views.py 文件源码

def download_metadata(request, username, id_string, data_id):
    xform = get_object_or_404(XForm,
                              user__username__iexact=username,
                              id_string__exact=id_string)
    owner = xform.user
    if username == request.user.username or xform.shared:
        data = get_object_or_404(MetaData, pk=data_id)
        file_path = data.data_file.name
        filename, extension = os.path.splitext(file_path.split('/')[-1])
        extension = extension.strip('.')
        dfs = get_storage_class()()
        if dfs.exists(file_path):
            audit = {
                'xform': xform.id_string
            }
            audit_log(
                Actions.FORM_UPDATED, request.user, owner,
                _("Document '%(filename)s' for '%(id_string)s' downloaded.") %
                {
                    'id_string': xform.id_string,
                    'filename': "%s.%s" % (filename, extension)
                }, audit, request)
            response = response_with_mimetype_and_name(
                data.data_file_type,
                filename, extension=extension, show_date=False,
                file_path=file_path)
            return response
        else:
            return HttpResponseNotFound()

    return HttpResponseForbidden(_(u'Permission denied.'))