Adding quotes around client cert CNs and escaping special characters.

mramezani95 · mramezani95 · commit 9a1314513bb1 · 2026-05-29T20:41:12.000Z
Signed-off-by: Mahdi Ramezani &lt;mramezani@microsoft.com&gt;
diff --git a/go-server-server/go/auth.go b/go-server-server/go/auth.go
@@ -4,6 +4,7 @@ import (
 	"log"
 	"net/http"
 	"strings"
+	"strconv"
 )
 
 func CommonNameMatch(r *http.Request) bool {
@@ -44,7 +45,7 @@ func CommonNameMatch(r *http.Request) bool {
 
 	commonNames := make([]string, 0)
 	for _, peercert := range r.TLS.PeerCertificates {
-		commonNames = append(commonNames, peercert.Subject.CommonName)
+		commonNames = append(commonNames, strconv.Quote(peercert.Subject.CommonName))
 	}
 	log.Printf("error: Authentication Failed! None of the common names in the client cert chain" +
 			   " matched any of the trusted common names. Client cert common names: %v", commonNames)

Original file line number	Diff line number	Diff line change
`@@ -4,6 +4,7 @@ import (`
`4`	`4`	`"log"`
`5`	`5`	`"net/http"`
`6`	`6`	`"strings"`
	`7`	`+ "strconv"`
`7`	`8`	`)`
`8`	`9`
`9`	`10`	`func CommonNameMatch(r *http.Request) bool {`
`@@ -44,7 +45,7 @@ func CommonNameMatch(r *http.Request) bool {`
`44`	`45`
`45`	`46`	`commonNames := make([]string, 0)`
`46`	`47`	`for _, peercert := range r.TLS.PeerCertificates {`
`47`		`- commonNames = append(commonNames, peercert.Subject.CommonName)`
	`48`	`+ commonNames = append(commonNames, strconv.Quote(peercert.Subject.CommonName))`
`48`	`49`	`}`
`49`	`50`	`log.Printf("error: Authentication Failed! None of the common names in the client cert chain" +`
`50`	`51`	`" matched any of the trusted common names. Client cert common names: %v", commonNames)`