Limit formatting routes when adding resources

By default, routes.mapper.Mapper.resource adds a bunch of formatted
routes that accept anything after a '.'. Our spec says only .xml
and .json are accepted so limit the formatting to those valuse.

This allows identifiers with a '.' in urls. A few tests were added
to the extensions test to prove that .xml and .json are stripped
but other values are not.

Change-Id: Ic888aa5d75050d6b14763c2a787ac8c8d5ab1f69

2 files changed, 37 insertions, 0 deletions

diff --git a/nova/api/openstack/__init__.py b/nova/api/openstack/__init__.py
index d27b018c2..67ea6e1b5 100644
--- a/nova/api/openstack/__init__.py
+++ b/nova/api/openstack/__init__.py
@@ -90,6 +90,15 @@ class APIMapper(routes.Mapper):
             return result[0], result[1]
         return routes.Mapper.routematch(self, url, environ)
 
+    def connect(self, *args, **kargs):
+        # NOTE(vish): Default the format part of a route to only accept json
+        #             and xml so it doesn't eat all characters after a '.'
+        #             in the url.
+        kargs.setdefault('requirements', {})
+        if not kargs['requirements'].get('format'):
+            kargs['requirements']['format'] = 'json|xml'
+        return routes.Mapper.connect(self, *args, **kargs)
+
 
 class ProjectMapper(APIMapper):
     def resource(self, member_name, collection_name, **kwargs):
diff --git a/nova/tests/api/openstack/compute/test_extensions.py b/nova/tests/api/openstack/compute/test_extensions.py
index 466fd3636..ceb90d24c 100644
--- a/nova/tests/api/openstack/compute/test_extensions.py
+++ b/nova/tests/api/openstack/compute/test_extensions.py
@@ -666,3 +666,31 @@ class ExtensionsXMLSerializerTest(test.TestCase):
                     self.assertEqual(link_nodes[i].get(key), value)
 
         xmlutil.validate_schema(root, 'extensions')
+
+
+class ExtensionControllerIdFormatTest(test.TestCase):
+
+    def _bounce_id(self, test_id):
+
+        class BounceController(object):
+            def show(self, req, id):
+                return id
+        res_ext = base_extensions.ResourceExtension('bounce',
+                                                    BounceController())
+        manager = StubExtensionManager(res_ext)
+        app = compute.APIRouter(manager)
+        request = webob.Request.blank("/fake/bounce/%s" % test_id)
+        response = request.get_response(app)
+        return response.body
+
+    def test_id_with_xml_format(self):
+        result = self._bounce_id('foo.xml')
+        self.assertEqual(result, 'foo')
+
+    def test_id_with_json_format(self):
+        result = self._bounce_id('foo.json')
+        self.assertEqual(result, 'foo')
+
+    def test_id_with_bad_format(self):
+        result = self._bounce_id('foo.bad')
+        self.assertEqual(result, 'foo.bad')