Report Viewer in Web Application with Authentication

[kolja.ehlersiconplc.com]

Dear all,

I am having this problem since a few days now and I can not find a way to solve it. I have implemented SSO using JAAS and everything works fine. Now I want to make use of the HTTP Api and embedd different components in our web application without having to recode all of the functionality as input values and all these things. That is why I am trying to embedd the report viewer into an iframe using the following URL:

http://192.168.11.96:8080/jasperserver-pro/flow.html?_flowId=viewReportFlow&reportUnit=/public/Reports/Patient_Report_Report&decorate=no

In general this works if I supply a j_username and j_password with the request. I do not want to do that, so what I did is I login the user using the rest API and receive the session cookie from the jasper server. Now I wrote a little proxy servlet that exchanges

/jasperserver-pro/ with my proxy URL. In m proxy servlet and modify the header and add the cookie to it. This works also in general authentication wise. But when I open the viewReportFlow it loads the report viewer and alot of css and javascript files but when it comes to:

/jasperserver-pro/flow.html?freshData=true&_flowExecutionKey=e2s8&_eventId=refreshReport&decorate=no&confirm=true&decorator=empty&ajax=true

I do get an exception back from the jasper server. I am sure my request just looks exactly like the one if I open this not inside of my web application but in the jasper server iteself. I just dont understand the exception. Can somebody help?

Thanks!

2013-03-20 17:00:59,673 ERROR errorPage_jsp,http-8080-39:487 - stack trace of exception that redirected to errorPage.jsp
java.lang.IllegalStateException: Exception occurred rendering view org.springframework.web.servlet.view.JstlView: name 'modules/viewReport/reportOutput'; URL [/WEB-INF/jsp/modules/viewReport/reportOutput.jsp]
    at org.springframework.webflow.mvc.view.AbstractMvcView.render(AbstractMvcView.java:191)
    at org.springframework.webflow.engine.ViewState.render(ViewState.java:296)
    at org.springframework.webflow.engine.ViewState.doEnter(ViewState.java:186)
    at org.springframework.webflow.engine.State.enter(State.java:194)
    at org.springframework.webflow.engine.Transition.execute(Transition.java:227)
    at org.springframework.webflow.engine.impl.FlowExecutionImpl.execute(FlowExecutionImpl.java:393)
    at org.springframework.webflow.engine.impl.RequestControlContextImpl.execute(RequestControlContextImpl.java:214)
    at org.springframework.webflow.engine.TransitionableState.handleEvent(TransitionableState.java:119)
    at org.springframework.webflow.engine.Flow.handleEvent(Flow.java:555)
    at org.springframework.webflow.engine.impl.FlowExecutionImpl.handleEvent(FlowExecutionImpl.java:388)
    at org.springframework.webflow.engine.impl.RequestControlContextImpl.handleEvent(RequestControlContextImpl.java:210)
    at org.springframework.webflow.engine.ActionState.doEnter(ActionState.java:105)
    at org.springframework.webflow.engine.State.enter(State.java:194)
    at org.springframework.webflow.engine.Transition.execute(Transition.java:227)
    at org.springframework.webflow.engine.impl.FlowExecutionImpl.execute(FlowExecutionImpl.java:393)
    at org.springframework.webflow.engine.impl.RequestControlContextImpl.execute(RequestControlContextImpl.java:214)
    at org.springframework.webflow.engine.TransitionableState.handleEvent(TransitionableState.java:119)
    at org.springframework.webflow.engine.Flow.handleEvent(Flow.java:555)
    at org.springframework.webflow.engine.impl.FlowExecutionImpl.handleEvent(FlowExecutionImpl.java:388)
    at org.springframework.webflow.engine.impl.RequestControlContextImpl.handleEvent(RequestControlContextImpl.java:210)
    at org.springframework.webflow.engine.ViewState.handleEvent(ViewState.java:232)
    at org.springframework.webflow.engine.ViewState.resume(ViewState.java:196)
    at org.springframework.webflow.engine.Flow.resume(Flow.java:545)
    at org.springframework.webflow.engine.impl.FlowExecutionImpl.resume(FlowExecutionImpl.java:261)
    at org.springframework.webflow.executor.FlowExecutorImpl.resumeExecution(FlowExecutorImpl.java:169)
    at sun.reflect.GeneratedMethodAccessor452.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    at org.springframework.security.intercept.method.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:66)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
    at sun.proxy.$Proxy129.resumeExecution(Unknown Source)
    at org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.handle(FlowHandlerAdapter.java:183)
    at org.springframework.webflow.mvc.servlet.FlowController.handleRequest(FlowController.java:174)
    at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:900)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:827)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:399)
    at com.jaspersoft.jasperserver.api.security.IPadSupportFilter.doFilter(IPadSupportFilter.java:67)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.jasperserver.api.security.JSSwitchUserProcessingFilter.doFilterHttp(JSSwitchUserProcessingFilter.java:154)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
    at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.ji.license.LicenseCheckFilter.doFilter(LicenseCheckFilter.java:95)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.ji.license.JILicenseFilter.doFilter(JILicenseFilter.java:66)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.jasperserver.api.metadata.user.service.impl.MetadataAuthenticationProcessingFilter.doFilter(MetadataAuthenticationProcessingFilter.java:139)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.jasperserver.war.util.RequestParameterAuthenticationFilter.doFilter(RequestParameterAuthenticationFilter.java:96)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.jasperserver.multipleTenancy.MTBasicProcessingFilter.doFilterHttp(MTBasicProcessingFilter.java:180)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.jasperserver.war.UserPreferencesFilter.doFilter(UserPreferencesFilter.java:192)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:278)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.jasperserver.war.UserPreferencesFilter.doFilter(UserPreferencesFilter.java:192)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.jasperserver.api.logging.filter.BasicLoggingFilter.doFilter(BasicLoggingFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.jasperserver.api.security.JSCsrfGuardFilter.doFilter(JSCsrfGuardFilter.java:101)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.jasperserver.api.security.WebAppSecurityFilter.doFilter(WebAppSecurityFilter.java:76)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.jasperserver.war.MultipartRequestWrapperFilter.doFilter(MultipartRequestWrapperFilter.java:90)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at com.jaspersoft.jasperserver.api.security.encryption.EncryptionFilter.doFilter(EncryptionFilter.java:130)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411)
    at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:188)
    at org.springframework.security.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:99)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at com.jaspersoft.jasperserver.war.util.SessionDecoratorFilter.doFilter(SessionDecoratorFilter.java:43)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at com.jaspersoft.jasperserver.war.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:67)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at com.jaspersoft.jasperserver.war.P3PFilter.doFilter(P3PFilter.java:43)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:563)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
    at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:879)
    at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:600)
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1703)
    at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException: java.lang.NullPointerException
    at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:502)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:412)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:127)
    at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:56)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:262)
    at org.springframework.webflow.mvc.servlet.ServletMvcView.doRender(ServletMvcView.java:50)
    at org.springframework.webflow.mvc.view.AbstractMvcView.render(AbstractMvcView.java:187)
    ... 119 more
Caused by: javax.servlet.ServletException: javax.servlet.jsp.JspException: java.lang.NullPointerException
    at org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:861)
    at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:794)
    at org.apache.jsp.WEB_002dINF.jsp.modules.viewReport.reportOutput_jsp._jspService(reportOutput_jsp.java:76)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
    ... 136 more
Caused by: java.lang.NullPointerException
    at com.jaspersoft.jasperserver.war.tags.JasperViewerTag.doEndTag(JasperViewerTag.java:177)
    at org.apache.jsp.WEB_002dINF.jsp.modules.viewReport.reportOutput_jsp._jspx_meth_js_005fjasperviewer_005f0(reportOutput_jsp.java:111)
    at org.apache.jsp.WEB_002dINF.jsp.modules.viewReport.reportOutput_jsp._jspService(reportOutput_jsp.java:67)
    ... 139 more

[kolja.ehlersiconplc.com]

Got it myself, it was the referer header that was missing...

[ssdatla]

I am experiencing similar issue. Could you help me fix the issue?

Thanks,

Srini