Export Cookies

Export cookies to various formats in one click!
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// ==UserScript==
// @name         Export Cookies
// @name:zh-CN   导出 Cookies
// @namespace    http://tampermonkey.net/
// @version      0.1.0
// @description  Export cookies to various formats in one click!
// @description:zh-CN 一键导出多种格式的 Cookies！
// @author       PRO-2684
// @match        *://*/*
// @run-at       context-menu
// @license      gpl-3.0
// @grant        GM_registerMenuCommand
// @grant        GM.cookie
// @grant        GM.download
// ==/UserScript==

(function () {
    "use strict";
    const log = () => { };
    // const log = console.log.bind(console, `[${GM.info.script.name}]`);
    // Adapted from https://github.com/kairi003/Get-cookies.txt-LOCALLY/blob/master/src/modules/cookie_format.mjs
    function jsonToNetscapeMapper(cookies) {
        return cookies.map(({ domain, expirationDate, path, secure, name, value }) => {
            const includeSubDomain = !!domain?.startsWith('.');
            const expiry = expirationDate?.toFixed() ?? '0';
            const arr = [domain, includeSubDomain, path, secure, expiry, name, value];
            return arr.map((v) => (typeof v === 'boolean' ? v.toString().toUpperCase() : v));
        });
    };
    const formats = {
        netscape: {
            ext: '.txt',
            mimeType: 'text/plain',
            serializer: (cookies) => {
                const netscapeTable = jsonToNetscapeMapper(cookies);
                const text = [
                    '# Netscape HTTP Cookie File',
                    '# http://curl.haxx.se/rfc/cookie_spec.html',
                    '# This file was generated by Export Cookies! Edit at your own risk.',
                    '',
                    ...netscapeTable.map((row) => row.join('\t')),
                    '' // Add a new line at the end
                ].join('\n');
                return text;
            }
        },
        json: {
            ext: '.json',
            mimeType: 'application/json',
            serializer: JSON.stringify
        }
    };
    async function blobCookies(format) {
        const { mimeType, serializer } = formats[format];
        const cookies = await GM.cookie.list({});
        log("Extracted cookies:", cookies);
        const text = serializer(cookies);
        log("Serialized cookies:", text);
        const blob = new Blob([text], { type: mimeType });
        return URL.createObjectURL(blob);
    }
    const result = confirm('Please select the format you want to export the cookies in.\n\nPress OK to export in Netscape format (.txt), or press Cancel to export in JSON format (.json).');
    const format = result ? 'netscape' : 'json';
    blobCookies(format).then((blob) => {
        GM.download(blob, `cookies${formats[format].ext}`).then(() => {
            URL.revokeObjectURL(blob);
            console.log(`Cookies exported in ${format.toUpperCase()} format.`);
        }).catch((err) => {
            console.error('Failed to download the cookies.', err);
        });
    });
})();