# This file is part of Radicale Server - Calendar Server
# Copyright © 2008 Nicolas Kandel
# Copyright © 2008 Pascal Halter
# Copyright © 2008-2017 Guillaume Ayoub
# Copyright © 2017-2018 Unrud<unrud@outlook.com>
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This library 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Radicale.  If not, see <http://www.gnu.org/licenses/>.

from http import client

from radicale import httputils


class ApplicationOptionsMixin:
    def do_OPTIONS(self, environ, base_prefix, path, user):
        """Manage OPTIONS request."""
        headers = {
            "Allow": ", ".join(
                name[3:] for name in dir(self) if name.startswith("do_")),
            "DAV": httputils.DAV_HEADERS}
        return client.OK, headers, None