django-rest-framework/rest_framework/tests/test_authentication.py

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from __future__ import unicode_literals
from django.contrib.auth.models import User
from django.http import HttpResponse
from django.test import Client, TestCase
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from django.utils import unittest
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from rest_framework import HTTP_HEADER_ENCODING
from rest_framework import exceptions
from rest_framework import permissions
from rest_framework import status
from rest_framework.authentication import (
BaseAuthentication,
TokenAuthentication,
BasicAuthentication,
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SessionAuthentication,
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OAuthAuthentication,
OAuth2Authentication
)
from rest_framework.authtoken.models import Token
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from rest_framework.compat import patterns, url, include
from rest_framework.compat import oauth2_provider, oauth2_provider_models, oauth2_provider_scope
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from rest_framework.compat import oauth, oauth_provider
from rest_framework.tests.utils import RequestFactory
from rest_framework.views import APIView
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import json
import base64
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import time
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import datetime
factory = RequestFactory()
class MockView(APIView):
permission_classes = (permissions.IsAuthenticated,)
def get(self, request):
return HttpResponse({'a': 1, 'b': 2, 'c': 3})
def post(self, request):
return HttpResponse({'a': 1, 'b': 2, 'c': 3})
def put(self, request):
return HttpResponse({'a': 1, 'b': 2, 'c': 3})
urlpatterns = patterns('',
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(r'^session/$', MockView.as_view(authentication_classes=[SessionAuthentication])),
(r'^basic/$', MockView.as_view(authentication_classes=[BasicAuthentication])),
(r'^token/$', MockView.as_view(authentication_classes=[TokenAuthentication])),
(r'^auth-token/$', 'rest_framework.authtoken.views.obtain_auth_token'),
(r'^oauth/$', MockView.as_view(authentication_classes=[OAuthAuthentication])),
(r'^oauth-with-scope/$', MockView.as_view(authentication_classes=[OAuthAuthentication],
permission_classes=[permissions.TokenHasReadWriteScope]))
)
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if oauth2_provider is not None:
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urlpatterns += patterns('',
url(r'^oauth2/', include('provider.oauth2.urls', namespace='oauth2')),
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url(r'^oauth2-test/$', MockView.as_view(authentication_classes=[OAuth2Authentication])),
url(r'^oauth2-with-scope-test/$', MockView.as_view(authentication_classes=[OAuth2Authentication],
permission_classes=[permissions.TokenHasReadWriteScope])),
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)
class BasicAuthTests(TestCase):
"""Basic authentication"""
urls = 'rest_framework.tests.test_authentication'
def setUp(self):
self.csrf_client = Client(enforce_csrf_checks=True)
self.username = 'john'
self.email = 'lennon@thebeatles.com'
self.password = 'password'
self.user = User.objects.create_user(self.username, self.email, self.password)
def test_post_form_passing_basic_auth(self):
"""Ensure POSTing json over basic auth with correct credentials passes and does not require CSRF"""
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credentials = ('%s:%s' % (self.username, self.password))
base64_credentials = base64.b64encode(credentials.encode(HTTP_HEADER_ENCODING)).decode(HTTP_HEADER_ENCODING)
auth = 'Basic %s' % base64_credentials
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response = self.csrf_client.post('/basic/', {'example': 'example'}, HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, status.HTTP_200_OK)
def test_post_json_passing_basic_auth(self):
"""Ensure POSTing form over basic auth with correct credentials passes and does not require CSRF"""
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credentials = ('%s:%s' % (self.username, self.password))
base64_credentials = base64.b64encode(credentials.encode(HTTP_HEADER_ENCODING)).decode(HTTP_HEADER_ENCODING)
auth = 'Basic %s' % base64_credentials
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response = self.csrf_client.post('/basic/', json.dumps({'example': 'example'}), 'application/json', HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, status.HTTP_200_OK)
def test_post_form_failing_basic_auth(self):
"""Ensure POSTing form over basic auth without correct credentials fails"""
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response = self.csrf_client.post('/basic/', {'example': 'example'})
self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)
def test_post_json_failing_basic_auth(self):
"""Ensure POSTing json over basic auth without correct credentials fails"""
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response = self.csrf_client.post('/basic/', json.dumps({'example': 'example'}), 'application/json')
self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)
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self.assertEqual(response['WWW-Authenticate'], 'Basic realm="api"')
class SessionAuthTests(TestCase):
"""User session authentication"""
urls = 'rest_framework.tests.test_authentication'
def setUp(self):
self.csrf_client = Client(enforce_csrf_checks=True)
self.non_csrf_client = Client(enforce_csrf_checks=False)
self.username = 'john'
self.email = 'lennon@thebeatles.com'
self.password = 'password'
self.user = User.objects.create_user(self.username, self.email, self.password)
def tearDown(self):
self.csrf_client.logout()
def test_post_form_session_auth_failing_csrf(self):
"""
Ensure POSTing form over session authentication without CSRF token fails.
"""
self.csrf_client.login(username=self.username, password=self.password)
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response = self.csrf_client.post('/session/', {'example': 'example'})
self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)
def test_post_form_session_auth_passing(self):
"""
Ensure POSTing form over session authentication with logged in user and CSRF token passes.
"""
self.non_csrf_client.login(username=self.username, password=self.password)
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response = self.non_csrf_client.post('/session/', {'example': 'example'})
self.assertEqual(response.status_code, status.HTTP_200_OK)
def test_put_form_session_auth_passing(self):
"""
Ensure PUTting form over session authentication with logged in user and CSRF token passes.
"""
self.non_csrf_client.login(username=self.username, password=self.password)
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response = self.non_csrf_client.put('/session/', {'example': 'example'})
self.assertEqual(response.status_code, status.HTTP_200_OK)
def test_post_form_session_auth_failing(self):
"""
Ensure POSTing form over session authentication without logged in user fails.
"""
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response = self.csrf_client.post('/session/', {'example': 'example'})
self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)
class TokenAuthTests(TestCase):
"""Token authentication"""
urls = 'rest_framework.tests.test_authentication'
def setUp(self):
self.csrf_client = Client(enforce_csrf_checks=True)
self.username = 'john'
self.email = 'lennon@thebeatles.com'
self.password = 'password'
self.user = User.objects.create_user(self.username, self.email, self.password)
self.key = 'abcd1234'
self.token = Token.objects.create(key=self.key, user=self.user)
def test_post_form_passing_token_auth(self):
"""Ensure POSTing json over token auth with correct credentials passes and does not require CSRF"""
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auth = 'Token ' + self.key
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response = self.csrf_client.post('/token/', {'example': 'example'}, HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, status.HTTP_200_OK)
def test_post_json_passing_token_auth(self):
"""Ensure POSTing form over token auth with correct credentials passes and does not require CSRF"""
auth = "Token " + self.key
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response = self.csrf_client.post('/token/', json.dumps({'example': 'example'}), 'application/json', HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, status.HTTP_200_OK)
def test_post_form_failing_token_auth(self):
"""Ensure POSTing form over token auth without correct credentials fails"""
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response = self.csrf_client.post('/token/', {'example': 'example'})
self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)
def test_post_json_failing_token_auth(self):
"""Ensure POSTing json over token auth without correct credentials fails"""
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response = self.csrf_client.post('/token/', json.dumps({'example': 'example'}), 'application/json')
self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)
def test_token_has_auto_assigned_key_if_none_provided(self):
"""Ensure creating a token with no key will auto-assign a key"""
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self.token.delete()
token = Token.objects.create(user=self.user)
self.assertTrue(bool(token.key))
def test_token_login_json(self):
"""Ensure token login view using JSON POST works."""
client = Client(enforce_csrf_checks=True)
response = client.post('/auth-token/',
json.dumps({'username': self.username, 'password': self.password}), 'application/json')
self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(json.loads(response.content.decode('ascii'))['token'], self.key)
def test_token_login_json_bad_creds(self):
"""Ensure token login view using JSON POST fails if bad credentials are used."""
client = Client(enforce_csrf_checks=True)
response = client.post('/auth-token/',
json.dumps({'username': self.username, 'password': "badpass"}), 'application/json')
self.assertEqual(response.status_code, 400)
def test_token_login_json_missing_fields(self):
"""Ensure token login view using JSON POST fails if missing fields."""
client = Client(enforce_csrf_checks=True)
response = client.post('/auth-token/',
json.dumps({'username': self.username}), 'application/json')
self.assertEqual(response.status_code, 400)
def test_token_login_form(self):
"""Ensure token login view using form POST works."""
client = Client(enforce_csrf_checks=True)
response = client.post('/auth-token/',
{'username': self.username, 'password': self.password})
self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(json.loads(response.content.decode('ascii'))['token'], self.key)
class IncorrectCredentialsTests(TestCase):
def test_incorrect_credentials(self):
"""
If a request contains bad authentication credentials, then
authentication should run and error, even if no permissions
are set on the view.
"""
class IncorrectCredentialsAuth(BaseAuthentication):
def authenticate(self, request):
raise exceptions.AuthenticationFailed('Bad credentials')
request = factory.get('/')
view = MockView.as_view(
authentication_classes=(IncorrectCredentialsAuth,),
permission_classes=()
)
response = view(request)
self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)
self.assertEqual(response.data, {'detail': 'Bad credentials'})
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class OAuthTests(TestCase):
"""OAuth 1.0a authentication"""
urls = 'rest_framework.tests.test_authentication'
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def setUp(self):
# these imports are here because oauth is optional and hiding them in try..except block or compat
# could obscure problems if something breaks
from oauth_provider.models import Consumer, Resource
from oauth_provider.models import Token as OAuthToken
from oauth_provider import consts
self.consts = consts
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self.csrf_client = Client(enforce_csrf_checks=True)
self.username = 'john'
self.email = 'lennon@thebeatles.com'
self.password = 'password'
self.user = User.objects.create_user(self.username, self.email, self.password)
self.CONSUMER_KEY = 'consumer_key'
self.CONSUMER_SECRET = 'consumer_secret'
self.TOKEN_KEY = "token_key"
self.TOKEN_SECRET = "token_secret"
self.consumer = Consumer.objects.create(key=self.CONSUMER_KEY, secret=self.CONSUMER_SECRET,
name='example', user=self.user, status=self.consts.ACCEPTED)
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self.resource = Resource.objects.create(name="resource name", url="api/")
self.token = OAuthToken.objects.create(user=self.user, consumer=self.consumer, resource=self.resource,
token_type=OAuthToken.ACCESS, key=self.TOKEN_KEY, secret=self.TOKEN_SECRET, is_approved=True
)
def _create_authorization_header(self):
params = {
'oauth_version': "1.0",
'oauth_nonce': oauth.generate_nonce(),
'oauth_timestamp': int(time.time()),
'oauth_token': self.token.key,
'oauth_consumer_key': self.consumer.key
}
req = oauth.Request(method="GET", url="http://example.com", parameters=params)
signature_method = oauth.SignatureMethod_PLAINTEXT()
req.sign_request(signature_method, self.consumer, self.token)
return req.to_header()["Authorization"]
def _create_authorization_url_parameters(self):
params = {
'oauth_version': "1.0",
'oauth_nonce': oauth.generate_nonce(),
'oauth_timestamp': int(time.time()),
'oauth_token': self.token.key,
'oauth_consumer_key': self.consumer.key
}
req = oauth.Request(method="GET", url="http://example.com", parameters=params)
signature_method = oauth.SignatureMethod_PLAINTEXT()
req.sign_request(signature_method, self.consumer, self.token)
return dict(req)
@unittest.skipUnless(oauth_provider, 'django-oauth-plus not installed')
@unittest.skipUnless(oauth, 'oauth2 not installed')
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def test_post_form_passing_oauth(self):
"""Ensure POSTing form over OAuth with correct credentials passes and does not require CSRF"""
auth = self._create_authorization_header()
response = self.csrf_client.post('/oauth/', {'example': 'example'}, HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, 200)
@unittest.skipUnless(oauth_provider, 'django-oauth-plus not installed')
@unittest.skipUnless(oauth, 'oauth2 not installed')
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def test_post_form_repeated_nonce_failing_oauth(self):
"""Ensure POSTing form over OAuth with repeated auth (same nonces and timestamp) credentials fails"""
auth = self._create_authorization_header()
response = self.csrf_client.post('/oauth/', {'example': 'example'}, HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, 200)
# simulate reply attack auth header containes already used (nonce, timestamp) pair
response = self.csrf_client.post('/oauth/', {'example': 'example'}, HTTP_AUTHORIZATION=auth)
self.assertIn(response.status_code, (status.HTTP_401_UNAUTHORIZED, status.HTTP_403_FORBIDDEN))
@unittest.skipUnless(oauth_provider, 'django-oauth-plus not installed')
@unittest.skipUnless(oauth, 'oauth2 not installed')
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def test_post_form_token_removed_failing_oauth(self):
"""Ensure POSTing when there is no OAuth access token in db fails"""
self.token.delete()
auth = self._create_authorization_header()
response = self.csrf_client.post('/oauth/', {'example': 'example'}, HTTP_AUTHORIZATION=auth)
self.assertIn(response.status_code, (status.HTTP_401_UNAUTHORIZED, status.HTTP_403_FORBIDDEN))
@unittest.skipUnless(oauth_provider, 'django-oauth-plus not installed')
@unittest.skipUnless(oauth, 'oauth2 not installed')
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def test_post_form_consumer_status_not_accepted_failing_oauth(self):
"""Ensure POSTing when consumer status is anything other than ACCEPTED fails"""
for consumer_status in (self.consts.CANCELED, self.consts.PENDING, self.consts.REJECTED):
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self.consumer.status = consumer_status
self.consumer.save()
auth = self._create_authorization_header()
response = self.csrf_client.post('/oauth/', {'example': 'example'}, HTTP_AUTHORIZATION=auth)
self.assertIn(response.status_code, (status.HTTP_401_UNAUTHORIZED, status.HTTP_403_FORBIDDEN))
@unittest.skipUnless(oauth_provider, 'django-oauth-plus not installed')
@unittest.skipUnless(oauth, 'oauth2 not installed')
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def test_post_form_with_request_token_failing_oauth(self):
"""Ensure POSTing with unauthorized request token instead of access token fails"""
self.token.token_type = self.token.REQUEST
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self.token.save()
auth = self._create_authorization_header()
response = self.csrf_client.post('/oauth/', {'example': 'example'}, HTTP_AUTHORIZATION=auth)
self.assertIn(response.status_code, (status.HTTP_401_UNAUTHORIZED, status.HTTP_403_FORBIDDEN))
@unittest.skipUnless(oauth_provider, 'django-oauth-plus not installed')
@unittest.skipUnless(oauth, 'oauth2 not installed')
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def test_post_form_with_urlencoded_parameters(self):
"""Ensure POSTing with x-www-form-urlencoded auth parameters passes"""
params = self._create_authorization_url_parameters()
response = self.csrf_client.post('/oauth/', params)
self.assertEqual(response.status_code, 200)
@unittest.skipUnless(oauth_provider, 'django-oauth-plus not installed')
@unittest.skipUnless(oauth, 'oauth2 not installed')
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def test_get_form_with_url_parameters(self):
"""Ensure GETing with auth in url parameters passes"""
params = self._create_authorization_url_parameters()
response = self.csrf_client.get('/oauth/', params)
self.assertEqual(response.status_code, 200)
@unittest.skipUnless(oauth_provider, 'django-oauth-plus not installed')
@unittest.skipUnless(oauth, 'oauth2 not installed')
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def test_post_hmac_sha1_signature_passes(self):
"""Ensure POSTing using HMAC_SHA1 signature method passes"""
params = {
'oauth_version': "1.0",
'oauth_nonce': oauth.generate_nonce(),
'oauth_timestamp': int(time.time()),
'oauth_token': self.token.key,
'oauth_consumer_key': self.consumer.key
}
req = oauth.Request(method="POST", url="http://testserver/oauth/", parameters=params)
signature_method = oauth.SignatureMethod_HMAC_SHA1()
req.sign_request(signature_method, self.consumer, self.token)
auth = req.to_header()["Authorization"]
response = self.csrf_client.post('/oauth/', HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, 200)
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@unittest.skipUnless(oauth_provider, 'django-oauth-plus not installed')
@unittest.skipUnless(oauth, 'oauth2 not installed')
def test_get_form_with_readonly_resource_passing_auth(self):
"""Ensure POSTing with a readonly resource instead of a write scope fails"""
read_only_access_token = self.token
read_only_access_token.resource.is_readonly = True
read_only_access_token.resource.save()
params = self._create_authorization_url_parameters()
response = self.csrf_client.get('/oauth-with-scope/', params)
self.assertEqual(response.status_code, 200)
@unittest.skipUnless(oauth_provider, 'django-oauth-plus not installed')
@unittest.skipUnless(oauth, 'oauth2 not installed')
def test_post_form_with_readonly_resource_failing_auth(self):
"""Ensure POSTing with a readonly resource instead of a write scope fails"""
read_only_access_token = self.token
read_only_access_token.resource.is_readonly = True
read_only_access_token.resource.save()
params = self._create_authorization_url_parameters()
response = self.csrf_client.post('/oauth-with-scope/', params)
self.assertIn(response.status_code, (status.HTTP_401_UNAUTHORIZED, status.HTTP_403_FORBIDDEN))
@unittest.skipUnless(oauth_provider, 'django-oauth-plus not installed')
@unittest.skipUnless(oauth, 'oauth2 not installed')
def test_post_form_with_write_resource_passing_auth(self):
"""Ensure POSTing with a write resource succeed"""
read_write_access_token = self.token
read_write_access_token.resource.is_readonly = False
read_write_access_token.resource.save()
params = self._create_authorization_url_parameters()
response = self.csrf_client.post('/oauth-with-scope/', params)
self.assertEqual(response.status_code, 200)
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class OAuth2Tests(TestCase):
"""OAuth 2.0 authentication"""
urls = 'rest_framework.tests.test_authentication'
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def setUp(self):
self.csrf_client = Client(enforce_csrf_checks=True)
self.username = 'john'
self.email = 'lennon@thebeatles.com'
self.password = 'password'
self.user = User.objects.create_user(self.username, self.email, self.password)
self.CLIENT_ID = 'client_key'
self.CLIENT_SECRET = 'client_secret'
self.ACCESS_TOKEN = "access_token"
self.REFRESH_TOKEN = "refresh_token"
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self.oauth2_client = oauth2_provider_models.Client.objects.create(
client_id=self.CLIENT_ID,
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client_secret=self.CLIENT_SECRET,
redirect_uri='',
client_type=0,
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name='example',
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user=None,
)
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self.access_token = oauth2_provider_models.AccessToken.objects.create(
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token=self.ACCESS_TOKEN,
client=self.oauth2_client,
user=self.user,
)
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self.refresh_token = oauth2_provider_models.RefreshToken.objects.create(
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user=self.user,
access_token=self.access_token,
client=self.oauth2_client
)
def _create_authorization_header(self, token=None):
return "Bearer {0}".format(token or self.access_token.token)
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@unittest.skipUnless(oauth2_provider, 'django-oauth2-provider not installed')
def test_get_form_with_wrong_authorization_header_token_type_failing(self):
"""Ensure that a wrong token type lead to the correct HTTP error status code"""
auth = "Wrong token-type-obsviously"
response = self.csrf_client.get('/oauth2-test/', {}, HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, 401)
response = self.csrf_client.get('/oauth2-test/', HTTP_AUTHORIZATION=auth)
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self.assertEqual(response.status_code, 401)
@unittest.skipUnless(oauth2_provider, 'django-oauth2-provider not installed')
def test_get_form_with_wrong_authorization_header_token_format_failing(self):
"""Ensure that a wrong token format lead to the correct HTTP error status code"""
auth = "Bearer wrong token format"
response = self.csrf_client.get('/oauth2-test/', {}, HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, 401)
response = self.csrf_client.get('/oauth2-test/', HTTP_AUTHORIZATION=auth)
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self.assertEqual(response.status_code, 401)
@unittest.skipUnless(oauth2_provider, 'django-oauth2-provider not installed')
def test_get_form_with_wrong_authorization_header_token_failing(self):
"""Ensure that a wrong token lead to the correct HTTP error status code"""
auth = "Bearer wrong-token"
response = self.csrf_client.get('/oauth2-test/', {}, HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, 401)
response = self.csrf_client.get('/oauth2-test/', HTTP_AUTHORIZATION=auth)
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self.assertEqual(response.status_code, 401)
@unittest.skipUnless(oauth2_provider, 'django-oauth2-provider not installed')
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def test_get_form_passing_auth(self):
"""Ensure GETing form over OAuth with correct client credentials succeed"""
auth = self._create_authorization_header()
response = self.csrf_client.get('/oauth2-test/', HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, 200)
@unittest.skipUnless(oauth2_provider, 'django-oauth2-provider not installed')
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def test_post_form_passing_auth(self):
"""Ensure POSTing form over OAuth with correct credentials passes and does not require CSRF"""
auth = self._create_authorization_header()
response = self.csrf_client.post('/oauth2-test/', HTTP_AUTHORIZATION=auth)
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self.assertEqual(response.status_code, 200)
@unittest.skipUnless(oauth2_provider, 'django-oauth2-provider not installed')
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def test_post_form_token_removed_failing_auth(self):
"""Ensure POSTing when there is no OAuth access token in db fails"""
self.access_token.delete()
auth = self._create_authorization_header()
response = self.csrf_client.post('/oauth2-test/', HTTP_AUTHORIZATION=auth)
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self.assertIn(response.status_code, (status.HTTP_401_UNAUTHORIZED, status.HTTP_403_FORBIDDEN))
@unittest.skipUnless(oauth2_provider, 'django-oauth2-provider not installed')
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def test_post_form_with_refresh_token_failing_auth(self):
"""Ensure POSTing with refresh token instead of access token fails"""
auth = self._create_authorization_header(token=self.refresh_token.token)
response = self.csrf_client.post('/oauth2-test/', HTTP_AUTHORIZATION=auth)
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self.assertIn(response.status_code, (status.HTTP_401_UNAUTHORIZED, status.HTTP_403_FORBIDDEN))
@unittest.skipUnless(oauth2_provider, 'django-oauth2-provider not installed')
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def test_post_form_with_expired_access_token_failing_auth(self):
"""Ensure POSTing with expired access token fails with an 'Invalid token' error"""
self.access_token.expires = datetime.datetime.now() - datetime.timedelta(seconds=10) # 10 seconds late
self.access_token.save()
auth = self._create_authorization_header()
response = self.csrf_client.post('/oauth2-test/', HTTP_AUTHORIZATION=auth)
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self.assertIn(response.status_code, (status.HTTP_401_UNAUTHORIZED, status.HTTP_403_FORBIDDEN))
self.assertIn('Invalid token', response.content)
@unittest.skipUnless(oauth2_provider, 'django-oauth2-provider not installed')
def test_post_form_with_invalid_scope_failing_auth(self):
"""Ensure POSTing with a readonly scope instead of a write scope fails"""
read_only_access_token = self.access_token
read_only_access_token.scope = oauth2_provider_scope.SCOPE_NAME_DICT['read']
read_only_access_token.save()
auth = self._create_authorization_header(token=read_only_access_token.token)
response = self.csrf_client.get('/oauth2-with-scope-test/', HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, 200)
response = self.csrf_client.post('/oauth2-with-scope-test/', HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)
@unittest.skipUnless(oauth2_provider, 'django-oauth2-provider not installed')
def test_post_form_with_valid_scope_passing_auth(self):
"""Ensure POSTing with a write scope succeed"""
read_write_access_token = self.access_token
read_write_access_token.scope = oauth2_provider_scope.SCOPE_NAME_DICT['write']
read_write_access_token.save()
auth = self._create_authorization_header(token=read_write_access_token.token)
response = self.csrf_client.post('/oauth2-with-scope-test/', HTTP_AUTHORIZATION=auth)
self.assertEqual(response.status_code, 200)