/*************************************************************************
 *                                                                       *
 *  SignServer: The OpenSource Automated Signing Server                  *
 *                                                                       *
 *  This software 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 2.1 of the License, or any later version.                    *
 *                                                                       *
 *  See terms of license at gnu.org.                                     *
 *                                                                       *
 *************************************************************************/
package org.signserver.common;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.io.Serializable;
import java.security.cert.Certificate;
import java.security.cert.CertificateEncodingException;
import java.security.cert.CertificateException;
import java.util.ArrayList;

import org.ejbca.util.CertTools;

/**
 * Class used for the response of the signSession.signData method and contain information
 * specific to MRTD signing.
 *
 * @author Philip Vendil
 * @version $Id: MRTDSignResponse.java 1829 2011-08-10 11:50:45Z netmackan $
 */
public class MRTDSignResponse extends ProcessResponse {

    private static final long serialVersionUID = 1L;
    private int requestID = 0;
    private ArrayList<byte[]> signedData = null;
    private Certificate signerCertificate = null;

    /**
     * Default constructor used during serialization
     */
    public MRTDSignResponse() {
    }

    /**
     * Main Constuctor
     */
    public MRTDSignResponse(int requestID, ArrayList<byte[]> signedData, Certificate signerCertificate) {
        this.requestID = requestID;
        this.signedData = signedData;
        this.signerCertificate = signerCertificate;
    }

    /**
     * 
     * @see org.signserver.common.ProcessResponse#getRequestID()
     */
    public int getRequestID() {
        return requestID;
    }

    /**
     * Returns the signed data in an ArrayList class.
     * 
     * @return ArrayList of signed Hashes in byte[] format
     */
    public Serializable getProcessedData() {
        return signedData;
    }

    /**
     * Returns the certificate of the signer.
     * 
     * @return the X509Certificate that was used for the signing.
     */
    public Certificate getSignerCertificate() {
        return signerCertificate;
    }

    /**
     * Not supported, always returns null.
     */
    public ArchiveData getArchiveData() {
        return null;
    }

    /**
     * Not supported, always returns null.
     */
    public String getArchiveId() {
        return null;
    }

    public void parse(DataInput in) throws IOException {
        in.readInt();
        this.requestID = in.readInt();
        int arraySize = in.readInt();
        this.signedData = new ArrayList<byte[]>();
        for (int i = 0; i < arraySize; i++) {
            int dataSize = in.readInt();
            byte[] data = new byte[dataSize];
            in.readFully(data);
            signedData.add(data);
        }
        int certSize = in.readInt();
        byte[] certData = new byte[certSize];
        in.readFully(certData);
        try {
            this.signerCertificate = CertTools.getCertfromByteArray(certData);
        } catch (CertificateException e) {
            try {
                throw new IOException(e.getMessage()).initCause(e);
            } catch (Throwable e1) {
                throw new IOException(e.getMessage());
            }
        }
    }

    public void serialize(DataOutput out) throws IOException {
        out.writeInt(RequestAndResponseManager.RESPONSETYPE_MRTDSIGNRESPONSE);
        out.writeInt(this.requestID);
        out.writeInt(this.signedData.size());
        for (byte[] data : signedData) {
            out.writeInt(data.length);
            out.write(data);
        }
        try {
            byte[] certData = this.signerCertificate.getEncoded();
            out.writeInt(certData.length);
            out.write(certData);
        } catch (CertificateEncodingException e) {
            try {
                throw new IOException(e.getMessage()).initCause(e);
            } catch (Throwable e1) {
                throw new IOException(e.getMessage());
            }
        }
    }
}