# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1445004703 -7200
# Node ID 4530fda4bc4f8de0fa535e360d8da62d2bebae2d
# Parent  95b15ca80c25f68deaf3018b483445f3fd54b83f
Strip SENT-BY from other participants when sending messages.

diff -r 95b15ca80c25 -r 4530fda4bc4f imiptools/data.py
--- a/imiptools/data.py	Fri Oct 16 16:11:01 2015 +0200
+++ b/imiptools/data.py	Fri Oct 16 16:11:43 2015 +0200
@@ -442,6 +442,14 @@
         self["SEQUENCE"] = [(str(int(sequence) + (increment and 1 or 0)), {})]
         return sequence
 
+    def update_senders(self, user=None):
+
+        "Remove SENT-BY attributes from properties."
+
+        for identity, attr in self.get_items("ATTENDEE") or []:
+            if attr.has_key("SENT-BY") and (not user or get_uri(identity) != user):
+                del attr["SENT-BY"]
+
     def update_exceptions(self, excluded):
 
         """
diff -r 95b15ca80c25 -r 4530fda4bc4f imipweb/resource.py
--- a/imipweb/resource.py	Fri Oct 16 16:11:01 2015 +0200
+++ b/imipweb/resource.py	Fri Oct 16 16:11:43 2015 +0200
@@ -289,6 +289,7 @@
             return False
 
         method = "DECLINECOUNTER"
+        obj.update_senders()
         obj.update_dtstamp()
         obj.update_sequence(False)
         self._send_message(get_address(self.user), [get_address(attendee)], parts=[obj.to_part(method)])
@@ -312,6 +313,8 @@
 
         if not changed:
             self.obj["ATTENDEE"] = [(self.user, attendee_attr)]
+        else:
+            self.obj.update_senders(self.user)
 
         self.update_dtstamp()
         self.update_sequence(False)
@@ -336,6 +339,7 @@
         organiser, organiser_attr = uri_item(self.obj.get_item("ORGANIZER"))
 
         self.update_sender(organiser_attr)
+        self.obj.update_senders()
         self.update_dtstamp()
         self.update_sequence(True)