shibsp/handler/impl/SAML2Logout.cpp

   1 /*
   2  *  Copyright 2001-2009 Internet2
   3  *
   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
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  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.
  15  */
  16
  17 /**
  18  * SAML2Logout.cpp
  19  *
  20  * Handles SAML 2.0 single logout protocol messages.
  21  */
  22
  23 #include "internal.h"
  24 #include "exceptions.h"
  25 #include "Application.h"
  26 #include "ServiceProvider.h"
  27 #include "handler/AbstractHandler.h"
  28 #include "handler/LogoutHandler.h"
  29 #include "util/SPConstants.h"
  30
  31 #ifndef SHIBSP_LITE
  32 # include "SessionCacheEx.h"
  33 # include "security/SecurityPolicy.h"
  34 # include "metadata/MetadataProviderCriteria.h"
  35 # include "util/TemplateParameters.h"
  36 # include <fstream>
  37 # include <saml/SAMLConfig.h>
  38 # include <saml/saml2/core/Protocols.h>
  39 # include <saml/saml2/metadata/EndpointManager.h>
  40 # include <saml/saml2/metadata/MetadataCredentialCriteria.h>
  41 # include <xmltooling/util/URLEncoder.h>
  42 using namespace opensaml::saml2;
  43 using namespace opensaml::saml2p;
  44 using namespace opensaml::saml2md;
  45 using namespace opensaml;
  46 #endif
  47
  48 using namespace shibsp;
  49 using namespace xmltooling;
  50 using namespace std;
  51
  52 namespace shibsp {
  53
  54 #if defined (_MSC_VER)
  55     #pragma warning( push )
  56     #pragma warning( disable : 4250 )
  57 #endif
  58
  59     class SHIBSP_DLLLOCAL SAML2Logout : public AbstractHandler, public LogoutHandler
  60     {
  61     public:
  62         SAML2Logout(const DOMElement* e, const char* appId);
  63         virtual ~SAML2Logout() {
  64 #ifndef SHIBSP_LITE
  65             if (SPConfig::getConfig().isEnabled(SPConfig::OutOfProcess)) {
  66                 delete m_decoder;
  67                 XMLString::release(&m_outgoing);
  68                 for_each(m_encoders.begin(), m_encoders.end(), cleanup_pair<const XMLCh*,MessageEncoder>());
  69             }
  70 #endif
  71         }
  72
  73         void receive(DDF& in, ostream& out);
  74         pair<bool,long> run(SPRequest& request, bool isHandler=true) const;
  75
  76 #ifndef SHIBSP_LITE
  77         void generateMetadata(SPSSODescriptor& role, const char* handlerURL) const {
  78             const char* loc = getString("Location").second;
  79             string hurl(handlerURL);
  80             if (*loc != '/')
  81                 hurl += '/';
  82             hurl += loc;
  83             auto_ptr_XMLCh widen(hurl.c_str());
  84             SingleLogoutService* ep = SingleLogoutServiceBuilder::buildSingleLogoutService();
  85             ep->setLocation(widen.get());
  86             ep->setBinding(getXMLString("Binding").second);
  87             role.getSingleLogoutServices().push_back(ep);
  88             role.addSupport(samlconstants::SAML20P_NS);
  89         }
  90
  91         const char* getType() const {
  92             return "SingleLogoutService";
  93         }
  94 #endif
  95
  96     private:
  97         pair<bool,long> doRequest(const Application& application, const HTTPRequest& httpRequest, HTTPResponse& httpResponse) const;
  98
  99 #ifndef SHIBSP_LITE
 100         pair<bool,long> sendResponse(
 101             const XMLCh* requestID,
 102             const XMLCh* code,
 103             const XMLCh* subcode,
 104             const char* msg,
 105             const char* relayState,
 106             const RoleDescriptor* role,
 107             const Application& application,
 108             HTTPResponse& httpResponse,
 109             bool front
 110             ) const;
 111
 112         xmltooling::QName m_role;
 113         MessageDecoder* m_decoder;
 114         XMLCh* m_outgoing;
 115         vector<const XMLCh*> m_bindings;
 116         map<const XMLCh*,MessageEncoder*> m_encoders;
 117 #endif
 118     };
 119
 120 #if defined (_MSC_VER)
 121     #pragma warning( pop )
 122 #endif
 123
 124     Handler* SHIBSP_DLLLOCAL SAML2LogoutFactory(const pair<const DOMElement*,const char*>& p)
 125     {
 126         return new SAML2Logout(p.first, p.second);
 127     }
 128 };
 129
 130 SAML2Logout::SAML2Logout(const DOMElement* e, const char* appId)
 131     : AbstractHandler(e, Category::getInstance(SHIBSP_LOGCAT".Logout.SAML2"))
 132 #ifndef SHIBSP_LITE
 133         ,m_role(samlconstants::SAML20MD_NS, IDPSSODescriptor::LOCAL_NAME), m_decoder(NULL), m_outgoing(NULL)
 134 #endif
 135 {
 136 #ifndef SHIBSP_LITE
 137     m_initiator = false;
 138     m_preserve.push_back("ID");
 139     m_preserve.push_back("entityID");
 140     m_preserve.push_back("RelayState");
 141
 142     if (SPConfig::getConfig().isEnabled(SPConfig::OutOfProcess)) {
 143         SAMLConfig& conf = SAMLConfig::getConfig();
 144
 145         // Handle incoming binding.
 146         m_decoder = conf.MessageDecoderManager.newPlugin(
 147             getString("Binding").second, pair<const DOMElement*,const XMLCh*>(e,shibspconstants::SHIB2SPCONFIG_NS)
 148             );
 149         m_decoder->setArtifactResolver(SPConfig::getConfig().getArtifactResolver());
 150
 151         if (m_decoder->isUserAgentPresent()) {
 152             // Handle front-channel binding setup.
 153             pair<bool,const XMLCh*> outgoing = getXMLString("outgoingBindings", m_configNS.get());
 154             if (outgoing.first) {
 155                 m_outgoing = XMLString::replicate(outgoing.second);
 156                 XMLString::trim(m_outgoing);
 157             }
 158             else {
 159                 // No override, so we'll install a default binding precedence.
 160                 string prec = string(samlconstants::SAML20_BINDING_HTTP_REDIRECT) + ' ' + samlconstants::SAML20_BINDING_HTTP_POST + ' ' +
 161                     samlconstants::SAML20_BINDING_HTTP_POST_SIMPLESIGN + ' ' + samlconstants::SAML20_BINDING_HTTP_ARTIFACT;
 162                 m_outgoing = XMLString::transcode(prec.c_str());
 163             }
 164
 165             int pos;
 166             XMLCh* start = m_outgoing;
 167             while (start && *start) {
 168                 pos = XMLString::indexOf(start,chSpace);
 169                 if (pos != -1)
 170                     *(start + pos)=chNull;
 171                 m_bindings.push_back(start);
 172                 try {
 173                     auto_ptr_char b(start);
 174                     MessageEncoder * encoder = conf.MessageEncoderManager.newPlugin(
 175                         b.get(), pair<const DOMElement*,const XMLCh*>(e,shibspconstants::SHIB2SPCONFIG_NS)
 176                         );
 177                     m_encoders[start] = encoder;
 178                     m_log.debug("supporting outgoing front-channel binding (%s)", b.get());
 179                 }
 180                 catch (exception& ex) {
 181                     m_log.error("error building MessageEncoder: %s", ex.what());
 182                 }
 183                 if (pos != -1)
 184                     start = start + pos + 1;
 185                 else
 186                     break;
 187             }
 188         }
 189         else {
 190             MessageEncoder* encoder = conf.MessageEncoderManager.newPlugin(
 191                 getString("Binding").second, pair<const DOMElement*,const XMLCh*>(e,shibspconstants::SHIB2SPCONFIG_NS)
 192                 );
 193             m_encoders.insert(pair<const XMLCh*,MessageEncoder*>(NULL, encoder));
 194         }
 195     }
 196 #endif
 197
 198     string address(appId);
 199     address += getString("Location").second;
 200     setAddress(address.c_str());
 201 }
 202
 203 pair<bool,long> SAML2Logout::run(SPRequest& request, bool isHandler) const
 204 {
 205     // Defer to base class for front-channel loop first.
 206     // This won't initiate the loop, only continue/end it.
 207     pair<bool,long> ret = LogoutHandler::run(request, isHandler);
 208     if (ret.first)
 209         return ret;
 210
 211     SPConfig& conf = SPConfig::getConfig();
 212     if (conf.isEnabled(SPConfig::OutOfProcess)) {
 213         // When out of process, we run natively and directly process the message.
 214         return doRequest(request.getApplication(), request, request);
 215     }
 216     else {
 217         // When not out of process, we remote all the message processing.
 218         vector<string> headers(1,"Cookie");
 219         DDF out,in = wrap(request, &headers, true);
 220         DDFJanitor jin(in), jout(out);
 221         out=request.getServiceProvider().getListenerService()->send(in);
 222         return unwrap(request, out);
 223     }
 224 }
 225
 226 void SAML2Logout::receive(DDF& in, ostream& out)
 227 {
 228     // Find application.
 229     const char* aid=in["application_id"].string();
 230     const Application* app=aid ? SPConfig::getConfig().getServiceProvider()->getApplication(aid) : NULL;
 231     if (!app) {
 232         // Something's horribly wrong.
 233         m_log.error("couldn't find application (%s) for logout", aid ? aid : "(missing)");
 234         throw ConfigurationException("Unable to locate application for logout, deleted?");
 235     }
 236
 237     // Unpack the request.
 238     auto_ptr<HTTPRequest> req(getRequest(in));
 239
 240     // Wrap a response shim.
 241     DDF ret(NULL);
 242     DDFJanitor jout(ret);
 243     auto_ptr<HTTPResponse> resp(getResponse(ret));
 244
 245     // Since we're remoted, the result should either be a throw, which we pass on,
 246     // a false/0 return, which we just return as an empty structure, or a response/redirect,
 247     // which we capture in the facade and send back.
 248     doRequest(*app, *req.get(), *resp.get());
 249     out << ret;
 250 }
 251
 252 pair<bool,long> SAML2Logout::doRequest(const Application& application, const HTTPRequest& request, HTTPResponse& response) const
 253 {
 254 #ifndef SHIBSP_LITE
 255     // First capture the active session ID.
 256     SessionCache* cache = application.getServiceProvider().getSessionCache();
 257     SessionCacheEx* cacheex = dynamic_cast<SessionCacheEx*>(cache);
 258     string session_id = cache->active(application, request);
 259
 260     if (!strcmp(request.getMethod(),"GET") && request.getParameter("notifying")) {
 261         // This is returning from a front-channel notification, so we have to do the back-channel and then
 262         // respond. To do that, we need state from the original request.
 263         if (!request.getParameter("entityID")) {
 264             cache->remove(application, request, &response);
 265             throw FatalProfileException("Application notification loop did not return entityID for LogoutResponse.");
 266         }
 267
 268         // Best effort on back channel and to remove the user agent's session.
 269         bool worked1 = false,worked2 = false;
 270         if (!session_id.empty()) {
 271             vector<string> sessions(1,session_id);
 272             worked1 = notifyBackChannel(application, request.getRequestURL(), sessions, false);
 273             try {
 274                 cache->remove(application, request, &response);
 275                 worked2 = true;
 276             }
 277             catch (exception& ex) {
 278                 m_log.error("error removing session (%s): %s", session_id, ex.what());
 279             }
 280         }
 281         else {
 282             worked1 = worked2 = true;
 283         }
 284
 285         // We need metadata to issue a response.
 286         MetadataProvider* m = application.getMetadataProvider();
 287         Locker metadataLocker(m);
 288         MetadataProviderCriteria mc(application, request.getParameter("entityID"), &IDPSSODescriptor::ELEMENT_QNAME, samlconstants::SAML20P_NS);
 289         pair<const EntityDescriptor*,const RoleDescriptor*> entity = m->getEntityDescriptor(mc);
 290         if (!entity.first) {
 291             throw MetadataException(
 292                 "Unable to locate metadata for identity provider ($entityID)", namedparams(1, "entityID", request.getParameter("entityID"))
 293                 );
 294         }
 295         else if (!entity.second) {
 296             throw MetadataException(
 297                 "Unable to locate SAML 2.0 IdP role for identity provider ($entityID).",
 298                 namedparams(1, "entityID", request.getParameter("entityID"))
 299                 );
 300         }
 301
 302         auto_ptr_XMLCh reqid(request.getParameter("ID"));
 303         if (worked1 && worked2) {
 304             // Successful LogoutResponse. Has to be front-channel or we couldn't be here.
 305             return sendResponse(
 306                 reqid.get(), StatusCode::SUCCESS, NULL, NULL, request.getParameter("RelayState"), entity.second, application, response, true
 307                 );
 308         }
 309
 310         return sendResponse(
 311             reqid.get(),
 312             StatusCode::RESPONDER, NULL, "Unable to fully destroy principal's session.",
 313             request.getParameter("RelayState"),
 314             entity.second,
 315             application,
 316             response,
 317             true
 318             );
 319     }
 320
 321     // If we get here, it's an external protocol message to decode.
 322
 323     // Locate policy key.
 324     pair<bool,const char*> policyId = getString("policyId", m_configNS.get());  // namespace-qualified if inside handler element
 325     if (!policyId.first)
 326         policyId = application.getString("policyId");   // unqualified in Application(s) element
 327
 328     // Access policy properties.
 329     const PropertySet* settings = application.getServiceProvider().getPolicySettings(policyId.second);
 330     pair<bool,bool> validate = settings->getBool("validate");
 331
 332     // Lock metadata for use by policy.
 333     Locker metadataLocker(application.getMetadataProvider());
 334
 335     // Create the policy.
 336     shibsp::SecurityPolicy policy(application, &m_role, validate.first && validate.second);
 337
 338     // Decode the message.
 339     string relayState;
 340     auto_ptr<XMLObject> msg(m_decoder->decode(relayState, request, policy));
 341     const LogoutRequest* logoutRequest = dynamic_cast<LogoutRequest*>(msg.get());
 342     if (logoutRequest) {
 343         if (!policy.isAuthenticated())
 344             throw SecurityPolicyException("Security of LogoutRequest not established.");
 345
 346         // Message from IdP to logout one or more sessions.
 347
 348         // If this is front-channel, we have to have a session_id to use already.
 349         if (m_decoder->isUserAgentPresent() && session_id.empty()) {
 350             m_log.error("no active session");
 351             return sendResponse(
 352                 logoutRequest->getID(),
 353                 StatusCode::REQUESTER, StatusCode::UNKNOWN_PRINCIPAL, "No active session found in request.",
 354                 relayState.c_str(),
 355                 policy.getIssuerMetadata(),
 356                 application,
 357                 response,
 358                 true
 359                 );
 360         }
 361
 362         bool ownedName = false;
 363         NameID* nameid = logoutRequest->getNameID();
 364         if (!nameid) {
 365             // Check for EncryptedID.
 366             EncryptedID* encname = logoutRequest->getEncryptedID();
 367             if (encname) {
 368                 CredentialResolver* cr=application.getCredentialResolver();
 369                 if (!cr)
 370                     m_log.warn("found encrypted NameID, but no decryption credential was available");
 371                 else {
 372                     Locker credlocker(cr);
 373                     auto_ptr<MetadataCredentialCriteria> mcc(
 374                         policy.getIssuerMetadata() ? new MetadataCredentialCriteria(*policy.getIssuerMetadata()) : NULL
 375                         );
 376                     try {
 377                         auto_ptr<XMLObject> decryptedID(
 378                             encname->decrypt(
 379                                 *cr,
 380                                 application.getRelyingParty(policy.getIssuerMetadata() ? dynamic_cast<EntityDescriptor*>(policy.getIssuerMetadata()->getParent()) : NULL)->getXMLString("entityID").second,
 381                                 mcc.get()
 382                                 )
 383                             );
 384                         nameid = dynamic_cast<NameID*>(decryptedID.get());
 385                         if (nameid) {
 386                             ownedName = true;
 387                             decryptedID.release();
 388                         }
 389                     }
 390                     catch (exception& ex) {
 391                         m_log.error(ex.what());
 392                     }
 393                 }
 394             }
 395         }
 396         if (!nameid) {
 397             // No NameID, so must respond with an error.
 398             m_log.error("NameID not found in request");
 399             return sendResponse(
 400                 logoutRequest->getID(),
 401                 StatusCode::REQUESTER, StatusCode::UNKNOWN_PRINCIPAL, "NameID not found in request.",
 402                 relayState.c_str(),
 403                 policy.getIssuerMetadata(),
 404                 application,
 405                 response,
 406                 m_decoder->isUserAgentPresent()
 407                 );
 408         }
 409
 410         auto_ptr<NameID> namewrapper(ownedName ? nameid : NULL);
 411
 412         // Suck indexes out of the request for next steps.
 413         set<string> indexes;
 414         EntityDescriptor* entity = policy.getIssuerMetadata() ? dynamic_cast<EntityDescriptor*>(policy.getIssuerMetadata()->getParent()) : NULL;
 415         const vector<SessionIndex*> sindexes = logoutRequest->getSessionIndexs();
 416         for (vector<SessionIndex*>::const_iterator i = sindexes.begin(); i != sindexes.end(); ++i) {
 417             auto_ptr_char sindex((*i)->getSessionIndex());
 418             indexes.insert(sindex.get());
 419         }
 420
 421         // For a front-channel LogoutRequest, we have to match the information in the request
 422         // against the current session.
 423         if (!session_id.empty()) {
 424             if (!cache->matches(application, request, entity, *nameid, &indexes)) {
 425                 return sendResponse(
 426                     logoutRequest->getID(),
 427                     StatusCode::REQUESTER, StatusCode::REQUEST_DENIED, "Active session did not match logout request.",
 428                     relayState.c_str(),
 429                     policy.getIssuerMetadata(),
 430                     application,
 431                     response,
 432                     true
 433                     );
 434             }
 435
 436         }
 437
 438         // Now we perform "logout" by finding the matching sessions.
 439         vector<string> sessions;
 440         try {
 441             if (cacheex) {
 442                 time_t expires = logoutRequest->getNotOnOrAfter() ? logoutRequest->getNotOnOrAfterEpoch() : 0;
 443                 cacheex->logout(application, entity, *nameid, &indexes, expires, sessions);
 444                 m_log.debug("session cache returned %d sessions bound to NameID in logout request", sessions.size());
 445
 446                 // Now we actually terminate everything except for the active session,
 447                 // if this is front-channel, for notification purposes.
 448                 for (vector<string>::const_iterator sit = sessions.begin(); sit != sessions.end(); ++sit)
 449                     if (*sit != session_id)
 450                         cacheex->remove(application, sit->c_str());   // using the ID-based removal operation
 451             }
 452             else {
 453                 m_log.warn("session cache does not support extended API, can't implement indirect logout of sessions");
 454                 if (!session_id.empty())
 455                     sessions.push_back(session_id);
 456             }
 457         }
 458         catch (exception& ex) {
 459             m_log.error("error while logging out matching sessions: %s", ex.what());
 460             return sendResponse(
 461                 logoutRequest->getID(),
 462                 StatusCode::RESPONDER, NULL, ex.what(),
 463                 relayState.c_str(),
 464                 policy.getIssuerMetadata(),
 465                 application,
 466                 response,
 467                 m_decoder->isUserAgentPresent()
 468                 );
 469         }
 470
 471         if (m_decoder->isUserAgentPresent()) {
 472             // Pass control to the first front channel notification point, if any.
 473             map<string,string> parammap;
 474             if (!relayState.empty())
 475                 parammap["RelayState"] = relayState;
 476             auto_ptr_char entityID(entity ? entity->getEntityID() : NULL);
 477             if (entityID.get())
 478                 parammap["entityID"] = entityID.get();
 479             auto_ptr_char reqID(logoutRequest->getID());
 480             if (reqID.get())
 481                 parammap["ID"] = reqID.get();
 482             pair<bool,long> result = notifyFrontChannel(application, request, response, &parammap);
 483             if (result.first)
 484                 return result;
 485         }
 486
 487         // For back-channel requests, or if no front-channel notification is needed...
 488         bool worked1 = false,worked2 = false;
 489         worked1 = notifyBackChannel(application, request.getRequestURL(), sessions, false);
 490         if (!session_id.empty()) {
 491             // One last session to yoink...
 492             try {
 493                 cache->remove(application, request, &response);
 494                 worked2 = true;
 495             }
 496             catch (exception& ex) {
 497                 m_log.error("error removing active session (%s): %s", session_id.c_str(), ex.what());
 498             }
 499         }
 500
 501         return sendResponse(
 502             logoutRequest->getID(),
 503             (worked1 && worked2) ? StatusCode::SUCCESS : StatusCode::RESPONDER,
 504             (worked1 && worked2) ? NULL : StatusCode::PARTIAL_LOGOUT,
 505             NULL,
 506             relayState.c_str(),
 507             policy.getIssuerMetadata(),
 508             application,
 509             response,
 510             m_decoder->isUserAgentPresent()
 511             );
 512     }
 513
 514     // A LogoutResponse completes an SP-initiated logout sequence.
 515     const LogoutResponse* logoutResponse = dynamic_cast<LogoutResponse*>(msg.get());
 516     if (logoutResponse) {
 517         if (!policy.isAuthenticated()) {
 518             SecurityPolicyException ex("Security of LogoutResponse not established.");
 519             if (policy.getIssuerMetadata())
 520                 annotateException(&ex, policy.getIssuerMetadata()); // throws it
 521             ex.raise();
 522         }
 523         checkError(logoutResponse, policy.getIssuerMetadata()); // throws if Status doesn't look good...
 524
 525         // If relay state is set, recover the original return URL.
 526         if (!relayState.empty())
 527             recoverRelayState(application, request, response, relayState);
 528         if (!relayState.empty())
 529             return make_pair(true, response.sendRedirect(relayState.c_str()));
 530
 531         // Return template for completion of global logout, or redirect to homeURL.
 532         return sendLogoutPage(application, request, response, false, "Global logout completed.");
 533     }
 534
 535     FatalProfileException ex("Incoming message was not a samlp:LogoutRequest or samlp:LogoutResponse.");
 536     if (policy.getIssuerMetadata())
 537         annotateException(&ex, policy.getIssuerMetadata()); // throws it
 538     ex.raise();
 539     return make_pair(false,0L);  // never happen, satisfies compiler
 540 #else
 541     throw ConfigurationException("Cannot process logout message using lite version of shibsp library.");
 542 #endif
 543 }
 544
 545 #ifndef SHIBSP_LITE
 546
 547 pair<bool,long> SAML2Logout::sendResponse(
 548     const XMLCh* requestID,
 549     const XMLCh* code,
 550     const XMLCh* subcode,
 551     const char* msg,
 552     const char* relayState,
 553     const RoleDescriptor* role,
 554     const Application& application,
 555     HTTPResponse& httpResponse,
 556     bool front
 557     ) const
 558 {
 559     // Get endpoint and encoder to use.
 560     const EndpointType* ep = NULL;
 561     const MessageEncoder* encoder = NULL;
 562     if (front) {
 563         const IDPSSODescriptor* idp = dynamic_cast<const IDPSSODescriptor*>(role);
 564         for (vector<const XMLCh*>::const_iterator b = m_bindings.begin(); idp && b!=m_bindings.end(); ++b) {
 565             if (ep=EndpointManager<SingleLogoutService>(idp->getSingleLogoutServices()).getByBinding(*b)) {
 566                 map<const XMLCh*,MessageEncoder*>::const_iterator enc = m_encoders.find(*b);
 567                 if (enc!=m_encoders.end())
 568                     encoder = enc->second;
 569                 break;
 570             }
 571         }
 572         if (!ep || !encoder) {
 573             auto_ptr_char id(dynamic_cast<EntityDescriptor*>(role->getParent())->getEntityID());
 574             m_log.error("unable to locate compatible SLO service for provider (%s)", id.get());
 575             MetadataException ex("Unable to locate endpoint at IdP ($entityID) to send LogoutResponse.");
 576             annotateException(&ex, role);   // throws it
 577         }
 578     }
 579     else {
 580         encoder = m_encoders.begin()->second;
 581     }
 582
 583     // Prepare response.
 584     auto_ptr<LogoutResponse> logout(LogoutResponseBuilder::buildLogoutResponse());
 585     logout->setInResponseTo(requestID);
 586     if (ep) {
 587         const XMLCh* loc = ep->getResponseLocation();
 588         if (!loc || !*loc)
 589             loc = ep->getLocation();
 590         logout->setDestination(loc);
 591     }
 592     Issuer* issuer = IssuerBuilder::buildIssuer();
 593     logout->setIssuer(issuer);
 594     issuer->setName(application.getRelyingParty(dynamic_cast<EntityDescriptor*>(role->getParent()))->getXMLString("entityID").second);
 595     fillStatus(*logout.get(), code, subcode, msg);
 596
 597     auto_ptr_char dest(logout->getDestination());
 598
 599     long ret = sendMessage(*encoder, logout.get(), relayState, dest.get(), role, application, httpResponse);
 600     logout.release();  // freed by encoder
 601     return make_pair(true,ret);
 602 }
 603
 604 #endif