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https://github.com/python-telegram-bot/python-telegram-bot.git
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137 lines
4.7 KiB
Python
137 lines
4.7 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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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 Filters(object):
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"""
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Convenient namespace (class) & methods for the filter funcs of the
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MessageHandler class.
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"""
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@staticmethod
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def text(message):
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return message.text and not message.text.startswith('/')
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@staticmethod
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def command(message):
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return message.text and message.text.startswith('/')
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@staticmethod
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def audio(message):
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return bool(message.audio)
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@staticmethod
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def document(message):
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return bool(message.document)
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@staticmethod
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def photo(message):
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return bool(message.photo)
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@staticmethod
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def sticker(message):
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return bool(message.sticker)
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@staticmethod
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def video(message):
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return bool(message.video)
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@staticmethod
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def voice(message):
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return bool(message.voice)
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@staticmethod
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def contact(message):
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return bool(message.contact)
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@staticmethod
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def location(message):
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return bool(message.location)
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@staticmethod
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def venue(message):
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return bool(message.venue)
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@staticmethod
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def status_update(message):
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return bool(message.new_chat_member or message.left_chat_member or message.new_chat_title
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or message.new_chat_photo or message.delete_chat_photo
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or message.group_chat_created or message.supergroup_chat_created
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or message.channel_chat_created or message.migrate_to_chat_id
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or message.migrate_from_chat_id or message.pinned_message)
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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 (list[function]): A list of filter functions. Standard filters
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can be found in the Filters class above.
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| Each `function` takes ``Update`` as arg and returns ``bool``.
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| All messages that match at least one of those filters will be
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accepted. If ``bool(filters)`` evaluates to ``False``, messages are
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not filtered.
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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, filters, callback, allow_edited=False, pass_update_queue=False):
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super(MessageHandler, self).__init__(callback, pass_update_queue)
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self.filters = filters
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self.allow_edited = allow_edited
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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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res = any(func(message) for func in self.filters)
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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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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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