add minor validation

ZetaoZhuang · ZetaoZhuang · commit 3f5155b7e66b · 2025-10-27T14:17:03.000-07:00
diff --git a/cns/service.go b/cns/service.go
@@ -163,7 +163,7 @@ func verifyPeerCertificate(verifiedChains [][]*x509.Certificate, clientSubjectNa
 		return nil
 	}
 
-	if len(verifiedChains) == 0 {
+	if len(verifiedChains) == 0 || len(verifiedChains[0]) == 0 {
 		return errors.New("no client certificate provided during mTLS")
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -163,7 +163,7 @@ func verifyPeerCertificate(verifiedChains [][]*x509.Certificate, clientSubjectNa`
`163`	`163`	`return nil`
`164`	`164`	`}`
`165`	`165`
`166`		`- if len(verifiedChains) == 0 {`
	`166`	`+ if len(verifiedChains) == 0 \|\| len(verifiedChains[0]) == 0 {`
`167`	`167`	`return errors.New("no client certificate provided during mTLS")`
`168`	`168`	`}`
`169`	`169`