一、CAS单点登录服务端的部署
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部署
把CAS所对应的war包部署到tomcat中
4.品优购资源V1.3\配套软件\配套软件\CAS\cas.war
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配置
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更改tomcat的端口号
<Connector URIEncoding="UTF-8" connectionTimeout="20000" port="8099" protocol="HTTP/1.1" redirectPort="8443"/>
- 更改cas.properties配置文件
server.name=http://localhost:8099
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去除HTTPS的认证方式
deployerConfigContext.xml <!-- required for proxy ticket mechanism. --> <bean id = "proxyAuthenticationHandler" class="org.jasig.cas.authentication.handler.support.HttpBasedServiceCredentialsAuthenticationHandler" p:httpClient-ref="httpClient" p:requireSecure="false"/> spring-configuration\ticketGrantingTicketCookieGenerator.xml <bean id="ticketGrantingTicketCookieGenerator" class="org.jasig.cas.web.support.CookieRetrievingCookieGenerator" p:cookieSecure="false" p:cookieMaxAge="3600" p:cookieName="CASTGC" p:cookiePath="/cas" /> spring-configuration\warnCookieGenerator.xml <bean id="warnCookieGenerator" class="org.jasig.cas.web.support.CookieRetrievingCookieGenerator" p:cookieSecure="false" p:cookieMaxAge="3600" p:cookieName="CASPRIVACY" p:cookiePath="/cas" />
二、CAS客户端的使用
- 加入cas客户端相关的依赖
<!-- cas --> <dependency> <groupId>org.jasig.cas.client</groupId> <artifactId>cas-client-core</artifactId> <version>3.3.3</version> </dependency>
- 在web.xml文件中进行配置(过滤器)
- 单点登出的过滤器 <!-- 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> - 认证过滤器 <!-- 该过滤器负责用户的认证工作,必须启用它 --> <filter> <filter-name>CASFilter</filter-name> <filter-class>org.jasig.cas.client.authentication.AuthenticationFilter</filter-class> <init-param> <param-name>casServerLoginUrl</param-name> <param-value>http://localhost:8099/cas/login</param-value> <!--这里的server是服务端的IP --> </init-param> <init-param> <param-name>serverName</param-name> <param-value>http://localhost:9002</param-value> <!-- 当前应用的地址 --> </init-param> </filter> <filter-mapping> <filter-name>CASFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> - 票据校验过滤器 <!-- 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>http://localhost:8099/cas</param-value> <!--这里的server是服务端的IP --> </init-param> <init-param> <param-name>serverName</param-name> <param-value>http://localhost:9002</param-value> <!-- 当前应用的地址 --> </init-param> </filter> <filter-mapping> <filter-name>CAS Validation Filter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> - 获取登录名所需要的过滤器 <!-- 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>
三、单点退出
之前请求退出登录的地址: http://localhost:8099/cas/logout
如果退出完毕以后,我们需要跳转到指定的地址,这时我们就需要做一些配置;
CAS服务端的配置:cas-servlet.xml
<bean id="logoutAction" class="org.jasig.cas.web.flow.logoutAction" p:servicesManager-ref="servicesManager" p:followServiceRedirects="${cas.logout.followServiceRedirects:true}"/>
在进行退出的时候,就需要把要访问的目标地址作为参数传递过去:
http://localhost:8099/cas/logout?service=http://www.itcast.cn
四、配置数据源
在实际应用中,我们通常需要使用外部的数据源进行登陆操作,此时我们就需要对数据源进行相应的配置,配置方案如下:
修改deployerConfigContext.xml这个文件: 1. 加入如下配置 <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" p:driverClass="com.MysqL.jdbc.Driver" p:jdbcUrl="jdbc:MysqL://127.0.0.1:3306/pinyougoudb?characterEncoding=utf8" p:user="root" p:password="1234" /> <bean id="passwordEncoder" class="org.jasig.cas.authentication.handler.DefaultPasswordEncoder" c:encodingalgorithm="MD5" p:characterEncoding="UTF-8" /> <bean id="dbAuthHandler" class="org.jasig.cas.adaptors.jdbc.QueryDatabaseAuthenticationHandler" p:dataSource-ref="dataSource" p:sql="select password from tb_user where username = ?" p:passwordEncoder-ref="passwordEncoder"/> 2. 修改原有的配置 <bean id="authenticationManager" class="org.jasig.cas.authentication.PolicyBasedAuthenticationManager"> <constructor-arg> <map> <entry key-ref="proxyAuthenticationHandler" value-ref="proxyPrincipalResolver" /> <entry key-ref="dbAuthHandler" value-ref="primaryPrincipalResolver" /> </map> </constructor-arg> <property name="authenticationPolicy"> <bean class="org.jasig.cas.authentication.AnyAuthenticationPolicy" /> </property> </bean> 3. 加入相关依赖重点:CAS单点登陆系统和SpringSecurity安全 框架的整合
1. 在pom.xml文件中加入依赖 <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-web</artifactId> <version>4.1.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-config</artifactId> <version>4.1.0.RELEASE</version> </dependency> 2. 在web.xml文件中去配置委托代理过滤器DelegatingFilterProxy <filter> <filter-name>springSecurityFilterChain</filter-name> <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> </filter> <filter-mapping> <filter-name>springSecurityFilterChain</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 配置spring核心监听器ContextLoaderListener --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-security.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> 3. 在spring-security.xml配置文件中进行配置 认证的配置: <authentication-manager></authentication-manager> 授权的配置: <http></http> 2. 整合 思路: CAS Client在使用的时候在web.xml文件中去配置了很多的过滤器 Spring Security的原理 -----> Spring Security的功能实现也是通过过滤器进行实现的,在Spring Security中提供了很多的过滤器,如果我们把Spring Security 所提供的过滤器配置到了web.xml文件中,那么web.xml的内容就比较繁琐; 为了简化开发Spring Security提供了一个过滤器链,在该过滤器链中去配置过滤器。 整合的思路: 就是把CAS Client所使用到了的过滤器加入到Spring Security的过滤器链中 步骤: 1. 在pom.xml加入依赖 <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-cas</artifactId> <version>4.1.0.RELEASE</version> </dependency> <dependency> <groupId>org.jasig.cas.client</groupId> <artifactId>cas-client-core</artifactId> <version>3.3.3</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>log4j-over-slf4j</artifactId> </exclusion> </exclusions> </dependency> 2. 在web.xml文件中去配置DelegatingFilterProxy <filter> <filter-name>springSecurityFilterChain</filter-name> <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> </filter> <filter-mapping> <filter-name>springSecurityFilterChain</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 配置spring核心监听器ContextLoaderListener --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-security.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> 3. 修改spring-security.xml文件 - 入口点的配置: 告诉我们的应用程序,现在要进行认证,请请求CAS完成 <!-- entry-point-ref 入口点引用 --> <http use-expressions="false" entry-point-ref="casProcessingFilterEntryPoint"> <intercept-url pattern="/**" access="ROLE_USER"/> <csrf disabled="true"/> <!-- custom-filter为过滤器, position 表示将过滤器放在指定的位置上,before表示放在指定位置之前 ,after表示放在指定的位置之后 --> <custom-filter ref="casAuthenticationFilter" position="CAS_FILTER" /> <custom-filter ref="requestSinglelogoutFilter" before="logoUT_FILTER"/> <custom-filter ref="singlelogoutFilter" before="CAS_FILTER"/> </http> <!-- CAS入口点 开始 --> <beans:bean id="casProcessingFilterEntryPoint" class="org.springframework.security.cas.web.CasAuthenticationEntryPoint"> <beans:property name="loginUrl" value="http://localhost:8099/cas/login"/> <!-- 单点登录服务器登录URL --> <beans:property name="serviceProperties" ref="serviceProperties"/> </beans:bean> <beans:bean id="serviceProperties" class="org.springframework.security.cas.ServiceProperties"> <beans:property name="service" value="http://localhost:9003/login/cas"/> <!--service 配置自身工程的根地址+/login/cas --> </beans:bean> <!-- CAS入口点 结束 --> - 认证过滤器 <!-- 认证过滤器 开始 --> <beans:bean id="casAuthenticationFilter" class="org.springframework.security.cas.web.CasAuthenticationFilter"> <beans:property name="authenticationManager" ref="authenticationManager"/> </beans:bean> <!-- 认证管理器 --> <authentication-manager alias="authenticationManager"> <authentication-provider ref="casAuthenticationProvider"></authentication-provider> </authentication-manager> <!-- 认证提供者 --> <beans:bean id="casAuthenticationProvider" class="org.springframework.security.cas.authentication.CasAuthenticationProvider"> <beans:property name="authenticationUserDetailsService"> <beans:bean class="org.springframework.security.core.userdetails.UserDetailsByNameServiceWrapper"> <beans:constructor-arg ref="userDetailsService" /> </beans:bean> </beans:property> <beans:property name="serviceProperties" ref="serviceProperties"/> <!-- ticketValidator 为票据验证器 --> <beans:property name="ticketValidator"> <beans:bean class="org.jasig.cas.client.validation.Cas20ServiceTicketValidator"> <beans:constructor-arg index="0" value="http://localhost:8099/cas"/> </beans:bean> </beans:property> <beans:property name="key" value="an_id_for_this_auth_provider_only"/> </beans:bean> <!-- 认证类 --> <beans:bean id="userDetailsService" class="cn.itcast.demo.service.UserDetailServiceImpl"/> - 退出过滤器 <!-- 认证过滤器 结束 --> <!-- 单点登出 开始 完成真正的退出--> <beans:bean id="singlelogoutFilter" class="org.jasig.cas.client.session.SingleSignOutFilter"/> <!-- 经过此配置,当用户在地址栏输入本地工程 /logout/cas ; 配置了退出地址的映射,目的:为了提高安全性 --> <beans:bean id="requestSinglelogoutFilter" class="org.springframework.security.web.authentication.logout.logoutFilter"> <beans:constructor-arg value="http://localhost:8099/cas/logout?service=http://localhost:9003/index2.html"/> <beans:constructor-arg> <beans:bean class="org.springframework.security.web.authentication.logout.SecurityContextlogoutHandler"/> </beans:constructor-arg> <beans:property name="filterProcessesUrl" value="/logout/cas"/> </beans:bean> <!-- 单点登出 结束 -->
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