1 files changed, 47 insertions, 0 deletions
diff --git a/keystone/common/extension.py b/keystone/common/extension.py
new file mode 100644
index 00000000..f176a197
--- /dev/null
+++ b/keystone/common/extension.py
@@ -0,0 +1,47 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013 OpenStack LLC
+#
+# 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.
+
+
+ADMIN_EXTENSIONS = {}
+PUBLIC_EXTENSIONS = {}
+
+
+def register_admin_extension(url_prefix, extension_data):
+    """Register extension with collection of admin extensions.
+
+    Extensions register the information here that will show
+    up in the /extensions page as a way to indicate that the extension is
+    active.
+
+    url_prefix:  unique key for the extension that will appear in the
+                urls generated by the extension.
+
+    extension_data is a dictionary.  The expected fields are:
+        'name':  short, human readable name of the extnsion
+        'namespace':  xml namespace
+        'alias':  identifier for the extension
+        'updated':  date the extension was last updated
+        'description':  text description of the extension
+        'links':  hyperlinks to documents describing the extension
+
+    """
+    ADMIN_EXTENSIONS[url_prefix] = extension_data
+
+
+def register_public_extension(url_prefix, extension_data):
+    """Same as register_admin_extension but for public extensions."""
+
+    PUBLIC_EXTENSIONS[url_prefix] = extension_data