shibsp/attribute/resolver/impl/XMLAttributeExtractor.cpp

   1 /**
   2  * Licensed to the University Corporation for Advanced Internet
   3  * Development, Inc. (UCAID) under one or more contributor license
   4  * agreements. See the NOTICE file distributed with this work for
   5  * additional information regarding copyright ownership.
   6  *
   7  * UCAID licenses this file to you under the Apache License,
   8  * Version 2.0 (the "License"); you may not use this file except
   9  * in compliance with the License. You may obtain a copy of the
  10  * License at
  11  *
  12  * http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing,
  15  * software distributed under the License is distributed on an
  16  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
  17  * either express or implied. See the License for the specific
  18  * language governing permissions and limitations under the License.
  19  */
  20
  21 /**
  22  * XMLAttributeExtractor.cpp
  23  *
  24  * AttributeExtractor based on an XML mapping file.
  25  */
  26
  27 #include "internal.h"
  28 #include "exceptions.h"
  29 #include "Application.h"
  30 #include "ServiceProvider.h"
  31 #include "attribute/Attribute.h"
  32 #include "attribute/AttributeDecoder.h"
  33 #include "attribute/filtering/AttributeFilter.h"
  34 #include "attribute/filtering/BasicFilteringContext.h"
  35 #include "attribute/resolver/AttributeExtractor.h"
  36 #include "remoting/ddf.h"
  37 #include "security/SecurityPolicy.h"
  38 #include "util/SPConstants.h"
  39
  40 #include <boost/bind.hpp>
  41 #include <boost/shared_ptr.hpp>
  42 #include <boost/algorithm/string.hpp>
  43 #include <boost/iterator/indirect_iterator.hpp>
  44 #include <boost/ptr_container/ptr_vector.hpp>
  45 #include <boost/tuple/tuple.hpp>
  46 #include <saml/SAMLConfig.h>
  47 #include <saml/saml1/core/Assertions.h>
  48 #include <saml/saml2/core/Assertions.h>
  49 #include <saml/saml2/metadata/Metadata.h>
  50 #include <saml/saml2/metadata/MetadataCredentialCriteria.h>
  51 #include <saml/saml2/metadata/ObservableMetadataProvider.h>
  52 #include <xmltooling/XMLToolingConfig.h>
  53 #include <xmltooling/security/TrustEngine.h>
  54 #include <xmltooling/util/NDC.h>
  55 #include <xmltooling/util/ReloadableXMLFile.h>
  56 #include <xmltooling/util/Threads.h>
  57 #include <xmltooling/util/XMLHelper.h>
  58 #include <xercesc/util/XMLUniDefs.hpp>
  59
  60 using namespace shibsp;
  61 using namespace opensaml::saml2md;
  62 using namespace opensaml;
  63 using namespace xmltooling;
  64 using namespace boost;
  65 using namespace std;
  66 using saml1::NameIdentifier;
  67 using saml2::NameID;
  68 using saml2::EncryptedAttribute;
  69
  70 namespace shibsp {
  71
  72 #if defined (_MSC_VER)
  73     #pragma warning( push )
  74     #pragma warning( disable : 4250 )
  75 #endif
  76
  77     class XMLExtractorImpl : public ObservableMetadataProvider::Observer
  78     {
  79     public:
  80         XMLExtractorImpl(const DOMElement* e, Category& log);
  81         ~XMLExtractorImpl() {
  82             for (map<const ObservableMetadataProvider*,decoded_t>::iterator i=m_decodedMap.begin(); i!=m_decodedMap.end(); ++i) {
  83                 i->first->removeObserver(this);
  84                 for (decoded_t::iterator attrs = i->second.begin(); attrs!=i->second.end(); ++attrs)
  85                     for_each(attrs->second.begin(), attrs->second.end(), mem_fun_ref<DDF&,DDF>(&DDF::destroy));
  86             }
  87             if (m_document)
  88                 m_document->release();
  89         }
  90
  91         void setDocument(DOMDocument* doc) {
  92             m_document = doc;
  93         }
  94
  95         void onEvent(const ObservableMetadataProvider& metadata) const {
  96             // Destroy attributes we cached from this provider.
  97             m_attrLock->wrlock();
  98             SharedLock wrapper(m_attrLock, false);
  99             decoded_t& d = m_decodedMap[&metadata];
 100             for (decoded_t::iterator a = d.begin(); a!=d.end(); ++a)
 101                 for_each(a->second.begin(), a->second.end(), mem_fun_ref<DDF&,DDF>(&DDF::destroy));
 102             d.clear();
 103         }
 104
 105         void extractAttributes(const Application&, const char*, const char*, const NameIdentifier&, ptr_vector<Attribute>&) const;
 106         void extractAttributes(const Application&, const char*, const char*, const NameID&, ptr_vector<Attribute>&) const;
 107         void extractAttributes(const Application&, const GenericRequest*, const char*, const char*, const saml1::Attribute&, ptr_vector<Attribute>&) const;
 108         void extractAttributes(const Application&, const GenericRequest*, const char*, const char*, const saml2::Attribute&, ptr_vector<Attribute>&) const;
 109         void extractAttributes(const Application&, const GenericRequest*, const char*, const char*, const saml1::AttributeStatement&, ptr_vector<Attribute>&) const;
 110         void extractAttributes(const Application&, const GenericRequest*, const char*, const char*, const saml2::AttributeStatement&, ptr_vector<Attribute>&) const;
 111         void extractAttributes(
 112             const Application&, const GenericRequest*, const ObservableMetadataProvider*, const XMLCh*, const char*, const Extensions&, ptr_vector<Attribute>&
 113             ) const;
 114
 115         void getAttributeIds(vector<string>& attributes) const {
 116             attributes.insert(attributes.end(), m_attributeIds.begin(), m_attributeIds.end());
 117         }
 118
 119         void generateMetadata(SPSSODescriptor& role) const;
 120
 121     private:
 122         Category& m_log;
 123         DOMDocument* m_document;
 124         typedef map< pair<xstring,xstring>,pair< boost::shared_ptr<AttributeDecoder>,vector<string> > > attrmap_t;
 125         attrmap_t m_attrMap;
 126         vector<string> m_attributeIds;
 127         vector< tuple<xstring,xstring,bool> > m_requestedAttrs;
 128
 129         // settings for embedded assertions in metadata
 130         string m_policyId;
 131         scoped_ptr<AttributeFilter> m_filter;
 132         scoped_ptr<MetadataProvider> m_metadata;
 133         scoped_ptr<TrustEngine> m_trust;
 134         bool m_entityAssertions,m_metaAttrCaching;
 135
 136         // manages caching of decoded Attributes
 137         scoped_ptr<RWLock> m_attrLock;
 138         typedef map< const EntityAttributes*,vector<DDF> > decoded_t;
 139         mutable map<const ObservableMetadataProvider*,decoded_t> m_decodedMap;
 140     };
 141
 142     class XMLExtractor : public AttributeExtractor, public ReloadableXMLFile
 143     {
 144     public:
 145         XMLExtractor(const DOMElement* e) : ReloadableXMLFile(e, Category::getInstance(SHIBSP_LOGCAT ".AttributeExtractor.XML")) {
 146             if (m_local && m_lock)
 147                 m_log.warn("attribute mappings are reloadable; be sure to restart web server when adding new attribute IDs");
 148             background_load();
 149         }
 150         ~XMLExtractor() {
 151             shutdown();
 152         }
 153
 154         // deprecated method
 155         void extractAttributes(
 156             const Application& application, const RoleDescriptor* issuer, const XMLObject& xmlObject, vector<Attribute*>& attributes
 157             ) const {
 158             extractAttributes(application, nullptr, issuer, xmlObject, attributes);
 159         }
 160
 161         void extractAttributes(const Application&, const GenericRequest*, const RoleDescriptor*, const XMLObject&, vector<Attribute*>&) const;
 162
 163         void getAttributeIds(std::vector<std::string>& attributes) const {
 164             if (m_impl)
 165                 m_impl->getAttributeIds(attributes);
 166         }
 167
 168         void generateMetadata(SPSSODescriptor& role) const {
 169             if (m_impl)
 170                 m_impl->generateMetadata(role);
 171         }
 172
 173     protected:
 174         pair<bool,DOMElement*> background_load();
 175
 176     private:
 177         scoped_ptr<XMLExtractorImpl> m_impl;
 178
 179         void extractAttributes(const Application&, const GenericRequest*, const RoleDescriptor*, const XMLObject&, ptr_vector<Attribute>&) const;
 180     };
 181
 182 #if defined (_MSC_VER)
 183     #pragma warning( pop )
 184 #endif
 185
 186     AttributeExtractor* SHIBSP_DLLLOCAL XMLAttributeExtractorFactory(const DOMElement* const & e)
 187     {
 188         return new XMLExtractor(e);
 189     }
 190
 191     static const XMLCh _aliases[] =                 UNICODE_LITERAL_7(a,l,i,a,s,e,s);
 192     static const XMLCh _AttributeDecoder[] =        UNICODE_LITERAL_16(A,t,t,r,i,b,u,t,e,D,e,c,o,d,e,r);
 193     static const XMLCh _AttributeFilter[] =         UNICODE_LITERAL_15(A,t,t,r,i,b,u,t,e,F,i,l,t,e,r);
 194     static const XMLCh Attributes[] =               UNICODE_LITERAL_10(A,t,t,r,i,b,u,t,e,s);
 195     static const XMLCh _id[] =                      UNICODE_LITERAL_2(i,d);
 196     static const XMLCh isRequested[] =              UNICODE_LITERAL_11(i,s,R,e,q,u,e,s,t,e,d);
 197     static const XMLCh _MetadataProvider[] =        UNICODE_LITERAL_16(M,e,t,a,d,a,t,a,P,r,o,v,i,d,e,r);
 198     static const XMLCh metadataAttributeCaching[] = UNICODE_LITERAL_24(m,e,t,a,d,a,t,a,A,t,t,r,i,b,u,t,e,C,a,c,h,i,n,g);
 199     static const XMLCh metadataPolicyId[] =         UNICODE_LITERAL_16(m,e,t,a,d,a,t,a,P,o,l,i,c,y,I,d);
 200     static const XMLCh _name[] =                    UNICODE_LITERAL_4(n,a,m,e);
 201     static const XMLCh nameFormat[] =               UNICODE_LITERAL_10(n,a,m,e,F,o,r,m,a,t);
 202     static const XMLCh _TrustEngine[] =             UNICODE_LITERAL_11(T,r,u,s,t,E,n,g,i,n,e);
 203     static const XMLCh _type[] =                    UNICODE_LITERAL_4(t,y,p,e);
 204 };
 205
 206 XMLExtractorImpl::XMLExtractorImpl(const DOMElement* e, Category& log)
 207     : m_log(log),
 208         m_document(nullptr),
 209         m_policyId(XMLHelper::getAttrString(e, nullptr, metadataPolicyId)),
 210         m_entityAssertions(true),
 211         m_metaAttrCaching(XMLHelper::getAttrBool(e, true, metadataAttributeCaching))
 212 {
 213 #ifdef _DEBUG
 214     xmltooling::NDC ndc("XMLExtractorImpl");
 215 #endif
 216
 217     if (!XMLHelper::isNodeNamed(e, shibspconstants::SHIB2ATTRIBUTEMAP_NS, Attributes))
 218         throw ConfigurationException("XML AttributeExtractor requires am:Attributes at root of configuration.");
 219
 220     DOMElement* child = XMLHelper::getFirstChildElement(e, shibspconstants::SHIB2ATTRIBUTEMAP_NS, _MetadataProvider);
 221     if (child) {
 222         try {
 223             string t(XMLHelper::getAttrString(child, nullptr, _type));
 224             if (t.empty())
 225                 throw ConfigurationException("MetadataProvider element missing type attribute.");
 226             m_log.info("building MetadataProvider of type %s...", t.c_str());
 227             m_metadata.reset(SAMLConfig::getConfig().MetadataProviderManager.newPlugin(t.c_str(), child));
 228             m_metadata->init();
 229         }
 230         catch (std::exception& ex) {
 231             m_metadata.reset();
 232             m_entityAssertions = false;
 233             m_log.crit("error building/initializing dedicated MetadataProvider: %s", ex.what());
 234             m_log.crit("disabling support for Assertions in EntityAttributes extension");
 235         }
 236     }
 237
 238     if (m_entityAssertions) {
 239         child = XMLHelper::getFirstChildElement(e, shibspconstants::SHIB2ATTRIBUTEMAP_NS, _TrustEngine);
 240         if (child) {
 241             try {
 242                 string t(XMLHelper::getAttrString(child, nullptr, _type));
 243                 if (t.empty())
 244                     throw ConfigurationException("TrustEngine element missing type attribute.");
 245                 m_log.info("building TrustEngine of type %s...", t.c_str());
 246                 m_trust.reset(XMLToolingConfig::getConfig().TrustEngineManager.newPlugin(t.c_str(), child));
 247             }
 248             catch (std::exception& ex) {
 249                 m_entityAssertions = false;
 250                 m_log.crit("error building/initializing dedicated TrustEngine: %s", ex.what());
 251                 m_log.crit("disabling support for Assertions in EntityAttributes extension");
 252             }
 253         }
 254     }
 255
 256     if (m_entityAssertions) {
 257         child = XMLHelper::getFirstChildElement(e, shibspconstants::SHIB2ATTRIBUTEMAP_NS, _AttributeFilter);
 258         if (child) {
 259             try {
 260                 string t(XMLHelper::getAttrString(child, nullptr, _type));
 261                 if (t.empty())
 262                     throw ConfigurationException("AttributeFilter element missing type attribute.");
 263                 m_log.info("building AttributeFilter of type %s...", t.c_str());
 264                 m_filter.reset(SPConfig::getConfig().AttributeFilterManager.newPlugin(t.c_str(), child));
 265             }
 266             catch (std::exception& ex) {
 267                 m_entityAssertions = false;
 268                 m_log.crit("error building/initializing dedicated AttributeFilter: %s", ex.what());
 269                 m_log.crit("disabling support for Assertions in EntityAttributes extension");
 270             }
 271         }
 272     }
 273
 274     child = XMLHelper::getFirstChildElement(e, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
 275     while (child) {
 276         // Check for missing name or id.
 277         const XMLCh* name = child->getAttributeNS(nullptr, _name);
 278         if (!name || !*name) {
 279             m_log.warn("skipping Attribute with no name");
 280             child = XMLHelper::getNextSiblingElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
 281             continue;
 282         }
 283
 284         auto_ptr_char id(child->getAttributeNS(nullptr, _id));
 285         if (!id.get() || !*id.get()) {
 286             m_log.warn("skipping Attribute with no id");
 287             child = XMLHelper::getNextSiblingElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
 288             continue;
 289         }
 290         else if (!strcmp(id.get(), "REMOTE_USER")) {
 291             m_log.warn("skipping Attribute, id of REMOTE_USER is a reserved name");
 292             child = XMLHelper::getNextSiblingElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
 293             continue;
 294         }
 295
 296         boost::shared_ptr<AttributeDecoder> decoder;
 297         try {
 298             DOMElement* dchild = XMLHelper::getFirstChildElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, _AttributeDecoder);
 299             if (dchild) {
 300                 auto_ptr<xmltooling::QName> q(XMLHelper::getXSIType(dchild));
 301                 if (q.get())
 302                     decoder.reset(SPConfig::getConfig().AttributeDecoderManager.newPlugin(*q.get(), dchild));
 303             }
 304             if (!decoder)
 305                 decoder.reset(SPConfig::getConfig().AttributeDecoderManager.newPlugin(StringAttributeDecoderType, nullptr));
 306         }
 307         catch (std::exception& ex) {
 308             m_log.error("skipping Attribute (%s), error building AttributeDecoder: %s", id.get(), ex.what());
 309         }
 310
 311         if (!decoder) {
 312             child = XMLHelper::getNextSiblingElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
 313             continue;
 314         }
 315
 316         // Empty NameFormat implies the usual Shib URI naming defaults.
 317         const XMLCh* format = child->getAttributeNS(nullptr, nameFormat);
 318         if (!format || XMLString::equals(format, shibspconstants::SHIB1_ATTRIBUTE_NAMESPACE_URI) ||
 319                 XMLString::equals(format, saml2::Attribute::URI_REFERENCE))
 320             format = &chNull;  // ignore default Format/Namespace values
 321
 322         // Fetch/create the map entry and see if it's a duplicate rule.
 323         pair< boost::shared_ptr<AttributeDecoder>,vector<string> >& decl = m_attrMap[pair<xstring,xstring>(name,format)];
 324         if (decl.first) {
 325             m_log.warn("skipping duplicate Attribute mapping (same name and nameFormat)");
 326             child = XMLHelper::getNextSiblingElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
 327             continue;
 328         }
 329
 330         if (m_log.isInfoEnabled()) {
 331             auto_ptr_char n(name);
 332             auto_ptr_char f(format);
 333             m_log.info("creating mapping for Attribute %s%s%s", n.get(), *f.get() ? ", Format/Namespace:" : "", f.get());
 334         }
 335
 336         decl.first = decoder;
 337         decl.second.push_back(id.get());
 338         m_attributeIds.push_back(id.get());
 339
 340         // Check for isRequired/isRequested.
 341         bool requested = XMLHelper::getAttrBool(child, false, isRequested);
 342         bool required = XMLHelper::getAttrBool(child, false, RequestedAttribute::ISREQUIRED_ATTRIB_NAME);
 343         if (required || requested)
 344             m_requestedAttrs.push_back(tuple<xstring,xstring,bool>(name,format,required));
 345
 346         name = child->getAttributeNS(nullptr, _aliases);
 347         if (name && *name) {
 348             m_log.warn("attribute mapping rule (%s) uses deprecated aliases feature, consider revising", id.get());
 349             auto_ptr_char aliases(name);
 350             string dup(aliases.get());
 351             trim(dup);
 352             set<string> new_aliases;
 353             split(new_aliases, dup, is_space(), algorithm::token_compress_on);
 354             set<string>::iterator ru = new_aliases.find("REMOTE_USER");
 355             if (ru != new_aliases.end()) {
 356                 m_log.warn("skipping alias, REMOTE_USER is a reserved name");
 357                 new_aliases.erase(ru);
 358             }
 359             decl.second.insert(decl.second.end(), new_aliases.begin(), new_aliases.end());
 360             m_attributeIds.insert(m_attributeIds.end(), new_aliases.begin(), new_aliases.end());
 361         }
 362
 363         child = XMLHelper::getNextSiblingElement(child, shibspconstants::SHIB2ATTRIBUTEMAP_NS, saml1::Attribute::LOCAL_NAME);
 364     }
 365
 366     if (m_metaAttrCaching)
 367         m_attrLock.reset(RWLock::create());
 368 }
 369
 370 void XMLExtractorImpl::generateMetadata(SPSSODescriptor& role) const
 371 {
 372     if (m_requestedAttrs.empty())
 373         return;
 374     int index = 1;
 375     const vector<AttributeConsumingService*>& svcs = const_cast<const SPSSODescriptor*>(&role)->getAttributeConsumingServices();
 376     for (vector<AttributeConsumingService*>::const_iterator s =svcs.begin(); s != svcs.end(); ++s) {
 377         pair<bool,int> i = (*s)->getIndex();
 378         if (i.first && index == i.second)
 379             index = i.second + 1;
 380     }
 381     AttributeConsumingService* svc = AttributeConsumingServiceBuilder::buildAttributeConsumingService();
 382     role.getAttributeConsumingServices().push_back(svc);
 383     svc->setIndex(index);
 384     ServiceName* sn = ServiceNameBuilder::buildServiceName();
 385     svc->getServiceNames().push_back(sn);
 386     sn->setName(dynamic_cast<EntityDescriptor*>(role.getParent())->getEntityID());
 387     static const XMLCh english[] = UNICODE_LITERAL_2(e,n);
 388     sn->setLang(english);
 389
 390     for (vector< tuple<xstring,xstring,bool> >::const_iterator i = m_requestedAttrs.begin(); i != m_requestedAttrs.end(); ++i) {
 391         RequestedAttribute* req = RequestedAttributeBuilder::buildRequestedAttribute();
 392         svc->getRequestedAttributes().push_back(req);
 393         req->setName(i->get<0>().c_str());
 394         if (i->get<1>().empty())
 395             req->setNameFormat(saml2::Attribute::URI_REFERENCE);
 396         else
 397             req->setNameFormat(i->get<1>().c_str());
 398         if (i->get<2>())
 399             req->isRequired(true);
 400     }
 401 }
 402
 403 void XMLExtractorImpl::extractAttributes(
 404     const Application& application,
 405     const char* assertingParty,
 406     const char* relyingParty,
 407     const NameIdentifier& nameid,
 408     ptr_vector<Attribute>& attributes
 409     ) const
 410 {
 411     const XMLCh* format = nameid.getFormat();
 412     if (!format || !*format)
 413         format = NameIdentifier::UNSPECIFIED;
 414     attrmap_t::const_iterator rule;
 415     if ((rule = m_attrMap.find(pair<xstring,xstring>(format,xstring()))) != m_attrMap.end()) {
 416         auto_ptr<Attribute> a(rule->second.first->decode(nullptr, rule->second.second, &nameid, assertingParty, relyingParty));
 417         if (a.get()) {
 418             attributes.push_back(a.get());
 419             a.release();
 420         }
 421     }
 422     else if (m_log.isDebugEnabled()) {
 423         auto_ptr_char temp(format);
 424         m_log.debug("skipping unmapped NameIdentifier with format (%s)", temp.get());
 425     }
 426 }
 427
 428 void XMLExtractorImpl::extractAttributes(
 429     const Application& application,
 430     const char* assertingParty,
 431     const char* relyingParty,
 432     const NameID& nameid,
 433     ptr_vector<Attribute>& attributes
 434     ) const
 435 {
 436     const XMLCh* format = nameid.getFormat();
 437     if (!format || !*format)
 438         format = NameID::UNSPECIFIED;
 439     attrmap_t::const_iterator rule;
 440     if ((rule = m_attrMap.find(pair<xstring,xstring>(format,xstring()))) != m_attrMap.end()) {
 441         auto_ptr<Attribute> a(rule->second.first->decode(nullptr, rule->second.second, &nameid, assertingParty, relyingParty));
 442         if (a.get()) {
 443             attributes.push_back(a.get());
 444             a.release();
 445         }
 446     }
 447     else if (m_log.isDebugEnabled()) {
 448         auto_ptr_char temp(format);
 449         m_log.debug("skipping unmapped NameID with format (%s)", temp.get());
 450     }
 451 }
 452
 453 void XMLExtractorImpl::extractAttributes(
 454     const Application& application,
 455     const GenericRequest* request,
 456     const char* assertingParty,
 457     const char* relyingParty,
 458     const saml1::Attribute& attr,
 459     ptr_vector<Attribute>& attributes
 460     ) const
 461 {
 462     const XMLCh* name = attr.getAttributeName();
 463     const XMLCh* format = attr.getAttributeNamespace();
 464     if (!name || !*name)
 465         return;
 466     if (!format || XMLString::equals(format, shibspconstants::SHIB1_ATTRIBUTE_NAMESPACE_URI))
 467         format = &chNull;
 468     attrmap_t::const_iterator rule;
 469     if ((rule = m_attrMap.find(pair<xstring,xstring>(name,format))) != m_attrMap.end()) {
 470         auto_ptr<Attribute> a(rule->second.first->decode(request, rule->second.second, &attr, assertingParty, relyingParty));
 471         if (a.get()) {
 472             attributes.push_back(a.get());
 473             a.release();
 474         }
 475     }
 476     else if (m_log.isInfoEnabled()) {
 477         auto_ptr_char temp1(name);
 478         auto_ptr_char temp2(format);
 479         m_log.info("skipping unmapped SAML 1.x Attribute with Name: %s%s%s", temp1.get(), *temp2.get() ? ", Namespace:" : "", temp2.get());
 480     }
 481 }
 482
 483 void XMLExtractorImpl::extractAttributes(
 484     const Application& application,
 485     const GenericRequest* request,
 486     const char* assertingParty,
 487     const char* relyingParty,
 488     const saml2::Attribute& attr,
 489     ptr_vector<Attribute>& attributes
 490     ) const
 491 {
 492     const XMLCh* name = attr.getName();
 493     const XMLCh* format = attr.getNameFormat();
 494     if (!name || !*name)
 495         return;
 496     if (!format || !*format)
 497         format = saml2::Attribute::UNSPECIFIED;
 498     else if (XMLString::equals(format, saml2::Attribute::URI_REFERENCE))
 499         format = &chNull;
 500     attrmap_t::const_iterator rule;
 501     if ((rule = m_attrMap.find(pair<xstring,xstring>(name,format))) != m_attrMap.end()) {
 502         auto_ptr<Attribute> a(rule->second.first->decode(request, rule->second.second, &attr, assertingParty, relyingParty));
 503         if (a.get()) {
 504             attributes.push_back(a.get());
 505             a.release();
 506             return;
 507         }
 508     }
 509     else if (XMLString::equals(format, saml2::Attribute::UNSPECIFIED)) {
 510         // As a fallback, if the format is "unspecified", null out the value and re-map.
 511         if ((rule = m_attrMap.find(pair<xstring,xstring>(name,xstring()))) != m_attrMap.end()) {
 512             auto_ptr<Attribute> a(rule->second.first->decode(request, rule->second.second, &attr, assertingParty, relyingParty));
 513             if (a.get()) {
 514                 attributes.push_back(a.get());
 515                 a.release();
 516                 return;
 517             }
 518         }
 519     }
 520
 521     if (m_log.isInfoEnabled()) {
 522         auto_ptr_char temp1(name);
 523         auto_ptr_char temp2(format);
 524         m_log.info("skipping unmapped SAML 2.0 Attribute with Name: %s%s%s", temp1.get(), *temp2.get() ? ", Format:" : "", temp2.get());
 525     }
 526 }
 527
 528 void XMLExtractorImpl::extractAttributes(
 529     const Application& application,
 530     const GenericRequest* request,
 531     const char* assertingParty,
 532     const char* relyingParty,
 533     const saml1::AttributeStatement& statement,
 534     ptr_vector<Attribute>& attributes
 535     ) const
 536 {
 537     static void (XMLExtractorImpl::* extract)(
 538         const Application&, const GenericRequest*, const char*, const char*, const saml1::Attribute&, ptr_vector<Attribute>&
 539         ) const = &XMLExtractorImpl::extractAttributes;
 540     for_each(
 541         make_indirect_iterator(statement.getAttributes().begin()), make_indirect_iterator(statement.getAttributes().end()),
 542         boost::bind(extract, this, boost::cref(application), request, assertingParty, relyingParty, _1, boost::ref(attributes))
 543         );
 544 }
 545
 546 void XMLExtractorImpl::extractAttributes(
 547     const Application& application,
 548     const GenericRequest* request,
 549     const char* assertingParty,
 550     const char* relyingParty,
 551     const saml2::AttributeStatement& statement,
 552     ptr_vector<Attribute>& attributes
 553     ) const
 554 {
 555     static void (XMLExtractorImpl::* extract)(
 556         const Application&, const GenericRequest*, const char*, const char*, const saml2::Attribute&, ptr_vector<Attribute>&
 557         ) const = &XMLExtractorImpl::extractAttributes;
 558     for_each(
 559         make_indirect_iterator(statement.getAttributes().begin()), make_indirect_iterator(statement.getAttributes().end()),
 560         boost::bind(extract, this, boost::cref(application), request, assertingParty, relyingParty, _1, boost::ref(attributes))
 561         );
 562 }
 563
 564 void XMLExtractorImpl::extractAttributes(
 565     const Application& application,
 566     const GenericRequest* request,
 567     const ObservableMetadataProvider* observable,
 568     const XMLCh* entityID,
 569     const char* relyingParty,
 570     const Extensions& ext,
 571     ptr_vector<Attribute>& attributes
 572     ) const
 573 {
 574     const vector<XMLObject*>& exts = ext.getUnknownXMLObjects();
 575     for (vector<XMLObject*>::const_iterator i = exts.begin(); i != exts.end(); ++i) {
 576         const EntityAttributes* container = dynamic_cast<const EntityAttributes*>(*i);
 577         if (!container)
 578             continue;
 579
 580         bool useCache = false;
 581         map<const ObservableMetadataProvider*,decoded_t>::iterator cacheEntry;
 582
 583         // Check for cached result.
 584         if (observable && m_metaAttrCaching) {
 585             m_attrLock->rdlock();
 586             cacheEntry = m_decodedMap.find(observable);
 587             if (cacheEntry == m_decodedMap.end()) {
 588                 // We need to elevate the lock and retry.
 589                 m_attrLock->unlock();
 590                 m_attrLock->wrlock();
 591                 cacheEntry = m_decodedMap.find(observable);
 592                 if (cacheEntry == m_decodedMap.end()) {
 593                     SharedLock locker(m_attrLock, false);   // guard in case these throw
 594
 595                     // It's still brand new, so hook it for cache activation.
 596                     observable->addObserver(this);
 597
 598                     // Prime the map reference with an empty decoded map.
 599                     cacheEntry = m_decodedMap.insert(make_pair(observable,decoded_t())).first;
 600
 601                     // Downgrade the lock.
 602                     // We don't have to recheck because we never erase the master map entry entirely, even on changes.
 603                     locker.release();   // unguard for lock downgrade
 604                     m_attrLock->unlock();
 605                     m_attrLock->rdlock();
 606                 }
 607             }
 608             useCache = true;
 609         }
 610
 611         if (useCache) {
 612             // We're holding the lock, so check the cache.
 613             decoded_t::iterator d = cacheEntry->second.find(container);
 614             if (d != cacheEntry->second.end()) {
 615                 SharedLock locker(m_attrLock, false);   // pop the lock when we're done
 616                 for (vector<DDF>::iterator obj = d->second.begin(); obj != d->second.end(); ++obj) {
 617                     auto_ptr<Attribute> wrapper(Attribute::unmarshall(*obj));
 618                     m_log.debug("recovered cached metadata attribute (%s)", wrapper->getId());
 619                     attributes.push_back(wrapper.get());
 620                     wrapper.release();
 621                 }
 622                 break;
 623             }
 624         }
 625
 626         // Add a guard for the lock if we're caching.
 627         SharedLock locker(useCache ? m_attrLock.get() : nullptr, false);
 628
 629         // Use a holding area to support caching.
 630         ptr_vector<Attribute> holding;
 631
 632         // Extract attributes into holding area with no asserting party set.
 633         static void (XMLExtractorImpl::* extractV2Attr)(
 634             const Application&, const GenericRequest*, const char*, const char*, const saml2::Attribute&, ptr_vector<Attribute>&
 635             ) const = &XMLExtractorImpl::extractAttributes;
 636         for_each(
 637             make_indirect_iterator(container->getAttributes().begin()), make_indirect_iterator(container->getAttributes().end()),
 638             boost::bind(extractV2Attr, this, boost::ref(application), request, (const char*)nullptr, relyingParty, _1, boost::ref(holding))
 639             );
 640
 641         if (entityID && m_entityAssertions) {
 642             const vector<saml2::Assertion*>& asserts = container->getAssertions();
 643             for (indirect_iterator<vector<saml2::Assertion*>::const_iterator> assert = make_indirect_iterator(asserts.begin());
 644                     assert != make_indirect_iterator(asserts.end()); ++assert) {
 645                 if (!(assert->getSignature())) {
 646                     if (m_log.isDebugEnabled()) {
 647                         auto_ptr_char eid(entityID);
 648                         m_log.debug("skipping unsigned assertion in metadata extension for entity (%s)", eid.get());
 649                     }
 650                     continue;
 651                 }
 652                 else if (assert->getAttributeStatements().empty()) {
 653                     if (m_log.isDebugEnabled()) {
 654                         auto_ptr_char eid(entityID);
 655                         m_log.debug("skipping assertion with no AttributeStatement in metadata extension for entity (%s)", eid.get());
 656                     }
 657                     continue;
 658                 }
 659                 else {
 660                     // Check subject.
 661                     const NameID* subject = assert->getSubject() ? assert->getSubject()->getNameID() : nullptr;
 662                     if (!subject ||
 663                             !XMLString::equals(subject->getFormat(), NameID::ENTITY) ||
 664                             !XMLString::equals(subject->getName(), entityID)) {
 665                         if (m_log.isDebugEnabled()) {
 666                             auto_ptr_char eid(entityID);
 667                             m_log.debug("skipping assertion with improper Subject in metadata extension for entity (%s)", eid.get());
 668                         }
 669                         continue;
 670                     }
 671                 }
 672
 673                 try {
 674                     // Set up and evaluate a policy for an AA asserting attributes to us.
 675                     shibsp::SecurityPolicy policy(application, &AttributeAuthorityDescriptor::ELEMENT_QNAME, false, m_policyId.c_str());
 676                     Locker locker(m_metadata.get());
 677                     if (m_metadata)
 678                         policy.setMetadataProvider(m_metadata.get());
 679                     if (m_trust)
 680                         policy.setTrustEngine(m_trust.get());
 681                     // Populate recipient as audience.
 682                     const XMLCh* issuer = assert->getIssuer() ? assert->getIssuer()->getName() : nullptr;
 683                     policy.getAudiences().push_back(application.getRelyingParty(issuer)->getXMLString("entityID").second);
 684
 685                     // Extract assertion information for policy.
 686                     policy.setMessageID(assert->getID());
 687                     policy.setIssueInstant(assert->getIssueInstantEpoch());
 688                     policy.setIssuer(assert->getIssuer());
 689
 690                     // Look up metadata for issuer.
 691                     if (policy.getIssuer() && policy.getMetadataProvider()) {
 692                         if (policy.getIssuer()->getFormat() && !XMLString::equals(policy.getIssuer()->getFormat(), saml2::NameIDType::ENTITY)) {
 693                             m_log.debug("non-system entity issuer, skipping metadata lookup");
 694                         }
 695                         else {
 696                             m_log.debug("searching metadata for entity assertion issuer...");
 697                             pair<const EntityDescriptor*,const RoleDescriptor*> lookup;
 698                             MetadataProvider::Criteria& mc = policy.getMetadataProviderCriteria();
 699                             mc.entityID_unicode = policy.getIssuer()->getName();
 700                             mc.role = &AttributeAuthorityDescriptor::ELEMENT_QNAME;
 701                             mc.protocol = samlconstants::SAML20P_NS;
 702                             lookup = policy.getMetadataProvider()->getEntityDescriptor(mc);
 703                             if (!lookup.first) {
 704                                 auto_ptr_char iname(policy.getIssuer()->getName());
 705                                 m_log.debug("no metadata found, can't establish identity of issuer (%s)", iname.get());
 706                             }
 707                             else if (!lookup.second) {
 708                                 m_log.debug("unable to find compatible AA role in metadata");
 709                             }
 710                             else {
 711                                 policy.setIssuerMetadata(lookup.second);
 712                             }
 713                         }
 714                     }
 715
 716                     // Authenticate the assertion. We have to clone and marshall it to establish the signature for verification.
 717                     scoped_ptr<saml2::Assertion> tokencopy(assert->cloneAssertion());
 718                     tokencopy->marshall();
 719                     policy.evaluate(*tokencopy);
 720                     if (!policy.isAuthenticated()) {
 721                         if (m_log.isDebugEnabled()) {
 722                             auto_ptr_char tempid(tokencopy->getID());
 723                             auto_ptr_char eid(entityID);
 724                             m_log.debug(
 725                                 "failed to authenticate assertion (%s) in metadata extension for entity (%s)", tempid.get(), eid.get()
 726                                 );
 727                         }
 728                         continue;
 729                     }
 730
 731                     // Override the asserting/relying party names based on this new issuer.
 732                     const EntityDescriptor* inlineEntity =
 733                         policy.getIssuerMetadata() ? dynamic_cast<const EntityDescriptor*>(policy.getIssuerMetadata()->getParent()) : nullptr;
 734                     auto_ptr_char inlineAssertingParty(inlineEntity ? inlineEntity->getEntityID() : nullptr);
 735                     relyingParty = application.getRelyingParty(inlineEntity)->getString("entityID").second;
 736
 737                     // Use a private holding area for filtering purposes.
 738                     ptr_vector<Attribute> holding2;
 739                     const vector<saml2::Attribute*>& attrs2 =
 740                         const_cast<const saml2::AttributeStatement*>(tokencopy->getAttributeStatements().front())->getAttributes();
 741                     for_each(
 742                         make_indirect_iterator(attrs2.begin()), make_indirect_iterator(attrs2.end()),
 743                         boost::bind(extractV2Attr, this, boost::ref(application), request, inlineAssertingParty.get(), relyingParty, _1, boost::ref(holding2))
 744                         );
 745
 746                     // Now we locally filter the attributes so that the actual issuer can be properly set.
 747                     // If we relied on outside filtering, the attributes couldn't be distinguished from the
 748                     // ones that come from the user's IdP.
 749                     if (m_filter && !holding2.empty()) {
 750
 751                         // The filter API uses an unsafe container, so we have to transfer everything into one and back.
 752                         vector<Attribute*> unsafe_holding2;
 753
 754                         // Use a local exception context since the container is unsafe.
 755                         try {
 756                             while (!holding2.empty()) {
 757                                 ptr_vector<Attribute>::auto_type ptr = holding2.pop_back();
 758                                 unsafe_holding2.push_back(ptr.get());
 759                                 ptr.release();
 760                             }
 761                             BasicFilteringContext fc(application, unsafe_holding2, policy.getIssuerMetadata());
 762                             Locker filtlocker(m_filter.get());
 763                             m_filter->filterAttributes(fc, unsafe_holding2);
 764
 765                             // Transfer back to safe container
 766                             while (!unsafe_holding2.empty()) {
 767                                 auto_ptr<Attribute> ptr(unsafe_holding2.back());
 768                                 unsafe_holding2.pop_back();
 769                                 holding2.push_back(ptr.get());
 770                                 ptr.release();
 771                             }
 772                         }
 773                         catch (std::exception& ex) {
 774                             m_log.error("caught exception filtering attributes: %s", ex.what());
 775                             m_log.error("dumping extracted attributes due to filtering exception");
 776                             for_each(unsafe_holding2.begin(), unsafe_holding2.end(), xmltooling::cleanup<Attribute>());
 777                             holding2.clear();   // in case the exception was during transfer between containers
 778                         }
 779                     }
 780
 781                     if (!holding2.empty()) {
 782                         // Copy them over to the main holding tank, which transfers ownership.
 783                         holding.transfer(holding.end(), holding2);
 784                     }
 785                 }
 786                 catch (std::exception& ex) {
 787                     // Known exceptions are handled gracefully by skipping the assertion.
 788                     if (m_log.isDebugEnabled()) {
 789                         auto_ptr_char tempid(assert->getID());
 790                         auto_ptr_char eid(entityID);
 791                         m_log.debug(
 792                             "exception authenticating assertion (%s) in metadata extension for entity (%s): %s",
 793                             tempid.get(),
 794                             eid.get(),
 795                             ex.what()
 796                             );
 797                     }
 798                     continue;
 799                 }
 800             }
 801         }
 802
 803         if (!holding.empty()) {
 804             if (useCache) {
 805                 locker.release();   // unguard to upgrade lock
 806                 m_attrLock->unlock();
 807                 m_attrLock->wrlock();
 808                 SharedLock locker2(m_attrLock, false);   // pop the lock when we're done
 809                 if (cacheEntry->second.count(container) == 0) {
 810                     static void (vector<DDF>::* push_back)(DDF const &) = &vector<DDF>::push_back;
 811                     vector<DDF>& marshalled = cacheEntry->second[container];
 812                     for_each(
 813                         holding.begin(), holding.end(),
 814                         boost::bind(push_back, boost::ref(marshalled), boost::bind(&Attribute::marshall, _1))
 815                         );
 816                 }
 817             }
 818
 819             // Copy them to the output parameter, which transfers ownership.
 820             attributes.transfer(attributes.end(), holding);
 821         }
 822
 823         // If the lock is held, it's guarded.
 824
 825         break;  // only process a single extension element
 826     }
 827 }
 828
 829 void XMLExtractor::extractAttributes(
 830     const Application& application, const GenericRequest* request, const RoleDescriptor* issuer, const XMLObject& xmlObject, vector<Attribute*>& attributes
 831     ) const
 832 {
 833     if (!m_impl)
 834         return;
 835
 836     ptr_vector<Attribute> holding;
 837     extractAttributes(application, request, issuer, xmlObject, holding);
 838
 839     // Transfer ownership from the ptr_vector to the unsafe vector for API compatibility.
 840     // Any throws should leave each container in a consistent state. The holding container
 841     // is freed by us, and the result container by the caller.
 842     while (!holding.empty()) {
 843         ptr_vector<Attribute>::auto_type ptr = holding.pop_back();
 844         attributes.push_back(ptr.get());
 845         ptr.release();
 846     }
 847 }
 848
 849 void XMLExtractor::extractAttributes(
 850     const Application& application, const GenericRequest* request, const RoleDescriptor* issuer, const XMLObject& xmlObject, ptr_vector<Attribute>& attributes
 851     ) const
 852 {
 853     static void (XMLExtractor::* extractEncrypted)(
 854         const Application&, const GenericRequest*, const RoleDescriptor*, const XMLObject&, ptr_vector<Attribute>&
 855         ) const = &XMLExtractor::extractAttributes;
 856     static void (XMLExtractorImpl::* extractV1Statement)(
 857         const Application&, const GenericRequest*, const char*, const char*, const saml1::AttributeStatement&, ptr_vector<Attribute>&
 858         ) const = &XMLExtractorImpl::extractAttributes;
 859
 860     const EntityDescriptor* entity = issuer ? dynamic_cast<const EntityDescriptor*>(issuer->getParent()) : nullptr;
 861     const char* relyingParty = application.getRelyingParty(entity)->getString("entityID").second;
 862
 863     // Check for statements.
 864     if (XMLString::equals(xmlObject.getElementQName().getLocalPart(), saml1::AttributeStatement::LOCAL_NAME)) {
 865         const saml2::AttributeStatement* statement2 = dynamic_cast<const saml2::AttributeStatement*>(&xmlObject);
 866         if (statement2) {
 867             auto_ptr_char assertingParty(entity ? entity->getEntityID() : nullptr);
 868             m_impl->extractAttributes(application, request, assertingParty.get(), relyingParty, *statement2, attributes);
 869             // Handle EncryptedAttributes inline so we have access to the role descriptor.
 870             const vector<saml2::EncryptedAttribute*>& encattrs = statement2->getEncryptedAttributes();
 871             for_each(
 872                 make_indirect_iterator(encattrs.begin()), make_indirect_iterator(encattrs.end()),
 873                 boost::bind(extractEncrypted, this, boost::ref(application), request, issuer, _1, boost::ref(attributes))
 874                 );
 875             return;
 876         }
 877
 878         const saml1::AttributeStatement* statement1 = dynamic_cast<const saml1::AttributeStatement*>(&xmlObject);
 879         if (statement1) {
 880             auto_ptr_char assertingParty(entity ? entity->getEntityID() : nullptr);
 881             m_impl->extractAttributes(application, request, assertingParty.get(), relyingParty, *statement1, attributes);
 882             return;
 883         }
 884
 885         throw AttributeExtractionException("Unable to extract attributes, unknown object type.");
 886     }
 887
 888     // Check for assertions.
 889     if (XMLString::equals(xmlObject.getElementQName().getLocalPart(), saml1::Assertion::LOCAL_NAME)) {
 890         const saml2::Assertion* token2 = dynamic_cast<const saml2::Assertion*>(&xmlObject);
 891         if (token2) {
 892             auto_ptr_char assertingParty(entity ? entity->getEntityID() : nullptr);
 893             const vector<saml2::AttributeStatement*>& statements = token2->getAttributeStatements();
 894             for (indirect_iterator<vector<saml2::AttributeStatement*>::const_iterator> s = make_indirect_iterator(statements.begin());
 895                     s != make_indirect_iterator(statements.end()); ++s) {
 896                 m_impl->extractAttributes(application, request, assertingParty.get(), relyingParty, *s, attributes);
 897                 // Handle EncryptedAttributes inline so we have access to the role descriptor.
 898                 const vector<saml2::EncryptedAttribute*>& encattrs = const_cast<const saml2::AttributeStatement&>(*s).getEncryptedAttributes();
 899                 for_each(
 900                     make_indirect_iterator(encattrs.begin()), make_indirect_iterator(encattrs.end()),
 901                     boost::bind(extractEncrypted, this, boost::ref(application), request, issuer, _1, boost::ref(attributes))
 902                     );
 903             }
 904             return;
 905         }
 906
 907         const saml1::Assertion* token1 = dynamic_cast<const saml1::Assertion*>(&xmlObject);
 908         if (token1) {
 909             auto_ptr_char assertingParty(entity ? entity->getEntityID() : nullptr);
 910             const vector<saml1::AttributeStatement*>& statements = token1->getAttributeStatements();
 911             for_each(make_indirect_iterator(statements.begin()), make_indirect_iterator(statements.end()),
 912                 boost::bind(extractV1Statement, m_impl.get(), boost::ref(application), request, assertingParty.get(), relyingParty, _1, boost::ref(attributes))
 913                 );
 914             return;
 915         }
 916
 917         throw AttributeExtractionException("Unable to extract attributes, unknown object type.");
 918     }
 919
 920     // Check for metadata.
 921     if (XMLString::equals(xmlObject.getElementQName().getNamespaceURI(), samlconstants::SAML20MD_NS)) {
 922         const RoleDescriptor* roleToExtract = dynamic_cast<const RoleDescriptor*>(&xmlObject);
 923         const EntityDescriptor* entityToExtract = roleToExtract ? dynamic_cast<const EntityDescriptor*>(roleToExtract->getParent()) : nullptr;
 924         if (!entityToExtract)
 925             throw AttributeExtractionException("Unable to extract attributes, unknown metadata object type.");
 926         const Extensions* ext = entityToExtract->getExtensions();
 927         if (ext) {
 928             m_impl->extractAttributes(
 929                 application,
 930                 request,
 931                 dynamic_cast<const ObservableMetadataProvider*>(application.getMetadataProvider(false)),
 932                 entityToExtract->getEntityID(),
 933                 relyingParty,
 934                 *ext,
 935                 attributes
 936                 );
 937         }
 938         const EntitiesDescriptor* group = dynamic_cast<const EntitiesDescriptor*>(entityToExtract->getParent());
 939         while (group) {
 940             ext = group->getExtensions();
 941             if (ext) {
 942                 m_impl->extractAttributes(
 943                     application,
 944                     request,
 945                     dynamic_cast<const ObservableMetadataProvider*>(application.getMetadataProvider(false)),
 946                     nullptr,   // not an entity, so inline assertions won't be processed
 947                     relyingParty,
 948                     *ext,
 949                     attributes
 950                     );
 951             }
 952             group = dynamic_cast<const EntitiesDescriptor*>(group->getParent());
 953         }
 954         return;
 955     }
 956
 957     // Check for attributes.
 958     if (XMLString::equals(xmlObject.getElementQName().getLocalPart(), saml1::Attribute::LOCAL_NAME)) {
 959         auto_ptr_char assertingParty(entity ? entity->getEntityID() : nullptr);
 960         const saml2::Attribute* attr2 = dynamic_cast<const saml2::Attribute*>(&xmlObject);
 961         if (attr2)
 962             return m_impl->extractAttributes(application, request, assertingParty.get(), relyingParty, *attr2, attributes);
 963
 964         const saml1::Attribute* attr1 = dynamic_cast<const saml1::Attribute*>(&xmlObject);
 965         if (attr1)
 966             return m_impl->extractAttributes(application, request, assertingParty.get(), relyingParty, *attr1, attributes);
 967
 968         throw AttributeExtractionException("Unable to extract attributes, unknown object type.");
 969     }
 970
 971     if (XMLString::equals(xmlObject.getElementQName().getLocalPart(), EncryptedAttribute::LOCAL_NAME)) {
 972         const EncryptedAttribute* encattr = dynamic_cast<const EncryptedAttribute*>(&xmlObject);
 973         if (encattr) {
 974             const XMLCh* recipient = application.getXMLString("entityID").second;
 975             CredentialResolver* cr = application.getCredentialResolver();
 976             if (!cr) {
 977                 m_log.warn("found encrypted attribute, but no CredentialResolver was available");
 978                 return;
 979             }
 980
 981             try {
 982                 Locker credlocker(cr);
 983                 if (issuer) {
 984                     MetadataCredentialCriteria mcc(*issuer);
 985                     scoped_ptr<XMLObject> decrypted(encattr->decrypt(*cr, recipient, &mcc));
 986                     if (m_log.isDebugEnabled())
 987                         m_log.debugStream() << "decrypted Attribute: " << *decrypted << logging::eol;
 988                     return extractAttributes(application, request, issuer, *decrypted, attributes);
 989                 }
 990                 else {
 991                     scoped_ptr<XMLObject> decrypted(encattr->decrypt(*cr, recipient));
 992                     if (m_log.isDebugEnabled())
 993                         m_log.debugStream() << "decrypted Attribute: " << *decrypted << logging::eol;
 994                     return extractAttributes(application, request, issuer, *decrypted, attributes);
 995                 }
 996             }
 997             catch (std::exception& ex) {
 998                 m_log.error("failed to decrypt Attribute: %s", ex.what());
 999                 return;
1000             }
1001         }
1002     }
1003
1004     // Check for NameIDs.
1005     const NameID* name2 = dynamic_cast<const NameID*>(&xmlObject);
1006     if (name2) {
1007         auto_ptr_char assertingParty(entity ? entity->getEntityID() : nullptr);
1008         return m_impl->extractAttributes(application, assertingParty.get(), relyingParty, *name2, attributes);
1009     }
1010
1011     const NameIdentifier* name1 = dynamic_cast<const NameIdentifier*>(&xmlObject);
1012     if (name1) {
1013         auto_ptr_char assertingParty(entity ? entity->getEntityID() : nullptr);
1014         return m_impl->extractAttributes(application, assertingParty.get(), relyingParty, *name1, attributes);
1015     }
1016
1017     m_log.debug("unable to extract attributes, unknown XML object type: %s", xmlObject.getElementQName().toString().c_str());
1018 }
1019
1020 pair<bool,DOMElement*> XMLExtractor::background_load()
1021 {
1022     // Load from source using base class.
1023     pair<bool,DOMElement*> raw = ReloadableXMLFile::load();
1024
1025     // If we own it, wrap it.
1026     XercesJanitor<DOMDocument> docjanitor(raw.first ? raw.second->getOwnerDocument() : nullptr);
1027
1028     scoped_ptr<XMLExtractorImpl> impl(new XMLExtractorImpl(raw.second, m_log));
1029
1030     // If we held the document, transfer it to the impl. If we didn't, it's a no-op.
1031     impl->setDocument(docjanitor.release());
1032
1033     // Perform the swap inside a lock.
1034     if (m_lock)
1035         m_lock->wrlock();
1036     SharedLock locker(m_lock, false);
1037     m_impl.swap(impl);
1038
1039     return make_pair(false,(DOMElement*)nullptr);
1040 }