# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1411417829 -7200
# Node ID 6c4de504c4e4ed5abcd56d5eedd7aa9e5ebeab11
# Parent  cd9921fc12537e71335a72e07939f3e3cb1b73bd
Introduced conversion between URIs and addresses, together with dictionaries (or
maps) of attendees.

diff -r cd9921fc1253 -r 6c4de504c4e4 imip_agent.py
--- a/imip_agent.py	Mon Sep 22 22:07:27 2014 +0200
+++ b/imip_agent.py	Mon Sep 22 22:30:29 2014 +0200
@@ -89,6 +89,13 @@
     else:
         return None
 
+def get_value_map(d, name):
+    items = get_attr_value(d, name, False)
+    if items:
+        return map_from_list(items)
+    else:
+        return {}
+
 def get_value(d, name, single=True):
     if d.has_key(name):
         values = d[name]
@@ -99,6 +106,16 @@
     else:
         return None
 
+def map_from_list(l):
+    items = map(lambda (v, a): (a, v), l)
+    return dict(items)
+
+def get_address(value):
+    return value.startswith("mailto:") and value[7:] or value
+
+def get_uri(value):
+    return value.startswith("mailto:") and value or "mailto:%s" % value
+
 def handle_itip_part(part, recipients):
     method = part.get_param("method")
 
@@ -154,11 +171,14 @@
     def get_attr_value(self, name, single=True):
         return get_attr_value(self.details, name, single)
 
+    def get_value_map(self, name):
+        return get_value_map(self.details, name)
+
     def get_value(self, name, single=True):
         return get_value(self.details, name, single)
 
-    def filter_by_recipients(self, attr_values):
-        return [a for attr, value in attendees if value in self.recipients]
+    def filter_by_recipients(self, values):
+        return self.recipients.intersection(map(get_address, values))
 
 class Event(Handler):
 
@@ -211,12 +231,12 @@
         for each indicated attendee.
         """
 
-        attendees = self.get_attr_value("ATTENDEE", False)
+        attendee_map = self.get_value_map("ATTENDEE")
         organiser = self.get_attr_value("ORGANIZER")
 
         # Only provide details for recipients who are also attendees.
 
-        attendees = self.filter_by_recipients(attendees)
+        attendees = map(get_uri, self.filter_by_recipients(attendee_map))
 
         if not attendees and not organiser:
             return
@@ -234,13 +254,13 @@
             cwrite(("METHOD", {}, "REPLY"))
             cwrite(("VERSION", {}, "2.0"))
 
-            for attendee_attr, attendee in attendees:
+            for attendee in attendees:
                 freebusy = self.store.get_freebusy(attendee)
                 if freebusy:
                     record = []
                     rwrite = record.append
                     rwrite(("ORGANIZER", organiser_attr, organiser))
-                    rwrite(("ATTENDEE", attendee_attr, attendee))
+                    rwrite(("ATTENDEE", attendee_map[attendee], attendee))
                     rwrite(("UID", {}, self.uid))
 
                     for start, end in freebusy: