/*

 * Copyright 2003-2004 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package sun.security.pkcs;

import java.io.IOException;

import java.util.ArrayList;

import sun.misc.HexDumpEncoder;

import sun.security.util.DerInputStream;

import sun.security.util.DerValue;

import sun.security.x509.GeneralNames;

import sun.security.x509.SerialNumber;

/**

 * This class represents a signing certificate attribute.

 * Its attribute value is defined by the following ASN.1 definition.

 * <pre>

 *

 *   id-aa-signingCertificate OBJECT IDENTIFIER ::= { iso(1)

 *     member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9)

 *     smime(16) id-aa(2) 12 }

 *

 *   SigningCertificate ::=  SEQUENCE {

 *       certs       SEQUENCE OF ESSCertID,

 *       policies    SEQUENCE OF PolicyInformation OPTIONAL

 *   }

 *

 *   ESSCertID ::=  SEQUENCE {

 *       certHash        Hash,

 *       issuerSerial    IssuerSerial OPTIONAL

 *   }

 *

 *   Hash ::= OCTET STRING -- SHA1 hash of entire certificate

 *

 *   IssuerSerial ::= SEQUENCE {

 *       issuer         GeneralNames,

 *       serialNumber   CertificateSerialNumber

 *   }

 *

 *   PolicyInformation ::= SEQUENCE {

 *       policyIdentifier   CertPolicyId,

 *       policyQualifiers   SEQUENCE SIZE (1..MAX) OF

 *               PolicyQualifierInfo OPTIONAL }

 *

 *   CertPolicyId ::= OBJECT IDENTIFIER

 *

 *   PolicyQualifierInfo ::= SEQUENCE {

 *       policyQualifierId  PolicyQualifierId,

 *       qualifier        ANY DEFINED BY policyQualifierId }

 *

 *   -- Implementations that recognize additional policy qualifiers MUST

 *   -- augment the following definition for PolicyQualifierId

 *

 *   PolicyQualifierId ::= OBJECT IDENTIFIER ( id-qt-cps | id-qt-unotice )

 *

 * </pre>

 *

 * @since 1.5

 * @author Vincent Ryan

 */

public class SigningCertificateInfo {

    private byte[] ber = null;

    private ESSCertId[] certId = null;

    public SigningCertificateInfo(byte[] ber) throws IOException {

        parse(ber);

    }

    public String toString() {

        StringBuffer buffer = new StringBuffer();

        buffer.append("[\n");

        for (int i = 0; i < certId.length; i++) {

            buffer.append(certId[i].toString());

        }

        // format policies as a string

        buffer.append("\n]");

        return buffer.toString();

    }

    public void parse(byte[] bytes) throws IOException {

        // Parse signingCertificate

        DerValue derValue = new DerValue(bytes);

        if (derValue.tag != DerValue.tag_Sequence) {

            throw new IOException("Bad encoding for signingCertificate");

        }

        // Parse certs

        DerValue[] certs = derValue.data.getSequence(1);

        certId = new ESSCertId[certs.length];

        for (int i = 0; i < certs.length; i++) {

            certId[i] = new ESSCertId(certs[i]);

        }

        // Parse policies, if present

        if (derValue.data.available() > 0) {

            DerValue[] policies = derValue.data.getSequence(1);

            for (int i = 0; i < policies.length; i++) {

                // parse PolicyInformation

            }

        }

    }

}

class ESSCertId {

    private static volatile HexDumpEncoder hexDumper;

    private byte[] certHash;

    private GeneralNames issuer;

    private SerialNumber serialNumber;

    ESSCertId(DerValue certId) throws IOException {

        // Parse certHash

        certHash = certId.data.getDerValue().toByteArray();

        // Parse issuerSerial, if present

        if (certId.data.available() > 0) {

            DerValue issuerSerial = certId.data.getDerValue();

            // Parse issuer

            issuer = new GeneralNames(issuerSerial.data.getDerValue());

            // Parse serialNumber

            serialNumber = new SerialNumber(issuerSerial.data.getDerValue());

        }

    }

    public String toString() {

        StringBuffer buffer = new StringBuffer();

        buffer.append("[\n\tCertificate hash (SHA-1):\n");

        if (hexDumper == null) {

            hexDumper = new HexDumpEncoder();

        }

        buffer.append(hexDumper.encode(certHash));

        if (issuer != null && serialNumber != null) {

            buffer.append("\n\tIssuer: " + issuer + "\n");

            buffer.append("\t" + serialNumber);

        }

        buffer.append("\n]");

        return buffer.toString();

    }

}