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Nexus Mods Fast Download

Overrides the "Manual" button on NexusMods mod pages to download the file without extra steps.

当前为 2025-02-04 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Nexus Mods Fast Download
  3. // @namespace    https://greasyfork.org/en/users/814191-ctosango
  4. // @version      1.1
  5. // @description  Overrides the "Manual" button on NexusMods mod pages to download the file without extra steps.
  6. // @author       Your Name
  7. // @match        https://www.nexusmods.com/*/mods/*
  8. // @icon         https://www.google.com/s2/favicons?sz=64&domain=nexusmods.com
  9. // @grant        none
  10. // @license MIT
  11. // ==/UserScript==
  12.  
  13. (function() {
  14.     'use strict';
  15.  
  16.     const spinnerCSS = `
  17.         @keyframes spinner {
  18.             to { transform: rotate(360deg); }
  19.         }
  20.         .nm-download-spinner {
  21.             border: 2px solid rgba(0,0,0,0.2);
  22.             border-left-color: #000;
  23.             border-radius: 50%;
  24.             width: 15px;
  25.             height: 15px;
  26.             margin: 0 5px 0 0;
  27.             animation: spinner 0.6s linear infinite;
  28.             display: inline-block;
  29.             vertical-align: middle;
  30.         }
  31.         .nm-download-error {
  32.             color: red;
  33.             font-size: 0.9em;
  34.             position: absolute;
  35.             top: -20px;
  36.             text-wrap: nowrap;
  37.             right: 0;
  38.         }
  39.         @media (max-width: 1280px) {
  40.             .nm-download-error {
  41.               left: 0;
  42.               right: unset;
  43.             }
  44.         }
  45.         .modactions.clearfix {
  46.             position: relative;
  47.             margin-top: 15px;
  48.         }
  49.     `;
  50.     const style = document.createElement('style');
  51.     style.textContent = spinnerCSS;
  52.     document.head.appendChild(style);
  53.  
  54.     function showError(message, manualBtn) {
  55.         console.error(message);
  56.         let errorEl = manualBtn.parentNode.querySelector('.nm-download-error');
  57.         if (!errorEl) {
  58.             errorEl = document.createElement('div');
  59.             errorEl.className = 'nm-download-error';
  60.             manualBtn.parentNode.appendChild(errorEl);
  61.         }
  62.         errorEl.textContent = message;
  63.     }
  64.  
  65.     function clearError(manualBtn) {
  66.         const errorEl = manualBtn.parentNode.querySelector('.nm-download-error');
  67.         if (errorEl) {
  68.             errorEl.remove();
  69.         }
  70.     }
  71.  
  72.     function setupManualButton() {
  73.         const manualLi = document.getElementById('action-manual');
  74.         if (!manualLi) return;
  75.         const manualBtn = manualLi.querySelector('a.btn.inline-flex');
  76.         if (!manualBtn) return;
  77.  
  78.         if (manualBtn.dataset.downloadOverrideSet === "true") return;
  79.  
  80.         observer.disconnect();
  81.  
  82.         if (!manualBtn.dataset.originalHref) {
  83.             manualBtn.dataset.originalHref = manualBtn.href;
  84.         }
  85.  
  86.         manualBtn.removeAttribute('href');
  87.  
  88.         manualBtn.dataset.downloadOverrideSet = "true";
  89.  
  90.         const svgIcon = manualBtn.querySelector('svg.icon');
  91.         if (svgIcon && !manualBtn._originalSvg) {
  92.             manualBtn._originalSvg = svgIcon.cloneNode(true);
  93.         }
  94.  
  95.         manualBtn.addEventListener('click', async function(e) {
  96.             e.preventDefault();
  97.             e.stopImmediatePropagation();
  98.             clearError(manualBtn);
  99.  
  100.             let spinner;
  101.             const currentSvg = manualBtn.querySelector('svg.icon');
  102.             if (currentSvg) {
  103.                 spinner = document.createElement('span');
  104.                 spinner.className = 'nm-download-spinner';
  105.                 currentSvg.parentNode.replaceChild(spinner, currentSvg);
  106.             } else {
  107.                 spinner = document.createElement('span');
  108.                 spinner.className = 'nm-download-spinner';
  109.                 manualBtn.appendChild(spinner);
  110.             }
  111.  
  112.             const originalUrl = manualBtn.dataset.originalHref;
  113.             if (!originalUrl) {
  114.                 showError("Error: Original URL not available.", manualBtn);
  115.                 spinner.remove();
  116.                 return;
  117.             }
  118.  
  119.             let urlObj;
  120.             try {
  121.                 urlObj = new URL(originalUrl, location.href);
  122.             } catch (err) {
  123.                 showError("Error parsing the original URL.", manualBtn);
  124.                 spinner.remove();
  125.                 return;
  126.             }
  127.             const fileId = urlObj.searchParams.get('file_id');
  128.             if (!fileId) {
  129.                 showError("Error: No file_id found in the URL.", manualBtn);
  130.                 spinner.remove();
  131.                 window.location.href = originalUrl;
  132.                 return;
  133.             }
  134.  
  135.             const gameId = window.current_game_id;
  136.             if (!gameId) {
  137.                 showError("Error: Variable current_game_id is unavailable.", manualBtn);
  138.                 spinner.remove();
  139.                 if (manualBtn._originalSvg) {
  140.                     spinner.parentNode.replaceChild(manualBtn._originalSvg, spinner);
  141.                 }
  142.                 return;
  143.             }
  144.  
  145.             const params = new URLSearchParams();
  146.             params.append('fid', fileId);
  147.             params.append('game_id', gameId);
  148.  
  149.             const postUrl = 'https://www.nexusmods.com/Core/Libs/Common/Managers/Downloads?GenerateDownloadUrl=';
  150.  
  151.             try {
  152.                 const response = await fetch(postUrl, {
  153.                     method: 'POST',
  154.                     headers: {
  155.                         'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8'
  156.                     },
  157.                     body: params.toString()
  158.                 });
  159.  
  160.                 if (!response.ok) {
  161.                     if (response.status === 403) {
  162.                         showError("Error: Not logged in or access denied.", manualBtn);
  163.                     } else {
  164.                         showError("Error: Failed to get download URL (" + response.statusText + ").", manualBtn);
  165.                     }
  166.                     if (spinner && spinner.parentNode && manualBtn._originalSvg) {
  167.                         spinner.parentNode.replaceChild(manualBtn._originalSvg, spinner);
  168.                     }
  169.                     return;
  170.                 }
  171.  
  172.                 const data = await response.json();
  173.                 if (data && data.url) {
  174.                     if (spinner && spinner.parentNode && manualBtn._originalSvg) {
  175.                         spinner.parentNode.replaceChild(manualBtn._originalSvg, spinner);
  176.                     }
  177.                     setTimeout(() => {
  178.                         window.location.href = data.url;
  179.                     }, 100);
  180.                 } else if (data && data.length === 0) {
  181.                     showError("Error: Please login to download mods.", manualBtn);
  182.                     if (spinner && spinner.parentNode && manualBtn._originalSvg) {
  183.                         spinner.parentNode.replaceChild(manualBtn._originalSvg, spinner);
  184.                     }
  185.                 } else {
  186.                     console.log(data);
  187.                     showError("Error: Unexpected response format.", manualBtn);
  188.                     if (spinner && spinner.parentNode && manualBtn._originalSvg) {
  189.                         spinner.parentNode.replaceChild(manualBtn._originalSvg, spinner);
  190.                     }
  191.                 }
  192.             } catch (err) {
  193.                 showError("Error during POST request: " + err.message, manualBtn);
  194.                 if (spinner && spinner.parentNode && manualBtn._originalSvg) {
  195.                     spinner.parentNode.replaceChild(manualBtn._originalSvg, spinner);
  196.                 }
  197.             }
  198.         }, true);
  199.  
  200.         observer.observe(document.body, { childList: true, subtree: true });
  201.     }
  202.  
  203.     const observer = new MutationObserver(() => {
  204.         setupManualButton();
  205.     });
  206.     observer.observe(document.body, { childList: true, subtree: true });
  207.  
  208.     if (document.readyState === 'loading') {
  209.         document.addEventListener('DOMContentLoaded', setupManualButton);
  210.     } else {
  211.         setupManualButton();
  212.     }
  213. })();