feat: add tls debug info

Signed-off-by: QuentinN42 <quentin@lieumont.fr>

pkg/roundtrip/roudtrip.go

@@ -38,6 +38,7 @@ func HandleRequest(protoReq *proto.Request) *proto.Response {
 		logger.Debug("Url : %v", protoReq.Url)
 		dns(protoReq.Url)
 		traceroute(protoReq.Url)
+		tls(protoReq.Url)
 	}
 
 	logger.Debug("Sending request (%v)", protoReq.Correlation)

pkg/roundtrip/tls.go

@@ -0,0 +1,34 @@
+package roundtrip
+
+import (
+	"net/url"
+
+	cryptotls "crypto/tls"
+
+	"github.com/Escape-Technologies/repeater/pkg/logger"
+)
+
+func tls(input string) {
+	logger.Debug("TLS debug info")
+	u, err := url.Parse(input)
+	if err != nil {
+		logger.Error("ERROR parsing url : %v", err)
+		return
+	}
+	conf := &cryptotls.Config{
+		InsecureSkipVerify: true,
+	}
+
+	conn, err := cryptotls.Dial("tcp", u.Host, conf)
+	if err != nil {
+		logger.Error("Error in Dial %v", err)
+		return
+	}
+	defer conn.Close()
+	certs := conn.ConnectionState().PeerCertificates
+	for _, cert := range certs {
+		logger.Debug("Issuer Name: %s", cert.Issuer)
+		logger.Debug("Expiry: %s", cert.NotAfter.Format("2006-January-02"))
+		logger.Debug("Common Name: %s", cert.Issuer.CommonName)
+	}
+}