Application: gvSIG desktop » gvSIG scripting

package org.gvsig.scripting.app;

/*

 * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   - Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 *

 *   - Neither the name of Sun Microsystems nor the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

/**

 * Originally from:

 * http://blogs.sun.com/andreas/resource/InstallCert.java

 * Use:

 * java InstallCert hostname

 * Example:

 *% java InstallCert ecc.fedora.redhat.com

 */

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.security.KeyStore;

import java.security.MessageDigest;

import java.security.cert.CertificateException;

import java.security.cert.X509Certificate;

import javax.net.ssl.SSLContext;

import javax.net.ssl.SSLException;

import javax.net.ssl.SSLSocket;

import javax.net.ssl.SSLSocketFactory;

import javax.net.ssl.TrustManager;

import javax.net.ssl.TrustManagerFactory;

import javax.net.ssl.X509TrustManager;

/**

 * Class used to add the server's certificate to the KeyStore

 * with your trusted certificates.

 * 

 * NOTE: modified to install the certificate always into the main cacerts

 * keystore.

 */

public class InstallCert {

    public static void install(String host, Integer port, String passphrase) throws Exception {

        if( passphrase==null ) {

            passphrase = "changeit";

        }

        if( port == null || port <1) {

            port = 443;

        }

        main(

            new String[] {

                host +":"+port,

                passphrase

            }

        );

    }

    public static void main(String[] args) throws Exception {

        String host;

        int port;

        char[] passphrase;

        if ((args.length == 1) || (args.length == 2)) {

            String[] c = args[0].split(":");

            host = c[0];

            port = (c.length == 1) ? 443 : Integer.parseInt(c[1]);

            String p = (args.length == 1) ? "changeit" : args[1];

            passphrase = p.toCharArray();

        } else {

            System.out.println("Usage: java InstallCert [:port] [passphrase]");

            return;

        }

        File file = null;

        // File file = new File("jssecacerts");

        // if (file.isFile() == false) {

        char SEP = File.separatorChar;

        File dir =

            new File(System.getProperty("java.home") + SEP + "lib" + SEP

                + "security");

        // file = new File(dir, "jssecacerts");

        // if (file.isFile() == false) {

                file = new File(dir, "cacerts");

        if (!file.canWrite()) {

            System.err

                .println("Unable to write in the file "

                    + file

                + ".\nRun InstallCert as an administrator or a user with "

                + "privileges to write in the cacerts file");

            System.exit(-1);

        }

        // }

        // }

        System.out.println("Loading KeyStore " + file + "...");

        InputStream in = new FileInputStream(file);

        KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());

        ks.load(in, passphrase);

        in.close();

        SSLContext context = SSLContext.getInstance("TLS");

        TrustManagerFactory tmf =

            TrustManagerFactory.getInstance(TrustManagerFactory

                .getDefaultAlgorithm());

        tmf.init(ks);

        X509TrustManager defaultTrustManager =

            (X509TrustManager) tmf.getTrustManagers()[0];

        SavingTrustManager tm = new SavingTrustManager(defaultTrustManager);

        context.init(null, new TrustManager[] { tm }, null);

        SSLSocketFactory factory = context.getSocketFactory();

        System.out

            .println("Opening connection to " + host + ":" + port + "...");

        SSLSocket socket = (SSLSocket) factory.createSocket(host, port);

        socket.setSoTimeout(10000);

        try {

            System.out.println("Starting SSL handshake...");

            socket.startHandshake();

            socket.close();

            System.out.println();

            System.out.println("No errors, certificate is already trusted");

        } catch (SSLException e) {

            System.out.println();

            e.printStackTrace(System.out);

        }

        X509Certificate[] chain = tm.chain;

        if (chain == null) {

            System.out.println("Could not obtain server certificate chain");

            return;

        }

        BufferedReader reader =

            new BufferedReader(new InputStreamReader(System.in));

        System.out.println();

        System.out.println("Server sent " + chain.length + " certificate(s):");

        System.out.println();

        MessageDigest sha1 = MessageDigest.getInstance("SHA1");

        MessageDigest md5 = MessageDigest.getInstance("MD5");

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

            X509Certificate cert = chain[i];

            System.out.println(" " + (i + 1) + " Subject "

                + cert.getSubjectDN());

            System.out.println("   Issuer  " + cert.getIssuerDN());

            sha1.update(cert.getEncoded());

            System.out.println("   sha1    " + toHexString(sha1.digest()));

            md5.update(cert.getEncoded());

            System.out.println("   md5     " + toHexString(md5.digest()));

            System.out.println();

        }

//        int k=0;

//        System.out

//            .println("Enter certificate to add to trusted keystore or 'q' to quit: [1]");

//        String line = reader.readLine().trim();

//        try {

//            k = (line.length() == 0) ? 0 : Integer.parseInt(line) - 1;

//        } catch (NumberFormatException e) {

//            System.out.println("KeyStore not changed");

//            return;

//        }

        for( int k=0; k<chain.length; k++ ) {

            X509Certificate cert = chain[k];

            String alias = host + "-" + (k + 1);

            ks.setCertificateEntry(alias, cert);

            // OutputStream out = new FileOutputStream("jssecacerts");

            OutputStream out = new FileOutputStream(file);

            ks.store(out, passphrase);

            out.close();

            System.out.println();

            System.out.println(cert);

            System.out.println();

            System.out

                .println("Added certificate to keystore '" +

                        file + "' using alias '" + alias + "'");

        }

    }

    private static final char[] HEXDIGITS = "0123456789abcdef".toCharArray();

    private static String toHexString(byte[] bytes) {

        StringBuilder sb = new StringBuilder(bytes.length * 3);

        for (int b : bytes) {

            b &= 0xff;

            sb.append(HEXDIGITS[b >> 4]);

            sb.append(HEXDIGITS[b & 15]);

            sb.append(' ');

        }

        return sb.toString();

    }

    private static class SavingTrustManager implements X509TrustManager {

        private final X509TrustManager tm;

        private X509Certificate[] chain;

        SavingTrustManager(X509TrustManager tm) {

            this.tm = tm;

        }

        public X509Certificate[] getAcceptedIssuers() {

            throw new UnsupportedOperationException();

        }

        public void checkClientTrusted(X509Certificate[] chain, String authType)

            throws CertificateException {

            throw new UnsupportedOperationException();

        }

        public void checkServerTrusted(X509Certificate[] chain, String authType)

            throws CertificateException {

            this.chain = chain;

            tm.checkServerTrusted(chain, authType);

        }

    }

}