saml/SAMLConfig.cpp

   1
   2 /*
   3  *  Copyright 2001-2007 Internet2
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 /**
  19  * SAMLConfig.cpp
  20  *
  21  * Library configuration
  22  */
  23
  24 #include "internal.h"
  25 #include "exceptions.h"
  26 #include "SAMLConfig.h"
  27 #include "binding/ArtifactMap.h"
  28 #include "binding/MessageDecoder.h"
  29 #include "binding/MessageEncoder.h"
  30 #include "binding/SAMLArtifact.h"
  31 #include "binding/SecurityPolicyRule.h"
  32 #include "saml1/core/Assertions.h"
  33 #include "saml1/core/Protocols.h"
  34 #include "saml2/core/Protocols.h"
  35 #include "saml2/metadata/Metadata.h"
  36 #include "saml2/metadata/MetadataProvider.h"
  37 #include "util/SAMLConstants.h"
  38
  39 #include <xmltooling/XMLToolingConfig.h>
  40 #include <xmltooling/signature/Signature.h>
  41 #include <xmltooling/util/NDC.h>
  42
  43 #include <log4cpp/Category.hh>
  44 #include <xsec/enc/XSECCryptoException.hpp>
  45 #include <xsec/enc/XSECCryptoProvider.hpp>
  46 #include <xsec/utils/XSECPlatformUtils.hpp>
  47 #include <openssl/err.h>
  48
  49 using namespace opensaml;
  50 using namespace xmlsignature;
  51 using namespace xmltooling;
  52 using namespace log4cpp;
  53 using namespace std;
  54
  55 // Expose entry points when used as an extension library
  56
  57 extern "C" int SAML_API xmltooling_extension_init(void*)
  58 {
  59     if (SAMLConfig::getConfig().init(false))
  60         return 0;
  61     return -1;
  62 }
  63
  64 extern "C" void SAML_API xmltooling_extension_term()
  65 {
  66     SAMLConfig::getConfig().term(false);
  67 }
  68
  69 DECL_XMLTOOLING_EXCEPTION_FACTORY(ArtifactException,opensaml);
  70 DECL_XMLTOOLING_EXCEPTION_FACTORY(MetadataException,opensaml::saml2md);
  71 DECL_XMLTOOLING_EXCEPTION_FACTORY(MetadataFilterException,opensaml::saml2md);
  72 DECL_XMLTOOLING_EXCEPTION_FACTORY(BindingException,opensaml);
  73 DECL_XMLTOOLING_EXCEPTION_FACTORY(ProfileException,opensaml);
  74 DECL_XMLTOOLING_EXCEPTION_FACTORY(FatalProfileException,opensaml);
  75 DECL_XMLTOOLING_EXCEPTION_FACTORY(RetryableProfileException,opensaml);
  76
  77 namespace opensaml {
  78    SAMLInternalConfig g_config;
  79 }
  80
  81 SAMLConfig& SAMLConfig::getConfig()
  82 {
  83     return g_config;
  84 }
  85
  86 SAMLInternalConfig& SAMLInternalConfig::getInternalConfig()
  87 {
  88     return g_config;
  89 }
  90
  91 void SAMLConfig::setArtifactMap(ArtifactMap* artifactMap)
  92 {
  93     delete m_artifactMap;
  94     m_artifactMap = artifactMap;
  95 }
  96
  97 bool SAMLInternalConfig::init(bool initXMLTooling)
  98 {
  99 #ifdef _DEBUG
 100     xmltooling::NDC ndc("init");
 101 #endif
 102     Category& log=Category::getInstance(SAML_LOGCAT".SAMLConfig");
 103     log.debug("library initialization started");
 104
 105     if (initXMLTooling) {
 106         XMLToolingConfig::getConfig().init();
 107         log.debug("XMLTooling library initialized");
 108     }
 109
 110     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(ArtifactException,opensaml);
 111     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(MetadataException,opensaml::saml2md);
 112     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(MetadataFilterException,opensaml::saml2md);
 113     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(BindingException,opensaml);
 114     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(ProfileException,opensaml);
 115     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(FatalProfileException,opensaml);
 116     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(RetryableProfileException,opensaml);
 117
 118     saml1::registerAssertionClasses();
 119     saml1p::registerProtocolClasses();
 120     saml2::registerAssertionClasses();
 121     saml2p::registerProtocolClasses();
 122     saml2md::registerMetadataClasses();
 123     saml2md::registerMetadataProviders();
 124     saml2md::registerMetadataFilters();
 125     registerSAMLArtifacts();
 126     registerMessageEncoders();
 127     registerMessageDecoders();
 128     registerSecurityPolicyRules();
 129
 130     log.info("library initialization complete");
 131     return true;
 132 }
 133
 134 void SAMLInternalConfig::term(bool termXMLTooling)
 135 {
 136 #ifdef _DEBUG
 137     xmltooling::NDC ndc("term");
 138 #endif
 139     Category& log=Category::getInstance(SAML_LOGCAT".SAMLConfig");
 140
 141     MessageDecoderManager.deregisterFactories();
 142     MessageEncoderManager.deregisterFactories();
 143     SecurityPolicyRuleManager.deregisterFactories();
 144     SAMLArtifactManager.deregisterFactories();
 145     MetadataFilterManager.deregisterFactories();
 146     MetadataProviderManager.deregisterFactories();
 147
 148     delete m_artifactMap;
 149     m_artifactMap = NULL;
 150
 151     if (termXMLTooling) {
 152         XMLToolingConfig::getConfig().term();
 153         log.debug("XMLTooling library shut down");
 154     }
 155     log.info("library shutdown complete");
 156 }
 157
 158 void SAMLInternalConfig::generateRandomBytes(void* buf, unsigned int len)
 159 {
 160     try {
 161         if (XSECPlatformUtils::g_cryptoProvider->getRandom(reinterpret_cast<unsigned char*>(buf),len)<len)
 162             throw XMLSecurityException("Unable to generate random data; was PRNG seeded?");
 163     }
 164     catch (XSECCryptoException& e) {
 165         throw XMLSecurityException("Unable to generate random data: $1",params(1,e.getMsg()));
 166     }
 167 }
 168
 169 void SAMLInternalConfig::generateRandomBytes(std::string& buf, unsigned int len)
 170 {
 171     buf.erase();
 172     auto_ptr<unsigned char> hold(new unsigned char[len]);
 173     generateRandomBytes(hold.get(),len);
 174     for (unsigned int i=0; i<len; i++)
 175         buf+=(hold.get())[i];
 176 }
 177
 178 XMLCh* SAMLInternalConfig::generateIdentifier()
 179 {
 180     unsigned char key[17];
 181     generateRandomBytes(key,16);
 182
 183     char hexform[34];
 184     sprintf(hexform,"_%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
 185             key[0],key[1],key[2],key[3],key[4],key[5],key[6],key[7],
 186             key[8],key[9],key[10],key[11],key[12],key[13],key[14],key[15]);
 187     hexform[33]=0;
 188     return XMLString::transcode(hexform);
 189 }
 190
 191 string SAMLInternalConfig::hashSHA1(const char* s, bool toHex)
 192 {
 193     static char DIGITS[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
 194
 195     auto_ptr<XSECCryptoHash> hasher(XSECPlatformUtils::g_cryptoProvider->hashSHA1());
 196     if (hasher.get()) {
 197         unsigned char buf[21];
 198         hasher->hash(reinterpret_cast<unsigned char*>(const_cast<char*>(s)),strlen(s));
 199         if (hasher->finish(buf,20)==20) {
 200             string ret;
 201             if (toHex) {
 202                 for (unsigned int i=0; i<20; i++) {
 203                     ret+=(DIGITS[((unsigned char)(0xF0 & buf[i])) >> 4 ]);
 204                     ret+=(DIGITS[0x0F & buf[i]]);
 205                 }
 206             }
 207             else {
 208                 for (unsigned int i=0; i<20; i++) {
 209                     ret+=buf[i];
 210                 }
 211             }
 212             return ret;
 213         }
 214     }
 215     throw XMLSecurityException("Unable to generate SHA-1 hash.");
 216 }
 217
 218 void opensaml::log_openssl()
 219 {
 220     const char* file;
 221     const char* data;
 222     int flags,line;
 223
 224     unsigned long code=ERR_get_error_line_data(&file,&line,&data,&flags);
 225     while (code) {
 226         Category& log=Category::getInstance("OpenSSL");
 227         log.errorStream() << "error code: " << code << " in " << file << ", line " << line << CategoryStream::ENDLINE;
 228         if (data && (flags & ERR_TXT_STRING))
 229             log.errorStream() << "error data: " << data << CategoryStream::ENDLINE;
 230         code=ERR_get_error_line_data(&file,&line,&data,&flags);
 231     }
 232 }
 233
 234 using namespace saml2md;
 235
 236 void opensaml::annotateException(XMLToolingException* e, const EntityDescriptor* entity, bool rethrow)
 237 {
 238     if (entity) {
 239         auto_ptr_char id(entity->getEntityID());
 240         e->addProperty("entityID",id.get());
 241         const list<XMLObject*>& roles=entity->getOrderedChildren();
 242         for (list<XMLObject*>::const_iterator child=roles.begin(); child!=roles.end(); ++child) {
 243             const RoleDescriptor* role=dynamic_cast<RoleDescriptor*>(*child);
 244             if (role && role->isValid()) {
 245                 const vector<ContactPerson*>& contacts=role->getContactPersons();
 246                 for (vector<ContactPerson*>::const_iterator c=contacts.begin(); c!=contacts.end(); ++c) {
 247                     const XMLCh* ctype=(*c)->getContactType();
 248                     if (ctype && (XMLString::equals(ctype,ContactPerson::CONTACT_SUPPORT)
 249                             || XMLString::equals(ctype,ContactPerson::CONTACT_TECHNICAL))) {
 250                         GivenName* fname=(*c)->getGivenName();
 251                         SurName* lname=(*c)->getSurName();
 252                         auto_ptr_char first(fname ? fname->getName() : NULL);
 253                         auto_ptr_char last(lname ? lname->getName() : NULL);
 254                         if (first.get() && last.get()) {
 255                             string contact=string(first.get()) + ' ' + last.get();
 256                             e->addProperty("contactName",contact.c_str());
 257                         }
 258                         else if (first.get())
 259                             e->addProperty("contactName",first.get());
 260                         else if (last.get())
 261                             e->addProperty("contactName",last.get());
 262                         const vector<EmailAddress*>& emails=const_cast<const ContactPerson*>(*c)->getEmailAddresss();
 263                         if (!emails.empty()) {
 264                             auto_ptr_char email(emails.front()->getAddress());
 265                             if (email.get())
 266                                 e->addProperty("contactEmail",email.get());
 267                         }
 268                         break;
 269                     }
 270                 }
 271                 if (e->getProperty("contactName") || e->getProperty("contactEmail")) {
 272                     auto_ptr_char eurl(role->getErrorURL());
 273                     if (eurl.get()) {
 274                         e->addProperty("errorURL",eurl.get());
 275                     }
 276                 }
 277                 break;
 278             }
 279         }
 280     }
 281
 282     if (rethrow)
 283         e->raise();
 284 }
 285
 286 void opensaml::annotateException(XMLToolingException* e, const RoleDescriptor* role, bool rethrow)
 287 {
 288     if (role) {
 289         auto_ptr_char id(dynamic_cast<EntityDescriptor*>(role->getParent())->getEntityID());
 290         e->addProperty("entityID",id.get());
 291
 292         const vector<ContactPerson*>& contacts=role->getContactPersons();
 293         for (vector<ContactPerson*>::const_iterator c=contacts.begin(); c!=contacts.end(); ++c) {
 294             const XMLCh* ctype=(*c)->getContactType();
 295             if (ctype && (XMLString::equals(ctype,ContactPerson::CONTACT_SUPPORT)
 296                     || XMLString::equals(ctype,ContactPerson::CONTACT_TECHNICAL))) {
 297                 GivenName* fname=(*c)->getGivenName();
 298                 SurName* lname=(*c)->getSurName();
 299                 auto_ptr_char first(fname ? fname->getName() : NULL);
 300                 auto_ptr_char last(lname ? lname->getName() : NULL);
 301                 if (first.get() && last.get()) {
 302                     string contact=string(first.get()) + ' ' + last.get();
 303                     e->addProperty("contactName",contact.c_str());
 304                 }
 305                 else if (first.get())
 306                     e->addProperty("contactName",first.get());
 307                 else if (last.get())
 308                     e->addProperty("contactName",last.get());
 309                 const vector<EmailAddress*>& emails=const_cast<const ContactPerson*>(*c)->getEmailAddresss();
 310                 if (!emails.empty()) {
 311                     auto_ptr_char email(emails.front()->getAddress());
 312                     if (email.get())
 313                         e->addProperty("contactEmail",email.get());
 314                 }
 315                 break;
 316             }
 317         }
 318
 319         auto_ptr_char eurl(role->getErrorURL());
 320         if (eurl.get()) {
 321             e->addProperty("errorURL",eurl.get());
 322         }
 323     }
 324
 325     if (rethrow)
 326         e->raise();
 327 }