Linux.do OAuth

Linux.do OAuth Script
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// ==UserScript==
// @name         Linux.do OAuth
// @namespace    https://linux.do/
// @description  Linux.do OAuth Script
// @author       RyanCross6673
// @version      1.3
// @run-at       document-end
// @match        https://connect.linux.do/oauth2/authorize*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=linux.do
// @license      MIT
// ==/UserScript==

(function () {
    "use strict";

    const allowKeywords = ["允许", "authorize", "approve", "同意", "授权", "确认", "登录", "login", "登入"];
    const denyKeywords = ["cancel", "取消", "拒绝", "deny", "reject", "不同意", "decline"];

    function isAllowButton(el) {
        const text = (el.textContent || el.value || "").toLowerCase().trim();
        return allowKeywords.some((k) => text.includes(k)) &&
               !denyKeywords.some((k) => text.includes(k));
    }

    function clickAllow() {
        const elements = document.querySelectorAll(
            'button, input[type="submit"], input[type="button"], a.btn, [class*="btn"], [class*="button"]'
        );

        for (const el of elements) {
            if (isAllowButton(el)) {
                el.click();
                return true;
            }
        }
        return false;
    }

    if (!clickAllow()) {
        const observer = new MutationObserver(() => {
            if (clickAllow()) observer.disconnect();
        });

        observer.observe(document.body, { childList: true, subtree: true });
        setTimeout(() => observer.disconnect(), 10000);
    }
})();