org.springframework.security.web.access.channel.AbstractRetryEntryPoint Maven / Gradle / Ivy
/*
* Copyright 2002-2016 the original author or authors.
*
* 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 org.springframework.security.web.access.channel;
import org.springframework.security.web.*;
import org.springframework.util.Assert;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* @author Luke Taylor
*/
public abstract class AbstractRetryEntryPoint implements ChannelEntryPoint {
// ~ Static fields/initializers
// =====================================================================================
protected final Log logger = LogFactory.getLog(getClass());
// ~ Instance fields
// ================================================================================================
private PortMapper portMapper = new PortMapperImpl();
private PortResolver portResolver = new PortResolverImpl();
/** The scheme ("http://" or "https://") */
private final String scheme;
/** The standard port for the scheme (80 for http, 443 for https) */
private final int standardPort;
private RedirectStrategy redirectStrategy = new DefaultRedirectStrategy();
// ~ Constructors
// ===================================================================================================
public AbstractRetryEntryPoint(String scheme, int standardPort) {
this.scheme = scheme;
this.standardPort = standardPort;
}
// ~ Methods
// ========================================================================================================
public void commence(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
String queryString = request.getQueryString();
String redirectUrl = request.getRequestURI()
+ ((queryString == null) ? "" : ("?" + queryString));
Integer currentPort = Integer.valueOf(portResolver.getServerPort(request));
Integer redirectPort = getMappedPort(currentPort);
if (redirectPort != null) {
boolean includePort = redirectPort.intValue() != standardPort;
redirectUrl = scheme + request.getServerName()
+ ((includePort) ? (":" + redirectPort) : "") + redirectUrl;
}
if (logger.isDebugEnabled()) {
logger.debug("Redirecting to: " + redirectUrl);
}
redirectStrategy.sendRedirect(request, response, redirectUrl);
}
protected abstract Integer getMappedPort(Integer mapFromPort);
protected final PortMapper getPortMapper() {
return portMapper;
}
public void setPortMapper(PortMapper portMapper) {
Assert.notNull(portMapper, "portMapper cannot be null");
this.portMapper = portMapper;
}
public void setPortResolver(PortResolver portResolver) {
Assert.notNull(portResolver, "portResolver cannot be null");
this.portResolver = portResolver;
}
protected final PortResolver getPortResolver() {
return portResolver;
}
/**
* Sets the strategy to be used for redirecting to the required channel URL. A
* {@code DefaultRedirectStrategy} instance will be used if not set.
*
* @param redirectStrategy the strategy instance to which the URL will be passed.
*/
public void setRedirectStrategy(RedirectStrategy redirectStrategy) {
Assert.notNull(redirectStrategy, "redirectStrategy cannot be null");
this.redirectStrategy = redirectStrategy;
}
protected final RedirectStrategy getRedirectStrategy() {
return redirectStrategy;
}
}