cas的基础配置

去除HTTPS的j基础认证方式

　　cas的：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" />

cas客户端的使用

　　1.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>

1. 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>

　　单点退出

退出完毕以后，要跳转到指定的地址，所有需要进行配置

　　cas的：cas-servlet.xml

<bean id="logoutAction" class="org.jasig.cas.web.flow.LogoutAction"
        p:servicesManager-ref="servicesManager"
        p:followServiceRedirects="${cas.logout.followServiceRedirects:true}"/>

配置数据源

deployerConfigContext.xml

<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"  （注：数据库的表名）
        p:user="root"  
        p:password="1234" />(注：此处为数据库客户端的登录账号和密码)

---

<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"/>

修改如下的配置

<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>

Spring Security和CAS整合

　　 搭建Spring Security的工程

　　　　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>

　　　　

1. 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>

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

1.pom中加入依赖

　　<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的文件

• 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 -->