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/* 
 * This file is part of cert-signer
 * Copyright (c) 2024 Paolo Lulli.
 * 
 * This program 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, version 3.
 *
 * 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 
 * 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 net.lulli.certsigner.util;

import org.bouncycastle.pkcs.PKCS10CertificationRequest;
import org.bouncycastle.util.io.pem.PemObject;
import org.bouncycastle.util.io.pem.PemWriter;

import java.io.StringWriter;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;

public class PemUtil {
    private PemUtil(){}
    public static String toString(PKCS10CertificationRequest csr) {
        try {
            var pemObject = new PemObject("CERTIFICATE REQUEST", csr.getEncoded());
            var str = new StringWriter();
            var pemWriter = new PemWriter(str);
            pemWriter.writeObject(pemObject);
            pemWriter.close();
            str.close();
            return str.toString();
        } catch (Exception e) {
            throw new IllegalStateException(e.getMessage());
        }
    }

    public static String toString(PrivateKey privateKey) {
        try {
            var pemObject = new PemObject("RSA PRIVATE KEY", privateKey.getEncoded());
            var str = new StringWriter();
            var pemWriter = new PemWriter(str);
            pemWriter.writeObject(pemObject);
            pemWriter.close();
            str.close();
            return str.toString();
        } catch (Exception e) {
            throw new IllegalStateException(e.getMessage());
        }
    }

    public static String toString(X509Certificate x509Certificate) {
        try {
            var pemObject = new PemObject("CERTIFICATE", x509Certificate.getEncoded());
            var str = new StringWriter();
            var pemWriter = new PemWriter(str);
            pemWriter.writeObject(pemObject);
            pemWriter.close();
            str.close();
            return str.toString();
        } catch (Exception e) {
            throw new IllegalStateException(e.getMessage());
        }
    }
}