+ tfa = try_get(res, lambda x: x[0][0], list)
+ if tfa:
+ tfa_str = try_get(tfa, lambda x: x[2], compat_str)
+ if tfa_str == 'TWO_STEP_VERIFICATION':
+ # SEND_SUCCESS - TFA code has been successfully sent to phone
+ # QUOTA_EXCEEDED - reached the limit of TFA codes
+ status = try_get(tfa, lambda x: x[5], compat_str)
+ if status == 'QUOTA_EXCEEDED':
+ warn('Exceeded the limit of TFA codes, try later')
+ return False
+
+ tl = try_get(challenge_results, lambda x: x[1][2], compat_str)
+ if not tl:
+ warn('Unable to extract TL')
+ return False
+
+ tfa_code = self._get_tfa_info('2-step verification code')
+
+ if not tfa_code:
+ warn(
+ 'Two-factor authentication required. Provide it either interactively or with --twofactor <code>'
+ '(Note that only TOTP (Google Authenticator App) codes work at this time.)')
+ return False
+
+ tfa_code = remove_start(tfa_code, 'G-')
+
+ tfa_req = [
+ user_hash, None, 2, None,
+ [
+ 9, None, None, None, None, None, None, None,
+ [None, tfa_code, True, 2]
+ ]]
+
+ tfa_results = req(
+ self._TFA_URL.format(tl), tfa_req,
+ 'Submitting TFA code', 'Unable to submit TFA code')
+
+ if tfa_results is False:
+ return False
+
+ tfa_res = try_get(tfa_results, lambda x: x[0][5], list)
+ if tfa_res:
+ tfa_msg = try_get(tfa_res, lambda x: x[5], compat_str)
+ warn(
+ 'Unable to finish TFA: %s' % 'Invalid TFA code'
+ if tfa_msg == 'INCORRECT_ANSWER_ENTERED' else tfa_msg)
+ return False
+
+ check_cookie_url = try_get(
+ tfa_results, lambda x: x[0][-1][2], compat_str)
+ else:
+ check_cookie_url = try_get(res, lambda x: x[2], compat_str)