mirror of
https://github.com/python-telegram-bot/python-telegram-bot.git
synced 2024-11-26 09:07:43 +01:00
107 lines
4.9 KiB
Python
107 lines
4.9 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 StringCommandHandler class."""
|
|
|
|
from future.utils import string_types
|
|
|
|
from .handler import Handler
|
|
|
|
|
|
class StringCommandHandler(Handler):
|
|
"""Handler class to handle string commands. Commands are string updates that start with ``/``.
|
|
|
|
Note:
|
|
This handler is not used to handle Telegram :attr:`telegram.Update`, but strings manually
|
|
put in the queue. For example to send messages with the bot using command line or API.
|
|
|
|
Attributes:
|
|
command (:obj:`str`): The command this handler should listen for.
|
|
callback (:obj:`callable`): The callback function for this handler.
|
|
pass_args (:obj:`bool`): Determines whether the handler should be passed
|
|
``args``.
|
|
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.
|
|
|
|
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_args (:obj:`bool`, optional): Determines whether the handler should be passed the
|
|
arguments passed to the command as a keyword argument called ``args``. It will contain
|
|
a list of strings, which is the text following the command split on single or
|
|
consecutive whitespace characters. Default is ``False``
|
|
DEPRECATED: Please switch to context based callbacks.
|
|
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.
|
|
|
|
"""
|
|
|
|
def __init__(self,
|
|
command,
|
|
callback,
|
|
pass_args=False,
|
|
pass_update_queue=False,
|
|
pass_job_queue=False):
|
|
super(StringCommandHandler, self).__init__(
|
|
callback,
|
|
pass_update_queue=pass_update_queue,
|
|
pass_job_queue=pass_job_queue)
|
|
self.command = command
|
|
self.pass_args = pass_args
|
|
|
|
def check_update(self, update):
|
|
"""Determines whether an update should be passed to this handlers :attr:`callback`.
|
|
|
|
Args:
|
|
update (:obj:`str`): An incoming command.
|
|
|
|
Returns:
|
|
:obj:`bool`
|
|
|
|
"""
|
|
if isinstance(update, string_types) and update.startswith('/'):
|
|
args = update[1:].split(' ')
|
|
if args[0] == self.command:
|
|
return args[1:]
|
|
|
|
def collect_optional_args(self, dispatcher, update=None, check_result=None):
|
|
optional_args = super(StringCommandHandler, self).collect_optional_args(dispatcher,
|
|
update,
|
|
check_result)
|
|
if self.pass_args:
|
|
optional_args['args'] = check_result
|
|
return optional_args
|
|
|
|
def collect_additional_context(self, context, update, dispatcher, check_result):
|
|
context.args = check_result
|