'''
 145                                            '''<cas:user>editor</cas:user>'''
 146                                            '''<cas:attraStyle>RubyCAS</cas:attraStyle>'''
 147                                            '''<cas:group>editor</cas:group>'''
 148                                            '''<cas:is_staff>True</cas:is_staff>'''
 149                                            '''<cas:is_active>True</cas:is_active>'''
 150                                            '''<cas:email>editor@exapmle.com</cas:email>'''
 151                                            '''</cas:authenticationSuccess>'''
 152                                            '''</cas:serviceResponse>''')
 153
 154         self._cas_logout()
 155         response = self._login_user('editor', '123')
 156         settings.CAS_CUSTOM_ATTRIBUTES_FORMATER = 'cas_provider.attribute_formatters.name_value'
 157         response = self._validate_cas2(response, True)
 158         self.assertEqual(response.content, '''<cas:serviceResponse xmlns:cas="http://www.yale.edu/tp/cas">'''
 159                                            '''<cas:authenticationSuccess>'''
 160                                            '''<cas:user>editor</cas:user>'''
 161                                            '''<cas:attribute name="attraStyle" value="Name-Value"/>'''
 162                                            '''<cas:attribute name="group" value="editor"/>'''
 163                                            '''<cas:attribute name="is_staff" value="True"/>'''
 164                                            '''<cas:attribute name="is_active" value="True"/>'''
 165                                            '''<cas:attribute name="email" value="editor@exapmle.com"/>'''
 166                                            '''</cas:authenticationSuccess>'''
 167                                            '''</cas:serviceResponse>''')
 168
 169
 170     def test_cas2_fail_validate(self):
 171         for user, pwd in (('root', '321'), ('notroot', '123'), ('nonactive', '123')):
 172             response = self._login_user(user, pwd)
 173             self._validate_cas2(response, False)
 174
 175
 176     def _fail_login(self, username, password):
 177         response = self._login_user(username, password)
 178         self._validate_cas1(response, False)
 179
 180         response = self.client.get(reverse('cas_login'), {'service': self.service}, follow=False)
 181         self.assertEqual(response.status_code, 200)
 182         response = self.client.get(reverse('cas_login'), follow=False)
 183         self.assertEqual(response.status_code, 200)
 184
 185
 186
 187     def _login_user(self, username, password):
 188         self.username = username
 189         response = self.client.get(reverse('cas_login'), {'service': self.service})
 190         self.assertEqual(response.status_code, 200)
 191         self.assertTemplateUsed(response, 'cas/login.html')
 192         form = response.context['form']
 193         service = form['service'].value()
 194         return self.client.post(reverse('cas_login'), {
 195             'username': username,
 196             'password': password,
 197             'lt': form['lt'].value(),
 198             'service': service
 199         }, follow=False)
 200
 201
 202     def _validate_cas1(self, response, is_correct=True):
 203         if is_correct:
 204             self.assertEqual(response.status_code, 302)
 205             self.assertTrue(response.has_header('location'))
 206             location = urlparse(response['location'])
 207             ticket = location.query.split('=')[1]
 208
 209             response = self.client.get(reverse('cas_validate'), {'ticket': ticket, 'service': self.service}, follow=False)
 210             self.assertEqual(response.status_code, 200)
 211             self.assertEqual(unicode(response.content), u'yes\n%s\n' % self.username)
 212         else:
 213             self.assertEqual(response.status_code, 200)
 214             self.assertEqual(len(response.context['form'].errors), 1)
 215
 216             response = self.client.get(reverse('cas_validate'), {'ticket': 'ST-12312312312312312312312', 'service': self.service}, follow=False)
 217             self.assertEqual(response.status_code, 200)
 218             self.assertEqual(response.content, u'no\n\n')
 219
 220
 221     def _validate_cas2(self, response, is_correct=True, pgtUrl = None):
 222         if is_correct:
 223             self.assertEqual(response.status_code, 302)
 224             self.assertTrue(response.has_header('location'))
 225             location = urlparse(response['location'])
 226             ticket = location.query.split('=')[1]
 227             if pgtUrl:
 228                 response = self.client.get(reverse('cas_service_validate'), {'ticket': ticket, 'service': self.service, 'pgtUrl': pgtUrl}, follow=False)
 229             else:
 230                 response = self.client.get(reverse('cas_service_validate'), {'ticket': ticket, 'service': self.service}, follow=False)
 231             self.assertEqual(response.status_code, 200)
 232         else:
 233             self.assertEqual(response.status_code, 200)
 234             self.assertEqual(len(response.context['form'].errors), 1)
 235
 236             response = self.client.get(reverse('cas_service_validate'), {'ticket': 'ST-12312312312312312312312', 'service': self.service}, follow=False)
 237             self.assertEqual(response.status_code, 200)
 238             self.assertEqual(response.content, _cas2_error_response(INVALID_TICKET).content)
 239         return response
 240
 241 class ModelsTestCase(TestCase):
 242
 243     fixtures = ['cas_users.json', ]
 244
 245     def setUp(self):
 246         self.user = User.objects.get(username='root')
 247
 248     def test_redirects(self):
 249         ticket = ServiceTicket.objects.create(service='http://example.com', user=self.user)
 250         self.assertEqual(ticket.get_redirect_url(), '%(service)s?ticket=%(ticket)s' % ticket.__dict__)
 251
 252
 253 def cas_mapping(user):
 254     return {
 255         'is_staff': unicode(user.is_staff),
 256         'is_active': unicode(user.is_active),
 257         'email': user.email,
 258         'group': [g.name for g in user.groups.all()]
 259     }