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https://github.com/python-telegram-bot/python-telegram-bot.git
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94 lines
3.8 KiB
Python
94 lines
3.8 KiB
Python
#!/usr/bin/env python
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#
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# A library that provides a Python interface to the Telegram Bot API
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# Copyright (C) 2015-2016
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# Leandro Toledo de Souza <devs@python-telegram-bot.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser Public License as published by
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# 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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# This program 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 Public License for more details.
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#
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# You should have received a copy of the GNU Lesser Public License
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# along with this program. If not, see [http://www.gnu.org/licenses/].
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""" This module contains the MessageHandler class """
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import warnings
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from .handler import Handler
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from telegram import Update
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from telegram.utils.deprecate import deprecate
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class MessageHandler(Handler):
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"""
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Handler class to handle telegram messages. Messages are Telegram Updates
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that do not contain a command. They might contain text, media or status
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updates.
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Args:
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filters (telegram.ext.BaseFilter): A filter inheriting from
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:class:`telegram.filters.BaseFilter`. Standard filters can be found in
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:class:`telegram.filters.Filters`. Filters can be combined using bitwise
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operators (& for and, | for or).
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callback (function): A function that takes ``bot, update`` as
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positional arguments. It will be called when the ``check_update``
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has determined that an update should be processed by this handler.
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allow_edited (Optional[bool]): If the handler should also accept edited messages.
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Default is ``False``
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pass_update_queue (optional[bool]): If the handler should be passed the
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update queue as a keyword argument called ``update_queue``. It can
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be used to insert updates. Default is ``False``
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"""
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def __init__(self,
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filters,
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callback,
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allow_edited=False,
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pass_update_queue=False,
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pass_job_queue=False):
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super(MessageHandler, self).__init__(
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callback, pass_update_queue=pass_update_queue, pass_job_queue=pass_job_queue)
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self.filters = filters
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self.allow_edited = allow_edited
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# We put this up here instead of with the rest of checking code
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# in check_update since we don't wanna spam a ton
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if isinstance(self.filters, list):
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warnings.warn('Using a list of filters in MessageHandler is getting '
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'deprecated, please use bitwise operators (& and |) '
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'instead. More info: https://git.io/vPTbc.')
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def check_update(self, update):
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if (isinstance(update, Update)
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and (update.message or update.edited_message and self.allow_edited)):
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if not self.filters:
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res = True
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else:
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message = update.message or update.edited_message
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if isinstance(self.filters, list):
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res = any(func(message) for func in self.filters)
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else:
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res = self.filters(message)
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else:
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res = False
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return res
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def handle_update(self, update, dispatcher):
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optional_args = self.collect_optional_args(dispatcher)
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return self.callback(dispatcher.bot, update, **optional_args)
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# old non-PEP8 Handler methods
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m = "telegram.MessageHandler."
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checkUpdate = deprecate(check_update, m + "checkUpdate", m + "check_update")
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handleUpdate = deprecate(handle_update, m + "handleUpdate", m + "handle_update")
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