shibsp/handler/impl/MetadataGenerator.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  * MetadataGenerator.cpp
  23  *
  24  * Handler for generating "approximate" metadata based on SP configuration.
  25  */
  26
  27 #include "internal.h"
  28 #include "Application.h"
  29 #include "exceptions.h"
  30 #include "ServiceProvider.h"
  31 #include "SPRequest.h"
  32 #include "handler/RemotedHandler.h"
  33 #include "handler/SecuredHandler.h"
  34
  35 #include <boost/scoped_ptr.hpp>
  36 #include <boost/iterator/indirect_iterator.hpp>
  37
  38 #ifndef SHIBSP_LITE
  39 # include "attribute/resolver/AttributeExtractor.h"
  40 # include "metadata/MetadataProviderCriteria.h"
  41 # include <boost/ptr_container/ptr_vector.hpp>
  42 # include <saml/exceptions.h>
  43 # include <saml/SAMLConfig.h>
  44 # include <saml/signature/ContentReference.h>
  45 # include <saml/saml2/metadata/Metadata.h>
  46 # include <saml/saml2/metadata/MetadataProvider.h>
  47 # include <xmltooling/XMLToolingConfig.h>
  48 # include <xmltooling/encryption/Encryption.h>
  49 # include <xmltooling/security/Credential.h>
  50 # include <xmltooling/security/CredentialCriteria.h>
  51 # include <xmltooling/security/SecurityHelper.h>
  52 # include <xmltooling/signature/Signature.h>
  53 # include <xmltooling/util/ParserPool.h>
  54 # include <xmltooling/util/PathResolver.h>
  55 # include <xsec/dsig/DSIGConstants.hpp>
  56 # include <xercesc/framework/LocalFileInputSource.hpp>
  57 # include <xercesc/framework/Wrapper4InputSource.hpp>
  58 #endif
  59
  60
  61 using namespace shibsp;
  62 #ifndef SHIBSP_LITE
  63 using namespace opensaml::saml2md;
  64 using namespace opensaml;
  65 using namespace xmlsignature;
  66 using namespace xmlencryption;
  67 #endif
  68 using namespace xmltooling;
  69 using namespace boost;
  70 using namespace std;
  71
  72 namespace shibsp {
  73
  74 #if defined (_MSC_VER)
  75     #pragma warning( push )
  76     #pragma warning( disable : 4250 )
  77 #endif
  78
  79     class SHIBSP_API MetadataGenerator : public SecuredHandler, public RemotedHandler
  80     {
  81     public:
  82         MetadataGenerator(const DOMElement* e, const char* appId);
  83         virtual ~MetadataGenerator() {}
  84
  85         pair<bool,long> run(SPRequest& request, bool isHandler=true) const;
  86         void receive(DDF& in, ostream& out);
  87
  88     private:
  89         pair<bool,long> processMessage(
  90             const Application& application,
  91             const char* handlerURL,
  92             const char* entityID,
  93             HTTPResponse& httpResponse
  94             ) const;
  95
  96 #ifndef SHIBSP_LITE
  97         void registerEncryptionMethod(const XMLCh* alg) {
  98             if (XMLToolingConfig::getConfig().isXMLAlgorithmSupported(alg, XMLToolingConfig::ALGTYPE_ENCRYPT) ||
  99                 XMLToolingConfig::getConfig().isXMLAlgorithmSupported(alg, XMLToolingConfig::ALGTYPE_KEYENCRYPT) ||
 100                 XMLToolingConfig::getConfig().isXMLAlgorithmSupported(alg, XMLToolingConfig::ALGTYPE_KEYAGREE)) {
 101                 // Non-default builder needed to override namespace/prefix.
 102                 if (!m_encryptionBuilder)
 103                     m_encryptionBuilder = XMLObjectBuilder::getBuilder(xmltooling::QName(samlconstants::SAML20MD_NS, EncryptionMethod::LOCAL_NAME));
 104                 EncryptionMethod* em = dynamic_cast<EncryptionMethod*>(
 105                     m_encryptionBuilder->buildObject(
 106                         samlconstants::SAML20MD_NS, EncryptionMethod::LOCAL_NAME, samlconstants::SAML20MD_PREFIX
 107                         )
 108                     );
 109                 em->setAlgorithm(alg);
 110                 m_encryptions.push_back(em);
 111
 112                 if (XMLString::equals(alg, DSIGConstants::s_unicodeStrURIRSA_OAEP) ||
 113                         XMLString::equals(alg, DSIGConstants::s_unicodeStrURIRSA_OAEP_MGFP1)) {
 114                     // Check for non-support of SHA-256. This is a reasonable guess as to whether
 115                     // "all" standard digests and MGF variants will be supported or not, and if not, we
 116                     // explicitly advertise only SHA-1.
 117                     if (!XMLToolingConfig::getConfig().isXMLAlgorithmSupported(DSIGConstants::s_unicodeStrURISHA256, XMLToolingConfig::ALGTYPE_DIGEST)) {
 118                         if (!m_digestBuilder)
 119                             m_digestBuilder = XMLObjectBuilder::getBuilder(xmltooling::QName(samlconstants::SAML20MD_ALGSUPPORT_NS, DigestMethod::LOCAL_NAME));
 120
 121                         // Add MGF for new OAEP variant.
 122                         if (XMLString::equals(alg, DSIGConstants::s_unicodeStrURIRSA_OAEP)) {
 123                             MGF* mgf = MGFBuilder::buildMGF();
 124                             mgf->setAlgorithm(DSIGConstants::s_unicodeStrURIMGF1_SHA1);
 125                             em->getUnknownXMLObjects().push_back(mgf);
 126                         }
 127
 128                         DigestMethod* dm = dynamic_cast<DigestMethod*>(
 129                             m_digestBuilder->buildObject(xmlconstants::XMLSIG_NS, DigestMethod::LOCAL_NAME, xmlconstants::XMLSIG_PREFIX)
 130                             );
 131                         dm->setAlgorithm(DSIGConstants::s_unicodeStrURISHA1);
 132                         em->getUnknownXMLObjects().push_back(dm);
 133                     }
 134                 }
 135             }
 136         }
 137
 138         void registerDigestMethod(const XMLCh* alg) {
 139             if (XMLToolingConfig::getConfig().isXMLAlgorithmSupported(alg, XMLToolingConfig::ALGTYPE_DIGEST)) {
 140                 DigestMethod* dm = DigestMethodBuilder::buildDigestMethod();
 141                 dm->setAlgorithm(alg);
 142                 m_digests.push_back(dm);
 143             }
 144         }
 145
 146         void registerSigningMethod(const XMLCh* alg) {
 147             if (XMLToolingConfig::getConfig().isXMLAlgorithmSupported(alg, XMLToolingConfig::ALGTYPE_SIGN)) {
 148                 SigningMethod* sm = SigningMethodBuilder::buildSigningMethod();
 149                 sm->setAlgorithm(alg);
 150                 m_signings.push_back(sm);
 151             }
 152         }
 153
 154         string m_salt;
 155         short m_http,m_https;
 156         vector<string> m_bases;
 157         scoped_ptr<UIInfo> m_uiinfo;
 158         scoped_ptr<Organization> m_org;
 159         scoped_ptr<EntityAttributes> m_entityAttrs;
 160         ptr_vector<ContactPerson> m_contacts;
 161         ptr_vector<NameIDFormat> m_formats;
 162         ptr_vector<RequestedAttribute> m_reqAttrs;
 163         ptr_vector<AttributeConsumingService> m_attrConsumers;
 164         ptr_vector<EncryptionMethod> m_encryptions;
 165         ptr_vector<DigestMethod> m_digests;
 166         ptr_vector<SigningMethod> m_signings;
 167         const XMLObjectBuilder* m_encryptionBuilder;
 168         const XMLObjectBuilder* m_digestBuilder;
 169 #endif
 170     };
 171
 172 #if defined (_MSC_VER)
 173     #pragma warning( pop )
 174 #endif
 175
 176     Handler* SHIBSP_DLLLOCAL MetadataGeneratorFactory(const pair<const DOMElement*,const char*>& p)
 177     {
 178         return new MetadataGenerator(p.first, p.second);
 179     }
 180
 181 };
 182
 183 MetadataGenerator::MetadataGenerator(const DOMElement* e, const char* appId)
 184     : SecuredHandler(e, Category::getInstance(SHIBSP_LOGCAT".MetadataGenerator"))
 185 #ifndef SHIBSP_LITE
 186         ,m_http(0), m_https(0), m_encryptionBuilder(nullptr), m_digestBuilder(nullptr)
 187 #endif
 188 {
 189     string address(appId);
 190     address += getString("Location").second;
 191     setAddress(address.c_str());
 192
 193 #ifndef SHIBSP_LITE
 194     static XMLCh EndpointBase[] =           UNICODE_LITERAL_12(E,n,d,p,o,i,n,t,B,a,s,e);
 195
 196     pair<bool,const char*> salt = getString("salt");
 197     if (salt.first)
 198         m_salt = salt.second;
 199
 200     pair<bool,bool> flag = getBool("http");
 201     if (flag.first)
 202         m_http = flag.second ? 1 : -1;
 203     flag = getBool("https");
 204     if (flag.first)
 205         m_https = flag.second ? 1 : -1;
 206
 207     e = XMLHelper::getFirstChildElement(e);
 208     while (e) {
 209         if (XMLString::equals(e->getLocalName(), EndpointBase) && e->hasChildNodes()) {
 210             auto_ptr_char base(e->getFirstChild()->getNodeValue());
 211             if (base.get() && *base.get())
 212                 m_bases.push_back(base.get());
 213         }
 214         else {
 215             // Try and parse the object.
 216             auto_ptr<XMLObject> child(XMLObjectBuilder::buildOneFromElement(const_cast<DOMElement*>(e)));
 217             ContactPerson* cp = dynamic_cast<ContactPerson*>(child.get());
 218             if (cp) {
 219                 m_contacts.push_back(cp);
 220                 child.release();
 221             }
 222             else {
 223                 NameIDFormat* nif = dynamic_cast<NameIDFormat*>(child.get());
 224                 if (nif) {
 225                     m_formats.push_back(nif);
 226                     child.release();
 227                 }
 228                 else {
 229                     RequestedAttribute* req = dynamic_cast<RequestedAttribute*>(child.get());
 230                     if (req) {
 231                         m_reqAttrs.push_back(req);
 232                         child.release();
 233                     }
 234                     else {
 235                         AttributeConsumingService* acs = dynamic_cast<AttributeConsumingService*>(child.get());
 236                         if (acs) {
 237                             m_attrConsumers.push_back(acs);
 238                             child.release();
 239                         }
 240                         else {
 241                             UIInfo* info = dynamic_cast<UIInfo*>(child.get());
 242                             if (info) {
 243                                 if (!m_uiinfo) {
 244                                     m_uiinfo.reset(info);
 245                                     child.release();
 246                                 }
 247                                 else {
 248                                     m_log.warn("skipping duplicate UIInfo element");
 249                                 }
 250                             }
 251                             else {
 252                                 Organization* org = dynamic_cast<Organization*>(child.get());
 253                                 if (org) {
 254                                     if (!m_org) {
 255                                         m_org.reset(org);
 256                                         child.release();
 257                                     }
 258                                     else {
 259                                         m_log.warn("skipping duplicate Organization element");
 260                                     }
 261                                 }
 262                                 else {
 263                                     EntityAttributes* ea = dynamic_cast<EntityAttributes*>(child.get());
 264                                     if (ea) {
 265                                         if (!m_entityAttrs) {
 266                                             m_entityAttrs.reset(ea);
 267                                             child.release();
 268                                         }
 269                                         else {
 270                                             m_log.warn("skipping duplicate EntityAttributes element");
 271                                         }
 272                                     }
 273                                     else {
 274                                         EncryptionMethod* em = dynamic_cast<EncryptionMethod*>(child.get());
 275                                         if (em) {
 276                                             m_encryptions.push_back(em);
 277                                             child.release();
 278                                         }
 279                                         else {
 280                                             DigestMethod* dm = dynamic_cast<DigestMethod*>(child.get());
 281                                             if (dm) {
 282                                                 m_digests.push_back(dm);
 283                                                 child.release();
 284                                             }
 285                                             else {
 286                                                 SigningMethod* sm = dynamic_cast<SigningMethod*>(child.get());
 287                                                 if (sm) {
 288                                                     m_signings.push_back(sm);
 289                                                     child.release();
 290                                                 }
 291                                             }
 292                                         }
 293                                     }
 294                                 }
 295                             }
 296                         }
 297                     }
 298                 }
 299             }
 300         }
 301         e = XMLHelper::getNextSiblingElement(e);
 302     }
 303
 304     // Default in precedence rules for various algorithms.
 305     if (m_encryptions.empty()) {
 306 #ifdef XSEC_OPENSSL_HAVE_GCM
 307         registerEncryptionMethod(DSIGConstants::s_unicodeStrURIAES128_GCM);
 308         registerEncryptionMethod(DSIGConstants::s_unicodeStrURIAES192_GCM);
 309         registerEncryptionMethod(DSIGConstants::s_unicodeStrURIAES256_GCM);
 310 #endif
 311 #ifdef XSEC_OPENSSL_HAVE_AES
 312         registerEncryptionMethod(DSIGConstants::s_unicodeStrURIAES128_CBC);
 313         registerEncryptionMethod(DSIGConstants::s_unicodeStrURIAES192_CBC);
 314         registerEncryptionMethod(DSIGConstants::s_unicodeStrURIAES256_CBC);
 315 #endif
 316         registerEncryptionMethod(DSIGConstants::s_unicodeStrURI3DES_CBC);
 317 #ifdef URI_ID_RSA_OAEP
 318         registerEncryptionMethod(DSIGConstants::s_unicodeStrURIRSA_OAEP);
 319 #endif
 320         registerEncryptionMethod(DSIGConstants::s_unicodeStrURIRSA_OAEP_MGFP1);
 321         registerEncryptionMethod(DSIGConstants::s_unicodeStrURIRSA_1_5);
 322     }
 323
 324     if (m_digests.empty()) {
 325         registerDigestMethod(DSIGConstants::s_unicodeStrURISHA512);
 326         registerDigestMethod(DSIGConstants::s_unicodeStrURISHA384);
 327         registerDigestMethod(DSIGConstants::s_unicodeStrURISHA256);
 328         registerDigestMethod(DSIGConstants::s_unicodeStrURISHA224);
 329         registerDigestMethod(DSIGConstants::s_unicodeStrURISHA1);
 330     }
 331
 332     if (m_signings.empty()) {
 333 #ifdef XSEC_OPENSSL_HAVE_EC
 334         registerSigningMethod(DSIGConstants::s_unicodeStrURIECDSA_SHA512);
 335         registerSigningMethod(DSIGConstants::s_unicodeStrURIECDSA_SHA384);
 336         registerSigningMethod(DSIGConstants::s_unicodeStrURIECDSA_SHA256);
 337 # ifdef URI_ID_ECDSA_SHA224
 338         registerSigningMethod(DSIGConstants::s_unicodeStrURIECDSA_SHA224);
 339 # endif
 340 #endif
 341         registerSigningMethod(DSIGConstants::s_unicodeStrURIRSA_SHA512);
 342         registerSigningMethod(DSIGConstants::s_unicodeStrURIRSA_SHA384);
 343         registerSigningMethod(DSIGConstants::s_unicodeStrURIRSA_SHA256);
 344
 345 #ifdef URI_ID_DSA_SHA256
 346         registerSigningMethod(DSIGConstants::s_unicodeStrURIDSA_SHA256);
 347 #endif
 348
 349 #ifdef XSEC_OPENSSL_HAVE_EC
 350         registerSigningMethod(DSIGConstants::s_unicodeStrURIECDSA_SHA1);
 351 #endif
 352         registerSigningMethod(DSIGConstants::s_unicodeStrURIRSA_SHA1);
 353         registerSigningMethod(DSIGConstants::s_unicodeStrURIDSA_SHA1);
 354     }
 355 #endif
 356 }
 357
 358 pair<bool,long> MetadataGenerator::run(SPRequest& request, bool isHandler) const
 359 {
 360     // Check ACL in base class.
 361     pair<bool,long> ret = SecuredHandler::run(request, isHandler);
 362     if (ret.first)
 363         return ret;
 364
 365     try {
 366         if (SPConfig::getConfig().isEnabled(SPConfig::OutOfProcess)) {
 367             // When out of process, we run natively and directly process the message.
 368             return processMessage(request.getApplication(), request.getHandlerURL(), request.getParameter("entityID"), request);
 369         }
 370         else {
 371             // When not out of process, we remote all the message processing.
 372             DDF out,in = DDF(m_address.c_str());
 373             in.addmember("application_id").string(request.getApplication().getId());
 374             in.addmember("handler_url").string(request.getHandlerURL());
 375             if (request.getParameter("entityID"))
 376                 in.addmember("entity_id").string(request.getParameter("entityID"));
 377             DDFJanitor jin(in), jout(out);
 378
 379             out = request.getServiceProvider().getListenerService()->send(in);
 380             return unwrap(request, out);
 381         }
 382     }
 383     catch (std::exception& ex) {
 384         m_log.error("error while processing request: %s", ex.what());
 385         istringstream msg("Metadata Request Failed");
 386         return make_pair(true, request.sendResponse(msg, HTTPResponse::XMLTOOLING_HTTP_STATUS_ERROR));
 387     }
 388 }
 389
 390 void MetadataGenerator::receive(DDF& in, ostream& out)
 391 {
 392     // Find application.
 393     const char* aid = in["application_id"].string();
 394     const char* hurl = in["handler_url"].string();
 395     const Application* app = aid ? SPConfig::getConfig().getServiceProvider()->getApplication(aid) : nullptr;
 396     if (!app) {
 397         // Something's horribly wrong.
 398         m_log.error("couldn't find application (%s) for metadata request", aid ? aid : "(missing)");
 399         throw ConfigurationException("Unable to locate application for metadata request, deleted?");
 400     }
 401     else if (!hurl) {
 402         throw ConfigurationException("Missing handler_url parameter in remoted method call.");
 403     }
 404
 405     // Wrap a response shim.
 406     DDF ret(nullptr);
 407     DDFJanitor jout(ret);
 408     scoped_ptr<HTTPResponse> resp(getResponse(ret));
 409
 410     // Since we're remoted, the result should either be a throw, a false/0 return,
 411     // which we just return as an empty structure, or a response/redirect,
 412     // which we capture in the facade and send back.
 413     processMessage(*app, hurl, in["entity_id"].string(), *resp);
 414     out << ret;
 415 }
 416
 417 pair<bool,long> MetadataGenerator::processMessage(
 418     const Application& application, const char* handlerURL, const char* entityID, HTTPResponse& httpResponse
 419     ) const
 420 {
 421 #ifndef SHIBSP_LITE
 422     m_log.debug("processing metadata request");
 423
 424     const PropertySet* relyingParty = nullptr;
 425     if (entityID) {
 426         MetadataProvider* m = application.getMetadataProvider();
 427         Locker locker(m);
 428         MetadataProviderCriteria mc(application, entityID);
 429         relyingParty = application.getRelyingParty(m->getEntityDescriptor(mc).first);
 430     }
 431     else {
 432         relyingParty = &application;
 433     }
 434
 435     scoped_ptr<EntityDescriptor> entity;
 436     pair<bool,const char*> prop = getString("template");
 437     if (prop.first) {
 438         // Load a template to use for our metadata.
 439         string templ(prop.second);
 440         XMLToolingConfig::getConfig().getPathResolver()->resolve(templ, PathResolver::XMLTOOLING_CFG_FILE);
 441         auto_ptr_XMLCh widenit(templ.c_str());
 442         LocalFileInputSource src(widenit.get());
 443         Wrapper4InputSource dsrc(&src,false);
 444         DOMDocument* doc = XMLToolingConfig::getConfig().getParser().parse(dsrc);
 445         XercesJanitor<DOMDocument> docjan(doc);
 446         auto_ptr<XMLObject> xmlobj(XMLObjectBuilder::buildOneFromElement(doc->getDocumentElement(), true));
 447         docjan.release();
 448         entity.reset(dynamic_cast<EntityDescriptor*>(xmlobj.get()));
 449         xmlobj.release();
 450         if (!entity)
 451             throw ConfigurationException("Template file ($1) did not contain an EntityDescriptor", params(1, templ.c_str()));
 452     }
 453     else {
 454         entity.reset(EntityDescriptorBuilder::buildEntityDescriptor());
 455     }
 456
 457     // We always have extensions for algorithm support.
 458     if (!entity->getExtensions()) {
 459         entity->setExtensions(ExtensionsBuilder::buildExtensions());
 460         entity->getExtensions()->addNamespace(Namespace(samlconstants::SAML20MD_ALGSUPPORT_NS, samlconstants::SAML20MD_ALGSUPPORT_PREFIX));
 461     }
 462
 463     if (!entity->getID()) {
 464         string hashinput = m_salt + relyingParty->getString("entityID").second;
 465         string hashed = '_' + SecurityHelper::doHash("SHA1", hashinput.c_str(), hashinput.length());
 466         auto_ptr_XMLCh widenit(hashed.c_str());
 467         entity->setID(widenit.get());
 468     }
 469
 470     pair<bool,unsigned int> cache = getUnsignedInt("cacheDuration");
 471     if (cache.first) {
 472         entity->setCacheDuration(cache.second);
 473     }
 474     cache = getUnsignedInt("validUntil");
 475     if (cache.first)
 476         entity->setValidUntil(time(nullptr) + cache.second);
 477     entity->setEntityID(relyingParty->getXMLString("entityID").second);
 478
 479     if (m_org && !entity->getOrganization())
 480         entity->setOrganization(m_org->cloneOrganization());
 481
 482     for (ptr_vector<ContactPerson>::const_iterator cp = m_contacts.begin(); cp != m_contacts.end(); ++cp)
 483         entity->getContactPersons().push_back(cp->cloneContactPerson());
 484
 485     if (m_entityAttrs) {
 486         entity->getExtensions()->getUnknownXMLObjects().push_back(m_entityAttrs->cloneEntityAttributes());
 487     }
 488
 489     SPSSODescriptor* role;
 490     if (entity->getSPSSODescriptors().empty()) {
 491         role = SPSSODescriptorBuilder::buildSPSSODescriptor();
 492         entity->getSPSSODescriptors().push_back(role);
 493     }
 494     else {
 495         role = entity->getSPSSODescriptors().front();
 496     }
 497
 498     for (ptr_vector<NameIDFormat>::const_iterator nif = m_formats.begin(); nif != m_formats.end(); ++nif)
 499         role->getNameIDFormats().push_back(nif->cloneNameIDFormat());
 500
 501     if (m_uiinfo) {
 502         if (!role->getExtensions())
 503             role->setExtensions(ExtensionsBuilder::buildExtensions());
 504         role->getExtensions()->getUnknownXMLObjects().push_back(m_uiinfo->cloneUIInfo());
 505     }
 506
 507     if (!m_digests.empty() || !m_signings.empty()) {
 508         for (ptr_vector<DigestMethod>::const_iterator dm = m_digests.begin(); dm != m_digests.end(); ++dm)
 509             entity->getExtensions()->getUnknownXMLObjects().push_back(dm->cloneDigestMethod());
 510         for (ptr_vector<SigningMethod>::const_iterator sm = m_signings.begin(); sm != m_signings.end(); ++sm)
 511             entity->getExtensions()->getUnknownXMLObjects().push_back(sm->cloneSigningMethod());
 512     }
 513
 514     for (ptr_vector<AttributeConsumingService>::const_iterator acs = m_attrConsumers.begin(); acs != m_attrConsumers.end(); ++acs)
 515         role->getAttributeConsumingServices().push_back(acs->cloneAttributeConsumingService());
 516
 517     if (!m_reqAttrs.empty()) {
 518         int index = 1;
 519         const vector<AttributeConsumingService*>& svcs = const_cast<const SPSSODescriptor*>(role)->getAttributeConsumingServices();
 520         for (indirect_iterator<vector<AttributeConsumingService*>::const_iterator> s = make_indirect_iterator(svcs.begin());
 521                 s != make_indirect_iterator(svcs.end()); ++s) {
 522             pair<bool,int> i = s->getIndex();
 523             if (i.first && index == i.second)
 524                 index = i.second + 1;
 525         }
 526         AttributeConsumingService* svc = AttributeConsumingServiceBuilder::buildAttributeConsumingService();
 527         role->getAttributeConsumingServices().push_back(svc);
 528         svc->setIndex(index);
 529         ServiceName* sn = ServiceNameBuilder::buildServiceName();
 530         svc->getServiceNames().push_back(sn);
 531         sn->setName(entity->getEntityID());
 532         static const XMLCh english[] = UNICODE_LITERAL_2(e,n);
 533         sn->setLang(english);
 534         for (ptr_vector<RequestedAttribute>::const_iterator req = m_reqAttrs.begin(); req != m_reqAttrs.end(); ++req)
 535             svc->getRequestedAttributes().push_back(req->cloneRequestedAttribute());
 536     }
 537
 538     // Policy flags.
 539     prop = relyingParty->getString("signing");
 540     if (prop.first && (!strcmp(prop.second,"true") || !strcmp(prop.second,"front")))
 541         role->AuthnRequestsSigned(true);
 542     pair<bool,bool> flagprop = relyingParty->getBool("requireSignedAssertions");
 543     if (flagprop.first && flagprop.second)
 544         role->WantAssertionsSigned(true);
 545
 546     // Ask each handler to generate itself.
 547     vector<const Handler*> handlers;
 548     application.getHandlers(handlers);
 549     for (indirect_iterator<vector<const Handler*>::const_iterator> h = make_indirect_iterator(handlers.begin());
 550             h != make_indirect_iterator(handlers.end()); ++h) {
 551         if (m_bases.empty()) {
 552             if (strncmp(handlerURL, "https", 5) == 0) {
 553                 if (m_https >= 0)
 554                     h->generateMetadata(*role, handlerURL);
 555                 if (m_http == 1) {
 556                     string temp(handlerURL);
 557                     temp.erase(4, 1);
 558                     h->generateMetadata(*role, temp.c_str());
 559                 }
 560             }
 561             else {
 562                 if (m_http >= 0)
 563                     h->generateMetadata(*role, handlerURL);
 564                 if (m_https == 1) {
 565                     string temp(handlerURL);
 566                     temp.insert(temp.begin() + 4, 's');
 567                     h->generateMetadata(*role, temp.c_str());
 568                 }
 569             }
 570         }
 571         else {
 572             for (vector<string>::const_iterator b = m_bases.begin(); b != m_bases.end(); ++b)
 573                 h->generateMetadata(*role, b->c_str());
 574         }
 575     }
 576
 577     AttributeExtractor* extractor = application.getAttributeExtractor();
 578     if (extractor) {
 579         Locker extlocker(extractor);
 580         extractor->generateMetadata(*role);
 581     }
 582
 583     CredentialResolver* credResolver = application.getCredentialResolver();
 584     if (credResolver) {
 585         Locker credLocker(credResolver);
 586         CredentialCriteria cc;
 587         prop = relyingParty->getString("keyName");
 588         if (prop.first)
 589             cc.getKeyNames().insert(prop.second);
 590         vector<const Credential*> signingcreds,enccreds;
 591         cc.setUsage(Credential::SIGNING_CREDENTIAL);
 592         credResolver->resolve(signingcreds, &cc);
 593         cc.setUsage(Credential::ENCRYPTION_CREDENTIAL);
 594         credResolver->resolve(enccreds, &cc);
 595
 596         for (vector<const Credential*>::const_iterator c = signingcreds.begin(); c != signingcreds.end(); ++c) {
 597             KeyInfo* kinfo = (*c)->getKeyInfo();
 598             if (kinfo) {
 599                 KeyDescriptor* kd = KeyDescriptorBuilder::buildKeyDescriptor();
 600                 kd->setKeyInfo(kinfo);
 601                 const XMLCh* use = KeyDescriptor::KEYTYPE_SIGNING;
 602                 for (vector<const Credential*>::iterator match = enccreds.begin(); match != enccreds.end(); ++match) {
 603                     if (*match == *c) {
 604                         use = nullptr;
 605                         enccreds.erase(match);
 606                         break;
 607                     }
 608                 }
 609                 kd->setUse(use);
 610                 if (!use) {
 611                     for (ptr_vector<EncryptionMethod>::const_iterator em = m_encryptions.begin(); em != m_encryptions.end(); ++em)
 612                         kd->getEncryptionMethods().push_back(em->cloneEncryptionMethod());
 613                 }
 614                 role->getKeyDescriptors().push_back(kd);
 615             }
 616         }
 617
 618         for (vector<const Credential*>::const_iterator c = enccreds.begin(); c != enccreds.end(); ++c) {
 619             KeyInfo* kinfo = (*c)->getKeyInfo();
 620             if (kinfo) {
 621                 KeyDescriptor* kd = KeyDescriptorBuilder::buildKeyDescriptor();
 622                 kd->setUse(KeyDescriptor::KEYTYPE_ENCRYPTION);
 623                 kd->setKeyInfo(kinfo);
 624                 for (ptr_vector<EncryptionMethod>::const_iterator em = m_encryptions.begin(); em != m_encryptions.end(); ++em)
 625                     kd->getEncryptionMethods().push_back(em->cloneEncryptionMethod());
 626                 role->getKeyDescriptors().push_back(kd);
 627             }
 628         }
 629     }
 630
 631     // Stream for response.
 632     stringstream s;
 633
 634     // Self-sign it?
 635     pair<bool,bool> flag = getBool("signing");
 636     if (flag.first && flag.second) {
 637         if (credResolver) {
 638             Locker credLocker(credResolver);
 639             // Fill in criteria to use.
 640             CredentialCriteria cc;
 641             cc.setUsage(Credential::SIGNING_CREDENTIAL);
 642             prop = getString("keyName");
 643             if (prop.first)
 644                 cc.getKeyNames().insert(prop.second);
 645             pair<bool,const XMLCh*> sigalg = getXMLString("signingAlg");
 646             pair<bool,const XMLCh*> digalg = getXMLString("digestAlg");
 647             if (sigalg.first)
 648                 cc.setXMLAlgorithm(sigalg.second);
 649             const Credential* cred = credResolver->resolve(&cc);
 650             if (!cred)
 651                 throw XMLSecurityException("Unable to obtain signing credential to use.");
 652
 653             // Pretty-print it first and then read it back in.
 654             stringstream pretty;
 655             XMLHelper::serialize(entity->marshall(), pretty, true);
 656             DOMDocument* prettydoc = XMLToolingConfig::getConfig().getParser().parse(pretty);
 657             scoped_ptr<XMLObject> prettyentity(XMLObjectBuilder::buildOneFromElement(prettydoc->getDocumentElement(), true));
 658
 659             Signature* sig = SignatureBuilder::buildSignature();
 660             dynamic_cast<EntityDescriptor*>(prettyentity.get())->setSignature(sig);
 661             if (sigalg.first)
 662                 sig->setSignatureAlgorithm(sigalg.second);
 663             if (digalg.first) {
 664                 opensaml::ContentReference* cr = dynamic_cast<opensaml::ContentReference*>(sig->getContentReference());
 665                 if (cr)
 666                     cr->setDigestAlgorithm(digalg.second);
 667             }
 668
 669             // Sign while marshalling.
 670             vector<Signature*> sigs(1,sig);
 671             prettyentity->marshall(prettydoc,&sigs,cred);
 672             s << *prettyentity;
 673         }
 674         else {
 675             throw FatalProfileException("Can't self-sign metadata, no credential resolver found.");
 676         }
 677     }
 678     else {
 679         // Pretty-print it directly to client.
 680         XMLHelper::serialize(entity->marshall(), s, true);
 681     }
 682
 683     prop = getString("mimeType");
 684     httpResponse.setContentType(prop.first ? prop.second : "application/samlmetadata+xml");
 685     return make_pair(true, httpResponse.sendResponse(s));
 686 #else
 687     return make_pair(false, 0L);
 688 #endif
 689 }