com.nesscomputing.syslog4j.impl.message.modifier.mac.MacSyslogMessageModifierConfig Maven / Gradle / Ivy

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Syslog4j provides client and server implementations of the BSD Syslog protocol (RFC 3164) and the structured syslog" protocol (RFC5424).
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/**
 *
 * (C) Copyright 2008-2011 syslog4j.org
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public License
 * (LGPL) version 2.1 which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl-2.1.html
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 */
package com.nesscomputing.syslog4j.impl.message.modifier.mac;

import java.security.Key;

import javax.crypto.spec.SecretKeySpec;

import com.nesscomputing.syslog4j.SyslogRuntimeException;
import com.nesscomputing.syslog4j.impl.message.modifier.AbstractSyslogMessageModifierConfig;
import com.nesscomputing.syslog4j.util.Base64;

/**
* MacSyslogMessageModifierConfig is an implementation of AbstractSyslogMessageModifierConfig
* that provides configuration for HashSyslogMessageModifier.
*
* Syslog4j is licensed under the Lesser GNU Public License v2.1.  A copy
* of the LGPL license is available in the META-INF folder in all
* distributions of Syslog4j and in the base directory of the "doc" ZIP.
*
* @author <[email protected]>
* @version $Id: MacSyslogMessageModifierConfig.java,v 1.3 2009/04/17 02:37:04 cvs Exp $
*/
public class MacSyslogMessageModifierConfig extends AbstractSyslogMessageModifierConfig {
    protected String macAlgorithm = null;
    protected String keyAlgorithm = null;
    protected Key key = null;

    public MacSyslogMessageModifierConfig(String macAlgorithm, String keyAlgorithm, Key key) {
        this.macAlgorithm = macAlgorithm;
        this.keyAlgorithm = keyAlgorithm;
        this.key = key;
    }

    public MacSyslogMessageModifierConfig(String macAlgorithm, String keyAlgorithm, byte[] keyBytes) {
        this.macAlgorithm = macAlgorithm;
        this.keyAlgorithm = keyAlgorithm;

        try {
            this.key = new SecretKeySpec(keyBytes,keyAlgorithm);

        } catch (IllegalArgumentException iae) {
            throw new SyslogRuntimeException(iae);
        }
    }

    public MacSyslogMessageModifierConfig(String macAlgorithm, String keyAlgorithm, String base64Key) {
        this.macAlgorithm = macAlgorithm;
        this.keyAlgorithm = keyAlgorithm;

        byte[] keyBytes = Base64.decode(base64Key);

        try {
            this.key = new SecretKeySpec(keyBytes,keyAlgorithm);

        } catch (IllegalArgumentException iae) {
            throw new SyslogRuntimeException(iae);
        }
    }

    public static MacSyslogMessageModifierConfig createHmacSHA1(Key key) {
        return new MacSyslogMessageModifierConfig("HmacSHA1","SHA1",key);
    }

    public static MacSyslogMessageModifierConfig createHmacSHA1(String base64Key) {
        return new MacSyslogMessageModifierConfig("HmacSHA1","SHA1",base64Key);
    }

    public static MacSyslogMessageModifierConfig createHmacSHA256(Key key) {
        return new MacSyslogMessageModifierConfig("HmacSHA256","SHA-256",key);
    }

    public static MacSyslogMessageModifierConfig createHmacSHA256(String base64Key) {
        return new MacSyslogMessageModifierConfig("HmacSHA256","SHA-256",base64Key);
    }

    public static MacSyslogMessageModifierConfig createHmacSHA512(Key key) {
        return new MacSyslogMessageModifierConfig("HmacSHA512","SHA-512",key);
    }

    public static MacSyslogMessageModifierConfig createHmacSHA512(String base64Key) {
        return new MacSyslogMessageModifierConfig("HmacSHA512","SHA-512",base64Key);
    }

    public static MacSyslogMessageModifierConfig createHmacMD5(Key key) {
        return new MacSyslogMessageModifierConfig("HmacMD5","MD5",key);
    }

    public static MacSyslogMessageModifierConfig createHmacMD5(String base64Key) {
        return new MacSyslogMessageModifierConfig("HmacMD5","MD5",base64Key);
    }

    public String getMacAlgorithm() {
        return this.macAlgorithm;
    }

    public String getKeyAlgorithm() {
        return this.keyAlgorithm;
    }

    public Key getKey() {
        return this.key;
    }

    public void setKey(Key key) {
        this.key = key;
    }
}