def logout(request):
"""
Logs the user out of their Uniauth account, and
redirects to the next page, defaulting to the URL
specified by the UNIAUTH_LOGOUT_REDIRECT_URL setting.
If no redirect page is set (URL parameter not given
and UNIAUTH_LOGOUT_REDIRECT_URL is None), renders the
logout template.
Also logs the user out of CAS if they logged in
via CAS, and the UNIAUTH_LOGOUT_CAS_COMPLETELY
setting is true.
"""
next_page = request.GET.get('next')
auth_method = request.session.get('auth-method')
if not next_page and get_setting('UNIAUTH_LOGOUT_REDIRECT_URL'):
next_page = get_redirect_url(
request, get_setting('UNIAUTH_LOGOUT_REDIRECT_URL'))
# Formally log out user
auth_logout(request)
# Determine whether the user logged in through an institution's CAS
institution = None
if auth_method and auth_method.startswith("cas-"):
try:
institution = Institution.objects.get(slug=auth_method[4:])
except Institution.DoesNotExist:
pass
# If we need to logout an institution's CAS,
# redirect to that CAS server's logout URL
if institution and get_setting('UNIAUTH_LOGOUT_CAS_COMPLETELY'):
redirect_url = urlunparse(
(get_protocol(request), request.get_host(), next_page
or reverse('uniauth:logout'), '', '', ''))
client = CASClient(version=2,
service_url=get_service_url(request),
server_url=institution.cas_server_url)
return HttpResponseRedirect(client.get_logout_url(redirect_url))
# If next page is set, proceed to it
elif next_page:
return HttpResponseRedirect(next_page)
# Otherwise, render the logout view
else:
return render(request, 'uniauth/logout.html')
def _send_verification_email(request, to_email, verify_email):
"""
Sends an email (to to_email) containing a link to
verify the target email (verify_email) as a linked
email address for the user.
Expects to_email as a string, and verify_email as
a LinkedEmail model instance.
"""
subject = "Verify your email address."
message = render_to_string(
'uniauth/verification-email.html', {
'protocol': get_protocol(request),
'domain': get_current_site(request),
'pk': encode_pk(verify_email.pk),
'token': token_generator.make_token(verify_email),
'query_params': _get_global_context(request)["query_params"],
})
email = EmailMessage(subject,
message,
to=[to_email],
from_email=get_setting('UNIAUTH_FROM_EMAIL'))
email.send()