/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.synapse.securevault.keystore;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.securevault.IKeyStoreLoader;
import org.apache.synapse.securevault.SecureVaultException;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.cert.CertificateException;
/**
* Provides the base for loading KeyStores
*/
public abstract class AbstractKeyStoreLoader implements IKeyStoreLoader {
protected Log log;
protected AbstractKeyStoreLoader() {
log = LogFactory.getLog(this.getClass());
}
/**
* Constructs a KeyStore based on keystore location , keystore password , keystore type and
* provider
*
* @param location The location of the KeyStore
* @param storePassword Password to unlock KeyStore
* @param storeType KeyStore type
* @param provider Provider
* @return KeyStore Instance
*/
protected KeyStore getKeyStore(String location, String storePassword,
String storeType,
String provider) {
File keyStoreFile = new File(location);
if (!keyStoreFile.exists()) {
handleException("KeyStore can not be found at ' " + keyStoreFile + " '");
}
BufferedInputStream bis = null;
try {
if (log.isDebugEnabled()) {
log.debug("Loading KeyStore from : " + location + " Store-Type : " +
storeType + " Provider : " + provider);
}
bis = new BufferedInputStream(new FileInputStream(keyStoreFile));
KeyStore keyStore;
if (provider != null) {
keyStore = KeyStore.getInstance(storeType, provider);
} else {
keyStore = KeyStore.getInstance(storeType);
}
keyStore.load(bis, storePassword.toCharArray());
return keyStore;
} catch (KeyStoreException e) {
handleException("Error loading keyStore from ' " + location + " ' ", e);
} catch (IOException e) {
handleException("IOError loading keyStore from ' " + location + " ' ", e);
} catch (NoSuchAlgorithmException e) {
handleException("Error loading keyStore from ' " + location + " ' ", e);
} catch (CertificateException e) {
handleException("Error loading keyStore from ' " + location + " ' ", e);
} catch (NoSuchProviderException e) {
handleException("Error loading keyStore from ' " + location + " ' ", e);
} finally {
if (bis != null) {
try {
bis.close();
} catch (IOException ignored) {
}
}
}
return null;
}
protected void handleException(String msg, Exception e) {
log.error(msg, e);
throw new SecureVaultException(msg, e);
}
protected void handleException(String msg) {
log.error(msg);
throw new SecureVaultException(msg);
}
}