2 * Copyright 2001-2007 Internet2
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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11 * distributed under the License is distributed on an "AS IS" BASIS,
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13 * See the License for the specific language governing permissions and
14 * limitations under the License.
20 * A MatchFunctor that negates the result of a contained functor.
24 #include "exceptions.h"
25 #include "attribute/filtering/FilterPolicyContext.h"
26 #include "util/SPConstants.h"
28 #include <xercesc/util/XMLUniDefs.hpp>
29 #include <xmltooling/util/XMLHelper.h>
31 using namespace shibsp;
32 using namespace xmltooling;
38 * A MatchFunctor that negates the result of a contained functor.
40 class SHIBSP_DLLLOCAL NotMatchFunctor : public MatchFunctor
43 NotMatchFunctor(const pair<const FilterPolicyContext*,const DOMElement*>& p);
45 bool evaluatePolicyRequirement(const FilteringContext& filterContext) const {
47 return !(m_functor->evaluatePolicyRequirement(filterContext));
51 bool evaluatePermitValue(const FilteringContext& filterContext, const Attribute& attribute, size_t index) const {
53 return !(m_functor->evaluatePermitValue(filterContext, attribute, index));
58 MatchFunctor* buildFunctor(const DOMElement* e, const FilterPolicyContext* functorMap);
60 const MatchFunctor* m_functor;
63 MatchFunctor* SHIBSP_DLLLOCAL NotMatchFunctorFactory(const pair<const FilterPolicyContext*,const DOMElement*>& p)
65 return new NotMatchFunctor(p);
68 static XMLCh _id[] = UNICODE_LITERAL_2(i,d);
69 static XMLCh _ref[] = UNICODE_LITERAL_3(r,e,f);
70 static XMLCh Rule[] = UNICODE_LITERAL_4(R,u,l,e);
71 static XMLCh RuleReference[] = UNICODE_LITERAL_13(R,u,l,e,R,e,f,e,r,e,n,c,e);
74 NotMatchFunctor::NotMatchFunctor(const pair<const FilterPolicyContext*,const DOMElement*>& p) : m_functor(NULL)
76 const DOMElement* e = XMLHelper::getFirstChildElement(p.second);
78 if (XMLHelper::isNodeNamed(e, shibspconstants::SHIB2ATTRIBUTEFILTER_MF_BASIC_NS, Rule)) {
79 m_functor = buildFunctor(e, p.first);
81 else if (XMLHelper::isNodeNamed(e, shibspconstants::SHIB2ATTRIBUTEFILTER_MF_BASIC_NS, RuleReference)) {
82 auto_ptr_char ref(e->getAttributeNS(NULL, _ref));
83 if (ref.get() && *ref.get()) {
84 multimap<string,MatchFunctor*>::const_iterator rule = p.first->getMatchFunctors().find(ref.get());
85 m_functor = (rule!=p.first->getMatchFunctors().end()) ? rule->second : NULL;
91 throw ConfigurationException("No child Rule installed into NotMatchFunctor.");
94 MatchFunctor* NotMatchFunctor::buildFunctor(const DOMElement* e, const FilterPolicyContext* functorMap)
96 // We'll track and map IDs just for consistency, but don't require them or worry about dups.
97 auto_ptr_char temp(e->getAttributeNS(NULL,_id));
98 const char* id = (temp.get() && *temp.get()) ? temp.get() : "";
99 if (*id && functorMap->getMatchFunctors().count(id))
102 auto_ptr<QName> type(XMLHelper::getXSIType(e));
104 throw ConfigurationException("Child Rule found with no xsi:type.");
106 MatchFunctor* func = SPConfig::getConfig().MatchFunctorManager.newPlugin(*type.get(), make_pair(functorMap,e));
107 functorMap->getMatchFunctors().insert(multimap<string,MatchFunctor*>::value_type(id, func));