fix: escape Prometheus label values (#2702)

fix: escape Prometheus label values (#2699)

Co-authored-by: potatosips <potatosips@users.noreply.github.com>

src/server/routes/metrics/prometheus.get.ts

@@ -3,6 +3,7 @@ import { setHeader } from 'h3';
 import Database from '#server/utils/Database';
 import WireGuard from '#server/utils/WireGuard';
 import { defineMetricsHandler } from '#server/utils/handler';
+import { formatPrometheusLabels } from '#server/utils/prometheus';
 import { isPeerConnected } from '#shared/utils/time';
 
 export default defineMetricsHandler('prometheus', async ({ event }) => {
@@ -27,7 +28,13 @@ async function getPrometheusResponse() {
       wireguardConnectedPeersCount++;
     }
 
-    const id = `interface="${wgInterface.name}",enabled="${client.enabled}",ipv4Address="${client.ipv4Address}",ipv6Address="${client.ipv6Address}",name="${client.name}"`;
+    const id = formatPrometheusLabels({
+      interface: wgInterface.name,
+      enabled: client.enabled,
+      ipv4Address: client.ipv4Address,
+      ipv6Address: client.ipv6Address,
+      name: client.name,
+    });
 
     wireguardSentBytes.push(
       `wireguard_sent_bytes{${id}} ${client.transferTx ?? 0}`
@@ -41,7 +48,7 @@ async function getPrometheusResponse() {
     );
   }
 
-  const id = `interface="${wgInterface.name}"`;
+  const id = formatPrometheusLabels({ interface: wgInterface.name });
 
   const returnText = [
     '# HELP wireguard_configured_peers',