Created
June 5, 2010 17:47
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Middlware to allow's your django server to respond appropriately to cross domain XHR (postMessage html5 API).
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import re | |
from django.utils.text import compress_string | |
from django.utils.cache import patch_vary_headers | |
from django import http | |
try: | |
import settings | |
XS_SHARING_ALLOWED_ORIGINS = settings.XS_SHARING_ALLOWED_ORIGINS | |
XS_SHARING_ALLOWED_METHODS = settings.XS_SHARING_ALLOWED_METHODS | |
except: | |
XS_SHARING_ALLOWED_ORIGINS = '*' | |
XS_SHARING_ALLOWED_METHODS = ['POST','GET','OPTIONS', 'PUT', 'DELETE'] | |
class XsSharing(object): | |
""" | |
This middleware allows cross-domain XHR using the html5 postMessage API. | |
Access-Control-Allow-Origin: http://foo.example | |
Access-Control-Allow-Methods: POST, GET, OPTIONS, PUT, DELETE | |
""" | |
def process_request(self, request): | |
if 'HTTP_ACCESS_CONTROL_REQUEST_METHOD' in request.META: | |
response = http.HttpResponse() | |
response['Access-Control-Allow-Origin'] = XS_SHARING_ALLOWED_ORIGINS | |
response['Access-Control-Allow-Methods'] = ",".join( XS_SHARING_ALLOWED_METHODS ) | |
return response | |
return None | |
def process_response(self, request, response): | |
# Avoid unnecessary work | |
if response.has_header('Access-Control-Allow-Origin'): | |
return response | |
response['Access-Control-Allow-Origin'] = XS_SHARING_ALLOWED_ORIGINS | |
response['Access-Control-Allow-Methods'] = ",".join( XS_SHARING_ALLOWED_METHODS ) | |
return response |
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Wonderful, thank you.