webrtc/ip.html at main · cliayn/webrtc · GitHub

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>IP 极速探测工具 (v2.0)</title>
    <style>
        :root { --primary: #2563eb; --bg: #f8fafc; --success: #059669; }
        body { font-family: system-ui, -apple-system, sans-serif; background: var(--bg); color: #1e293b; display: flex; justify-content: center; padding: 20px; }
        .card { background: white; padding: 2rem; border-radius: 1rem; width: 100%; max-width: 500px; box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }
        h2 { margin-top: 0; color: #0f172a; border-bottom: 2px solid var(--primary); padding-bottom: 10px; display: flex; justify-content: space-between; align-items: center; }
        .res-item { margin: 1.2rem 0; padding: 1rem; background: #f1f5f9; border-radius: 0.5rem; border-left: 4px solid #cbd5e1; transition: all 0.3s; }
        .res-item.active { border-left-color: var(--primary); background: #eff6ff; }
        .label { font-size: 0.75rem; color: #64748b; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; }
        .value { font-family: 'ui-monospace', 'Cascadia Code', monospace; font-size: 1.1rem; color: #334155; margin-top: 4px; word-break: break-all; min-height: 1.5rem; }
        .source { font-size: 10px; color: #94a3b8; margin-top: 4px; display: block; }
        button { width: 100%; background: var(--primary); color: white; border: none; padding: 14px; border-radius: 0.5rem; font-weight: 600; cursor: pointer; transition: transform 0.1s, opacity 0.2s; }
        button:active { transform: scale(0.98); }
        .loading { color: #94a3b8; font-style: italic; animation: pulse 1.5s infinite; }
        @keyframes pulse { 50% { opacity: 0.5; } }
        .tag { font-size: 10px; padding: 2px 6px; border-radius: 4px; background: #e2e8f0; margin-left: 8px; vertical-align: middle; }
    </style>
</head>
<body>

<div class="card">
    <h2>🌐 IP 极速探测 <span id="status-tag" class="tag">Ready</span></h2>

    <div id="box-v4" class="res-item">
        <div class="label">公网 IPv4 地址</div>
        <div id="v4-val" class="value loading">等待探测...</div>
        <span id="v4-src" class="source"></span>
    </div>

    <div id="box-v6" class="res-item">
        <div class="label">公网 IPv6 地址</div>
        <div id="v6-val" class="value loading">等待探测...</div>
        <span id="v6-src" class="source"></span>
    </div>

    <button onclick="startProbe()">立即刷新探测</button>

    <div style="margin-top: 1rem; font-size: 12px; color: #94a3b8; line-height: 1.5;">
        • 采用 <b>WebRTC + API</b> 混合探测模式<br>
        • 已针对 iPad/iOS 及私密转发进行兼容优化<br>
        • 探测结果仅在本地显示，不进行后台存留
    </div>
</div>

<script>
    const v4El = document.getElementById('v4-val');
    const v6El = document.getElementById('v6-val');
    const v4Src = document.getElementById('v4-src');
    const v6Src = document.getElementById('v6-src');

    function updateUI(type, value, source) {
        const el = type === 'v4' ? v4El : v6El;
        const srcEl = type === 'v4' ? v4Src : v6Src;
        const box = document.getElementById(`box-${type}`);

        // 如果已经有结果且是 API 获取的，WebRTC 就不覆盖它（反之亦然，除非新结果更准）
        if (el.classList.contains('loading') || !srcEl.innerText.includes('API')) {
            el.innerText = value;
            el.className = "value";
            srcEl.innerText = "检测源: " + source;
            box.classList.add('active');
        }
    }

    async function probeByAPI() {
        // 使用针对国内优化且支持 CORS 的接口
        const apis = [
            { url: 'https://4.ipw.cn/api/ip/myip', type: 'v4' },
            { url: 'https://6.ipw.cn/api/ip/myip', type: 'v6' }
        ];

        apis.forEach(api => {
            fetch(api.url)
                .then(res => res.text())
                .then(ip => {
                    if (ip) updateUI(api.type, ip.trim(), "HTTP API (高可靠)");
                })
                .catch(() => {/* 忽略单个失败 */});
        });
    }

    function probeByWebRTC() {
        const pc = new RTCPeerConnection({
            iceServers: [
                { urls: 'stun:stun.cloudflare.com:3478' },
                { urls: 'stun:stun.l.google.com:19302' }
            ]
        });

        pc.createDataChannel("");
        pc.createOffer().then(offer => pc.setLocalDescription(offer));

        pc.onicecandidate = (ice) => {
            if (!ice || !ice.candidate) return;
            const cand = ice.candidate.candidate;

            // 匹配 IPv4
            const v4Match = /([0-9]{1,3}(\.[0-9]{1,3}){3})/.exec(cand);
            if (v4Match && !cand.includes("192.168.") && !cand.includes("10.") && !cand.includes("172.")) {
                updateUI('v4', v4Match[1], "WebRTC (极速)");
            }

            // 匹配 IPv6
            const v6Match = /([0-9a-fA-F]{1,4}(:[0-9a-fA-F]{1,4}){5,7}|([0-9a-fA-F]{1,4}:){1,7}:|:((:[0-9a-fA-F]{1,4}){1,7}))/.exec(cand);
            if (v6Match && !cand.includes("fe80:")) {
                updateUI('v6', v6Match[1], "WebRTC (极速)");
            }
        };

        setTimeout(() => pc.close(), 3000);
    }

    function startProbe() {
        // 重置 UI
        [v4El, v6El].forEach(el => {
            el.innerText = "探测中...";
            el.className = "value loading";
        });
        [v4Src, v6Src].forEach(el => el.innerText = "");
        document.querySelectorAll('.res-item').forEach(b => b.classList.remove('active'));

        // 并行执行两种探测
        probeByWebRTC();
        probeByAPI();
    }

    // 页面加载自动执行
    window.onload = startProbe;
</script>

</body>
</html>