# HG changeset patch
# User Martin B. <martin@webscio.net>
# Date 1418120677 -3600
#      Tue Dec 09 11:24:37 2014 +0100
# Branch fix-empty-lease-seconds
# Node ID bfbf2780ee1c43141db325236ea5be81b0a8fbd1
# Parent  93226503d5b6ad5d12a91e2cc09ca8ebba10f543
Catch invalid lease_seconds values supplied by GET

diff --git a/djpubsubhubbub/views.py b/djpubsubhubbub/views.py
--- a/djpubsubhubbub/views.py
+++ b/djpubsubhubbub/views.py
@@ -1,6 +1,5 @@
 import urllib
 import feedparser
-from datetime import datetime
 
 from django.http import HttpResponse, Http404
 from django.shortcuts import get_object_or_404
@@ -18,10 +17,11 @@
             mode = request.GET['hub.mode']
             topic = request.GET['hub.topic']
             challenge = request.GET['hub.challenge']
-            lease_seconds = request.GET.get(
-                'hub.lease_seconds',
-                DEFAULT_LEASE_SECONDS,
-            )
+            lease_seconds = request.GET.get('hub.lease_seconds', '')
+            try:
+                lease_seconds = int(lease_seconds)
+            except ValueError:
+                lease_seconds = DEFAULT_LEASE_SECONDS
             verify_token = request.GET.get('hub.verify_token', '')
         except MultiValueDictKeyError:
             # Raise 404 instead of 500 error
@@ -53,7 +53,7 @@
 
             subscription.verified = True
             subscription.is_subscribed = True
-            subscription.set_expiration(int(lease_seconds))
+            subscription.set_expiration(lease_seconds)
             verified.send(sender=subscription)
         elif mode == 'unsubscribe':
             if not verify_token.startswith('unsubscribe'):
@@ -61,7 +61,7 @@
 
             subscription.verified = False
             subscription.is_subscribed = False
-            subscription.set_expiration(int(lease_seconds))
+            subscription.set_expiration(lease_seconds)
 
         return HttpResponse(challenge, content_type='text/plain')
     elif request.method == 'POST':