sharepoint-transcribe/sp-stream-helper.user.js

// ==UserScript==
// @name         SharePoint Stream Helper
// @namespace    https://github.com/sp-stream-helper
// @version      1.1
// @description  一键复制 SharePoint Stream videomanifest 请求为 cURL 格式
// @match        https://*.sharepoint.com/personal/*/_layouts/*/stream.aspx*
// @match        https://*.sharepoint.com/sites/*/_layouts/*/stream.aspx*
// @grant        none
// @run-at       document-start
// ==/UserScript==

(function () {
    'use strict';

    let capturedManifest = null;
    let btnReady = false;

    // ========================================
    // 1. 在 document-start 阶段拦截 fetch/XHR
    //    @grant none 让脚本在页面上下文运行
    // ========================================

    // --- 拦截 fetch ---
    const origFetch = window.fetch;
    window.fetch = function (input, init) {
        try {
            const url = typeof input === 'string' ? input : (input?.url || '');
            const method = (init?.method || input?.method || 'GET').toUpperCase();
            const headers = extractHeaders(init?.headers || input?.headers);
            maybeCapture(method, url, headers);
        } catch (e) { /* 不影响原始请求 */ }
        return origFetch.apply(this, arguments);
    };

    // --- 拦截 XMLHttpRequest ---
    const origOpen = XMLHttpRequest.prototype.open;
    const origSetHeader = XMLHttpRequest.prototype.setRequestHeader;
    const origSend = XMLHttpRequest.prototype.send;

    XMLHttpRequest.prototype.open = function (method, url) {
        this._spH = { method: (method || 'GET').toUpperCase(), url: url || '', headers: {} };
        return origOpen.apply(this, arguments);
    };

    XMLHttpRequest.prototype.setRequestHeader = function (name, value) {
        if (this._spH) this._spH.headers[name] = value;
        return origSetHeader.apply(this, arguments);
    };

    XMLHttpRequest.prototype.send = function () {
        if (this._spH) maybeCapture(this._spH.method, this._spH.url, this._spH.headers);
        return origSend.apply(this, arguments);
    };

    // ========================================
    // 2. 辅助函数
    // ========================================
    function extractHeaders(raw) {
        const h = {};
        if (!raw) return h;
        if (raw instanceof Headers) {
            raw.forEach((v, k) => { h[k] = v; });
        } else if (Array.isArray(raw)) {
            raw.forEach(([k, v]) => { h[k] = v; });
        } else if (typeof raw === 'object') {
            Object.keys(raw).forEach(k => { h[k] = raw[k]; });
        }
        return h;
    }

    function maybeCapture(method, url, headers) {
        if (!url || !url.includes('videomanifest')) return;
        if (method === 'OPTIONS') return;

        // 必须有 pac token
        const pacKey = Object.keys(headers).find(k => k.toLowerCase() === 'x-spopactoken');
        if (!pacKey) return;

        capturedManifest = { method, url, headers: { ...headers }, time: new Date().toLocaleTimeString() };
        console.log('[SP Helper] ✅ 捕获 videomanifest!', url.substring(0, 80) + '...');
        if (btnReady) updateButton();
    }

    // ========================================
    // 3. 备用方案: PerformanceObserver 监听
    //    如果 fetch/XHR 拦截失败，从 performance entries 拿 URL
    //    再从 g_fileInfo 拿 PAC token 拼 cURL
    // ========================================
    function startPerfObserver() {
        try {
            const obs = new PerformanceObserver((list) => {
                for (const entry of list.getEntries()) {
                    if (entry.name && entry.name.includes('videomanifest') && !entry.name.includes('OPTIONS')) {
                        if (!capturedManifest) {
                            // 从 g_fileInfo 获取 PAC token
                            const pacToken = getPacToken();
                            if (pacToken) {
                                capturedManifest = {
                                    method: 'GET',
                                    url: entry.name,
                                    headers: { 'x-spopactoken': pacToken },
                                    time: new Date().toLocaleTimeString(),
                                    source: 'PerformanceObserver',
                                };
                                console.log('[SP Helper] ✅ 通过 PerformanceObserver 捕获!');
                                if (btnReady) updateButton();
                            }
                        }
                    }
                }
            });
            obs.observe({ type: 'resource', buffered: true });
        } catch (e) {
            console.log('[SP Helper] PerformanceObserver 不可用:', e.message);
        }
    }

    function getPacToken() {
        // 方法1: g_fileInfo
        try {
            if (window.g_fileInfo) {
                const code = window.g_fileInfo['.driveAccessCode'] ||
                             window.g_fileInfo['.driveAccessCodeV21'];
                if (code) return code;
            }
        } catch (e) {}

        // 方法2: 从页面 HTML 中提取
        try {
            const html = document.documentElement.innerHTML;
            const m = html.match(/["']\.driveAccessCode["']\s*:\s*["']([^"']+)["']/);
            if (m) return m[1];
        } catch (e) {}

        return null;
    }

    // ========================================
    // 4. 生成 cURL
    // ========================================
    function toCurl(req) {
        const parts = [`curl '${req.url}'`];

        // 从捕获的 headers 中提取 pac token 和 origin/referer
        let pacToken = '';
        let origin = '';
        let referer = '';
        for (const [name, value] of Object.entries(req.headers)) {
            const lower = name.toLowerCase();
            if (lower === 'x-spopactoken') pacToken = value;
            if (lower === 'origin') origin = value;
            if (lower === 'referer') referer = value;
        }

        // 固定 headers (模拟浏览器 Chrome 146)
        parts.push(`  -H 'accept: */*'`);
        parts.push(`  -H 'accept-language: zh-CN,zh;q=0.9'`);
        if (origin) parts.push(`  -H 'origin: ${origin}'`);
        parts.push(`  -H 'priority: u=1, i'`);
        if (referer) parts.push(`  -H 'referer: ${referer}'`);
        parts.push(`  -H 'sec-ch-ua: "Chromium";v="146", "Not-A.Brand";v="24", "Google Chrome";v="146"'`);
        parts.push(`  -H 'sec-ch-ua-mobile: ?0'`);
        parts.push(`  -H 'sec-ch-ua-platform: "Windows"'`);
        parts.push(`  -H 'sec-fetch-dest: empty'`);
        parts.push(`  -H 'sec-fetch-mode: cors'`);
        parts.push(`  -H 'sec-fetch-site: cross-site'`);
        parts.push(`  -H 'user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36'`);
        if (pacToken) {
            const safeVal = pacToken.replace(/'/g, "'\\''");
            parts.push(`  -H 'x-spopactoken: ${safeVal}'`);
        }

        return parts.join(' \\\n');
    }

    // ========================================
    // 5. UI
    // ========================================
    function createButton() {
        const btn = document.createElement('div');
        btn.id = 'sp-helper-btn';
        btn.textContent = '⏳ 等待视频播放...';
        Object.assign(btn.style, {
            position: 'fixed',
            bottom: '20px',
            right: '20px',
            zIndex: '2147483647',
            padding: '10px 18px',
            borderRadius: '8px',
            background: '#555',
            color: '#ccc',
            fontSize: '14px',
            fontFamily: 'Consolas, "Courier New", monospace',
            cursor: 'not-allowed',
            boxShadow: '0 2px 12px rgba(0,0,0,0.4)',
            transition: 'all 0.3s',
            userSelect: 'none',
        });
        btn.addEventListener('click', onCopy);
        document.body.appendChild(btn);
        btnReady = true;
        return btn;
    }

    function updateButton() {
        let btn = document.getElementById('sp-helper-btn');
        if (!btn) btn = createButton();
        if (capturedManifest) {
            const src = capturedManifest.source ? ` [${capturedManifest.source}]` : '';
            btn.innerHTML = `📋 复制 cURL <span style="font-size:11px;opacity:0.6">${capturedManifest.time}${src}</span>`;
            btn.style.background = '#0078d4';
            btn.style.color = '#fff';
            btn.style.cursor = 'pointer';
        }
    }

    function onCopy() {
        if (!capturedManifest) return;
        const curl = toCurl(capturedManifest);

        navigator.clipboard.writeText(curl).then(() => {
            showCopied();
        }).catch(() => {
            // fallback
            const ta = document.createElement('textarea');
            ta.value = curl;
            ta.style.cssText = 'position:fixed;left:-9999px';
            document.body.appendChild(ta);
            ta.select();
            document.execCommand('copy');
            ta.remove();
            showCopied();
        });

        console.log('[SP Helper] cURL 已复制 (' + curl.length + ' chars)');
    }

    function showCopied() {
        const btn = document.getElementById('sp-helper-btn');
        if (!btn) return;
        const prev = btn.innerHTML;
        btn.innerHTML = '✅ 已复制!';
        btn.style.background = '#107c10';
        setTimeout(() => {
            btn.innerHTML = prev;
            btn.style.background = '#0078d4';
        }, 2000);
    }

    // ========================================
    // 6. 启动
    // ========================================
    // DOM ready 后创建按钮和启动 PerformanceObserver
    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', init);
    } else {
        init();
    }

    function init() {
        createButton();
        startPerfObserver();
        // 如果已经捕获到了（fetch/XHR 拦截在 document-start 就生效）
        if (capturedManifest) updateButton();
        console.log('[SP Helper] 已加载，等待 videomanifest 请求...');
    }
})();