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Activation and Login Code Library

A library for generating, storing, and exposing activation and login codes for other scripts.

Tento skript by neměl být instalován přímo. Jedná se o knihovnu, kterou by měly jiné skripty využívat pomocí meta příkazu // @require https://update.greasyfork.org/scripts/522177/1511398/Activation%20and%20Login%20Code%20Library.js 

// ==UserScript==
// @name         Activation & Login Code Library
// @namespace    https://example.com/
// @version      1.1
// @description  A reusable library for injecting and storing activation and login codes.
// @author       xiangye
// @license      Apache 2.0
// @grant        none
// ==/UserScript==

(function () {
    'use strict';

    const StorageKeys = {
        ACTIVATION_CODE: 'activation_code',
        LOGIN_CODE: 'login_code',
        EXPIRY_TIME: 'activation_expiry'
    };

    // Helper: Generate a secure activation code
    function generateActivationCode() {
        const timestamp = Date.now().toString(36); // Base36 timestamp for compactness
        const randomPart = Array.from({ length: 8 }, () =>
            Math.random().toString(36).charAt(2).toUpperCase()
        ).join('');
        return `KEY-${timestamp}-${randomPart}`;
    }

    // Helper: Store data with an optional expiry time
    function storeData(key, value, durationInMs = null) {
        const data = { value };
        if (durationInMs) {
            data.expiry = Date.now() + durationInMs;
        }
        try {
            localStorage.setItem(key, JSON.stringify(data));
        } catch (e) {
            console.error(`Failed to store data for key: ${key}`, e);
        }
    }

    // Helper: Retrieve data and check expiry
    function retrieveData(key) {
        const rawData = localStorage.getItem(key);
        if (!rawData) return null;

        try {
            const data = JSON.parse(rawData);
            if (data.expiry && Date.now() > data.expiry) {
                localStorage.removeItem(key);
                return null;
            }
            return data.value;
        } catch (e) {
            console.error(`Failed to parse stored data for key: ${key}`, e);
            return null;
        }
    }

    // Inject and store activation code with selectable duration
    function injectActivationCode(durationOption) {
        const durations = {
            "1week": 7 * 24 * 60 * 60 * 1000,
            "1month": 30 * 24 * 60 * 60 * 1000,
            "3months": 90 * 24 * 60 * 60 * 1000,
            "6months": 180 * 24 * 60 * 60 * 1000,
            "1year": 365 * 24 * 60 * 60 * 1000,
            "forever": null
        };

        const durationInMs = durations[durationOption];
        if (durationInMs === undefined) {
            throw new Error("Invalid duration option");
        }

        const activationCode = generateActivationCode();
        storeData(StorageKeys.ACTIVATION_CODE, activationCode, durationInMs);

        return activationCode;
    }

    // Inject and store a custom login code
    function injectLoginCode(loginCode) {
        if (!loginCode || typeof loginCode !== 'string') {
            throw new Error("Invalid login code");
        }
        storeData(StorageKeys.LOGIN_CODE, loginCode);
    }

    // Public API for external use
    window.ActivationLibrary = {
        injectActivationCode,
        injectLoginCode,
        getActivationCode: () => retrieveData(StorageKeys.ACTIVATION_CODE),
        getLoginCode: () => retrieveData(StorageKeys.LOGIN_CODE)
    };

    console.log("Activation & Login Code Library initialized (v1.1).");
})();