package org.argeo.cms.auth;

import java.io.IOException;

import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.UnsupportedCallbackException;
import javax.servlet.http.HttpServletRequest;

/**
 * Callback handler populating {@link HttpRequestCallback}s with the provided
 * {@link HttpServletRequest}, and ignoring any other callback.
 */
public class HttpRequestCallbackHandler implements CallbackHandler {
	final private HttpServletRequest request;

	public HttpRequestCallbackHandler(HttpServletRequest request) {
		this.request = request;
	}

	@Override
	public void handle(Callback[] callbacks) throws IOException,
			UnsupportedCallbackException {
		for (Callback callback : callbacks)
			if (callback instanceof HttpRequestCallback)
				((HttpRequestCallback) callback).setRequest(request);
	}

}