cas_provider_examples/simple/tests.py

   1 from io import StringIO
   2 from urllib.parse import urlparse, parse_qsl, parse_qs
   3 from urllib.request import install_opener
   4 from xml import etree
   5 from xml.etree import ElementTree
   6 import cas_provider
   7 from cas_provider.attribute_formatters import CAS
   8 from cas_provider.models import ServiceTicket
   9 from cas_provider.signals import cas_collect_custom_attributes
  10 from cas_provider.views import _cas2_sucess_response, INVALID_TICKET, _cas2_error_response, generate_proxy_granting_ticket
  11 from django.contrib.auth.models import User, UserManager
  12 from django.test import TestCase
  13 from django.conf import settings
  14 from django.urls import reverse
  15
  16
  17 class DummyOpener(object):
  18     url = None
  19
  20     @staticmethod
  21     def open(url, *args, **kwargs):
  22         DummyOpener.url = url
  23
  24
  25 class ViewsTest(TestCase):
  26
  27     fixtures = ['cas_users', ]
  28
  29
  30
  31     def setUp(self):
  32         self.service = 'http://example.com/'
  33
  34
  35     def test_successful_login_with_proxy(self):
  36         install_opener(DummyOpener) # Don't really open any URLs
  37         proxyTarget = "http://my.sweet.service"
  38
  39         response = self._login_user('root', '123')
  40         response = self._validate_cas2(response, True, proxyTarget )
  41
  42         # Test: I'm acting as the service that will call another service
  43         # Step 1: Get the proxy granting ticket
  44         responseXml = ElementTree.parse(StringIO(response.content.decode('utf-8')))
  45         auth_success = responseXml.find(CAS + 'authenticationSuccess')
  46         pgt = auth_success.find(CAS + "proxyGrantingTicket")
  47         user = auth_success.find(CAS + "user")
  48         self.assertEqual('root', user.text)
  49         self.assertIsNotNone(pgt.text)
  50         self.assertTrue(pgt.text.startswith('PGTIOU'))
  51
  52         pgtId = parse_qs(urlparse(DummyOpener.url).query)['pgtId']
  53
  54         #Step 2: Get the actual proxy ticket
  55         proxyTicketResponse = self.client.get(reverse('proxy'), {'targetService': proxyTarget, 'pgt': pgtId}, follow=False)
  56         proxyTicketResponseXml = ElementTree.parse(StringIO(proxyTicketResponse.content.decode('utf-8')))
  57         self.assertIsNotNone(proxyTicketResponseXml.find(CAS + "proxySuccess"))
  58         self.assertIsNotNone(proxyTicketResponseXml.find(CAS + "proxySuccess/" + CAS + "proxyTicket"))
  59         proxyTicket = proxyTicketResponseXml.find(CAS + "proxySuccess/" + CAS + "proxyTicket");
  60
  61         #Step 3: I have the proxy ticket I can talk to some other backend service as the currently logged in user!
  62         proxyValidateResponse = self.client.get(reverse('cas_proxy_validate'), {'ticket': proxyTicket.text, 'service': proxyTarget})
  63         proxyValidateResponseXml = ElementTree.parse(StringIO(proxyValidateResponse.content.decode('utf-8')))
  64
  65         auth_success_2 = proxyValidateResponseXml.find(CAS + 'authenticationSuccess')
  66         user_2 = auth_success.find(CAS + "user")
  67         proxies_1  = auth_success_2.find(CAS + "proxies")
  68         self.assertIsNone(proxies_1) # there are no proxies. I am issued by a Service Ticket
  69
  70         self.assertEqual(user.text, user_2.text)
  71
  72
  73     def test_successful_proxy_chaining(self):
  74         install_opener(DummyOpener) # Don't really open any URLs
  75         proxyTarget_1 = "http://my.sweet.service_1"
  76         proxyTarget_2 = "http://my.sweet.service_2"
  77
  78         response = self._login_user('root', '123')
  79         response = self._validate_cas2(response, True, proxyTarget_1 )
  80
  81         # Test: I'm acting as the service that will call another service
  82         # Step 1: Get the proxy granting ticket
  83         responseXml = ElementTree.parse(StringIO(response.content.decode('utf-8')))
  84         auth_success_1 = responseXml.find(CAS + 'authenticationSuccess')
  85         pgt_1 = auth_success_1.find(CAS + "proxyGrantingTicket")
  86         user_1 = auth_success_1.find(CAS + "user")
  87         self.assertEqual('root', user_1.text)
  88         self.assertIsNotNone(pgt_1.text)
  89         self.assertTrue(pgt_1.text.startswith('PGTIOU'))
  90
  91         pgtId_1 = parse_qs(urlparse(DummyOpener.url).query)['pgtId']
  92
  93         #Step 2: Get the actual proxy ticket
  94         proxyTicketResponse_1 = self.client.get(reverse('proxy'), {'targetService': proxyTarget_1, 'pgt': pgtId_1}, follow=False)
  95         proxyTicketResponseXml_1 = ElementTree.parse(StringIO(proxyTicketResponse_1.content.decode('utf-8')))
  96         self.assertIsNotNone(proxyTicketResponseXml_1.find(CAS + "proxySuccess"))
  97         self.assertIsNotNone(proxyTicketResponseXml_1.find(CAS + "proxySuccess/" + CAS + "proxyTicket"))
  98         proxyTicket_1 = proxyTicketResponseXml_1.find(CAS + "proxySuccess/" + CAS +"proxyTicket");
  99
 100         #Step 3: I'm backend service 1 - I have the proxy ticket - I want to talk to back service 2
 101         #
 102         proxyValidateResponse_1 = self.client.get(reverse('cas_proxy_validate'), {'ticket': proxyTicket_1.text, 'service': proxyTarget_1, 'pgtUrl': proxyTarget_2})
 103         proxyValidateResponseXml_1 = ElementTree.parse(StringIO(proxyValidateResponse_1.content.decode('utf-8')))
 104
 105         auth_success_2 = proxyValidateResponseXml_1.find(CAS + 'authenticationSuccess')
 106         user_2 = auth_success_2.find(CAS + "user")
 107
 108         proxies_1  = auth_success_2.find(CAS + "proxies")
 109         self.assertIsNone(proxies_1) # there are no proxies. I am issued by a Service Ticket
 110         self.assertIsNotNone(auth_success_2)
 111         self.assertEqual('root', user_2.text)
 112
 113         pgt_2 = auth_success_2.find(CAS + "proxyGrantingTicket")
 114         user = auth_success_2.find(CAS + "user")
 115         self.assertEqual('root', user.text)
 116         self.assertIsNotNone(pgt_2.text)
 117         self.assertTrue(pgt_2.text.startswith('PGTIOU'))
 118
 119         pgtId_2 = parse_qs(urlparse(DummyOpener.url).query)['pgtId']
 120
 121         #Step 4: Get the second proxy ticket
 122         proxyTicketResponse_2 = self.client.get(reverse('proxy'), {'targetService': proxyTarget_2, 'pgt': pgtId_2})
 123         proxyTicketResponseXml_2 = ElementTree.parse(StringIO(proxyTicketResponse_2.content.decode('utf-8')))
 124         self.assertIsNotNone(proxyTicketResponseXml_2.find(CAS + "proxySuccess"))
 125         self.assertIsNotNone(proxyTicketResponseXml_2.find(CAS + "proxySuccess/" + CAS + "proxyTicket"))
 126         proxyTicket_2 = proxyTicketResponseXml_2.find(CAS + "proxySuccess/" + CAS + "proxyTicket")
 127
 128         proxyValidateResponse_3 = self.client.get(reverse('cas_proxy_validate'), {'ticket': proxyTicket_2.text, 'service': proxyTarget_2, 'pgtUrl': ''})
 129         proxyValidateResponseXml_3 = ElementTree.parse(StringIO(proxyValidateResponse_3.content.decode('utf-8')))
 130
 131         auth_success_3 = proxyValidateResponseXml_3.find(CAS + 'authenticationSuccess')
 132         user_3 = auth_success_3.find(CAS + "user")
 133
 134         proxies_3  = auth_success_3.find(CAS + "proxies")
 135         self.assertIsNotNone(proxies_3) # there should be a proxy. I am issued by a Proxy Ticket
 136         proxy_3 = proxies_3.find(CAS + "proxy")
 137         self.assertEqual(proxyTarget_1, proxy_3.text )
 138
 139         self.assertIsNotNone(auth_success_2)
 140         self.assertEqual('root', user_3.text)
 141
 142
 143     def test_succeessful_login(self):
 144         response = self._login_user('root', '123')
 145         self._validate_cas1(response, True)
 146
 147         response = self.client.get(reverse('cas_login'), {'service': self.service}, follow=False)
 148         self.assertEqual(response.status_code, 302)
 149         self.assertTrue(response['location'].startswith('%s?ticket=' % self.service))
 150
 151         response = self.client.get(reverse('cas_login'), follow=False)
 152         self.assertEqual(response.status_code, 302)
 153         self.assertTrue(response['location'].startswith('/'))
 154
 155         response = self.client.get(response['location'], follow=False)
 156         self.assertIn(response.status_code, [302, 200])
 157
 158         response = self.client.get(reverse('cas_login'), {'service': self.service, 'warn': True}, follow=False)
 159         self.assertEqual(response.status_code, 200)
 160         self.assertTemplateUsed(response, 'cas/warn.html')
 161
 162
 163     def _cas_logout(self):
 164         response = self.client.get(reverse('cas_logout'), follow=False)
 165         self.assertEqual(response.status_code, 200)
 166
 167
 168     def test_logout(self):
 169         response = self._login_user('root', '123')
 170         self._validate_cas1(response, True)
 171
 172         self._cas_logout()
 173
 174         response = self.client.get(reverse('cas_login'), follow=False)
 175         self.assertEqual(response.status_code, 200)
 176         self.assertTrue(response.context['user'].is_anonymous)
 177
 178
 179     def test_broken_pwd(self):
 180         self._fail_login('root', '321')
 181
 182     def test_broken_username(self):
 183         self._fail_login('notroot', '123')
 184
 185     def test_nonactive_user_login(self):
 186         self._fail_login('nonactive', '123')
 187
 188     def test_cas2_success_validate(self):
 189         response = self._login_user('root', '123')
 190         response = self._validate_cas2(response, True)
 191         user = User.objects.get(username=self.username)
 192         self.assertEqual(response.content, _cas2_sucess_response(user).content)
 193
 194     def test_cas2_validate_twice(self):
 195         response = self._login_user('root', '123')
 196         response2 = self._validate_cas2(response, True)
 197         user = User.objects.get(username=self.username)
 198         self.assertEqual(response2.content, _cas2_sucess_response(user).content)
 199
 200         response2 = self._validate_cas2(response, True)
 201         self.assertEqual(response2.content, _cas2_error_response(INVALID_TICKET).content)
 202
 203     def test_cas2_validate_twice_with_pgt(self):
 204         proxyTarget = "http://my.sweet.service_1"
 205         response = self._login_user('root', '123')
 206         response2 = self._validate_cas2(response, True, proxyTarget)
 207         user = User.objects.get(username=self.username)
 208         self.assertEqual(response2.content, _cas2_sucess_response(user).content)
 209
 210         response2 = self._validate_cas2(response, True, proxyTarget)
 211         self.assertEqual(response2.content, _cas2_error_response(INVALID_TICKET).content)
 212
 213     def test_cas2_custom_attrs(self):
 214         cas_collect_custom_attributes.connect(cas_mapping)
 215         response = self._login_user('editor', '123')
 216         self.maxDiff=None
 217
 218         response = self._validate_cas2(response, True)
 219         self.assertEqual(response.content.decode('utf-8'),
 220                                            '''<cas:serviceResponse xmlns:cas="http://www.yale.edu/tp/cas">'''
 221                                            '''<cas:authenticationSuccess>'''
 222                                            '''<cas:user>editor</cas:user>'''
 223                                            '''<cas:attributes>'''
 224                                            '''<cas:attraStyle>Jasig</cas:attraStyle>'''
 225                                            '''<cas:email>editor@exapmle.com</cas:email>'''
 226                                            '''<cas:group>editor</cas:group>'''
 227                                            '''<cas:is_active>True</cas:is_active>'''
 228                                            '''<cas:is_staff>True</cas:is_staff>'''
 229                                            '''</cas:attributes>'''
 230                                            '''</cas:authenticationSuccess>'''
 231                                            '''</cas:serviceResponse>''')
 232
 233         self._cas_logout()
 234         response = self._login_user('editor', '123')
 235         settings.CAS_CUSTOM_ATTRIBUTES_FORMATER = 'cas_provider.attribute_formatters.ruby_cas'
 236         response = self._validate_cas2(response, True)
 237         self.assertEqual(response.content.decode('utf-8'),
 238                                            '''<cas:serviceResponse xmlns:cas="http://www.yale.edu/tp/cas">'''
 239                                            '''<cas:authenticationSuccess>'''
 240                                            '''<cas:user>editor</cas:user>'''
 241                                            '''<cas:attraStyle>RubyCAS</cas:attraStyle>'''
 242                                            '''<cas:email>editor@exapmle.com</cas:email>'''
 243                                            '''<cas:group>editor</cas:group>'''
 244                                            '''<cas:is_active>True</cas:is_active>'''
 245                                            '''<cas:is_staff>True</cas:is_staff>'''
 246                                            '''</cas:authenticationSuccess>'''
 247                                            '''</cas:serviceResponse>''')
 248
 249         self._cas_logout()
 250         response = self._login_user('editor', '123')
 251         settings.CAS_CUSTOM_ATTRIBUTES_FORMATER = 'cas_provider.attribute_formatters.name_value'
 252         response = self._validate_cas2(response, True)
 253         self.assertEqual(response.content.decode('utf-8'),
 254                                            '''<cas:serviceResponse xmlns:cas="http://www.yale.edu/tp/cas">'''
 255                                            '''<cas:authenticationSuccess>'''
 256                                            '''<cas:user>editor</cas:user>'''
 257                                            '''<cas:attribute name="attraStyle" value="Name-Value"/>'''
 258                                            '''<cas:attribute name="email" value="editor@exapmle.com"/>'''
 259                                            '''<cas:attribute name="group" value="editor"/>'''
 260                                            '''<cas:attribute name="is_active" value="True"/>'''
 261                                            '''<cas:attribute name="is_staff" value="True"/>'''
 262                                            '''</cas:authenticationSuccess>'''
 263                                            '''</cas:serviceResponse>''')
 264
 265
 266     def test_cas2_fail_validate(self):
 267         for user, pwd in (('root', '321'), ('notroot', '123'), ('nonactive', '123')):
 268             response = self._login_user(user, pwd)
 269             self._validate_cas2(response, False)
 270
 271
 272     def test_generate_proxy_granting_ticket(self):
 273         install_opener(DummyOpener) # Don't really open any URLs
 274         url = 'http://my.call.back/callhere'
 275
 276         user = User.objects.get(username = 'root')
 277         st = ServiceTicket.objects.create(user = user )
 278         pgt = generate_proxy_granting_ticket(url, st)
 279         self.assertIsNotNone(pgt)
 280
 281         calledUrl = DummyOpener.url
 282         parsedUrl = urlparse(calledUrl)
 283         params = parse_qs(parsedUrl.query)
 284         self.assertIsNotNone(params['pgtId'])
 285         self.assertIsNotNone(params['pgtIou'])
 286
 287
 288
 289     def _fail_login(self, username, password):
 290         response = self._login_user(username, password)
 291         self._validate_cas1(response, False)
 292
 293         response = self.client.get(reverse('cas_login'), {'service': self.service}, follow=False)
 294         self.assertEqual(response.status_code, 200)
 295         response = self.client.get(reverse('cas_login'), follow=False)
 296         self.assertEqual(response.status_code, 200)
 297
 298
 299
 300     def _login_user(self, username, password):
 301         self.username = username
 302         response = self.client.get(reverse('cas_login'), {'service': self.service})
 303         self.assertEqual(response.status_code, 200)
 304         self.assertTemplateUsed(response, 'cas/login.html')
 305         form = response.context['form']
 306         service = form['service'].value()
 307         return self.client.post(reverse('cas_login'), {
 308             'username': username,
 309             'password': password,
 310             'service': service
 311         }, follow=False)
 312
 313
 314     def _validate_cas1(self, response, is_correct=True):
 315         if is_correct:
 316             self.assertEqual(response.status_code, 302)
 317             self.assertTrue(response.has_header('location'))
 318             location = urlparse(response['location'])
 319             ticket = location.query.split('=')[1]
 320
 321             response = self.client.get(reverse('cas_validate'), {'ticket': ticket, 'service': self.service}, follow=False)
 322             self.assertEqual(response.status_code, 200)
 323             self.assertEqual(response.content.decode('utf-8'), 'yes\n%s\n' % self.username)
 324         else:
 325             self.assertEqual(response.status_code, 200)
 326             self.assertEqual(len(response.context['errors']), 1)
 327
 328             response = self.client.get(reverse('cas_validate'), {'ticket': 'ST-12312312312312312312312', 'service': self.service}, follow=False)
 329             self.assertEqual(response.status_code, 200)
 330             self.assertEqual(response.content.decode('utf-8'), 'no\n\n')
 331
 332
 333     def _validate_cas2(self, response, is_correct=True, pgtUrl = None):
 334         if is_correct:
 335             self.assertEqual(response.status_code, 302)
 336             self.assertTrue(response.has_header('location'))
 337             location = urlparse(response['location'])
 338             ticket = location.query.split('=')[1]
 339             if pgtUrl:
 340                 response = self.client.get(reverse('cas_service_validate'), {'ticket': ticket, 'service': self.service, 'pgtUrl': pgtUrl}, follow=False)
 341             else:
 342                 response = self.client.get(reverse('cas_service_validate'), {'ticket': ticket, 'service': self.service}, follow=False)
 343             self.assertEqual(response.status_code, 200)
 344         else:
 345             self.assertEqual(response.status_code, 200)
 346             self.assertEqual(len(response.context['errors']), 1)
 347
 348             response = self.client.get(reverse('cas_service_validate'), {'ticket': 'ST-12312312312312312312312', 'service': self.service}, follow=False)
 349             self.assertEqual(response.status_code, 200)
 350             self.assertEqual(response.content, _cas2_error_response(INVALID_TICKET).content)
 351         return response
 352
 353 class ModelsTestCase(TestCase):
 354
 355     fixtures = ['cas_users.json', ]
 356
 357     def setUp(self):
 358         self.user = User.objects.get(username='root')
 359
 360     def test_redirects(self):
 361         ticket = ServiceTicket.objects.create(service='http://example.com', user=self.user)
 362         self.assertEqual(ticket.get_redirect_url(), '%(service)s?ticket=%(ticket)s' % ticket.__dict__)
 363
 364
 365 def cas_mapping(sender, user, **kwargs):
 366     return {
 367         'is_staff': str(user.is_staff),
 368         'is_active': str(user.is_active),
 369         'email': user.email,
 370         'group': [g.name for g in user.groups.all()]
 371     }