2 * Copyright 2001-2005 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 * ChainingMetadataProvider.cpp
20 * MetadataProvider that uses multiple providers in sequence.
24 #include "exceptions.h"
25 #include "saml2/metadata/ChainingMetadataProvider.h"
27 #include <xmltooling/util/XMLHelper.h>
28 #include <xercesc/util/XMLUniDefs.hpp>
30 using namespace opensaml::saml2md;
31 using namespace opensaml;
32 using namespace xmlsignature;
33 using namespace xmltooling;
38 MetadataProvider* SAML_DLLLOCAL ChainingMetadataProviderFactory(const DOMElement* const & e)
40 return new ChainingMetadataProvider(e);
45 static const XMLCh GenericMetadataProvider[] = UNICODE_LITERAL_16(M,e,t,a,d,a,t,a,P,r,o,v,i,d,e,r);
46 static const XMLCh type[] = UNICODE_LITERAL_4(t,y,p,e);
48 ChainingMetadataProvider::ChainingMetadataProvider(const DOMElement* e) : ObservableMetadataProvider(e), m_tlsKey(NULL)
51 e = e ? xmltooling::XMLHelper::getFirstChildElement(e, GenericMetadataProvider) : NULL;
53 auto_ptr_char temp(e->getAttributeNS(NULL,type));
55 auto_ptr<MetadataProvider> provider(
56 SAMLConfig::getConfig().MetadataProviderManager.newPlugin(temp.get(), e)
58 ObservableMetadataProvider* obs = dynamic_cast<ObservableMetadataProvider*>(provider.get());
60 obs->addObserver(this);
61 m_providers.push_back(provider.get());
64 e = XMLHelper::getNextSiblingElement(e, GenericMetadataProvider);
67 catch (XMLToolingException&) {
68 for_each(m_providers.begin(), m_providers.end(), xmltooling::cleanup<MetadataProvider>());
71 m_tlsKey = ThreadKey::create(NULL);
74 ChainingMetadataProvider::~ChainingMetadataProvider()
77 for_each(m_providers.begin(), m_providers.end(), xmltooling::cleanup<MetadataProvider>());
80 void ChainingMetadataProvider::onEvent(MetadataProvider& provider)
85 void ChainingMetadataProvider::init()
87 for_each(m_providers.begin(), m_providers.end(), mem_fun<void,MetadataProvider>(&MetadataProvider::init));
90 Lockable* ChainingMetadataProvider::lock()
92 return this; // we're not lockable ourselves...
95 void ChainingMetadataProvider::unlock()
97 // Check for a locked provider.
98 void* ptr=m_tlsKey->getData();
100 m_tlsKey->setData(NULL);
101 reinterpret_cast<MetadataProvider*>(ptr)->unlock();
105 const KeyResolver* ChainingMetadataProvider::getKeyResolver() const
107 // Check for a locked provider.
108 void* ptr=m_tlsKey->getData();
109 return ptr ? reinterpret_cast<MetadataProvider*>(ptr)->getKeyResolver() : NULL;
113 const XMLObject* ChainingMetadataProvider::getMetadata() const
115 throw XMLToolingException("getMetadata operation not implemented on this provider.");
118 const EntitiesDescriptor* ChainingMetadataProvider::getEntitiesDescriptor(const char* name, bool requireValidMetadata) const
120 // Clear any existing lock.
121 const_cast<ChainingMetadataProvider*>(this)->unlock();
124 const EntitiesDescriptor* ret=NULL;
125 for (vector<MetadataProvider*>::const_iterator i=m_providers.begin(); i!=m_providers.end(); ++i) {
127 if (ret=(*i)->getEntitiesDescriptor(name,requireValidMetadata)) {
128 // Save locked provider.
129 m_tlsKey->setData(*i);
138 const EntityDescriptor* ChainingMetadataProvider::getEntityDescriptor(const char* id, bool requireValidMetadata) const
140 // Clear any existing lock.
141 const_cast<ChainingMetadataProvider*>(this)->unlock();
144 const EntityDescriptor* ret=NULL;
145 for (vector<MetadataProvider*>::const_iterator i=m_providers.begin(); i!=m_providers.end(); ++i) {
147 if (ret=(*i)->getEntityDescriptor(id,requireValidMetadata)) {
148 // Save locked provider.
149 m_tlsKey->setData(*i);
158 const EntityDescriptor* ChainingMetadataProvider::getEntityDescriptor(const SAMLArtifact* artifact) const
160 // Clear any existing lock.
161 const_cast<ChainingMetadataProvider*>(this)->unlock();
164 const EntityDescriptor* ret=NULL;
165 for (vector<MetadataProvider*>::const_iterator i=m_providers.begin(); i!=m_providers.end(); ++i) {
167 if (ret=(*i)->getEntityDescriptor(artifact)) {
168 // Save locked provider.
169 m_tlsKey->setData(*i);