JarSigner.java

/**
 * Copyright (c) Codice Foundation
 * <p>
 * This is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser
 * General Public License as published by the Free Software Foundation, either version 3 of the
 * License, or any later version.
 * <p>
 * This program 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. A copy of the GNU Lesser General Public License
 * is distributed along with this program and can be found at
 * <http://www.gnu.org/licenses/lgpl.html>.
 */
package org.codice.ddf.catalog.transformer.zip;

import java.io.File;

import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.Target;
import org.apache.tools.ant.taskdefs.SignJar;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * This class extends Ant's SignJar class.  SignJar executes the jarsigner binary that exists in JDK
 * in code.
 * https://ant.apache.org/manual/Tasks/signjar.html
 */
public class JarSigner extends SignJar {

    private static final Logger LOGGER = LoggerFactory.getLogger(JarSigner.class);

    private static final String SIGN_JAR = "signJar";

    public JarSigner() {
        setProject(new Project());
        getProject().init();
        setTaskType(SIGN_JAR);
        setTaskName(SIGN_JAR);
        setOwningTarget(new Target());
    }

    /**
     * Signs the given jar with the given parameters.  Gives up if any exception occurs during the
     * execution.
     *
     * @param jarToSign - a reference to the zip / jar to sign
     * @param alias - the alias to sign the zip / jar under
     * @param keypass - the password for the private key
     * @param keystore - the path to the keystore
     * @param storepass - the password for the keystore
     */
    public void signJar(File jarToSign, String alias, String keypass, String keystore, String storepass) {
        setJar(jarToSign);
        setAlias(alias);
        setKeypass(keypass);
        setKeystore(keystore);
        setStorepass(storepass);
        setSignedjar(jarToSign);
        try {
            execute();
        } catch (BuildException e) {
            LOGGER.warn("Unable to sign {}", jarToSign.getName(), e);
        }
    }
}