mirror of
https://github.com/python-telegram-bot/python-telegram-bot.git
synced 2024-11-22 23:27:49 +01:00
3318239cf6
- Improved usage of fixtures
- Replaced fixtures for directly callable factories where
multiple mock objects were needed in the same test function
- Extracted fixtures where possible (in place of literals or
global constants)
- Moved some fixtures to ``conftest.py`` to be used by other
modules
- Made a common base class for both ``TestCommandHandler`` and
``TestPrefixHandler``, extracting common methods, patterns and
signatures
- The extracted patterns in test methods have been named with
leading ``_test``
- Extracted other repeatedly used test utilities into functions
(e.g. ``is_match``) and methods (e.g. ``make_default_handler``)
161 lines
7.6 KiB
Python
161 lines
7.6 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/].
|
|
"""This module contains the base class for handlers as used by the Dispatcher."""
|
|
|
|
|
|
class Handler(object):
|
|
"""The base class for all update handlers. Create custom handlers by inheriting from it.
|
|
|
|
Attributes:
|
|
callback (:obj:`callable`): The callback function for this handler.
|
|
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:
|
|
:attr:`pass_user_data` and :attr:`pass_chat_data` determine whether a ``dict`` you
|
|
can use to keep any data in will be sent to the :attr:`callback` function. Related to
|
|
either the user or the chat that the update was sent in. For each update from the same user
|
|
or in the same chat, it will be the same ``dict``.
|
|
|
|
Note that this is DEPRECATED, and you should use context based callbacks. See
|
|
https://git.io/fxJuV for more info.
|
|
|
|
Args:
|
|
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_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``.
|
|
DEPRECATED: Please switch to context based callbacks.
|
|
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``.
|
|
DEPRECATED: Please switch to context based callbacks.
|
|
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``.
|
|
DEPRECATED: Please switch to context based callbacks.
|
|
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``.
|
|
DEPRECATED: Please switch to context based callbacks.
|
|
|
|
"""
|
|
|
|
def __init__(self,
|
|
callback,
|
|
pass_update_queue=False,
|
|
pass_job_queue=False,
|
|
pass_user_data=False,
|
|
pass_chat_data=False):
|
|
self.callback = callback
|
|
self.pass_update_queue = pass_update_queue
|
|
self.pass_job_queue = pass_job_queue
|
|
self.pass_user_data = pass_user_data
|
|
self.pass_chat_data = pass_chat_data
|
|
|
|
def check_update(self, update):
|
|
"""
|
|
This method is called to determine if an update should be handled by
|
|
this handler instance. It should always be overridden.
|
|
|
|
Args:
|
|
update (:obj:`str` | :class:`telegram.Update`): The update to be tested.
|
|
|
|
Returns:
|
|
Either ``None`` or ``False`` if the update should not be handled. Otherwise an object
|
|
that will be passed to :attr:`handle_update` and :attr:`collect_additional_context`
|
|
when the update gets handled.
|
|
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
def handle_update(self, update, dispatcher, check_result, context=None):
|
|
"""
|
|
This method is called if it was determined that an update should indeed
|
|
be handled by this instance. Calls :attr:`self.callback` along with its respectful
|
|
arguments. To work with the :class:`telegram.ext.ConversationHandler`, this method
|
|
returns the value returned from ``self.callback``.
|
|
Note that it can be overridden if needed by the subclassing handler.
|
|
|
|
Args:
|
|
update (:obj:`str` | :class:`telegram.Update`): The update to be handled.
|
|
dispatcher (:class:`telegram.ext.Dispatcher`): The calling dispatcher.
|
|
check_result: The result from :attr:`check_update`.
|
|
|
|
"""
|
|
if context:
|
|
self.collect_additional_context(context, update, dispatcher, check_result)
|
|
return self.callback(update, context)
|
|
else:
|
|
optional_args = self.collect_optional_args(dispatcher, update, check_result)
|
|
return self.callback(dispatcher.bot, update, **optional_args)
|
|
|
|
def collect_additional_context(self, context, update, dispatcher, check_result):
|
|
"""Prepares additional arguments for the context. Override if needed.
|
|
|
|
Args:
|
|
context (:class:`telegram.ext.CallbackContext`): The context object.
|
|
update (:class:`telegram.Update`): The update to gather chat/user id from.
|
|
dispatcher (:class:`telegram.ext.Dispatcher`): The calling dispatcher.
|
|
check_result: The result (return value) from :attr:`check_update`.
|
|
|
|
"""
|
|
pass
|
|
|
|
def collect_optional_args(self, dispatcher, update=None, check_result=None):
|
|
"""
|
|
Prepares the optional arguments. If the handler has additional optional args,
|
|
it should subclass this method, but remember to call this super method.
|
|
|
|
DEPRECATED: This method is being replaced by new context based callbacks. Please see
|
|
https://git.io/fxJuV for more info.
|
|
|
|
Args:
|
|
dispatcher (:class:`telegram.ext.Dispatcher`): The dispatcher.
|
|
update (:class:`telegram.Update`): The update to gather chat/user id from.
|
|
check_result: The result from check_update
|
|
|
|
"""
|
|
optional_args = dict()
|
|
|
|
if self.pass_update_queue:
|
|
optional_args['update_queue'] = dispatcher.update_queue
|
|
if self.pass_job_queue:
|
|
optional_args['job_queue'] = dispatcher.job_queue
|
|
if self.pass_user_data:
|
|
user = update.effective_user
|
|
optional_args['user_data'] = dispatcher.user_data[user.id if user else None]
|
|
if self.pass_chat_data:
|
|
chat = update.effective_chat
|
|
optional_args['chat_data'] = dispatcher.chat_data[chat.id if chat else None]
|
|
|
|
return optional_args
|