Adds authn/root API endpoint (#1331)

Issues:
Fixes #1330

Problem:
The authn/root API was not available. This API is really weird because its
more like a fire-and-forget API. It provides no kind or selfLink in its
return value.

Analysis:
Had to work around the resource deficiencies. Introduced our own kind
and selfLink values because BIG-IP does not provide them. All methods
except create are invalid.

Tests:
functional
unit

f5/bigip/shared/__init__.py

@@ -16,6 +16,7 @@
 #
 
 from f5.bigip.resource import OrganizingCollection
+from f5.bigip.shared.authn import Authn
 from f5.bigip.shared.authz import Authz
 from f5.bigip.shared.file_transfer import File_Transfer
 from f5.bigip.shared.iapp import Iapp
@@ -28,5 +29,6 @@ def __init__(self, mgmt):
         self._meta_data['allowed_lazy_attributes'] = [
             File_Transfer,
             Iapp,
+            Authn,
             Authz
         ]

f5/bigip/shared/authn.py

@@ -0,0 +1,114 @@
+# coding=utf-8
+#
+#  Copyright 2017 F5 Networks Inc.
+#
+# 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.
+#
+
+
+from f5.bigip.resource import Collection
+from f5.bigip.resource import OrganizingCollection
+from f5.bigip.resource import Resource
+from f5.sdk_exception import UnsupportedMethod
+from f5.sdk_exception import UnsupportedOperation
+from f5.sdk_exception import URICreationCollision
+
+
+class Authn(OrganizingCollection):
+    def __init__(self, shared):
+        super(Authn, self).__init__(shared)
+        self._meta_data['allowed_lazy_attributes'] = [
+            Roots
+        ]
+
+
+class Roots(Collection):
+    def __init__(self, authn):
+        super(Roots, self).__init__(authn)
+        self._meta_data['allowed_lazy_attributes'] = [Root]
+
+    def get_collection(self, **kwargs):
+        raise UnsupportedMethod(
+            "%s does not support get_collection" % self.__class__.__name__
+        )
+
+
+class Root(Resource):
+    def __init__(self, roots):
+        super(Root, self).__init__(roots)
+        self._meta_data['required_json_kind'] = 'shared:authn:authrootitemstate'
+
+        # The required parameters are a little vague. It turns out that the "user"
+        # value that is required is the "link" to the ID
+        self._meta_data['required_creation_parameters'] = {'oldPassword', 'newPassword'}
+
+    def _create(self, **kwargs):
+        """wrapped by `create` override that in subclasses to customize"""
+        if 'uri' in self._meta_data:
+            error = "There was an attempt to assign a new uri to this "\
+                    "resource, the _meta_data['uri'] is %s and it should"\
+                    " not be changed." % (self._meta_data['uri'])
+            raise URICreationCollision(error)
+        self._check_exclusive_parameters(**kwargs)
+        requests_params = self._handle_requests_params(kwargs)
+        self._minimum_one_is_missing(**kwargs)
+        self._check_create_parameters(**kwargs)
+        kwargs = self._check_for_python_keywords(kwargs)
+
+        # Reduce boolean pairs as specified by the meta_data entry below
+        for key1, key2 in self._meta_data['reduction_forcing_pairs']:
+            kwargs = self._reduce_boolean_pair(kwargs, key1, key2)
+
+        # Make convenience variable with short names for this method.
+        _create_uri = self._meta_data['container']._meta_data['uri']
+        session = self._meta_data['bigip']._meta_data['icr_session']
+
+        kwargs = self._prepare_request_json(kwargs)
+
+        # Invoke the REST operation on the device.
+        response = session.post(_create_uri, json=kwargs, **requests_params)
+
+        # Make new instance of self
+        result = self._produce_instance(response)
+        return result
+
+    def _local_update(self, rdict):
+        super(Root, self)._local_update(rdict)
+
+        # This API returns no kind, so we need to make our own
+        self.__dict__.update(dict(kind='shared:authn:authrootitemstate'))
+
+        # This API returns no selfLink, so we need to make our own
+        tmos_version = self._meta_data['bigip']._meta_data['tmos_version']
+        self_link = 'https://localhost/mgmt/shared/authn/root?ver={0}'.format(tmos_version)
+        self.__dict__.update(dict(selfLink=self_link))
+
+    def update(self, **kwargs):
+        raise UnsupportedOperation(
+            "%s does not support update" % self.__class__.__name__
+        )
+
+    def load(self, **kwargs):
+        raise UnsupportedOperation(
+            "%s does not support load" % self.__class__.__name__
+        )
+
+    def modify(self, **kwargs):
+        raise UnsupportedOperation(
+            "%s does not support modify" % self.__class__.__name__
+        )
+
+    def delete(self, **kwargs):
+        raise UnsupportedOperation(
+            "%s does not support delete" % self.__class__.__name__
+        )

f5/bigip/shared/test/functional/test_authn.py

@@ -0,0 +1,56 @@
+# Copyright 2017 F5 Networks Inc.
+#
+# 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 pytest
+
+from distutils.version import LooseVersion
+
+pytestmark = pytest.mark.skipif(
+    LooseVersion(pytest.config.getoption('--release'))
+    < LooseVersion('12.0.0'),
+    reason='Needs v12 TMOS or greater to pass.'
+)
+
+
+@pytest.fixture(scope='function')
+def root_credentials(mgmt_root):
+    result = mgmt_root.shared.authn.roots.root.create(
+        oldPassword='default',
+        newPassword='ChangeMyPassword1234'
+    )
+    yield result
+    mgmt_root.shared.authn.roots.root.create(
+        oldPassword='ChangeMyPassword1234',
+        newPassword='default'
+    )
+
+
+@pytest.mark.skipif(
+    LooseVersion(pytest.config.getoption('--release')) >= LooseVersion('12.1.0'),
+    reason='This fixture requires < 12.1.0.'
+)
+class TestAuthnV12(object):
+    def test_create(self, root_credentials):
+        assert root_credentials.newPassword == 'ChangeMyPassword1234'
+
+
+@pytest.mark.skipif(
+    LooseVersion(pytest.config.getoption('--release')) < LooseVersion('12.1.0'),
+    reason='This fixture requires >= 12.1.0.'
+)
+class TestAuthnPostV12(object):
+    def test_create(self, root_credentials):
+        assert root_credentials.generation == 0

f5/bigip/shared/test/unit/test_authn.py

@@ -0,0 +1,65 @@
+# Copyright 2017 F5 Networks Inc.
+#
+# 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.
+#
+
+from f5.bigip.shared.authn import Root
+from f5.bigip.shared.authn import Roots
+from f5.sdk_exception import MissingRequiredCreationParameter
+from f5.sdk_exception import UnsupportedMethod
+from f5.sdk_exception import UnsupportedOperation
+
+import mock
+import pytest
+
+
+@pytest.fixture
+def FakeAuthnRoot():
+    mo = mock.MagicMock()
+    fake = Root(mo)
+    return fake
+
+
+@pytest.fixture
+def FakeAuthnRoots():
+    mo = mock.MagicMock()
+    fake = Roots(mo)
+    return fake
+
+
+class TestAuthnRoot(object):
+    def test_update_raises(self, FakeAuthnRoot):
+        with pytest.raises(UnsupportedOperation):
+            FakeAuthnRoot.update()
+
+    def test_modify_raises(self, FakeAuthnRoot):
+        with pytest.raises(UnsupportedOperation):
+            FakeAuthnRoot.modify()
+
+    def test_load_raises(self, FakeAuthnRoot):
+        with pytest.raises(UnsupportedOperation):
+            FakeAuthnRoot.load()
+
+    def test_delete_raises(self, FakeAuthnRoot):
+        with pytest.raises(UnsupportedOperation):
+            FakeAuthnRoot.delete()
+
+    def test_create_no_args(self, FakeAuthnRoot):
+        with pytest.raises(MissingRequiredCreationParameter):
+            FakeAuthnRoot.create()
+
+
+class TestAuthnRoots(object):
+    def test_collection_raises(self, FakeAuthnRoots):
+        with pytest.raises(UnsupportedMethod):
+            FakeAuthnRoots.get_collection()