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d2ypp2/scripts/linux/probe_live_access.sh

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+#!/usr/bin/env bash
+# 排查「live.local refused to connect」：多为 :80 无进程、服务未起、或跨机 mDNS/防火墙。
+# 在设备本机执行: sudo bash scripts/linux/probe_live_access.sh
+set +euo pipefail
+
+SELF_DIR="$(cd "$(dirname "$0")" && pwd)"
+INSTALL_TAG="probe"
+# shellcheck source=scripts/linux/lib/common.sh
+. "$SELF_DIR/lib/common.sh"
+
+load_env
+
+echo "=== Probe: refused to connect (no listener / firewall / wrong host) ==="
+echo "Note: 502 = reverse proxy up but upstream dead; refused = nothing accepting TCP."
+echo ""
+
+echo "--- Host / IP ---"
+echo "hostname: $(hostname 2>/dev/null)"
+LAN_IP=""
+LAN_IP="$(detect_preferred_lan_ip || true)"
+echo "guess LAN IP: ${LAN_IP:-unknown}"
+echo ""
+
+echo "--- systemd (need root for full status) ---"
+for u in live-console live-edge; do
+  if systemctl is-active "$u.service" >/dev/null 2>&1; then
+    echo "$u.service: active"
+  else
+    echo "$u.service: INACTIVE — run: sudo systemctl status $u.service"
+  fi
+done
+echo ""
+
+echo "--- TCP listeners :80 and :${PORT} ---"
+if command -v ss >/dev/null 2>&1; then
+  ss -tlnp 2>/dev/null | grep -E ":80\\b|:${PORT}\\b" || echo "(no LISTEN on :80 or :${PORT})"
+else
+  netstat -tlnp 2>/dev/null | grep -E ":80\\b|:${PORT}\\b" || true
+fi
+echo ""
+
+echo "--- Loopback checks ---"
+if curl -sf -m 5 "http://127.0.0.1:${PORT}/health" >/dev/null; then
+  echo "OK  http://127.0.0.1:${PORT}/health"
+else
+  echo "FAIL http://127.0.0.1:${PORT}/health  → fix live-console first: journalctl -u live-console.service -n 60"
+fi
+
+code="$(curl -sS -m 5 -o /dev/null -w '%{http_code}' "http://127.0.0.1/" 2>/dev/null)"
+if [ "$code" = "000" ] || [ -z "$code" ]; then
+  echo "FAIL http://127.0.0.1/ (port 80) — live-edge/Caddy not listening or connection refused"
+  echo "     Try: sudo bash scripts/linux/reinstall_live_edge.sh && sudo systemctl restart live-edge.service"
+elif [ "$code" = "502" ]; then
+  echo "WARN http://127.0.0.1/ → 502 — Caddy up but upstream :${PORT} down; restart live-console"
+else
+  echo "OK   http://127.0.0.1/ → HTTP $code"
+fi
+echo ""
+
+echo "--- From your phone/PC browser ---"
+echo "1) Same Wi‑Fi/LAN as this box."
+echo "2) Try:  http://${LAN_IP}:${PORT}/   (direct control plane, bypasses :80 and mDNS)"
+echo "3) live.local needs mDNS (Android often OK; Windows may need Bonjour or use IP)."
+echo "4) If OK on IP but not live.local: Avahi on this host — systemctl status avahi-daemon"
+echo ""
+
+if ! systemctl is-active live-console.service >/dev/null 2>&1; then
+  echo "=== Fix live-console (your case: edge OK, :${PORT} down) ==="
+  echo "sudo systemctl reset-failed live-console.service 2>/dev/null || true"
+  echo "sudo systemctl enable --now live-console.service"
+  echo "sleep 3 && curl -sf http://127.0.0.1:${PORT}/health && echo OK || echo still failing — logs:"
+  echo "sudo journalctl -u live-console.service -n 80 --no-pager"
+  echo ""
+  echo "After git pull / code update, prefer: sudo bash upgrade-live.sh"
+  echo "Only systemd unit changed?  sudo bash refresh-live-unit.sh"
+  echo ""
+fi