Merge pull request #57 from xenolf/fix-san-renewal

Fix: renew dropping additional DNSNames

acme/client.go

@@ -368,7 +368,24 @@ func (c *Client) RenewCertificate(cert CertificateResource, revokeOld bool, bund
 		return cert, nil
 	}
 
-	newCerts, failures := c.ObtainCertificates([]string{cert.Domain}, bundle)
+	var domains []string
+	newCerts := make([]CertificateResource, 1)
+	var failures map[string]error
+	// check for SAN certificate
+	if len(x509Cert.DNSNames) > 1 {
+		domains = append(domains, x509Cert.Subject.CommonName)
+		for _, sanDomain := range x509Cert.DNSNames {
+			if sanDomain == x509Cert.Subject.CommonName {
+				continue
+			}
+			domains = append(domains, sanDomain)
+		}
+		newCerts[0], failures = c.ObtainSANCertificate(domains, bundle)
+	} else {
+		domains = append(domains, x509Cert.Subject.CommonName)
+		newCerts, failures = c.ObtainCertificates(domains, bundle)
+	}
+
 	if len(failures) > 0 {
 		return CertificateResource{}, failures[cert.Domain]
 	}

cli_handlers.go

@@ -173,7 +173,12 @@ func revoke(c *cli.Context) {
 func renew(c *cli.Context) {
 	conf, _, client := setup(c)
 	
-	for _, domain := range c.GlobalStringSlice("domains") {
+	if len(c.GlobalStringSlice("domains")) <= 0 {
+		logger().Fatal("Please specify at least one domain.")
+	}
+	
+	domain := c.GlobalStringSlice("domains")[0]
+
 	// load the cert resource from files.
 	// We store the certificate, private key and metadata in different files
 	// as web servers would not be able to work with a combined file.
@@ -192,8 +197,8 @@ func renew(c *cli.Context) {
 			logger().Printf("Could not get Certification expiration for domain %s", domain)
 		}
 
-			if int(expTime.Sub(time.Now()).Hours()/24.0) <= c.Int("days") {
-				continue
+		if int(expTime.Sub(time.Now()).Hours() / 24.0) <= c.Int("days") {
+			return
 		}
 	}
 
@@ -222,5 +227,4 @@ func renew(c *cli.Context) {
 	}
 
 	saveCertRes(newCert, conf)
-	}
 }