from django.core.exceptions import (
    DisallowedHost, PermissionDenied, SuspiciousOperation,
)
from django.http import (
    Http404, HttpResponse, HttpResponseRedirect, HttpResponseServerError,
)
from django.http.multipartparser import MultiPartParserError


def innocent(request):
    return HttpResponse('innocent')


def redirect(request):
    return HttpResponseRedirect('/')


def suspicious(request):
    raise SuspiciousOperation('dubious')


def suspicious_spec(request):
    raise DisallowedHost('dubious')


class UncaughtException(Exception):
    pass


def uncaught_exception(request):
    raise UncaughtException('Uncaught exception')


def internal_server_error(request):
    status = request.GET.get('status', 500)
    return HttpResponseServerError('Server Error', status=int(status))


def permission_denied(request):
    raise PermissionDenied()


def multi_part_parser_error(request):
    raise MultiPartParserError('parsing error')


def does_not_exist_raised(request):
    raise Http404('Not Found')