/*
* JBoss, Home of Professional Open Source.
* Copyright 2013, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.domain.http.server.security;
import static org.jboss.as.domain.http.server.logging.HttpServerLogger.ROOT_LOGGER;
import java.io.IOException;
import java.util.function.Function;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
/**
* Filter to redirect to the error context while the security realm is not ready.
*
* @author <a href="mailto:darran.lofthouse@jboss.com">Darran Lofthouse</a>
*/
abstract class RealmReadinessHandler implements HttpHandler {
private final Function<HttpServerExchange, Boolean> readyFunction;
private final HttpHandler next;
RealmReadinessHandler(final Function<HttpServerExchange, Boolean> readyFunction, final HttpHandler next) {
this.readyFunction = readyFunction;
this.next = next;
}
@Override
public void handleRequest(HttpServerExchange exchange) throws Exception {
if (readyFunction.apply(exchange)) {
next.handleRequest(exchange);
} else {
try {
rejectRequest(exchange);
} catch (IOException e) {
ROOT_LOGGER.error(e);
exchange.setStatusCode(500);
exchange.endExchange();
}
}
}
/**
* Method to be implemented by sub classes to handle the rejection process due to the realm not being ready to authenticate
* clients.
* <p/>
* Possible examples are sending a redirect to a page to inform the user that it is not possible due to no users being
* defined or sending a DMR response indicating a failure.
*
* @param exchange
* @throws IOException
*/
abstract void rejectRequest(HttpServerExchange exchange) throws Exception;
}