SimpCity Re-re-direct

Bypass the new external link warning on SimpCity

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name        SimpCity Re-re-direct
// @namespace   https://github.com/chuckmingus
// @version     1.2.0
// @description Bypass the new external link warning on SimpCity
// @author      chuckmingus
// @icon        https://cdn.jsdelivr.net/gh/homarr-labs/dashboard-icons/png/cobalt.png
// @license     MIT
// @match       https://simpcity.cr/*
// @match       https://*.simpcity.cr/*
// @grant       none
// @run-at      document-start
// ==/UserScript==

(function () {
  "use strict";

  function isValidUrl(str) {
    try {
      const parsed = new URL(str);
      return parsed.protocol === "http:" || parsed.protocol === "https:";
    } catch {
      return false;
    }
  }

  function decodeTarget(str) {
    try {
      let normalized = str.replace(/-/g, "+").replace(/_/g, "/");
      while (normalized.length % 4 !== 0) {
        normalized += "=";
      }
      const binary = atob(normalized);
      const bytes = Uint8Array.from(binary, (c) => c.charCodeAt(0));
      return new TextDecoder().decode(bytes);
    } catch (e) {
      console.error("[SimpCity Re-re-direct] Failed to decode base64:", str, e);
      return null;
    }
  }

  function extractTargetFromUrl(href) {
    try {
      const url = new URL(href, window.location.origin);
      let targetUrl = url.searchParams.get("to");
      const mode = url.searchParams.get("m");

      if (targetUrl && mode === "b64") {
        targetUrl = decodeTarget(targetUrl);
      }

      if (targetUrl && isValidUrl(targetUrl)) {
        return targetUrl;
      }
    } catch (e) {
      // Silently fail for invalid URLs
    }
    return null;
  }

  // fallback for when we are already on a redirect page
  if (window.location.pathname.includes("/redirect/")) {
    const immediateTarget = extractTargetFromUrl(window.location.href);
    if (immediateTarget) {
      window.location.replace(immediateTarget);
      return;
    }

    // wait for DOM if parameters weren't available in search string
    document.addEventListener("DOMContentLoaded", () => {
      const link = document.querySelector(".simpLinkProxy-targetLink");
      if (link && link.href && isValidUrl(link.href)) {
        window.location.replace(link.href);
      }
    });
  }

  function processSingleLink(link) {
    link.dataset.bypassed = "true";
    const targetUrl = extractTargetFromUrl(link.href);

    if (targetUrl) {
      link.href = targetUrl;
      link.rel = "noopener noreferrer";
      link.removeAttribute("data-proxy-handler");
      link.removeAttribute("data-blank-handler");
      link.removeAttribute("data-proxy-href");
    }
  }

  function processLinks() {
    const links = document.querySelectorAll(
      'a[href*="/redirect/?to="]:not([data-bypassed])'
    );
    links.forEach(processSingleLink);
  }

  // intercept click events as a fallback
  document.addEventListener(
    "click",
    (e) => {
      const link = e.target.closest('a[href*="/redirect/?to="]');
      if (link && !link.dataset.bypassed) {
        processSingleLink(link);
      }
    },
    true
  );

  let isScheduled = false;
  function scheduleProcessLinks() {
    if (isScheduled) return;
    isScheduled = true;
    requestAnimationFrame(() => {
      processLinks();
      isScheduled = false;
    });
  }

  const observer = new MutationObserver((mutations) => {
    const hasAddedNodes = mutations.some((m) => m.addedNodes.length > 0);
    if (hasAddedNodes) {
      scheduleProcessLinks();
    }
  });

  observer.observe(document.documentElement, {
    childList: true,
    subtree: true,
  });

  if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", processLinks);
  } else {
    processLinks();
  }
})();