Files
pretix_cgo/src/pretix/base/views/errors.py
2021-03-16 19:13:02 +01:00

76 lines
2.9 KiB
Python

from django.http import (
HttpResponseForbidden, HttpResponseNotFound, HttpResponseServerError,
)
from django.middleware.csrf import REASON_NO_CSRF_COOKIE, REASON_NO_REFERER
from django.template import TemplateDoesNotExist, loader
from django.template.loader import get_template
from django.utils.functional import Promise
from django.utils.translation import gettext as _
from django.views.decorators.csrf import requires_csrf_token
from sentry_sdk import last_event_id
def csrf_failure(request, reason=""):
t = get_template('csrffail.html')
c = {
'reason': reason,
'no_referer': reason == REASON_NO_REFERER,
'no_referer1': _(
"You are seeing this message because this HTTPS site requires a "
"'Referer header' to be sent by your Web browser, but none was "
"sent. This header is required for security reasons, to ensure "
"that your browser is not being hijacked by third parties."),
'no_referer2': _(
"If you have configured your browser to disable 'Referer' headers, "
"please re-enable them, at least for this site, or for HTTPS "
"connections, or for 'same-origin' requests."),
'no_cookie': reason == REASON_NO_CSRF_COOKIE,
'no_cookie1': _(
"You are seeing this message because this site requires a CSRF "
"cookie when submitting forms. This cookie is required for "
"security reasons, to ensure that your browser is not being "
"hijacked by third parties."),
'no_cookie2': _(
"If you have configured your browser to disable cookies, please "
"re-enable them, at least for this site, or for 'same-origin' "
"requests."),
}
return HttpResponseForbidden(t.render(c), content_type='text/html')
@requires_csrf_token
def page_not_found(request, exception):
exception_repr = exception.__class__.__name__
# Try to get an "interesting" exception message, if any (and not the ugly
# Resolver404 dictionary)
try:
message = exception.args[0]
except (AttributeError, IndexError):
pass
else:
if isinstance(message, (str, Promise)):
exception_repr = str(message)
context = {
'request_path': request.path,
'exception': exception_repr,
}
template = get_template('404.html')
body = template.render(context, request)
r = HttpResponseNotFound(body)
r.xframe_options_exempt = True
return r
@requires_csrf_token
def server_error(request):
try:
template = loader.get_template('500.html')
except TemplateDoesNotExist:
return HttpResponseServerError('<h1>Server Error (500)</h1>', content_type='text/html')
r = HttpResponseServerError(template.render({
'request': request,
'sentry_event_id': last_event_id(),
}))
r.xframe_options_exempt = True
return r