2 * Copyright 2001-2009 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
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.
18 * NumberOfAttributeValuesFunctor.cpp
20 * A match function that evaluates to true if the given attribute has as a number
21 * of values that falls between the minimum and maximum.
25 #include "exceptions.h"
26 #include "attribute/Attribute.h"
27 #include "attribute/filtering/FilteringContext.h"
28 #include "attribute/filtering/FilterPolicyContext.h"
29 #include "attribute/filtering/MatchFunctor.h"
31 using namespace shibsp;
36 static const XMLCh attributeID[] = UNICODE_LITERAL_11(a,t,t,r,i,b,u,t,e,I,D);
37 static const XMLCh maximum[] = UNICODE_LITERAL_7(m,a,x,i,m,u,m);
38 static const XMLCh minimum[] = UNICODE_LITERAL_7(m,i,n,i,m,u,m);
41 * A match function that evaluates to true if the given attribute has as a number
42 * of values that falls between the minimum and maximum.
44 class SHIBSP_DLLLOCAL NumberOfAttributeValuesFunctor : public MatchFunctor
46 unsigned int m_min,m_max;
47 xmltooling::auto_ptr_char m_attributeID;
49 size_t count(const FilteringContext& filterContext) const;
52 NumberOfAttributeValuesFunctor(const DOMElement* e)
53 : m_min(0), m_max(INT_MAX), m_attributeID(e ? e->getAttributeNS(NULL,attributeID) : NULL) {
54 if (!m_attributeID.get() || !*m_attributeID.get())
55 throw ConfigurationException("No attributeID specified.");
56 const XMLCh* num = e->getAttributeNS(NULL, minimum);
58 m_min = XMLString::parseInt(num);
59 num = e->getAttributeNS(NULL, maximum);
61 m_max = XMLString::parseInt(num);
64 bool evaluatePolicyRequirement(const FilteringContext& filterContext) const {
65 size_t c = count(filterContext);
66 return (m_min <= c && c <= m_max);
69 bool evaluatePermitValue(const FilteringContext& filterContext, const Attribute& attribute, size_t index) const {
70 size_t c = count(filterContext);
71 return (m_min <= c && c <= m_max);
75 MatchFunctor* SHIBSP_DLLLOCAL NumberOfAttributeValuesFactory(const std::pair<const FilterPolicyContext*,const DOMElement*>& p)
77 return new NumberOfAttributeValuesFunctor(p.second);
82 size_t NumberOfAttributeValuesFunctor::count(const FilteringContext& filterContext) const
85 pair<multimap<string,Attribute*>::const_iterator,multimap<string,Attribute*>::const_iterator> attrs =
86 filterContext.getAttributes().equal_range(m_attributeID.get());
87 for (; attrs.first != attrs.second; ++attrs.first)
88 count += attrs.first->second->valueCount();