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/*
* $Id: OcspClientBouncyCastle.java 4065 2009-09-16 23:09:11Z psoares33 $
*
* Copyright 2009 Paulo Soares
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999-2005 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2009 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library 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 Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* https://github.com/LibrePDF/OpenPDF
*/
package com.lowagie.text.pdf;
/*
* $Id: OcspClientBouncyCastle.java 4065 2009-09-16 23:09:11Z psoares33 $
*
* Copyright 2009 Paulo Soares
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999-2005 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2009 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library 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 Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* https://github.com/LibrePDF/OpenPDF
*/
import java.io.BufferedOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.math.BigInteger;
import java.net.HttpURLConnection;
import java.net.Proxy;
import java.net.URL;
import java.security.Provider;
import java.security.Security;
import java.security.cert.CertificateEncodingException;
import java.security.cert.X509Certificate;
import java.util.Random;
import com.lowagie.text.ExceptionConverter;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.ocsp.OCSPObjectIdentifiers;
import org.bouncycastle.asn1.x509.ExtensionsGenerator;
import org.bouncycastle.cert.jcajce.JcaX509CertificateHolder;
import org.bouncycastle.cert.ocsp.BasicOCSPResp;
import org.bouncycastle.cert.ocsp.CertificateID;
import org.bouncycastle.cert.ocsp.OCSPException;
import org.bouncycastle.cert.ocsp.OCSPReq;
import org.bouncycastle.cert.ocsp.OCSPReqBuilder;
import org.bouncycastle.cert.ocsp.OCSPResp;
import org.bouncycastle.cert.ocsp.SingleResp;
import org.bouncycastle.operator.DigestCalculatorProvider;
import org.bouncycastle.operator.OperatorCreationException;
import org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder;
import com.lowagie.text.error_messages.MessageLocalization;
/**
* OcspClient implementation using BouncyCastle.
*
* @author psoares
* @since 2.1.6
*/
public class OcspClientBouncyCastle implements OcspClient {
/** root certificate */
private final X509Certificate rootCert;
/** check certificate */
private final X509Certificate checkCert;
/** OCSP URL */
private final String url;
/** HTTP proxy used to access the OCSP URL */
private Proxy proxy;
/**
* Creates an instance of an OcspClient that will be using BouncyCastle.
*
* @param checkCert
* the check certificate
* @param rootCert
* the root certificate
* @param url
* the OCSP URL
*/
public OcspClientBouncyCastle(X509Certificate checkCert,
X509Certificate rootCert, String url) {
this.checkCert = checkCert;
this.rootCert = rootCert;
this.url = url;
}
/**
* Generates an OCSP request using BouncyCastle.
*
* @param issuerCert
* certificate of the issues
* @param serialNumber
* serial number
* @return an OCSP request
* @throws OCSPException
* @throws IOException
*/
private static OCSPReq generateOCSPRequest(X509Certificate issuerCert,
BigInteger serialNumber) throws OCSPException, IOException,
OperatorCreationException, CertificateEncodingException {
// Add provider BC
Provider prov = new org.bouncycastle.jce.provider.BouncyCastleProvider();
Security.addProvider(prov);
// Generate the id for the certificate we are looking for
// OJO... Modificacion de
// Felix--------------------------------------------------
// CertificateID id = new CertificateID(CertificateID.HASH_SHA1, issuerCert,
// serialNumber);
// Example from
// http://grepcode.com/file/repo1.maven.org/maven2/org.bouncycastle/bcmail-jdk16/1.46/org/bouncycastle/cert/ocsp/test/OCSPTest.java
DigestCalculatorProvider digCalcProv = new JcaDigestCalculatorProviderBuilder()
.setProvider(prov).build();
CertificateID id = new CertificateID(
digCalcProv.get(CertificateID.HASH_SHA1), new JcaX509CertificateHolder(
issuerCert), serialNumber);
// basic request generation with nonce
OCSPReqBuilder gen = new OCSPReqBuilder();
gen.addRequest(id);
// create details for nonce extension
// Vector oids = new Vector();
// Vector values = new Vector();
// oids.add(OCSPObjectIdentifiers.id_pkix_ocsp_nonce);
// values.add(new X509Extension(false, new DEROctetString(new
// DEROctetString(PdfEncryption.createDocumentId()).getEncoded())));
// gen.setRequestExtensions(new X509Extensions(oids, values));
// Add nonce extension
ExtensionsGenerator extGen = new ExtensionsGenerator();
byte[] nonce = new byte[16];
Random rand = new Random();
rand.nextBytes(nonce);
extGen.addExtension(OCSPObjectIdentifiers.id_pkix_ocsp_nonce, false,
new DEROctetString(nonce));
gen.setRequestExtensions(extGen.generate());
// Build request
return gen.build();
// ******************************************************************************
}
/**
* @return a byte array
* @see com.lowagie.text.pdf.OcspClient
*/
@Override
public byte[] getEncoded() {
try {
OCSPReq request = generateOCSPRequest(rootCert,
checkCert.getSerialNumber());
byte[] array = request.getEncoded();
URL urlt = new URL(url);
Proxy tmpProxy = proxy == null ? Proxy.NO_PROXY : proxy;
HttpURLConnection con = (HttpURLConnection) urlt.openConnection(tmpProxy);
con.setRequestProperty("Content-Type", "application/ocsp-request");
con.setRequestProperty("Accept", "application/ocsp-response");
con.setDoOutput(true);
OutputStream out = con.getOutputStream();
DataOutputStream dataOut = new DataOutputStream(new BufferedOutputStream(
out));
dataOut.write(array);
dataOut.flush();
dataOut.close();
if (con.getResponseCode() / 100 != 2) {
throw new IOException(MessageLocalization.getComposedMessage(
"invalid.http.response.1", con.getResponseCode()));
}
// Get Response
InputStream in = (InputStream) con.getContent();
OCSPResp ocspResponse = new OCSPResp(in);
if (ocspResponse.getStatus() != 0)
throw new IOException(MessageLocalization.getComposedMessage(
"invalid.status.1", ocspResponse.getStatus()));
BasicOCSPResp basicResponse = (BasicOCSPResp) ocspResponse
.getResponseObject();
if (basicResponse != null) {
SingleResp[] responses = basicResponse.getResponses();
if (responses.length == 1) {
SingleResp resp = responses[0];
Object status = resp.getCertStatus();
if (status == null) {
return basicResponse.getEncoded();
} else if (status instanceof org.bouncycastle.cert.ocsp.RevokedStatus) {
throw new IOException(
MessageLocalization
.getComposedMessage("ocsp.status.is.revoked"));
} else {
throw new IOException(
MessageLocalization
.getComposedMessage("ocsp.status.is.unknown"));
}
}
}
} catch (Exception ex) {
throw new ExceptionConverter(ex);
}
return null;
}
/**
* Sets Proxy which will be used for URL connection.
* @param aProxy Proxy to set
*/
public void setProxy(final Proxy aProxy) {
this.proxy = aProxy;
}
/**
* Returns Proxy object used for URL connections.
* @return configured proxy
*/
public Proxy getProxy() {
return proxy;
}
}
