com.kylinolap.rest.security.PasswordPlaceholderConfigurer.java Source code

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Here is the source code for com.kylinolap.rest.security.PasswordPlaceholderConfigurer.java

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/*
 * Copyright 2013-2014 eBay Software Foundation
 *
 * 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 com.kylinolap.rest.security;

import java.util.Properties;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.binary.Base64;
import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
import org.springframework.core.io.InputStreamResource;
import org.springframework.core.io.Resource;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

import com.kylinolap.common.KylinConfig;

/**
 * @author xduo
 * 
 */
public class PasswordPlaceholderConfigurer extends PropertyPlaceholderConfigurer {

    private static byte[] key = { 0x74, 0x68, 0x69, 0x73, 0x49, 0x73, 0x41, 0x53, 0x65, 0x63, 0x72, 0x65, 0x74,
            0x4b, 0x65, 0x79 };

    public PasswordPlaceholderConfigurer() {
        Resource[] resources = new Resource[1];
        resources[0] = new InputStreamResource(KylinConfig.getKylinPropertiesAsInputSteam());
        this.setLocations(resources);
    }

    public static String encrypt(String strToEncrypt) {
        try {
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
            final SecretKeySpec secretKey = new SecretKeySpec(key, "AES");
            cipher.init(Cipher.ENCRYPT_MODE, secretKey);
            final String encryptedString = Base64.encodeBase64String(cipher.doFinal(strToEncrypt.getBytes()));
            return encryptedString;
        } catch (Exception e) {
        }
        return null;

    }

    public static String decrypt(String strToDecrypt) {
        try {
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5PADDING");
            final SecretKeySpec secretKey = new SecretKeySpec(key, "AES");
            cipher.init(Cipher.DECRYPT_MODE, secretKey);
            final String decryptedString = new String(cipher.doFinal(Base64.decodeBase64(strToDecrypt)));
            return decryptedString;
        } catch (Exception e) {
        }
        return null;
    }

    protected String resolvePlaceholder(String placeholder, Properties props) {
        if (placeholder.toLowerCase().contains("password")) {
            return decrypt(props.getProperty(placeholder));
        } else {
            return props.getProperty(placeholder);
        }
    }

    public static void main(String[] args) {
        BCryptPasswordEncoder bCryptPasswordEncoder = new BCryptPasswordEncoder();
        System.out.println(bCryptPasswordEncoder.encode("MODELER"));
    }
}