CAS实现单点登录
jopen
11年前
CAS介绍
- 开源的企业级单点登录解决方案
- CAS Server 是需要独立部署的 Web 应用
- CAS Client 支持非常多的客户端(这里指单点登录系统中的各个 Web 应用),包括 Java, .Net, PHP, Perl, Apache, uPortal, Ruby 等
CAS服务部署
- CAS服务端下载:http://downloads.jasig.org/cas/
- 解压zip文件,改名为cas.war,然后复制到tomcat/webapp目录下
- 浏览器访问:http://localhost:8080/cas
CAS-SERVER的默认验证规则:只要用户名和密码相同就认证通过(仅仅用于测试,生成环境需要根据实际情况修改),输入admin/admin 点击登录,就可以看到登录成功的页面
Tomcat配置HTTPS
- 创建证书
这里使用JDK生成的证书,正式环境需购买专业提供商的证书
用JDK自带的keytool工具生成证书:
keytool -genkey -alias xiaokaceng -keyalg RSA -keystore d :/cas/xiaokaceng
注意:127.0.0.1==sso.xiaokaceng.com 在C:\Windows\System32\drivers\etc\hosts配置,只能输入域名不能输入IP
- 导出证书
keytool -export -file d:/cas/xiaokaceng.crt -alias xiaoka ceng -keystore d:/cas/xiaokaceng
证书导出完成,可提供JDK使用
- JVM导入证书
keytool -import -keystore D:\JavaDev\jdk1.7\jre\lib\secur ity\cacerts -file d:\cas\xiaokaceng.crt -alias xiaokaceng
特别提示:
keytool error: java.io.IOException: Keystore was tampered with, or password was incorrect
那么请输入密码:changeit
- 应用到Web容器
启用Tomcat的SSL,开启83和87的注释,配置keystoreFile和keystorePass
<Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" keystoreFile="D:/cas/xiaokaceng" keystorePass="123456"/>
注意:keystoreFile和keystorePass有大小写之分
CAS登录
- 启动两个tomcat客户端,修改其端口(tomcat默认自带的 webapps\examples 作为演示的简单web项目)
- 整合CAS-Client
CAS-Client 下载地址:http://downloads.jasig.org/cas-clients/,解压并拷贝相应jar
修改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--> <listener> <listener-class>org.jasig.cas.client.session.SingleSignOutHttpSessionListener</listener-class> </listener> <!-- 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-mapping> <filter-name>CAS Single Sign Out Filter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <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://sso.xiaokaceng.com:8443/cas/login</param-value> </init-param> <init-param> <param-name>serverName</param-name> <param-value>http://localhost:18080</param-value> </init-param> </filter> <filter-mapping> <filter-name>CAS Filter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 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://sso.xiaokaceng.com:8443/cas</param-value> </init-param> <init-param> <param-name>serverName</param-name> <param-value>http://localhost:18080</param-value> </init-param> </filter> <filter-mapping> <filter-name>CAS Validation Filter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 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> <filter-mapping> <filter-name>CAS HttpServletRequest Wrapper Filter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 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 Assertion Thread Local Filter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- ======================== 单点登录结束 ======================== -->
测试验证,访问http://localhost:18080/examples/servlets/servlet/HelloWorldExample
CAS登出
退出链接为:https://sso.xiaokaceng.com:8443/cas/logout
CAS服务界面
- 登录界面:casLoginView.jsp
- 登录成功:casGenericSuccess.jsp
- 登出界面:casLogoutView.jsp
来自:http://my.oschina.net/u/1264515/blog/181598