/**
* 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.camel.component.gae.auth;
import java.io.InputStream;
import java.security.KeyStore;
import java.security.KeyStore.PasswordProtection;
import java.security.KeyStore.PrivateKeyEntry;
import java.security.PrivateKey;
import org.springframework.core.io.Resource;
/**
* A Java keystore specific key loader.
*/
public class GAuthJksLoader implements GAuthKeyLoader {
private Resource keyStoreLocation;
private String storePass;
private String keyPass;
private String keyAlias;
public GAuthJksLoader() {
this(null, null, null, null);
}
public GAuthJksLoader(Resource keyStoreLocation, String storePass, String keyPass, String keyAlias) {
this.keyStoreLocation = keyStoreLocation;
this.storePass = storePass;
this.keyPass = keyPass;
this.keyAlias = keyAlias;
}
/**
* Set the location of the Java keystore.
*
* @param keyStoreLocation
*/
public void setKeyStoreLocation(Resource keyStoreLocation) {
this.keyStoreLocation = keyStoreLocation;
}
/**
* Sets the password used to open the key store.
*
* @param storePass
*/
public void setStorePass(String storePass) {
this.storePass = storePass;
}
/**
* Sets the password used to get access to a specific key.
*
* @param keyPass
*/
public void setKeyPass(String keyPass) {
this.keyPass = keyPass;
}
/**
* Sets the alias of the key to be loaded.
*
* @param keyAlias
*/
public void setKeyAlias(String keyAlias) {
this.keyAlias = keyAlias;
}
/**
* Loads a private key from a Java keystore depending on this loader's
* properties.
*/
public PrivateKey loadPrivateKey() throws Exception {
InputStream input = keyStoreLocation.getInputStream();
try {
return loadPrivateKey(input);
} finally {
input.close();
}
}
private PrivateKey loadPrivateKey(InputStream input) throws Exception {
// Load keystore
KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
keystore.load(input, storePass.toCharArray());
// Retrieve private key
PrivateKeyEntry entry = (PrivateKeyEntry)keystore.getEntry(keyAlias, new PasswordProtection(keyPass.toCharArray()));
return entry.getPrivateKey();
}
}