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         log.debug("libcurl %s initialization complete", LIBCURL_VERSION);
 363 #endif
 364
 365         XMLPlatformUtils::Initialize();
 366         log.debug("Xerces %s initialization complete", XERCES_FULLVERSIONDOT);
 367
 368 #ifndef XMLTOOLING_NO_XMLSEC
 369         XSECPlatformUtils::Initialise();
 370 # ifdef XMLTOOLING_XMLSEC_DEBUGLOGGING
 371         XSECPlatformUtils::SetReferenceLoggingSink(TXFMOutputLogFactory);
 372 # endif
 373         m_xsecProvider=new XSECProvider();
 374         log.debug("XML-Security %s initialization complete", XSEC_FULLVERSIONDOT);
 375 #endif
 376
 377         m_parserPool=new ParserPool();
 378         m_validatingPool=new ParserPool(true,true);
 379         m_lock=XMLPlatformUtils::makeMutex();
 380
 381         // Load catalogs from path.
 382         if (!catalog_path.empty()) {
 383             char* catpath=strdup(catalog_path.c_str());
 384             char* sep=nullptr;
 385             char* start=catpath;
 386             while (start && *start) {
 387                 sep=strchr(start,PATH_SEPARATOR_CHAR);
 388                 if (sep)
 389                     *sep=0;
 390                 auto_ptr_XMLCh temp(start);
 391                 m_validatingPool->loadCatalog(temp.get());
 392                 start = sep ? sep + 1 : nullptr;
 393             }
 394             free(catpath);
 395         }
 396
 397         // default registrations
 398         XMLObjectBuilder::registerDefaultBuilder(new UnknownElementBuilder());
 399
 400         registerSOAPClasses();
 401
 402         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(XMLParserException,xmltooling);
 403         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(XMLObjectException,xmltooling);
 404         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(MarshallingException,xmltooling);
 405         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(UnmarshallingException,xmltooling);
 406         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(UnknownElementException,xmltooling);
 407         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(UnknownAttributeException,xmltooling);
 408         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(ValidationException,xmltooling);
 409         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(IOException,xmltooling);
 410
 411 #ifndef XMLTOOLING_NO_XMLSEC
 412         XMLObjectBuilder::registerBuilder(QName(xmlconstants::XMLSIG_NS,Signature::LOCAL_NAME),new SignatureBuilder());
 413         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(XMLSecurityException,xmltooling);
 414         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(SignatureException,xmlsignature);
 415         REGISTER_XMLTOOLING_EXCEPTION_FACTORY(EncryptionException,xmlencryption);
 416         registerKeyInfoClasses();
 417         registerEncryptionClasses();
 418         registerKeyInfoResolvers();
 419         registerCredentialResolvers();
 420         registerTrustEngines();
 421         registerXMLAlgorithms();
 422         registerSOAPTransports();
 423         initSOAPTransports();
 424         registerStorageServices();
 425         m_keyInfoResolver = KeyInfoResolverManager.newPlugin(INLINE_KEYINFO_RESOLVER,nullptr);
 426 #endif
 427
 428         m_pathResolver = new PathResolver();
 429         m_urlEncoder = new URLEncoder();
 430
 431         HTTPResponse::getAllowedSchemes().push_back("https");
 432         HTTPResponse::getAllowedSchemes().push_back("http");
 433
 434         // Register xml:id as an ID attribute.
 435         static const XMLCh xmlid[] = UNICODE_LITERAL_2(i,d);
 436         AttributeExtensibleXMLObject::registerIDAttribute(QName(xmlconstants::XML_NS, xmlid));
 437     }
 438     catch (const xercesc::XMLException&) {
 439         log.fatal("caught exception while initializing Xerces");
 440 #ifndef XMLTOOLING_NO_XMLSEC
 441         curl_global_cleanup();
 442 #endif
 443         return false;
 444     }
 445
 446 #ifndef XMLTOOLING_NO_XMLSEC
 447     // Set up OpenSSL locking.
 448     for (int i=0; i<CRYPTO_num_locks(); i++)
 449         g_openssl_locks.push_back(Mutex::create());
 450     CRYPTO_set_locking_callback(openssl_locking_callback);
 451 # ifndef WIN32
 452     CRYPTO_set_id_callback(openssl_thread_id);
 453 # endif
 454 #endif
 455
 456     log.info("%s library initialization complete", PACKAGE_STRING);
 457     return true;
 458 }
 459
 460 void XMLToolingInternalConfig::term()
 461 {
 462 #ifndef XMLTOOLING_NO_XMLSEC
 463     CRYPTO_set_locking_callback(nullptr);
 464     for_each(g_openssl_locks.begin(), g_openssl_locks.end(), xmltooling::cleanup<Mutex>());
 465     g_openssl_locks.clear();
 466 #endif
 467
 468     SchemaValidators.destroyValidators();
 469     XMLObjectBuilder::destroyBuilders();
 470     XMLToolingException::deregisterFactories();
 471     AttributeExtensibleXMLObject::deregisterIDAttributes();
 472
 473 #ifndef XMLTOOLING_NO_XMLSEC
 474     StorageServiceManager.deregisterFactories();
 475     termSOAPTransports();
 476     SOAPTransportManager.deregisterFactories();
 477     TrustEngineManager.deregisterFactories();
 478     CredentialResolverManager.deregisterFactories();
 479     KeyInfoResolverManager.deregisterFactories();
 480     m_algorithmMap.clear();
 481
 482     delete m_keyInfoResolver;
 483     m_keyInfoResolver = nullptr;
 484
 485     delete m_replayCache;
 486     m_replayCache = nullptr;
 487 #endif
 488
 489     delete m_pathResolver;
 490     m_pathResolver = nullptr;
 491
 492     delete m_templateEngine;
 493     m_templateEngine = nullptr;
 494
 495     delete m_urlEncoder;
 496     m_urlEncoder = nullptr;
 497
 498     for (vector<void*>::reverse_iterator i=m_libhandles.rbegin(); i!=m_libhandles.rend(); i++) {
 499 #if defined(WIN32)
 500         FARPROC fn=GetProcAddress(static_cast<HMODULE>(*i),"xmltooling_extension_term");
 501         if (fn)
 502             fn();
 503         FreeLibrary(static_cast<HMODULE>(*i));
 504 #elif defined(HAVE_DLFCN_H)
 505         void (*fn)()=(void (*)())dlsym(*i,"xmltooling_extension_term");
 506         if (fn)
 507             fn();
 508         dlclose(*i);
 509 #else
 510 # error "Don't know about dynamic loading on this platform!"
 511 #endif
 512     }
 513     m_libhandles.clear();
 514
 515     delete m_parserPool;
 516     m_parserPool=nullptr;
 517     delete m_validatingPool;
 518     m_validatingPool=nullptr;
 519
 520 #ifndef XMLTOOLING_NO_XMLSEC
 521     delete m_xsecProvider;
 522     m_xsecProvider=nullptr;
 523     XSECPlatformUtils::Terminate();
 524 #endif
 525
 526     XMLPlatformUtils::closeMutex(m_lock);
 527     m_lock=nullptr;
 528     XMLPlatformUtils::Terminate();
 529
 530 #ifndef XMLTOOLING_NO_XMLSEC
 531     curl_global_cleanup();
 532 #endif
 533 #ifdef _DEBUG
 534     xmltooling::NDC ndc("term");
 535 #endif
 536    Category::getInstance(XMLTOOLING_LOGCAT".XMLToolingConfig").info("%s library shutdown complete", PACKAGE_STRING);
 537 }
 538
 539 Lockable* XMLToolingInternalConfig::lock()
 540 {
 541     xercesc::XMLPlatformUtils::lockMutex(m_lock);
 542     return this;
 543 }
 544
 545 void XMLToolingInternalConfig::unlock()
 546 {
 547     xercesc::XMLPlatformUtils::unlockMutex(m_lock);
 548 }
 549
 550 bool XMLToolingInternalConfig::load_library(const char* path, void* context)
 551 {
 552 #ifdef _DEBUG
 553     xmltooling::NDC ndc("LoadLibrary");
 554 #endif
 555     Category& log=Category::getInstance(XMLTOOLING_LOGCAT".XMLToolingConfig");
 556     log.info("loading extension: %s", path);
 557
 558     Locker locker(this);
 559
 560     string resolved(path);
 561     m_pathResolver->resolve(resolved, PathResolver::XMLTOOLING_LIB_FILE);
 562
 563 #if defined(WIN32)
 564     HMODULE handle=nullptr;
 565     for (string::iterator i = resolved.begin(); i != resolved.end(); ++i)
 566         if (*i == '/')
 567             *i = '\\';
 568
 569     UINT em=SetErrorMode(SEM_FAILCRITICALERRORS);
 570     try {
 571         handle=LoadLibraryEx(resolved.c_str(),nullptr,LOAD_WITH_ALTERED_SEARCH_PATH);
 572         if (!handle)
 573              handle=LoadLibraryEx(resolved.c_str(),nullptr,0);
 574         if (!handle)
 575             throw runtime_error(string("unable to load extension library: ") + resolved);
 576         FARPROC fn=GetProcAddress(handle,"xmltooling_extension_init");
 577         if (!fn)
 578             throw runtime_error(string("unable to locate xmltooling_extension_init entry point: ") + resolved);
 579         if (reinterpret_cast<int(*)(void*)>(fn)(context)!=0)
 580             throw runtime_error(string("detected error in xmltooling_extension_init: ") + resolved);
 581         SetErrorMode(em);
 582     }
 583     catch(exception&) {
 584         if (handle)
 585             FreeLibrary(handle);
 586         SetErrorMode(em);
 587         throw;
 588     }
 589
 590 #elif defined(HAVE_DLFCN_H)
 591     void* handle=dlopen(resolved.c_str(),RTLD_LAZY);
 592     if (!handle)
 593         throw runtime_error(string("unable to load extension library '") + resolved + "': " + dlerror());
 594     int (*fn)(void*)=(int (*)(void*))(dlsym(handle,"xmltooling_extension_init"));
 595     if (!fn) {
 596         dlclose(handle);
 597         throw runtime_error(
 598             string("unable to locate xmltooling_extension_init entry point in '") + resolved + "': " +
 599                 (dlerror() ? dlerror() : "unknown error")
 600             );
 601     }
 602     try {
 603         if (fn(context)!=0)
 604             throw runtime_error(string("detected error in xmltooling_extension_init in ") + resolved);
 605     }
 606     catch(exception&) {
 607         if (handle)
 608             dlclose(handle);
 609         throw;
 610     }
 611 #else
 612 # error "Don't know about dynamic loading on this platform!"
 613 #endif
 614     m_libhandles.push_back(handle);
 615     log.info("loaded extension: %s", resolved.c_str());
 616     return true;
 617 }
 618
 619 #ifndef XMLTOOLING_NO_XMLSEC
 620
 621 void xmltooling::log_openssl()
 622 {
 623     const char* file;
 624     const char* data;
 625     int flags,line;
 626
 627     unsigned long code=ERR_get_error_line_data(&file,&line,&data,&flags);
 628     while (code) {
 629         Category& log=Category::getInstance("OpenSSL");
 630         log.errorStream() << "error code: " << code << " in " << file << ", line " << line << logging::eol;
 631         if (data && (flags & ERR_TXT_STRING))
 632             log.errorStream() << "error data: " << data << logging::eol;
 633         code=ERR_get_error_line_data(&file,&line,&data,&flags);
 634     }
 635 }
 636
 637 XSECCryptoX509CRL* XMLToolingInternalConfig::X509CRL() const
 638 {
 639     return new OpenSSLCryptoX509CRL();
 640 }
 641
 642 pair<const char*,unsigned int> XMLToolingInternalConfig::mapXMLAlgorithmToKeyAlgorithm(const XMLCh* xmlAlgorithm) const
 643 {
 644     for (algmap_t::const_iterator i = m_algorithmMap.begin(); i != m_algorithmMap.end(); ++i) {
 645         algmap_t::value_type::second_type::const_iterator j = i->second.find(xmlAlgorithm);
 646         if (j != i->second.end())
 647             return pair<const char*,unsigned int>(j->second.first.c_str(), j->second.second);
 648     }
 649     return pair<const char*,unsigned int>(nullptr, 0);
 650 }
 651
 652 void XMLToolingInternalConfig::registerXMLAlgorithm(
 653     const XMLCh* xmlAlgorithm, const char* keyAlgorithm, unsigned int size, XMLSecurityAlgorithmType type
 654     )
 655 {
 656     m_algorithmMap[type][xmlAlgorithm] = pair<string,unsigned int>((keyAlgorithm ? keyAlgorithm : ""), size);
 657 }
 658
 659 bool XMLToolingInternalConfig::isXMLAlgorithmSupported(const XMLCh* xmlAlgorithm, XMLSecurityAlgorithmType type)
 660 {
 661     try {
 662         // First check for basic support from the xmlsec layer.
 663         if (XSECPlatformUtils::g_algorithmMapper->mapURIToHandler(xmlAlgorithm)) {
 664             // Make sure the algorithm is registered.
 665             algmap_t::const_iterator i = m_algorithmMap.find(type);
 666             if (i != m_algorithmMap.end()) {
 667                 algmap_t::value_type::second_type::const_iterator j = i->second.find(xmlAlgorithm);
 668                 if (j != i->second.end())
 669                     return true;
 670             }
 671         }
 672     }
 673     catch (XSECException&) {
 674     }
 675     return false;
 676 }
 677
 678 void XMLToolingInternalConfig::registerXMLAlgorithms()
 679 {
 680     // The deal with all the macros is to try and figure out with no false positives whether
 681     // the OpenSSL version *and* the XML-Security version support the algorithms.
 682
 683     // With ECDSA, XML-Security exports a public macro for OpenSSL's support, and any
 684     // versions of XML-Security that didn't provide the macro don't handle ECDSA anyway.
 685
 686     // With AES, all supported XML-Security versions export a macro for OpenSSL's support.
 687
 688     // With SHA2, only the very latest XML-Security exports a macro, but all the versions
 689     // will handle SHA2 *if* OpenSSL does. So we use our own macro to check OpenSSL's
 690     // support, and then add checks to see if specific versions are compiled out.
 691
 692     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIMD5, nullptr, 0, ALGTYPE_DIGEST);
 693     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURISHA1, nullptr, 0, ALGTYPE_DIGEST);
 694 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA256)
 695     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURISHA224, nullptr, 0, ALGTYPE_DIGEST);
 696     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURISHA256, nullptr, 0, ALGTYPE_DIGEST);
 697 #endif
 698 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA512)
 699     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURISHA384, nullptr, 0, ALGTYPE_DIGEST);
 700     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURISHA512, nullptr, 0, ALGTYPE_DIGEST);
 701 #endif
 702
 703     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIDSA_SHA1, "DSA", 0, ALGTYPE_SIGN);
 704     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_MD5, "RSA", 0, ALGTYPE_SIGN);
 705     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_SHA1, "RSA", 0, ALGTYPE_SIGN);
 706 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA256)
 707     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_SHA224, "RSA", 0, ALGTYPE_SIGN);
 708     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_SHA256, "RSA", 0, ALGTYPE_SIGN);
 709 #endif
 710 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA512)
 711     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_SHA384, "RSA", 0, ALGTYPE_SIGN);
 712     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_SHA512, "RSA", 0, ALGTYPE_SIGN);
 713 #endif
 714
 715 #ifdef XSEC_OPENSSL_HAVE_EC
 716     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIECDSA_SHA1, "EC", 0, ALGTYPE_SIGN);
 717 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA256)
 718     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIECDSA_SHA256, "EC", 0, ALGTYPE_SIGN);
 719 # endif
 720 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA512)
 721     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIECDSA_SHA384, "EC", 0, ALGTYPE_SIGN);
 722     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIECDSA_SHA512, "EC", 0, ALGTYPE_SIGN);
 723 # endif
 724 #endif
 725
 726     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIHMAC_SHA1, "HMAC", 0, ALGTYPE_SIGN);
 727 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA256)
 728     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIHMAC_SHA224, "HMAC", 0, ALGTYPE_SIGN);
 729     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIHMAC_SHA256, "HMAC", 0, ALGTYPE_SIGN);
 730 #endif
 731 #if defined(XMLTOOLING_OPENSSL_HAVE_SHA2) && !defined(OPENSSL_NO_SHA512)
 732     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIHMAC_SHA384, "HMAC", 0, ALGTYPE_SIGN);
 733     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIHMAC_SHA512, "HMAC", 0, ALGTYPE_SIGN);
 734 #endif
 735
 736     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_1_5, "RSA", 0, ALGTYPE_KEYENCRYPT);
 737     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIRSA_OAEP_MGFP1, "RSA", 0, ALGTYPE_KEYENCRYPT);
 738
 739     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURI3DES_CBC, "DESede", 192, ALGTYPE_ENCRYPT);
 740     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIKW_3DES, "DESede", 192, ALGTYPE_KEYENCRYPT);
 741
 742 #ifdef XSEC_OPENSSL_HAVE_AES
 743     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIAES128_CBC, "AES", 128, ALGTYPE_ENCRYPT);
 744     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIKW_AES128, "AES", 128, ALGTYPE_KEYENCRYPT);
 745
 746     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIAES192_CBC, "AES", 192, ALGTYPE_ENCRYPT);
 747     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIKW_AES192, "AES", 192, ALGTYPE_KEYENCRYPT);
 748
 749     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIAES256_CBC, "AES", 256, ALGTYPE_ENCRYPT);
 750     registerXMLAlgorithm(DSIGConstants::s_unicodeStrURIKW_AES256, "AES", 256, ALGTYPE_KEYENCRYPT);
 751 #endif
 752 }
 753
 754 #endif
 755
 756 #ifdef WIN32
 757
 758 extern "C" __declspec(dllexport) BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID)
 759 {
 760     if (fdwReason == DLL_THREAD_DETACH || fdwReason == DLL_PROCESS_DETACH)
 761         ThreadKey::onDetach();
 762     return TRUE;
 763 }
 764
 765 #endif