integrate nonce argument into register_notify_callbacks

notifications/templatetags/notifications_tags.py

@@ -41,7 +41,9 @@ def register_notify_callbacks(badge_class='live_notify_badge',  # pylint: disabl
                               refresh_period=15,
                               callbacks='',
                               api_name='list',
-                              fetch=5):
+                              fetch=5,
+                              nonce=None
+                              ):
     refresh_period = int(refresh_period) * 1000
 
     if api_name == 'list':
@@ -68,7 +70,10 @@ def register_notify_callbacks(badge_class='live_notify_badge',  # pylint: disabl
         fetch_count=fetch
     )
 
-    script = "<script>" + definitions
+    # add a nonce value to the script tag if one is provided
+    nonce_str = f' nonce="{nonce}"' if nonce is not None else ""
+
+    script = f'<script type="text/javascript"{nonce_str}>' + definitions
     for callback in callbacks.split(','):
         script += "register_notifier(" + callback + ");"
     script += "</script>"

notifications/tests/templates/test_live.html

@@ -2,7 +2,7 @@
 
 <script src="{% static 'notifications/notify.js' %}" type="text/javascript"></script>
 <script src="{% static 'notifications/live-test.js' %}" type="text/javascript"></script>
-{% register_notify_callbacks callbacks='fill_notification_list,fill_notification_badge' fetch=20 refresh_period=5 %}
+{% register_notify_callbacks callbacks='fill_notification_list,fill_notification_badge' fetch=20 refresh_period=5 nonce='{{nonce}}' %}
 
 There are this many notifications pending: {% live_notify_badge %}
 

notifications/tests/tests.py

@@ -436,7 +436,7 @@ class NotificationTestPages(TestCase):
         request = factory.get('/notification/live_updater')
         request.user = self.to_user
 
-        render(request, 'notifications/test_tags.html', {'request': request})
+        render(request, 'notifications/test_tags.html', {'request': request, 'nonce': 'nonce-T5esDNXMnDe5lKMQ6ZzTUw=='})
 
         # TODO: Add more tests to check what is being output.