mirror of
https://github.com/LonamiWebs/Telethon.git
synced 2024-11-23 18:03:46 +03:00
35 lines
961 B
Python
35 lines
961 B
Python
|
import struct
|
||
|
|
|
||
|
|
from .tcpfull import ConnectionTcpFull
|
||
|
|
|
||
|
|
|
||
|
|
class ConnectionTcpAbridged(ConnectionTcpFull):
|
||
|
|
"""
|
||
|
|
This is the mode with the lowest overhead, as it will
|
||
|
|
only require 1 byte if the packet length is less than
|
||
|
|
508 bytes (127 << 2, which is very common).
|
||
|
|
"""
|
||
|
|
def connect(self, ip, port):
|
||
|
|
result = super().connect(ip, port)
|
||
|
|
self.conn.write(b'\xef')
|
||
|
|
return result
|
||
|
|
|
||
|
|
def clone(self):
|
||
|
|
return ConnectionTcpAbridged(self._proxy, self._timeout)
|
||
|
|
|
||
|
|
def recv(self):
|
||
|
|
length = struct.unpack('<B', self.read(1))[0]
|
||
|
|
if length >= 127:
|
||
|
|
length = struct.unpack('<i', self.read(3) + b'\0')[0]
|
||
|
|
|
||
|
|
return self.read(length << 2)
|
||
|
|
|
||
|
|
def send(self, message):
|
||
|
|
length = len(message) >> 2
|
||
|
|
if length < 127:
|
||
|
|
length = struct.pack('B', length)
|
||
|
|
else:
|
||
|
|
length = b'\x7f' + int.to_bytes(length, 3, 'little')
|
||
|
|
|
||
|
|
self.write(length + message)
|