def _get_request_url(self):
        env = self._get_wsgi_environ()
        if env is not None:
            return get_current_url(env)
        return ''
Gets an floating ip from the pool.
dataset/ETHPy150Open mitsuhiko/fungiform/fungiform/forms.py/FormBase._get_request_url--crossover with--dataset/ETHPy150Open nii-cloud/dodai-compute/nova/network/manager.py/FloatingIP.allocate_floating_ip