mirror of
https://github.com/alexgo-io/stacks-puppet-node.git
synced 2026-04-21 18:32:04 +08:00
63 lines
2.0 KiB
Python
63 lines
2.0 KiB
Python
# -*- coding: utf-8 -*-
|
|
"""
|
|
Resolver
|
|
~~~~~
|
|
:copyright: (c) 2014-2016 by Halfmoon Labs, Inc.
|
|
:copyright: (c) 2016 blockstack.org
|
|
:license: MIT, see LICENSE for more details.
|
|
"""
|
|
|
|
|
|
# Cross domain request decorator
|
|
|
|
from datetime import timedelta
|
|
from flask import make_response, request, current_app
|
|
from functools import update_wrapper
|
|
|
|
X_HEADERS = [
|
|
'X-Requested-With', 'Accept', 'Content-Type', 'X-HTTP-Method-Override',
|
|
'Origin', 'Pragma', 'Referer', 'User-Agent', 'If-Match', 'If-None-Match'
|
|
]
|
|
|
|
|
|
def crossdomain(origin='*', methods=None, headers=X_HEADERS,
|
|
max_age=21600, attach_to_all=True,
|
|
automatic_options=True):
|
|
if methods is not None:
|
|
methods = ', '.join(sorted(x.upper() for x in methods))
|
|
if headers is not None and not isinstance(headers, basestring):
|
|
headers = ', '.join(x.upper() for x in headers)
|
|
if not isinstance(origin, basestring):
|
|
origin = ', '.join(origin)
|
|
if isinstance(max_age, timedelta):
|
|
max_age = max_age.total_seconds()
|
|
|
|
def get_methods():
|
|
if methods is not None:
|
|
return methods
|
|
|
|
options_resp = current_app.make_default_options_response()
|
|
return options_resp.headers['allow']
|
|
|
|
def decorator(f):
|
|
def wrapped_function(*args, **kwargs):
|
|
if automatic_options and request.method == 'OPTIONS':
|
|
resp = current_app.make_default_options_response()
|
|
else:
|
|
resp = make_response(f(*args, **kwargs))
|
|
if not attach_to_all and request.method != 'OPTIONS':
|
|
return resp
|
|
|
|
h = resp.headers
|
|
|
|
h['Access-Control-Allow-Origin'] = origin
|
|
h['Access-Control-Allow-Methods'] = get_methods()
|
|
h['Access-Control-Max-Age'] = str(max_age)
|
|
if headers is not None:
|
|
h['Access-Control-Allow-Headers'] = headers
|
|
return resp
|
|
|
|
f.provide_automatic_options = False
|
|
return update_wrapper(wrapped_function, f)
|
|
return decorator
|