Unscoped federated user-specific commands

A federated user can authenticate with the v3unscopedsaml plugin and
list the domains and projects she is allowed to scope to.
This patch introduces the new commands 'federation domain list' and
'federation project list'.
Note that for these commands -and plugin- to be available, the lxml
library must be installed.

Change-Id: I2707b624befcfb0a01b40a094e12fd68a3ee7773
Co-Authored-By: Florent Flament <florent.flament-ext@cloudwatt.com>

4 files changed, 225 insertions, 0 deletions

diff --git a/openstackclient/identity/v3/unscoped_saml.py b/openstackclient/identity/v3/unscoped_saml.py
new file mode 100644
index 00000000..affbaf3a
--- /dev/null
+++ b/openstackclient/identity/v3/unscoped_saml.py
@@ -0,0 +1,79 @@
+#   Licensed under the Apache License, Version 2.0 (the "License"); you may
+#   not use this file except in compliance with the License. You may obtain
+#   a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#   License for the specific language governing permissions and limitations
+#   under the License.
+#
+
+"""Identity v3 unscoped SAML auth action implementations.
+
+The first step of federated auth is to fetch an unscoped token. From there,
+the user can list domains and projects they are allowed to access, and request
+a scoped token."""
+
+import logging
+
+from cliff import lister
+
+from openstackclient.common import exceptions
+from openstackclient.common import utils
+
+
+UNSCOPED_AUTH_PLUGINS = ['v3unscopedsaml', 'v3unscopedadfs']
+
+
+def auth_with_unscoped_saml(func):
+    """Check the unscoped federated context"""
+    def _decorated(self, parsed_args):
+        auth_plugin_name = self.app.client_manager.auth_plugin_name
+        if auth_plugin_name in UNSCOPED_AUTH_PLUGINS:
+            return func(self, parsed_args)
+        else:
+            msg = ('This command requires the use of an unscoped SAML '
+                   'authentication plugin. Please use argument '
+                   '--os-auth-plugin with one of the following '
+                   'plugins: ' + ', '.join(UNSCOPED_AUTH_PLUGINS))
+            raise exceptions.CommandError(msg)
+    return _decorated
+
+
+class ListAccessibleDomains(lister.Lister):
+    """List accessible domains"""
+
+    log = logging.getLogger(__name__ + '.ListAccessibleDomains')
+
+    @auth_with_unscoped_saml
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)', parsed_args)
+        columns = ('ID', 'Enabled', 'Name', 'Description')
+        identity_client = self.app.client_manager.identity
+        data = identity_client.federation.domains.list()
+        return (columns,
+                (utils.get_item_properties(
+                    s, columns,
+                    formatters={},
+                ) for s in data))
+
+
+class ListAccessibleProjects(lister.Lister):
+    """List accessible projects"""
+
+    log = logging.getLogger(__name__ + '.ListAccessibleProjects')
+
+    @auth_with_unscoped_saml
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)', parsed_args)
+        columns = ('ID', 'Domain ID', 'Enabled', 'Name')
+        identity_client = self.app.client_manager.identity
+        data = identity_client.federation.projects.list()
+        return (columns,
+                (utils.get_item_properties(
+                    s, columns,
+                    formatters={},
+                ) for s in data))
diff --git a/openstackclient/tests/fakes.py b/openstackclient/tests/fakes.py
index f8b7bb6f..abad4cff 100644
--- a/openstackclient/tests/fakes.py
+++ b/openstackclient/tests/fakes.py
@@ -199,6 +199,7 @@ class FakeClientManager(object):
         self.network = None
         self.session = None
         self.auth_ref = None
+        self.auth_plugin_name = None
 
 
 class FakeModule(object):
diff --git a/openstackclient/tests/identity/v3/fakes.py b/openstackclient/tests/identity/v3/fakes.py
index 5844d160..b195ed78 100644
--- a/openstackclient/tests/identity/v3/fakes.py
+++ b/openstackclient/tests/identity/v3/fakes.py
@@ -285,6 +285,19 @@ OAUTH_VERIFIER = {
 }
 
 
+class FakeAuth(object):
+    def __init__(self, auth_method_class=None):
+        self._auth_method_class = auth_method_class
+
+    def get_token(self, *args, **kwargs):
+        return token_id
+
+
+class FakeSession(object):
+    def __init__(self, **kwargs):
+        self.auth = FakeAuth()
+
+
 class FakeIdentityv3Client(object):
     def __init__(self, **kwargs):
         self.domains = mock.Mock()
@@ -320,6 +333,10 @@ class FakeFederationManager(object):
         self.mappings.resource_class = fakes.FakeResource(None, {})
         self.protocols = mock.Mock()
         self.protocols.resource_class = fakes.FakeResource(None, {})
+        self.projects = mock.Mock()
+        self.projects.resource_class = fakes.FakeResource(None, {})
+        self.domains = mock.Mock()
+        self.domains.resource_class = fakes.FakeResource(None, {})
 
 
 class FakeFederatedClient(FakeIdentityv3Client):
diff --git a/openstackclient/tests/identity/v3/test_unscoped_saml.py b/openstackclient/tests/identity/v3/test_unscoped_saml.py
new file mode 100644
index 00000000..6b2d3f5b
--- /dev/null
+++ b/openstackclient/tests/identity/v3/test_unscoped_saml.py
@@ -0,0 +1,128 @@
+#   Licensed under the Apache License, Version 2.0 (the "License"); you may
+#   not use this file except in compliance with the License. You may obtain
+#   a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#   License for the specific language governing permissions and limitations
+#   under the License.
+
+import copy
+
+from openstackclient.common import exceptions
+from openstackclient.identity.v3 import unscoped_saml
+from openstackclient.tests import fakes
+from openstackclient.tests.identity.v3 import fakes as identity_fakes
+
+
+class TestUnscopedSAML(identity_fakes.TestFederatedIdentity):
+
+    def setUp(self):
+        super(TestUnscopedSAML, self).setUp()
+
+        federation_lib = self.app.client_manager.identity.federation
+        self.projects_mock = federation_lib.projects
+        self.projects_mock.reset_mock()
+        self.domains_mock = federation_lib.domains
+        self.domains_mock.reset_mock()
+
+
+class TestProjectList(TestUnscopedSAML):
+
+    def setUp(self):
+        super(TestProjectList, self).setUp()
+
+        self.projects_mock.list.return_value = [
+            fakes.FakeResource(
+                None,
+                copy.deepcopy(identity_fakes.PROJECT),
+                loaded=True,
+            ),
+        ]
+
+        # Get the command object to test
+        self.cmd = unscoped_saml.ListAccessibleProjects(self.app, None)
+
+    def test_accessible_projects_list(self):
+        self.app.client_manager.auth_plugin_name = 'v3unscopedsaml'
+        arglist = []
+        verifylist = []
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        # DisplayCommandBase.take_action() returns two tuples
+        columns, data = self.cmd.take_action(parsed_args)
+
+        self.projects_mock.list.assert_called_with()
+
+        collist = ('ID', 'Domain ID', 'Enabled', 'Name')
+        self.assertEqual(columns, collist)
+        datalist = ((
+            identity_fakes.project_id,
+            identity_fakes.domain_id,
+            True,
+            identity_fakes.project_name,
+        ), )
+        self.assertEqual(tuple(data), datalist)
+
+    def test_accessible_projects_list_wrong_auth(self):
+        auth = identity_fakes.FakeAuth("wrong auth")
+        self.app.client_manager.identity.session.auth = auth
+        arglist = []
+        verifylist = []
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.assertRaises(exceptions.CommandError,
+                          self.cmd.take_action,
+                          parsed_args)
+
+
+class TestDomainList(TestUnscopedSAML):
+
+    def setUp(self):
+        super(TestDomainList, self).setUp()
+
+        self.domains_mock.list.return_value = [
+            fakes.FakeResource(
+                None,
+                copy.deepcopy(identity_fakes.DOMAIN),
+                loaded=True,
+            ),
+        ]
+
+        # Get the command object to test
+        self.cmd = unscoped_saml.ListAccessibleDomains(self.app, None)
+
+    def test_accessible_domains_list(self):
+        self.app.client_manager.auth_plugin_name = 'v3unscopedsaml'
+        arglist = []
+        verifylist = []
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        # DisplayCommandBase.take_action() returns two tuples
+        columns, data = self.cmd.take_action(parsed_args)
+
+        self.domains_mock.list.assert_called_with()
+
+        collist = ('ID', 'Enabled', 'Name', 'Description')
+        self.assertEqual(columns, collist)
+        datalist = ((
+            identity_fakes.domain_id,
+            True,
+            identity_fakes.domain_name,
+            identity_fakes.domain_description,
+        ), )
+        self.assertEqual(tuple(data), datalist)
+
+    def test_accessible_domains_list_wrong_auth(self):
+        auth = identity_fakes.FakeAuth("wrong auth")
+        self.app.client_manager.identity.session.auth = auth
+        arglist = []
+        verifylist = []
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.assertRaises(exceptions.CommandError,
+                          self.cmd.take_action,
+                          parsed_args)