如何使用flask和ajax将磁盘上的zip文件发送到客户端？

Question

我看到了这个question，但是由于ZipFile是在另一个脚本中生成的，所以我无法使用该答案。在flask应用程序中，我访问保存在磁盘上的该zip文件。

        if download_local:
            file_name = "adyenfiles.zip"
            file_path = os.path.join(app.config["tmp_path"], file_name).replace('\\', '/')
            logging.info(f"Enviando arquivo: {file_path}")
            logging.info(f"FILE_PATH: {file_path}")
            response = make_response(send_file(file_path, as_attachment=True, mimetype="application/zip"))
            response.headers["Content-Disposition"] = f"attachment;filename={file_name}"
            return response

然后在客户端上：

    $.ajax({
        type: "POST",
        url: url,
        data: $("#manual-download-form").serialize(),
        beforeSend: function () {
            $("#request-download-progress").show();
            displayMessage("Processo de requisição de download iniciado, por favor aguarde.");
        },
        success: function (response, status, xhr) {
            $("#manual-download-form")[0].reset();
            $("input[name='date-group']:checked").val("specific");
            $("#date-input-area").html(
                `
                <div class="input-field col s12">
                    <input id="manual-download-datepicker" name="specific-date" type="text" class="datepicker">
                    <label for="specific-date">Data*</label>
                </div>
                `
            );
            resetDatepicker();
            var filename = "";
            var disposition = xhr.getResponseHeader('Content-Disposition');
            if (disposition && disposition.indexOf('attachment') !== -1) {
                var filenameRegex = /filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/;
                var matches = filenameRegex.exec(disposition);
                if (matches != null && matches[1]) filename = matches[1].replace(/['"]/g, '');
            }

            var type = xhr.getResponseHeader('Content-Type');
            var blob = new Blob([response], { type: "application/zip" });

            if (typeof window.navigator.msSaveBlob !== 'undefined') {
                // IE workaround for "HTML7007: One or more blob URLs were revoked by closing the blob for which they were created. These URLs will no longer resolve as the data backing the URL has been freed."
                window.navigator.msSaveBlob(blob, filename);
            } else {
                var URL = window.URL || window.webkitURL;
                var downloadUrl = URL.createObjectURL(blob);

                if (filename) {
                    // use HTML5 a[download] attribute to specify filename
                    var a = document.createElement("a");
                    // safari doesn't support this yet
                    if (typeof a.download === 'undefined') {
                        window.location = downloadUrl;
                    } else {
                        a.href = downloadUrl;
                        a.download = filename;
                        document.body.appendChild(a);
                        a.click();
                    }
                } else {
                    window.location = downloadUrl;
                }

                setTimeout(function () { URL.revokeObjectURL(downloadUrl); }, 100); // cleanup
            }
        },
        complete: function (response, status, xhr) {
            $("#request-download-progress").hide();
            displayMessage("Se necessário, verifique o diretório para certificar-se de que os arquivos foram baixados.");
        },
        error: function (response) {
            displayMessage(response["responseText"]);
        }
    });

当我尝试打开zip文件时出现此错误（指出无法将其作为zip文件打开）：

如何将保存在磁盘上的zip文件发送给客户端？如何在flask上进行设置并在客户端上生成Blob？