python-telegram-bot/telegram/ext/regexhandler.py
Bibo-Joshi 92b9370c23
Improve Code Quality (#2131)
* Make pre-commit more strict

* Get pylint to read setup.cfg

* Make pylint & mypy happy aka ignore all the things

* use LogRecord.getMessage() in tests

* Make noam happy

* Update both pylint & mypy while we're at it

* Bring reqs-dev and makefile up to speed

* try making pre-commit happy

* fix jobqueue tests on the fly
2020-10-31 16:33:34 +01:00

158 lines
7.3 KiB
Python

#!/usr/bin/env python
#
# A library that provides a Python interface to the Telegram Bot API
# Copyright (C) 2015-2020
# Leandro Toledo de Souza <devs@python-telegram-bot.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 Public License for more details.
#
# You should have received a copy of the GNU Lesser Public License
# along with this program. If not, see [http://www.gnu.org/licenses/].
# TODO: Remove allow_edited
"""This module contains the RegexHandler class."""
import warnings
from typing import TYPE_CHECKING, Any, Callable, Dict, Optional, Pattern, TypeVar, Union
from telegram.ext import Filters, MessageHandler
from telegram.utils.deprecate import TelegramDeprecationWarning
from telegram.utils.types import HandlerArg
if TYPE_CHECKING:
from telegram.ext import CallbackContext, Dispatcher
RT = TypeVar('RT')
class RegexHandler(MessageHandler):
"""Handler class to handle Telegram updates based on a regex.
It uses a regular expression to check text messages. Read the documentation of the ``re``
module for more information. The ``re.match`` function is used to determine if an update should
be handled by this handler.
Attributes:
pattern (:obj:`str` | :obj:`Pattern`): The regex pattern.
callback (:obj:`callable`): The callback function for this handler.
pass_groups (:obj:`bool`): Determines whether ``groups`` will be passed to the
callback function.
pass_groupdict (:obj:`bool`): Determines whether ``groupdict``. will be passed to
the callback function.
pass_update_queue (:obj:`bool`): Determines whether ``update_queue`` will be
passed to the callback function.
pass_job_queue (:obj:`bool`): Determines whether ``job_queue`` will be passed to
the callback function.
pass_user_data (:obj:`bool`): Determines whether ``user_data`` will be passed to
the callback function.
pass_chat_data (:obj:`bool`): Determines whether ``chat_data`` will be passed to
the callback function.
run_async (:obj:`bool`): Determines whether the callback will run asynchronously.
Note:
This handler is being deprecated. For the same use case use:
``MessageHandler(Filters.regex(r'pattern'), callback)``
Warning:
When setting ``run_async`` to :obj:`True`, you cannot rely on adding custom
attributes to :class:`telegram.ext.CallbackContext`. See its docs for more info.
Args:
pattern (:obj:`str` | :obj:`Pattern`): The regex pattern.
callback (:obj:`callable`): The callback function for this handler. Will be called when
:attr:`check_update` has determined that an update should be processed by this handler.
Callback signature for context based API:
``def callback(update: Update, context: CallbackContext)``
The return value of the callback is usually ignored except for the special case of
:class:`telegram.ext.ConversationHandler`.
pass_groups (:obj:`bool`, optional): If the callback should be passed the result of
``re.match(pattern, data).groups()`` as a keyword argument called ``groups``.
Default is :obj:`False`
pass_groupdict (:obj:`bool`, optional): If the callback should be passed the result of
``re.match(pattern, data).groupdict()`` as a keyword argument called ``groupdict``.
Default is :obj:`False`
pass_update_queue (:obj:`bool`, optional): If set to :obj:`True`, a keyword argument called
``update_queue`` will be passed to the callback function. It will be the ``Queue``
instance used by the :class:`telegram.ext.Updater` and :class:`telegram.ext.Dispatcher`
that contains new updates which can be used to insert updates. Default is :obj:`False`.
pass_job_queue (:obj:`bool`, optional): If set to :obj:`True`, a keyword argument called
``job_queue`` will be passed to the callback function. It will be a
:class:`telegram.ext.JobQueue` instance created by the :class:`telegram.ext.Updater`
which can be used to schedule new jobs. Default is :obj:`False`.
pass_user_data (:obj:`bool`, optional): If set to :obj:`True`, a keyword argument called
``user_data`` will be passed to the callback function. Default is :obj:`False`.
pass_chat_data (:obj:`bool`, optional): If set to :obj:`True`, a keyword argument called
``chat_data`` will be passed to the callback function. Default is :obj:`False`.
message_updates (:obj:`bool`, optional): Should "normal" message updates be handled?
Default is :obj:`True`.
channel_post_updates (:obj:`bool`, optional): Should channel posts updates be handled?
Default is :obj:`True`.
edited_updates (:obj:`bool`, optional): Should "edited" message updates be handled? Default
is :obj:`False`.
run_async (:obj:`bool`): Determines whether the callback will run asynchronously.
Defaults to :obj:`False`.
Raises:
ValueError
"""
def __init__(
self,
pattern: Union[str, Pattern],
callback: Callable[[HandlerArg, 'CallbackContext'], RT],
pass_groups: bool = False,
pass_groupdict: bool = False,
pass_update_queue: bool = False,
pass_job_queue: bool = False,
pass_user_data: bool = False,
pass_chat_data: bool = False,
allow_edited: bool = False, # pylint: disable=W0613
message_updates: bool = True,
channel_post_updates: bool = False,
edited_updates: bool = False,
run_async: bool = False,
):
warnings.warn(
'RegexHandler is deprecated. See https://git.io/fxJuV for more info',
TelegramDeprecationWarning,
stacklevel=2,
)
super().__init__(
Filters.regex(pattern),
callback,
pass_update_queue=pass_update_queue,
pass_job_queue=pass_job_queue,
pass_user_data=pass_user_data,
pass_chat_data=pass_chat_data,
message_updates=message_updates,
channel_post_updates=channel_post_updates,
edited_updates=edited_updates,
run_async=run_async,
)
self.pass_groups = pass_groups
self.pass_groupdict = pass_groupdict
def collect_optional_args(
self,
dispatcher: 'Dispatcher',
update: HandlerArg = None,
check_result: Optional[Union[bool, Dict[str, Any]]] = None,
) -> Dict[str, Any]:
optional_args = super().collect_optional_args(dispatcher, update, check_result)
if isinstance(check_result, dict):
if self.pass_groups:
optional_args['groups'] = check_result['matches'][0].groups()
if self.pass_groupdict:
optional_args['groupdict'] = check_result['matches'][0].groupdict()
return optional_args