sso单点登录cas认证

1.下载cas的server和client包（cas-server-4.0.0-release.zip，cas-client-3.3.3-release.zip），https://www.apereo.org/projects/cas/download-cas，http://downloads.jasig.org/cas-clients/。。

2.自定义测试域名hosts，更改C:\Windows\System32\drivers\etc路径下的hosts文件

 

127.0.0.1	www.owenmoney.com
127.0.0.1	www.owensso.com
127.0.0.1	www.owenmall.com

 3.使用keytool安装证书

 

 

keytool -genkey -alias owensso -keyalg RSA -keysize 2048 -keystore E:/temp/cas/keys/owensso.keystore
#keystore密码：changeit,您的名字与姓氏是什么？www.owensso.com（否则会出现java.security.cert.CertificateException: No subject alternative DNS name matching <hostname> found）
keytool -export -file E:/temp/cas/keys/owensso.crt -alias  owensso -keystore  E:/temp/cas/keys/owensso.keystore

keytool -import -keystore D:\app\Java\jre6\lib\security\cacerts -file E:/temp/cas/keys/owensso.crt -alias owensso

4.客户端安装证书（不安装会出现PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target ）

 

 

/*
 * 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.
 */

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;

public class InstallCert {

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

		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");
			}
		}
		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);
		}
	}

}

 编译后，执行 java InstallCert www.owensso.com:8443

 

 

Enter certificate to add to trusted keystore or 'q' to quit: [1]

 回复：1，回车。

 

将生成的jssecacerts文件copy到D:\app\Java\jdk1.6.0_23\jre\lib\security目录下，不确定运行的那一个jre，把java_home下的jre文件夹相同路径下也备一份

5.tomcat的https配置

解压3个tomcat，命名tomcat80，tomcat8080，tomcat8443，对应域名：www.owenmoney.com:80,www.owenmall.com:8080,www.owensso.com:8443,更改配置tomcat的server.xml文件，其他端口号都相应的+1，8443tomcat的server.xml如下,ciphers参数是解决高版本的chrome和firefox的弱权限问题

 

<Connector port="8443" 
			   ciphers= " TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA " 
			   protocol="HTTP/1.1" SSLEnabled="true"
               maxThreads="150" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS" 
			   keystoreFile="E:/temp/cas/keys/owensso.keystore"    
			   keystorePass="changeit"
			   />

 6.解压cas-server-4.0.0-release.zip,把modules/cas-server-webapp-4.0.0.war发布到tomcat8443下，启动tomcat，访问https://www.owensso.com:8443/cas/login,用户名：casuser密码：Mellon

 

7.解压cas-client-3.3.3-release.zip，复制cas-client-core-3.3.3.jar包到owenmall工程下，添加web.xml

 

<!-- ======================== 单点登录开始 ======================== -->
	<!-- 用于单点退出，该过滤器用于实现单点登出功能，可选配置-->
	<!-- 该过滤器用于实现单点登出功能，可选配置。 -->
	<filter>
		<filter-name>CAS Single Sign Out Filter</filter-name>
		<filter-class>org.jasig.cas.client.session.SingleSignOutFilter</filter-class>
	</filter>
	<filter>
		<filter-name>CAS Filter</filter-name>
		<filter-class>org.jasig.cas.client.authentication.AuthenticationFilter</filter-class>
		<init-param>
			<param-name>casServerLoginUrl</param-name>
			<param-value>https://www.owensso.com:8443/cas/login</param-value>
		</init-param>
		<init-param>
			<param-name>serverName</param-name>
			<param-value>http://www.owenmall.com:8080</param-value>
		</init-param>
	</filter>
	<!-- 该过滤器负责对Ticket的校验工作，必须启用它 -->
	<filter>
		<filter-name>CAS Validation Filter</filter-name>
		<filter-class>
			org.jasig.cas.client.validation.Cas20ProxyReceivingTicketValidationFilter</filter-class>
		<init-param>
			<param-name>casServerUrlPrefix</param-name>
			<param-value>https://www.owensso.com:8443/cas</param-value>
		</init-param>
		<init-param>
			<param-name>serverName</param-name>
			<param-value>http://www.owenmall.com:8080</param-value>
		</init-param>
	</filter>
	<!--
		该过滤器负责实现HttpServletRequest请求的包裹，
		比如允许开发者通过HttpServletRequest的getRemoteUser()方法获得SSO登录用户的登录名，可选配置。
	-->
	<filter>
		<filter-name>CAS HttpServletRequest Wrapper Filter</filter-name>
		<filter-class>org.jasig.cas.client.util.HttpServletRequestWrapperFilter</filter-class>
	</filter>
	<!--
		该过滤器使得开发者可以通过org.jasig.cas.client.util.AssertionHolder来获取用户的登录名。
		比如AssertionHolder.getAssertion().getPrincipal().getName()。
	-->
	<filter>
		<filter-name>CAS Assertion Thread Local Filter</filter-name>
		<filter-class>org.jasig.cas.client.util.AssertionThreadLocalFilter</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>CAS Single Sign Out Filter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<filter-mapping>
		<filter-name>CAS Filter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<filter-mapping>
		<filter-name>CAS Validation Filter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<filter-mapping>
		<filter-name>CAS HttpServletRequest Wrapper Filter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<filter-mapping>
		<filter-name>CAS Assertion Thread Local Filter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<listener>
		<listener-class>org.jasig.cas.client.session.SingleSignOutHttpSessionListener</listener-class>
	</listener>

	<!-- ======================== 单点登录结束 ======================== -->

 7.启动tomcat8443，tomcat8080，访问www.owenmall.com:8080/sso-client,网页自动跳转到https://www.owensso.com:8443/cas/login输入用户名密码，成功后将会回跳开始页面！

 

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