Ejemplo n.º 1
0
    def process_request(self, request):
        """
        Check for denied User-Agents and rewrite the URL based on
        settings.APPEND_SLASH and settings.PREPEND_WWW
        """

        # Check for denied User-Agents
        if 'HTTP_USER_AGENT' in request.META:
            for user_agent_regex in settings.DISALLOWED_USER_AGENTS:
                if user_agent_regex.search(request.META['HTTP_USER_AGENT']):
                    logger.warning('Forbidden (User agent): %s', request.path,
                        extra={
                            'status_code': 403,
                            'request': request
                        }
                    )
                    return http.HttpResponseForbidden('<h1>Forbidden</h1>')

        # Check for a redirect based on settings.APPEND_SLASH
        # and settings.PREPEND_WWW
        host = request.get_host()
        old_url = [host, request.path]
        new_url = old_url[:]

        if (settings.PREPEND_WWW and old_url[0] and
                not old_url[0].startswith('www.')):
            new_url[0] = 'www.' + old_url[0]

        # Append a slash if APPEND_SLASH is set and the URL doesn't have a
        # trailing slash and there is no pattern for the current path
        if settings.APPEND_SLASH and (not old_url[1].endswith('/')):
            urlconf = getattr(request, 'urlconf', None)
            if (not urlresolvers.is_valid_path(request.path_info, urlconf) and
                    urlresolvers.is_valid_path("%s/" % request.path_info, urlconf)):
                new_url[1] = new_url[1] + '/'
                if settings.DEBUG and request.method == 'POST':
                    raise RuntimeError((""
                    "You called this URL via POST, but the URL doesn't end "
                    "in a slash and you have APPEND_SLASH set. Django can't "
                    "redirect to the slash URL while maintaining POST data. "
                    "Change your form to point to %s%s (note the trailing "
                    "slash), or set APPEND_SLASH=False in your Django "
                    "settings.") % (new_url[0], new_url[1]))

        if new_url == old_url:
            # No redirects required.
            return
        if new_url[0]:
            newurl = "%s://%s%s" % (
                request.is_secure() and 'https' or 'http',
                new_url[0], urlquote(new_url[1]))
        else:
            newurl = urlquote(new_url[1])
        if request.META.get('QUERY_STRING', ''):
            newurl += '?' + request.META['QUERY_STRING']
        return http.HttpResponsePermanentRedirect(newurl)
Ejemplo n.º 2
0
    def process_response(self, request, response):
        language = translation.get_language()
        if (response.status_code == 404 and
                not translation.get_language_from_path(request.path_info)
                    and self.is_language_prefix_patterns_used()):
            urlconf = getattr(request, 'urlconf', None)
            language_path = '/%s%s' % (language, request.path_info)
            if settings.APPEND_SLASH and not language_path.endswith('/'):
                language_path = language_path + '/'

            if is_valid_path(language_path, urlconf):
                language_url = "%s://%s/%s%s" % (
                    request.is_secure() and 'https' or 'http',
                    request.get_host(), language, request.get_full_path())
                return HttpResponseRedirect(language_url)
        translation.deactivate()

        patch_vary_headers(response, ('Accept-Language',))
        if 'Content-Language' not in response:
            response['Content-Language'] = language
        return response