141 lines
4.7 KiB
HTML
141 lines
4.7 KiB
HTML
<!doctype html>
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<html lang="ko">
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<meta charset="utf-8">
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<title>bigbrother — MJPEG Viewer (minimal)</title>
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<body>
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<h3>bigbrother — MJPEG Viewer</h3>
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<label>Device ID:
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<input id="deviceId" placeholder="예: Q3F…(26자 Base32)" size="40">
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</label>
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<button id="btnConnect">Connect</button>
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<button id="btnDisconnect">Disconnect</button>
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<br><br>
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<img id="view" alt="MJPEG stream will appear here" />
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<pre id="log" style="white-space:pre-wrap;"></pre>
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<script>
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const logEl = document.getElementById('log');
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const imgEl = document.getElementById('view');
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const deviceIdEl = document.getElementById('deviceId');
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const signalingURL = 'wss://signaling.damhw.ee/ws/client';
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const iceServers = [
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{urls: 'stun:stun.cloudflare.com:3478'},
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{urls: 'stun:stun.l.google.com:19302'}
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];
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let ws = null;
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let pc = null;
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let dc = null;
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let sess = null;
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let key = null;
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function log(...args){ logEl.textContent += args.join(' ') + '\n'; }
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function sleep(ms){ return new Promise(r=>setTimeout(r,ms)); }
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async function ensureSW() {
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if (!('serviceWorker' in navigator)) throw new Error('Service Worker 미지원 브라우저');
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const reg = await navigator.serviceWorker.register('./sw.js', {scope: './'});
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await navigator.serviceWorker.ready;
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// 활성/컨트롤 보장
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if (!navigator.serviceWorker.controller) {
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// 새로고침 1회 필요할 수 있음. 최대한 기다려본다.
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await sleep(300);
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}
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}
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async function connect() {
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const deviceId = deviceIdEl.value.trim();
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if (!deviceId) { alert('DeviceID를 입력하세요'); return; }
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localStorage.setItem('bb_device_id', deviceId);
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await ensureSW();
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key = (crypto.randomUUID && crypto.randomUUID()) || String(Date.now())+Math.random();
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ws = new WebSocket(signalingURL);
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ws.onopen = async () => {
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log('[ws] open');
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ws.send(JSON.stringify({t:'connect', deviceId}));
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};
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ws.onmessage = async (ev) => {
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const msg = JSON.parse(ev.data);
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if (msg.t === 'accepted') {
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sess = msg.sess;
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log('[ws] accepted, sess=', sess);
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pc = new RTCPeerConnection({iceServers});
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// 우리가 DataChannel을 먼저 만들어 SDP에 포함
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dc = pc.createDataChannel('mjpeg');
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dc.binaryType = 'arraybuffer';
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dc.onopen = () => log('[dc] open');
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dc.onclose = () => log('[dc] close');
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dc.onmessage = (e) => {
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if (typeof e.data === 'string') {
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try {
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const j = JSON.parse(e.data);
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if (j.t === 'hdr') {
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// 헤더 수신 → SW에 스트림 시작 알림 후 <img src> 설정
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navigator.serviceWorker.controller && navigator.serviceWorker.controller.postMessage({
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type:'start', key, status: j.status, headers: j.headers
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});
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imgEl.src = '/mjpeg?key=' + encodeURIComponent(key);
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log('[dc] header received. content-type:', (j.headers && j.headers['Content-Type']) || (j.headers && j.headers['content-type']));
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} else if (j.t === 'eof') {
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navigator.serviceWorker.controller && navigator.serviceWorker.controller.postMessage({type:'eof', key});
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log('[dc] eof');
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} else if (j.t === 'error') {
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log('[dc] error:', j.msg);
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}
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} catch(_) {}
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} else {
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// 바이너리 청크 → SW로 전달
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const chunk = e.data; // ArrayBuffer
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navigator.serviceWorker.controller && navigator.serviceWorker.controller.postMessage({type:'chunk', key, chunk}, [chunk]);
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}
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};
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pc.onicecandidate = (e) => {
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if (e.candidate) {
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ws && ws.send(JSON.stringify({t:'ice', sess, candidate: e.candidate}));
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}
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};
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const offer = await pc.createOffer();
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await pc.setLocalDescription(offer);
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ws.send(JSON.stringify({t:'offer', sess, sdp: pc.localDescription}));
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} else if (msg.t === 'answer' && msg.sess === sess) {
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await pc.setRemoteDescription(msg.sdp);
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log('[ws] answer set');
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} else if (msg.t === 'ice' && msg.sess === sess) {
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try { await pc.addIceCandidate(msg.candidate); } catch(e){ /* ignore */ }
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} else if (msg.t === 'error') {
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log('[ws] error:', msg.reason || '');
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}
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};
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ws.onclose = () => log('[ws] close');
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ws.onerror = (e) => log('[ws] error', e.message||'');
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}
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function disconnect() {
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if (imgEl) imgEl.src = '';
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if (dc){ try{ dc.close(); }catch{} dc=null; }
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if (pc){ try{ pc.close(); }catch{} pc=null; }
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if (ws){ try{ ws.close(); }catch{} ws=null; }
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sess = null; key = null;
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log('[*] disconnected');
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}
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document.getElementById('btnConnect').onclick = connect;
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document.getElementById('btnDisconnect').onclick = disconnect;
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deviceIdEl.value = localStorage.getItem('bb_device_id') || '';
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</script>
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</body>
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</html>
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