Hi,
I need to trap the username and password entered by the user when accessing
a secured web page, this is so that I can use this information when
connecting to an external system in a servlet.
The method I used was to have form based authentication but with the action
posting to a jsp rather than j_security_check, the jsp then stores the
username/password in the session and forwards the info on to
j_security_check.
This works perfectly with tomcat 3.2 beta 4, but tomcat 4 milestone 4 throws
an exception and creates a blank file called j_security_check in the login
directory.
I am running on redhat linux 7 with sun jdk 1.3.
The attached war file is the files I am using and the text file shows the
different output when run in v3.2 and v4.
Thanks,
Barry.
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securitytest.war
Output with tomcat 3.2 beta 4:
User: tomcat
Password: tomcat
Output with tomcat 4 milestone 4:
A Servlet Exception Has Occurred
Exception Report:
javax.servlet.ServletException: Servlet.service() for servlet default threw
exception
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:537)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292)
at
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:431)
at
login._0002flogin_0002fsecurity_0005fcheck_0002ejspsecurity_0005fcheck_jsp_32._jspService(_0002flogin_0002fsecurity_0005fcheck_0002ejspsecurity_0005fcheck_jsp_32.java:102)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:181)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:317)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:396)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:180)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:255)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:977)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:165)
at org.apache.catalina.valves.ValveBase.invokeNext(ValveBase.java:242)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:443)
at org.apache.catalina.valves.ValveBase.invokeNext(ValveBase.java:242)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:242)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:975)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:1876)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.valves.ValveBase.invokeNext(ValveBase.java:242)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:343)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:975)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:159)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:977)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:785)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:902)
at java.lang.Thread.run(Thread.java:484)
Root Cause:
java.lang.NullPointerException
at
org.apache.catalina.resources.FileResources.setResource(FileResources.java:586)
at
org.apache.catalina.servlets.DefaultServlet.doPut(DefaultServlet.java:401)
at
org.apache.catalina.servlets.DefaultServlet.doPost(DefaultServlet.java:365)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:517)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292)
at
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:431)
at
login._0002flogin_0002fsecurity_0005fcheck_0002ejspsecurity_0005fcheck_jsp_32._jspService(_0002flogin_0002fsecurity_0005fcheck_0002ejspsecurity_0005fcheck_jsp_32.java:102)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:181)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:317)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:396)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:180)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:255)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:977)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:165)
at org.apache.catalina.valves.ValveBase.invokeNext(ValveBase.java:242)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:443)
at org.apache.catalina.valves.ValveBase.invokeNext(ValveBase.java:242)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:242)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:975)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:1876)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.valves.ValveBase.invokeNext(ValveBase.java:242)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:343)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:975)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:159)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:977)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:785)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:902)
at java.lang.Thread.run(Thread.java:484)
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