Add Network Fails in Webapp After Period of Inactivity

[ian-jarrett]

Summary
After approximately 90 minutes of inactivity in the webapp, it is impossible to add a new network. The UI gives a generic error, and by putting the browser into developer mode (F12), selecting "Network" and viewing the response traffic it is possible to see an HTTP Error 403. This is believed to be caused by the crumb that was originally generated for the session by Jenkins has timed out, and the resulting request is forbidden.

Workaround
From the nita host, restarting the webapp with nita-cmd webapp restart and logging back in fixes it (although the operation to add a new network will need to be repeated).

Culprit
It is unclear what the exact cause is, but we think that views.py is the first place to look. We noticed that these functions use crumbRequestor code:

• deleteCampusTypeView
• triggerAction

But these functions do not:

• deleteCampusNetworkView
• addCampusTypeView
• addCampusNetworkView

Perhaps these other add & delete functions should also use the crumbRequestor code?