1 files changed, 42 insertions, 0 deletions
diff --git a/synapse/api/constants.py b/synapse/api/constants.py
new file mode 100644
index 0000000000..37bf41bfb3
--- /dev/null
+++ b/synapse/api/constants.py
@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+# Copyright 2014 matrix.org
+#
+# 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.
+"""Contains constants from the specification."""
+
+
+class Membership(object):
+
+    """Represents the membership states of a user in a room."""
+    INVITE = u"invite"
+    JOIN = u"join"
+    KNOCK = u"knock"
+    LEAVE = u"leave"
+
+
+class Feedback(object):
+
+    """Represents the types of feedback a user can send in response to a
+    message."""
+
+    DELIVERED = u"d"
+    READ = u"r"
+    LIST = (DELIVERED, READ)
+
+
+class PresenceState(object):
+    """Represents the presence state of a user."""
+    OFFLINE = 0
+    BUSY = 1
+    ONLINE = 2
+    FREE_FOR_CHAT = 3