60 lines
No EOL
1.5 KiB
Python
60 lines
No EOL
1.5 KiB
Python
import json
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import socket
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import struct
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import time
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import DataTypes
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class ESock:
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def __init__(self, sock):
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self._sock = sock
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def __getattr__(self, attr):
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if attr == "recv":
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return self.recv
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elif attr == "send":
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return self.send
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elif attr == "_ESock__dict":
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return self.__eq__
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return getattr(self._sock, attr)
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def recv(self):
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raw_metadata = self._sock.recv(8)
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if raw_metadata == b"":
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self._sock.close()
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raise socket.error("Connection closed")
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metadata = struct.unpack("cI", raw_metadata)
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data_type = metadata[0]
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data_length = metadata[1]
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data = b''
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bufsize = 4096
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while len(data) < data_length:
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if len(data) + bufsize <= data_length:
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packet = self._sock.recv(bufsize)
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else:
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packet = self._sock.recv(data_length % bufsize)
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if not packet:
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return None
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data += packet
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if data_type == DataTypes.str:
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data = data.decode()
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elif data_type == DataTypes.json:
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data = json.loads(data.decode())
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return data
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def send(self, data):
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data_type = type(data)
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if data_type is str:
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data = data.encode()
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self.sendall(struct.pack("cI", DataTypes.str, len(data)) + data)
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elif data_type is dict or data_type is list:
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data = json.dumps(data).encode()
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self.sendall(struct.pack("cI", DataTypes.json, len(data)) + data)
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elif data_type is bytes:
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self.sendall(struct.pack("cI", DataTypes.bin, len(data)) + data)
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else:
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self.sendall(struct.pack("cI", DataTypes.other, len(data)) + data)
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def __eq__(self, other):
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return self.__dict == other.__dict__ |