# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1421945454 -3600
# Node ID bb9494547de1d617bf1bdc10542e1e9d613d5020
# Parent  eff00f10d12abf19727e0039580d158e0494eeeb
Introduced a common DTSTAMP update method.

diff -r eff00f10d12a -r bb9494547de1 imip_manager.py
--- a/imip_manager.py	Thu Jan 22 17:50:22 2015 +0100
+++ b/imip_manager.py	Thu Jan 22 17:50:54 2015 +0100
@@ -24,7 +24,6 @@
 
 LIBRARY_PATH = "/var/lib/imip-agent"
 
-from datetime import datetime
 import babel.dates
 import cgi, os, sys
 
@@ -153,7 +152,7 @@
                 if update:
                     sequence = self.get_value("SEQUENCE") or "0"
                     self.details["SEQUENCE"] = [(str(int(sequence) + 1), {})]
-                self.details["DTSTAMP"] = [(format_datetime(to_timezone(datetime.utcnow(), "UTC")), {})]
+                self.update_dtstamp()
 
                 self.send_message(get_address(attendee))
 
diff -r eff00f10d12a -r bb9494547de1 imiptools/content.py
--- a/imiptools/content.py	Thu Jan 22 17:50:22 2015 +0100
+++ b/imiptools/content.py	Thu Jan 22 17:50:54 2015 +0100
@@ -442,6 +442,14 @@
 
         return True
 
+    def update_dtstamp(self):
+
+        "Update the DTSTAMP in the current object."
+
+        dtstamp = self.get_utc_datetime("DTSTAMP")
+        utcnow = to_timezone(datetime.utcnow(), "UTC")
+        self.details["DTSTAMP"] = [(format_datetime(dtstamp > utcnow and dtstamp or utcnow), {})]
+
 # Handler registry.
 
 methods = {
diff -r eff00f10d12a -r bb9494547de1 imiptools/handlers/resource.py
--- a/imiptools/handlers/resource.py	Thu Jan 22 17:50:22 2015 +0100
+++ b/imiptools/handlers/resource.py	Thu Jan 22 17:50:54 2015 +0100
@@ -19,7 +19,8 @@
 this program.  If not, see <http://www.gnu.org/licenses/>.
 """
 
-from imiptools.content import Handler, format_datetime, get_address, get_uri, to_part
+from imiptools.content import Handler, format_datetime, get_address, get_uri, \
+    to_part
 from imiptools.handlers.common import CommonFreebusy
 from vCalendar import to_node
 
@@ -76,6 +77,10 @@
 
         self.details["ATTENDEE"] = [(attendee, attendee_attr)]
 
+        # Update the DTSTAMP.
+
+        self.update_dtstamp()
+
         event = to_node({"VEVENT" : [(self.details, {})]})
         self.store.set_event(attendee, self.uid, event)