Fediz Extensions

This page describes the extension points in Fediz to enrich its functionality further.

Callback Handler

The redirect URL to the IDP can contain several query parameters to customize the sign in process. Some parameters are configured statically in the Fediz configuration file some others can be resolved at runtime when the initial request is received by the Fediz plugin.

The following table gives an overview of the XML element name in the Fediz configuration file, the query parameter name of the sign-in request to the IDP as well as the Callback class.

XML element	Query parameter	Callback class	Since version
authenticationType	wauth	WAuthCallback	1.0.0
homeRealm	whr	HomeRealmCallback	1.0.0
issuer	N.A.	IDPCallback	1.0.0
freshness	wfresh	FreshnessCallback	1.0.2

If you configure a class which implements the interface javax.security.auth.callback.CallbackHandler you get the corresponding Callback object where you must set the value which is then added to the query parameter. The Callback object provides the HttpServletRequest object which might give you the required information to resolve the value.

Here is a snippet of the configuration to configure a CallbackHandler:

...
        <protocol xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="federationProtocolType" version="1.2">
            ...
            <homeRealm type="Class" value="MyCallbackHandler " />
            ...
        </protocol>
...


And a sample implementation of the CallbackHandler:


public class MyCallbackHandler implements CallbackHandler {
    
    public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
        for (int i = 0; i < callbacks.length; i++) {
            if (callbacks[i] instanceof HomeRealmCallback) {
                HomeRealmCallback callback = (HomeRealmCallback) callbacks[i];
                HttpServletRequest request = callback.getRequest();
                String homeRealm = ...
                callback.setHomeRealm(homeRealm);
            } else {
                throw new UnsupportedCallbackException(callbacks[i], "Unrecognized Callback");
            }
        }
    }
}




Custom Token Validator

todo

Change Notification Preferences

View Online | View Changes | Add Comment

[CONF] Apache CXF > Fediz Extensions