/*
* 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.config.http;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.ManagedList;
import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.security.web.DefaultSecurityFilterChain;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;
import java.util.*;
/**
* @author Luke Taylor
*/
public class FilterChainBeanDefinitionParser implements BeanDefinitionParser {
private static final String ATT_REQUEST_MATCHER_REF = "request-matcher-ref";
public BeanDefinition parse(Element elt, ParserContext pc) {
MatcherType matcherType = MatcherType.fromElement(elt);
String path = elt.getAttribute(HttpSecurityBeanDefinitionParser.ATT_PATH_PATTERN);
String requestMatcher = elt.getAttribute(ATT_REQUEST_MATCHER_REF);
String filters = elt.getAttribute(HttpSecurityBeanDefinitionParser.ATT_FILTERS);
BeanDefinitionBuilder builder = BeanDefinitionBuilder
.rootBeanDefinition(DefaultSecurityFilterChain.class);
if (StringUtils.hasText(path)) {
Assert.isTrue(!StringUtils.hasText(requestMatcher), "");
builder.addConstructorArgValue(matcherType.createMatcher(pc, path, null));
}
else {
Assert.isTrue(StringUtils.hasText(requestMatcher), "");
builder.addConstructorArgReference(requestMatcher);
}
if (filters.equals(HttpSecurityBeanDefinitionParser.OPT_FILTERS_NONE)) {
builder.addConstructorArgValue(Collections.EMPTY_LIST);
}
else {
String[] filterBeanNames = StringUtils.tokenizeToStringArray(filters, ",");
ManagedList<RuntimeBeanReference> filterChain = new ManagedList<RuntimeBeanReference>(
filterBeanNames.length);
for (String name : filterBeanNames) {
filterChain.add(new RuntimeBeanReference(name));
}
builder.addConstructorArgValue(filterChain);
}
return builder.getBeanDefinition();
}
}