// ==UserScript==
// @name Tripo3D Model Downloader (Lite)
// @name:en Tripo3D Model Downloader (Lite)
// @name:ja Tripo3D モデルダウンローダー (Lite)
// @name:zh-CN Tripo3D 模型下载器 (Lite)
// @namespace https://github.com/CheerChen
// @version 1.0.0
// @description Passively capture model (GLB/GLTF) download URLs on Tripo3D Studio via network interception, with a one-click download button. No DOM polling.
// @description:en Passively capture model (GLB/GLTF) download URLs on Tripo3D Studio via network interception, with a one-click download button. No DOM polling.
// @description:ja Tripo3D Studioでネットワーク傍受によりモデル（GLB/GLTF）のダウンロードURLをパッシブに取得。ワンクリックでダウンロード。DOMポーリングなし。
// @description:zh-CN 在 Tripo3D Studio 通过网络拦截被动捕获模型（GLB/GLTF）下载链接，提供一键下载按钮，无需轮询 DOM。
// @author cheerchen37
// @match https://studio.tripo3d.ai/*
// @grant GM_xmlhttpRequest
// @run-at document-start
// @icon https://www.google.com/s2/favicons?domain=tripo3d.ai
// @license MIT
// @homepage https://github.com/CheerChen/userscripts
// @supportURL https://github.com/CheerChen/userscripts/issues
// @updateURL https://raw.githubusercontent.com/CheerChen/userscripts/master/tripo3d-model-downloader-lite.user.js
// ==/UserScript==
(function () {
'use strict';
// ── Config ──────────────────────────────────────────────────
const GLB_PATTERNS = ['.glb', '.gltf', '/model?', '/download?', 'cloudfront.net', 'tripo3d.ai/model'];
const API_PATTERNS = ['api.tripo3d.ai', '/api/', '/task/', '/model/', '/export', '/download'];
const MODEL_KEYS = ['model_url', 'glb_url', 'file_url', 'pbr_model', 'base_model',
'download_url', 'export_url', 'result_url', 'output_url', 'mesh_url'];
// ── State ───────────────────────────────────────────────────
const urls = []; // [{url, source, time}] newest first
let primary = null;
function isModelUrl(u) {
if (!u || typeof u !== 'string') return false;
const l = u.toLowerCase();
return GLB_PATTERNS.some(p => l.includes(p));
}
function isApiUrl(u) {
if (!u || typeof u !== 'string') return false;
const l = u.toLowerCase();
return API_PATTERNS.some(p => l.includes(p));
}
function capture(url, source) {
if (!url || !url.startsWith('http') || urls.some(e => e.url === url)) return;
urls.unshift({ url, source, time: Date.now() });
if (urls.length > 20) urls.length = 20;
// Prefer PBR > plain GLB > base
if (!primary || url.includes('pbr_model')) primary = url;
console.log(`[Tripo-Lite] ${source}: ${url.slice(0, 80)}`);
render();
}
// Shallow scan — API responses are flat JSON, no need for deep recursion.
function scanShallow(obj, source, depth) {
depth = depth || 0;
if (depth > 5 || !obj || typeof obj !== 'object') return;
for (const key in obj) {
if (!Object.prototype.hasOwnProperty.call(obj, key)) continue;
const v = obj[key];
if (typeof v === 'string' && v.startsWith('http')) {
const kl = key.toLowerCase();
if (MODEL_KEYS.some(k => kl.includes(k)) && isModelUrl(v)) {
capture(v, source + ':' + key);
}
} else if (typeof v === 'object' && v !== null) {
scanShallow(v, source, depth + 1);
}
}
}
// ── 1. Fetch hook ───────────────────────────────────────────
const _fetch = window.fetch;
window.fetch = function (...args) {
const url = args[0]?.url || String(args[0]);
if (isModelUrl(url)) capture(url, 'fetch');
return _fetch.apply(this, args).then(res => {
if (isApiUrl(url) && !isModelUrl(url)) {
const ct = res.headers.get('content-type') || '';
if (ct.includes('json')) {
res.clone().json().then(d => scanShallow(d, 'api')).catch(() => {});
}
}
return res;
});
};
// ── 2. PerformanceObserver ──────────────────────────────────
try {
new PerformanceObserver(list => {
for (const e of list.getEntries()) {
if (isModelUrl(e.name)) capture(e.name, 'resource');
}
}).observe({ entryTypes: ['resource'] });
} catch (e) {}
// Also catch resources that already loaded before script injection
try {
for (const e of performance.getEntriesByType('resource')) {
if (isModelUrl(e.name)) capture(e.name, 'resource-history');
}
} catch (e) {}
// ── 3. Download ─────────────────────────────────────────────
function filenameFromUrl(url) {
const name = url.split('?')[0].split('/').pop();
return (name && name.length > 3) ? name : `tripo_${Date.now()}.glb`;
}
function download(url) {
GM_xmlhttpRequest({
method: 'GET',
url,
responseType: 'blob',
timeout: 120000,
headers: { 'Referer': location.href, 'Origin': location.origin },
onload(r) {
if (r.status === 200) {
const a = document.createElement('a');
a.href = URL.createObjectURL(r.response);
a.download = filenameFromUrl(url);
document.body.appendChild(a);
a.click();
a.remove();
setTimeout(() => URL.revokeObjectURL(a.href), 5000);
toast('Download started');
} else {
toast(`HTTP ${r.status} — URL may have expired, refresh the page`, true);
}
},
onerror: () => toast('Network error', true),
ontimeout: () => toast('Timed out — file may be too large', true),
});
}
// ── 4. UI ───────────────────────────────────────────────────
let btn, badge, menu;
function toast(msg, isErr) {
const t = document.createElement('div');
t.textContent = msg;
t.style.cssText = `position:fixed;top:20px;right:20px;z-index:2147483647;
padding:10px 18px;border-radius:10px;font:13px -apple-system,BlinkMacSystemFont,sans-serif;
color:#fff;background:${isErr ? '#e53935' : '#2e7d32'};box-shadow:0 4px 14px rgba(0,0,0,.25);
transition:opacity .3s`;
document.body.appendChild(t);
setTimeout(() => { t.style.opacity = '0'; setTimeout(() => t.remove(), 300); }, 3000);
}
function build() {
// Shadow DOM so site styles can't leak in
const host = document.createElement('div');
host.id = 'tripo-lite-host';
host.style.cssText = 'position:fixed;bottom:24px;right:24px;z-index:2147483646';
const shadow = host.attachShadow({ mode: 'closed' });
shadow.innerHTML = `
`;
document.body.appendChild(host);
btn = shadow.getElementById('btn');
badge = shadow.getElementById('label');
menu = shadow.getElementById('menu');
btn.addEventListener('click', () => {
if (!primary) {
toast('No model URL captured yet — load a model first', true);
return;
}
if (urls.filter(e => isModelUrl(e.url)).length > 1) {
menu.classList.toggle('open');
} else {
download(primary);
}
});
menu.addEventListener('click', e => {
const item = e.target.closest('.item');
if (item) {
download(item.dataset.url);
menu.classList.remove('open');
}
});
// Close menu on outside click
document.addEventListener('click', e => {
if (!host.contains(e.target)) menu.classList.remove('open');
});
render();
}
function render() {
if (!btn) return;
const modelUrls = urls.filter(e => isModelUrl(e.url));
if (modelUrls.length === 0) {
btn.classList.remove('ready');
badge.textContent = 'Waiting…';
return;
}
btn.classList.add('ready');
badge.textContent = modelUrls.length > 1
? `Download (${modelUrls.length})`
: 'Download GLB';
// Populate menu
menu.innerHTML = modelUrls.map(e => {
const tag = e.url.includes('pbr_model') ? 'PBR'
: e.url.includes('base_model') ? 'Base' : 'GLB';
const short = e.url.length > 50 ? e.url.slice(0, 47) + '…' : e.url;
return ``;
}).join('');
}
if (document.body) build();
else document.addEventListener('DOMContentLoaded', build);
})();