def process_response(self):
if self._is_diverted_request:
return
try:
self._remote_headers = unsign_headers(
self.config,
self._remote_headers,
)
except SignatureError:
self.critical(
"Failed to verify response signature, server may be "
"improperly configured or we are experiencing MITM attack"
)
self.dump_info()
sys.exit(1)
if self.should_divert:
fut = self._send_request_future
fut.cancel()
yield from asyncio.sleep(0)
assert fut.done()
self.destroy_remote_connection()
self._remote_headers = None
yield from self.divert_request()
if self.request_has_body and self._reader.too_much_data:
yield from self.respond_and_close(
code=503,
status="Service Unavailable",
body="Diverting request, please retry.",
)
assert False # Unreachable
yield from self.ensure_remote_connection()
assert self._send_request_future == fut
self._send_request_future = None
self.begin_send_request()
yield from self.read_remote_headers()
def try_unsign_readers(self, request):
try:
return unsign_headers(self.config, request)
except SignatureError as e:
self.debug("Unauthorized request: %s", repr(e))
return None