mirror of
https://github.com/LonamiWebs/Telethon.git
synced 2024-11-14 21:46:38 +03:00
44 lines
1.2 KiB
Python
44 lines
1.2 KiB
Python
import struct
|
|
|
|
from .connection import Connection
|
|
|
|
|
|
class ConnectionTcpAbridged(Connection):
|
|
"""
|
|
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).
|
|
"""
|
|
async def connect(self, timeout=None, ssl=None):
|
|
await super().connect(timeout=timeout, ssl=ssl)
|
|
await self.send(b'\xef')
|
|
|
|
def _write(self, data):
|
|
"""
|
|
Define wrapper write methods for `TcpObfuscated` to override.
|
|
"""
|
|
self._writer.write(data)
|
|
|
|
async def _read(self, n):
|
|
"""
|
|
Define wrapper read methods for `TcpObfuscated` to override.
|
|
"""
|
|
return await self._reader.readexactly(n)
|
|
|
|
def _send(self, data):
|
|
length = len(data) >> 2
|
|
if length < 127:
|
|
length = struct.pack('B', length)
|
|
else:
|
|
length = b'\x7f' + int.to_bytes(length, 3, 'little')
|
|
|
|
self._write(length + data)
|
|
|
|
async def _recv(self):
|
|
length = struct.unpack('<B', await self._read(1))[0]
|
|
if length >= 127:
|
|
length = struct.unpack(
|
|
'<i', await self._read(3) + b'\0')[0]
|
|
|
|
return await self._read(length << 2)
|