def _tls_connect(self, tls_server):
Log.dprint(
f'[{tls_server}/{self._protocol.name}] Opening secure socket.') # pylint: disable=no-member
sock = socket(AF_INET, SOCK_STREAM)
sock.settimeout(RELAY_TIMEOUT)
dns_sock = self._tls_context.wrap_socket(sock,
server_hostname=tls_server)
try:
dns_sock.connect((tls_server, PROTO.DNS_TLS))
except OSError:
Log.error(
f'[{tls_server}/{self._protocol.name}] Failed to connect to server: {E}'
) # pylint: disable=no-member
except Exception as E:
Log.console(
f'[{tls_server}/{self._protocol.name}] TLS context error while attemping to connect to server: {E}'
) # pylint: disable=no-member
Log.debug(
f'[{tls_server}/{self._protocol.name}] TLS context error while attemping to connect to server: {E}'
) # pylint: disable=no-member
else:
self._relay_conn = RELAY_CONN(tls_server, dns_sock, dns_sock.send,
dns_sock.recv, dns_sock.version())
return True
return None
def _register_new_socket(self): #, client_query=None):
for tls_server in self._DNSServer.dns_servers:
# skipping over known down server
if (not tls_server[self._protocol]): continue
# attempting to connect via tls. if successful will return True, otherwise mark server as
# down and try next server.
if self._tls_connect(tls_server['ip']): return True
self.mark_server_down(remote_server=tls_server['ip'])
else:
self._DNSServer.tls_up = False
Log.error(f'[{self._protocol}] No DNS servers available.')