xmltooling/security/impl/ChainingTrustEngine.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  * ChainingTrustEngine.cpp
  19  *
  20  * OpenSSLTrustEngine that uses multiple engines in sequence.
  21  */
  22
  23 #include "internal.h"
  24 #include "exceptions.h"
  25 #include "logging.h"
  26 #include "security/ChainingTrustEngine.h"
  27 #include "util/XMLHelper.h"
  28
  29 #include <algorithm>
  30 #include <xercesc/util/XMLUniDefs.hpp>
  31
  32 using namespace xmlsignature;
  33 using namespace xmltooling::logging;
  34 using namespace xmltooling;
  35 using namespace std;
  36
  37 using xercesc::DOMElement;
  38
  39 namespace xmltooling {
  40     TrustEngine* XMLTOOL_DLLLOCAL ChainingTrustEngineFactory(const DOMElement* const & e)
  41     {
  42         return new ChainingTrustEngine(e);
  43     }
  44 };
  45
  46 static const XMLCh _TrustEngine[] =                 UNICODE_LITERAL_11(T,r,u,s,t,E,n,g,i,n,e);
  47 static const XMLCh type[] =                         UNICODE_LITERAL_4(t,y,p,e);
  48
  49 ChainingTrustEngine::ChainingTrustEngine(const DOMElement* e) : TrustEngine(e) {
  50     Category& log=Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine."CHAINING_TRUSTENGINE);
  51     e = e ? XMLHelper::getFirstChildElement(e, _TrustEngine) : nullptr;
  52     while (e) {
  53         try {
  54             auto_ptr_char temp(e->getAttributeNS(nullptr,type));
  55             if (temp.get() && *temp.get()) {
  56                 log.info("building TrustEngine of type %s", temp.get());
  57                 TrustEngine* engine = XMLToolingConfig::getConfig().TrustEngineManager.newPlugin(temp.get(), e);
  58                 m_engines.push_back(engine);
  59                 SignatureTrustEngine* sig = dynamic_cast<SignatureTrustEngine*>(engine);
  60                 if (sig)
  61                     m_sigEngines.push_back(sig);
  62                 X509TrustEngine* x509 = dynamic_cast<X509TrustEngine*>(engine);
  63                 if (x509)
  64                     m_x509Engines.push_back(x509);
  65                 OpenSSLTrustEngine* ossl = dynamic_cast<OpenSSLTrustEngine*>(engine);
  66                 if (ossl)
  67                     m_osslEngines.push_back(ossl);
  68             }
  69         }
  70         catch (exception& ex) {
  71             log.error("error building TrustEngine: %s", ex.what());
  72         }
  73         e = XMLHelper::getNextSiblingElement(e, _TrustEngine);
  74     }
  75 }
  76
  77 ChainingTrustEngine::~ChainingTrustEngine() {
  78     for_each(m_engines.begin(), m_engines.end(), xmltooling::cleanup<TrustEngine>());
  79 }
  80
  81 void ChainingTrustEngine::addTrustEngine(TrustEngine* newEngine)
  82 {
  83     m_engines.push_back(newEngine);
  84 }
  85
  86 TrustEngine* ChainingTrustEngine::removeTrustEngine(TrustEngine* oldEngine)
  87 {
  88     for (vector<TrustEngine*>::iterator i=m_engines.begin(); i!=m_engines.end(); i++) {
  89         if (oldEngine==(*i)) {
  90             m_engines.erase(i);
  91             return oldEngine;
  92         }
  93     }
  94     return nullptr;
  95 }
  96
  97 bool ChainingTrustEngine::validate(Signature& sig, const CredentialResolver& credResolver, CredentialCriteria* criteria) const
  98 {
  99     for (vector<SignatureTrustEngine*>::const_iterator i=m_sigEngines.begin(); i!=m_sigEngines.end(); ++i) {
 100         if ((*i)->validate(sig,credResolver,criteria))
 101             return true;
 102     }
 103     return false;
 104 }
 105
 106 bool ChainingTrustEngine::validate(
 107     const XMLCh* sigAlgorithm,
 108     const char* sig,
 109     KeyInfo* keyInfo,
 110     const char* in,
 111     unsigned int in_len,
 112     const CredentialResolver& credResolver,
 113     CredentialCriteria* criteria
 114     ) const
 115 {
 116     for (vector<SignatureTrustEngine*>::const_iterator i=m_sigEngines.begin(); i!=m_sigEngines.end(); ++i) {
 117         if ((*i)->validate(sigAlgorithm, sig, keyInfo, in, in_len, credResolver, criteria))
 118             return true;
 119     }
 120     return false;
 121 }
 122
 123 bool ChainingTrustEngine::validate(
 124     XSECCryptoX509* certEE,
 125     const vector<XSECCryptoX509*>& certChain,
 126     const CredentialResolver& credResolver,
 127     CredentialCriteria* criteria
 128     ) const
 129 {
 130     for (vector<X509TrustEngine*>::const_iterator i=m_x509Engines.begin(); i!=m_x509Engines.end(); ++i) {
 131         if ((*i)->validate(certEE,certChain,credResolver,criteria))
 132             return true;
 133     }
 134     return false;
 135 }
 136
 137 bool ChainingTrustEngine::validate(
 138     X509* certEE,
 139     STACK_OF(X509)* certChain,
 140     const CredentialResolver& credResolver,
 141     CredentialCriteria* criteria
 142     ) const
 143 {
 144     for (vector<OpenSSLTrustEngine*>::const_iterator i=m_osslEngines.begin(); i!=m_osslEngines.end(); ++i) {
 145         if ((*i)->validate(certEE,certChain,credResolver,criteria))
 146             return true;
 147     }
 148     return false;
 149 }