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/MetadataFilter.h"
  37 #include "saml2/metadata/MetadataProvider.h"
  38 #include "util/SAMLConstants.h"
  39
  40 #include <xmltooling/XMLToolingConfig.h>
  41 #include <xmltooling/signature/Signature.h>
  42 #include <xmltooling/util/NDC.h>
  43
  44 #include <log4cpp/Category.hh>
  45 #include <xsec/enc/XSECCryptoException.hpp>
  46 #include <xsec/enc/XSECCryptoProvider.hpp>
  47 #include <xsec/utils/XSECPlatformUtils.hpp>
  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(SecurityPolicyException,opensaml);
  71 DECL_XMLTOOLING_EXCEPTION_FACTORY(MetadataException,opensaml::saml2md);
  72 DECL_XMLTOOLING_EXCEPTION_FACTORY(MetadataFilterException,opensaml::saml2md);
  73 DECL_XMLTOOLING_EXCEPTION_FACTORY(BindingException,opensaml);
  74 DECL_XMLTOOLING_EXCEPTION_FACTORY(ProfileException,opensaml);
  75 DECL_XMLTOOLING_EXCEPTION_FACTORY(FatalProfileException,opensaml);
  76 DECL_XMLTOOLING_EXCEPTION_FACTORY(RetryableProfileException,opensaml);
  77
  78 namespace opensaml {
  79    SAMLInternalConfig g_config;
  80 }
  81
  82 SAMLConfig& SAMLConfig::getConfig()
  83 {
  84     return g_config;
  85 }
  86
  87 SAMLInternalConfig& SAMLInternalConfig::getInternalConfig()
  88 {
  89     return g_config;
  90 }
  91
  92 void SAMLConfig::setArtifactMap(ArtifactMap* artifactMap)
  93 {
  94     delete m_artifactMap;
  95     m_artifactMap = artifactMap;
  96 }
  97
  98 bool SAMLInternalConfig::init(bool initXMLTooling)
  99 {
 100 #ifdef _DEBUG
 101     xmltooling::NDC ndc("init");
 102 #endif
 103     Category& log=Category::getInstance(SAML_LOGCAT".SAMLConfig");
 104     log.debug("library initialization started");
 105
 106     if (initXMLTooling) {
 107         XMLToolingConfig::getConfig().init();
 108         log.debug("XMLTooling library initialized");
 109     }
 110
 111     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(ArtifactException,opensaml);
 112     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(SecurityPolicyException,opensaml);
 113     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(MetadataException,opensaml::saml2md);
 114     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(MetadataFilterException,opensaml::saml2md);
 115     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(BindingException,opensaml);
 116     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(ProfileException,opensaml);
 117     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(FatalProfileException,opensaml);
 118     REGISTER_XMLTOOLING_EXCEPTION_FACTORY(RetryableProfileException,opensaml);
 119
 120     saml1::registerAssertionClasses();
 121     saml1p::registerProtocolClasses();
 122     saml2::registerAssertionClasses();
 123     saml2p::registerProtocolClasses();
 124     saml2md::registerMetadataClasses();
 125     saml2md::registerMetadataProviders();
 126     saml2md::registerMetadataFilters();
 127     registerSAMLArtifacts();
 128     registerMessageEncoders();
 129     registerMessageDecoders();
 130     registerSecurityPolicyRules();
 131
 132     log.info("library initialization complete");
 133     return true;
 134 }
 135
 136 void SAMLInternalConfig::term(bool termXMLTooling)
 137 {
 138 #ifdef _DEBUG
 139     xmltooling::NDC ndc("term");
 140 #endif
 141     Category& log=Category::getInstance(SAML_LOGCAT".SAMLConfig");
 142
 143     MessageDecoderManager.deregisterFactories();
 144     MessageEncoderManager.deregisterFactories();
 145     SecurityPolicyRuleManager.deregisterFactories();
 146     SAMLArtifactManager.deregisterFactories();
 147     MetadataFilterManager.deregisterFactories();
 148     MetadataProviderManager.deregisterFactories();
 149
 150     delete m_artifactMap;
 151     m_artifactMap = NULL;
 152
 153     if (termXMLTooling) {
 154         XMLToolingConfig::getConfig().term();
 155         log.debug("XMLTooling library shut down");
 156     }
 157     log.info("library shutdown complete");
 158 }
 159
 160 void SAMLInternalConfig::generateRandomBytes(void* buf, unsigned int len)
 161 {
 162     try {
 163         if (XSECPlatformUtils::g_cryptoProvider->getRandom(reinterpret_cast<unsigned char*>(buf),len)<len)
 164             throw XMLSecurityException("Unable to generate random data; was PRNG seeded?");
 165     }
 166     catch (XSECCryptoException& e) {
 167         throw XMLSecurityException("Unable to generate random data: $1",params(1,e.getMsg()));
 168     }
 169 }
 170
 171 void SAMLInternalConfig::generateRandomBytes(std::string& buf, unsigned int len)
 172 {
 173     buf.erase();
 174     auto_ptr<unsigned char> hold(new unsigned char[len]);
 175     generateRandomBytes(hold.get(),len);
 176     for (unsigned int i=0; i<len; i++)
 177         buf+=(hold.get())[i];
 178 }
 179
 180 XMLCh* SAMLInternalConfig::generateIdentifier()
 181 {
 182     unsigned char key[17];
 183     generateRandomBytes(key,16);
 184
 185     char hexform[34];
 186     sprintf(hexform,"_%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
 187             key[0],key[1],key[2],key[3],key[4],key[5],key[6],key[7],
 188             key[8],key[9],key[10],key[11],key[12],key[13],key[14],key[15]);
 189     hexform[33]=0;
 190     return XMLString::transcode(hexform);
 191 }
 192
 193 string SAMLInternalConfig::hashSHA1(const char* s, bool toHex)
 194 {
 195     static char DIGITS[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
 196
 197     auto_ptr<XSECCryptoHash> hasher(XSECPlatformUtils::g_cryptoProvider->hashSHA1());
 198     if (hasher.get()) {
 199         unsigned char buf[21];
 200         hasher->hash(reinterpret_cast<unsigned char*>(const_cast<char*>(s)),strlen(s));
 201         if (hasher->finish(buf,20)==20) {
 202             string ret;
 203             if (toHex) {
 204                 for (unsigned int i=0; i<20; i++) {
 205                     ret+=(DIGITS[((unsigned char)(0xF0 & buf[i])) >> 4 ]);
 206                     ret+=(DIGITS[0x0F & buf[i]]);
 207                 }
 208             }
 209             else {
 210                 for (unsigned int i=0; i<20; i++) {
 211                     ret+=buf[i];
 212                 }
 213             }
 214             return ret;
 215         }
 216     }
 217     throw XMLSecurityException("Unable to generate SHA-1 hash.");
 218 }
 219
 220 using namespace saml2p;
 221 using namespace saml2md;
 222
 223 void opensaml::annotateException(XMLToolingException* e, const EntityDescriptor* entity, const Status* status, bool rethrow)
 224 {
 225     const RoleDescriptor* role = NULL;
 226     if (entity) {
 227         const list<XMLObject*>& roles=entity->getOrderedChildren();
 228         for (list<XMLObject*>::const_iterator child=roles.begin(); !role && child!=roles.end(); ++child) {
 229             role=dynamic_cast<RoleDescriptor*>(*child);
 230             if (role && !role->isValid())
 231                 role = NULL;
 232         }
 233     }
 234     annotateException(e, role, status, rethrow);
 235 }
 236
 237 void opensaml::annotateException(XMLToolingException* e, const RoleDescriptor* role, const Status* status, bool rethrow)
 238 {
 239     if (role) {
 240         auto_ptr_char id(dynamic_cast<EntityDescriptor*>(role->getParent())->getEntityID());
 241         e->addProperty("entityID",id.get());
 242
 243         const vector<ContactPerson*>& contacts=role->getContactPersons();
 244         for (vector<ContactPerson*>::const_iterator c=contacts.begin(); c!=contacts.end(); ++c) {
 245             const XMLCh* ctype=(*c)->getContactType();
 246             if (ctype && (XMLString::equals(ctype,ContactPerson::CONTACT_SUPPORT)
 247                     || XMLString::equals(ctype,ContactPerson::CONTACT_TECHNICAL))) {
 248                 GivenName* fname=(*c)->getGivenName();
 249                 SurName* lname=(*c)->getSurName();
 250                 auto_ptr_char first(fname ? fname->getName() : NULL);
 251                 auto_ptr_char last(lname ? lname->getName() : NULL);
 252                 if (first.get() && last.get()) {
 253                     string contact=string(first.get()) + ' ' + last.get();
 254                     e->addProperty("contactName",contact.c_str());
 255                 }
 256                 else if (first.get())
 257                     e->addProperty("contactName",first.get());
 258                 else if (last.get())
 259                     e->addProperty("contactName",last.get());
 260                 const vector<EmailAddress*>& emails=const_cast<const ContactPerson*>(*c)->getEmailAddresss();
 261                 if (!emails.empty()) {
 262                     auto_ptr_char email(emails.front()->getAddress());
 263                     if (email.get())
 264                         e->addProperty("contactEmail",email.get());
 265                 }
 266                 break;
 267             }
 268         }
 269
 270         auto_ptr_char eurl(role->getErrorURL());
 271         if (eurl.get()) {
 272             e->addProperty("errorURL",eurl.get());
 273         }
 274     }
 275
 276     if (status) {
 277         auto_ptr_char sc(status->getStatusCode() ? status->getStatusCode()->getValue() : NULL);
 278         if (sc.get() && *sc.get())
 279             e->addProperty("statusCode", sc.get());
 280         if (status->getStatusCode()->getStatusCode()) {
 281             auto_ptr_char sc2(status->getStatusCode()->getStatusCode()->getValue());
 282             if (sc2.get() && *sc.get())
 283                 e->addProperty("statusCode2", sc2.get());
 284         }
 285         if (status->getStatusMessage()) {
 286             auto_ptr_char msg(status->getStatusMessage()->getMessage());
 287             if (msg.get() && *msg.get())
 288                 e->addProperty("statusMessage", msg.get());
 289         }
 290     }
 291
 292     if (rethrow)
 293         e->raise();
 294 }