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part.py
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/
part.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Hive Appier Framework
# Copyright (c) 2008-2024 Hive Solutions Lda.
#
# This file is part of Hive Appier Framework.
#
# Hive Appier Framework is free software: you can redistribute it and/or modify
# it under the terms of the Apache License as published by the Apache
# Foundation, either version 2.0 of the License, or (at your option) any
# later version.
#
# Hive Appier Framework 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
# Apache License for more details.
#
# You should have received a copy of the Apache License along with
# Hive Appier Framework. If not, see <http://www.apache.org/licenses/>.
__author__ = "João Magalhães <joamag@hive.pt>"
""" The author(s) of the module """
__copyright__ = "Copyright (c) 2008-2024 Hive Solutions Lda."
""" The copyright for the module """
__license__ = "Apache License, Version 2.0"
""" The license for the module """
import appier
from appier_extras import base
class PreflightPart(appier.Part):
def __init__(self, *args, **kwargs):
appier.Part.__init__(self, *args, **kwargs)
self.data = appier.conf("PREFLIGHT_DATA", "")
self.max_age = appier.conf("PREFLIGHT_MAX_AGE", 86400, cast=int)
self.data_b = appier.legacy.bytes(self.data, force=True)
self.max_age_s = str(self.max_age)
def version(self):
return base.VERSION
def load(self):
appier.Part.load(self)
self.owner.bind("before_request", self._handler)
def unload(self):
appier.Part.unload(self)
self.owner.bind("before_request", self._handler)
def _handler(self):
if not self.owner.request.method == "OPTIONS":
return
if self.owner.request.handled:
return
allow_headers = self.request.get_header("Access-Control-Request-Headers", None)
if allow_headers:
self.request.set_header("Access-Control-Allow-Headers", allow_headers)
self.request.set_header("Access-Control-Max-Age", self.max_age_s)
self.owner.request.handle(self.data_b)