python-telegram-bot/telegram/ext/regexhandler.py
Eldinnie 2c5eade4f0 Update Filters, CommandHandler and MessageHandler (#1221)
* update_filter attribute on filters

Makes it possible to have filters work on an update instead of message, while keeping behavior for current filters

* add update_type filter

* Messagehandler rework

- remove allow_edited (deprecated for a while)
- set deprecated defaults to None
- Raise deprecation warning when they're used
- add sensible defaults for filters.
- rework tests

* Commandhandler rework

* Remove deprecation test from new handler

* Some tweaks per CR

- rename update_types -> updates
- added some clarification to docstrings

* run webhook set test only on 3.6 on appveyor

* update_filter attribute on filters

Makes it possible to have filters work on an update instead of message, while keeping behavior for current filters

* add update_type filter

* Messagehandler rework

- remove allow_edited (deprecated for a while)
- set deprecated defaults to None
- Raise deprecation warning when they're used
- add sensible defaults for filters.
- rework tests

* Commandhandler rework

* Remove deprecation test from new handler

* Some tweaks per CR

- rename update_types -> updates
- added some clarification to docstrings

* run webhook set test only on 3.6 on appveyor

* Changes per CR

* Update travis to build v12

* small doc update

* try to make ci build version branches

* doc for BaseFilter

* Modify regexfilter and mergedfilter

Now returns a list of match objects for every regexfilter

* Change callbackcontext (+ docs)

* integrate in CommandHandler and PrefixHandler

* integrate in MessageHandler

* cbqhandler, iqhandler and srhandler

* make regexhandler a shell over MessageHandler

And raise deprecationWarning on creation

* clean up code and add some comments

* Rework based on internal group feedback

- use data_filter instead of regex_filter on BaseFilter
- have these filters return a dict that is then updated onto CallbackContext instead of using a list is before
- Add a .match property on CallbackContext that returns .matches[0] or None

* Fix and add test for callbackcontext.match

* Lots of documentation fixes and improvements [ci skip]
2019-02-13 12:07:25 +01:00

132 lines
6.6 KiB
Python

#!/usr/bin/env python
#
# A library that provides a Python interface to the Telegram Bot API
# Copyright (C) 2015-2018
# 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 telegram.utils.deprecate import TelegramDeprecationWarning
from telegram.ext import MessageHandler, Filters
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.
Note:
This handler is being deprecated. For the same usecase use:
``MessageHandler(Filters.regex(r'pattern'), callback)``
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 ``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 ``False``
pass_update_queue (:obj:`bool`, optional): If set to ``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 ``False``.
pass_job_queue (:obj:`bool`, optional): If set to ``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 ``False``.
pass_user_data (:obj:`bool`, optional): If set to ``True``, a keyword argument called
``user_data`` will be passed to the callback function. Default is ``False``.
pass_chat_data (:obj:`bool`, optional): If set to ``True``, a keyword argument called
``chat_data`` will be passed to the callback function. Default is ``False``.
message_updates (:obj:`bool`, optional): Should "normal" message updates be handled?
Default is ``True``.
channel_post_updates (:obj:`bool`, optional): Should channel posts updates be handled?
Default is ``True``.
edited_updates (:obj:`bool`, optional): Should "edited" message updates be handled? Default
is ``False``.
Raises:
ValueError
"""
def __init__(self,
pattern,
callback,
pass_groups=False,
pass_groupdict=False,
pass_update_queue=False,
pass_job_queue=False,
pass_user_data=False,
pass_chat_data=False,
allow_edited=False,
message_updates=True,
channel_post_updates=False,
edited_updates=False):
warnings.warn('RegexHandler is deprecated. See https://git.io/fxJuV for more info',
TelegramDeprecationWarning,
stacklevel=2)
super(RegexHandler, self).__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)
self.pass_groups = pass_groups
self.pass_groupdict = pass_groupdict
def collect_optional_args(self, dispatcher, update=None, check_result=None):
optional_args = super(RegexHandler, self).collect_optional_args(dispatcher, update,
check_result)
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