com.springcryptoutils.core.keystore.Base64EncodedKeyStoreFactoryBean.java Source code

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Here is the source code for com.springcryptoutils.core.keystore.Base64EncodedKeyStoreFactoryBean.java

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/*
 * Copyright 2012 Mirko Caserta
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this software 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 com.springcryptoutils.core.keystore;

import java.io.ByteArrayInputStream;
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;

import org.apache.commons.codec.binary.Base64;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;

/**
 * A spring bean factory for instancing KeyStore objects from a base64 encoded
 * keystore file.
 *
 * @author Mirko Caserta (mirko.caserta@gmail.com)
 */
public class Base64EncodedKeyStoreFactoryBean implements FactoryBean, InitializingBean {

    private String base64EncodedKeyStoreFile;
    private String password;
    private String type = "JKS";
    private String provider;

    private KeyStore keystore;

    /**
     * Sets the BASE64 encoded version of the keystore file.
     *
     * @param base64EncodedKeyStoreFile
     *            the BASE64 encoded version of the keystore file
     */
    public void setBase64EncodedKeyStoreFile(String base64EncodedKeyStoreFile) {
        this.base64EncodedKeyStoreFile = base64EncodedKeyStoreFile;
    }

    /**
     * Sets the keystore password.
     *
     * @param password
     *            the keystore password
     */
    public void setPassword(String password) {
        this.password = password;
    }

    /**
     * Sets the keystore type (defaults to JKS).
     *
     * @param type
     *            the keystore type (defaults to JKS)
     */
    public void setType(String type) {
        this.type = type;
    }

    /**
     * Sets the provider name of the specific implementation requested (e.g.,
     * "BC" for BouncyCastle, "SunJCE" for the default Sun JCE provider).
     *
     * @param provider
     *            the provider to set
     */
    public void setProvider(String provider) {
        this.provider = provider;
    }

    public Object getObject() {
        return keystore;
    }

    public Class getObjectType() {
        return KeyStore.class;
    }

    public boolean isSingleton() {
        return true;
    }

    public void afterPropertiesSet() throws KeyStoreException, IOException, NoSuchAlgorithmException,
            NoSuchProviderException, CertificateException {
        if ((provider == null) || (provider.length() == 0)) {
            keystore = KeyStore.getInstance(type);
        } else {
            keystore = KeyStore.getInstance(type, provider);
        }
        ByteArrayInputStream in = new ByteArrayInputStream(
                Base64.decodeBase64(base64EncodedKeyStoreFile.getBytes()));
        keystore.load(in, password.toCharArray());
    }

}