OpenID connect improvements (#484)

* Change create_token_response to only save access_token when it's present in request.response_type

* Remove unused import, fix indentation and improve comment

* Fix AuthorizationEndpoint response_type for OpenID Connect hybrid flow

* Add new ImplicitTokenGrantDispatcher

Changes AuthorizationEndpoint response_type `'token'`, `'id_token'` and
`'id_token token'` to work with OpenID Connect and OAuth2 implicit flow
in a transparent way

* Add new AuthTokenGrantDispatcher

Change AuthorizationEndpoint grant_types `'authorization_code'` to work with
OpenID Connect and OAuth2 authorization flow in a transparent way

* Change tests to include required client_id and redirect_uri

* Remove AuthorizationEndpoint grant_types `'openid'`

Now OpenID Connect and OAuth2 authorization flow can use `authorization_code`
in a transparent way

* Add sone blank lines and fix indentation

* Change AuthorizationEndpoint grant type id_token and id_token token to use openid_connect_implicit direct

* Change default empty value to None and  fix a typo

* Add assert called to AuthTokenGrantDispatcher tests

* Add request to get_authorization_code_scopes

1 files changed, 4 insertions, 4 deletions

diff --git a/tests/oauth2/rfc6749/test_server.py b/tests/oauth2/rfc6749/test_server.py
index 305b795..da303ce 100644
--- a/tests/oauth2/rfc6749/test_server.py
+++ b/tests/oauth2/rfc6749/test_server.py
@@ -279,7 +279,7 @@ twIDAQAB
 
     @mock.patch('oauthlib.common.generate_token', new=lambda: 'abc')
     def test_authorization_grant(self):
-        body = 'grant_type=authorization_code&code=abc&scope=all+of+them&state=xyz'
+        body = 'client_id=me&redirect_uri=http%3A%2F%2Fback.to%2Fme&grant_type=authorization_code&code=abc&scope=all+of+them&state=xyz'
         headers, body, status_code = self.endpoint.create_token_response(
                 '', body=body)
         body = json.loads(body)
@@ -293,7 +293,7 @@ twIDAQAB
         }
         self.assertEqual(body, token)
 
-        body = 'grant_type=authorization_code&code=abc&state=xyz'
+        body = 'client_id=me&redirect_uri=http%3A%2F%2Fback.to%2Fme&grant_type=authorization_code&code=abc&state=xyz'
         headers, body, status_code = self.endpoint.create_token_response(
                 '', body=body)
         body = json.loads(body)
@@ -349,12 +349,12 @@ twIDAQAB
         self.assertEqual(body, token)
 
     def test_missing_type(self):
-        _, body, _ = self.endpoint.create_token_response('', body='')
+        _, body, _ = self.endpoint.create_token_response('', body='client_id=me&redirect_uri=http%3A%2F%2Fback.to%2Fme&code=abc')
         token = {'error': 'unsupported_grant_type'}
         self.assertEqual(json.loads(body), token)
 
     def test_invalid_type(self):
-        body = 'grant_type=invalid'
+        body = 'client_id=me&redirect_uri=http%3A%2F%2Fback.to%2Fme&grant_type=invalid&code=abc'
         _, body, _ = self.endpoint.create_token_response('', body=body)
         token = {'error': 'unsupported_grant_type'}
         self.assertEqual(json.loads(body), token)