def logout_view(request, next_page=None,
template_name='registration/logged_out.html',
redirect_field_name=REDIRECT_FIELD_NAME,
current_app=None, extra_context=None):
"""
Logs out the user and displays 'You are logged out' message.
"""
cart = ShoppingCart(request)
cart_contents = cart.get_contents()
visitor_info = request.session['visitor_info']
auth_logout(request)
cart.set_contents(cart_contents)
request.session['visitor_info'] = visitor_info
redirect_to = request.REQUEST.get(redirect_field_name, '')
if redirect_to:
netloc = urlparse.urlparse(redirect_to)[1]
# Security check -- don't allow redirection to a different host.
if not (netloc and netloc != request.get_host()):
return HttpResponseRedirect(redirect_to)
if next_page is None:
current_site = get_current_site(request)
context = RequestContext(request)
context.update({
'site': current_site,
'site_name': current_site.name,
'title': _('Logged out')
})
if extra_context is not None:
context.update(extra_context)
return TemplateResponse(request, template_name, context,
current_app=current_app)
else:
# Redirect to this page until the session has been cleared.
return HttpResponseRedirect(next_page or request.path)
