def __init__(self,
connection: ConnectionAPI,
context: BasePeerContext,
event_bus: EndpointAPI = None,
) -> None:
super().__init__(token=connection.cancel_token, loop=connection.cancel_token.loop)
# Peer context object
self.context = context
# Connection instance
self.connection = connection
self.multiplexer = connection.get_multiplexer()
self.base_protocol = self.connection.get_base_protocol()
# TODO: need to remove this property but for now it is here to support
# backwards compat
for protocol_class in self.supported_sub_protocols:
try:
self.sub_proto = self.multiplexer.get_protocol_by_type(protocol_class)
except UnknownProtocol:
pass
else:
break
else:
raise ValidationError("No supported subprotocols found in multiplexer")
# The self-identifying string that the remote names itself.
self.client_version_string = self.connection.safe_client_version_string
# Optional event bus handle
self._event_bus = event_bus
# Flag indicating whether the connection this peer represents was
# established from a dial-out or dial-in (True: dial-in, False:
# dial-out)
# TODO: rename to `dial_in` and have a computed property for `dial_out`
self.inbound = connection.is_dial_in
self._subscribers: List[PeerSubscriber] = []
# A counter of the number of messages this peer has received for each
# message type.
self.received_msgs: Dict[CommandAPI, int] = collections.defaultdict(int)
# Manages the boot process
self.boot_manager = self.get_boot_manager()
self.connection_tracker = self.setup_connection_tracker()
self.process_handshake_receipts(
connection.get_p2p_receipt(),
connection.protocol_receipts,
)
def applies_to(self, connection: ConnectionAPI) -> bool:
return any(
protocol.supports_command(self.cmd_type)
for protocol in connection.get_multiplexer().get_protocols())