WSO2 身份服务器在与 ADFS 服务器集成时抛出 Nullpointerexception

Question

我正在使用 WSO2 身份服务器 5.10.0，我正在尝试使用外部 ADFS 服务器实现 WSO2IS。

我遵循 https://docs.wso2.com/display/IS570/Configuring+AD+FS+as+a+Federated+Authenticator 示例，并从 WSO2 管理控制台将我的 ADFS 配置为身份提供程序。 服务器能够重定向到 ADFS 登录页面，但是当 ADFS 向 WSO2IS 发送回调时，它会抛出 NullPointerException。

完整的堆栈跟踪如下：

[2020-04-02 17:49:56,407] [3a9f62a7-17f1-4944-b561-e36a7b21736d] ERROR {org.wso2.carbon.identity.application.authentication.framework.handler.request.impl.DefaultRequestCoordinator} - Exception in Authentication Framework java.lang.NullPointerException
        at org.wso2.carbon.identity.application.authentication.framework.AbstractApplicationAuthenticator.publishAuthenticationStepAttempt(AbstractApplicationAuthenticator.java:170)
        at org.wso2.carbon.identity.application.authentication.framework.AbstractApplicationAuthenticator.process(AbstractApplicationAuthenticator.java:94)
        at org.wso2.carbon.identity.application.authentication.framework.handler.step.impl.DefaultStepHandler.doAuthentication(DefaultStepHandler.java:506)
        at org.wso2.carbon.identity.application.authentication.framework.handler.step.impl.DefaultStepHandler.handleResponse(DefaultStepHandler.java:480)
        at org.wso2.carbon.identity.application.authentication.framework.handler.step.impl.DefaultStepHandler.handle(DefaultStepHandler.java:179)
        at org.wso2.carbon.identity.application.authentication.framework.handler.sequence.impl.DefaultStepBasedSequenceHandler.handle(DefaultStepBasedSequenceHandler.java:185)
        at org.wso2.carbon.identity.application.authentication.framework.handler.sequence.impl.GraphBasedSequenceHandler.handle(GraphBasedSequenceHandler.java:111)
        at org.wso2.carbon.identity.application.authentication.framework.handler.request.impl.DefaultAuthenticationRequestHandler.handle(DefaultAuthenticationRequestHandler.java:158)
        at org.wso2.carbon.identity.application.authentication.framework.handler.request.impl.DefaultRequestCoordinator.handle(DefaultRequestCoordinator.java:240)
        at org.wso2.carbon.identity.application.authentication.framework.servlet.CommonAuthenticationServlet.doPost(CommonAuthenticationServlet.java:53)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
        at org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:37)
        at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)
        at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128)
        at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:60)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
        at org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.wso2.carbon.identity.captcha.filter.CaptchaFilter.doFilter(CaptchaFilter.java:66)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.owasp.csrfguard.CsrfGuardFilter.doFilter(CsrfGuardFilter.java:72)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.wso2.carbon.tomcat.ext.filter.CharacterSetFilter.doFilter(CharacterSetFilter.java:65)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.catalina.filters.HttpHeaderSecurityFilter.doFilter(HttpHeaderSecurityFilter.java:126)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
        at org.wso2.carbon.identity.context.rewrite.valve.TenantContextRewriteValve.invoke(TenantContextRewriteValve.java:86)
        at org.wso2.carbon.identity.authz.valve.AuthorizationValve.invoke(AuthorizationValve.java:110)
        at org.wso2.carbon.identity.auth.valve.AuthenticationValve.invoke(AuthenticationValve.java:75)
        at org.wso2.carbon.tomcat.ext.valves.CompositeValve.continueInvocation(CompositeValve.java:99)
        at org.wso2.carbon.tomcat.ext.valves.TomcatValveContainer.invokeValves(TomcatValveContainer.java:49)
        at org.wso2.carbon.tomcat.ext.valves.CompositeValve.invoke(CompositeValve.java:62)
        at org.wso2.carbon.tomcat.ext.valves.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:145)
        at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:688)
        at org.wso2.carbon.tomcat.ext.valves.CarbonContextCreatorValve.invoke(CarbonContextCreatorValve.java:57)
        at org.wso2.carbon.tomcat.ext.valves.RequestEncodingValve.invoke(RequestEncodingValve.java:49)
        at org.wso2.carbon.tomcat.ext.valves.RequestCorrelationIdValve.invoke(RequestCorrelationIdValve.java:119)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1639)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:748) 

WSO 中设置的 ADFS 详细信息：

Identity Provider Name: adfs
Uploaded valid PEM certificate
Federation Authenticators -> SAML2 Web SSO Configuration -> Enabled SAML2 Web SSO
                                                            Service Provider Entity Id : wso2is
                                                            Identity Provider Entity Id : {from ADFS metadata}
                                                            ACS URL : https:\\{ip}:9443\commonauth
                                                            SSO URL : {from ADFS metadata}

任何人都可以判断是否有问题？

Answer 1

这个空指针问题已经报告here 并在主服务器中修复。但是，当处理来自联合 IDP 的 SAML 响应并且用户为 null 时发生故障时，会从 line of code 引发此 NPE 问题。您可以在 here 的 SAML 出站组件中找到实际错误。

因此，您的根本问题似乎是从 ADFS 端收到的 SAML 断言中没有用户标识符。请检查一下。请验证从 ADFS 获取的 saml 响应，并检查是否在身份验证响应中发送用户信息。