From 2b64e30bf72cec1ee2cb7dfe5e3e98e26d9057e4 Mon Sep 17 00:00:00 2001
From: Razvan Dimescu <ssaricu@gmail.com>
Date: Sun, 22 Mar 2026 11:04:54 +0200
Subject: [PATCH] show upstream DNS in stats API and dashboard footer
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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Expose current upstream address in /stats response. Dashboard footer
now shows "Upstream: x.x.x.x:53" — updates live when the network
watcher swaps the upstream.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 site/dashboard.html | 4 +++-
 src/api.rs          | 4 ++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/site/dashboard.html b/site/dashboard.html
index f600a0a..a0434a1 100644
--- a/site/dashboard.html
+++ b/site/dashboard.html
@@ -873,6 +873,7 @@ async function refresh() {
     document.getElementById('totalQueries').textContent = formatNumber(q.total);
     document.getElementById('uptime').textContent = formatUptime(stats.uptime_secs);
     document.getElementById('uptimeSub').textContent = formatUptimeSub(stats.uptime_secs);
+    document.getElementById('footerUpstream').textContent = stats.upstream || '';
     document.getElementById('overrideCount').textContent = stats.overrides.active;
     document.getElementById('blockedCount').textContent = formatNumber(q.blocked);
     const bl = stats.blocking;
@@ -1150,7 +1151,8 @@ setInterval(refresh, 2000);
 </script>
 
 <div style="text-align:center;padding:0.8rem;font-family:var(--font-mono);font-size:0.68rem;color:var(--text-dim);">
-  Logs: <span id="logPath" style="user-select:all;">macOS: /usr/local/var/log/numa.log · Linux: journalctl -u numa -f</span>
+  Upstream: <span id="footerUpstream" style="user-select:all;color:var(--emerald);"></span>
+  · Logs: <span id="logPath" style="user-select:all;">macOS: /usr/local/var/log/numa.log · Linux: journalctl -u numa -f</span>
   · <a href="https://github.com/razvandimescu/numa" target="_blank" rel="noopener" style="color:var(--amber);text-decoration:none;">GitHub</a>
 </div>
 
diff --git a/src/api.rs b/src/api.rs
index 0c6bc54..b3ae490 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -126,6 +126,7 @@ struct QueryLogResponse {
 #[derive(Serialize)]
 struct StatsResponse {
     uptime_secs: u64,
+    upstream: String,
     queries: QueriesStats,
     cache: CacheStats,
     overrides: OverrideStats,
@@ -435,8 +436,11 @@ async fn stats(State(ctx): State<Arc<ServerCtx>>) -> Json<StatsResponse> {
     let override_count = ctx.overrides.lock().unwrap().active_count();
     let bl_stats = ctx.blocklist.lock().unwrap().stats();
 
+    let upstream = ctx.upstream.lock().unwrap().to_string();
+
     Json(StatsResponse {
         uptime_secs: snap.uptime_secs,
+        upstream,
         queries: QueriesStats {
             total: snap.total,
             forwarded: snap.forwarded,