cas_provider_examples/simple/tests.py

   1 from __future__ import unicode_literals
   2 from io import StringIO
   3 from xml import etree
   4 from xml.etree import ElementTree
   5 import cas_provider
   6 from cas_provider.attribute_formatters import CAS
   7 from cas_provider.models import ServiceTicket
   8 from cas_provider.signals import cas_collect_custom_attributes
   9 from cas_provider.views import _cas2_sucess_response, INVALID_TICKET, _cas2_error_response, generate_proxy_granting_ticket
  10 from django.contrib.auth.models import User, UserManager
  11 from django.test import TestCase
  12 from django.conf import settings
  13 from django import VERSION
  14
  15
  16 try:
  17     from urllib.parse import urlparse, parse_qsl, parse_qs
  18     from urllib.request import install_opener
  19 except:
  20     from urlparse import urlparse, parse_qsl, parse_qs
  21     from urllib2 import install_opener
  22
  23
  24 if VERSION >= (1, 10):
  25     from django.urls import reverse
  26     user_is_anonymous = lambda user: user.is_anonymous
  27 else:
  28     from django.core.urlresolvers import reverse
  29     user_is_anonymous = lambda user: user.is_anonymous()
  30
  31
  32 class DummyOpener(object):
  33     url = None
  34
  35     @staticmethod
  36     def open(url, *args, **kwargs):
  37         DummyOpener.url = url
  38
  39
  40 class ViewsTest(TestCase):
  41
  42     fixtures = ['cas_users', ]
  43
  44
  45
  46     def setUp(self):
  47         self.service = 'http://example.com/'
  48
  49
  50     def test_successful_login_with_proxy(self):
  51         install_opener(DummyOpener) # Don't really open any URLs
  52         proxyTarget = "http://my.sweet.service"
  53
  54         response = self._login_user('root', '123')
  55         response = self._validate_cas2(response, True, proxyTarget )
  56
  57         # Test: I'm acting as the service that will call another service
  58         # Step 1: Get the proxy granting ticket
  59         responseXml = ElementTree.parse(StringIO(response.content.decode('utf-8')))
  60         auth_success = responseXml.find(CAS + 'authenticationSuccess')
  61         pgt = auth_success.find(CAS + "proxyGrantingTicket")
  62         user = auth_success.find(CAS + "user")
  63         self.assertEqual('root', user.text)
  64         self.assertIsNotNone(pgt.text)
  65         self.assertTrue(pgt.text.startswith('PGTIOU'))
  66
  67         pgtId = parse_qs(urlparse(DummyOpener.url).query)['pgtId']
  68
  69         #Step 2: Get the actual proxy ticket
  70         proxyTicketResponse = self.client.get(reverse('proxy'), {'targetService': proxyTarget, 'pgt': pgtId}, follow=False)
  71         proxyTicketResponseXml = ElementTree.parse(StringIO(proxyTicketResponse.content.decode('utf-8')))
  72         self.assertIsNotNone(proxyTicketResponseXml.find(CAS + "proxySuccess"))
  73         self.assertIsNotNone(proxyTicketResponseXml.find(CAS + "proxySuccess/" + CAS + "proxyTicket"))
  74         proxyTicket = proxyTicketResponseXml.find(CAS + "proxySuccess/" + CAS + "proxyTicket");
  75
  76         #Step 3: I have the proxy ticket I can talk to some other backend service as the currently logged in user!
  77         proxyValidateResponse = self.client.get(reverse('cas_proxy_validate'), {'ticket': proxyTicket.text, 'service': proxyTarget})
  78         proxyValidateResponseXml = ElementTree.parse(StringIO(proxyValidateResponse.content.decode('utf-8')))
  79
  80         auth_success_2 = proxyValidateResponseXml.find(CAS + 'authenticationSuccess')
  81         user_2 = auth_success.find(CAS + "user")
  82         proxies_1  = auth_success_2.find(CAS + "proxies")
  83         self.assertIsNone(proxies_1) # there are no proxies. I am issued by a Service Ticket
  84
  85         self.assertEqual(user.text, user_2.text)
  86
  87
  88     def test_successful_proxy_chaining(self):
  89         install_opener(DummyOpener) # Don't really open any URLs
  90         proxyTarget_1 = "http://my.sweet.service_1"
  91         proxyTarget_2 = "http://my.sweet.service_2"
  92
  93         response = self._login_user('root', '123')
  94         response = self._validate_cas2(response, True, proxyTarget_1 )
  95
  96         # Test: I'm acting as the service that will call another service
  97         # Step 1: Get the proxy granting ticket
  98         responseXml = ElementTree.parse(StringIO(response.content.decode('utf-8')))
  99         auth_success_1 = responseXml.find(CAS + 'authenticationSuccess')
 100         pgt_1 = auth_success_1.find(CAS + "proxyGrantingTicket")
 101         user_1 = auth_success_1.find(CAS + "user")
 102         self.assertEqual('root', user_1.text)
 103         self.assertIsNotNone(pgt_1.text)
 104         self.assertTrue(pgt_1.text.startswith('PGTIOU'))
 105
 106         pgtId_1 = parse_qs(urlparse(DummyOpener.url).query)['pgtId']
 107
 108         #Step 2: Get the actual proxy ticket
 109         proxyTicketResponse_1 = self.client.get(reverse('proxy'), {'targetService': proxyTarget_1, 'pgt': pgtId_1}, follow=False)
 110         proxyTicketResponseXml_1 = ElementTree.parse(StringIO(proxyTicketResponse_1.content.decode('utf-8')))
 111         self.assertIsNotNone(proxyTicketResponseXml_1.find(CAS + "proxySuccess"))
 112         self.assertIsNotNone(proxyTicketResponseXml_1.find(CAS + "proxySuccess/" + CAS + "proxyTicket"))
 113         proxyTicket_1 = proxyTicketResponseXml_1.find(CAS + "proxySuccess/" + CAS +"proxyTicket");
 114
 115         #Step 3: I'm backend service 1 - I have the proxy ticket - I want to talk to back service 2
 116         #
 117         proxyValidateResponse_1 = self.client.get(reverse('cas_proxy_validate'), {'ticket': proxyTicket_1.text, 'service': proxyTarget_1, 'pgtUrl': proxyTarget_2})
 118         proxyValidateResponseXml_1 = ElementTree.parse(StringIO(proxyValidateResponse_1.content.decode('utf-8')))
 119
 120         auth_success_2 = proxyValidateResponseXml_1.find(CAS + 'authenticationSuccess')
 121         user_2 = auth_success_2.find(CAS + "user")
 122
 123         proxies_1  = auth_success_2.find(CAS + "proxies")
 124         self.assertIsNone(proxies_1) # there are no proxies. I am issued by a Service Ticket
 125         self.assertIsNotNone(auth_success_2)
 126         self.assertEqual('root', user_2.text)
 127
 128         pgt_2 = auth_success_2.find(CAS + "proxyGrantingTicket")
 129         user = auth_success_2.find(CAS + "user")
 130         self.assertEqual('root', user.text)
 131         self.assertIsNotNone(pgt_2.text)
 132         self.assertTrue(pgt_2.text.startswith('PGTIOU'))
 133
 134         pgtId_2 = parse_qs(urlparse(DummyOpener.url).query)['pgtId']
 135
 136         #Step 4: Get the second proxy ticket
 137         proxyTicketResponse_2 = self.client.get(reverse('proxy'), {'targetService': proxyTarget_2, 'pgt': pgtId_2})
 138         proxyTicketResponseXml_2 = ElementTree.parse(StringIO(proxyTicketResponse_2.content.decode('utf-8')))
 139         self.assertIsNotNone(proxyTicketResponseXml_2.find(CAS + "proxySuccess"))
 140         self.assertIsNotNone(proxyTicketResponseXml_2.find(CAS + "proxySuccess/" + CAS + "proxyTicket"))
 141         proxyTicket_2 = proxyTicketResponseXml_2.find(CAS + "proxySuccess/" + CAS + "proxyTicket")
 142
 143         proxyValidateResponse_3 = self.client.get(reverse('cas_proxy_validate'), {'ticket': proxyTicket_2.text, 'service': proxyTarget_2, 'pgtUrl': None})
 144         proxyValidateResponseXml_3 = ElementTree.parse(StringIO(proxyValidateResponse_3.content.decode('utf-8')))
 145
 146         auth_success_3 = proxyValidateResponseXml_3.find(CAS + 'authenticationSuccess')
 147         user_3 = auth_success_3.find(CAS + "user")
 148
 149         proxies_3  = auth_success_3.find(CAS + "proxies")
 150         self.assertIsNotNone(proxies_3) # there should be a proxy. I am issued by a Proxy Ticket
 151         proxy_3 = proxies_3.find(CAS + "proxy")
 152         self.assertEqual(proxyTarget_1, proxy_3.text )
 153
 154         self.assertIsNotNone(auth_success_2)
 155         self.assertEqual('root', user_3.text)
 156
 157
 158
 159
 160     def test_succeessful_login(self):
 161         response = self._login_user('root', '123')
 162         self._validate_cas1(response, True)
 163
 164         response = self.client.get(reverse('cas_login'), {'service': self.service}, follow=False)
 165         self.assertEqual(response.status_code, 302)
 166         self.assertTrue(response['location'].startswith('%s?ticket=' % self.service))
 167
 168         response = self.client.get(reverse('cas_login'), follow=False)
 169         self.assertEqual(response.status_code, 302)
 170         self.assertTrue(response['location'].startswith('http://testserver/' if VERSION < (1, 9) else '/'))
 171
 172         response = self.client.get(response['location'], follow=False)
 173         self.assertIn(response.status_code, [302, 200])
 174
 175         response = self.client.get(reverse('cas_login'), {'service': self.service, 'warn': True}, follow=False)
 176         self.assertEqual(response.status_code, 200)
 177         self.assertTemplateUsed(response, 'cas/warn.html')
 178
 179
 180     def _cas_logout(self):
 181         response = self.client.get(reverse('cas_logout'), follow=False)
 182         self.assertEqual(response.status_code, 200)
 183
 184
 185     def test_logout(self):
 186         response = self._login_user('root', '123')
 187         self._validate_cas1(response, True)
 188
 189         self._cas_logout()
 190
 191         response = self.client.get(reverse('cas_login'), follow=False)
 192         self.assertEqual(response.status_code, 200)
 193         self.assertEqual(user_is_anonymous(response.context['user']), True)
 194
 195
 196     def test_broken_pwd(self):
 197         self._fail_login('root', '321')
 198
 199     def test_broken_username(self):
 200         self._fail_login('notroot', '123')
 201
 202     def test_nonactive_user_login(self):
 203         self._fail_login('nonactive', '123')
 204
 205     def test_cas2_success_validate(self):
 206         response = self._login_user('root', '123')
 207         response = self._validate_cas2(response, True)
 208         user = User.objects.get(username=self.username)
 209         self.assertEqual(response.content, _cas2_sucess_response(user).content)
 210
 211     def test_cas2_validate_twice(self):
 212         response = self._login_user('root', '123')
 213         response2 = self._validate_cas2(response, True)
 214         user = User.objects.get(username=self.username)
 215         self.assertEqual(response2.content, _cas2_sucess_response(user).content)
 216
 217         response2 = self._validate_cas2(response, True)
 218         self.assertEqual(response2.content, _cas2_error_response(INVALID_TICKET).content)
 219
 220     def test_cas2_validate_twice_with_pgt(self):
 221         proxyTarget = "http://my.sweet.service_1"
 222         response = self._login_user('root', '123')
 223         response2 = self._validate_cas2(response, True, proxyTarget)
 224         user = User.objects.get(username=self.username)
 225         self.assertEqual(response2.content, _cas2_sucess_response(user).content)
 226
 227         response2 = self._validate_cas2(response, True, proxyTarget)
 228         self.assertEqual(response2.content, _cas2_error_response(INVALID_TICKET).content)
 229
 230     def test_cas2_custom_attrs(self):
 231         cas_collect_custom_attributes.connect(cas_mapping)
 232         response = self._login_user('editor', '123')
 233         self.maxDiff=None
 234
 235         response = self._validate_cas2(response, True)
 236         self.assertEqual(response.content.decode('utf-8'),
 237                                            '''<cas:serviceResponse xmlns:cas="http://www.yale.edu/tp/cas">'''
 238                                            '''<cas:authenticationSuccess>'''
 239                                            '''<cas:user>editor</cas:user>'''
 240                                            '''<cas:attributes>'''
 241                                            '''<cas:attraStyle>Jasig</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:attributes>'''
 247                                            '''</cas:authenticationSuccess>'''
 248                                            '''</cas:serviceResponse>''')
 249
 250         self._cas_logout()
 251         response = self._login_user('editor', '123')
 252         settings.CAS_CUSTOM_ATTRIBUTES_FORMATER = 'cas_provider.attribute_formatters.ruby_cas'
 253         response = self._validate_cas2(response, True)
 254         self.assertEqual(response.content.decode('utf-8'),
 255                                            '''<cas:serviceResponse xmlns:cas="http://www.yale.edu/tp/cas">'''
 256                                            '''<cas:authenticationSuccess>'''
 257                                            '''<cas:user>editor</cas:user>'''
 258                                            '''<cas:attraStyle>RubyCAS</cas:attraStyle>'''
 259                                            '''<cas:email>editor@exapmle.com</cas:email>'''
 260                                            '''<cas:group>editor</cas:group>'''
 261                                            '''<cas:is_active>True</cas:is_active>'''
 262                                            '''<cas:is_staff>True</cas:is_staff>'''
 263                                            '''</cas:authenticationSuccess>'''
 264                                            '''</cas:serviceResponse>''')
 265
 266         self._cas_logout()
 267         response = self._login_user('editor', '123')
 268         settings.CAS_CUSTOM_ATTRIBUTES_FORMATER = 'cas_provider.attribute_formatters.name_value'
 269         response = self._validate_cas2(response, True)
 270         self.assertEqual(response.content.decode('utf-8'),
 271                                            '''<cas:serviceResponse xmlns:cas="http://www.yale.edu/tp/cas">'''
 272                                            '''<cas:authenticationSuccess>'''
 273                                            '''<cas:user>editor</cas:user>'''
 274                                            '''<cas:attribute name="attraStyle" value="Name-Value"/>'''
 275                                            '''<cas:attribute name="email" value="editor@exapmle.com"/>'''
 276                                            '''<cas:attribute name="group" value="editor"/>'''
 277                                            '''<cas:attribute name="is_active" value="True"/>'''
 278                                            '''<cas:attribute name="is_staff" value="True"/>'''
 279                                            '''</cas:authenticationSuccess>'''
 280                                            '''</cas:serviceResponse>''')
 281
 282
 283     def test_cas2_fail_validate(self):
 284         for user, pwd in (('root', '321'), ('notroot', '123'), ('nonactive', '123')):
 285             response = self._login_user(user, pwd)
 286             self._validate_cas2(response, False)
 287
 288
 289     def test_generate_proxy_granting_ticket(self):
 290         install_opener(DummyOpener) # Don't really open any URLs
 291         url = 'http://my.call.back/callhere'
 292
 293         user = User.objects.get(username = 'root')
 294         st = ServiceTicket.objects.create(user = user )
 295         pgt = generate_proxy_granting_ticket(url, st)
 296         self.assertIsNotNone(pgt)
 297
 298         calledUrl = DummyOpener.url
 299         parsedUrl = urlparse(calledUrl)
 300         params = parse_qs(parsedUrl.query)
 301         self.assertIsNotNone(params['pgtId'])
 302         self.assertIsNotNone(params['pgtIou'])
 303
 304
 305
 306     def _fail_login(self, username, password):
 307         response = self._login_user(username, password)
 308         self._validate_cas1(response, False)
 309
 310         response = self.client.get(reverse('cas_login'), {'service': self.service}, follow=False)
 311         self.assertEqual(response.status_code, 200)
 312         response = self.client.get(reverse('cas_login'), follow=False)
 313         self.assertEqual(response.status_code, 200)
 314
 315
 316
 317     def _login_user(self, username, password):
 318         self.username = username
 319         response = self.client.get(reverse('cas_login'), {'service': self.service})
 320         self.assertEqual(response.status_code, 200)
 321         self.assertTemplateUsed(response, 'cas/login.html')
 322         form = response.context['form']
 323         service = form['service'].value()
 324         return self.client.post(reverse('cas_login'), {
 325             'username': username,
 326             'password': password,
 327             'service': service
 328         }, follow=False)
 329
 330
 331     def _validate_cas1(self, response, is_correct=True):
 332         if is_correct:
 333             self.assertEqual(response.status_code, 302)
 334             self.assertTrue(response.has_header('location'))
 335             location = urlparse(response['location'])
 336             ticket = location.query.split('=')[1]
 337
 338             response = self.client.get(reverse('cas_validate'), {'ticket': ticket, 'service': self.service}, follow=False)
 339             self.assertEqual(response.status_code, 200)
 340             self.assertEqual(response.content.decode('utf-8'), 'yes\n%s\n' % self.username)
 341         else:
 342             self.assertEqual(response.status_code, 200)
 343             self.assertEqual(len(response.context['errors']), 1)
 344
 345             response = self.client.get(reverse('cas_validate'), {'ticket': 'ST-12312312312312312312312', 'service': self.service}, follow=False)
 346             self.assertEqual(response.status_code, 200)
 347             self.assertEqual(response.content.decode('utf-8'), 'no\n\n')
 348
 349
 350     def _validate_cas2(self, response, is_correct=True, pgtUrl = None):
 351         if is_correct:
 352             self.assertEqual(response.status_code, 302)
 353             self.assertTrue(response.has_header('location'))
 354             location = urlparse(response['location'])
 355             ticket = location.query.split('=')[1]
 356             if pgtUrl:
 357                 response = self.client.get(reverse('cas_service_validate'), {'ticket': ticket, 'service': self.service, 'pgtUrl': pgtUrl}, follow=False)
 358             else:
 359                 response = self.client.get(reverse('cas_service_validate'), {'ticket': ticket, 'service': self.service}, follow=False)
 360             self.assertEqual(response.status_code, 200)
 361         else:
 362             self.assertEqual(response.status_code, 200)
 363             self.assertEqual(len(response.context['errors']), 1)
 364
 365             response = self.client.get(reverse('cas_service_validate'), {'ticket': 'ST-12312312312312312312312', 'service': self.service}, follow=False)
 366             self.assertEqual(response.status_code, 200)
 367             self.assertEqual(response.content, _cas2_error_response(INVALID_TICKET).content)
 368         return response
 369
 370 class ModelsTestCase(TestCase):
 371
 372     fixtures = ['cas_users.json', ]
 373
 374     def setUp(self):
 375         self.user = User.objects.get(username='root')
 376
 377     def test_redirects(self):
 378         ticket = ServiceTicket.objects.create(service='http://example.com', user=self.user)
 379         self.assertEqual(ticket.get_redirect_url(), '%(service)s?ticket=%(ticket)s' % ticket.__dict__)
 380
 381
 382 def cas_mapping(sender, user, **kwargs):
 383     return {
 384         'is_staff': str(user.is_staff),
 385         'is_active': str(user.is_active),
 386         'email': user.email,
 387         'group': [g.name for g in user.groups.all()]
 388     }