Fix app cred create without project_id for domain admins

Users with domain admin role that are not cloud admins are
not able to get scoped context and create an application
credential with project_id, so this change forces the
scoped context in that particular case.

Closes-bug: #1827120
Change-Id: I076a97a6f943ab74a2db8bc5179a7db194009db4
(cherry picked from commit 6eeaf98524)
(cherry picked from commit 778a52e66a)
(cherry picked from commit 13e821a079)
(cherry picked from commit 084ee8aaea)
(cherry picked from commit 2f8aaa03e8)

openstack_dashboard/api/keystone.py

@@ -121,7 +121,7 @@ def _get_endpoint_url(request, endpoint_type, catalog=None):
     return url
 
 
-def keystoneclient(request, admin=False):
+def keystoneclient(request, admin=False, force_scoped=False):
     """Returns a client connected to the Keystone backend.
 
     Several forms of authentication are supported:
@@ -153,7 +153,8 @@ def keystoneclient(request, admin=False):
 
         # If user is Cloud Admin, Domain Admin or Mixed Domain Admin and there
         # is no domain context specified, use domain scoped token
-        if is_domain_admin(request) and not is_domain_context_specified:
+        if (is_domain_admin(request) and not is_domain_context_specified and
+                not force_scoped):
             domain_token = request.session.get('domain_token')
             if domain_token:
                 token_id = getattr(domain_token, 'auth_token', None)
@@ -999,7 +1000,17 @@ def application_credential_create(request, name, secret=None,
                                   roles=None, unrestricted=False,
                                   access_rules=None):
     user = request.user.id
-    manager = keystoneclient(request).application_credentials
+    # NOTE(ganso): users with domain admin role that are not cloud admins are
+    # not able to get scoped context and create an application credential with
+    # project_id, so only in this particular case we force a scoped context
+    force_scoped = False
+    if (request.user.project_id and request.session.get("domain_token") and
+            not policy.check(
+                (("identity", "identity:update_domain"),), request)):
+        force_scoped = True
+
+    manager = keystoneclient(
+        request, force_scoped=force_scoped).application_credentials
     try:
         return manager.create(name=name, user=user, secret=secret,
                               description=description, expires_at=expires_at,

openstack_dashboard/test/unit/api/test_keystone.py

@@ -20,6 +20,7 @@ from unittest import mock
 
 from django.test.utils import override_settings
 from openstack_dashboard import api
+from openstack_dashboard import policy
 from openstack_dashboard.test import helpers as test
 
 
@@ -142,3 +143,46 @@ class APIVersionTests(test.APIMockTestCase):
         keystoneclient.session.get_endpoint_data.assert_called_once_with(
             service_type='identity')
         self.assertEqual((3, 10), api_version)
+
+
+class ApplicationCredentialsAPITests(test.APIMockTestCase):
+
+    @mock.patch.object(policy, 'check')
+    @mock.patch.object(api.keystone, 'keystoneclient')
+    def test_application_credential_create_domain_token_removed(
+            self, mock_keystoneclient, mock_policy):
+        self.request.session['domain_token'] = 'some_token'
+        mock_policy.return_value = False
+        api.keystone.application_credential_create(self.request, None)
+        mock_keystoneclient.assert_called_once_with(
+            self.request, force_scoped=True)
+
+    @mock.patch.object(policy, 'check')
+    @mock.patch.object(api.keystone, 'keystoneclient')
+    def test_application_credential_create_domain_token_not_removed_policy_true(
+            self, mock_keystoneclient, mock_policy):
+        self.request.session['domain_token'] = 'some_token'
+        mock_policy.return_value = True
+        api.keystone.application_credential_create(self.request, None)
+        mock_keystoneclient.assert_called_once_with(
+            self.request, force_scoped=False)
+
+    @mock.patch.object(policy, 'check')
+    @mock.patch.object(api.keystone, 'keystoneclient')
+    def test_application_credential_create_domain_token_not_removed_no_token(
+            self, mock_keystoneclient, mock_policy):
+        mock_policy.return_value = True
+        api.keystone.application_credential_create(self.request, None)
+        mock_keystoneclient.assert_called_once_with(
+            self.request, force_scoped=False)
+
+    @mock.patch.object(policy, 'check')
+    @mock.patch.object(api.keystone, 'keystoneclient')
+    def test_application_credential_create_domain_token_not_removed_no_project(
+            self, mock_keystoneclient, mock_policy):
+        self.request.session['domain_token'] = 'some_token'
+        mock_policy.return_value = True
+        self.request.user.project_id = None
+        api.keystone.application_credential_create(self.request, None)
+        mock_keystoneclient.assert_called_once_with(
+            self.request, force_scoped=False)