shibsp/handler/impl/AssertionConsumerService.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  * AssertionConsumerService.cpp
  23  *
  24  * Base class for handlers that create sessions by consuming SSO protocol responses.
  25  */
  26
  27 #include "internal.h"
  28 #include "exceptions.h"
  29 #include "Application.h"
  30 #include "ServiceProvider.h"
  31 #include "SPRequest.h"
  32 #include "handler/AssertionConsumerService.h"
  33 #include "util/SPConstants.h"
  34
  35 # include <ctime>
  36 #ifndef SHIBSP_LITE
  37 # include "attribute/Attribute.h"
  38 # include "attribute/filtering/AttributeFilter.h"
  39 # include "attribute/filtering/BasicFilteringContext.h"
  40 # include "attribute/resolver/AttributeExtractor.h"
  41 # include "attribute/resolver/AttributeResolver.h"
  42 # include "attribute/resolver/ResolutionContext.h"
  43 # include "metadata/MetadataProviderCriteria.h"
  44 # include "security/SecurityPolicy.h"
  45 # include "security/SecurityPolicyProvider.h"
  46 # include <saml/exceptions.h>
  47 # include <saml/SAMLConfig.h>
  48 # include <saml/saml1/core/Assertions.h>
  49 # include <saml/saml1/core/Protocols.h>
  50 # include <saml/saml2/core/Protocols.h>
  51 # include <saml/saml2/metadata/Metadata.h>
  52 # include <saml/util/CommonDomainCookie.h>
  53 using namespace samlconstants;
  54 using opensaml::saml2md::MetadataProvider;
  55 using opensaml::saml2md::RoleDescriptor;
  56 using opensaml::saml2md::EntityDescriptor;
  57 using opensaml::saml2md::IDPSSODescriptor;
  58 using opensaml::saml2md::SPSSODescriptor;
  59 #else
  60 # include "lite/CommonDomainCookie.h"
  61 #endif
  62
  63 using namespace shibspconstants;
  64 using namespace shibsp;
  65 using namespace opensaml;
  66 using namespace xmltooling;
  67 using namespace std;
  68
  69 AssertionConsumerService::AssertionConsumerService(
  70     const DOMElement* e, const char* appId, Category& log, DOMNodeFilter* filter, const map<string,string>* remapper
  71     ) : AbstractHandler(e, log, filter, remapper)
  72 #ifndef SHIBSP_LITE
  73         ,m_decoder(nullptr), m_role(samlconstants::SAML20MD_NS, opensaml::saml2md::IDPSSODescriptor::LOCAL_NAME)
  74 #endif
  75 {
  76     if (!e)
  77         return;
  78     string address(appId);
  79     address += getString("Location").second;
  80     setAddress(address.c_str());
  81 #ifndef SHIBSP_LITE
  82     if (SPConfig::getConfig().isEnabled(SPConfig::OutOfProcess)) {
  83         m_decoder = SAMLConfig::getConfig().MessageDecoderManager.newPlugin(
  84             getString("Binding").second, pair<const DOMElement*,const XMLCh*>(e,shibspconstants::SHIB2SPCONFIG_NS)
  85             );
  86         m_decoder->setArtifactResolver(SPConfig::getConfig().getArtifactResolver());
  87     }
  88 #endif
  89 }
  90
  91 AssertionConsumerService::~AssertionConsumerService()
  92 {
  93 #ifndef SHIBSP_LITE
  94     delete m_decoder;
  95 #endif
  96 }
  97
  98 pair<bool,long> AssertionConsumerService::run(SPRequest& request, bool isHandler) const
  99 {
 100     string relayState;
 101     SPConfig& conf = SPConfig::getConfig();
 102
 103     if (conf.isEnabled(SPConfig::OutOfProcess)) {
 104         // When out of process, we run natively and directly process the message.
 105         return processMessage(request.getApplication(), request, request);
 106     }
 107     else {
 108         // When not out of process, we remote all the message processing.
 109         vector<string> headers(1, "Cookie");
 110         headers.push_back("User-Agent");
 111         DDF out,in = wrap(request, &headers);
 112         DDFJanitor jin(in), jout(out);
 113         out=request.getServiceProvider().getListenerService()->send(in);
 114         return unwrap(request, out);
 115     }
 116 }
 117
 118 void AssertionConsumerService::receive(DDF& in, ostream& out)
 119 {
 120     // Find application.
 121     const char* aid=in["application_id"].string();
 122     const Application* app=aid ? SPConfig::getConfig().getServiceProvider()->getApplication(aid) : nullptr;
 123     if (!app) {
 124         // Something's horribly wrong.
 125         m_log.error("couldn't find application (%s) for new session", aid ? aid : "(missing)");
 126         throw ConfigurationException("Unable to locate application for new session, deleted?");
 127     }
 128
 129     // Unpack the request.
 130     auto_ptr<HTTPRequest> req(getRequest(in));
 131
 132     // Wrap a response shim.
 133     DDF ret(nullptr);
 134     DDFJanitor jout(ret);
 135     auto_ptr<HTTPResponse> resp(getResponse(ret));
 136
 137     // Since we're remoted, the result should either be a throw, a false/0 return,
 138     // which we just return as an empty structure, or a response/redirect,
 139     // which we capture in the facade and send back.
 140     processMessage(*app, *req.get(), *resp.get());
 141     out << ret;
 142 }
 143
 144 pair<bool,long> AssertionConsumerService::processMessage(
 145     const Application& application, const HTTPRequest& httpRequest, HTTPResponse& httpResponse
 146     ) const
 147 {
 148 #ifndef SHIBSP_LITE
 149     // Locate policy key.
 150     pair<bool,const char*> policyId = getString("policyId", m_configNS.get());  // namespace-qualified if inside handler element
 151     if (!policyId.first)
 152         policyId = application.getString("policyId");   // unqualified in Application(s) element
 153
 154     // Lock metadata for use by policy.
 155     Locker metadataLocker(application.getMetadataProvider());
 156
 157     // Create the policy.
 158     auto_ptr<opensaml::SecurityPolicy> policy(
 159         application.getServiceProvider().getSecurityPolicyProvider()->createSecurityPolicy(application, &m_role, policyId.second)
 160         );
 161
 162     string relayState;
 163     bool relayStateOK = true;
 164     auto_ptr<XMLObject> msg(nullptr);
 165     try {
 166         // Decode the message and process it in a protocol-specific way.
 167         auto_ptr<XMLObject> msg2(m_decoder->decode(relayState, httpRequest, *(policy.get())));
 168         if (!msg2.get())
 169             throw BindingException("Failed to decode an SSO protocol response.");
 170         msg = msg2; // save off to allow access from within exception handler.
 171         DDF postData = recoverPostData(application, httpRequest, httpResponse, relayState.c_str());
 172         DDFJanitor postjan(postData);
 173         recoverRelayState(application, httpRequest, httpResponse, relayState);
 174         limitRelayState(m_log, application, httpRequest, relayState.c_str());
 175         implementProtocol(application, httpRequest, httpResponse, *(policy.get()), NULL, *msg.get());
 176
 177         auto_ptr_char issuer(policy->getIssuer() ? policy->getIssuer()->getName() : nullptr);
 178
 179         // History cookie.
 180         if (issuer.get() && *issuer.get())
 181             maintainHistory(application, httpRequest, httpResponse, issuer.get());
 182
 183         // Now redirect to the state value. By now, it should be set to *something* usable.
 184         // First check for POST data.
 185         if (!postData.islist()) {
 186             m_log.debug("ACS returning via redirect to: %s", relayState.c_str());
 187             return make_pair(true, httpResponse.sendRedirect(relayState.c_str()));
 188         }
 189         else {
 190             m_log.debug("ACS returning via POST to: %s", relayState.c_str());
 191             return make_pair(true, sendPostResponse(application, httpResponse, relayState.c_str(), postData));
 192         }
 193     }
 194     catch (XMLToolingException& ex) {
 195         if (relayStateOK) {
 196             // Check for isPassive error condition.
 197             const char* sc2 = ex.getProperty("statusCode2");
 198             if (sc2 && !strcmp(sc2, "urn:oasis:names:tc:SAML:2.0:status:NoPassive")) {
 199                 pair<bool,bool> ignore = getBool("ignoreNoPassive", m_configNS.get());  // namespace-qualified if inside handler element
 200                 if (ignore.first && ignore.second && !relayState.empty()) {
 201                     m_log.debug("ignoring SAML status of NoPassive and redirecting to resource...");
 202                     return make_pair(true, httpResponse.sendRedirect(relayState.c_str()));
 203                 }
 204             }
 205         }
 206         if (!relayState.empty())
 207             ex.addProperty("RelayState", relayState.c_str());
 208
 209         // Log the error.
 210         try {
 211             auto_ptr<TransactionLog::Event> event(SPConfig::getConfig().EventManager.newPlugin(LOGIN_EVENT, nullptr));
 212             LoginEvent* error_event = dynamic_cast<LoginEvent*>(event.get());
 213             if (error_event) {
 214                 error_event->m_exception = &ex;
 215                 error_event->m_request = &httpRequest;
 216                 error_event->m_app = &application;
 217                 if (policy->getIssuerMetadata())
 218                     error_event->m_peer = dynamic_cast<const EntityDescriptor*>(policy->getIssuerMetadata()->getParent());
 219                 auto_ptr_char prot(getProtocolFamily());
 220                 error_event->m_protocol = prot.get();
 221                 error_event->m_binding = getString("Binding").second;
 222                 error_event->m_saml2Response = dynamic_cast<const saml2p::StatusResponseType*>(msg.get());
 223                 if (!error_event->m_saml2Response)
 224                     error_event->m_saml1Response = dynamic_cast<const saml1p::Response*>(msg.get());
 225                 application.getServiceProvider().getTransactionLog()->write(*error_event);
 226             }
 227             else {
 228                 m_log.warn("unable to audit event, log event object was of an incorrect type");
 229             }
 230         }
 231         catch (exception& ex) {
 232             m_log.warn("exception auditing event: %s", ex.what());
 233         }
 234
 235         throw;
 236     }
 237 #else
 238     throw ConfigurationException("Cannot process message using lite version of shibsp library.");
 239 #endif
 240 }
 241
 242 void AssertionConsumerService::checkAddress(const Application& application, const HTTPRequest& httpRequest, const char* issuedTo) const
 243 {
 244     if (!issuedTo || !*issuedTo)
 245         return;
 246
 247     const PropertySet* props=application.getPropertySet("Sessions");
 248     pair<bool,bool> checkAddress = props ? props->getBool("checkAddress") : make_pair(false,true);
 249     if (!checkAddress.first)
 250         checkAddress.second=true;
 251
 252     if (checkAddress.second) {
 253         m_log.debug("checking client address");
 254         if (httpRequest.getRemoteAddr() != issuedTo) {
 255             throw FatalProfileException(
 256                "Your client's current address ($client_addr) differs from the one used when you authenticated "
 257                 "to your identity provider. To correct this problem, you may need to bypass a proxy server. "
 258                 "Please contact your local support staff or help desk for assistance.",
 259                 namedparams(1,"client_addr",httpRequest.getRemoteAddr().c_str())
 260                 );
 261         }
 262     }
 263 }
 264
 265 #ifndef SHIBSP_LITE
 266
 267 const XMLCh* AssertionConsumerService::getProtocolFamily() const
 268 {
 269     return m_decoder ? m_decoder->getProtocolFamily() : nullptr;
 270 }
 271
 272 const char* AssertionConsumerService::getType() const
 273 {
 274     return "AssertionConsumerService";
 275 }
 276
 277 void AssertionConsumerService::generateMetadata(SPSSODescriptor& role, const char* handlerURL) const
 278 {
 279     // Initial guess at index to use.
 280     pair<bool,unsigned int> ix = pair<bool,unsigned int>(false,0);
 281     if (!strncmp(handlerURL, "https", 5))
 282         ix = getUnsignedInt("sslIndex", shibspconstants::ASCII_SHIB2SPCONFIG_NS);
 283     if (!ix.first)
 284         ix = getUnsignedInt("index");
 285     if (!ix.first)
 286         ix.second = 1;
 287
 288     // Find maximum index in use and go one higher.
 289     const vector<saml2md::AssertionConsumerService*>& services = const_cast<const SPSSODescriptor&>(role).getAssertionConsumerServices();
 290     if (!services.empty() && ix.second <= services.back()->getIndex().second)
 291         ix.second = services.back()->getIndex().second + 1;
 292
 293     const char* loc = getString("Location").second;
 294     string hurl(handlerURL);
 295     if (*loc != '/')
 296         hurl += '/';
 297     hurl += loc;
 298     auto_ptr_XMLCh widen(hurl.c_str());
 299
 300     saml2md::AssertionConsumerService* ep = saml2md::AssertionConsumerServiceBuilder::buildAssertionConsumerService();
 301     ep->setLocation(widen.get());
 302     ep->setBinding(getXMLString("Binding").second);
 303     ep->setIndex(ix.second);
 304     role.getAssertionConsumerServices().push_back(ep);
 305 }
 306
 307 opensaml::SecurityPolicy* AssertionConsumerService::createSecurityPolicy(
 308     const Application& application, const xmltooling::QName* role, bool validate, const char* policyId
 309     ) const
 310 {
 311     return new SecurityPolicy(application, role, validate, policyId);
 312 }
 313
 314 class SHIBSP_DLLLOCAL DummyContext : public ResolutionContext
 315 {
 316 public:
 317     DummyContext(const vector<Attribute*>& attributes) : m_attributes(attributes) {
 318     }
 319
 320     virtual ~DummyContext() {
 321         for_each(m_attributes.begin(), m_attributes.end(), xmltooling::cleanup<Attribute>());
 322     }
 323
 324     vector<Attribute*>& getResolvedAttributes() {
 325         return m_attributes;
 326     }
 327     vector<Assertion*>& getResolvedAssertions() {
 328         return m_tokens;
 329     }
 330
 331 private:
 332     vector<Attribute*> m_attributes;
 333     static vector<Assertion*> m_tokens; // never any tokens, so just share an empty vector
 334 };
 335
 336 vector<Assertion*> DummyContext::m_tokens;
 337
 338 ResolutionContext* AssertionConsumerService::resolveAttributes(
 339     const Application& application,
 340     const saml2md::RoleDescriptor* issuer,
 341     const XMLCh* protocol,
 342     const saml1::NameIdentifier* v1nameid,
 343     const saml2::NameID* nameid,
 344     const XMLCh* authncontext_class,
 345     const XMLCh* authncontext_decl,
 346     const vector<const Assertion*>* tokens
 347     ) const
 348 {
 349     return resolveAttributes(
 350         application,
 351         issuer,
 352         protocol,
 353         v1nameid,
 354         nullptr,
 355         nameid,
 356         nullptr,
 357         authncontext_class,
 358         authncontext_decl,
 359         tokens
 360         );
 361 }
 362
 363 ResolutionContext* AssertionConsumerService::resolveAttributes(
 364     const Application& application,
 365     const saml2md::RoleDescriptor* issuer,
 366     const XMLCh* protocol,
 367     const saml1::NameIdentifier* v1nameid,
 368     const saml1::AuthenticationStatement* v1statement,
 369     const saml2::NameID* nameid,
 370     const saml2::AuthnStatement* statement,
 371     const XMLCh* authncontext_class,
 372     const XMLCh* authncontext_decl,
 373     const vector<const Assertion*>* tokens
 374     ) const
 375 {
 376     // First we do the extraction of any pushed information, including from metadata.
 377     vector<Attribute*> resolvedAttributes;
 378     AttributeExtractor* extractor = application.getAttributeExtractor();
 379     if (extractor) {
 380         Locker extlocker(extractor);
 381         if (issuer) {
 382             pair<bool,const char*> mprefix = application.getString("metadataAttributePrefix");
 383             if (mprefix.first) {
 384                 m_log.debug("extracting metadata-derived attributes...");
 385                 try {
 386                     // We pass nullptr for "issuer" because the IdP isn't the one asserting metadata-based attributes.
 387                     extractor->extractAttributes(application, nullptr, *issuer, resolvedAttributes);
 388                     for (vector<Attribute*>::iterator a = resolvedAttributes.begin(); a != resolvedAttributes.end(); ++a) {
 389                         vector<string>& ids = (*a)->getAliases();
 390                         for (vector<string>::iterator id = ids.begin(); id != ids.end(); ++id)
 391                             *id = mprefix.second + *id;
 392                     }
 393                 }
 394                 catch (exception& ex) {
 395                     m_log.error("caught exception extracting attributes: %s", ex.what());
 396                 }
 397             }
 398         }
 399
 400         m_log.debug("extracting pushed attributes...");
 401
 402         if (v1nameid || nameid) {
 403             try {
 404                 if (v1nameid)
 405                     extractor->extractAttributes(application, issuer, *v1nameid, resolvedAttributes);
 406                 else
 407                     extractor->extractAttributes(application, issuer, *nameid, resolvedAttributes);
 408             }
 409             catch (exception& ex) {
 410                 m_log.error("caught exception extracting attributes: %s", ex.what());
 411             }
 412         }
 413
 414         if (v1statement || statement) {
 415             try {
 416                 if (v1statement)
 417                     extractor->extractAttributes(application, issuer, *v1statement, resolvedAttributes);
 418                 else
 419                     extractor->extractAttributes(application, issuer, *statement, resolvedAttributes);
 420             }
 421             catch (exception& ex) {
 422                 m_log.error("caught exception extracting attributes: %s", ex.what());
 423             }
 424         }
 425
 426         if (tokens) {
 427             for (vector<const Assertion*>::const_iterator t = tokens->begin(); t!=tokens->end(); ++t) {
 428                 try {
 429                     extractor->extractAttributes(application, issuer, *(*t), resolvedAttributes);
 430                 }
 431                 catch (exception& ex) {
 432                     m_log.error("caught exception extracting attributes: %s", ex.what());
 433                 }
 434             }
 435         }
 436
 437         AttributeFilter* filter = application.getAttributeFilter();
 438         if (filter && !resolvedAttributes.empty()) {
 439             BasicFilteringContext fc(application, resolvedAttributes, issuer, authncontext_class);
 440             Locker filtlocker(filter);
 441             try {
 442                 filter->filterAttributes(fc, resolvedAttributes);
 443             }
 444             catch (exception& ex) {
 445                 m_log.error("caught exception filtering attributes: %s", ex.what());
 446                 m_log.error("dumping extracted attributes due to filtering exception");
 447                 for_each(resolvedAttributes.begin(), resolvedAttributes.end(), xmltooling::cleanup<shibsp::Attribute>());
 448                 resolvedAttributes.clear();
 449             }
 450         }
 451     }
 452     else {
 453         m_log.warn("no AttributeExtractor plugin installed, check log during startup");
 454     }
 455
 456     try {
 457         AttributeResolver* resolver = application.getAttributeResolver();
 458         if (resolver) {
 459             m_log.debug("resolving attributes...");
 460
 461             Locker locker(resolver);
 462             auto_ptr<ResolutionContext> ctx(
 463                 resolver->createResolutionContext(
 464                     application,
 465                     issuer ? dynamic_cast<const saml2md::EntityDescriptor*>(issuer->getParent()) : nullptr,
 466                     protocol,
 467                     nameid,
 468                     authncontext_class,
 469                     authncontext_decl,
 470                     tokens,
 471                     &resolvedAttributes
 472                     )
 473                 );
 474             resolver->resolveAttributes(*ctx.get());
 475             // Copy over any pushed attributes.
 476             if (!resolvedAttributes.empty())
 477                 ctx->getResolvedAttributes().insert(ctx->getResolvedAttributes().end(), resolvedAttributes.begin(), resolvedAttributes.end());
 478             return ctx.release();
 479         }
 480     }
 481     catch (exception& ex) {
 482         m_log.error("attribute resolution failed: %s", ex.what());
 483     }
 484
 485     if (!resolvedAttributes.empty())
 486         return new DummyContext(resolvedAttributes);
 487     return nullptr;
 488 }
 489
 490 void AssertionConsumerService::extractMessageDetails(const Assertion& assertion, const XMLCh* protocol, opensaml::SecurityPolicy& policy) const
 491 {
 492     policy.setMessageID(assertion.getID());
 493     policy.setIssueInstant(assertion.getIssueInstantEpoch());
 494
 495     if (XMLString::equals(assertion.getElementQName().getNamespaceURI(), samlconstants::SAML20_NS)) {
 496         const saml2::Assertion* a2 = dynamic_cast<const saml2::Assertion*>(&assertion);
 497         if (a2) {
 498             m_log.debug("extracting issuer from SAML 2.0 assertion");
 499             policy.setIssuer(a2->getIssuer());
 500         }
 501     }
 502     else {
 503         const saml1::Assertion* a1 = dynamic_cast<const saml1::Assertion*>(&assertion);
 504         if (a1) {
 505             m_log.debug("extracting issuer from SAML 1.x assertion");
 506             policy.setIssuer(a1->getIssuer());
 507         }
 508     }
 509
 510     if (policy.getIssuer() && !policy.getIssuerMetadata() && policy.getMetadataProvider()) {
 511         if (policy.getIssuer()->getFormat() && !XMLString::equals(policy.getIssuer()->getFormat(), saml2::NameIDType::ENTITY)) {
 512             m_log.warn("non-system entity issuer, skipping metadata lookup");
 513             return;
 514         }
 515         m_log.debug("searching metadata for assertion issuer...");
 516         pair<const EntityDescriptor*,const RoleDescriptor*> entity;
 517         MetadataProvider::Criteria& mc = policy.getMetadataProviderCriteria();
 518         mc.entityID_unicode = policy.getIssuer()->getName();
 519         mc.role = &IDPSSODescriptor::ELEMENT_QNAME;
 520         mc.protocol = protocol;
 521         entity = policy.getMetadataProvider()->getEntityDescriptor(mc);
 522         if (!entity.first) {
 523             auto_ptr_char iname(policy.getIssuer()->getName());
 524             m_log.warn("no metadata found, can't establish identity of issuer (%s)", iname.get());
 525         }
 526         else if (!entity.second) {
 527             m_log.warn("unable to find compatible IdP role in metadata");
 528         }
 529         else {
 530             policy.setIssuerMetadata(entity.second);
 531         }
 532     }
 533 }
 534
 535 LoginEvent* AssertionConsumerService::newLoginEvent(const Application& application, const xmltooling::HTTPRequest& request) const
 536 {
 537     if (!SPConfig::getConfig().isEnabled(SPConfig::Logging))
 538         return nullptr;
 539     try {
 540         auto_ptr<TransactionLog::Event> event(SPConfig::getConfig().EventManager.newPlugin(LOGIN_EVENT, nullptr));
 541         LoginEvent* login_event = dynamic_cast<LoginEvent*>(event.get());
 542         if (login_event) {
 543             login_event->m_request = &request;
 544             login_event->m_app = &application;
 545             login_event->m_binding = getString("Binding").second;
 546             event.release();
 547             return login_event;
 548         }
 549         else {
 550             m_log.warn("unable to audit event, log event object was of an incorrect type");
 551         }
 552     }
 553     catch (exception& ex) {
 554         m_log.warn("exception auditing event: %s", ex.what());
 555     }
 556     return nullptr;
 557 }
 558
 559 #endif
 560
 561 void AssertionConsumerService::maintainHistory(
 562     const Application& application, const HTTPRequest& request, HTTPResponse& response, const char* entityID
 563     ) const
 564 {
 565     static const char* defProps="; path=/";
 566
 567     const PropertySet* sessionProps=application.getPropertySet("Sessions");
 568     pair<bool,bool> idpHistory=sessionProps->getBool("idpHistory");
 569
 570     if (idpHistory.first && idpHistory.second) {
 571         pair<bool,const char*> cookieProps=sessionProps->getString("idpHistoryProps");
 572         if (!cookieProps.first)
 573             cookieProps=sessionProps->getString("cookieProps");
 574         if (!cookieProps.first)
 575             cookieProps.second=defProps;
 576
 577         // Set an IdP history cookie locally (essentially just a CDC).
 578         CommonDomainCookie cdc(request.getCookie(CommonDomainCookie::CDCName));
 579
 580         // Either leave in memory or set an expiration.
 581         pair<bool,unsigned int> days=sessionProps->getUnsignedInt("idpHistoryDays");
 582         if (!days.first || days.second==0) {
 583             string c = string(cdc.set(entityID)) + cookieProps.second;
 584             response.setCookie(CommonDomainCookie::CDCName, c.c_str());
 585         }
 586         else {
 587             time_t now=time(nullptr) + (days.second * 24 * 60 * 60);
 588 #ifdef HAVE_GMTIME_R
 589             struct tm res;
 590             struct tm* ptime=gmtime_r(&now,&res);
 591 #else
 592             struct tm* ptime=gmtime(&now);
 593 #endif
 594             char timebuf[64];
 595             strftime(timebuf,64,"%a, %d %b %Y %H:%M:%S GMT",ptime);
 596             string c = string(cdc.set(entityID)) + cookieProps.second + "; expires=" + timebuf;
 597             response.setCookie(CommonDomainCookie::CDCName, c.c_str());
 598         }
 599     }
 600 }