Validate display_name/description attributes in API layer

We have string length checks for 'name' and 'description' in
API layer, Add validations for 'display_name' and
'display_description'.

Change-Id: I8c11d155d50800f7099466896abaa0a04f8c49cd

cinder/api/openstack/wsgi.py

@@ -1263,23 +1263,17 @@ class Controller(object):
 
     @staticmethod
     def validate_name_and_description(body):
-        name = body.get('name')
+        for attribute in ['name', 'description',
-        if name is not None:
+                          'display_name', 'display_description']:
-            if isinstance(name, six.string_types):
+            value = body.get(attribute)
-                body['name'] = name.strip()
+            if value is not None:
-            try:
+                if isinstance(value, six.string_types):
-                utils.check_string_length(body['name'], 'Name',
+                    body[attribute] = value.strip()
-                                          min_length=0, max_length=255)
+                try:
-            except exception.InvalidInput as error:
+                    utils.check_string_length(body[attribute], attribute,
-                raise webob.exc.HTTPBadRequest(explanation=error.msg)
+                                              min_length=0, max_length=255)
-
+                except exception.InvalidInput as error:
-        description = body.get('description')
+                    raise webob.exc.HTTPBadRequest(explanation=error.msg)
-        if description is not None:
-            try:
-                utils.check_string_length(description, 'Description',
-                                          min_length=0, max_length=255)
-            except exception.InvalidInput as error:
-                raise webob.exc.HTTPBadRequest(explanation=error.msg)
 
     @staticmethod
     def validate_string_length(value, entity_name, min_length=0,

cinder/tests/unit/api/openstack/test_wsgi.py

@@ -10,6 +10,7 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import ddt
 import inspect
 
 import mock
@@ -820,6 +821,7 @@ class ResponseObjectTest(test.TestCase):
         self.assertEqual({}, robj.serializers)
 
 
+@ddt.data
 class ValidBodyTest(test.TestCase):
 
     def setUp(self):
@@ -855,51 +857,32 @@ class ValidBodyTest(test.TestCase):
                           name, 'Name', min_length=1, max_length=255,
                           remove_whitespaces=False)
 
-    def test_validate_string_length_with_name_contains_white_spaces(
+    @ddt.data('name', 'display_name', 'description', 'display_description')
-            self):
+    def test_validate_name_and_description_with_name_too_long(self, attribute):
-        body = {'name': 'a' * 255 + "  "}
+        body = {attribute: 'a' * 256}
-        self.controller.validate_string_length(
-            body['name'], 'name', min_length=1, max_length=255,
-            remove_whitespaces=True)
-
-    def test_validate_name_and_description_with_name_too_long(self):
-        body = {'name': 'a' * 256}
         self.assertRaises(webob.exc.HTTPBadRequest,
                           self.controller.validate_name_and_description,
                           body)
 
-    def test_validate_name_and_description_with_desc_too_long(self):
+    @ddt.data('name', 'display_name', 'description', 'display_description')
-        body = {'description': 'a' * 256}
+    def test_validate_name_and_description_with_name_as_int(self, attribute):
+        body = {attribute: 1234}
         self.assertRaises(webob.exc.HTTPBadRequest,
                           self.controller.validate_name_and_description,
                           body)
 
-    def test_validate_name_and_description_with_name_as_int(self):
+    @ddt.data('name', 'display_name', 'description', 'display_description')
-        body = {'name': 1234}
+    def test_validate_name_and_description_with_name_zero_length(self,
-        self.assertRaises(webob.exc.HTTPBadRequest,
+                                                                 attribute):
-                          self.controller.validate_name_and_description,
-                          body)
-
-    def test_validate_name_and_description_with_desc_as_int(self):
-        body = {'description': 1234}
-        self.assertRaises(webob.exc.HTTPBadRequest,
-                          self.controller.validate_name_and_description,
-                          body)
-
-    def test_validate_name_and_description_with_name_zero_length(self):
         # NOTE(jdg): We allow zero length names currently, particularly
         # from Nova, changes to this require an API version bump
-        body = {'name': ""}
+        body = {attribute: ""}
         self.controller.validate_name_and_description(body)
-        self.assertEqual('', body['name'])
+        self.assertEqual('', body[attribute])
-
-    def test_validate_name_and_description_with_desc_zero_length(self):
-        body = {'description': ""}
-        self.controller.validate_name_and_description(body)
-        self.assertEqual('', body['description'])
 
+    @ddt.data('name', 'display_name', 'description', 'display_description')
     def test_validate_name_and_description_with_name_contains_white_spaces(
-            self):
+            self, attribute):
-        body = {'name': 'a' * 255 + "  "}
+        body = {attribute: 'a' * 255 + "  "}
         self.controller.validate_name_and_description(body)
-        self.assertEqual('a' * 255, body['name'])
+        self.assertEqual('a' * 255, body[attribute])

releasenotes/notes/check-displayname-displaydescription-123sd5gef91acb12.yaml

@@ -0,0 +1,4 @@
+---
+fixes:
+  - Add 'display_name' and 'display_description' validation
+    for creating/updating snapshot and volume operations.