xmltooling/security/impl/ChainingTrustEngine.cpp

   1 /*
   2  *  Copyright 2001-2007 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  * TrustEngine that uses multiple engines in sequence.
  21  */
  22
  23 #include "internal.h"
  24 #include "exceptions.h"
  25 #include "security/ChainingTrustEngine.h"
  26 #include "util/XMLHelper.h"
  27
  28 #include <log4cpp/Category.hh>
  29 #include <xercesc/util/XMLUniDefs.hpp>
  30
  31 using namespace xmlsignature;
  32 using namespace xmltooling;
  33 using namespace log4cpp;
  34 using namespace std;
  35
  36 namespace xmltooling {
  37     TrustEngine* XMLTOOL_DLLLOCAL ChainingTrustEngineFactory(const DOMElement* const & e)
  38     {
  39         return new ChainingTrustEngine(e);
  40     }
  41 };
  42
  43 static const XMLCh _TrustEngine[] =                 UNICODE_LITERAL_11(T,r,u,s,t,E,n,g,i,n,e);
  44 static const XMLCh type[] =                         UNICODE_LITERAL_4(t,y,p,e);
  45
  46 ChainingTrustEngine::ChainingTrustEngine(const DOMElement* e) : OpenSSLTrustEngine(e) {
  47     Category& log=Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine");
  48     try {
  49         e = e ? XMLHelper::getFirstChildElement(e, _TrustEngine) : NULL;
  50         while (e) {
  51             auto_ptr_char temp(e->getAttributeNS(NULL,type));
  52             if (temp.get() && *temp.get()) {
  53                 log.info("building TrustEngine of type %s", temp.get());
  54                 m_engines.push_back(XMLToolingConfig::getConfig().TrustEngineManager.newPlugin(temp.get(), e));
  55             }
  56             e = XMLHelper::getNextSiblingElement(e, _TrustEngine);
  57         }
  58     }
  59     catch (exception&) {
  60         for_each(m_engines.begin(), m_engines.end(), xmltooling::cleanup<TrustEngine>());
  61         throw;
  62     }
  63 }
  64
  65 ChainingTrustEngine::~ChainingTrustEngine() {
  66     for_each(m_engines.begin(), m_engines.end(), xmltooling::cleanup<TrustEngine>());
  67 }
  68
  69 bool ChainingTrustEngine::validate(Signature& sig, const CredentialResolver& credResolver, CredentialCriteria* criteria) const
  70 {
  71     for (vector<TrustEngine*>::const_iterator i=m_engines.begin(); i!=m_engines.end(); ++i) {
  72         if ((*i)->validate(sig,credResolver,criteria))
  73             return true;
  74     }
  75     return false;
  76 }
  77
  78 bool ChainingTrustEngine::validate(
  79     const XMLCh* sigAlgorithm,
  80     const char* sig,
  81     KeyInfo* keyInfo,
  82     const char* in,
  83     unsigned int in_len,
  84     const CredentialResolver& credResolver,
  85     CredentialCriteria* criteria
  86     ) const
  87 {
  88     for (vector<TrustEngine*>::const_iterator i=m_engines.begin(); i!=m_engines.end(); ++i) {
  89         if ((*i)->validate(sigAlgorithm, sig, keyInfo, in, in_len, credResolver, criteria))
  90             return true;
  91     }
  92     return false;
  93 }
  94
  95 bool ChainingTrustEngine::validate(
  96     XSECCryptoX509* certEE,
  97     const vector<XSECCryptoX509*>& certChain,
  98     const CredentialResolver& credResolver,
  99     CredentialCriteria* criteria
 100     ) const
 101 {
 102     X509TrustEngine* down;
 103     for (vector<TrustEngine*>::const_iterator i=m_engines.begin(); i!=m_engines.end(); ++i) {
 104         if ((down = dynamic_cast<X509TrustEngine*>(*i)) &&
 105                 down->validate(certEE,certChain,credResolver,criteria))
 106             return true;
 107     }
 108     return false;
 109 }
 110
 111 bool ChainingTrustEngine::validate(
 112     X509* certEE,
 113     STACK_OF(X509)* certChain,
 114     const CredentialResolver& credResolver,
 115     CredentialCriteria* criteria
 116     ) const
 117 {
 118     OpenSSLTrustEngine* down;
 119     for (vector<TrustEngine*>::const_iterator i=m_engines.begin(); i!=m_engines.end(); ++i) {
 120         if ((down = dynamic_cast<OpenSSLTrustEngine*>(*i)) && down->validate(certEE,certChain,credResolver,criteria))
 121             return true;
 122     }
 123     return false;
 124 }