Implement secure RBAC for secretstore API

Add new system scope specific RBAC rules for the secretstore API.
    The new rules allow all roles to list and get secret stores.

Change-Id: Ibb19e9854e8bafd2a454c0792503c6f4360e7cf7

barbican/common/policies/secretstores.py

@@ -13,11 +13,13 @@
 from oslo_policy import policy
 
 
+_READER = "role:reader"
+
 rules = [
     policy.DocumentedRuleDefault(
         name='secretstores:get',
-        check_str='rule:admin',
-        scope_types=[],
+        check_str=f'rule:all_users or {_READER}',
+        scope_types=['project', 'system'],
         description='Get list of available secret store backends.',
         operations=[
             {
@@ -28,8 +30,8 @@ rules = [
     ),
     policy.DocumentedRuleDefault(
         name='secretstores:get_global_default',
-        check_str='rule:admin',
-        scope_types=[],
+        check_str=f'rule:all_users or {_READER}',
+        scope_types=['project', 'system'],
         description='Get a reference to the secret store that is used as ' +
                     'default secret store backend for the deployment.',
         operations=[
@@ -41,8 +43,8 @@ rules = [
     ),
     policy.DocumentedRuleDefault(
         name='secretstores:get_preferred',
-        check_str='rule:admin',
-        scope_types=[],
+        check_str=f'rule:all_users or {_READER}',
+        scope_types=['project', 'system'],
         description='Get a reference to the preferred secret store if ' +
                     'assigned previously.',
         operations=[
@@ -55,7 +57,7 @@ rules = [
     policy.DocumentedRuleDefault(
         name='secretstore_preferred:post',
         check_str='rule:admin',
-        scope_types=[],
+        scope_types=['project'],
         description='Set a secret store backend to be preferred store ' +
                     'backend for their project.',
         operations=[
@@ -68,7 +70,7 @@ rules = [
     policy.DocumentedRuleDefault(
         name='secretstore_preferred:delete',
         check_str='rule:admin',
-        scope_types=[],
+        scope_types=['project'],
         description='Remove preferred secret store backend setting for ' +
                     'their project.',
         operations=[
@@ -80,8 +82,8 @@ rules = [
     ),
     policy.DocumentedRuleDefault(
         name='secretstore:get',
-        check_str='rule:admin',
-        scope_types=[],
+        check_str=f'rule:all_users or {_READER}',
+        scope_types=['project', 'system'],
         description='Get details of secret store by its ID.',
         operations=[
             {

barbican/tests/api/test_resources_policy.py

@@ -1164,27 +1164,18 @@ class WhenTestingSecretStoresResource(BaseTestCase):
         self.assertIsNotNone(self.policy_enforcer.rules)
 
     def test_should_pass_get_all_secret_stores(self):
-        self._assert_pass_rbac(['admin'],
-                               self._invoke_on_get)
-
-    def test_should_raise_get_all_secret_stores(self):
-        self._assert_fail_rbac([None, 'creator', 'observer', 'audit'],
+        self._assert_pass_rbac(
+            ['admin', 'observer', 'audit', 'creator', 'reader'],
             self._invoke_on_get)
 
     def test_should_pass_get_global_default(self):
-        self._assert_pass_rbac(['admin'],
-                               self._invoke_get_global_default)
-
-    def test_should_raise_get_global_default(self):
-        self._assert_fail_rbac([None, 'creator', 'observer', 'audit'],
+        self._assert_pass_rbac(
+            ['admin', 'observer', 'audit', 'creator', 'reader'],
             self._invoke_get_global_default)
 
     def test_should_pass_get_preferred(self):
-        self._assert_pass_rbac(['admin'],
-                               self._invoke_get_preferred)
-
-    def test_should_raise_get_preferred(self):
-        self._assert_fail_rbac([None, 'creator', 'observer', 'audit'],
+        self._assert_pass_rbac(
+            ['admin', 'observer', 'audit', 'creator', 'reader'],
             self._invoke_get_preferred)
 
     def _invoke_on_get(self):
@@ -1235,11 +1226,8 @@ class WhenTestingSecretStoreResource(BaseTestCase):
         self.assertIsNotNone(self.policy_enforcer.rules)
 
     def test_should_pass_get_a_secret_store(self):
-        self._assert_pass_rbac(['admin'],
-                               self._invoke_on_get)
-
-    def test_should_raise_get_a_secret_store(self):
-        self._assert_fail_rbac([None, 'creator', 'observer', 'audit'],
+        self._assert_pass_rbac(
+            ['admin', 'observer', 'audit', 'creator', 'reader'],
             self._invoke_on_get)
 
     def _invoke_on_get(self):
@@ -1278,7 +1266,8 @@ class WhenTestingPreferredSecretStoreResource(BaseTestCase):
                                self._invoke_on_post)
 
     def test_should_raise_set_preferred_secret_store(self):
-        self._assert_fail_rbac([None, 'creator', 'observer', 'audit'],
+        self._assert_fail_rbac(
+            [None, 'creator', 'observer', 'audit', 'reader'],
             self._invoke_on_post)
 
     def _invoke_on_post(self):

functionaltests/api/v1/functional/test_secretstores.py

@@ -29,6 +29,13 @@ admin_b = CONF.rbac_users.admin_b
 observer_b = CONF.rbac_users.observer_b
 
 test_user_data_when_enabled = {
+    'with_admin_a': {'user': admin_a, 'expected_return': 200},
+    'with_creator_a': {'user': creator_a, 'expected_return': 200},
+    'with_observer_a': {'user': observer_a, 'expected_return': 200},
+    'with_auditor_a': {'user': auditor_a, 'expected_return': 200},
+}
+
+test_user_data_admin_ops_when_enabled = {
     'with_admin_a': {'user': admin_a, 'expected_return': 200},
     'with_creator_a': {'user': creator_a, 'expected_return': 403},
     'with_observer_a': {'user': observer_a, 'expected_return': 403},
@@ -37,9 +44,9 @@ test_user_data_when_enabled = {
 
 test_user_data_when_not_enabled = {
     'with_admin_a': {'user': admin_a, 'expected_return': 404},
-    'with_creator_a': {'user': creator_a, 'expected_return': 403},
-    'with_observer_a': {'user': observer_a, 'expected_return': 403},
-    'with_auditor_a': {'user': auditor_a, 'expected_return': 403},
+    'with_creator_a': {'user': creator_a, 'expected_return': 404},
+    'with_observer_a': {'user': observer_a, 'expected_return': 404},
+    'with_auditor_a': {'user': auditor_a, 'expected_return': 404},
 }
 
 
@@ -183,7 +190,7 @@ class SecretStoresTestCase(base.TestCase):
     @testcase.skipUnless(base.conf_multiple_backends_enabled, 'executed only '
                          'when multiple backends support is enabled in '
                          'barbican server side')
-    @utils.parameterized_dataset(test_user_data_when_enabled)
+    @utils.parameterized_dataset(test_user_data_admin_ops_when_enabled)
     def test_unset_project_preferred_store_multiple_enabled(self, user,
                                                             expected_return):
 

releasenotes/notes/secure-rbac-secretstore-policy-ffa782850082add8.yaml

@@ -0,0 +1,9 @@
+---
+features:
+  - |
+    Implement secure-rbac for secretstores resource.
+security:
+  - |
+    The current policy only allows users with the admin role to
+    list and get secretstore resources.  The new policy allows all
+    users to perform these operations.