1 files changed, 47 insertions, 0 deletions
diff --git a/slixmpp/plugins/xep_0461/stanza.py b/slixmpp/plugins/xep_0461/stanza.py
new file mode 100644
index 00000000..b99b2745
--- /dev/null
+++ b/slixmpp/plugins/xep_0461/stanza.py
@@ -0,0 +1,47 @@
+from slixmpp.stanza import Message
+from slixmpp.xmlstream import ElementBase, register_stanza_plugin
+
+NS = "urn:xmpp:reply:0"
+
+
+class Reply(ElementBase):
+    namespace = NS
+    name = "reply"
+    plugin_attrib = "reply"
+    interfaces = {"id", "to"}
+
+
+class FeatureFallBack(ElementBase):
+    # should also be a multi attrib
+    namespace = "urn:xmpp:feature-fallback:0"
+    name = "fallback"
+    plugin_attrib = "feature_fallback"
+    interfaces = {"for"}
+
+    def get_stripped_body(self):
+        # only works for a single fallback_body attrib
+        start = self["fallback_body"]["start"]
+        end = self["fallback_body"]["end"]
+        body = self.parent()["body"]
+        try:
+            start = int(start)
+            end = int(end)
+        except ValueError:
+            return body
+        else:
+            return body[:start] + body[end:]
+
+
+class FallBackBody(ElementBase):
+    # According to https://xmpp.org/extensions/inbox/compatibility-fallback.html
+    # this should be a multi_attrib *but* since it's a protoXEP, we'll see...
+    namespace = FeatureFallBack.namespace
+    name = "body"
+    plugin_attrib = "fallback_body"
+    interfaces = {"start", "end"}
+
+
+def register_plugins():
+    register_stanza_plugin(Message, Reply)
+    register_stanza_plugin(Message, FeatureFallBack)
+    register_stanza_plugin(FeatureFallBack, FallBackBody)