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 * XMLAttributeExtractor.cpp
20 * AttributeExtractor based on an XML mapping file.
24 #include "Application.h"
25 #include "ServiceProvider.h"
26 #include "attribute/AttributeDecoder.h"
27 #include "attribute/resolver/AttributeExtractor.h"
28 #include "util/SPConstants.h"
30 #include <saml/saml1/core/Assertions.h>
31 #include <saml/saml2/core/Assertions.h>
32 #include <saml/saml2/metadata/MetadataCredentialCriteria.h>
33 #include <xmltooling/util/NDC.h>
34 #include <xmltooling/util/ReloadableXMLFile.h>
35 #include <xmltooling/util/XMLHelper.h>
36 #include <xercesc/util/XMLUniDefs.hpp>
38 using namespace shibsp;
39 using namespace opensaml::saml2md;
40 using namespace opensaml;
41 using namespace xmltooling;
42 using namespace log4cpp;
44 using saml1::NameIdentifier;
46 using saml2::EncryptedAttribute;
50 #if defined (_MSC_VER)
51 #pragma warning( push )
52 #pragma warning( disable : 4250 )
55 class XMLExtractorImpl
58 XMLExtractorImpl(const DOMElement* e, Category& log);
60 for (attrmap_t::iterator i = m_attrMap.begin(); i!=m_attrMap.end(); ++i)
61 delete i->second.first;
63 m_document->release();
66 void setDocument(DOMDocument* doc) {
70 void extractAttributes(
71 const Application& application, const char* assertingParty, const NameIdentifier& nameid, multimap<string,Attribute*>& attributes
73 void extractAttributes(
74 const Application& application, const char* assertingParty, const NameID& nameid, multimap<string,Attribute*>& attributes
76 void extractAttributes(
77 const Application& application, const char* assertingParty, const saml1::Attribute& attr, multimap<string,Attribute*>& attributes
79 void extractAttributes(
80 const Application& application, const char* assertingParty, const saml2::Attribute& attr, multimap<string,Attribute*>& attributes
85 DOMDocument* m_document;
87 typedef map< pair<xstring,xstring>,pair<AttributeDecoder*,string> > attrmap_t;
89 typedef map< pair<string,string>,pair<AttributeDecoder*,string> > attrmap_t;
94 class XMLExtractor : public AttributeExtractor, public ReloadableXMLFile
97 XMLExtractor(const DOMElement* e) : ReloadableXMLFile(e, Category::getInstance(SHIBSP_LOGCAT".AttributeExtractor")), m_impl(NULL) {
104 void extractAttributes(
105 const Application& application, const RoleDescriptor* issuer, const XMLObject& xmlObject, multimap<string,Attribute*>& attributes
109 pair<bool,DOMElement*> load();
112 XMLExtractorImpl* m_impl;
115 #if defined (_MSC_VER)
116 #pragma warning( pop )
119 AttributeExtractor* SHIBSP_DLLLOCAL XMLAttributeExtractorFactory(const DOMElement* const & e)
121 return new XMLExtractor(e);
124 static const XMLCh _AttributeDecoder[] = UNICODE_LITERAL_16(A,t,t,r,i,b,u,t,e,D,e,c,o,d,e,r);
125 static const XMLCh Attributes[] = UNICODE_LITERAL_10(A,t,t,r,i,b,u,t,e,s);
126 static const XMLCh _id[] = UNICODE_LITERAL_2(i,d);
127 static const XMLCh _name[] = UNICODE_LITERAL_4(n,a,m,e);
128 static const XMLCh nameFormat[] = UNICODE_LITERAL_10(n,a,m,e,F,o,r,m,a,t);
131 void SHIBSP_API shibsp::registerAttributeExtractors()
133 SPConfig::getConfig().AttributeExtractorManager.registerFactory(XML_ATTRIBUTE_EXTRACTOR, XMLAttributeExtractorFactory);
136 XMLExtractorImpl::XMLExtractorImpl(const DOMElement* e, Category& log) : m_log(log), m_document(NULL)
139 xmltooling::NDC ndc("XMLExtractorImpl");
142 if (!XMLHelper::isNodeNamed(e, shibspconstants::SHIB2ATTRIBUTEMAP_NS, Attributes))
143 throw ConfigurationException("XML AttributeExtractor requires am:Attributes at root of configuration.");
145 DOMElement* child = XMLHelper::getFirstChildElement(e, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
147 // Check for missing name or id.
148 const XMLCh* name = child->getAttributeNS(NULL, _name);
149 if (!name || !*name) {
150 m_log.warn("skipping Attribute with no name");
151 child = XMLHelper::getNextSiblingElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
155 auto_ptr_char id(child->getAttributeNS(NULL, _id));
156 if (!id.get() || !*id.get()) {
157 m_log.warn("skipping Attribute with no id");
158 child = XMLHelper::getNextSiblingElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
162 AttributeDecoder* decoder=NULL;
164 DOMElement* dchild = XMLHelper::getFirstChildElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, _AttributeDecoder);
166 auto_ptr<QName> q(XMLHelper::getXSIType(dchild));
168 decoder = SPConfig::getConfig().AttributeDecoderManager.newPlugin(*q.get(), dchild);
171 decoder = SPConfig::getConfig().AttributeDecoderManager.newPlugin(StringAttributeDecoderType, NULL);
173 catch (exception& ex) {
174 m_log.error("skipping Attribute (%s), error building AttributeDecoder: %s", id.get(), ex.what());
178 child = XMLHelper::getNextSiblingElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
182 // Empty NameFormat implies the usual Shib URI naming defaults.
183 const XMLCh* format = child->getAttributeNS(NULL, nameFormat);
184 if (!format || XMLString::equals(format, shibspconstants::SHIB1_ATTRIBUTE_NAMESPACE_URI) ||
185 XMLString::equals(format, saml2::Attribute::URI_REFERENCE))
186 format = &chNull; // ignore default Format/Namespace values
188 // Fetch/create the map entry and see if it's a duplicate rule.
190 pair<AttributeDecoder*,string>& decl = m_attrMap[make_pair(name,format)];
192 auto_ptr_char n(name);
193 auto_ptr_char f(format);
194 pair<AttributeDecoder*,string>& decl = m_attrMap[make_pair(n.get(),f.get())];
197 m_log.warn("skipping duplicate Attribute mapping (same name and nameFormat)");
199 child = XMLHelper::getNextSiblingElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
203 if (m_log.isInfoEnabled()) {
205 auto_ptr_char n(name);
206 auto_ptr_char f(format);
208 m_log.info("creating mapping for Attribute %s%s%s", n.get(), *f.get() ? ", Format/Namespace:" : "", f.get());
211 decl.first = decoder;
212 decl.second = id.get();
214 child = XMLHelper::getNextSiblingElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
218 void XMLExtractorImpl::extractAttributes(
219 const Application& application, const char* assertingParty, const NameIdentifier& nameid, multimap<string,Attribute*>& attributes
223 map< pair<xstring,xstring>,pair<AttributeDecoder*,string> >::const_iterator rule;
225 map< pair<string,string>,pair<AttributeDecoder*,string> >::const_iterator rule;
228 const XMLCh* format = nameid.getFormat();
229 if (!format || !*format)
230 format = NameIdentifier::UNSPECIFIED;
232 if ((rule=m_attrMap.find(make_pair(format,xstring()))) != m_attrMap.end()) {
234 auto_ptr_char temp(format);
235 if ((rule=m_attrMap.find(make_pair(temp.get(),string()))) != m_attrMap.end()) {
240 rule->second.first->decode(rule->second.second.c_str(), &nameid, assertingParty, application.getString("entityID").second)
246 void XMLExtractorImpl::extractAttributes(
247 const Application& application, const char* assertingParty, const NameID& nameid, multimap<string,Attribute*>& attributes
251 map< pair<xstring,xstring>,pair<AttributeDecoder*,string> >::const_iterator rule;
253 map< pair<string,string>,pair<AttributeDecoder*,string> >::const_iterator rule;
256 const XMLCh* format = nameid.getFormat();
257 if (!format || !*format)
258 format = NameID::UNSPECIFIED;
260 if ((rule=m_attrMap.find(make_pair(format,xstring()))) != m_attrMap.end()) {
262 auto_ptr_char temp(format);
263 if ((rule=m_attrMap.find(make_pair(temp.get(),string()))) != m_attrMap.end()) {
268 rule->second.first->decode(rule->second.second.c_str(), &nameid, assertingParty, application.getString("entityID").second)
274 void XMLExtractorImpl::extractAttributes(
275 const Application& application, const char* assertingParty, const saml1::Attribute& attr, multimap<string,Attribute*>& attributes
279 map< pair<xstring,xstring>,pair<AttributeDecoder*,string> >::const_iterator rule;
281 map< pair<string,string>,pair<AttributeDecoder*,string> >::const_iterator rule;
284 const XMLCh* name = attr.getAttributeName();
285 const XMLCh* format = attr.getAttributeNamespace();
288 if (!format || XMLString::equals(format, shibspconstants::SHIB1_ATTRIBUTE_NAMESPACE_URI))
291 if ((rule=m_attrMap.find(make_pair(name,format))) != m_attrMap.end()) {
293 auto_ptr_char temp1(name);
294 auto_ptr_char temp2(format);
295 if ((rule=m_attrMap.find(make_pair(temp1.get(),temp2.get()))) != m_attrMap.end()) {
300 rule->second.first->decode(rule->second.second.c_str(), &attr, assertingParty, application.getString("entityID").second)
306 void XMLExtractorImpl::extractAttributes(
307 const Application& application, const char* assertingParty, const saml2::Attribute& attr, multimap<string,Attribute*>& attributes
311 map< pair<xstring,xstring>,pair<AttributeDecoder*,string> >::const_iterator rule;
313 map< pair<string,string>,pair<AttributeDecoder*,string> >::const_iterator rule;
316 const XMLCh* name = attr.getName();
317 const XMLCh* format = attr.getNameFormat();
320 if (!format || !*format)
321 format = saml2::Attribute::UNSPECIFIED;
322 else if (XMLString::equals(format, saml2::Attribute::URI_REFERENCE))
325 if ((rule=m_attrMap.find(make_pair(name,format))) != m_attrMap.end()) {
327 auto_ptr_char temp1(name);
328 auto_ptr_char temp2(format);
329 if ((rule=m_attrMap.find(make_pair(temp1.get(),temp2.get()))) != m_attrMap.end()) {
334 rule->second.first->decode(rule->second.second.c_str(), &attr, assertingParty, application.getString("entityID").second)
340 void XMLExtractor::extractAttributes(
341 const Application& application, const RoleDescriptor* issuer, const XMLObject& xmlObject, multimap<string,Attribute*>& attributes
344 // Check for assertions.
345 if (XMLString::equals(xmlObject.getElementQName().getLocalPart(), saml1::Assertion::LOCAL_NAME)) {
346 const saml2::Assertion* token2 = dynamic_cast<const saml2::Assertion*>(&xmlObject);
348 auto_ptr_char assertingParty(issuer ? dynamic_cast<const EntityDescriptor*>(issuer->getParent())->getEntityID() : NULL);
349 const vector<saml2::AttributeStatement*>& statements = token2->getAttributeStatements();
350 for (vector<saml2::AttributeStatement*>::const_iterator s = statements.begin(); s!=statements.end(); ++s) {
351 const vector<saml2::Attribute*>& attrs = const_cast<const saml2::AttributeStatement*>(*s)->getAttributes();
352 for (vector<saml2::Attribute*>::const_iterator a = attrs.begin(); a!=attrs.end(); ++a)
353 m_impl->extractAttributes(application, assertingParty.get(), *(*a), attributes);
355 const vector<saml2::EncryptedAttribute*>& encattrs = const_cast<const saml2::AttributeStatement*>(*s)->getEncryptedAttributes();
356 for (vector<saml2::EncryptedAttribute*>::const_iterator ea = encattrs.begin(); ea!=encattrs.end(); ++ea)
357 extractAttributes(application, issuer, *(*ea), attributes);
362 const saml1::Assertion* token1 = dynamic_cast<const saml1::Assertion*>(&xmlObject);
364 auto_ptr_char assertingParty(issuer ? dynamic_cast<const EntityDescriptor*>(issuer->getParent())->getEntityID() : NULL);
365 const vector<saml1::AttributeStatement*>& statements = token1->getAttributeStatements();
366 for (vector<saml1::AttributeStatement*>::const_iterator s = statements.begin(); s!=statements.end(); ++s) {
367 const vector<saml1::Attribute*>& attrs = const_cast<const saml1::AttributeStatement*>(*s)->getAttributes();
368 for (vector<saml1::Attribute*>::const_iterator a = attrs.begin(); a!=attrs.end(); ++a)
369 m_impl->extractAttributes(application, assertingParty.get(), *(*a), attributes);
374 throw AttributeExtractionException("Unable to extract attributes, unknown object type.");
377 // Check for attributes.
378 if (XMLString::equals(xmlObject.getElementQName().getLocalPart(), saml1::Attribute::LOCAL_NAME)) {
379 auto_ptr_char assertingParty(issuer ? dynamic_cast<const EntityDescriptor*>(issuer->getParent())->getEntityID() : NULL);
381 const saml2::Attribute* attr2 = dynamic_cast<const saml2::Attribute*>(&xmlObject);
383 return m_impl->extractAttributes(application, assertingParty.get(), *attr2, attributes);
385 const saml1::Attribute* attr1 = dynamic_cast<const saml1::Attribute*>(&xmlObject);
387 return m_impl->extractAttributes(application, assertingParty.get(), *attr1, attributes);
389 throw AttributeExtractionException("Unable to extract attributes, unknown object type.");
392 if (XMLString::equals(xmlObject.getElementQName().getLocalPart(), EncryptedAttribute::LOCAL_NAME)) {
393 const EncryptedAttribute* encattr = dynamic_cast<const EncryptedAttribute*>(&xmlObject);
395 const XMLCh* recipient = application.getXMLString("entityID").second;
396 CredentialResolver* cr = application.getCredentialResolver();
398 m_log.warn("found encrypted attribute, but no CredentialResolver was available");
403 Locker credlocker(cr);
405 MetadataCredentialCriteria mcc(*issuer);
406 auto_ptr<XMLObject> decrypted(encattr->decrypt(*cr, recipient, &mcc));
407 return extractAttributes(application, issuer, *(decrypted.get()), attributes);
410 auto_ptr<XMLObject> decrypted(encattr->decrypt(*cr, recipient));
411 return extractAttributes(application, issuer, *(decrypted.get()), attributes);
414 catch (exception& ex) {
415 m_log.error("caught exception decrypting Attribute: %s", ex.what());
421 // Check for NameIDs.
422 const NameID* name2 = dynamic_cast<const NameID*>(&xmlObject);
424 auto_ptr_char assertingParty(issuer ? dynamic_cast<const EntityDescriptor*>(issuer->getParent())->getEntityID() : NULL);
425 return m_impl->extractAttributes(application, assertingParty.get(), *name2, attributes);
428 const NameIdentifier* name1 = dynamic_cast<const NameIdentifier*>(&xmlObject);
430 auto_ptr_char assertingParty(issuer ? dynamic_cast<const EntityDescriptor*>(issuer->getParent())->getEntityID() : NULL);
431 return m_impl->extractAttributes(application, assertingParty.get(), *name1, attributes);
434 throw AttributeExtractionException("Unable to extract attributes, unknown object type.");
437 pair<bool,DOMElement*> XMLExtractor::load()
439 // Load from source using base class.
440 pair<bool,DOMElement*> raw = ReloadableXMLFile::load();
442 // If we own it, wrap it.
443 XercesJanitor<DOMDocument> docjanitor(raw.first ? raw.second->getOwnerDocument() : NULL);
445 XMLExtractorImpl* impl = new XMLExtractorImpl(raw.second, m_log);
447 // If we held the document, transfer it to the impl. If we didn't, it's a no-op.
448 impl->setDocument(docjanitor.release());
453 return make_pair(false,(DOMElement*)NULL);