/*
* This file is part of rockframework.
*
* rockframework is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* rockframework 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>;.
*/
package br.net.woodstock.rockframework.security.cert.util;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.security.GeneralSecurityException;
import java.security.PublicKey;
import java.security.SignatureException;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import br.net.woodstock.rockframework.core.util.Assert;
import br.net.woodstock.rockframework.security.cert.CertificateException;
import br.net.woodstock.rockframework.security.cert.CertificateType;
public abstract class Certificates {
private Certificates() {
//
}
public static Certificate get(final InputStream inputStream) {
return Certificates.get(inputStream, CertificateType.X509);
}
public static Certificate get(final InputStream inputStream, final CertificateType type) {
try {
Assert.notNull(inputStream, "inputStream");
Assert.notEmpty(type, "type");
CertificateFactory certFactory = CertificateFactory.getInstance(type.getType());
Certificate certificate = certFactory.generateCertificate(inputStream);
return certificate;
} catch (GeneralSecurityException e) {
throw new CertificateException(e);
}
}
public static Certificate get(final byte[] bytes) {
Assert.notEmpty(bytes, "bytes");
InputStream inputStream = new ByteArrayInputStream(bytes);
return Certificates.get(inputStream);
}
public static Certificate get(final byte[] bytes, final CertificateType type) {
Assert.notEmpty(bytes, "bytes");
Assert.notEmpty(type, "type");
InputStream inputStream = new ByteArrayInputStream(bytes);
return Certificates.get(inputStream, type);
}
public static boolean isSelfSigned(final Certificate certificate) throws GeneralSecurityException {
try {
PublicKey publicKey = certificate.getPublicKey();
certificate.verify(publicKey);
return true;
} catch (SignatureException e) {
return false;
}
}
}