require_login.py (Fix for links to authenticated Plone content from MS Office)

require_login.py

from Products.PythonScripts.standard import url_unquote

login = 'login'

portal = context.portal_url.getPortalObject()
# if cookie crumbler did a traverse instead of a redirect,
# this would be the way to get the value of came_from
#url = portal.getCurrentUrl()
#context.REQUEST.set('came_from', url)

if context.portal_membership.isAnonymousUser():
    return portal.restrictedTraverse(login)()
else:
    came_from = url_unquote(context.REQUEST.get('came_from', ''))
    location = came_from.split('?')[0]
    try:
        # Attempt a traverse to the given path
        portal.restrictedTraverse(location.replace(
            portal.absolute_url() + '/', ''))
        container.REQUEST.RESPONSE.redirect(came_from)
    except:
        return portal.restrictedTraverse('insufficient_privileges')()

https://support.microsoft.com/en-us/kb/899927