views.py 文件源码

def task_file(request, contest_id, file_id):
    contest = get_object_or_404(models.TaskBasedContest, pk=contest_id)
    if not contest.is_visible_in_list and not request.user.is_staff:
        return HttpResponseNotFound()

    file = get_object_or_404(tasks_models.TaskFile, pk=file_id)
    if not contest.has_task(file.task):
        return HttpResponseNotFound()

    if not contest.is_started() and not request.user.is_staff:
        return HttpResponseForbidden('Contest is not started')

    participant = contest.get_participant_for_user(request.user)
    if not is_task_open(contest, file.task, participant) and not request.user.is_staff:
        return HttpResponseForbidden('Task is closed')

    if file.participant is not None and file.participant.id != request.user.id:
        return HttpResponseForbidden()

    file_path = file.get_path_abspath()
    return respond_as_attachment(request, file_path, file.name, file.content_type)