org.springframework.security.web.access.channel.SecureChannelProcessor Maven / Gradle / Ivy
/*
* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
*
* 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 java.io.IOException;
import java.util.Collection;
import javax.servlet.ServletException;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.web.FilterInvocation;
import org.springframework.util.Assert;
/**
* Ensures channel security is active by review of
* HttpServletRequest.isSecure()
responses.
*
* The class responds to one case-sensitive keyword, {@link #getSecureKeyword}. If this
* keyword is detected, HttpServletRequest.isSecure()
is used to determine
* the channel security offered. If channel security is not present, the configured
* ChannelEntryPoint
is called. By default the entry point is
* {@link RetryWithHttpsEntryPoint}.
*
* The default secureKeyword
is REQUIRES_SECURE_CHANNEL
.
*
* @author Ben Alex
*/
public class SecureChannelProcessor implements InitializingBean, ChannelProcessor {
// ~ Instance fields
// ================================================================================================
private ChannelEntryPoint entryPoint = new RetryWithHttpsEntryPoint();
private String secureKeyword = "REQUIRES_SECURE_CHANNEL";
// ~ Methods
// ========================================================================================================
public void afterPropertiesSet() throws Exception {
Assert.hasLength(secureKeyword, "secureKeyword required");
Assert.notNull(entryPoint, "entryPoint required");
}
public void decide(FilterInvocation invocation, Collection config)
throws IOException, ServletException {
Assert.isTrue((invocation != null) && (config != null),
"Nulls cannot be provided");
for (ConfigAttribute attribute : config) {
if (supports(attribute)) {
if (!invocation.getHttpRequest().isSecure()) {
entryPoint
.commence(invocation.getRequest(), invocation.getResponse());
}
}
}
}
public ChannelEntryPoint getEntryPoint() {
return entryPoint;
}
public String getSecureKeyword() {
return secureKeyword;
}
public void setEntryPoint(ChannelEntryPoint entryPoint) {
this.entryPoint = entryPoint;
}
public void setSecureKeyword(String secureKeyword) {
this.secureKeyword = secureKeyword;
}
public boolean supports(ConfigAttribute attribute) {
return (attribute != null) && (attribute.getAttribute() != null)
&& attribute.getAttribute().equals(getSecureKeyword());
}
}