Enumerate Projects with Unscoped Tokens

Creating a client with a session using an Unscoped tokens now sets auth
info in client.  This Auth Info is necessary in order to enumerate
projects.  This is the standard login path for Horizon.

Change-Id: I688a27cd0e7c98e7cf899ac65bb593a85171813f

3 files changed, 75 insertions, 11 deletions

diff --git a/keystoneclient/base.py b/keystoneclient/base.py
index f94c16b..a0618f9 100644
--- a/keystoneclient/base.py
+++ b/keystoneclient/base.py
@@ -25,6 +25,7 @@ import functools
 import six
 from six.moves import urllib
 
+from keystoneclient import auth
 from keystoneclient import exceptions
 from keystoneclient.openstack.common.apiclient import base
 
@@ -337,19 +338,26 @@ class CrudManager(Manager):
         return self._head(self.build_url(dict_args_in_out=kwargs))
 
     @filter_kwargs
-    def list(self, **kwargs):
+    def list(self, fallback_to_auth=False, **kwargs):
         url = self.build_url(dict_args_in_out=kwargs)
 
-        if kwargs:
-            query = '?%s' % urllib.parse.urlencode(kwargs)
-        else:
-            query = ''
-        return self._list(
-            '%(url)s%(query)s' % {
-                'url': url,
-                'query': query,
-            },
-            self.collection_key)
+        try:
+            if kwargs:
+                query = '?%s' % urllib.parse.urlencode(kwargs)
+            else:
+                query = ''
+            url_query = '%(url)s%(query)s' % {'url': url, 'query': query}
+            return self._list(
+                url_query,
+                self.collection_key)
+        except exceptions.EmptyCatalog:
+            if fallback_to_auth:
+                return self._list(
+                    url_query,
+                    self.collection_key,
+                    endpoint_filter={'interface': auth.AUTH_INTERFACE})
+            else:
+                raise
 
     @filter_kwargs
     def put(self, **kwargs):
diff --git a/keystoneclient/tests/auth/test_identity_v3.py b/keystoneclient/tests/auth/test_identity_v3.py
index ecdc38a..bce4fa7 100644
--- a/keystoneclient/tests/auth/test_identity_v3.py
+++ b/keystoneclient/tests/auth/test_identity_v3.py
@@ -15,7 +15,9 @@ import uuid
 
 from keystoneclient import access
 from keystoneclient.auth.identity import v3
+from keystoneclient import client
 from keystoneclient import exceptions
+from keystoneclient import fixture
 from keystoneclient import session
 from keystoneclient.tests import utils
 
@@ -110,6 +112,11 @@ class V3IdentityPlugin(utils.TestCase):
 
     def setUp(self):
         super(V3IdentityPlugin, self).setUp()
+
+        V3_URL = "%sv3" % self.TEST_URL
+        self.TEST_DISCOVERY_RESPONSE = {
+            'versions': {'values': [fixture.V3Discovery(V3_URL)]}}
+
         self.TEST_RESPONSE_DICT = {
             "token": {
                 "methods": [
@@ -138,6 +145,31 @@ class V3IdentityPlugin(utils.TestCase):
                 "catalog": self.TEST_SERVICE_CATALOG
             },
         }
+        self.TEST_PROJECTS_RESPONSE = {
+            "projects": [
+                {
+                    "domain_id": "1789d1",
+                    "enabled": "True",
+                    "id": "263fd9",
+                    "links": {
+                        "self": "https://identity:5000/v3/projects/263fd9"
+                    },
+                    "name": "Dev Group A"
+                },
+                {
+                    "domain_id": "1789d1",
+                    "enabled": "True",
+                    "id": "e56ad3",
+                    "links": {
+                        "self": "https://identity:5000/v3/projects/e56ad3"
+                    },
+                    "name": "Dev Group B"
+                }
+            ],
+            "links": {
+                "self": "https://identity:5000/v3/projects",
+            }
+        }
 
     def stub_auth(self, subject_token=None, **kwargs):
         if not subject_token:
@@ -165,6 +197,29 @@ class V3IdentityPlugin(utils.TestCase):
         self.assertRequestHeaderEqual('Accept', 'application/json')
         self.assertEqual(s.auth.auth_ref.auth_token, self.TEST_TOKEN)
 
+    def test_authenticate_with_username_password_unscoped(self):
+        del self.TEST_RESPONSE_DICT['token']['catalog']
+        del self.TEST_RESPONSE_DICT['token']['project']
+
+        self.stub_auth(json=self.TEST_RESPONSE_DICT)
+        self.stub_url(method="GET", json=self.TEST_DISCOVERY_RESPONSE)
+        test_user_id = self.TEST_RESPONSE_DICT['token']['user']['id']
+        self.stub_url(method="GET",
+                      json=self.TEST_PROJECTS_RESPONSE,
+                      parts=['users', test_user_id, 'projects'])
+
+        a = v3.Password(self.TEST_URL,
+                        username=self.TEST_USER,
+                        password=self.TEST_PASS)
+        s = session.Session(auth=a)
+        cs = client.Client(session=s, auth_url=self.TEST_URL)
+
+        # As a sanity check on the auth_ref, make sure client has the
+        # proper user id, that it fetches the right project response
+        self.assertEqual(test_user_id, a.auth_ref.user_id)
+        t = cs.projects.list(user=a.auth_ref.user_id)
+        self.assertEqual(2, len(t))
+
     def test_authenticate_with_username_password_domain_scoped(self):
         self.stub_auth(json=self.TEST_RESPONSE_DICT)
         a = v3.Password(self.TEST_URL, username=self.TEST_USER,
diff --git a/keystoneclient/v3/projects.py b/keystoneclient/v3/projects.py
index ffc9f32..2fcd249 100644
--- a/keystoneclient/v3/projects.py
+++ b/keystoneclient/v3/projects.py
@@ -76,6 +76,7 @@ class ProjectManager(base.CrudManager):
         return super(ProjectManager, self).list(
             base_url=base_url,
             domain_id=base.getid(domain),
+            fallback_to_auth=True,
             **kwargs)
 
     def get(self, project):