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1   /*
2    * Copyright [2007] [University Corporation for Advanced Internet Development, Inc.]
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package edu.internet2.middleware.shibboleth.common.config.attribute.filtering;
18  
19  import java.util.List;
20  import java.util.Map;
21  
22  import javax.xml.namespace.QName;
23  
24  import org.opensaml.xml.util.DatatypeHelper;
25  import org.opensaml.xml.util.XMLHelper;
26  import org.slf4j.Logger;
27  import org.slf4j.LoggerFactory;
28  import org.springframework.beans.factory.config.BeanDefinition;
29  import org.springframework.beans.factory.xml.BeanDefinitionParser;
30  import org.springframework.beans.factory.xml.ParserContext;
31  import org.w3c.dom.Element;
32  
33  import edu.internet2.middleware.shibboleth.common.config.SpringConfigurationUtils;
34  
35  /**
36   * Spring bean definition parser for Shibboleth attribute filtering engine attribute filter policy.
37   */
38  public class AttributeFilterPolicyGroupBeanDefinitionParser implements BeanDefinitionParser {
39  
40      /** Element name. */
41      public static final QName ELEMENT_NAME = new QName(AttributeFilterNamespaceHandler.NAMESPACE,
42              "AttributeFilterPolicyGroup");
43  
44      /** Schema type name. */
45      public static final QName TYPE_NAME = new QName(AttributeFilterNamespaceHandler.NAMESPACE,
46              "AttributeFilterPolicyGroupType");
47  
48      /** Local name of the policy requirement element. */
49      public static final QName POLICY_REQUIREMENT_ELEMENT_NAME = new QName(AttributeFilterNamespaceHandler.NAMESPACE,
50              "PolicyRequirement");
51  
52      /** Local name of the value filter element. */
53      public static final QName PERMIT_VALUE_ELEMENT_NAME = new QName(AttributeFilterNamespaceHandler.NAMESPACE,
54              "PermitValue");
55  
56      /** Class logger. */
57      private final Logger log = LoggerFactory.getLogger(AttributeFilterPolicyGroupBeanDefinitionParser.class);
58  
59      /** {@inheritDoc} */
60      public BeanDefinition parse(Element config, ParserContext context) {
61          String policyId = DatatypeHelper.safeTrimOrNullString(config.getAttributeNS(null, "id"));
62  
63          log.debug("Parsing attribute filter policy group {}", policyId);
64  
65          List<Element> children;
66          Map<QName, List<Element>> childrenMap = XMLHelper.getChildElements(config);
67  
68          children = childrenMap.get(new QName(AttributeFilterNamespaceHandler.NAMESPACE, "PolicyRequirementRule"));
69          SpringConfigurationUtils.parseInnerCustomElements(children, context);
70  
71          children = childrenMap.get(new QName(AttributeFilterNamespaceHandler.NAMESPACE, "AttributeRule"));
72          SpringConfigurationUtils.parseInnerCustomElements(children, context);
73  
74          children = childrenMap.get(new QName(AttributeFilterNamespaceHandler.NAMESPACE, "PermitValueRule"));
75          SpringConfigurationUtils.parseInnerCustomElements(children, context);
76  
77          children = childrenMap.get(new QName(AttributeFilterNamespaceHandler.NAMESPACE, "AttributeFilterPolicy"));
78          SpringConfigurationUtils.parseInnerCustomElements(children, context);
79  
80          return null;
81      }
82  }