mirror of
https://github.com/Mayuri-Chan/pyrofork.git
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151 lines
No EOL
6.1 KiB
Python
151 lines
No EOL
6.1 KiB
Python
# Pyrofork - Telegram MTProto API Client Library for Python
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# Copyright (C) 2017-present Dan <https://github.com/delivrance>
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# Copyright (C) 2022-present Mayuri-Chan <https://github.com/Mayuri-Chan>
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#
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# This file is part of Pyrofork.
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#
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# Pyrofork is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Pyrofork is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with Pyrofork. If not, see <http://www.gnu.org/licenses/>.
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from inspect import iscoroutinefunction
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from typing import Callable
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import pyrogram
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from pyrogram.types import Message, Identifier
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from .handler import Handler
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class MessageHandler(Handler):
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"""The Message handler class. Used to handle new messages.
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It is intended to be used with :meth:`~pyrogram.Client.add_handler`
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For a nicer way to register this handler, have a look at the
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:meth:`~pyrogram.Client.on_message` decorator.
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Parameters:
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callback (``Callable``):
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Pass a function that will be called when a new Message arrives. It takes *(client, message)*
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as positional arguments (look at the section below for a detailed description).
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filters (:obj:`Filters`):
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Pass one or more filters to allow only a subset of messages to be passed
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in your callback function.
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Other parameters:
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client (:obj:`~pyrogram.Client`):
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The Client itself, useful when you want to call other API methods inside the message handler.
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message (:obj:`~pyrogram.types.Message`):
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The received message.
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"""
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def __init__(self, callback: Callable, filters=None):
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self.original_callback = callback
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super().__init__(self.resolve_future_or_callback, filters)
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async def check_if_has_matching_listener(self, client: "pyrogram.Client", message: Message):
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"""
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Checks if the message has a matching listener.
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:param client: The Client object to check with.
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:param message: The Message object to check with.
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:return: A tuple of whether the message has a matching listener and its filters does match with the Message
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and the matching listener;
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"""
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from_user = message.from_user
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from_user_id = from_user.id if from_user else None
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from_user_username = from_user.username if from_user else None
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message_id = getattr(message, "id", getattr(message, "message_id", None))
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data = Identifier(
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message_id=message_id,
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chat_id=[message.chat.id, message.chat.username],
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from_user_id=[from_user_id, from_user_username],
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)
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listener = client.get_listener_matching_with_data(data, pyrogram.enums.ListenerTypes.MESSAGE)
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listener_does_match = False
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if listener:
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filters = listener.filters
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if callable(filters):
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if iscoroutinefunction(filters.__call__):
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listener_does_match = await filters(client, message)
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else:
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listener_does_match = await client.loop.run_in_executor(
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None, filters, client, message
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)
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else:
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listener_does_match = True
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return listener_does_match, listener
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async def check(self, client: "pyrogram.Client", message: Message):
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"""
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Checks if the message has a matching listener or handler and its filters does match with the Message.
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:param client: Client object to check with.
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:param message: Message object to check with.
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:return: Whether the message has a matching listener or handler and its filters does match with the Message.
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"""
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listener_does_match = (
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await self.check_if_has_matching_listener(client, message)
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)[0] if message.chat is not None and message.from_user is not None else False
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if callable(self.filters):
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if iscoroutinefunction(self.filters.__call__):
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handler_does_match = await self.filters(client, message)
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else:
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handler_does_match = await client.loop.run_in_executor(
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None, self.filters, client, message
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)
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else:
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handler_does_match = True
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# let handler get the chance to handle if listener
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# exists but its filters doesn't match
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return listener_does_match or handler_does_match
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async def resolve_future_or_callback(self, client: "pyrogram.Client", message: Message, *args):
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"""
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Resolves the future or calls the callback of the listener if the message has a matching listener.
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:param client: Client object to resolve or call with.
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:param message: Message object to resolve or call with.
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:param args: Arguments to call the callback with.
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:return: None
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"""
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listener_does_match, listener = await self.check_if_has_matching_listener(
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client, message
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) if message.chat is not None and message.from_user is not None else False, None
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if listener and listener_does_match:
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client.remove_listener(listener)
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if listener.future and not listener.future.done():
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listener.future.set_result(message)
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raise pyrogram.StopPropagation
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elif listener.callback:
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if iscoroutinefunction(listener.callback):
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await listener.callback(client, message, *args)
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else:
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listener.callback(client, message, *args)
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raise pyrogram.StopPropagation
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else:
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raise ValueError("Listener must have either a future or a callback")
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else:
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await self.original_callback(client, message, *args) |