root / api / middleware.py @ 5509b599
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from django.conf import settings |
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from django.http import HttpResponse, HttpResponseRedirect |
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from synnefo.db.models import SynnefoUser |
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from synnefo.aai.shibboleth import Tokens, register_shibboleth_user |
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import time |
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import datetime |
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class ApiAuthMiddleware(object): |
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auth_token = "X-Auth-Token"
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auth_user = "X-Auth-User"
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auth_key = "X-Auth-Key"
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def process_request(self, request): |
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if not request.path.startswith('/api/') : |
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return
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token = None
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#Try to find token in a cookie
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try:
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token = request.COOKIES['X-Auth-Token']
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except Exception: |
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pass
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#Try to find token in request header
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if not token: |
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token = request.META.get('HTTP_X_AUTH_TOKEN', None) |
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if token:
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user = None
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#Retrieve user from DB or other caching mechanism
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try:
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user = SynnefoUser.objects.get(auth_token=token) |
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except SynnefoUser.DoesNotExist:
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user = None
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#Check user's auth token
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if (time.time() -
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time.mktime(user.auth_token_created.timetuple()) - |
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settings.AUTH_TOKEN_DURATION * 3600) > 0: |
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#The user's token has expired, re-login
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user = None
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request.user = user |
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return
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#A Rackspace API authentication request
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if self.auth_user in request.META and self.auth_key in request.META and 'GET' == request.method: |
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# This is here merely for compatibility with the Openstack API.
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# All normal users should authenticate through Sibbolleth. Admin
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# users or other selected users could use this as a bypass
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# mechanism
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user = SynnefoUser.objects\ |
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.filter(name = request.META[self.auth_user]) \
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.filter(uniq = request.META[self.auth_key])
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response = HttpResponse() |
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if user.count() <= 0: |
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response.status_code = 401
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else:
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response.status_code = 204
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response['X-Auth-Token'] = user[0].auth_token |
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#TODO: set the following fields when we do have this info
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response['X-Server-Management-Url'] = "" |
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response['X-Storage-Url'] = "" |
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response['X-CDN-Management-Url'] = "" |
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return response
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request.user = None
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def process_response(self, request, response): |
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#Tell proxies and other interested parties that the
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#request varies based on the auth token, to avoid
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#caching of results
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response['Vary'] = self.auth_token |
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return response
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