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HomeBackend DevelopmentPHP Tutorial cas实现单点登录,登出(java跟php客户端) (转)

cas实现单点登录,登出(java和php客户端) (转)

最近项目中需要做单点登录,客户端包含java和php,java有几个应用程序,php是discuz+supesite+ucenter,需

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要这几个客户端都要能单点登录和登出,在网上找了许多相关资料,今天终于配置成功,步骤如下:

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1、cas服务端:下载地址:http://downloads.jasig.org/cas/cas的服务端和客户端有许多版本,最新版本和老版本

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有很大的区别,目前服务端最新版本为:cas-server-3.4.4-release.zip

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解压cas-server-3.4.4-release.zip将modules目录下的cas-server-webapp-3.4.4.war改名称为cas.war复制到

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tomcat的webapps下,启动tomcat,访问:http://localhost:8080/cas/login 就可以看到登录界面了:


cas服务端默认采用的是 用户名=密码的验证,并且采用的是https验证,需要给tomact配置证书,本系统没有采用https验证,若采用https验证可参考:

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http://blog.csdn.net/haydenwang8287/archive/2010/07/26/5765941.aspx

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1.1、若不采用https验证,服务器端需要配置

1、cas\WEB-INF\deployerConfigContext.xml

p:httpClient-ref="httpClient"/>

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?增加参数p:requireSecure="false",是否需要安全验证,即HTTPS,false为不采用,加上去之后如下:

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?p:httpClient-ref="httpClient"? p:requireSecure="false"/>

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2、cas\WEB-INF\spring-configuration\

ticketGrantingTicketCookieGenerator.xml

????? p:cookieSecure="true"

????? p:cookieMaxAge="-1"

????? p:cookieName="CASTGC"

????? p:cookiePath="/cas" />

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参数p:cookieSecure="true",同理为HTTPS验证相关,TRUE为采用HTTPS验证,FALSE为不采用https验证。

参数p:cookieMaxAge="-1",简单说是COOKIE的最大生命周期,-1为无生命周期,即只在当前打开的IE窗口有效,IE关闭或重新打开其它窗口,仍会要求验证。可以根据需要修改为大于0的数字,比如3600等,意思是在3600秒内,打开任意IE窗口,都不需要验证。

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1.2、服务器端退出访问:http://localhost:8080/cas/logout,

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若希望退出后能返回则需要配置

服务端cas-servlet.xml配置

增加属性 p:followServiceRedirects="true"

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退出链接为:http://localhost:8080/cas/logout?service=http://localhost:8080/Casclient/index.jsp

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1.3、更改服务器端验证方式,采用数据库验证:

修改配置文件deployerConfigContext.xml,加dbcp连接池:(以oracle为例)

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????
????????? oracle.jdbc.driver.OracleDriver
????

????
????????? jdbc:oracle:thin:@192.168.18.26:1521:orcl
????

????
????????? test
????

????
????????? test
????

??

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需要的jar包有:(见附件:cas-server-support-jdbc-3.4.4.jar,commons-dbcp-1.2.1.jar,commons-pool-1.3.jar,ojdbc14_g.jar)

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配置加密方式,cas内置的有MD5加密,也可以写自己的加密类,实现org.jasig.cas.authentication.handler.PasswordEncoder接口即可:

? ???? class="org.jasig.cas.authentication.handler.DefaultPasswordEncoder" autowire="byName">?????
??? ?
??

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注释掉默认的验证方式,采用数据库查询验证:


?????
?????
????

?

?????
?????
????? ???????? value="select password from userinfo where lower(username) = lower(?)" />
?????
?????

???
??

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---------------到这里cas服务端的配置就完成了。

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2、java客户端配置,下载客户端:http://downloads.jasig.org/cas-clients/,目前最新版本为:cas-client-3.2.0

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将modules下的jar复制到java客户端Casclient1的lib下,在web.xml中配置过滤器,配置如下(详情见附件):


?xmlns="
http://java.sun.com/xml/ns/j2ee"
?xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance"
?xsi:schemaLocation="
http://java.sun.com/xml/ns/j2ee
?
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
?
?
?

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???????? org.jasig.cas.client.session.SingleSignOutHttpSessionListener
?

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???????? CAS Single Sign Out Filter
???????? org.jasig.cas.client.session.SingleSignOutFilter
?

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???????? CAS Single Sign Out Filter
???????? /*
?

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?
?
???????? CASFilter
???????? org.jasig.cas.client.authentication.AuthenticationFilter
????????
???????????????? casServerLoginUrl
???????????????? http://192.168.18.8:8080/cas/login
????????????????
????????

????????
???????????????? serverName
???????????????? http://192.168.18.8:8989
????????

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?
???????? CASFilter
???????? /*
?

?
?
?
???????? CAS Validation Filter
????????
???????????????? org.jasig.cas.client.validation.Cas20ProxyReceivingTicketValidationFilter

????????
???????????????? casServerUrlPrefix
???????????????? http://192.168.18.8:8080/cas
????????

????????
???????????????? serverName
???????????????? http://192.168.18.8:8989
????????

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?
???????? CAS Validation Filter
???????? /*
?

?
?
?
???????? CAS HttpServletRequest Wrapper Filter
????????
???????????????? org.jasig.cas.client.util.HttpServletRequestWrapperFilter

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?
???????? CAS HttpServletRequest Wrapper Filter
???????? /*
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??????? CAS Assertion Thread Local Filter
??????? org.jasig.cas.client.util.AssertionThreadLocalFilter


??????? CAS Assertion Thread Local Filter
??????? /*

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?
?
??? index.jsp
?

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页面为:

AttributePrincipal principal = (AttributePrincipal)request.getUserPrincipal();???
String username = principal.getName();
%>

----------------------------------------------------------

登录成功,这是客户端1啊



用户名:

http://localhost:8989/Casclient2/index.jsp">进入客户端2

http://localhost:8080/cas/logout?service=http://localhost:8989/Casclient1/index.jsp">退出

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-----------到这里java客户端配置成功,发布到tomcat,复制Casclient1改名为Casclient2,启动tomcat,

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访问Casclient1,跳转到登录页面,登录成功后成功转向登录成功页面,这时访问Casclient2发现不需要登录即显示登录成功页面,java单点登录成功。

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3、配置php客户端,下载php客户端:http://downloads.jasig.org/cas-clients/php/?,目前最新版本为:CAS-1.2.0RC2

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新建php工程:Phpcasclient1,将CAS文件夹和CAS.php复制到工程中,修改CAS/client.php,将其中的https改为http,将docs/examples/example_simple.php

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复制到工程中,修改如下:

//
// phpCAS simple client
//

// import phpCAS lib
include_once('CAS.php');

phpCAS::setDebug();

// initialize phpCAS
phpCAS::client(CAS_VERSION_2_0,'192.168.18.8',8080,'cas');

// no SSL validation for the CAS server
phpCAS::setNoCasServerValidation();

// force CAS authentication
phpCAS::forceAuthentication();

// at this step, the user has been authenticated by the CAS server
// and the user's login name can be read with phpCAS::getUser().

// logout if desired
if (isset($_REQUEST['logout'])) {

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?$param=array("service"=>"http://localhost/Phpcasclient1/example_simple.php");//退出登录后返回

?phpCAS::logout($param);


}

// for this test, simply print that the authentication was successfull
?>

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??? phpCAS simple client
?
?
???

Successfull Authentication!这是客户端1


???

the user's login is .


???

phpCAS version is .


?????

http://192.168.18.8:8989/Casclient1/index.jsp

">去java客户端1


?????

退出


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php配置需要开启php_curl,可以复制Phpcasclient1为Phpcasclient2

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访问:http://localhost/Phpcasclient1/example_simple.php,跳转到登录页面,登录成功后访问Phpcasclient2,不需要登录,

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php单点登录成功,这时再访问java客户端发现也不需要登录,php和java应用之间单点登录成功。

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注:php的phpCAS::client(CAS_VERSION_2_0,'192.168.18.8',8080,'cas');地址需要和java的web.xml中的cas服务器地址一致,我开始一个写的ip:192.168.18.8,一个写的localhost,

php和java总是不能同步登录,郁闷了好久

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----------------到这里java和php的客户端已经配置完成,现在你会发现php和java之间不能单点登出,php端退出java客户端也退出,反之java退出但是php却没有同步退出

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这里需要做一个配置,在

phpCAS::setNoCasServerValidation();

// force CAS authentication
phpCAS::forceAuthentication();

这里加上

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phpCAS::setNoCasServerValidation();

// force CAS authentication

phpCAS::handleLogoutRequests();? 这里会检测服务器端java退出的通知,就能实现php和java间同步登出了。

phpCAS::forceAuthentication();

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至于discuz+supesite的单点登录,再了解了php单点登录的原理后就需要改造discuz+supesite的登录代码了,discuz的为logging.php

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supersite的为batch.login.php,俺是做java开发的,对php不是很熟悉,所以改造的觉得不是很靠谱,大致是先让discuz单点登录,获取用户名,根据用户

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获取数据库中的密码再交给discuz系统自己的登录系统登录。discuz是采用cookie验证的,所以在java端退出后,discuz不会退出。

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若谁有改造很成功的可以交流下。

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参考网址:

http://blog.csdn.net/DL88250/archive/2008/08/20/2799522.aspx

http://www.wsria.com/archives/1349

http://tonrenyuye.blog.163.com/blog/static/30012576200922925820471/

http://www.discuz.net/thread-1416206-1-1.html

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