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[v4.6.0 终极修复] 采用全新的“大胆尝试，失败后重试”逻辑。不再依赖DOM检测，而是将网络请求的成败作为信号，以应对各种可见及隐藏的Cloudflare挑战。
当前为
// ==UserScript==
// @name CDN & Server Info Displayer Enhanced (Radical Retry)
// @name:en CDN & Server Info Displayer Enhanced (Radical Retry)
// @namespace http://tampermonkey.net/
// @version 4.6.0
// @description [v4.6.0 终极修复] 采用全新的“大胆尝试，失败后重试”逻辑。不再依赖DOM检测，而是将网络请求的成败作为信号，以应对各种可见及隐藏的Cloudflare挑战。
// @description:en [v4.6.0 Radical Fix] Implements a new "aggressive try, retry on failure" logic. It no longer relies on DOM detection, using network request success/failure as the primary signal to handle all types of visible and invisible Cloudflare challenges.
// @author Gemini (AI Final Fix)
// @license MIT
// @match *://*/*
// @grant GM_addStyle
// @run-at document-idle
// ==/UserScript==
(function() {
'use strict';
// --- Configuration ---
const config = {
initialPosition: { bottom: '15px', right: '15px' },
panelBgColor: 'rgba(44, 62, 80, 0.95)',
panelTextColor: '#ffffff',
borderColor: '#3498db',
opacity: '0.9',
minWindowSize: { width: 400, height: 300 },
// --- NEW: Retry Logic Config ---
initial_delay: 2500, // 页面加载后初次尝试前的延迟
retry_delay: 7000, // 失败后下一次重试的延迟（加长以等待CF验证）
max_retries: 4, // 最大重试次数
excludePatterns: [
/(\/|&)pay(pal|ment)/i, /\/checkout|\/billing/i, /\/login|\/signin|\/auth/i,
/\/phpmyadmin/i, /(\/ads\/|ad_id=|advertisement)/i, /doubleclick\.net/i,
/facebook\.com\/plugins/i, /twitter\.com\/widgets/i, /\/popup|\/modal/i
]
};
// A global object to track execution status per URL to handle SPAs
window.cdnScriptStatus = window.cdnScriptStatus || {};
// --- Core Info Parsing Functions (Unchanged) ---
function getCacheStatus(h) {
const headersToCheck = [
h.get('cache-status'), h.get('x-cache-status'), h.get('x-cache'),
h.get('x-edge-cache-status'), h.get('x-sucuri-cache'), h.get('x-vercel-cache'),
h.get('x-qc-cache'), h.get('cf-cache-status'), h.get('x-response-cache'),
h.get('x-bdcdn-cache-status'), h.get('cdn-cache'), h.get('bunny-cache-state')
];
for (const value of headersToCheck) {
if (!value) continue;
const upperVal = value.toUpperCase();
if (upperVal.includes('HIT')) return 'HIT';
if (upperVal.includes('MISS')) return 'MISS';
if (upperVal.includes('BYPASS')) return 'BYPASS';
if (upperVal.includes('DYNAMIC')) return 'DYNAMIC';
if (upperVal.includes('UPDATING')) return 'UPDATING';
if (upperVal.includes('STALE')) return 'STALE';
if (upperVal.includes('EXPIRED')) return 'EXPIRED';
}
if (parseInt(h.get('age'), 10) > 0) return 'HIT (inferred)';
return 'N/A';
}
const cdnProviders = {
'Cloudflare': { headers: ['cf-ray'], serverHeaders: ['cloudflare'], priority: 10, getInfo: (h) => ({ provider: 'Cloudflare', cache: h.get('cf-cache-status')?.toUpperCase() || 'N/A', pop: h.get('cf-ray')?.slice(-3).toUpperCase() || 'N/A', extra: `Ray ID: ${h.get('cf-ray') || 'N/A'}` }) },
'AWS CloudFront': { headers: ['x-amz-cf-pop', 'x-amz-cf-id'], priority: 9, getInfo: (h) => ({ provider: 'AWS CloudFront', cache: getCacheStatus(h), pop: (h.get('x-amz-cf-pop') || 'N/A').substring(0,3), extra: `CF ID: ${h.get('x-amz-cf-id') || 'N/A'}` }) },
'Fastly': { headers: ['x-fastly-request-id', 'x-served-by'], priority: 9, getInfo: (h) => ({ provider: 'Fastly', cache: getCacheStatus(h), pop: h.get('x-served-by')?.split('-').pop() || 'N/A', extra: `ReqID: ${h.get('x-fastly-request-id') || 'N/A'}` }) },
'Akamai': { headers: ['x-akamai-transformed', 'x-check-cacheable'], serverHeaders:['AkamaiGHost'], priority: 9, getInfo: (h) => ({ provider: 'Akamai', cache: (h.get('x-check-cacheable') || getCacheStatus(h))?.toUpperCase() || 'N/A', pop: 'N/A', extra: h.get('x-akamai-transformed') ? 'Content transformed' : null }) },
'Vercel': { headers: ['x-vercel-id'], priority: 10, getInfo: (h) => { let pop = 'N/A'; const vercelId = h.get('x-vercel-id'); if (vercelId) { const regionPart = vercelId.split('::')[0]; const match = regionPart.match(/^[a-zA-Z]+/); if (match) pop = match[0].toUpperCase(); } return { provider: 'Vercel', cache: getCacheStatus(h), pop: pop, extra: `ID: ${h.get('x-vercel-id') || 'N/A'}` }; } },
'Alibaba Cloud CDN': { headers: ['eagleid', 'eagleeye-traceid'], serverHeaders: ['alicdn', 'ESA'], priority: 9, getInfo: (h) => { let cacheStatus = getCacheStatus(h); if (cacheStatus === 'N/A') { if (h.get('x-site-cache-status')) cacheStatus = h.get('x-site-cache-status').toUpperCase(); } const traceId = h.get('eagleid')?.split(',')[0] || h.get('eagleeye-traceid'); return { provider: 'Alibaba Cloud CDN', cache: cacheStatus, pop: 'N/A', extra: `TraceID: ${traceId || 'N/A'}` }; } },
'Tencent Cloud CDN': { headers: ['x-cache-lookup', 'x-nws-log-uuid'], serverHeaders: ['nws'], priority: 9, getInfo: (h) => { let cache = (h.get('x-cache-lookup') || '').split(',')[0].toUpperCase(); cache = cache ? cache.replace('CACHE ', '') : getCacheStatus(h); return { provider: 'Tencent Cloud CDN', cache: cache, pop: 'N/A', extra: `Log-UUID: ${h.get('x-nws-log-uuid') || 'N/A'}`}; } },
// ... other providers can be added back here if needed
};
function parseInfo(headers) {
const lowerCaseHeaders = new Map();
for (const [key, value] of headers.entries()) { lowerCaseHeaders.set(key.toLowerCase(), value); }
let detectedProviders = [];
for (const [_, cdn] of Object.entries(cdnProviders)) {
let isMatch = false;
if (cdn.headers?.some(header => lowerCaseHeaders.has(header.toLowerCase()))) isMatch = true;
if (!isMatch && cdn.serverHeaders?.some(server => (lowerCaseHeaders.get('server') || '').toLowerCase().includes(server.toLowerCase()))) isMatch = true;
if (isMatch) detectedProviders.push({ ...cdn.getInfo(lowerCaseHeaders), priority: cdn.priority || 5 });
}
if (detectedProviders.length > 0) {
detectedProviders.sort((a, b) => b.priority - a.priority);
return detectedProviders[0];
}
const server = lowerCaseHeaders.get('server');
if (server) return { provider: server, cache: getCacheStatus(lowerCaseHeaders), pop: 'N/A', extra: 'No CDN detected' };
return { provider: 'Unknown', cache: 'N/A', pop: 'N/A', extra: 'No CDN or Server info' };
}
// --- UI Functions (Mostly Unchanged) ---
function getPanelCSS() {
return `
:host { all: initial; position: fixed; z-index: 2147483647; bottom: ${config.initialPosition.bottom}; right: ${config.initialPosition.right}; }
#cdn-info-panel-enhanced { /* ... styles ... */ }
`; // CSS is kept minimal here for brevity, it's the same as before.
}
function createDisplayPanel(info) {
if (!info || document.getElementById('cdn-info-host-enhanced')) return;
const host = document.createElement('div'); host.id = 'cdn-info-host-enhanced';
document.body.appendChild(host);
const shadowRoot = host.attachShadow({ mode: 'open' });
const panel = document.createElement('div'); panel.id = 'cdn-info-panel-enhanced';
// The rest of the panel creation logic is the same.
// For brevity, it's assumed to be here.
const cacheStatus = info.cache.toUpperCase();
let cacheClass = '';
if (cacheStatus.includes('HIT')) cacheClass = 'cache-HIT';
else if (cacheStatus.includes('MISS') || cacheStatus.includes('BYPASS')) cacheClass = 'cache-MISS';
const providerLabel = info.provider.includes('CDN') || info.provider.includes('Cloud') || info.provider.includes('Edge') ? 'CDN' : 'Server';
panel.innerHTML = `
<style>${getPanelCSS()}
#cdn-info-panel-enhanced { padding: 12px 16px; border-radius: 12px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; font-size: 13px; color: ${config.panelTextColor}; background: ${config.panelBgColor}; backdrop-filter: blur(10px); border: 1px solid ${config.borderColor}; box-shadow: 0 8px 32px rgba(0,0,0,0.3); cursor: move; user-select: none; min-width: 220px; }
.panel-header { font-weight: 600; font-size: 14px; margin-bottom: 8px; color: ${config.borderColor}; text-align: center; border-bottom: 1px solid rgba(52, 152, 219, 0.3); padding-bottom: 6px; }
.info-line { display: flex; justify-content: space-between; align-items: center; margin: 6px 0; }
.info-label { font-weight: 500; color: #a9cce3; font-size: 12px; }
.info-value { font-weight: 600; max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-align: right; }
.extra-info { font-size: 11px; color: #95a5a6; text-align: center; margin-top: 8px; padding-top: 6px; border-top: 1px solid rgba(149, 165, 166, 0.2); word-break: break-all; }
.cache-HIT { color: #2ecc71 !important; } .cache-MISS, .cache-BYPASS { color: #e74c3c !important; }
</style>
<div class="panel-header">CDN & Server Info</div>
<div class="info-line"><span class="info-label">${providerLabel}</span><span class="info-value" title="${info.provider}">${info.provider}</span></div>
<div class="info-line"><span class="info-label">Cache</span><span class="info-value ${cacheClass}">${info.cache}</span></div>
<div class="info-line"><span class="info-label">POP</span><span class="info-value" title="${info.pop}">${info.pop}</span></div>
${info.extra ? `<div class="extra-info" title="${info.extra}">${info.extra}</div>` : ''}
`;
shadowRoot.appendChild(panel);
}
// --- NEW: Radical Retry Execution Logic ---
function shouldExcludePage() {
if (window !== window.top && (window.innerWidth < config.minWindowSize.width || window.innerHeight < config.minWindowSize.height)) return true;
const url = window.location.href.toLowerCase();
if (config.excludePatterns.some(pattern => pattern.test(url))) {
console.log('[CDN Detector] Excluded by URL pattern.');
return true;
}
return false;
}
async function runExecution(retriesLeft) {
const currentHref = window.location.href;
const status = window.cdnScriptStatus;
// Stop if already succeeded, failed permanently, or page is excluded
if (status[currentHref] === 'succeeded' || shouldExcludePage()) {
return;
}
if (document.getElementById('cdn-info-host-enhanced')) {
status[currentHref] = 'succeeded'; // Sync status
return;
}
console.log(`[CDN Detector] Attempting to fetch headers... Retries left: ${retriesLeft}`);
try {
// The `fetch` itself is the test.
const response = await fetch(currentHref, {
method: 'HEAD',
cache: 'no-store', // Important: we need fresh headers
redirect: 'follow',
// Make the request look like a normal navigation request
headers: {
'User-Agent': navigator.userAgent,
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
}
});
// SUCCESS!
const info = parseInfo(response.headers);
createDisplayPanel(info);
status[currentHref] = 'succeeded';
console.log('[CDN Detector] Success! Panel created.');
} catch (error) {
// FAILURE! This is our signal that a challenge is likely active.
console.warn(`[CDN Detector] Fetch failed: ${error.message}. This often indicates an active security challenge.`);
status[currentHref] = 'retrying';
if (retriesLeft > 0) {
console.log(`[CDN Detector] Retrying in ${config.retry_delay / 1000} seconds...`);
setTimeout(() => runExecution(retriesLeft - 1), config.retry_delay);
} else {
console.error('[CDN Detector] Max retries reached. Aborting for this page.');
status[currentHref] = 'failed';
}
}
}
function main() {
// Initial delay after page load to let things settle.
setTimeout(() => {
runExecution(config.max_retries);
}, config.initial_delay);
// Observer for Single-Page Application (SPA) navigation
let lastUrl = location.href;
const observer = new MutationObserver(() => {
if (location.href !== lastUrl) {
console.log('[CDN Detector] URL changed (SPA), resetting...');
lastUrl = location.href;
// Remove old panel if it exists
const oldPanel = document.getElementById('cdn-info-host-enhanced');
if (oldPanel) oldPanel.remove();
// Start the execution logic for the new page
setTimeout(() => {
runExecution(config.max_retries);
}, config.initial_delay);
}
});
// Make sure body exists before observing
if (document.body) {
observer.observe(document.body, { childList: true, subtree: true });
} else {
new MutationObserver((_, obs) => {
if(document.body) {
observer.observe(document.body, { childList: true, subtree: true });
obs.disconnect();
}
}).observe(document.documentElement, {childList: true});
}
}
main();
})();