Java手动添加SSL证书

package com.rockbb.test;

/*

 * 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

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

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

 */

import java.io.*;

import java.net.URL;

import java.security.*;

import java.security.cert.*;

import javax.net.ssl.*;

public class InstallCert

{

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

	{

		args = new String[]{"api.weixin.qq.com"};

		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 <host>[:port] [passphrase]");

			return;

		}

		File file = new File("jssecacerts");

		if (file.isFile() == false)

		{

			char SEP = File.separatorChar;

			File dir = new File("E:\\temp\\");

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

			if (file.isFile() == false)

			{

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

			}

		}

		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();

		}

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

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

		int k;

		try

		{

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

		}

		catch (NumberFormatException e)

		{

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

			return;

		}

		X509Certificate cert = chain[k];

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

		ks.setCertificateEntry(alias, cert);

		OutputStream out = new FileOutputStream("jssecacerts");

		ks.store(out, passphrase);

		out.close();

		System.out.println();

		System.out.println(cert);

		System.out.println();

		System.out.println("Added certificate to keystore 'jssecacerts' 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);

		}

	}

}