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
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"
30 using namespace shibsp;
35 static const XMLCh attributeID[] = UNICODE_LITERAL_11(a,t,t,r,i,b,u,t,e,I,D);
36 static const XMLCh maximum[] = UNICODE_LITERAL_7(m,a,x,i,m,u,m);
37 static const XMLCh minimum[] = UNICODE_LITERAL_7(m,i,n,i,m,u,m);
40 * A match function that evaluates to true if the given attribute has as a number
41 * of values that falls between the minimum and maximum.
43 class SHIBSP_DLLLOCAL NumberOfAttributeValuesFunctor : public MatchFunctor
45 unsigned int m_min,m_max;
46 xmltooling::auto_ptr_char m_attributeID;
48 size_t count(const FilteringContext& filterContext) const;
51 NumberOfAttributeValuesFunctor(const DOMElement* e)
52 : m_min(0), m_max(INT_MAX), m_attributeID(e ? e->getAttributeNS(NULL,attributeID) : NULL) {
53 if (!m_attributeID.get() || !*m_attributeID.get())
54 throw ConfigurationException("No attributeID specified.");
55 const XMLCh* num = e->getAttributeNS(NULL, minimum);
57 m_min = XMLString::parseInt(num);
58 num = e->getAttributeNS(NULL, maximum);
60 m_max = XMLString::parseInt(num);
63 bool evaluatePolicyRequirement(const FilteringContext& filterContext) const {
64 size_t c = count(filterContext);
65 return (m_min <= c && c <= m_max);
68 bool evaluatePermitValue(const FilteringContext& filterContext, const Attribute& attribute, size_t index) const {
69 size_t c = count(filterContext);
70 return (m_min <= c && c <= m_max);
74 MatchFunctor* SHIBSP_DLLLOCAL NumberOfAttributeValuesFactory(const std::pair<const FilterPolicyContext*,const DOMElement*>& p)
76 return new NumberOfAttributeValuesFunctor(p.second);
81 size_t NumberOfAttributeValuesFunctor::count(const FilteringContext& filterContext) const
84 pair<multimap<string,Attribute*>::const_iterator,multimap<string,Attribute*>::const_iterator> attrs =
85 filterContext.getAttributes().equal_range(m_attributeID.get());
86 for (; attrs.first != attrs.second; ++attrs.first)
87 count += attrs.first->second->valueCount();