wol-gate: 매직패킷 발송 시 트리거한 요청 출처 로깅

깨우기 원인이 실사용자 접속인지 봇/스캐너 트래픽인지 구분할 수 있도록
IP, User-Agent, 요청 경로를 로그에 남김.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

wol-gate/server.js

@@ -78,10 +78,21 @@ function renderWakingPage() {
 </body></html>`;
 }
 
-function maybeWake() {
+function describeRequester(req) {
+  const ip = req.headers['x-forwarded-for'] || req.socket.remoteAddress;
+  const ua = req.headers['user-agent'] || '-';
+  const host = req.headers['host'] || '-';
+  return `${ip} "${req.method} ${host}${req.url}" UA="${ua}"`;
+}
+
+function maybeWake(req) {
   const now = Date.now();
-  if (now - lastWakeAt <= WAKE_COOLDOWN_MS) return;
+  if (now - lastWakeAt <= WAKE_COOLDOWN_MS) {
+    console.log(`[wol-gate] wake suppressed (cooldown) - triggered by ${describeRequester(req)}`);
+    return;
+  }
   lastWakeAt = now;
+  console.log(`[wol-gate] waking - triggered by ${describeRequester(req)}`);
   try {
     sendMagicPacket(TARGET_MAC, BROADCAST_ADDR, WOL_PORT);
   } catch (e) {
@@ -109,7 +120,7 @@ const server = http.createServer(async (req, res) => {
     proxyRequest(req, res);
     return;
   }
-  maybeWake();
+  maybeWake(req);
   res.writeHead(200, { 'Content-Type': 'text/html; charset=utf-8' });
   res.end(renderWakingPage());
 });
@@ -117,7 +128,7 @@ const server = http.createServer(async (req, res) => {
 // Forward WebSocket upgrades too, once awake (homeclaw uses WS heavily).
 server.on('upgrade', async (req, socket, head) => {
   if (!(await checkTargetAlive())) {
-    maybeWake();
+    maybeWake(req);
     socket.destroy();
     return;
   }