Construct 3 解除客户端限制

模拟个人专业版许可证，以解除客户端里无需后端支持的部分功能限制，比如事件数、效果数、层数、字体数
当前为 2025-09-29 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         Construct 3 解除客户端限制
// @namespace    star2000
// @version      1.1
// @description  模拟个人专业版许可证，以解除客户端里无需后端支持的部分功能限制，比如事件数、效果数、层数、字体数
// @author       star2000
// @match        https://account.construct.net/*
// @run-at       document-start
// @icon         https://editor.construct.net/media/icon-512.png
// @grant        none
// @license      AGPL-3.0-or-later
// ==/UserScript==

const sN = window.t,
  ya = "00";
function uN(t) {
  return t.map((t) => String.fromCharCode(t)).join("");
}
function K9(t) {
  return "string" == typeof t;
}
function zt(t) {
  if (!K9(t)) throw new TypeError("expected string");
}
function vei(t) {
  return zt(t), new TextEncoder("utf-8").encode(t).buffer;
}
Crypto = {};
Crypto.Kni = function (t) {
  let i = "";
  const e = new DataView(t);
  for (let t = 0; t < e.byteLength; ++t) {
    const s = e.getUint8(t).toString(16);
    i += (ya + s).slice(-ya.length);
  }
  return i;
};
Crypto.qni = function (t) {
  return "string" == typeof t && (t = vei(t)), Crypto.Xni(t);
};
Crypto.Xni = function (t) {
  return window.isSecureContext
    ? crypto.subtle.digest("SHA-256", t).then(Crypto.Kni)
    : Promise.reject(new Error("web crypto only available on secure origins"));
};

async function upgradeLicense(license) {
  license.type = "personal";
  delete license.maxEvents;
  delete license.maxLayers;
  delete license.maxEffects;
  delete license.maxWebFonts;
  license.scriptingEnabled = true;
  license.reason = "";
  license.canUseBuildService = true;
  license.canUseRemovePreview = true;
  license.canExport = true;

  const e = license.verificationDate.toUpperCase().trim(),
    s = license.type.toUpperCase().trim(),
    n = Date.parse(e),
    r = Date.now(),
    h = Math.floor(3024e5);
  if (n < r - h || n > r + h) return !1;
  let o = uN([
      97, 118, 88, 84, 82, 51, 66, 77, 55, 75, 112, 117, 88, 66, 51, 115,
    ]),
    a = uN([
      99, 74, 70, 74, 101, 72, 119, 68, 89, 72, 108, 55, 108, 112, 77, 103,
    ]);
  s.length > 4 && (o += [...e].reduce((t, i) => t + ("5" === i ? 1 : 0), 0)),
    [...e].reduce((t, i) => t + ("0" === i ? 1 : 0), 0) > 6 &&
      ((a += o.substring(0, 3)), (o = "_" + o));
  let l = 0;
  for (const t of e) {
    const i = Number(t);
    isFinite(i) && (l += i);
  }
  l % 3 == 0 && (a = a.substring(0, 5));
  const u = (o + "A" + e + "A" + s + "Α" + a).normalize(),
    c = await Crypto.qni(u);
  license.verificationHash = c.toLowerCase();
}

(function () {
  "use strict";

  const originalFetch = window.fetch;
  window.fetch = async function (url, options) {
    const response = await originalFetch(url, options);
    if (url !== "token.json") {
      return response;
    }
    const cj = await response.clone().json();
    if (!cj.response.license || !cj.response.user) {
      return response;
    }
    try {
      await upgradeLicense(cj.response.license);
    } catch (e) {
      console.log("解除客户端限制失败", e);
      return response;
    }
    console.log("解除客户端限制成功");
    return new Response(JSON.stringify(cj), {
      status: 200,
      statusText: "OK",
      headers: new Headers({
        "Content-Type": "application/json",
      }),
    });
  };
})();
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