CheckDomainMiddleware

CheckDomainMiddleware.py

class CheckDomainMiddleware(object):
    """
    If MULTISITE_WRONG_DOMAIN_REDIRECT_URL defined all wrong domain requests
    will be redirected to this url. Otherwise Http 404 will be returned.

    How-to use:
        # 1. add to MIDDLEWARE_CLASSES
        # 2. File: settings.py
        MULTISITE_WRONG_DOMAIN_REDIRECT_URL = "http://example.com/"
    """

    def process_request(self, request):
        request_host = request.get_host()  # with port: 127.0.0.1:8000
        site_id, site_domain = get_thread_local_site_id_domain()  # noqa: unused variable
        if request_host != site_domain:
            if settings.DEBUG and request_host.startswith('127.0.0.1'):
                log.warning('CheckDomainMiddleware skip wrong host: real {}, '
                            'expect {}'.format(request_host, site_domain))
                return
            url = getattr(settings, 'MULTISITE_WRONG_DOMAIN_REDIRECT_URL', '')
            if not url:
                raise Http404('No redirects for this domain. '
                              'CheckDomainMiddleware raise Http404 for this '
                              'request')
            return HttpResponseRedirect(url)