headers = None

                if session.request['set_cookie']:

                    # send set-cookie headers back to response to update cookie

                    headers = [('Set-Cookie', session.request['cookie_out'])]

                allowed_schemes = ['http', 'https']

                if c.came_from:

                    parsed = urlparse.urlparse(c.came_from)

                    server_parsed = urlparse.urlparse(url.current())

                    if parsed.scheme and parsed.scheme not in allowed_schemes:

                        log.error(

                            'Suspicious URL scheme detected %s for url %s' %

                            (parsed.scheme, parsed))

                        c.came_from = url('home')

                    elif server_parsed.netloc != parsed.netloc:

                        log.error('Suspicious NETLOC detected %s for url %s'

                                  'server url is: %s' %

                                  (parsed.netloc, parsed, server_parsed))

                        c.came_from = url('home')

                    raise HTTPFound(location=c.came_from, headers=headers)

                else:

                    raise HTTPFound(location=url('home'), headers=headers)

            except formencode.Invalid, errors:

                return htmlfill.render(

                    render('/login.html'),

                    defaults=errors.value,

                    errors=errors.error_dict or {},

                    prefix_error=False,

                    encoding="UTF-8")

            except UserCreationError, e:

                # container auth or other auth functions that create users on

                # the fly can throw this exception signaling that there's issue

                # with user creation, explanation should be provided in

                # Exception itself

                h.flash(e, 'error')

        return render('/login.html')

    @HasPermissionAnyDecorator('hg.admin', 'hg.register.auto_activate',

                               'hg.register.manual_activate')

    def register(self):

        c.auto_active = 'hg.register.auto_activate' in User.get_default_user()\

            .AuthUser.permissions['global']

        if request.POST:

            register_form = RegisterForm()()

            try: