mirror of
https://github.com/LonamiWebs/Telethon.git
synced 2024-11-25 19:03:46 +03:00
75a648f438
Some fixes include, in more detail: - Using little over big endianess in some parts - Flagging all the constructor numbers as unsigned - Fixed bugs with factorizer - Implemented TLSharp's RSA
48 lines
1.8 KiB
Python
Executable File
48 lines
1.8 KiB
Python
Executable File
# This file is based on TLSharp
|
|
# https://github.com/sochix/TLSharp/blob/master/TLSharp.Core/Network/MtProtoPlainSender.cs
|
|
import time
|
|
from utils.binary_writer import BinaryWriter
|
|
from utils.binary_reader import BinaryReader
|
|
|
|
|
|
class MtProtoPlainSender:
|
|
"""MTProto Mobile Protocol plain sender (https://core.telegram.org/mtproto/description#unencrypted-messages)"""
|
|
def __init__(self, transport):
|
|
self._sequence = 0
|
|
self._time_offset = 0
|
|
self._last_msg_id = 0
|
|
self._transport = transport
|
|
|
|
def send(self, data):
|
|
"""Sends a plain packet (auth_key_id = 0) containing the given message body (data)"""
|
|
with BinaryWriter() as writer:
|
|
writer.write_long(0)
|
|
writer.write_long(self.get_new_msg_id())
|
|
writer.write_int(len(data))
|
|
writer.write(data)
|
|
|
|
packet = writer.get_bytes()
|
|
self._transport.send(packet)
|
|
|
|
def receive(self):
|
|
"""Receives a plain packet, returning the body of the response"""
|
|
result = self._transport.receive()
|
|
with BinaryReader(result.body) as reader:
|
|
auth_key_id = reader.read_long()
|
|
msg_id = reader.read_long()
|
|
message_length = reader.read_int()
|
|
|
|
response = reader.read(message_length)
|
|
return response
|
|
|
|
def get_new_msg_id(self):
|
|
"""Generates a new message ID based on the current time (in ms) since epoch"""
|
|
new_msg_id = int(self._time_offset + time.time() * 1000) # Multiply by 1000 to get milliseconds
|
|
|
|
# Ensure that we always return a message ID which is higher than the previous one
|
|
if self._last_msg_id >= new_msg_id:
|
|
new_msg_id = self._last_msg_id + 4
|
|
|
|
self._last_msg_id = new_msg_id
|
|
return new_msg_id
|