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# Pyrogram - Telegram MTProto API Client Library for Python
# Copyright (C) 2017-2021 Dan <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/>.
import asyncio
import base64
import functools
import hashlib
import os
import struct
from concurrent.futures.thread import ThreadPoolExecutor
from getpass import getpass
from typing import Union, List, Dict, Optional
import pyrogram
from pyrogram import raw
from pyrogram import types
from pyrogram.file_id import FileId, FileType, PHOTO_TYPES, DOCUMENT_TYPES
async def ainput(prompt: str = "", *, hide: bool = False):
"""Just like the built-in input, but async"""
with ThreadPoolExecutor(1) as executor:
func = functools.partial(getpass if hide else input, prompt)
return await asyncio.get_event_loop().run_in_executor(executor, func)
def get_input_media_from_file_id(
file_id: str,
expected_file_type: FileType = None
) -> Union["raw.types.InputMediaPhoto", "raw.types.InputMediaDocument"]:
try:
decoded = FileId.decode(file_id)
except Exception:
raise ValueError(f'Failed to decode "{file_id}". The value does not represent an existing local file, '
f'HTTP URL, or valid file id.')
file_type = decoded.file_type
if expected_file_type is not None and file_type != expected_file_type:
raise ValueError(f"Expected {expected_file_type.name}, got {file_type.name} file id instead")
if file_type in (FileType.THUMBNAIL, FileType.CHAT_PHOTO):
raise ValueError(f"This file id can only be used for download: {file_id}")
if file_type in PHOTO_TYPES:
return raw.types.InputMediaPhoto(
id=raw.types.InputPhoto(
id=decoded.media_id,
access_hash=decoded.access_hash,
file_reference=decoded.file_reference
)
)
if file_type in DOCUMENT_TYPES:
return raw.types.InputMediaDocument(
id=raw.types.InputDocument(
id=decoded.media_id,
access_hash=decoded.access_hash,
file_reference=decoded.file_reference
)
)
raise ValueError(f"Unknown file id: {file_id}")
async def parse_messages(client, messages: "raw.types.messages.Messages", replies: int = 1) -> List["types.Message"]:
users = {i.id: i for i in messages.users}
chats = {i.id: i for i in messages.chats}
if not messages.messages:
return types.List()
parsed_messages = []
for message in messages.messages:
parsed_messages.append(await types.Message._parse(client, message, users, chats, replies=0))
if replies:
messages_with_replies = {
i.id: i.reply_to.reply_to_msg_id
for i in messages.messages
if not isinstance(i, raw.types.MessageEmpty) and i.reply_to
}
if messages_with_replies:
# We need a chat id, but some messages might be empty (no chat attribute available)
# Scan until we find a message with a chat available (there must be one, because we are fetching replies)
for m in parsed_messages:
if m.chat:
chat_id = m.chat.id
break
else:
chat_id = 0
reply_messages = await client.get_messages(
chat_id,
reply_to_message_ids=messages_with_replies.keys(),
replies=replies - 1
)
for message in parsed_messages:
reply_id = messages_with_replies.get(message.message_id, None)
for reply in reply_messages:
if reply.message_id == reply_id:
message.reply_to_message = reply
return types.List(parsed_messages)
def parse_deleted_messages(client, update) -> List["types.Message"]:
messages = update.messages
channel_id = getattr(update, "channel_id", None)
parsed_messages = []
for message in messages:
parsed_messages.append(
types.Message(
message_id=message,
chat=types.Chat(
id=get_channel_id(channel_id),
type="channel",
client=client
) if channel_id is not None else None,
client=client
)
)
return types.List(parsed_messages)
def unpack_inline_message_id(inline_message_id: str) -> "raw.types.InputBotInlineMessageID":
r = inline_message_id + "=" * (-len(inline_message_id) % 4)
r = struct.unpack("<iqq", base64.b64decode(r, altchars=b"-_"))
return raw.types.InputBotInlineMessageID(
dc_id=r[0],
id=r[1],
access_hash=r[2]
)
MIN_CHANNEL_ID = -1002147483647
MAX_CHANNEL_ID = -1000000000000
MIN_CHAT_ID = -2147483647
MAX_USER_ID = 999999999999
def get_raw_peer_id(peer: raw.base.Peer) -> Optional[int]:
"""Get the raw peer id from a Peer object"""
if isinstance(peer, raw.types.PeerUser):
return peer.user_id
if isinstance(peer, raw.types.PeerChat):
return peer.chat_id
if isinstance(peer, raw.types.PeerChannel):
return peer.channel_id
return None
def get_peer_id(peer: raw.base.Peer) -> int:
"""Get the non-raw peer id from a Peer object"""
if isinstance(peer, raw.types.PeerUser):
return peer.user_id
if isinstance(peer, raw.types.PeerChat):
return -peer.chat_id
if isinstance(peer, raw.types.PeerChannel):
return MAX_CHANNEL_ID - peer.channel_id
raise ValueError(f"Peer type invalid: {peer}")
def get_peer_type(peer_id: int) -> str:
if peer_id < 0:
if MIN_CHAT_ID <= peer_id:
return "chat"
if MIN_CHANNEL_ID <= peer_id < MAX_CHANNEL_ID:
return "channel"
elif 0 < peer_id <= MAX_USER_ID:
return "user"
raise ValueError(f"Peer id invalid: {peer_id}")
def get_channel_id(peer_id: int) -> int:
return MAX_CHANNEL_ID - peer_id
def btoi(b: bytes) -> int:
return int.from_bytes(b, "big")
def itob(i: int) -> bytes:
return i.to_bytes(256, "big")
def sha256(data: bytes) -> bytes:
return hashlib.sha256(data).digest()
def xor(a: bytes, b: bytes) -> bytes:
return bytes(i ^ j for i, j in zip(a, b))
def compute_password_hash(algo: raw.types.PasswordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow,
password: str) -> bytes:
hash1 = sha256(algo.salt1 + password.encode() + algo.salt1)
hash2 = sha256(algo.salt2 + hash1 + algo.salt2)
hash3 = hashlib.pbkdf2_hmac("sha512", hash2, algo.salt1, 100000)
return sha256(algo.salt2 + hash3 + algo.salt2)
# noinspection PyPep8Naming
def compute_password_check(r: raw.types.account.Password, password: str) -> raw.types.InputCheckPasswordSRP:
algo = r.current_algo
p_bytes = algo.p
p = btoi(algo.p)
g_bytes = itob(algo.g)
g = algo.g
B_bytes = r.srp_B
B = btoi(B_bytes)
srp_id = r.srp_id
x_bytes = compute_password_hash(algo, password)
x = btoi(x_bytes)
g_x = pow(g, x, p)
k_bytes = sha256(p_bytes + g_bytes)
k = btoi(k_bytes)
kg_x = (k * g_x) % p
while True:
a_bytes = os.urandom(256)
a = btoi(a_bytes)
A = pow(g, a, p)
A_bytes = itob(A)
u = btoi(sha256(A_bytes + B_bytes))
if u > 0:
break
g_b = (B - kg_x) % p
ux = u * x
a_ux = a + ux
S = pow(g_b, a_ux, p)
S_bytes = itob(S)
K_bytes = sha256(S_bytes)
M1_bytes = sha256(
xor(sha256(p_bytes), sha256(g_bytes))
+ sha256(algo.salt1)
+ sha256(algo.salt2)
+ A_bytes
+ B_bytes
+ K_bytes
)
return raw.types.InputCheckPasswordSRP(srp_id=srp_id, A=A_bytes, M1=M1_bytes)
async def parse_text_entities(
client: "pyrogram.Client",
text: str,
parse_mode: str,
entities: List["types.MessageEntity"]
) -> Dict[str, raw.base.MessageEntity]:
if entities:
# Inject the client instance because parsing user mentions requires it
for entity in entities:
entity._client = client
text, entities = text, [await entity.write() for entity in entities]
else:
text, entities = (await client.parser.parse(text, parse_mode)).values()
return {
"message": text,
"entities": entities
}
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