Warning: This document is for the development version of molten.

Source code for molten.helpers

# This file is a part of molten.
# Copyright (C) 2018 CLEARTYPE SRL <bogdan@cleartype.io>
# molten is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
# molten is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# License for more details.
# You should have received a copy of the GNU Lesser General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from enum import Enum, auto

from .http import HTTP_301, HTTP_302, HTTP_307, HTTP_308, Response

[docs]class RedirectType(Enum): TEMPORARY = auto() PERMANENT = auto()
#: A mapping from redirect types to HTTP/1.0 status codes. LEGACY_REDIRECT_CODES = { RedirectType.TEMPORARY: HTTP_302, RedirectType.PERMANENT: HTTP_301, } #: A mapping from redirect types to HTTP/1.1 status codes. The #: advantage of these codes is the request method is preserved during #: the redirect. MODERN_REDIRECT_CODES = { RedirectType.TEMPORARY: HTTP_307, RedirectType.PERMANENT: HTTP_308, }
[docs]def redirect( target_location: str, *, redirect_type: RedirectType = RedirectType.TEMPORARY, use_modern_codes: bool = True, ) -> Response: """Construct an HTTP Response to redirect the client elsewhere. Parameters: target_location: Where the client should be redirected to. redirect_type: PERMANENT or TEMPORARY. use_modern_codes: Whether or not to use HTTP/1.1 response codes. The advantage to using HTTP/1.1 codes is the request method is preserved during redirect, but older clients (IE11 and older) might not support them. """ if use_modern_codes: status_code = MODERN_REDIRECT_CODES[redirect_type] else: status_code = LEGACY_REDIRECT_CODES[redirect_type] return Response(status_code, headers={ "Location": target_location })