Update redirect service (#10116)

bskylink/src/metrics.ts

@@ -11,6 +11,11 @@ type Events = {
     whitelisted: 'unknown' | 'yes'
     blocked: boolean
     warned: boolean
+    utm_source?: string
+    utm_medium?: string
+    utm_campaign?: string
+    utm_content?: string
+    utm_term?: string
   }
   invalid_redirect: {
     link: string

bskylink/src/routes/redirect.ts

@@ -101,6 +101,11 @@ export default function (ctx: AppContext, app: Express) {
         whitelisted,
         blocked,
         warned,
+        utm_source: req.query.utm_source?.toString(),
+        utm_medium: req.query.utm_medium?.toString(),
+        utm_campaign: req.query.utm_campaign?.toString(),
+        utm_content: req.query.utm_content?.toString(),
+        utm_term: req.query.utm_term?.toString(),
       })
 
       return res.end(html)