/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package io.undertow.servlet.attribute;

import io.undertow.attribute.ExchangeAttribute;
import io.undertow.attribute.ExchangeAttributeBuilder;
import io.undertow.attribute.ReadOnlyAttributeException;
import io.undertow.attribute.RequestURLAttribute;
import io.undertow.server.HttpServerExchange;
import io.undertow.servlet.handlers.ServletRequestContext;

import javax.servlet.RequestDispatcher;

The request URL
Author:Stuart Douglas
/** * The request URL * * @author Stuart Douglas */
public class ServletRequestURLAttribute implements ExchangeAttribute { public static final String REQUEST_URL_SHORT = "%U"; public static final String REQUEST_URL = "%{REQUEST_URL}"; public static final ExchangeAttribute INSTANCE = new ServletRequestURLAttribute(); private ServletRequestURLAttribute() { } @Override public String readAttribute(final HttpServerExchange exchange) { ServletRequestContext src = exchange.getAttachment(ServletRequestContext.ATTACHMENT_KEY); if (src == null) { return RequestURLAttribute.INSTANCE.readAttribute(exchange); } String uri = (String) src.getServletRequest().getAttribute(RequestDispatcher.FORWARD_REQUEST_URI); if (uri != null) { return uri; } uri = (String) src.getServletRequest().getAttribute(RequestDispatcher.ERROR_REQUEST_URI); if (uri != null) { return uri; } return RequestURLAttribute.INSTANCE.readAttribute(exchange); } @Override public void writeAttribute(final HttpServerExchange exchange, final String newValue) throws ReadOnlyAttributeException { RequestURLAttribute.INSTANCE.writeAttribute(exchange, newValue); } @Override public String toString() { return REQUEST_URL; } public static final class Builder implements ExchangeAttributeBuilder { @Override public String name() { return "Request URL"; } @Override public ExchangeAttribute build(final String token) { if (token.equals(REQUEST_URL) || token.equals(REQUEST_URL_SHORT)) { return ServletRequestURLAttribute.INSTANCE; } return null; } @Override public int priority() { return 1; } } }