2 * Copyright 2001-2005 Internet2
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4 * Licensed under the Apache License, Version 2.0 (the "License");
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5 * you may not use this file except in compliance with the License.
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6 * You may obtain a copy of the License at
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8 * http://www.apache.org/licenses/LICENSE-2.0
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10 * Unless required by applicable law or agreed to in writing, software
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11 * distributed under the License is distributed on an "AS IS" BASIS,
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12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 * See the License for the specific language governing permissions and
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14 * limitations under the License.
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18 * ChainingMetadataProvider.cpp
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20 * MetadataProvider that uses multiple providers in sequence.
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23 #include "internal.h"
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24 #include "exceptions.h"
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25 #include "saml2/metadata/ChainingMetadataProvider.h"
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27 #include <xmltooling/util/XMLHelper.h>
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28 #include <xercesc/util/XMLUniDefs.hpp>
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30 using namespace opensaml::saml2md;
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31 using namespace opensaml;
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32 using namespace xmlsignature;
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33 using namespace xmltooling;
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34 using namespace std;
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36 namespace opensaml {
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38 MetadataProvider* SAML_DLLLOCAL ChainingMetadataProviderFactory(const DOMElement* const & e)
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40 return new ChainingMetadataProvider(e);
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45 static const XMLCh GenericMetadataProvider[] = UNICODE_LITERAL_16(M,e,t,a,d,a,t,a,P,r,o,v,i,d,e,r);
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46 static const XMLCh type[] = UNICODE_LITERAL_4(t,y,p,e);
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48 ChainingMetadataProvider::ChainingMetadataProvider(const DOMElement* e) : ObservableMetadataProvider(e), m_tlsKey(NULL)
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51 e = e ? xmltooling::XMLHelper::getFirstChildElement(e, GenericMetadataProvider) : NULL;
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53 auto_ptr_char temp(e->getAttributeNS(NULL,type));
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55 auto_ptr<MetadataProvider> provider(
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56 SAMLConfig::getConfig().MetadataProviderManager.newPlugin(temp.get(), e)
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58 ObservableMetadataProvider* obs = dynamic_cast<ObservableMetadataProvider*>(provider.get());
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60 obs->addObserver(this);
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61 m_providers.push_back(provider.get());
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64 e = XMLHelper::getNextSiblingElement(e, GenericMetadataProvider);
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67 catch (XMLToolingException&) {
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68 for_each(m_providers.begin(), m_providers.end(), xmltooling::cleanup<MetadataProvider>());
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71 m_tlsKey = ThreadKey::create(NULL);
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74 ChainingMetadataProvider::~ChainingMetadataProvider()
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77 for_each(m_providers.begin(), m_providers.end(), xmltooling::cleanup<MetadataProvider>());
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80 void ChainingMetadataProvider::onEvent(MetadataProvider& provider)
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85 void ChainingMetadataProvider::init()
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87 for_each(m_providers.begin(), m_providers.end(), mem_fun<void,MetadataProvider>(&MetadataProvider::init));
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90 Lockable* ChainingMetadataProvider::lock()
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92 return this; // we're not lockable ourselves...
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95 void ChainingMetadataProvider::unlock()
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97 // Check for a locked provider.
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98 void* ptr=m_tlsKey->getData();
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100 m_tlsKey->setData(NULL);
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101 reinterpret_cast<MetadataProvider*>(ptr)->unlock();
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105 const KeyResolver* ChainingMetadataProvider::getKeyResolver() const
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107 // Check for a locked provider.
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108 void* ptr=m_tlsKey->getData();
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109 return ptr ? reinterpret_cast<MetadataProvider*>(ptr)->getKeyResolver() : NULL;
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113 const XMLObject* ChainingMetadataProvider::getMetadata() const
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115 throw XMLToolingException("getMetadata operation not implemented on this provider.");
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118 const EntitiesDescriptor* ChainingMetadataProvider::getEntitiesDescriptor(const char* name, bool requireValidMetadata) const
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120 // Clear any existing lock.
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121 const_cast<ChainingMetadataProvider*>(this)->unlock();
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124 const EntitiesDescriptor* ret=NULL;
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125 for (vector<MetadataProvider*>::const_iterator i=m_providers.begin(); i!=m_providers.end(); ++i) {
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127 if (ret=(*i)->getEntitiesDescriptor(name,requireValidMetadata)) {
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128 // Save locked provider.
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129 m_tlsKey->setData(*i);
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138 const EntityDescriptor* ChainingMetadataProvider::getEntityDescriptor(const char* id, bool requireValidMetadata) const
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140 // Clear any existing lock.
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141 const_cast<ChainingMetadataProvider*>(this)->unlock();
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144 const EntityDescriptor* ret=NULL;
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145 for (vector<MetadataProvider*>::const_iterator i=m_providers.begin(); i!=m_providers.end(); ++i) {
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147 if (ret=(*i)->getEntityDescriptor(id,requireValidMetadata)) {
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148 // Save locked provider.
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149 m_tlsKey->setData(*i);
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158 const EntityDescriptor* ChainingMetadataProvider::getEntityDescriptor(const SAMLArtifact* artifact) const
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160 // Clear any existing lock.
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161 const_cast<ChainingMetadataProvider*>(this)->unlock();
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164 const EntityDescriptor* ret=NULL;
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165 for (vector<MetadataProvider*>::const_iterator i=m_providers.begin(); i!=m_providers.end(); ++i) {
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167 if (ret=(*i)->getEntityDescriptor(artifact)) {
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168 // Save locked provider.
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169 m_tlsKey->setData(*i);
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