shibsp/SPConfig.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  * SPConfig.cpp
  23  *
  24  * Library configuration.
  25  */
  26
  27 #include "internal.h"
  28
  29 #if defined(XMLTOOLING_LOG4SHIB)
  30 # ifndef SHIBSP_LOG4SHIB
  31 #  error "Logging library mismatch (XMLTooling is using log4shib)."
  32 # endif
  33 #elif defined(XMLTOOLING_LOG4CPP)
  34 # ifndef SHIBSP_LOG4CPP
  35 #  error "Logging library mismatch (XMLTooling is using log4cpp)."
  36 # endif
  37 #else
  38 # error "No supported logging library."
  39 #endif
  40
  41 #include "exceptions.h"
  42 #include "version.h"
  43 #include "AccessControl.h"
  44 #include "RequestMapper.h"
  45 #include "ServiceProvider.h"
  46 #include "SessionCache.h"
  47 #include "SPConfig.h"
  48 #include "attribute/Attribute.h"
  49 #include "binding/ProtocolProvider.h"
  50 #include "handler/LogoutInitiator.h"
  51 #include "handler/SessionInitiator.h"
  52 #include "remoting/ListenerService.h"
  53
  54 #ifndef SHIBSP_LITE
  55 # include "attribute/AttributeDecoder.h"
  56 # include "attribute/filtering/AttributeFilter.h"
  57 # include "attribute/filtering/MatchFunctor.h"
  58 # include "attribute/resolver/AttributeExtractor.h"
  59 # include "attribute/resolver/AttributeResolver.h"
  60 # include "binding/ArtifactResolver.h"
  61 # include "metadata/MetadataExt.h"
  62 # include "security/PKIXTrustEngine.h"
  63 # include "security/SecurityPolicyProvider.h"
  64 # include <saml/version.h>
  65 # include <saml/SAMLConfig.h>
  66 #endif
  67
  68 #include <ctime>
  69 #include <xercesc/util/XMLUniDefs.hpp>
  70 #include <xmltooling/version.h>
  71 #include <xmltooling/XMLToolingConfig.h>
  72 #include <xmltooling/util/NDC.h>
  73 #include <xmltooling/util/ParserPool.h>
  74 #include <xmltooling/util/PathResolver.h>
  75 #include <xmltooling/util/TemplateEngine.h>
  76 #include <xmltooling/util/Threads.h>
  77 #include <xmltooling/util/XMLHelper.h>
  78
  79 using namespace shibsp;
  80 using namespace opensaml;
  81 using namespace xmltooling;
  82 using namespace boost;
  83 using namespace std;
  84
  85 DECL_XMLTOOLING_EXCEPTION_FACTORY(AttributeException,shibsp);
  86 DECL_XMLTOOLING_EXCEPTION_FACTORY(AttributeExtractionException,shibsp);
  87 DECL_XMLTOOLING_EXCEPTION_FACTORY(AttributeFilteringException,shibsp);
  88 DECL_XMLTOOLING_EXCEPTION_FACTORY(AttributeResolutionException,shibsp);
  89 DECL_XMLTOOLING_EXCEPTION_FACTORY(ConfigurationException,shibsp);
  90 DECL_XMLTOOLING_EXCEPTION_FACTORY(ListenerException,shibsp);
  91
  92 #ifdef SHIBSP_LITE
  93 DECL_XMLTOOLING_EXCEPTION_FACTORY(BindingException,opensaml);
  94 DECL_XMLTOOLING_EXCEPTION_FACTORY(SecurityPolicyException,opensaml);
  95 DECL_XMLTOOLING_EXCEPTION_FACTORY(ProfileException,opensaml);
  96 DECL_XMLTOOLING_EXCEPTION_FACTORY(FatalProfileException,opensaml);
  97 DECL_XMLTOOLING_EXCEPTION_FACTORY(RetryableProfileException,opensaml);
  98 DECL_XMLTOOLING_EXCEPTION_FACTORY(MetadataException,opensaml::saml2md);
  99 #endif
 100
 101 namespace shibsp {
 102     class SHIBSP_DLLLOCAL SPInternalConfig : public SPConfig
 103     {
 104     public:
 105         SPInternalConfig() : m_initCount(0), m_lock(Mutex::create()) {}
 106         ~SPInternalConfig() {}
 107
 108         bool init(const char* catalog_path=nullptr, const char* inst_prefix=nullptr);
 109         void term();
 110
 111     private:
 112         int m_initCount;
 113         scoped_ptr<Mutex> m_lock;
 114     };
 115
 116     SPInternalConfig g_config;
 117 }
 118
 119 SPConfig& SPConfig::getConfig()
 120 {
 121     return g_config;
 122 }
 123
 124 SPConfig::SPConfig() : attribute_value_delimeter(';'), m_serviceProvider(nullptr),
 125 #ifndef SHIBSP_LITE
 126     m_artifactResolver(nullptr),
 127 #endif
 128     m_features(0), m_configDoc(nullptr)
 129 {
 130 }
 131
 132 SPConfig::~SPConfig()
 133 {
 134 }
 135
 136 void SPConfig::setFeatures(unsigned long enabled)
 137 {
 138     m_features = enabled;
 139 }
 140
 141 unsigned long SPConfig::getFeatures() const {
 142     return m_features;
 143 }
 144
 145 bool SPConfig::isEnabled(components_t feature) const
 146 {
 147     return (m_features & feature)>0;
 148 }
 149
 150 ServiceProvider* SPConfig::getServiceProvider() const
 151 {
 152     return m_serviceProvider;
 153 }
 154
 155 void SPConfig::setServiceProvider(ServiceProvider* serviceProvider)
 156 {
 157     delete m_serviceProvider;
 158     m_serviceProvider = serviceProvider;
 159 }
 160
 161 #ifndef SHIBSP_LITE
 162 void SPConfig::setArtifactResolver(MessageDecoder::ArtifactResolver* artifactResolver)
 163 {
 164     delete m_artifactResolver;
 165     m_artifactResolver = artifactResolver;
 166 }
 167
 168 const MessageDecoder::ArtifactResolver* SPConfig::getArtifactResolver() const
 169 {
 170     return m_artifactResolver;
 171 }
 172 #endif
 173
 174 bool SPConfig::init(const char* catalog_path, const char* inst_prefix)
 175 {
 176     if (!inst_prefix)
 177         inst_prefix = getenv("SHIBSP_PREFIX");
 178     if (!inst_prefix)
 179         inst_prefix = SHIBSP_PREFIX;
 180     std::string inst_prefix2;
 181     while (*inst_prefix) {
 182         inst_prefix2.push_back((*inst_prefix=='\\') ? ('/') : (*inst_prefix));
 183         ++inst_prefix;
 184     }
 185
 186     const char* loglevel=getenv("SHIBSP_LOGGING");
 187     if (!loglevel)
 188         loglevel = SHIBSP_LOGGING;
 189     std::string ll(loglevel);
 190     PathResolver localpr;
 191     localpr.setDefaultPrefix(inst_prefix2.c_str());
 192     inst_prefix = getenv("SHIBSP_CFGDIR");
 193     if (!inst_prefix || !*inst_prefix)
 194         inst_prefix = SHIBSP_CFGDIR;
 195     localpr.setCfgDir(inst_prefix);
 196     XMLToolingConfig::getConfig().log_config(localpr.resolve(ll, PathResolver::XMLTOOLING_CFG_FILE, PACKAGE_NAME).c_str());
 197
 198     Category& log=Category::getInstance(SHIBSP_LOGCAT".Config");
 199     log.debug("%s library initialization started", PACKAGE_STRING);
 200
 201 #ifndef SHIBSP_LITE
 202     XMLToolingConfig::getConfig().user_agent = string(PACKAGE_NAME) + '/' + PACKAGE_VERSION +
 203         " OpenSAML/" + gOpenSAMLDotVersionStr +
 204         " XMLTooling/" + gXMLToolingDotVersionStr +
 205         " XML-Security-C/" + XSEC_FULLVERSIONDOT +
 206         " Xerces-C/" + XERCES_FULLVERSIONDOT +
 207 #if defined(LOG4SHIB_VERSION)
 208         " log4shib/" + LOG4SHIB_VERSION;
 209 #elif defined(LOG4CPP_VERSION)
 210         " log4cpp/" + LOG4CPP_VERSION;
 211 #endif
 212     if (!SAMLConfig::getConfig().init()) {
 213         log.fatal("failed to initialize OpenSAML library");
 214         return false;
 215     }
 216 #else
 217     XMLToolingConfig::getConfig().user_agent = string(PACKAGE_NAME) + '/' + PACKAGE_VERSION +
 218         " XMLTooling/" + gXMLToolingDotVersionStr +
 219         " Xerces-C/" + XERCES_FULLVERSIONDOT +
 220 #if defined(LOG4SHIB_VERSION)
 221         " log4shib/" + LOG4SHIB_VERSION;
 222 #elif defined(LOG4CPP_VERSION)
 223         " log4cpp/" + LOG4CPP_VERSION;
 224 #endif
 225     if (!XMLToolingConfig::getConfig().init()) {
 226         log.fatal("failed to initialize XMLTooling library");
 227         return false;
 228     }
 229 #endif
 230     if (!catalog_path)
 231         catalog_path = getenv("SHIBSP_SCHEMAS");
 232     if (!catalog_path)
 233         catalog_path = SHIBSP_SCHEMAS;
 234     if (!XMLToolingConfig::getConfig().getValidatingParser().loadCatalogs(catalog_path)) {
 235         log.warn("failed to load schema catalogs into validating parser");
 236     }
 237
 238     PathResolver* pr = XMLToolingConfig::getConfig().getPathResolver();
 239     pr->setDefaultPackageName(PACKAGE_NAME);
 240     pr->setDefaultPrefix(inst_prefix2.c_str());
 241     pr->setCfgDir(inst_prefix);
 242     inst_prefix = getenv("SHIBSP_LIBDIR");
 243     if (!inst_prefix || !*inst_prefix)
 244         inst_prefix = SHIBSP_LIBDIR;
 245     pr->setLibDir(inst_prefix);
 246     inst_prefix = getenv("SHIBSP_LOGDIR");
 247     if (!inst_prefix || !*inst_prefix)
 248         inst_prefix = SHIBSP_LOGDIR;
 249     pr->setLogDir(inst_prefix);
 250     inst_prefix = getenv("SHIBSP_RUNDIR");
 251     if (!inst_prefix || !*inst_prefix)
 252         inst_prefix = SHIBSP_RUNDIR;
 253     pr->setRunDir(inst_prefix);
 254     inst_prefix = getenv("SHIBSP_CACHEDIR");
 255     if (!inst_prefix || !*inst_prefix)
 256         inst_prefix = SHIBSP_CACHEDIR;
 257     pr->setCacheDir(inst_prefix);
 258     inst_prefix = getenv("SHIBSP_XMLDIR");
 259     if (!inst_prefix || !*inst_prefix)
 260         inst_prefix = SHIBSP_XMLDIR;
 261     pr->setXMLDir(inst_prefix);
 262
 263     XMLToolingConfig::getConfig().setTemplateEngine(new TemplateEngine());
 264     XMLToolingConfig::getConfig().getTemplateEngine()->setTagPrefix("shibmlp");
 265
 266     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(AttributeException,shibsp);
 267     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(AttributeExtractionException,shibsp);
 268     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(AttributeFilteringException,shibsp);
 269     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(AttributeResolutionException,shibsp);
 270     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(ConfigurationException,shibsp);
 271     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(ListenerException,shibsp);
 272
 273 #ifdef SHIBSP_LITE
 274     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(BindingException,opensaml);
 275     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(SecurityPolicyException,opensaml);
 276     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(ProfileException,opensaml);
 277     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(FatalProfileException,opensaml);
 278     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(RetryableProfileException,opensaml);
 279     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(MetadataException,opensaml::saml2md);
 280 #endif
 281
 282 #ifndef SHIBSP_LITE
 283     if (isEnabled(Metadata))
 284         registerMetadataExtClasses();
 285     if (isEnabled(Trust))
 286         registerPKIXTrustEngine();
 287 #endif
 288
 289     registerAttributeFactories();
 290
 291     if (isEnabled(Handlers)) {
 292         registerHandlers();
 293         registerLogoutInitiators();
 294         registerSessionInitiators();
 295         registerProtocolProviders();
 296     }
 297
 298     registerServiceProviders();
 299
 300 #ifndef SHIBSP_LITE
 301     if (isEnabled(AttributeResolution)) {
 302         registerAttributeExtractors();
 303         registerAttributeDecoders();
 304         registerAttributeResolvers();
 305         registerAttributeFilters();
 306         registerMatchFunctors();
 307     }
 308     if (isEnabled(Logging)) {
 309         registerEvents();
 310     }
 311     registerSecurityPolicyProviders();
 312 #endif
 313
 314     if (isEnabled(Listener))
 315         registerListenerServices();
 316
 317     if (isEnabled(RequestMapping)) {
 318         registerAccessControls();
 319         registerRequestMappers();
 320     }
 321
 322     if (isEnabled(Caching))
 323         registerSessionCaches();
 324
 325 #ifndef SHIBSP_LITE
 326     if (isEnabled(OutOfProcess))
 327         m_artifactResolver = new ArtifactResolver();
 328 #endif
 329     srand(static_cast<unsigned int>(std::time(nullptr)));
 330
 331     log.info("%s library initialization complete", PACKAGE_STRING);
 332     return true;
 333 }
 334
 335 void SPConfig::term()
 336 {
 337     Category& log=Category::getInstance(SHIBSP_LOGCAT".Config");
 338     log.info("%s library shutting down", PACKAGE_STRING);
 339
 340     setServiceProvider(nullptr);
 341     if (m_configDoc)
 342         m_configDoc->release();
 343     m_configDoc = nullptr;
 344 #ifndef SHIBSP_LITE
 345     setArtifactResolver(nullptr);
 346 #endif
 347
 348     if (isEnabled(Handlers)) {
 349         ArtifactResolutionServiceManager.deregisterFactories();
 350         AssertionConsumerServiceManager.deregisterFactories();
 351         LogoutInitiatorManager.deregisterFactories();
 352         ManageNameIDServiceManager.deregisterFactories();
 353         SessionInitiatorManager.deregisterFactories();
 354         SingleLogoutServiceManager.deregisterFactories();
 355         HandlerManager.deregisterFactories();
 356         ProtocolProviderManager.deregisterFactories();
 357     }
 358
 359     ServiceProviderManager.deregisterFactories();
 360     Attribute::deregisterFactories();
 361
 362 #ifndef SHIBSP_LITE
 363     SecurityPolicyProviderManager.deregisterFactories();
 364     if (isEnabled(Logging)) {
 365         EventManager.deregisterFactories();
 366     }
 367     if (isEnabled(AttributeResolution)) {
 368         MatchFunctorManager.deregisterFactories();
 369         AttributeFilterManager.deregisterFactories();
 370         AttributeDecoderManager.deregisterFactories();
 371         AttributeExtractorManager.deregisterFactories();
 372         AttributeResolverManager.deregisterFactories();
 373     }
 374 #endif
 375
 376     if (isEnabled(Listener))
 377         ListenerServiceManager.deregisterFactories();
 378
 379     if (isEnabled(RequestMapping)) {
 380         AccessControlManager.deregisterFactories();
 381         RequestMapperManager.deregisterFactories();
 382     }
 383
 384     if (isEnabled(Caching))
 385         SessionCacheManager.deregisterFactories();
 386
 387 #ifndef SHIBSP_LITE
 388     SAMLConfig::getConfig().term();
 389 #else
 390     XMLToolingConfig::getConfig().term();
 391 #endif
 392     log.info("%s library shutdown complete", PACKAGE_STRING);
 393 }
 394
 395 bool SPConfig::instantiate(const char* config, bool rethrow)
 396 {
 397 #ifdef _DEBUG
 398     NDC ndc("instantiate");
 399 #endif
 400     if (!config)
 401         config = getenv("SHIBSP_CONFIG");
 402     if (!config)
 403         config = SHIBSP_CONFIG;
 404     try {
 405         xercesc::DOMDocument* dummydoc;
 406         if (*config == '"' || *config == '\'') {
 407             throw ConfigurationException("The value of SHIBSP_CONFIG started with a quote.");
 408         }
 409         else if (*config != '<') {
 410
 411             // Mock up some XML.
 412             string resolved(config);
 413             stringstream snippet;
 414             snippet
 415                 << "<Dummy path='"
 416                 << XMLToolingConfig::getConfig().getPathResolver()->resolve(resolved, PathResolver::XMLTOOLING_CFG_FILE)
 417                 << "' validate='1'/>";
 418             dummydoc = XMLToolingConfig::getConfig().getParser().parse(snippet);
 419             XercesJanitor<xercesc::DOMDocument> docjanitor(dummydoc);
 420             setServiceProvider(ServiceProviderManager.newPlugin(XML_SERVICE_PROVIDER, dummydoc->getDocumentElement()));
 421             if (m_configDoc)
 422                 m_configDoc->release();
 423             m_configDoc = docjanitor.release();
 424         }
 425         else {
 426             stringstream snippet(config);
 427             dummydoc = XMLToolingConfig::getConfig().getParser().parse(snippet);
 428             XercesJanitor<xercesc::DOMDocument> docjanitor(dummydoc);
 429             static const XMLCh _type[] = UNICODE_LITERAL_4(t,y,p,e);
 430             auto_ptr_char type(dummydoc->getDocumentElement()->getAttributeNS(nullptr,_type));
 431             if (type.get() && *type.get())
 432                 setServiceProvider(ServiceProviderManager.newPlugin(type.get(), dummydoc->getDocumentElement()));
 433             else
 434                 throw ConfigurationException("The supplied XML bootstrapping configuration did not include a type attribute.");
 435             if (m_configDoc)
 436                 m_configDoc->release();
 437             m_configDoc = docjanitor.release();
 438         }
 439
 440         getServiceProvider()->init();
 441         return true;
 442     }
 443     catch (exception& ex) {
 444         if (rethrow)
 445             throw;
 446         Category::getInstance(SHIBSP_LOGCAT".Config").fatal("caught exception while loading configuration: %s", ex.what());
 447     }
 448     return false;
 449 }
 450
 451 bool SPInternalConfig::init(const char* catalog_path, const char* inst_prefix)
 452 {
 453 #ifdef _DEBUG
 454     xmltooling::NDC ndc("init");
 455 #endif
 456
 457     Lock initLock(m_lock);
 458
 459     if (m_initCount == INT_MAX) {
 460         Category::getInstance(SHIBSP_LOGCAT".Config").crit("library initialized too many times");
 461         return false;
 462     }
 463
 464     if (m_initCount >= 1) {
 465         ++m_initCount;
 466         return true;
 467     }
 468
 469     if (!SPConfig::init(catalog_path, inst_prefix)) {
 470         return false;
 471     }
 472
 473     ++m_initCount;
 474     return true;
 475 }
 476
 477 void SPInternalConfig::term()
 478 {
 479 #ifdef _DEBUG
 480     xmltooling::NDC ndc("term");
 481 #endif
 482
 483     Lock initLock(m_lock);
 484     if (m_initCount == 0) {
 485         Category::getInstance(SHIBSP_LOGCAT".Config").crit("term without corresponding init");
 486         return;
 487     }
 488     else if (--m_initCount > 0) {
 489         return;
 490     }
 491
 492     SPConfig::term();
 493 }