merged trunk

25 files changed, 484 insertions, 163 deletions

diff --git a/nova/api/openstack/accounts.py b/nova/api/openstack/accounts.py
index e3201b14f..a13a758ab 100644
--- a/nova/api/openstack/accounts.py
+++ b/nova/api/openstack/accounts.py
@@ -47,10 +47,10 @@ class Controller(object):
             raise exception.AdminRequired()
 
     def index(self, req):
-        raise faults.Fault(webob.exc.HTTPNotImplemented())
+        raise webob.exc.HTTPNotImplemented()
 
     def detail(self, req):
-        raise faults.Fault(webob.exc.HTTPNotImplemented())
+        raise webob.exc.HTTPNotImplemented()
 
     def show(self, req, id):
         """Return data about the given account id"""
@@ -65,7 +65,7 @@ class Controller(object):
     def create(self, req, body):
         """We use update with create-or-update semantics
            because the id comes from an external source"""
-        raise faults.Fault(webob.exc.HTTPNotImplemented())
+        raise webob.exc.HTTPNotImplemented()
 
     def update(self, req, id, body):
         """This is really create or update."""
diff --git a/nova/api/openstack/backup_schedules.py b/nova/api/openstack/backup_schedules.py
index 3e95aedf3..7ff0d999e 100644
--- a/nova/api/openstack/backup_schedules.py
+++ b/nova/api/openstack/backup_schedules.py
@@ -19,7 +19,6 @@ import time
 
 from webob import exc
 
-from nova.api.openstack import faults
 from nova.api.openstack import wsgi
 
 
@@ -36,20 +35,20 @@ class Controller(object):
 
     def index(self, req, server_id, **kwargs):
         """ Returns the list of backup schedules for a given instance """
-        return faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
     def show(self, req, server_id, id, **kwargs):
         """ Returns a single backup schedule for a given instance """
-        return faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
     def create(self, req, server_id, **kwargs):
         """ No actual update method required, since the existing API allows
         both create and update through a POST """
-        return faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
     def delete(self, req, server_id, id, **kwargs):
         """ Deletes an existing backup schedule """
-        return faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
 
 def create_resource():
diff --git a/nova/api/openstack/common.py b/nova/api/openstack/common.py
index 8e12ce0c0..57031ebf1 100644
--- a/nova/api/openstack/common.py
+++ b/nova/api/openstack/common.py
@@ -53,10 +53,10 @@ def get_pagination_params(request):
             params[param] = int(request.GET[param])
         except ValueError:
             msg = _('%s param must be an integer') % param
-            raise webob.exc.HTTPBadRequest(msg)
+            raise webob.exc.HTTPBadRequest(explanation=msg)
         if params[param] < 0:
             msg = _('%s param must be positive') % param
-            raise webob.exc.HTTPBadRequest(msg)
+            raise webob.exc.HTTPBadRequest(explanation=msg)
 
     return params
 
@@ -77,18 +77,22 @@ def limited(items, request, max_limit=FLAGS.osapi_max_limit):
     try:
         offset = int(request.GET.get('offset', 0))
     except ValueError:
-        raise webob.exc.HTTPBadRequest(_('offset param must be an integer'))
+        msg = _('offset param must be an integer')
+        raise webob.exc.HTTPBadRequest(explanation=msg)
 
     try:
         limit = int(request.GET.get('limit', max_limit))
     except ValueError:
-        raise webob.exc.HTTPBadRequest(_('limit param must be an integer'))
+        msg = _('limit param must be an integer')
+        raise webob.exc.HTTPBadRequest(explanation=msg)
 
     if limit < 0:
-        raise webob.exc.HTTPBadRequest(_('limit param must be positive'))
+        msg = _('limit param must be positive')
+        raise webob.exc.HTTPBadRequest(explanation=msg)
 
     if offset < 0:
-        raise webob.exc.HTTPBadRequest(_('offset param must be positive'))
+        msg = _('offset param must be positive')
+        raise webob.exc.HTTPBadRequest(explanation=msg)
 
     limit = min(max_limit, limit or max_limit)
     range_end = offset + limit
@@ -111,7 +115,8 @@ def limited_by_marker(items, request, max_limit=FLAGS.osapi_max_limit):
                 start_index = i + 1
                 break
         if start_index < 0:
-            raise webob.exc.HTTPBadRequest(_('marker [%s] not found' % marker))
+            msg = _('marker [%s] not found') % marker
+            raise webob.exc.HTTPBadRequest(explanation=msg)
     range_end = start_index + limit
     return items[start_index:range_end]
 
diff --git a/nova/api/openstack/consoles.py b/nova/api/openstack/consoles.py
index 7a43fba96..d2655acfa 100644
--- a/nova/api/openstack/consoles.py
+++ b/nova/api/openstack/consoles.py
@@ -16,10 +16,10 @@
 #    under the License.
 
 from webob import exc
+import webob
 
 from nova import console
 from nova import exception
-from nova.api.openstack import faults
 from nova.api.openstack import wsgi
 
 
@@ -71,12 +71,12 @@ class Controller(object):
                                         int(server_id),
                                         int(id))
         except exception.NotFound:
-            return faults.Fault(exc.HTTPNotFound())
+            raise exc.HTTPNotFound()
         return _translate_detail_keys(console)
 
     def update(self, req, server_id, id):
         """You can't update a console"""
-        raise faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
     def delete(self, req, server_id, id):
         """Deletes a console"""
@@ -85,8 +85,8 @@ class Controller(object):
                                             int(server_id),
                                             int(id))
         except exception.NotFound:
-            return faults.Fault(exc.HTTPNotFound())
-        return exc.HTTPAccepted()
+            raise exc.HTTPNotFound()
+        return webob.Response(status_int=202)
 
 
 def create_resource():
diff --git a/nova/api/openstack/contrib/multinic.py b/nova/api/openstack/contrib/multinic.py
index 841061721..da8dcee5d 100644
--- a/nova/api/openstack/contrib/multinic.py
+++ b/nova/api/openstack/contrib/multinic.py
@@ -16,6 +16,7 @@
 """The multinic extension."""
 
 from webob import exc
+import webob
 
 from nova import compute
 from nova import log as logging
@@ -103,7 +104,7 @@ class Multinic(extensions.ExtensionDescriptor):
         except Exception, e:
             LOG.exception(_("Error in addFixedIp %s"), e)
             return faults.Fault(exc.HTTPBadRequest())
-        return exc.HTTPAccepted()
+        return webob.Response(status_int=202)
 
     def _remove_fixed_ip(self, input_dict, req, id):
         """Removes an IP from an instance."""
@@ -122,4 +123,4 @@ class Multinic(extensions.ExtensionDescriptor):
         except Exception, e:
             LOG.exception(_("Error in removeFixedIp %s"), e)
             return faults.Fault(exc.HTTPBadRequest())
-        return exc.HTTPAccepted()
+        return webob.Response(status_int=202)
diff --git a/nova/api/openstack/contrib/volumes.py b/nova/api/openstack/contrib/volumes.py
index e5e2c5b50..827e36097 100644
--- a/nova/api/openstack/contrib/volumes.py
+++ b/nova/api/openstack/contrib/volumes.py
@@ -16,6 +16,7 @@
 """The volumes extension."""
 
 from webob import exc
+import webob
 
 from nova import compute
 from nova import exception
@@ -104,7 +105,7 @@ class VolumeController(object):
             self.volume_api.delete(context, volume_id=id)
         except exception.NotFound:
             return faults.Fault(exc.HTTPNotFound())
-        return exc.HTTPAccepted()
+        return webob.Response(status_int=202)
 
     def index(self, req):
         """Returns a summary list of volumes."""
@@ -279,7 +280,7 @@ class VolumeAttachmentController(object):
         self.compute_api.detach_volume(context,
                                        volume_id=volume_id)
 
-        return exc.HTTPAccepted()
+        return webob.Response(status_int=202)
 
     def _items(self, req, server_id, entity_maker):
         """Returns a list of attachments, transformed through entity_maker."""
diff --git a/nova/api/openstack/create_instance_helper.py b/nova/api/openstack/create_instance_helper.py
index 2654e3c40..7249f1261 100644
--- a/nova/api/openstack/create_instance_helper.py
+++ b/nova/api/openstack/create_instance_helper.py
@@ -28,7 +28,6 @@ from nova import quota
 from nova import utils
 
 from nova.compute import instance_types
-from nova.api.openstack import faults
 from nova.api.openstack import wsgi
 from nova.auth import manager as auth_manager
 
@@ -70,7 +69,7 @@ class CreateInstanceHelper(object):
         return type from this method is left to the caller.
         """
         if not body:
-            raise faults.Fault(exc.HTTPUnprocessableEntity())
+            raise exc.HTTPUnprocessableEntity()
 
         context = req.environ['nova.context']
 
@@ -94,7 +93,7 @@ class CreateInstanceHelper(object):
         except Exception, e:
             msg = _("Cannot find requested image %(image_href)s: %(e)s" %
                                                                     locals())
-            raise faults.Fault(exc.HTTPBadRequest(explanation=msg))
+            raise exc.HTTPBadRequest(explanation=msg)
 
         personality = body['server'].get('personality')
 
@@ -102,7 +101,11 @@ class CreateInstanceHelper(object):
         if personality:
             injected_files = self._get_injected_files(personality)
 
-        flavor_id = self.controller._flavor_id_from_req_data(body)
+        try:
+            flavor_id = self.controller._flavor_id_from_req_data(body)
+        except ValueError as error:
+            msg = _("Invalid flavorRef provided.")
+            raise exc.HTTPBadRequest(explanation=msg)
 
         if not 'name' in body['server']:
             msg = _("Server name is not defined")
@@ -153,8 +156,10 @@ class CreateInstanceHelper(object):
             self._handle_quota_error(error)
         except exception.ImageNotFound as error:
             msg = _("Can not find requested image")
-            raise faults.Fault(exc.HTTPBadRequest(explanation=msg))
-
+            raise exc.HTTPBadRequest(explanation=msg)
+        except exception.FlavorNotFound as error:
+            msg = _("Invalid flavorRef provided.")
+            raise exc.HTTPBadRequest(explanation=msg)
         # Let the caller deal with unhandled exceptions.
 
     def _handle_quota_error(self, error):
diff --git a/nova/api/openstack/extensions.py b/nova/api/openstack/extensions.py
index da06ecd15..cc889703e 100644
--- a/nova/api/openstack/extensions.py
+++ b/nova/api/openstack/extensions.py
@@ -23,6 +23,7 @@ import sys
 import routes
 import webob.dec
 import webob.exc
+from xml.etree import ElementTree
 
 from nova import exception
 from nova import flags
@@ -194,7 +195,7 @@ class ExtensionsResource(wsgi.Resource):
     def show(self, req, id):
         # NOTE(dprince): the extensions alias is used as the 'id' for show
         ext = self.extension_manager.extensions[id]
-        return self._translate(ext)
+        return dict(extension=self._translate(ext))
 
     def delete(self, req, id):
         raise faults.Fault(webob.exc.HTTPNotFound())
@@ -258,15 +259,18 @@ class ExtensionMiddleware(base_wsgi.Middleware):
 
         mapper = routes.Mapper()
 
+        serializer = wsgi.ResponseSerializer(
+            {'application/xml': ExtensionsXMLSerializer()})
         # extended resources
         for resource in ext_mgr.get_resources():
             LOG.debug(_('Extended resource: %s'),
                         resource.collection)
             mapper.resource(resource.collection, resource.collection,
-                            controller=wsgi.Resource(resource.controller),
-                            collection=resource.collection_actions,
-                            member=resource.member_actions,
-                            parent_resource=resource.parent)
+                controller=wsgi.Resource(
+                    resource.controller, serializer=serializer),
+                collection=resource.collection_actions,
+                member=resource.member_actions,
+                parent_resource=resource.parent)
 
         # extended actions
         action_resources = self._action_ext_resources(application, ext_mgr,
@@ -462,3 +466,40 @@ class ResourceExtension(object):
         self.parent = parent
         self.collection_actions = collection_actions
         self.member_actions = member_actions
+
+
+class ExtensionsXMLSerializer(wsgi.XMLDictSerializer):
+
+    def show(self, ext_dict):
+        ext = self._create_ext_elem(ext_dict['extension'])
+        return self._to_xml(ext)
+
+    def index(self, exts_dict):
+        exts = ElementTree.Element('extensions')
+        for ext_dict in exts_dict['extensions']:
+            exts.append(self._create_ext_elem(ext_dict))
+        return self._to_xml(exts)
+
+    def _create_ext_elem(self, ext_dict):
+        """Create an extension xml element from a dict."""
+        ext_elem = ElementTree.Element('extension')
+        ext_elem.set('name', ext_dict['name'])
+        ext_elem.set('namespace', ext_dict['namespace'])
+        ext_elem.set('alias', ext_dict['alias'])
+        ext_elem.set('updated', ext_dict['updated'])
+        desc = ElementTree.Element('description')
+        desc.text = ext_dict['description']
+        ext_elem.append(desc)
+        for link in ext_dict.get('links', []):
+            elem = ElementTree.Element('atom:link')
+            elem.set('rel', link['rel'])
+            elem.set('href', link['href'])
+            elem.set('type', link['type'])
+            ext_elem.append(elem)
+        return ext_elem
+
+    def _to_xml(self, root):
+        """Convert the xml tree object to an xml string."""
+        root.set('xmlns', wsgi.XMLNS_V11)
+        root.set('xmlns:atom', wsgi.XMLNS_ATOM)
+        return ElementTree.tostring(root, encoding='UTF-8')
diff --git a/nova/api/openstack/faults.py b/nova/api/openstack/faults.py
index b9a23c126..24cde69e4 100644
--- a/nova/api/openstack/faults.py
+++ b/nova/api/openstack/faults.py
@@ -40,6 +40,7 @@ class Fault(webob.exc.HTTPException):
     def __init__(self, exception):
         """Create a Fault for the given webob.exc.exception."""
         self.wrapped_exc = exception
+        self.status_int = exception.status_int
 
     @webob.dec.wsgify(RequestClass=wsgi.Request)
     def __call__(self, req):
diff --git a/nova/api/openstack/flavors.py b/nova/api/openstack/flavors.py
index 6fab13147..b4bda68d4 100644
--- a/nova/api/openstack/flavors.py
+++ b/nova/api/openstack/flavors.py
@@ -16,6 +16,7 @@
 #    under the License.
 
 import webob
+import xml.dom.minidom as minidom
 
 from nova import db
 from nova import exception
@@ -74,19 +75,65 @@ class ControllerV11(Controller):
         return views.flavors.ViewBuilderV11(base_url)
 
 
+class FlavorXMLSerializer(wsgi.XMLDictSerializer):
+
+    def __init__(self):
+        super(FlavorXMLSerializer, self).__init__(xmlns=wsgi.XMLNS_V11)
+
+    def _flavor_to_xml(self, xml_doc, flavor, detailed):
+        flavor_node = xml_doc.createElement('flavor')
+        flavor_node.setAttribute('id', str(flavor['id']))
+        flavor_node.setAttribute('name', flavor['name'])
+
+        if detailed:
+            flavor_node.setAttribute('ram', str(flavor['ram']))
+            flavor_node.setAttribute('disk', str(flavor['disk']))
+
+        link_nodes = self._create_link_nodes(xml_doc, flavor['links'])
+        for link_node in link_nodes:
+            flavor_node.appendChild(link_node)
+        return flavor_node
+
+    def _flavors_list_to_xml(self, xml_doc, flavors, detailed):
+        container_node = xml_doc.createElement('flavors')
+
+        for flavor in flavors:
+            item_node = self._flavor_to_xml(xml_doc, flavor, detailed)
+            container_node.appendChild(item_node)
+        return container_node
+
+    def show(self, flavor_container):
+        xml_doc = minidom.Document()
+        flavor = flavor_container['flavor']
+        node = self._flavor_to_xml(xml_doc, flavor, True)
+        return self.to_xml_string(node, True)
+
+    def detail(self, flavors_container):
+        xml_doc = minidom.Document()
+        flavors = flavors_container['flavors']
+        node = self._flavors_list_to_xml(xml_doc, flavors, True)
+        return self.to_xml_string(node, True)
+
+    def index(self, flavors_container):
+        xml_doc = minidom.Document()
+        flavors = flavors_container['flavors']
+        node = self._flavors_list_to_xml(xml_doc, flavors, False)
+        return self.to_xml_string(node, True)
+
+
 def create_resource(version='1.0'):
     controller = {
         '1.0': ControllerV10,
         '1.1': ControllerV11,
     }[version]()
 
-    xmlns = {
-        '1.0': wsgi.XMLNS_V10,
-        '1.1': wsgi.XMLNS_V11,
+    xml_serializer = {
+        '1.0': wsgi.XMLDictSerializer(xmlns=wsgi.XMLNS_V10),
+        '1.1': FlavorXMLSerializer(),
     }[version]
 
     body_serializers = {
-        'application/xml': wsgi.XMLDictSerializer(xmlns=xmlns),
+        'application/xml': xml_serializer,
     }
 
     serializer = wsgi.ResponseSerializer(body_serializers)
diff --git a/nova/api/openstack/image_metadata.py b/nova/api/openstack/image_metadata.py
index 4f33844fa..c0fc8c09b 100644
--- a/nova/api/openstack/image_metadata.py
+++ b/nova/api/openstack/image_metadata.py
@@ -22,7 +22,6 @@ from nova import flags
 from nova import image
 from nova import quota
 from nova import utils
-from nova.api.openstack import faults
 from nova.api.openstack import wsgi
 
 
@@ -62,7 +61,7 @@ class Controller(object):
         if id in metadata:
             return {'meta': {id: metadata[id]}}
         else:
-            return faults.Fault(exc.HTTPNotFound())
+            raise exc.HTTPNotFound()
 
     def create(self, req, image_id, body):
         context = req.environ['nova.context']
@@ -105,7 +104,7 @@ class Controller(object):
         img = self.image_service.show(context, image_id)
         metadata = self._get_metadata(context, image_id)
         if not id in metadata:
-            return faults.Fault(exc.HTTPNotFound())
+            raise exc.HTTPNotFound()
         metadata.pop(id)
         img['properties'] = metadata
         self.image_service.update(context, image_id, img, None)
diff --git a/nova/api/openstack/images.py b/nova/api/openstack/images.py
index d0317583e..30e4fd389 100644
--- a/nova/api/openstack/images.py
+++ b/nova/api/openstack/images.py
@@ -25,7 +25,6 @@ from nova import flags
 import nova.image
 from nova import log
 from nova.api.openstack import common
-from nova.api.openstack import faults
 from nova.api.openstack import image_metadata
 from nova.api.openstack import servers
 from nova.api.openstack.views import images as images_view
@@ -35,7 +34,13 @@ from nova.api.openstack import wsgi
 LOG = log.getLogger('nova.api.openstack.images')
 FLAGS = flags.FLAGS
 
-SUPPORTED_FILTERS = ['name', 'status']
+SUPPORTED_FILTERS = {
+    'name': 'name',
+    'status': 'status',
+    'changes-since': 'changes-since',
+    'server': 'property-instance_ref',
+    'type': 'property-image_type',
+}
 
 
 class Controller(object):
@@ -62,8 +67,9 @@ class Controller(object):
         filters = {}
         for param in req.str_params:
             if param in SUPPORTED_FILTERS or param.startswith('property-'):
-                filters[param] = req.str_params.get(param)
-
+                # map filter name or carry through if property-*
+                filter_name = SUPPORTED_FILTERS.get(param, param)
+                filters[filter_name] = req.str_params.get(param)
         return filters
 
     def show(self, req, id):
@@ -78,7 +84,7 @@ class Controller(object):
             image = self._image_service.show(context, id)
         except (exception.NotFound, exception.InvalidImageRef):
             explanation = _("Image not found.")
-            raise faults.Fault(webob.exc.HTTPNotFound(explanation=explanation))
+            raise webob.exc.HTTPNotFound(explanation=explanation)
 
         return dict(image=self.get_builder(req).build(image, detail=True))
 
diff --git a/nova/api/openstack/ips.py b/nova/api/openstack/ips.py
index 1ebfdb831..2996b032d 100644
--- a/nova/api/openstack/ips.py
+++ b/nova/api/openstack/ips.py
@@ -20,7 +20,6 @@ import time
 from webob import exc
 
 import nova
-from nova.api.openstack import faults
 import nova.api.openstack.views.addresses
 from nova.api.openstack import wsgi
 from nova import db
@@ -37,14 +36,14 @@ class Controller(object):
             instance = self.compute_api.get(
                 req.environ['nova.context'], server_id)
         except nova.exception.NotFound:
-            return faults.Fault(exc.HTTPNotFound())
+            raise exc.HTTPNotFound()
         return instance
 
     def create(self, req, server_id, body):
-        return faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
     def delete(self, req, server_id, id):
-        return faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
 
 class ControllerV10(Controller):
@@ -63,7 +62,7 @@ class ControllerV10(Controller):
             view = builder.build_public_parts(instance)
         else:
             msg = _("Only private and public networks available")
-            return faults.Fault(exc.HTTPNotFound(explanation=msg))
+            raise exc.HTTPNotFound(explanation=msg)
 
         return {id: view}
 
@@ -86,7 +85,7 @@ class ControllerV11(Controller):
 
         if network is None:
             msg = _("Instance is not a member of specified network")
-            return faults.Fault(exc.HTTPNotFound(explanation=msg))
+            raise exc.HTTPNotFound(explanation=msg)
 
         return network
 
diff --git a/nova/api/openstack/limits.py b/nova/api/openstack/limits.py
index bc76547d8..86afa3b62 100644
--- a/nova/api/openstack/limits.py
+++ b/nova/api/openstack/limits.py
@@ -25,6 +25,7 @@ import re
 import time
 import urllib
 import webob.exc
+from xml.dom import minidom
 
 from collections import defaultdict
 
@@ -76,6 +77,58 @@ class LimitsControllerV11(LimitsController):
         return limits_views.ViewBuilderV11()
 
 
+class LimitsXMLSerializer(wsgi.XMLDictSerializer):
+
+    xmlns = wsgi.XMLNS_V11
+
+    def __init__(self):
+        pass
+
+    def _create_rates_node(self, xml_doc, rates):
+        rates_node = xml_doc.createElement('rates')
+        for rate in rates:
+            rate_node = xml_doc.createElement('rate')
+            rate_node.setAttribute('uri', rate['uri'])
+            rate_node.setAttribute('regex', rate['regex'])
+
+            for limit in rate['limit']:
+                limit_node = xml_doc.createElement('limit')
+                limit_node.setAttribute('value', str(limit['value']))
+                limit_node.setAttribute('verb', limit['verb'])
+                limit_node.setAttribute('remaining', str(limit['remaining']))
+                limit_node.setAttribute('unit', limit['unit'])
+                limit_node.setAttribute('next-available',
+                                        str(limit['next-available']))
+                rate_node.appendChild(limit_node)
+
+            rates_node.appendChild(rate_node)
+        return rates_node
+
+    def _create_absolute_node(self, xml_doc, absolutes):
+        absolute_node = xml_doc.createElement('absolute')
+        for key, value in absolutes.iteritems():
+            limit_node = xml_doc.createElement('limit')
+            limit_node.setAttribute('name', key)
+            limit_node.setAttribute('value', str(value))
+            absolute_node.appendChild(limit_node)
+        return absolute_node
+
+    def _limits_to_xml(self, xml_doc, limits):
+        limits_node = xml_doc.createElement('limits')
+        rates_node = self._create_rates_node(xml_doc, limits['rate'])
+        limits_node.appendChild(rates_node)
+
+        absolute_node = self._create_absolute_node(xml_doc, limits['absolute'])
+        limits_node.appendChild(absolute_node)
+
+        return limits_node
+
+    def index(self, limits_dict):
+        xml_doc = minidom.Document()
+        node = self._limits_to_xml(xml_doc, limits_dict['limits'])
+        return self.to_xml_string(node, False)
+
+
 def create_resource(version='1.0'):
     controller = {
         '1.0': LimitsControllerV10,
@@ -97,9 +150,13 @@ def create_resource(version='1.0'):
         },
     }
 
+    xml_serializer = {
+        '1.0': wsgi.XMLDictSerializer(xmlns=xmlns, metadata=metadata),
+        '1.1': LimitsXMLSerializer(),
+    }[version]
+
     body_serializers = {
-        'application/xml': wsgi.XMLDictSerializer(xmlns=xmlns,
-                                                  metadata=metadata),
+        'application/xml': xml_serializer,
     }
 
     serializer = wsgi.ResponseSerializer(body_serializers)
diff --git a/nova/api/openstack/server_metadata.py b/nova/api/openstack/server_metadata.py
index 3b9169f81..d4f42bbf5 100644
--- a/nova/api/openstack/server_metadata.py
+++ b/nova/api/openstack/server_metadata.py
@@ -18,7 +18,6 @@
 from webob import exc
 
 from nova import compute
-from nova.api.openstack import faults
 from nova.api.openstack import wsgi
 from nova import exception
 from nova import quota
diff --git a/nova/api/openstack/servers.py b/nova/api/openstack/servers.py
index 93f8e832c..7bef1d9b2 100644
--- a/nova/api/openstack/servers.py
+++ b/nova/api/openstack/servers.py
@@ -17,6 +17,7 @@ import base64
 import traceback
 
 from webob import exc
+import webob
 
 from nova import compute
 from nova import db
@@ -26,7 +27,6 @@ from nova import log as logging
 from nova import utils
 from nova.api.openstack import common
 from nova.api.openstack import create_instance_helper as helper
-from nova.api.openstack import faults
 import nova.api.openstack.views.addresses
 import nova.api.openstack.views.flavors
 import nova.api.openstack.views.images
@@ -101,17 +101,14 @@ class Controller(object):
                 req.environ['nova.context'], id)
             return self._build_view(req, instance, is_detail=True)
         except exception.NotFound:
-            return faults.Fault(exc.HTTPNotFound())
+            raise exc.HTTPNotFound()
 
     def create(self, req, body):
         """ Creates a new server for a given user """
         extra_values = None
         result = None
-        try:
-            extra_values, instances = self.helper.create_instance(
-                    req, body, self.compute_api.create)
-        except faults.Fault, f:
-            return f
+        extra_values, instances = self.helper.create_instance(
+                req, body, self.compute_api.create)
 
         # We can only return 1 instance via the API, if we happen to
         # build more than one...  instances is a list, so we'll just
@@ -131,7 +128,7 @@ class Controller(object):
             raise exc.HTTPUnprocessableEntity()
 
         if not body:
-            return faults.Fault(exc.HTTPUnprocessableEntity())
+            raise exc.HTTPUnprocessableEntity()
 
         ctxt = req.environ['nova.context']
         update_dict = {}
@@ -146,7 +143,7 @@ class Controller(object):
         try:
             self.compute_api.update(ctxt, id, **update_dict)
         except exception.NotFound:
-            return faults.Fault(exc.HTTPNotFound())
+            raise exc.HTTPNotFound()
 
         return exc.HTTPNoContent()
 
@@ -170,7 +167,7 @@ class Controller(object):
         for key in actions.keys():
             if key in body:
                 return actions[key](body, req, id)
-        return faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
     def _action_change_password(self, input_dict, req, id):
         return exc.HTTPNotImplemented()
@@ -180,7 +177,7 @@ class Controller(object):
             self.compute_api.confirm_resize(req.environ['nova.context'], id)
         except Exception, e:
             LOG.exception(_("Error in confirm-resize %s"), e)
-            return faults.Fault(exc.HTTPBadRequest())
+            raise exc.HTTPBadRequest()
         return exc.HTTPNoContent()
 
     def _action_revert_resize(self, input_dict, req, id):
@@ -188,8 +185,8 @@ class Controller(object):
             self.compute_api.revert_resize(req.environ['nova.context'], id)
         except Exception, e:
             LOG.exception(_("Error in revert-resize %s"), e)
-            return faults.Fault(exc.HTTPBadRequest())
-        return exc.HTTPAccepted()
+            raise exc.HTTPBadRequest()
+        return webob.Response(status_int=202)
 
     def _action_resize(self, input_dict, req, id):
         return exc.HTTPNotImplemented()
@@ -199,23 +196,23 @@ class Controller(object):
             reboot_type = input_dict['reboot']['type']
         else:
             LOG.exception(_("Missing argument 'type' for reboot"))
-            return faults.Fault(exc.HTTPUnprocessableEntity())
+            raise exc.HTTPUnprocessableEntity()
         try:
             # TODO(gundlach): pass reboot_type, support soft reboot in
             # virt driver
             self.compute_api.reboot(req.environ['nova.context'], id)
         except Exception, e:
             LOG.exception(_("Error in reboot %s"), e)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     def _action_migrate(self, input_dict, req, id):
         try:
             self.compute_api.resize(req.environ['nova.context'], id)
         except Exception, e:
             LOG.exception(_("Error in migrate %s"), e)
-            return faults.Fault(exc.HTTPBadRequest())
-        return exc.HTTPAccepted()
+            raise exc.HTTPBadRequest()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def lock(self, req, id):
@@ -230,8 +227,8 @@ class Controller(object):
         except:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::lock %s"), readable)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def unlock(self, req, id):
@@ -246,8 +243,8 @@ class Controller(object):
         except:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::unlock %s"), readable)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def get_lock(self, req, id):
@@ -261,8 +258,8 @@ class Controller(object):
         except:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::get_lock %s"), readable)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def reset_network(self, req, id, body):
@@ -276,8 +273,8 @@ class Controller(object):
         except:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::reset_network %s"), readable)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def inject_network_info(self, req, id, body):
@@ -291,8 +288,8 @@ class Controller(object):
         except:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::inject_network_info %s"), readable)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def pause(self, req, id, body):
@@ -303,8 +300,8 @@ class Controller(object):
         except:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::pause %s"), readable)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def unpause(self, req, id, body):
@@ -315,8 +312,8 @@ class Controller(object):
         except:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::unpause %s"), readable)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def suspend(self, req, id, body):
@@ -327,8 +324,8 @@ class Controller(object):
         except:
             readable = traceback.format_exc()
             LOG.exception(_("compute.api::suspend %s"), readable)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def resume(self, req, id, body):
@@ -339,8 +336,8 @@ class Controller(object):
         except:
             readable = traceback.format_exc()
             LOG.exception(_("compute.api::resume %s"), readable)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def rescue(self, req, id):
@@ -351,8 +348,8 @@ class Controller(object):
         except:
             readable = traceback.format_exc()
             LOG.exception(_("compute.api::rescue %s"), readable)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def unrescue(self, req, id):
@@ -363,8 +360,8 @@ class Controller(object):
         except:
             readable = traceback.format_exc()
             LOG.exception(_("compute.api::unrescue %s"), readable)
-            return faults.Fault(exc.HTTPUnprocessableEntity())
-        return exc.HTTPAccepted()
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def get_ajax_console(self, req, id):
@@ -373,8 +370,8 @@ class Controller(object):
             self.compute_api.get_ajax_console(req.environ['nova.context'],
                 int(id))
         except exception.NotFound:
-            return faults.Fault(exc.HTTPNotFound())
-        return exc.HTTPAccepted()
+            raise exc.HTTPNotFound()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def get_vnc_console(self, req, id):
@@ -383,8 +380,8 @@ class Controller(object):
             self.compute_api.get_vnc_console(req.environ['nova.context'],
                                              int(id))
         except exception.NotFound:
-            return faults.Fault(exc.HTTPNotFound())
-        return exc.HTTPAccepted()
+            raise exc.HTTPNotFound()
+        return webob.Response(status_int=202)
 
     @scheduler_api.redirect_handler
     def diagnostics(self, req, id):
@@ -415,8 +412,8 @@ class ControllerV10(Controller):
         try:
             self.compute_api.delete(req.environ['nova.context'], id)
         except exception.NotFound:
-            return faults.Fault(exc.HTTPNotFound())
-        return exc.HTTPAccepted()
+            raise exc.HTTPNotFound()
+        return webob.Response(status_int=202)
 
     def _image_ref_from_req_data(self, data):
         return data['server']['imageId']
@@ -439,18 +436,14 @@ class ControllerV10(Controller):
 
     def _action_resize(self, input_dict, req, id):
         """ Resizes a given instance to the flavor size requested """
-        try:
-            if 'resize' in input_dict and 'flavorId' in input_dict['resize']:
-                flavor_id = input_dict['resize']['flavorId']
-                self.compute_api.resize(req.environ['nova.context'], id,
-                        flavor_id)
-            else:
-                LOG.exception(_("Missing 'flavorId' argument for resize"))
-                return faults.Fault(exc.HTTPUnprocessableEntity())
-        except Exception, e:
-            LOG.exception(_("Error in resize %s"), e)
-            return faults.Fault(exc.HTTPBadRequest())
-        return exc.HTTPAccepted()
+        if 'resize' in input_dict and 'flavorId' in input_dict['resize']:
+            flavor_id = input_dict['resize']['flavorId']
+            self.compute_api.resize(req.environ['nova.context'], id,
+                    flavor_id)
+        else:
+            LOG.exception(_("Missing 'flavorId' argument for resize"))
+            raise exc.HTTPUnprocessableEntity()
+        return webob.Response(status_int=202)
 
     def _action_rebuild(self, info, request, instance_id):
         context = request.environ['nova.context']
@@ -461,18 +454,16 @@ class ControllerV10(Controller):
         except (KeyError, TypeError):
             msg = _("Could not parse imageId from request.")
             LOG.debug(msg)
-            return faults.Fault(exc.HTTPBadRequest(explanation=msg))
+            raise exc.HTTPBadRequest(explanation=msg)
 
         try:
             self.compute_api.rebuild(context, instance_id, image_id)
         except exception.BuildInProgress:
             msg = _("Instance %d is currently being rebuilt.") % instance_id
             LOG.debug(msg)
-            return faults.Fault(exc.HTTPConflict(explanation=msg))
+            raise exc.HTTPConflict(explanation=msg)
 
-        response = exc.HTTPAccepted()
-        response.empty_body = True
-        return response
+        return webob.Response(status_int=202)
 
     def _get_server_admin_password(self, server):
         """ Determine the admin password for a server on creation """
@@ -487,7 +478,7 @@ class ControllerV11(Controller):
         try:
             self.compute_api.delete(req.environ['nova.context'], id)
         except exception.NotFound:
-            return faults.Fault(exc.HTTPNotFound())
+            raise exc.HTTPNotFound()
 
     def _image_ref_from_req_data(self, data):
         return data['server']['imageRef']
@@ -519,7 +510,7 @@ class ControllerV11(Controller):
             msg = _("Invalid adminPass")
             return exc.HTTPBadRequest(explanation=msg)
         self.compute_api.set_admin_password(context, id, password)
-        return exc.HTTPAccepted()
+        return webob.Response(status_int=202)
 
     def _limit_items(self, items, req):
         return common.limited_by_marker(items, req)
@@ -531,7 +522,7 @@ class ControllerV11(Controller):
         except AttributeError as ex:
             msg = _("Unable to parse metadata key/value pairs.")
             LOG.debug(msg)
-            raise faults.Fault(exc.HTTPBadRequest(explanation=msg))
+            raise exc.HTTPBadRequest(explanation=msg)
 
     def _decode_personalities(self, personalities):
         """Decode the Base64-encoded personalities."""
@@ -542,14 +533,14 @@ class ControllerV11(Controller):
             except (KeyError, TypeError):
                 msg = _("Unable to parse personality path/contents.")
                 LOG.info(msg)
-                raise faults.Fault(exc.HTTPBadRequest(explanation=msg))
+                raise exc.HTTPBadRequest(explanation=msg)
 
             try:
                 personality["contents"] = base64.b64decode(contents)
             except TypeError:
                 msg = _("Personality content could not be Base64 decoded.")
                 LOG.info(msg)
-                raise faults.Fault(exc.HTTPBadRequest(explanation=msg))
+                raise exc.HTTPBadRequest(explanation=msg)
 
     def _action_resize(self, input_dict, req, id):
         """ Resizes a given instance to the flavor size requested """
@@ -561,11 +552,11 @@ class ControllerV11(Controller):
                         flavor_id)
             else:
                 LOG.exception(_("Missing 'flavorRef' argument for resize"))
-                return faults.Fault(exc.HTTPUnprocessableEntity())
+                raise exc.HTTPUnprocessableEntity()
         except Exception, e:
             LOG.exception(_("Error in resize %s"), e)
-            return faults.Fault(exc.HTTPBadRequest())
-        return exc.HTTPAccepted()
+            raise exc.HTTPBadRequest()
+        return webob.Response(status_int=202)
 
     def _action_rebuild(self, info, request, instance_id):
         context = request.environ['nova.context']
@@ -576,7 +567,7 @@ class ControllerV11(Controller):
         except (KeyError, TypeError):
             msg = _("Could not parse imageRef from request.")
             LOG.debug(msg)
-            return faults.Fault(exc.HTTPBadRequest(explanation=msg))
+            raise exc.HTTPBadRequest(explanation=msg)
 
         personalities = info["rebuild"].get("personality", [])
         metadata = info["rebuild"].get("metadata")
@@ -592,11 +583,9 @@ class ControllerV11(Controller):
         except exception.BuildInProgress:
             msg = _("Instance %d is currently being rebuilt.") % instance_id
             LOG.debug(msg)
-            return faults.Fault(exc.HTTPConflict(explanation=msg))
+            raise exc.HTTPConflict(explanation=msg)
 
-        response = exc.HTTPAccepted()
-        response.empty_body = True
-        return response
+        return webob.Response(status_int=202)
 
     def get_default_xmlns(self, req):
         return common.XML_NS_V11
diff --git a/nova/api/openstack/shared_ip_groups.py b/nova/api/openstack/shared_ip_groups.py
index cf2ddbabb..54d0a8334 100644
--- a/nova/api/openstack/shared_ip_groups.py
+++ b/nova/api/openstack/shared_ip_groups.py
@@ -17,7 +17,6 @@
 
 from webob import exc
 
-from nova.api.openstack import faults
 from nova.api.openstack import wsgi
 
 
@@ -26,27 +25,27 @@ class Controller(object):
 
     def index(self, req, **kwargs):
         """ Returns a list of Shared IP Groups for the user """
-        raise faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
     def show(self, req, id, **kwargs):
         """ Shows in-depth information on a specific Shared IP Group """
-        raise faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
     def update(self, req, id, **kwargs):
         """ You can't update a Shared IP Group """
-        raise faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
     def delete(self, req, id, **kwargs):
         """ Deletes a Shared IP Group """
-        raise faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
     def detail(self, req, **kwargs):
         """ Returns a complete list of Shared IP Groups """
-        raise faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
     def create(self, req, **kwargs):
         """ Creates a new Shared IP group """
-        raise faults.Fault(exc.HTTPNotImplemented())
+        raise exc.HTTPNotImplemented()
 
 
 def create_resource():
diff --git a/nova/api/openstack/users.py b/nova/api/openstack/users.py
index 6ae1eaf2a..8dd72d559 100644
--- a/nova/api/openstack/users.py
+++ b/nova/api/openstack/users.py
@@ -19,7 +19,6 @@ from nova import exception
 from nova import flags
 from nova import log as logging
 from nova.api.openstack import common
-from nova.api.openstack import faults
 from nova.api.openstack import wsgi
 from nova.auth import manager
 
@@ -69,7 +68,7 @@ class Controller(object):
             user = None
 
         if user is None:
-            raise faults.Fault(exc.HTTPNotFound())
+            raise exc.HTTPNotFound()
 
         return dict(user=_translate_keys(user))
 
diff --git a/nova/api/openstack/versions.py b/nova/api/openstack/versions.py
index a634c3267..df7a94b7e 100644
--- a/nova/api/openstack/versions.py
+++ b/nova/api/openstack/versions.py
@@ -15,13 +15,18 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from datetime import datetime
 import webob
 import webob.dec
+from xml.dom import minidom
 
 import nova.api.openstack.views.versions
 from nova.api.openstack import wsgi
 
 
+ATOM_XMLNS = "http://www.w3.org/2005/Atom"
+
+
 class Versions(wsgi.Resource):
     def __init__(self):
         metadata = {
@@ -32,11 +37,19 @@ class Versions(wsgi.Resource):
         }
 
         body_serializers = {
-            'application/xml': wsgi.XMLDictSerializer(metadata=metadata),
+            'application/atom+xml': VersionsAtomSerializer(metadata=metadata),
+            'application/xml': VersionsXMLSerializer(metadata=metadata),
         }
         serializer = wsgi.ResponseSerializer(body_serializers)
 
-        wsgi.Resource.__init__(self, None, serializer=serializer)
+        supported_content_types = ('application/json',
+                                   'application/xml',
+                                   'application/atom+xml')
+        deserializer = wsgi.RequestDeserializer(
+            supported_content_types=supported_content_types)
+
+        wsgi.Resource.__init__(self, None, serializer=serializer,
+                               deserializer=deserializer)
 
     def dispatch(self, request, *args):
         """Respond to a request for all OpenStack API versions."""
@@ -44,13 +57,143 @@ class Versions(wsgi.Resource):
             {
                 "id": "v1.1",
                 "status": "CURRENT",
+                #TODO(wwolf) get correct value for these
+                "updated": "2011-07-18T11:30:00Z",
             },
             {
                 "id": "v1.0",
                 "status": "DEPRECATED",
+                #TODO(wwolf) get correct value for these
+                "updated": "2010-10-09T11:30:00Z",
             },
         ]
 
         builder = nova.api.openstack.views.versions.get_view_builder(request)
         versions = [builder.build(version) for version in version_objs]
         return dict(versions=versions)
+
+
+class VersionsXMLSerializer(wsgi.XMLDictSerializer):
+    def _versions_to_xml(self, versions):
+        root = self._xml_doc.createElement('versions')
+
+        for version in versions:
+            root.appendChild(self._create_version_node(version))
+
+        return root
+
+    def _create_version_node(self, version):
+        version_node = self._xml_doc.createElement('version')
+        version_node.setAttribute('id', version['id'])
+        version_node.setAttribute('status', version['status'])
+        version_node.setAttribute('updated', version['updated'])
+
+        for link in version['links']:
+            link_node = self._xml_doc.createElement('atom:link')
+            link_node.setAttribute('rel', link['rel'])
+            link_node.setAttribute('href', link['href'])
+            version_node.appendChild(link_node)
+
+        return version_node
+
+    def default(self, data):
+        self._xml_doc = minidom.Document()
+        node = self._versions_to_xml(data['versions'])
+
+        return self.to_xml_string(node)
+
+
+class VersionsAtomSerializer(wsgi.XMLDictSerializer):
+    def __init__(self, metadata=None, xmlns=None):
+        if not xmlns:
+            self.xmlns = ATOM_XMLNS
+        else:
+            self.xmlns = xmlns
+
+    def _create_text_elem(self, name, text, type=None):
+        elem = self._xml_doc.createElement(name)
+        if type:
+            elem.setAttribute('type', type)
+        elem_text = self._xml_doc.createTextNode(text)
+        elem.appendChild(elem_text)
+        return elem
+
+    def _get_most_recent_update(self, versions):
+        recent = None
+        for version in versions:
+            updated = datetime.strptime(version['updated'],
+                                        '%Y-%m-%dT%H:%M:%SZ')
+            if not recent:
+                recent = updated
+            elif updated > recent:
+                recent = updated
+
+        return recent.strftime('%Y-%m-%dT%H:%M:%SZ')
+
+    def _get_base_url(self, link_href):
+        # Make sure no trailing /
+        link_href = link_href.rstrip('/')
+        return link_href.rsplit('/', 1)[0] + '/'
+
+    def _create_meta(self, root, versions):
+        title = self._create_text_elem('title', 'Available API Versions',
+                                       type='text')
+        # Set this updated to the most recently updated version
+        recent = self._get_most_recent_update(versions)
+        updated = self._create_text_elem('updated', recent)
+
+        base_url = self._get_base_url(versions[0]['links'][0]['href'])
+        id = self._create_text_elem('id', base_url)
+        link = self._xml_doc.createElement('link')
+        link.setAttribute('rel', 'self')
+        link.setAttribute('href', base_url)
+
+        author = self._xml_doc.createElement('author')
+        author_name = self._create_text_elem('name', 'Rackspace')
+        author_uri = self._create_text_elem('uri', 'http://www.rackspace.com/')
+        author.appendChild(author_name)
+        author.appendChild(author_uri)
+
+        root.appendChild(title)
+        root.appendChild(updated)
+        root.appendChild(id)
+        root.appendChild(author)
+        root.appendChild(link)
+
+    def _create_version_entries(self, root, versions):
+        for version in versions:
+            entry = self._xml_doc.createElement('entry')
+
+            id = self._create_text_elem('id', version['links'][0]['href'])
+            title = self._create_text_elem('title',
+                                           'Version %s' % version['id'],
+                                           type='text')
+            updated = self._create_text_elem('updated', version['updated'])
+
+            entry.appendChild(id)
+            entry.appendChild(title)
+            entry.appendChild(updated)
+
+            for link in version['links']:
+                link_node = self._xml_doc.createElement('link')
+                link_node.setAttribute('rel', link['rel'])
+                link_node.setAttribute('href', link['href'])
+            entry.appendChild(link_node)
+
+            content = self._create_text_elem('content',
+                'Version %s %s (%s)' %
+                    (version['id'],
+                     version['status'],
+                     version['updated']),
+                type='text')
+
+            entry.appendChild(content)
+            root.appendChild(entry)
+
+    def default(self, data):
+        self._xml_doc = minidom.Document()
+        node = self._xml_doc.createElementNS(self.xmlns, 'feed')
+        self._create_meta(node, data['versions'])
+        self._create_version_entries(node, data['versions'])
+
+        return self.to_xml_string(node)
diff --git a/nova/api/openstack/views/addresses.py b/nova/api/openstack/views/addresses.py
index a242efa45..ddbf7a144 100644
--- a/nova/api/openstack/views/addresses.py
+++ b/nova/api/openstack/views/addresses.py
@@ -15,9 +15,12 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from nova import flags
 from nova import utils
 from nova.api.openstack import common
 
+FLAGS = flags.FLAGS
+
 
 class ViewBuilder(object):
     """Models a server addresses response as a python dictionary."""
@@ -50,22 +53,37 @@ class ViewBuilderV11(ViewBuilder):
             if network_label not in networks:
                 networks[network_label] = []
 
-            networks[network_label].extend(self._extract_ipv4(interface))
+            ip_addresses = list(self._extract_ipv4_addresses(interface))
+
+            if FLAGS.use_ipv6:
+                ipv6_address = self._extract_ipv6_address(interface)
+                if ipv6_address is not None:
+                    ip_addresses.append(ipv6_address)
+
+            networks[network_label].extend(ip_addresses)
 
         return networks
 
     def build_network(self, interfaces, network_label):
         for interface in interfaces:
             if interface['network']['label'] == network_label:
-                ips = self._extract_ipv4(interface)
-                return {network_label: list(ips)}
+                ips = list(self._extract_ipv4_addresses(interface))
+                ipv6 = self._extract_ipv6_address(interface)
+                if ipv6 is not None:
+                    ips.append(ipv6)
+                return {network_label: ips}
         return None
 
-    def _extract_ipv4(self, interface):
+    def _extract_ipv4_addresses(self, interface):
         for fixed_ip in interface['fixed_ips']:
             yield self._build_ip_entity(fixed_ip['address'], 4)
             for floating_ip in fixed_ip.get('floating_ips', []):
                 yield self._build_ip_entity(floating_ip['address'], 4)
 
+    def _extract_ipv6_address(self, interface):
+        fixed_ipv6 = interface.get('fixed_ipv6')
+        if fixed_ipv6 is not None:
+            return self._build_ip_entity(fixed_ipv6, 6)
+
     def _build_ip_entity(self, address, version):
         return {'addr': address, 'version': version}
diff --git a/nova/api/openstack/views/limits.py b/nova/api/openstack/views/limits.py
index 934b4921a..f603d7cb4 100644
--- a/nova/api/openstack/views/limits.py
+++ b/nova/api/openstack/views/limits.py
@@ -15,9 +15,11 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import datetime
 import time
 
 from nova.api.openstack import common
+from nova import utils
 
 
 class ViewBuilder(object):
@@ -113,10 +115,12 @@ class ViewBuilderV11(ViewBuilder):
         return limits
 
     def _build_rate_limit(self, rate_limit):
+        next_avail = \
+            datetime.datetime.utcfromtimestamp(rate_limit["resetTime"])
         return {
             "verb": rate_limit["verb"],
             "value": rate_limit["value"],
             "remaining": int(rate_limit["remaining"]),
             "unit": rate_limit["unit"],
-            "next-available": rate_limit["resetTime"],
+            "next-available": utils.isotime(at=next_avail),
         }
diff --git a/nova/api/openstack/views/servers.py b/nova/api/openstack/views/servers.py
index 817e6ddfc..be25e1e40 100644
--- a/nova/api/openstack/views/servers.py
+++ b/nova/api/openstack/views/servers.py
@@ -82,7 +82,7 @@ class ViewBuilder(object):
         ctxt = nova.context.get_admin_context()
         compute_api = nova.compute.API()
 
-        if compute_api.has_finished_migration(ctxt, inst['id']):
+        if compute_api.has_finished_migration(ctxt, inst['uuid']):
             inst_dict['status'] = 'RESIZE-CONFIRM'
 
         # Return the metadata as a dictionary
diff --git a/nova/api/openstack/views/versions.py b/nova/api/openstack/views/versions.py
index d0145c94a..9fa8f49dc 100644
--- a/nova/api/openstack/views/versions.py
+++ b/nova/api/openstack/views/versions.py
@@ -36,6 +36,7 @@ class ViewBuilder(object):
         version = {
             "id": version_data["id"],
             "status": version_data["status"],
+            "updated": version_data["updated"],
             "links": self._build_links(version_data),
         }
 
@@ -56,4 +57,4 @@ class ViewBuilder(object):
 
     def generate_href(self, version_number):
         """Create an url that refers to a specific version_number."""
-        return os.path.join(self.base_url, version_number)
+        return os.path.join(self.base_url, version_number) + '/'
diff --git a/nova/api/openstack/wsgi.py b/nova/api/openstack/wsgi.py
index c3f841aa5..c10cb3bc9 100644
--- a/nova/api/openstack/wsgi.py
+++ b/nova/api/openstack/wsgi.py
@@ -13,6 +13,7 @@ from nova import wsgi
 
 XMLNS_V10 = 'http://docs.rackspacecloud.com/servers/api/v1.0'
 XMLNS_V11 = 'http://docs.openstack.org/compute/api/v1.1'
+XMLNS_ATOM = 'http://www.w3.org/2005/Atom'
 
 LOG = logging.getLogger('nova.api.openstack.wsgi')
 
@@ -20,21 +21,22 @@ LOG = logging.getLogger('nova.api.openstack.wsgi')
 class Request(webob.Request):
     """Add some Openstack API-specific logic to the base webob.Request."""
 
-    def best_match_content_type(self):
+    def best_match_content_type(self, supported_content_types=None):
         """Determine the requested response content-type.
 
         Based on the query extension then the Accept header.
 
         """
-        supported = ('application/json', 'application/xml')
+        supported_content_types = supported_content_types or \
+            ('application/json', 'application/xml')
 
         parts = self.path.rsplit('.', 1)
         if len(parts) > 1:
             ctype = 'application/{0}'.format(parts[1])
-            if ctype in supported:
+            if ctype in supported_content_types:
                 return ctype
 
-        bm = self.accept.best_match(supported)
+        bm = self.accept.best_match(supported_content_types)
 
         # default to application/json if we don't find a preference
         return bm or 'application/json'
@@ -151,7 +153,12 @@ class RequestHeadersDeserializer(ActionDispatcher):
 class RequestDeserializer(object):
     """Break up a Request object into more useful pieces."""
 
-    def __init__(self, body_deserializers=None, headers_deserializer=None):
+    def __init__(self, body_deserializers=None, headers_deserializer=None,
+                 supported_content_types=None):
+
+        self.supported_content_types = supported_content_types or \
+                ('application/json', 'application/xml')
+
         self.body_deserializers = {
             'application/xml': XMLDeserializer(),
             'application/json': JSONDeserializer(),
@@ -213,7 +220,7 @@ class RequestDeserializer(object):
             raise exception.InvalidContentType(content_type=content_type)
 
     def get_expected_content_type(self, request):
-        return request.best_match_content_type()
+        return request.best_match_content_type(self.supported_content_types)
 
     def get_action_args(self, request_environment):
         """Parse dictionary created by routes library."""
@@ -412,6 +419,7 @@ class Resource(wsgi.Application):
     serialized by requested content type.
 
     """
+
     def __init__(self, controller, deserializer=None, serializer=None):
         """
         :param controller: object that implement methods created by routes lib
@@ -441,7 +449,11 @@ class Resource(wsgi.Application):
             msg = _("Malformed request body")
             return faults.Fault(webob.exc.HTTPBadRequest(explanation=msg))
 
-        action_result = self.dispatch(request, action, args)
+        try:
+            action_result = self.dispatch(request, action, args)
+        except webob.exc.HTTPException as ex:
+            LOG.info(_("HTTP exception thrown: %s"), unicode(ex))
+            action_result = faults.Fault(ex)
 
         #TODO(bcwaldon): find a more elegant way to pass through non-dict types
         if type(action_result) is dict or action_result is None:
diff --git a/nova/api/openstack/zones.py b/nova/api/openstack/zones.py
index 2e02ec380..f7fd87bcd 100644
--- a/nova/api/openstack/zones.py
+++ b/nova/api/openstack/zones.py
@@ -27,7 +27,6 @@ from nova.scheduler import api
 
 from nova.api.openstack import create_instance_helper as helper
 from nova.api.openstack import common
-from nova.api.openstack import faults
 from nova.api.openstack import wsgi
 
 
@@ -127,11 +126,8 @@ class Controller(object):
         Returns a reservation ID (a UUID).
         """
         result = None
-        try:
-            extra_values, result = self.helper.create_instance(req, body,
-                                    self.compute_api.create_all_at_once)
-        except faults.Fault, f:
-            return f
+        extra_values, result = self.helper.create_instance(req, body,
+                                self.compute_api.create_all_at_once)
 
         reservation_id = result
         return {'reservation_id': reservation_id}