xmltooling/XMLToolingConfig.cpp

   1 /*
   2  *  Copyright 2001-2010 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  * XMLToolingConfig.cpp
  19  *
  20  * Library configuration.
  21  */
  22
  23 #include "internal.h"
  24 #include "exceptions.h"
  25 #include "logging.h"
  26 #include "XMLToolingConfig.h"
  27 #include "encryption/Encryption.h"
  28 #include "encryption/Encrypter.h"
  29 #include "impl/UnknownElement.h"
  30 #include "io/HTTPResponse.h"
  31 #include "security/TrustEngine.h"
  32 #include "security/OpenSSLCryptoX509CRL.h"
  33 #include "security/CredentialResolver.h"
  34 #include "security/KeyInfoResolver.h"
  35 #include "signature/KeyInfo.h"
  36 #include "signature/Signature.h"
  37 #include "soap/SOAP.h"
  38 #include "util/NDC.h"
  39 #include "util/PathResolver.h"
  40 #include "util/ReplayCache.h"
  41 #include "util/StorageService.h"
  42 #include "util/TemplateEngine.h"
  43 #include "util/Threads.h"
  44 #include "util/URLEncoder.h"
  45 #include "validation/ValidatorSuite.h"
  46
  47 #ifdef HAVE_DLFCN_H
  48 # include <dlfcn.h>
  49 #endif
  50
  51 #include <stdexcept>
  52 #if defined(XMLTOOLING_LOG4SHIB)
  53 # include <log4shib/PropertyConfigurator.hh>
  54 # include <log4shib/OstreamAppender.hh>
  55 #elif defined(XMLTOOLING_LOG4CPP)
  56 # include <log4cpp/PropertyConfigurator.hh>
  57 # include <log4cpp/OstreamAppender.hh>
  58 #endif
  59 #include <xercesc/util/PlatformUtils.hpp>
  60 #include <xercesc/util/XMLUniDefs.hpp>
  61 #ifndef XMLTOOLING_NO_XMLSEC
  62 # include <curl/curl.h>
  63 # include <openssl/err.h>
  64 # include <openssl/evp.h>
  65 # include <xsec/framework/XSECAlgorithmMapper.hpp>
  66 # include <xsec/framework/XSECException.hpp>
  67 # include <xsec/framework/XSECProvider.hpp>
  68 # include <xsec/transformers/TXFMBase.hpp>
  69 #endif
  70
  71 using namespace soap11;
  72 using namespace xmltooling::logging;
  73 using namespace xmltooling;
  74 using namespace xercesc;
  75 using namespace std;
  76
  77 #ifdef WIN32
  78 # if (OPENSSL_VERSION_NUMBER >= 0x00908000)
  79 #  define XMLTOOLING_OPENSSL_HAVE_SHA2 1
  80 # endif
  81 #endif
  82
  83
  84 DECL_XMLTOOLING_EXCEPTION_FACTORY(XMLParserException,xmltooling);
  85 DECL_XMLTOOLING_EXCEPTION_FACTORY(XMLObjectException,xmltooling);
  86 DECL_XMLTOOLING_EXCEPTION_FACTORY(MarshallingException,xmltooling);
  87 DECL_XMLTOOLING_EXCEPTION_FACTORY(UnmarshallingException,xmltooling);
  88 DECL_XMLTOOLING_EXCEPTION_FACTORY(UnknownElementException,xmltooling);
  89 DECL_XMLTOOLING_EXCEPTION_FACTORY(UnknownAttributeException,xmltooling);
  90 DECL_XMLTOOLING_EXCEPTION_FACTORY(UnknownExtensionException,xmltooling);
  91 DECL_XMLTOOLING_EXCEPTION_FACTORY(ValidationException,xmltooling);
  92 DECL_XMLTOOLING_EXCEPTION_FACTORY(IOException,xmltooling);
  93
  94 #ifndef XMLTOOLING_NO_XMLSEC
  95 using namespace xmlencryption;
  96 using namespace xmlsignature;
  97     DECL_XMLTOOLING_EXCEPTION_FACTORY(XMLSecurityException,xmltooling);
  98     DECL_XMLTOOLING_EXCEPTION_FACTORY(SignatureException,xmlsignature);
  99     DECL_XMLTOOLING_EXCEPTION_FACTORY(EncryptionException,xmlencryption);
 100 #endif
 101
 102 namespace {
 103     static XMLToolingInternalConfig g_config;
 104 #ifndef XMLTOOLING_NO_XMLSEC
 105     static vector<Mutex*> g_openssl_locks;
 106
 107     extern "C" void openssl_locking_callback(int mode,int n,const char *file,int line)
 108     {
 109         if (mode & CRYPTO_LOCK)
 110             g_openssl_locks[n]->lock();
 111         else
 112             g_openssl_locks[n]->unlock();
 113     }
 114
 115 # ifndef WIN32
 116     extern "C" unsigned long openssl_thread_id(void)
 117     {
 118         return (unsigned long)(pthread_self());
 119     }
 120 # endif
 121
 122 # ifdef XMLTOOLING_XMLSEC_DEBUGLOGGING
 123     class TXFMOutputLog : public TXFMBase {
 124             TXFMOutputLog();
 125     public:
 126         TXFMOutputLog(DOMDocument* doc) : TXFMBase(doc), m_log(Category::getInstance(XMLTOOLING_LOGCAT".Signature.Debugger")) {
 127             input = nullptr;
 128         }
 129         ~TXFMOutputLog() {
 130             m_log.debug("\n----- END SIGNATURE DEBUG -----\n");
 131         }
 132
 133             void setInput(TXFMBase *newInput) {
 134                 input = newInput;
 135                 if (newInput->getOutputType() != TXFMBase::BYTE_STREAM)
 136                         throw XSECException(XSECException::TransformInputOutputFail, "OutputLog transform requires BYTE_STREAM input");
 137                 keepComments = input->getCommentsStatus();
 138             m_log.debug("\n----- BEGIN SIGNATURE DEBUG -----\n");
 139         }
 140
 141             TXFMBase::ioType getInputType() {
 142             return TXFMBase::BYTE_STREAM;
 143         }
 144             TXFMBase::ioType getOutputType() {
 145             return TXFMBase::BYTE_STREAM;
 146         }
 147             TXFMBase::nodeType getNodeType() {
 148             return TXFMBase::DOM_NODE_NONE;
 149         }
 150
 151             unsigned int readBytes(XMLByte * const toFill, const unsigned int maxToFill) {
 152                 unsigned int sz = input->readBytes(toFill, maxToFill);
 153             m_log.debug(string(reinterpret_cast<char* const>(toFill), sz));
 154                 return sz;
 155         }
 156
 157             DOMDocument* getDocument() {
 158             return nullptr;
 159         }
 160             DOMNode* getFragmentNode() {
 161             return nullptr;
 162         }
 163             const XMLCh* getFragmentId() {
 164             return nullptr;
 165         }
 166
 167     private:
 168         Category& m_log;
 169     };
 170
 171     TXFMBase* TXFMOutputLogFactory(DOMDocument* doc) {
 172         if (Category::getInstance(XMLTOOLING_LOGCAT".Signature.Debugger").isDebugEnabled())
 173             return new TXFMOutputLog(doc);
 174         return nullptr;
 175     }
 176 # endif
 177
 178 #endif
 179
 180 #ifdef WIN32
 181     BOOL LogEvent(
 182         LPCSTR  lpUNCServerName,
 183         WORD  wType,
 184         DWORD  dwEventID,
 185         PSID  lpUserSid,
 186         LPCSTR  message)
 187     {
 188         LPCSTR  messages[] = {message, nullptr};
 189
 190         HANDLE hElog = RegisterEventSource(lpUNCServerName, "OpenSAML XMLTooling Library");
 191         BOOL res = ReportEvent(hElog, wType, 0, dwEventID, lpUserSid, 1, 0, messages, nullptr);
 192         return (DeregisterEventSource(hElog) && res);
 193     }
 194 #endif
 195 }
 196
 197 XMLToolingConfig& XMLToolingConfig::getConfig()
 198 {
 199     return g_config;
 200 }
 201
 202 XMLToolingInternalConfig& XMLToolingInternalConfig::getInternalConfig()
 203 {
 204     return g_config;
 205 }
 206
 207 #ifndef XMLTOOLING_NO_XMLSEC
 208 XMLToolingConfig::XMLToolingConfig()
 209     : m_keyInfoResolver(nullptr), m_replayCache(nullptr), m_pathResolver(nullptr), m_templateEngine(nullptr), m_urlEncoder(nullptr), clock_skew_secs(180)
 210 #else
 211 XMLToolingConfig::XMLToolingConfig()
 212     : m_pathResolver(nullptr), m_templateEngine(nullptr), m_urlEncoder(nullptr), clock_skew_secs(180)
 213 #endif
 214 {
 215 }
 216
 217 XMLToolingConfig::~XMLToolingConfig()
 218 {
 219 }
 220
 221 bool XMLToolingInternalConfig::log_config(const char* config)
 222 {
 223     try {
 224         if (!config || !*config)
 225             config=getenv("XMLTOOLING_LOG_CONFIG");
 226         if (!config || !*config)
 227             config="WARN";
 228
 229         bool level=false;
 230         Category& root = Category::getRoot();
 231         if (!strcmp(config,"DEBUG")) {
 232             root.setPriority(Priority::DEBUG);
 233             level=true;
 234         }
 235         else if (!strcmp(config,"INFO")) {
 236             root.setPriority(Priority::INFO);
 237             level=true;
 238         }
 239         else if (!strcmp(config,"NOTICE")) {
 240             root.setPriority(Priority::NOTICE);
 241             level=true;
 242         }
 243         else if (!strcmp(config,"WARN")) {
 244             root.setPriority(Priority::WARN);
 245             level=true;
 246         }
 247         else if (!strcmp(config,"ERROR")) {
 248             root.setPriority(Priority::ERROR);
 249             level=true;
 250         }
 251         else if (!strcmp(config,"CRIT")) {
 252             root.setPriority(Priority::CRIT);
 253             level=true;
 254         }
 255         else if (!strcmp(config,"ALERT")) {
 256             root.setPriority(Priority::ALERT);
 257             level=true;
 258         }
 259         else if (!strcmp(config,"EMERG")) {
 260             root.setPriority(Priority::EMERG);
 261             level=true;
 262         }
 263         else if (!strcmp(config,"FATAL")) {
 264             root.setPriority(Priority::FATAL);
 265             level=true;
 266         }
 267         if (level) {
 268             root.setAppender(new OstreamAppender("default",&cerr));
 269         }
 270         else {
 271             string path(config);
 272             PropertyConfigurator::configure(m_pathResolver ? m_pathResolver->resolve(path, PathResolver::XMLTOOLING_CFG_FILE) : path);
 273         }
 274
 275 #ifndef XMLTOOLING_NO_XMLSEC
 276         Category::getInstance(XMLTOOLING_LOGCAT".Signature.Debugger").setAdditivity(false);
 277 #endif
 278         }
 279     catch (const ConfigureFailure& e) {
 280         string msg = string("failed to configure logging: ") + e.what();
 281         Category::getInstance(XMLTOOLING_LOGCAT".Logging").crit(msg);
 282 #ifdef WIN32
 283         LogEvent(nullptr, EVENTLOG_ERROR_TYPE, 2100, nullptr, msg.c_str());
 284 #endif
 285         return false;
 286     }
 287
 288     return true;
 289 }
 290
 291 #ifndef XMLTOOLING_LITE
 292 const KeyInfoResolver* XMLToolingConfig::getKeyInfoResolver() const
 293 {
 294     return m_keyInfoResolver;
 295 }
 296
 297 ReplayCache* XMLToolingConfig::getReplayCache() const
 298 {
 299     return m_replayCache;
 300 }
 301
 302 void XMLToolingConfig::setKeyInfoResolver(xmltooling::KeyInfoResolver *keyInfoResolver)
 303 {
 304     delete m_keyInfoResolver;
 305     m_keyInfoResolver = keyInfoResolver;
 306 }
 307
 308 void XMLToolingConfig::setReplayCache(ReplayCache* replayCache)
 309 {
 310     delete m_replayCache;
 311     m_replayCache = replayCache;
 312 }
 313 #endif
 314
 315 PathResolver* XMLToolingConfig::getPathResolver() const
 316 {
 317     return m_pathResolver;
 318 }
 319
 320 TemplateEngine* XMLToolingConfig::getTemplateEngine() const
 321 {
 322     return m_templateEngine;
 323 }
 324
 325 const URLEncoder* XMLToolingConfig::getURLEncoder() const
 326 {
 327     return m_urlEncoder;
 328 }
 329
 330 void XMLToolingConfig::setPathResolver(PathResolver* pathResolver)
 331 {
 332     delete m_pathResolver;
 333     m_pathResolver = pathResolver;
 334 }
 335
 336 void XMLToolingConfig::setTemplateEngine(TemplateEngine* templateEngine)
 337 {
 338     delete m_templateEngine;
 339     m_templateEngine = templateEngine;
 340 }
 341
 342 void XMLToolingConfig::setURLEncoder(URLEncoder* urlEncoder)
 343 {
 344     delete m_urlEncoder;
 345     m_urlEncoder = urlEncoder;
 346 }
 347
 348 bool XMLToolingInternalConfig::init()
 349 {
 350 #ifdef _DEBUG
 351     xmltooling::NDC ndc("init");
 352 #endif
 353     Category& log=Category::getInstance(XMLTOOLING_LOGCAT".XMLToolingConfig");
 354     try {
 355         log.debug("library initialization started");
 356
 357 #ifndef XMLTOOLING_NO_XMLSEC
 358         if (curl_global_init(CURL_GLOBAL_ALL)) {
 359             log.fatal("failed to initialize libcurl, OpenSSL, or Winsock");
 360             return false;
 361         }
 362         curl_version_info_data* curlver = curl_version_info(CURLVERSION_NOW);
 363         if (curlver) {
 364             log.debug("libcurl %s initialization complete", curlver->version);
 365             if (!(curlver->features & CURL_VERSION_SSL)) {
 366                 log.warn("libcurl lacks TLS/SSL support, this will greatly limit functionality");
 367             }
 368         }
 369         else {
 370             log.debug("libcurl %s initialization complete", LIBCURL_VERSION);
 371         }
 372 #endif
 373
 374         XMLPlatformUtils::Initialize();
 375         log.debug("Xerces %s initialization complete", XERCES_FULLVERSIONDOT);
 376
 377 #ifndef XMLTOOLING_NO_XMLSEC
 378         XSECPlatformUtils::Initialise();
 379 # ifdef XMLTOOLING_XMLSEC_DEBUGLOGGING
 380         XSECPlatformUtils::SetReferenceLoggingSink(TXFMOutputLogFactory);
 381 # endif
 382         m_xsecProvider=new XSECProvider();
 383         log.debug("XML-Security %s initialization complete", XSEC_FULLVERSIONDOT);
 384 #endif
 385
 386         m_parserPool=new ParserPool();
 387         m_validatingPool=new ParserPool(true,true);
 388         m_lock=XMLPlatformUtils::makeMutex();
 389
 390         // Load catalogs from path.
 391         if (!catalog_path.empty()) {
 392             char* catpath=strdup(catalog_path.c_str());
 393             char* sep=nullptr;
 394             char* start=catpath;
 395             while (start && *start) {
 396                 sep=strchr(start,PATH_SEPARATOR_CHAR);
 397                 if (sep)
 398                     *sep=0;
 399                 auto_ptr_XMLCh temp(start);
 400                 m_validatingPool->loadCatalog(temp.get());
 401                 start = sep ? sep + 1 : nullptr;
 402             }
 403             free(catpath);
 404         }
 405
 406         // default registrations
 407         XMLObjectBuilder::registerDefaultBuilder(new UnknownElementBuilder());
 408
 409         registerSOAPClasses();
 410
 411         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(XMLParserException,xmltooling);
 412         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(XMLObjectException,xmltooling);
 413         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(MarshallingException,xmltooling);
 414         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(UnmarshallingException,xmltooling);
 415         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(UnknownElementException,xmltooling);
 416         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(UnknownAttributeException,xmltooling);
 417         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(ValidationException,xmltooling);
 418         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(IOException,xmltooling);
 419
 420 #ifndef XMLTOOLING_NO_XMLSEC
 421         XMLObjectBuilder::registerBuilder(QName(xmlconstants::XMLSIG_NS,Signature::LOCAL_NAME),new SignatureBuilder());
 422         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(XMLSecurityException,xmltooling);
 423         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(SignatureException,xmlsignature);
 424         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(EncryptionException,xmlencryption);
 425         registerKeyInfoClasses();
 426         registerEncryptionClasses();
 427         registerKeyInfoResolvers();
 428         registerCredentialResolvers();
 429         registerTrustEngines();
 430         registerXMLAlgorithms();
 431         registerSOAPTransports();
 432         initSOAPTransports();
 433         registerStorageServices();
 434         m_keyInfoResolver = KeyInfoResolverManager.newPlugin(INLINE_KEYINFO_RESOLVER,nullptr);
 435 #endif
 436
 437         m_pathResolver = new PathResolver();
 438         m_urlEncoder = new URLEncoder();
 439
 440         HTTPResponse::getAllowedSchemes().push_back("https");
 441         HTTPResponse::getAllowedSchemes().push_back("http");
 442
 443         // Register xml:id as an ID attribute.
 444         static const XMLCh xmlid[] = UNICODE_LITERAL_2(i,d);
 445         AttributeExtensibleXMLObject::registerIDAttribute(QName(xmlconstants::XML_NS, xmlid));
 446     }
 447     catch (const xercesc::XMLException&) {
 448         log.fatal("caught exception while initializing Xerces");
 449 #ifndef XMLTOOLING_NO_XMLSEC
 450         curl_global_cleanup();
 451 #endif
 452         return false;
 453     }
 454
 455 #ifndef XMLTOOLING_NO_XMLSEC
 456     // Set up OpenSSL locking.
 457     for (int i=0; i<CRYPTO_num_locks(); i++)
 458         g_openssl_locks.push_back(Mutex::create());
 459     CRYPTO_set_locking_callback(openssl_locking_callback);
 460 # ifndef WIN32
 461     CRYPTO_set_id_callback(openssl_thread_id);
 462 # endif
 463 #endif
 464
 465     log.info("%s library initialization complete", PACKAGE_STRING);
 466     return true;
 467 }
 468
 469 void XMLToolingInternalConfig::term()
 470 {
 471 #ifndef XMLTOOLING_NO_XMLSEC
 472     CRYPTO_set_locking_callback(nullptr);
 473     for_each(g_openssl_locks.begin(), g_openssl_locks.end(), xmltooling::cleanup<Mutex>());
 474     g_openssl_locks.clear();
 475 #endif
 476
 477     SchemaValidators.destroyValidators();
 478     XMLObjectBuilder::destroyBuilders();
 479     XMLToolingException::deregisterFactories();
 480     AttributeExtensibleXMLObject::deregisterIDAttributes();
 481
 482 #ifndef XMLTOOLING_NO_XMLSEC
 483     StorageServiceManager.deregisterFactories();
 484     termSOAPTransports();
 485     SOAPTransportManager.deregisterFactories();
 486     TrustEngineManager.deregisterFactories();
 487     CredentialResolverManager.deregisterFactories();
 488     KeyInfoResolverManager.deregisterFactories();
 489     m_algorithmMap.clear();
 490
 491     delete m_keyInfoResolver;
 492     m_keyInfoResolver = nullptr;
 493
 494     delete m_replayCache;
 495     m_replayCache = nullptr;
 496 #endif
 497
 498     delete m_pathResolver;
 499     m_pathResolver = nullptr;
 500
 501     delete m_templateEngine;
 502     m_templateEngine = nullptr;
 503
 504     delete m_urlEncoder;
 505     m_urlEncoder = nullptr;
 506
 507     for (vector<void*>::reverse_iterator i=m_libhandles.rbegin(); i!=m_libhandles.rend(); i++) {
 508 #if defined(WIN32)
 509         FARPROC fn=GetProcAddress(static_cast<HMODULE>(*i),"xmltooling_extension_term");
 510         if (fn)
 511             fn();
 512         FreeLibrary(static_cast<HMODULE>(*i));
 513 #elif defined(HAVE_DLFCN_H)
 514         void (*fn)()=(void (*)())dlsym(*i,"xmltooling_extension_term");
 515         if (fn)
 516             fn();
 517         dlclose(*i);
 518 #else
 519 # error "Don't know about dynamic loading on this platform!"
 520 #endif
 521     }
 522     m_libhandles.clear();
 523
 524     delete m_parserPool;
 525     m_parserPool=nullptr;
 526     delete m_validatingPool;
 527     m_validatingPool=nullptr;
 528
 529 #ifndef XMLTOOLING_NO_XMLSEC
 530     delete m_xsecProvider;
 531     m_xsecProvider=nullptr;
 532     XSECPlatformUtils::Terminate();
 533 #endif
 534
 535     XMLPlatformUtils::closeMutex(m_lock);
 536     m_lock=nullptr;
 537     XMLPlatformUtils::Terminate();
 538
 539 #ifndef XMLTOOLING_NO_XMLSEC
 540     curl_global_cleanup();
 541 #endif
 542 #ifdef _DEBUG
 543     xmltooling::NDC ndc("term");
 544 #endif
 545    Category::getInstance(XMLTOOLING_LOGCAT".XMLToolingConfig").info("%s library shutdown complete", PACKAGE_STRING);
 546 }
 547
 548 Lockable* XMLToolingInternalConfig::lock()
 549 {
 550     xercesc::XMLPlatformUtils::lockMutex(m_lock);
 551     return this;
 552 }
 553
 554 void XMLToolingInternalConfig::unlock()
 555 {
 556     xercesc::XMLPlatformUtils::unlockMutex(m_lock);
 557 }
 558
 559 bool XMLToolingInternalConfig::load_library(const char* path, void* context)
 560 {
 561 #ifdef _DEBUG
 562     xmltooling::NDC ndc("LoadLibrary");
 563 #endif
 564     Category& log=Category::getInstance(XMLTOOLING_LOGCAT".XMLToolingConfig");
 565     log.info("loading extension: %s", path);
 566
 567     Locker locker(this);
 568
 569     string resolved(path);
 570     m_pathResolver->resolve(resolved, PathResolver::XMLTOOLING_LIB_FILE);
 571
 572 #if defined(WIN32)
 573     HMODULE handle=nullptr;
 574     for (string::iterator i = resolved.begin(); i != resolved.end(); ++i)
 575         if (*i == '/')
 576             *i = '\\';
 577
 578     UINT em=SetErrorMode(SEM_FAILCRITICALERRORS);
 579     try {
 580         handle=LoadLibraryEx(resolved.c_str(),nullptr,LOAD_WITH_ALTERED_SEARCH_PATH);
 581         if (!handle)
 582              handle=LoadLibraryEx(resolved.c_str(),nullptr,0);
 583         if (!handle)
 584             throw runtime_error(string("unable to load extension library: ") + resolved);
 585         FARPROC fn=GetProcAddress(handle,"xmltooling_extension_init");
 586         if (!fn)
 587             throw runtime_error(string("unable to locate xmltooling_extension_init entry point: ") + resolved);
 588         if (reinterpret_cast<int(*)(void*)>(fn)(context)!=0)
 589             throw runtime_error(string("detected error in xmltooling_extension_init: ") + resolved);
 590         SetErrorMode(em);
 591     }
 592     catch(exception&) {
 593         if (handle)
 594             FreeLibrary(handle);
 595         SetErrorMode(em);
 596         throw;
 597     }
 598
 599 #elif defined(HAVE_DLFCN_H)
 600     void* handle=dlopen(resolved.c_str(),RTLD_LAZY);
 601     if (!handle)
 602         throw runtime_error(string("unable to load extension library '") + resolved + "': " + dlerror());
 603     int (*fn)(void*)=(int (*)(void*))(dlsym(handle,"xmltooling_extension_init"));
 604     if (!fn) {
 605         dlclose(handle);
 606         throw runtime_error(
 607             string("unable to locate xmltooling_extension_init entry point in '") + resolved + "': " +
 608                 (dlerror() ? dlerror() : "unknown error")
 609             );
 610     }
 611     try {
 612         if (fn(context)!=0)
 613             throw runtime_error(string("detected error in xmltooling_extension_init in ") + resolved);
 614     }
 615     catch(exception&) {
 616         if (handle)
 617             dlclose(handle);
 618         throw;
 619     }
 620 #else
 621 # error "Don't know about dynamic loading on this platform!"
 622 #endif
 623     m_libhandles.push_back(handle);
 624     log.info("loaded extension: %s", resolved.c_str());
 625     return true;
 626 }
 627
 628 #ifndef XMLTOOLING_NO_XMLSEC
 629
 630 void xmltooling::log_openssl()
 631 {
 632     const char* file;
 633     const char* data;
 634     int flags,line;
 635
 636     unsigned long code=ERR_get_error_line_data(&file,&line,&data,&flags);
 637     while (code) {
 638         Category& log=Category::getInstance("OpenSSL");
 639         log.errorStream() << "error code: " << code << " in " << file << ", line " << line << logging::eol;
 640         if (data && (flags & ERR_TXT_STRING))
 641             log.errorStream() << "error data: " << data << logging::eol;
 642         code=ERR_get_error_line_data(&file,&line,&data,&flags);
 643     }
 644 }
 645
 646 XSECCryptoX509CRL* XMLToolingInternalConfig::X509CRL() const
 647 {
 648     return new OpenSSLCryptoX509CRL();
 649 }
 650
 651 pair<const char*,unsigned int> XMLToolingInternalConfig::mapXMLAlgorithmToKeyAlgorithm(const XMLCh* xmlAlgorithm) const
 652 {
 653     for (algmap_t::const_iterator i = m_algorithmMap.begin(); i != m_algorithmMap.end(); ++i) {
 654         algmap_t::value_type::second_type::const_iterator j = i->second.find(xmlAlgorithm);
 655         if (j != i->second.end())
 656             return pair<const char*,unsigned int>(j->second.first.c_str(), j->second.second);
 657     }
 658     return pair<const char*,unsigned int>(nullptr, 0);
 659 }
 660
 661 void XMLToolingInternalConfig::registerXMLAlgorithm(
 662     const XMLCh* xmlAlgorithm, const char* keyAlgorithm, unsigned int size, XMLSecurityAlgorithmType type
 663     )
 664 {
 665     m_algorithmMap[type][xmlAlgorithm] = pair<string,unsigned int>((keyAlgorithm ? keyAlgorithm : ""), size);
 666 }
 667
 668 bool XMLToolingInternalConfig::isXMLAlgorithmSupported(const XMLCh* xmlAlgorithm, XMLSecurityAlgorithmType type)
 669 {
 670     try {
 671         // First check for basic support from the xmlsec layer.
 672         if (XSECPlatformUtils::g_algorithmMapper->mapURIToHandler(xmlAlgorithm)) {
 673             // Make sure the algorithm is registered.
 674             algmap_t::const_iterator i = m_algorithmMap.find(type);
 675             if (i != m_algorithmMap.end()) {
 676                 algmap_t::value_type::second_type::const_iterator j = i->second.find(xmlAlgorithm);
 677                 if (j != i->second.end())
 678                     return true;
 679             }
 680         }
 681     }
 682     catch (XSECException&) {
 683     }
 684     return false;
 685 }
 686
 687 void XMLToolingInternalConfig::registerXMLAlgorithms()
 688 {
 689     // The deal with all the macros is to try and figure out with no false positives whether
 690     // the OpenSSL version *and* the XML-Security version support the algorithms.
 691
 692     // With ECDSA, XML-Security exports a public macro for OpenSSL's support, and any
 693     // versions of XML-Security that didn't provide the macro don't handle ECDSA anyway.
 694
 695     // With AES, all supported XML-Security versions export a macro for OpenSSL's support.
 696
 697     // With SHA2, only the very latest XML-Security exports a macro, but all the versions
 698     // will handle SHA2 *if* OpenSSL does. So we use our own macro to check OpenSSL's
 699     // support, and then add checks to see if specific versions are compiled out.
 700
 701     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIMD5, nullptr, 0, ALGTYPE_DIGEST);
 702     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURISHA1, nullptr, 0, ALGTYPE_DIGEST);
 703 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA256)
 704     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURISHA224, nullptr, 0, ALGTYPE_DIGEST);
 705     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURISHA256, nullptr, 0, ALGTYPE_DIGEST);
 706 #endif
 707 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA512)
 708     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURISHA384, nullptr, 0, ALGTYPE_DIGEST);
 709     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURISHA512, nullptr, 0, ALGTYPE_DIGEST);
 710 #endif
 711
 712     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIDSA_SHA1, "DSA", 0, ALGTYPE_SIGN);
 713     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_MD5, "RSA", 0, ALGTYPE_SIGN);
 714     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_SHA1, "RSA", 0, ALGTYPE_SIGN);
 715 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA256)
 716     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_SHA224, "RSA", 0, ALGTYPE_SIGN);
 717     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_SHA256, "RSA", 0, ALGTYPE_SIGN);
 718 #endif
 719 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA512)
 720     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_SHA384, "RSA", 0, ALGTYPE_SIGN);
 721     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_SHA512, "RSA", 0, ALGTYPE_SIGN);
 722 #endif
 723
 724 #ifdef XSEC_OPENSSL_HAVE_EC
 725     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIECDSA_SHA1, "EC", 0, ALGTYPE_SIGN);
 726 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA256)
 727     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIECDSA_SHA256, "EC", 0, ALGTYPE_SIGN);
 728 # endif
 729 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA512)
 730     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIECDSA_SHA384, "EC", 0, ALGTYPE_SIGN);
 731     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIECDSA_SHA512, "EC", 0, ALGTYPE_SIGN);
 732 # endif
 733 #endif
 734
 735     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIHMAC_SHA1, "HMAC", 0, ALGTYPE_SIGN);
 736 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA256)
 737     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIHMAC_SHA224, "HMAC", 0, ALGTYPE_SIGN);
 738     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIHMAC_SHA256, "HMAC", 0, ALGTYPE_SIGN);
 739 #endif
 740 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA512)
 741     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIHMAC_SHA384, "HMAC", 0, ALGTYPE_SIGN);
 742     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIHMAC_SHA512, "HMAC", 0, ALGTYPE_SIGN);
 743 #endif
 744
 745     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_1_5, "RSA", 0, ALGTYPE_KEYENCRYPT);
 746     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_OAEP_MGFP1, "RSA", 0, ALGTYPE_KEYENCRYPT);
 747
 748     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURI3DES_CBC, "DESede", 192, ALGTYPE_ENCRYPT);
 749     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIKW_3DES, "DESede", 192, ALGTYPE_KEYENCRYPT);
 750
 751 #ifdef XSEC_OPENSSL_HAVE_AES
 752     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIAES128_CBC, "AES", 128, ALGTYPE_ENCRYPT);
 753     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIKW_AES128, "AES", 128, ALGTYPE_KEYENCRYPT);
 754
 755     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIAES192_CBC, "AES", 192, ALGTYPE_ENCRYPT);
 756     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIKW_AES192, "AES", 192, ALGTYPE_KEYENCRYPT);
 757
 758     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIAES256_CBC, "AES", 256, ALGTYPE_ENCRYPT);
 759     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIKW_AES256, "AES", 256, ALGTYPE_KEYENCRYPT);
 760 #endif
 761 }
 762
 763 #endif
 764
 765 #ifdef WIN32
 766
 767 extern "C" __declspec(dllexport) BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID)
 768 {
 769     if (fdwReason == DLL_THREAD_DETACH || fdwReason == DLL_PROCESS_DETACH)
 770         ThreadKey::onDetach();
 771     return TRUE;
 772 }
 773
 774 #endif