Check the certificate expiration date

Author: MatteoPologruto

certificates/certificates.go

@@ -267,3 +267,14 @@ func DeleteCertificates(certDir *paths.Path) {
 	certDir.Join("cert.pem").Remove()
 	certDir.Join("cert.cer").Remove()
 }
+
+// IsExpired checks if a certificate is expired
+func IsExpired(cert []byte) bool {
+	pCert, err := x509.ParseCertificate(cert)
+	if err != nil {
+		log.Error(err.Error())
+		os.Exit(1)
+	}
+	// we could add an offset
+	return pCert.NotAfter.Before(time.Now())
+}