first commit

internal/tls/tls_web.go

@@ -0,0 +1,99 @@
+/*
+© Copyright IBM Corporation 2019, 2023
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+package tls
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/ibm-messaging/mq-container/internal/keystore"
+	"github.com/ibm-messaging/mq-container/internal/mqtemplate"
+	"github.com/ibm-messaging/mq-container/internal/pathutils"
+	"github.com/ibm-messaging/mq-container/internal/securityutility"
+	"github.com/ibm-messaging/mq-container/pkg/logger"
+)
+
+// webKeystoreDefault is the name of the default web server Keystore
+const webKeystoreDefault = "default.p12"
+
+// ConfigureWebTLS configures TLS for the web server
+func ConfigureWebTLS(keyLabel string, log *logger.Logger, password string) error {
+
+	// Return immediately if we have no certificate to use as identity
+	if keyLabel == "" && os.Getenv("MQ_GENERATE_CERTIFICATE_HOSTNAME") == "" {
+		return nil
+	}
+
+	tlsConfigLink := "/run/tls.xml"
+	tlsConfigTemplate := "/etc/mqm/web/installations/Installation1/servers/mqweb/tls.xml.tpl"
+	encryptedPassword, err := securityutility.EncodeSecrets(password)
+	if err != nil {
+		log.Printf("Password encoding for Web Keystore failed with error %v", err)
+		// We couldn't encode the passwords so using an empty string as password
+		encryptedPassword = ""
+	}
+	// Password successfully encoded using securityUtility use the encoded password the template
+	templateErr := mqtemplate.ProcessTemplateFile(tlsConfigTemplate, tlsConfigLink, map[string]string{"password": encryptedPassword}, log)
+	if templateErr != nil {
+		return templateErr
+	}
+
+	return nil
+}
+
+// ConfigureWebKeyStore configures the Web Keystore
+func ConfigureWebKeystore(p12Truststore KeyStoreData, keyLabel string) (string, error) {
+
+	webKeystore := webKeystoreDefault
+	if keyLabel != "" {
+		webKeystore = keyLabel + ".p12"
+	}
+	webKeystoreFile := pathutils.CleanPath(keystoreDirDefault, webKeystore)
+
+	// Check if a new self-signed certificate should be generated
+	if keyLabel == "" {
+
+		// Get hostname to use for self-signed certificate
+		genHostName := os.Getenv("MQ_GENERATE_CERTIFICATE_HOSTNAME")
+
+		// Create the Web Keystore
+		newWebKeystore := keystore.NewPKCS12KeyStore(webKeystoreFile, p12Truststore.Password)
+		err := newWebKeystore.Create()
+		if err != nil {
+			return "", fmt.Errorf("failed to create Web Keystore %s: %v", webKeystoreFile, err)
+		}
+
+		// Generate a new self-signed certificate in the Web Keystore
+		err = newWebKeystore.CreateSelfSignedCertificate("default", fmt.Sprintf("CN=%s", genHostName), genHostName)
+		if err != nil {
+			return "", fmt.Errorf("failed to generate certificate in Web Keystore %s with DN of 'CN=%s': %v", webKeystoreFile, genHostName, err)
+		}
+	} else {
+		// Check Web Keystore already exists
+		_, err := os.Stat(webKeystoreFile)
+		if err != nil {
+			return "", fmt.Errorf("failed to find existing Web Keystore %s: %v", webKeystoreFile, err)
+		}
+	}
+
+	// Check Web Truststore already exists
+	_, err := os.Stat(p12Truststore.Keystore.Filename)
+	if err != nil {
+		return "", fmt.Errorf("failed to find existing Web Truststore %s: %v", p12Truststore.Keystore.Filename, err)
+	}
+
+	return webKeystore, nil
+}