85 lines
2.2 KiB
Python
85 lines
2.2 KiB
Python
# Pyrogram - Telegram MTProto API Client Library for Python
|
|
# Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
|
|
#
|
|
# This file is part of Pyrogram.
|
|
#
|
|
# Pyrogram is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Lesser General Public License as published
|
|
# by the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# Pyrogram is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public License
|
|
# along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
from base64 import b64decode, b64encode
|
|
|
|
from ...api import types
|
|
|
|
|
|
def decode(s: str) -> bytes:
|
|
s = b64decode(s + "=" * (-len(s) % 4), "-_")
|
|
r = b""
|
|
|
|
assert s[-1] == 2
|
|
|
|
i = 0
|
|
while i < len(s) - 1:
|
|
if s[i] != 0:
|
|
r += bytes([s[i]])
|
|
else:
|
|
r += b"\x00" * s[i + 1]
|
|
i += 1
|
|
|
|
i += 1
|
|
|
|
return r
|
|
|
|
|
|
def encode(s: bytes) -> str:
|
|
r = b""
|
|
n = 0
|
|
|
|
for i in s + bytes([2]):
|
|
if i == 0:
|
|
n += 1
|
|
else:
|
|
if n:
|
|
r += b"\x00" + bytes([n])
|
|
n = 0
|
|
|
|
r += bytes([i])
|
|
|
|
return b64encode(r, b"-_").decode().rstrip("=")
|
|
|
|
|
|
def get_peer_id(input_peer) -> int:
|
|
return (
|
|
input_peer.user_id if isinstance(input_peer, types.InputPeerUser)
|
|
else -input_peer.chat_id if isinstance(input_peer, types.InputPeerChat)
|
|
else int("-100" + str(input_peer.channel_id))
|
|
)
|
|
|
|
|
|
def get_input_peer(peer_id: int, access_hash: int):
|
|
return (
|
|
types.InputPeerUser(peer_id, access_hash) if peer_id > 0
|
|
else types.InputPeerChannel(int(str(peer_id)[4:]), access_hash)
|
|
if (str(peer_id).startswith("-100") and access_hash)
|
|
else types.InputPeerChat(-peer_id)
|
|
)
|
|
|
|
|
|
def get_offset_date(dialogs):
|
|
for m in reversed(dialogs.messages):
|
|
if isinstance(m, types.MessageEmpty):
|
|
continue
|
|
else:
|
|
return m.date
|
|
else:
|
|
return 0
|