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unified the cls_from_connection, instance_from_connection

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Faraphel 2023-02-23 22:38:04 +01:00
parent fb90534436
commit 1bbef3f57d
1 changed files with 11 additions and 23 deletions
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34
source/network/packet/abc/Packet.py
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@ -50,35 +50,23 @@ class Packet(ABC):
connection.send(self.packet_header + self.to_bytes()) connection.send(self.packet_header + self.to_bytes())
@classmethod @classmethod
def cls_from_connection(cls, connection: socket.socket) -> Optional[Type["Packet"]]: def from_connection(cls, connection: socket.socket) -> Optional["Packet"]:
""" """
Receive a packet type from a socket. Receive a packet from a socket.
:param connection: the socket where to get the header from :param connection: the socket where to get the data from
:return: the packet class, or None if there was nothing in the socket to receive. :return: the packet, or None if there was nothing in the socket to receive.
""" """
# get the packet type
packet_header: Optional[bytes] = None packet_header: Optional[bytes] = None
try: try:
packet_header = connection.recv(1) packet_header = connection.recv(1)
except socket.timeout: except socket.timeout:
pass pass
return cls.cls_from_header(packet_header) if packet_header else None # ignore si le header est invalide if not packet_header: return None # ignore si le header est invalide
packet_type = cls.cls_from_header(packet_header)
@classmethod # renvoie les données instanciées
def instance_from_connection(cls, connection: socket.socket) -> Optional["Packet"]: return packet_type.from_bytes(connection.recv(packet_type.packet_size))
"""
Receive a packet instance data from a socket.
:param connection: the socket where to get the data from
:return: the packet, or None if there was nothing in the socket to receive.
"""
return cls.from_bytes(connection.recv(cls.packet_size))
@classmethod
def from_connection(cls, connection: socket.socket) -> Optional[Type["Packet"]]:
"""
Receive a packet from a socket.
:param connection: the socket where to get the data from
:return: the packet, or None if there was nothing in the socket to receive.
"""
subcls = cls.cls_from_connection(connection)
return None if subcls is None else subcls.instance_from_connection(connection)