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.AbstractSingleBeanDefinitionParser;
import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.security.web.DefaultSecurityFilterChain;
import org.springframework.security.web.SecurityFilterChain;
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(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();
}
}