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Java example source code file (XMLDSigWithSecMgr.java)

This example Java source code file (XMLDSigWithSecMgr.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

arraylist, dom, domsigncontext, domvalidatecontext, element, envelope, exception, failed, network, parser, printstream, security, serversocket, thread, transformparameterspec, uriparameter, util, xml, xmldsigwithsecmgr, xmlsignaturefactory

The XMLDSigWithSecMgr.java Java example source code

/*
 * Copyright (c) 2006, 2013, Oracle and/or its affiliates. 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.
 *
 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/**
 * @test
 * @bug 6436919 6460930
 * @summary check that XML Signatures can be generated and validated with
 *  SecurityManager enabled and default policy
 * @run main/othervm XMLDSigWithSecMgr
 * @author Sean Mullan
 */
import java.io.*;
import java.net.*;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.Policy;
import java.security.URIParameter;
import java.util.ArrayList;
import java.util.Collections;
import javax.xml.crypto.dsig.*;
import javax.xml.crypto.dsig.dom.DOMSignContext;
import javax.xml.crypto.dsig.dom.DOMValidateContext;
import javax.xml.crypto.dsig.spec.C14NMethodParameterSpec;
import javax.xml.crypto.dsig.spec.TransformParameterSpec;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class XMLDSigWithSecMgr implements Runnable {

    private XMLSignatureFactory fac;
    private DigestMethod sha1;
    private CanonicalizationMethod withoutComments;
    private DocumentBuilder db;

    private ServerSocket ss;

    private void setup() throws Exception {
        ss = new ServerSocket(0);
        Thread thr = new Thread(this);
        thr.start();

        fac = XMLSignatureFactory.getInstance();
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        dbf.setNamespaceAware(true);
        db = dbf.newDocumentBuilder();
        sha1 = fac.newDigestMethod(DigestMethod.SHA1, null);
        withoutComments = fac.newCanonicalizationMethod
            (CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec)null);
    }

    public void run() {
        try {

        for (int i=0; i<2; i++) {
            Socket s = ss.accept();
            s.setTcpNoDelay(true);

            PrintStream out = new PrintStream(
                                 new BufferedOutputStream(
                                    s.getOutputStream() ));

            out.print("HTTP/1.1 200 OK\r\n");
            out.print("Content-Length: 11\r\n");
            out.print("Content-Type: text/plain\r\n");
            out.print("\r\n");
            out.print("l;ajfdjafd\n");
            out.flush();

            // don't close the connection immediately as otherwise
            // the http headers may not have been received and the
            // http client will re-connect.
            Thread.currentThread().sleep(2000);

            s.close();
        }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    XMLDSigWithSecMgr() throws Exception {
        setup();
        Document doc = db.newDocument();
        Element envelope = doc.createElementNS
            ("http://example.org/envelope", "Envelope");
        envelope.setAttributeNS("http://www.w3.org/2000/xmlns/",
            "xmlns", "http://example.org/envelope");
        doc.appendChild(envelope);

        KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
        KeyPair kp = kpg.genKeyPair();

        // the policy only grants this test SocketPermission to accept, resolve
        // and connect to localhost so that it can dereference 2nd reference
        URI policyURI =
            new File(System.getProperty("test.src", "."), "policy").toURI();
        Policy.setPolicy
            (Policy.getInstance("JavaPolicy", new URIParameter(policyURI)));
        System.setSecurityManager(new SecurityManager());

        try {
            // generate a signature with SecurityManager enabled
            ArrayList refs = new ArrayList();
            refs.add(fac.newReference
                ("", sha1,
                 Collections.singletonList
                    (fac.newTransform(Transform.ENVELOPED,
                     (TransformParameterSpec) null)), null, null));
            refs.add(fac.newReference("http://localhost:" + ss.getLocalPort()
                + "/anything.txt", sha1));
            SignedInfo si = fac.newSignedInfo(withoutComments,
                fac.newSignatureMethod(SignatureMethod.RSA_SHA1, null), refs);
            XMLSignature sig = fac.newXMLSignature(si, null);
            DOMSignContext dsc = new DOMSignContext(kp.getPrivate(), envelope);
            sig.sign(dsc);

            // validate a signature with SecurityManager enabled
            DOMValidateContext dvc = new DOMValidateContext
                (kp.getPublic(), envelope.getFirstChild());

            // disable secure validation mode so that http reference will work
            dvc.setProperty("org.jcp.xml.dsig.secureValidation", Boolean.FALSE);

            sig = fac.unmarshalXMLSignature(dvc);
            if (!sig.validate(dvc)) {
                throw new Exception
                    ("XMLDSigWithSecMgr signature validation FAILED");
            }
        } catch (SecurityException se) {
            throw new Exception("XMLDSigWithSecMgr FAILED", se);
        }
        ss.close();
    }

    public static void main(String[] args) throws Exception {
        new XMLDSigWithSecMgr();
    }
}

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