IBM Websphere Plugin

Apache CXF Fediz ships a plugin to secure an IBM Websphere 7/8 Application Server using WS-Federation.

This page describes how to enable Federation for a IBM Websphere Application Server (WAS) instance hosting Relying Party (RP) applications. This configuration is not for a Websphere instance hosting the Fediz IDP and IDP STS WARs but for applications that use SAML assertions for authentication. After this configuration is done, the Websphere-RP instance will validate the incoming SignInResponse created by the IDP server.

Prior to doing this configuration, make sure you've first deployed the Fediz IDP and STS on the separate Servlet Container instance as discussed here, and can view the STS WSDL at the URL given on that page. That page also provides some tips for running multiple Tomcat instances on your machine.

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A Trust Authentication Interceptor (TAI) is a pluggable security component that is installed and configured at the IBM WebSphere Application Cell level. As such, any managed server on the Cell will have this component installed in and activated once defined in the WAS Security configuration.
A TAI implements the WAS specific interface com.ibm.wsspi.security.tai.TrustAssociationInterceptor. The WAS specific API for security layer customization is explained in details at the following:

http://pic.dhe.ibm.com/infocenter/wasinfo/v7r0/index.jsp?topic=%2Fcom.ibm.websphere.base.doc%2Finfo%2Faes%2Fae%2Frsec_taisubcreate.html^{Image Removed}

The Fediz Plugin for Websphere provides a TAI implementation which leverages the Fediz Core.

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You have to build the Fediz plugin on your own as it depends on IBM Websphere libraries.

• Checkout Build the Websphere sources packaged within the downloadable distribution archive or checkout the Fediz sources
  see here

• Add the library runtime.jar of IBM Rational Application Developer to your Maven repository
  mvn install:install-file -Dfile=<path-to-file> -DgroupId=com.ibm.ws -DartifactId=runtime -Dversion=7 -Dpackaging=jar

• run the maven command
  mvn clean install -Pwebsphere
  The Maven profile websphere enforces building the module plugins/websphere.

• You'll find the required libraries in plugins/websphere/target/...zip-with-dependencies.zip

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1. Open the Administative Console with Administrator privileges and navigate to Security / Global security
2. Ensure Application security is enabled
   
3. Navigate to Security / Global security / Web and SIP security and select Trust association
   
4. Check the Enable trust association check box
5. Select Interceptors
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6. Click on New and specify the Interceptor class name as org.apache.cxf.fediz.was.tai.FedizInterceptor
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The file defined in groups.mapping.file must have the following structure:

<?xml version="1.0" encoding="UTF-8"?>
<mapping>
  <samlToJ2EE>
    <claim>User</claim>
    <groups>
      <j2eeGroup>Authenticated</j2eeGroup>
      <j2eeGroup>Users</j2eeGroup>
    </groups>
  </samlToJ2EE>
  <samlToJ2EE>
    <claim>Manager</claim>
      <groups>
        <j2eeGroup>Manager</j2eeGroup>
        <j2eeGroup>Authenticated</j2eeGroup>
      </groups>
  </samlToJ2EE>
  <samlToJ2EE>
    <claim>Admin</claim>
      <groups>
        <j2eeGroup>Admin</j2eeGroup>
        <j2eeGroup>Authenticated</j2eeGroup>
      </groups>
  </samlToJ2EE>
</mapping>

A role value defined in element claim is mapped to a list of the Websphere JEE groups defined in j2eeGroup. Finally, these Websphere groups must be mapped to JEE roles. This indirection is required within Websphere.

Fediz configuration

The Fediz related configuration is done in a Servlet Container independent configuration file which is described here.

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