Adding servlet filter to CAS server

[Mark van Rossum]

Hi,

Following on from my previous message about CAS throwing an NPE when a service specifies renew=true, I'm trying to write a Servlet Filter to remove this parameter from an incoming request before it gets to CAS.

I've written a filter and put it in "src/main/java/..../StripRenewFilter.java", then tried adding the filter to the web.xml file as:

  <filter>

    <filter-name>StripRenewFilter</filter-name>

    <filter-class>uk.ac.bris.adt.StripRenewFilter</filter-class>

  </filter>

  <filter-mapping>

    <filter-name>StripRenewFilter</filter-name>

    <url-pattern>/*</url-pattern>

  </filter-mapping>

But it doesn't take effect.  I've also tried annotating the filter with @WebFilter which equally had no effect.

I'm running CAS locally using "gradlew run"

How can I load a filter into a CAS server to achieve this?

Thank you!

Mark van Rossum

[Julio Romero]

Hello Mark,

I know it's probably way to late for a reply, but I came across a similar issue.

It looks like you have almost everything good to go, the only thing you're missing is declaring your custom servlet in the META-INF/spring.factories file, like below:

org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
com.example.CustomConfig1,\
com.example.CustomConfig2,\ 

uk.ac.bris.adt.StripRenewFilter

Regards,

Julio