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jforum与cas集成
2008/10/08 下午 01:56

1.安装CAS

下载cas server ,设置好服务器端,这个过程不复杂,主要是生成服务器端证书和客户端证书,因为CAS SSO使用SSL加密协议进行通信处理。
登陆页面 : https://<完整域名>:8443/cas/login

2.安装JForum-2.1.8

到http://www.jforum.net/download.jsp下载。开发的话建议下载src版本,这样可以导入到Eclipse下进行源码调整。
测试页面:http://localhost:8080/jforum

3.整合处理,主要为如下三步骤

1)filter处理

打开${TOMCAT_HOME}/webapps/jforum/WEB-INF/web.xml,加入如下filter代码:
.....
    
<filter>
        
<filter-name>CAS Filter</filter-name>
        
<filter-class>edu.yale.its.tp.cas.client.filter.CASFilter</filter-class>
        
<init-param>
            
<param-name>
                 edu.yale.its.tp.cas.client.filter.loginUrl
            
</param-name>
            
<param-value>
               
https://<完整域名>:8443/cas/login
            </param-value>
        
</init-param>
        
<init-param>
            
<param-name>
                 edu.yale.its.tp.cas.client.filter.validateUrl
            
</param-name>
            
<param-value>
               
https://<完整域名>:8443/cas/proxyValidate
            
</param-value>
        
</init-param>
        
<init-param>
            
<param-name>
                 edu.yale.its.tp.cas.client.filter.serverName
            
</param-name>
            
<param-value>localhost:8080</param-value>
        
</init-param>
    
</filter>
   
    
<filter-mapping>
        
<filter-name>CAS Filter</filter-name>
        
<url-pattern>/*</url-pattern>
    
</filter-mapping>
.....

此Filter建立放在最上面,让请求资源首先定向到https://<完整域名>:8443/cas/login,CAS服务端进行认证处理,再继续客户应用处理(filters)

2.根据RemoteUserSSO,可以另外创建一个文件如CasUserSSO,其实现原始SSO类:


   新建一个java文件CasUserSSO.java ,代码如下:
package net.jforum.sso;

import net.jforum.context.RequestContext;
import net.jforum.entities.UserSession;
import net.jforum.util.preferences.ConfigKeys;
import net.jforum.util.preferences.SystemGlobals;

import org.apache.log4j.Logger;

import edu.yale.its.tp.cas.client.ServiceTicketValidator;

public class CasUserSSO implements SSO ...{

    
static final Logger logger = Logger.getLogger(CasUserSSO.class.getName());

    
public String authenticateUser(RequestContext request) ...{
         String username
= (String) request.getSessionContext().getAttribute(
                
"edu.yale.its.tp.cas.client.filter.user");
         logger.info(
"Login User:" + username);
        
return username;

     }


    
public boolean isSessionValid(UserSession userSession,
             RequestContext request)    
...{
         ServiceTicketValidator sv
= new ServiceTicketValidator();
         String remoteUser
= sv.getUser();
        
// user has since logged out
        if (remoteUser == null
                
&& userSession.getUserId() != SystemGlobals
                         .getIntValue(ConfigKeys.ANONYMOUS_USER_ID))    
...{
            
return false;
         }

        
// user has since logged in
        else if (remoteUser != null
                
&& userSession.getUserId() == SystemGlobals
                         .getIntValue(ConfigKeys.ANONYMOUS_USER_ID))    
...{
            
return false;
         }

        
// user has changed user
        else if (remoteUser != null
                
&& !remoteUser.equals(userSession.getUsername())) ...{
            
return false;
         }

        
return true;
     }


}

这部分主要是处理SSO认证,获取认证中心传来的username等等。

3.修改SystemGlobals.properties文件

打开${TOMCAT_HOME}/webapps/jforum/WEB-INF/config/SystemGlobals.properties,如下设定:

authentication.type = sso
sso.implementation = net.jforum.sso.CasUserSSO
sso.redirect = https://<完整域名>:8443/cas/login

4.整合测试:

a.键入:http://localhost:8080/jforum
b.确认证书处理
c. 键入SSO用户名/密码,CAS SSO缺省的是使用SimpleTestUsernamePasswordAuthenticationHandler,即要求用户名与密码一致才能通过 验证,可以调整CAS SSO Server端使用Database进行用户校验处理,如下调整
deployerConfigContext.xml.
<!--    
<bean                     class="org.jasig.cas.authentication.handler.support.SimpleTestUsernamePasswordAuthenticationHandler" />
-->   
<bean class="org.jasig.cas.adaptors.jdbc.QueryDatabaseAuthenticationHandler">
           
<property name="sql" value="select password from app_user where username=?" />
                     
<property name="dataSource" ref="dataSource" />
                     
<property name="passwordEncoder">
                         
<bean class="org.jasig.cas.authentication.handler.DefaultPasswordEncoder">
                          
<constructor-arg value="SHA"/>
                        
</bean>
          
</property>
</bean>  
d.进入到论坛主页,此时jforum的后台表jforum_users会新增一条数据记录,完成!


摘自:http://blog.csdn.net/lifei88/archive/2007/12/21/1957814.aspx

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