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132 lines
6.6 KiB
Python
132 lines
6.6 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) 2015-2020
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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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# TODO: Remove allow_edited
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"""This module contains the RegexHandler class."""
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import warnings
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from telegram.utils.deprecate import TelegramDeprecationWarning
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from telegram.ext import MessageHandler, Filters
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class RegexHandler(MessageHandler):
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"""Handler class to handle Telegram updates based on a regex.
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It uses a regular expression to check text messages. Read the documentation of the ``re``
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module for more information. The ``re.match`` function is used to determine if an update should
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be handled by this handler.
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Attributes:
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pattern (:obj:`str` | :obj:`Pattern`): The regex pattern.
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callback (:obj:`callable`): The callback function for this handler.
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pass_groups (:obj:`bool`): Determines whether ``groups`` will be passed to the
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callback function.
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pass_groupdict (:obj:`bool`): Determines whether ``groupdict``. will be passed to
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the callback function.
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pass_update_queue (:obj:`bool`): Determines whether ``update_queue`` will be
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passed to the callback function.
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pass_job_queue (:obj:`bool`): Determines whether ``job_queue`` will be passed to
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the callback function.
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pass_user_data (:obj:`bool`): Determines whether ``user_data`` will be passed to
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the callback function.
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pass_chat_data (:obj:`bool`): Determines whether ``chat_data`` will be passed to
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the callback function.
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Note:
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This handler is being deprecated. For the same usecase use:
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``MessageHandler(Filters.regex(r'pattern'), callback)``
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Args:
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pattern (:obj:`str` | :obj:`Pattern`): The regex pattern.
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callback (:obj:`callable`): The callback function for this handler. Will be called when
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:attr:`check_update` has determined that an update should be processed by this handler.
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Callback signature for context based API:
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``def callback(update: Update, context: CallbackContext)``
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The return value of the callback is usually ignored except for the special case of
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:class:`telegram.ext.ConversationHandler`.
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pass_groups (:obj:`bool`, optional): If the callback should be passed the result of
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``re.match(pattern, data).groups()`` as a keyword argument called ``groups``.
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Default is ``False``
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pass_groupdict (:obj:`bool`, optional): If the callback should be passed the result of
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``re.match(pattern, data).groupdict()`` as a keyword argument called ``groupdict``.
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Default is ``False``
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pass_update_queue (:obj:`bool`, optional): If set to ``True``, a keyword argument called
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``update_queue`` will be passed to the callback function. It will be the ``Queue``
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instance used by the :class:`telegram.ext.Updater` and :class:`telegram.ext.Dispatcher`
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that contains new updates which can be used to insert updates. Default is ``False``.
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pass_job_queue (:obj:`bool`, optional): If set to ``True``, a keyword argument called
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``job_queue`` will be passed to the callback function. It will be a
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:class:`telegram.ext.JobQueue` instance created by the :class:`telegram.ext.Updater`
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which can be used to schedule new jobs. Default is ``False``.
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pass_user_data (:obj:`bool`, optional): If set to ``True``, a keyword argument called
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``user_data`` will be passed to the callback function. Default is ``False``.
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pass_chat_data (:obj:`bool`, optional): If set to ``True``, a keyword argument called
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``chat_data`` will be passed to the callback function. Default is ``False``.
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message_updates (:obj:`bool`, optional): Should "normal" message updates be handled?
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Default is ``True``.
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channel_post_updates (:obj:`bool`, optional): Should channel posts updates be handled?
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Default is ``True``.
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edited_updates (:obj:`bool`, optional): Should "edited" message updates be handled? Default
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is ``False``.
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Raises:
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ValueError
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"""
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def __init__(self,
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pattern,
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callback,
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pass_groups=False,
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pass_groupdict=False,
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pass_update_queue=False,
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pass_job_queue=False,
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pass_user_data=False,
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pass_chat_data=False,
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allow_edited=False,
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message_updates=True,
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channel_post_updates=False,
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edited_updates=False):
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warnings.warn('RegexHandler is deprecated. See https://git.io/fxJuV for more info',
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TelegramDeprecationWarning,
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stacklevel=2)
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super(RegexHandler, self).__init__(Filters.regex(pattern),
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callback,
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pass_update_queue=pass_update_queue,
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pass_job_queue=pass_job_queue,
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pass_user_data=pass_user_data,
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pass_chat_data=pass_chat_data,
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message_updates=message_updates,
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channel_post_updates=channel_post_updates,
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edited_updates=edited_updates)
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self.pass_groups = pass_groups
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self.pass_groupdict = pass_groupdict
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def collect_optional_args(self, dispatcher, update=None, check_result=None):
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optional_args = super(RegexHandler, self).collect_optional_args(dispatcher, update,
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check_result)
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if self.pass_groups:
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optional_args['groups'] = check_result['matches'][0].groups()
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if self.pass_groupdict:
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optional_args['groupdict'] = check_result['matches'][0].groupdict()
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return optional_args
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