Jonas Havelka
5 months ago
2 changed files with 0 additions and 57 deletions
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from datetime import datetime, date |
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from django.conf import settings |
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from django.http import HttpResponse, HttpResponseRedirect |
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class LoggedInHintCookieMiddleware(object): |
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"""Middleware to securely help with 'logged-in' detection for dual HTTP/HTTPS sites. |
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On insecure requests: Checks for a (non-secure) cookie settings.LOGGED_IN_HINT_COOKIE_NAME |
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and if present, redirects to HTTPS (same adress). |
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Note this usually breaks non-GET (POST) requests. |
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On secure requests: Updates cookie settings.LOGGED_IN_HINT_COOKIE_NAME to reflect |
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whether an user is logged in in the current session (cookie set to 'True' or cleared). |
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The cookie is set to expire at the same time as the sessionid cookie. |
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By default, LOGGED_IN_HINT_COOKIE_NAME = 'logged_in_hint'. |
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""" |
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def __init__(self): |
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if hasattr(settings, 'LOGGED_IN_HINT_COOKIE_NAME'): |
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self.cookie_name = settings.LOGGED_IN_HINT_COOKIE_NAME |
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else: self.cookie_name = 'logged_in_hint' |
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self.cookie_value = 'True' |
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def cookie_correct(self, request): |
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return self.cookie_name in request.COOKIES and request.COOKIES[self.cookie_name] == self.cookie_value |
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def process_request(self, request): |
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if not request.is_secure(): |
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if self.cookie_correct(request): |
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# redirect insecure (assuming http) requests with hint cookie to https |
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url = request.build_absolute_uri() |
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assert url[:5] == 'http:' |
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return HttpResponseRedirect('https:' + url[5:]) |
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return None |
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def process_response(self, request, response): |
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if request.is_secure(): |
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# assuming full session info (as the conn. is secure) |
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try: |
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user = request.user |
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except AttributeError: # no user - ajax or other special request |
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return response |
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if user.is_authenticated(): |
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if not self.cookie_correct(request): |
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expiry = None if request.session.get_expire_at_browser_close() else request.session.get_expiry_date() |
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response.set_cookie(self.cookie_name, value=self.cookie_value, expires=expiry, secure=False) |
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else: |
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if self.cookie_name in request.COOKIES: |
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response.delete_cookie(self.cookie_name) |
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return response |
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