# -*- coding: utf-8 -*-
# This file is part of Shuup.
#
# Copyright (c) 2012-2017, Shoop Commerce Ltd. All rights reserved.
#
# This source code is licensed under the OSL-3.0 license found in the
# LICENSE file in the root directory of this source tree.
from __future__ import unicode_literals
from django.core.exceptions import ValidationError
from django.http.response import JsonResponse
from django.shortcuts import render
from django.utils.encoding import force_text
from django.utils.translation import ugettext_lazy as _
from shuup.utils.excs import ExceptionalResponse, Problem
[docs]class ExceptionMiddleware(object):
[docs] def process_exception(self, request, exception):
if isinstance(exception, ExceptionalResponse):
return exception.response
if isinstance(exception, (ValidationError, Problem)):
if request.is_ajax():
return JsonResponse({
"error": force_text(exception),
"code": getattr(exception, "code", None)
})
return render(request, self._get_problem_templates(request), {
"title": getattr(exception, "title", None) or _("Error"),
"message": exception.message,
"exception": exception,
})
def _get_problem_templates(self, request):
templates = []
try:
app_name = force_text(request.resolver_match.app_name)
namespace = force_text(request.resolver_match.namespace)
templates.extend([
"%s/problem.jinja" % app_name,
"%s/problem.jinja" % app_name.replace("_", "/"),
"%s/problem.jinja" % namespace,
"%s/problem.jinja" % namespace.replace("_", "/"),
])
except (AttributeError, NameError): # No resolver match? :(
pass
templates.extend([
"shuup/front/problem.jinja",
"problem.jinja",
"problem.html",
])
return templates