3

我们的团队一直负责以某种方式保护 Web 服务，现在我们有其他使用 SpringSecurity CAS 保护的 Web 应用程序，我们认为它也可以用它来保护 Web 服务。想法是，如果用户通过 CAS 服务器登录到其中一个 Web 应用程序，当调用 Web 服务时，它将看到该用户已经过身份验证并允许他们使用它。我们不确定这是否是正确的方法，因为有很多关于使用 HMAC 或 Oauth 2.0 的讨论，但想到了 CAS，因为这是其他所有东西都在使用的。

以下是我遵循本教程后的内容：

http://www.oudmaijer.com/2009/12/28/spring-3-spring-security-3-cas-3-3-4-integration/

pom.xml

<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-core</artifactId>
    <version>3.0.0.RELEASE</version>
    <optional>false</optional>
</dependency>
<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-config</artifactId>
    <version>3.0.0.RELEASE</version>
    <scope>compile</scope>
</dependency>
<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-cas-client</artifactId>
    <version>3.0.0.RELEASE</version>
    <optional>false</optional>
</dependency>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
        xmlns="http://java.sun.com/xml/ns/javaee" 
        xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
        http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
        id="WebApp_ID" 
        version="2.5">
<display-name>webservice</display-name>
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
    <servlet-name>service</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>service</servlet-name>
    <url-pattern>/*</url-pattern>
</servlet-mapping>
<!-- Start Spring CAS integration -->
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/applicationContext-security.xml</param-value>
</context-param>
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<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>

<welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!-- End Spring CAS integration -->

applicationContext-security.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"     xmlns:security="http://www.springframework.org/schema/security" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.0.xsd">

<!--
    Enable security, let the casAuthenticationEntryPoint handle all intercepted urls.
    The CAS_FILTER needs to be in the right position within the filter chain.
-->
<security:http entry-point-ref="casAuthenticationEntryPoint" auto-config="true">
    <security:intercept-url pattern="/**" access="ROLE_USER"></security:intercept-url>
    <security:custom-filter position="CAS_FILTER" ref="casAuthenticationFilter"></security:custom-filter>
</security:http>

<!--
    Required for the casProcessingFilter, so define it explicitly set and
    specify an Id Even though the authenticationManager is created by
    default when namespace based config is used.
-->
<security:authentication-manager alias="authenticationManager">
    <security:authentication-provider ref="casAuthenticationProvider"></security:authentication-provider>
</security:authentication-manager>

<!--
    This section is used to configure CAS. The service is the
    actual redirect that will be triggered after the CAS login sequence.
-->
<bean id="serviceProperties" class="org.springframework.security.cas.ServiceProperties">
    <property name="service" value="http://localhost:8080/service/j_spring_cas_security_check"></property>
    <property name="sendRenew" value="false"></property>
</bean> 

    <!--
    The CAS filter handles the redirect from the CAS server and starts the ticket validation.
-->
<bean id="casAuthenticationFilter" class="org.springframework.security.cas.web.CasAuthenticationFilter">
    <property name="authenticationManager" ref="authenticationManager"></property>
</bean>

<!--
    The entryPoint intercepts all the CAS authentication requests.
    It redirects to the CAS loginUrl for the CAS login page.
-->
<bean id="casAuthenticationEntryPoint" class="org.springframework.security.cas.web.CasAuthenticationEntryPoint">
    <property name="loginUrl" value=""></property>
    <property name="serviceProperties" ref="serviceProperties"></property>
</bean>

<!--
    Handles the CAS ticket processing.
 -->
<bean id="casAuthenticationProvider" class="org.springframework.security.cas.authentication.CasAuthenticationProvider">
    <property name="userDetailsService" ref="userService"></property>
    <property name="serviceProperties" ref="serviceProperties"></property>
    <property name="ticketValidator">
        <bean class="org.jasig.cas.client.validation.Cas20ServiceTicketValidator">
            <constructor-arg index="0" value=""></constructor-arg>
        </bean>
    </property>
    <property name="key" value="cas"></property>
</bean>

<!--
    The users available for this application.
-->
<security:user-service id="userService">
    <security:user name="user" password="user" authorities="ROLE_USER"></security:user>
</security:user-service>

不确定缺少什么或发生了什么，但是当我在 eclipse 中启动我的 tomcat 服务器时，我收到一个错误，例如：

ERROR 2012-04-25 09:24:33 Context initialization failed
java.lang.NoClassDefFoundError: org/springframework/core/convert/support/PropertyTypeDescriptor
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:108)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1003)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:907)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:722)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:410)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.lang.ClassNotFoundException: org.springframework.core.convert.support.PropertyTypeDescriptor
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
... 29 more
Apr 25, 2012 9:24:33 AM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class  org.springframework.web.context.ContextLoaderListener 
java.lang.NoClassDefFoundError: org/springframework/core/convert/support/PropertyTypeDescriptor
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:108)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1003)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:907)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:722)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:410)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.lang.ClassNotFoundException: org.springframework.core.convert.support.PropertyTypeDescriptor
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
... 29 more
Apr 25, 2012 9:24:33 AM org.apache.catalina.core.StandardContext start
SEVERE: Error listenerStart
Apr 25, 2012 9:24:33 AM org.apache.catalina.core.StandardContext start
SEVERE: Context [/bannernotifications] startup failed due to previous errors
Apr 25, 2012 9:24:33 AM org.apache.catalina.core.ApplicationContext log
INFO: Closing Spring root WebApplicationContext
Apr 25, 2012 9:24:33 AM org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
Apr 25, 2012 9:24:33 AM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Apr 25, 2012 9:24:33 AM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/15  config=null
Apr 25, 2012 9:24:33 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 855 ms

对不起，这太长了，但我只是想尽可能多地放在那里。

正如@smp7d 指出的那样，CAS 可能不是最好的情况。我找到了这个，

保护 REST 和 JSON

这正是这个 Web 服务的内容，RESTful 并提供 JSON，它将在内部托管并且只能在内部访问。现在我想问题已经从使用 CAS 转移到了我们应该使用什么，标准是什么？

谢谢

4

1 回答 1

0

看来你要参考资料...

我可以告诉你，我现在怀疑这是否存在，当我执行类似的集成时，我必须通过代码才能真正了解如何为我们的环境正确设置它。（因为它都是开源的，所以这对你来说应该不是问题。）然后我们根据我们学到的知识创建了内部文档。这将是您需要避免尝试将现有配置中的工作实现拼凑在一起的情况之一。有人需要完全了解实际发生的事情。

至于参与 CAS 身份验证的 Web 服务，您需要实现类似 Restlet 的东西： https ://wiki.jasig.org/display/CASUM/RESTful+API

我建议您彻底评估您的系统，以确定它是否真的需要这样的解决方案。如果您的“网络服务”调用来自浏览器，CAS 将通过正常设置来处理它（尽管您必须有创意来处理未经身份验证的情况，因为您不会重定向到登录页面）。

于 2012-04-25T16:15:36.160 回答