saml/binding/impl/SOAPClient.cpp

   1 /*
   2  *  Copyright 2001-2009 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  * SOAPClient.cpp
  19  *
  20  * Implements SOAP 1.1 messaging over a transport.
  21  */
  22
  23 #include "internal.h"
  24 #include "exceptions.h"
  25 #include "version.h"
  26 #include "binding/SecurityPolicy.h"
  27 #include "binding/SOAPClient.h"
  28 #include "saml2/metadata/Metadata.h"
  29 #include "saml2/metadata/MetadataProvider.h"
  30
  31 #include <xmltooling/security/X509TrustEngine.h>
  32 #include <xmltooling/soap/SOAP.h>
  33 #include <xmltooling/soap/HTTPSOAPTransport.h>
  34 #include <xsec/framework/XSECDefs.hpp>
  35
  36 using namespace opensaml::saml2;
  37 using namespace opensaml::saml2md;
  38 using namespace opensaml;
  39 using namespace xmltooling;
  40 using namespace std;
  41
  42 SOAPClient::SOAPClient(SecurityPolicy& policy)
  43     : soap11::SOAPClient(policy.getValidating()), m_policy(policy), m_force(true), m_peer(NULL), m_criteria(NULL)
  44 {
  45 }
  46
  47 void SOAPClient::send(const soap11::Envelope& env, const char* from, MetadataCredentialCriteria& to, const char* endpoint)
  48 {
  49     // Clear policy.
  50     m_policy.reset();
  51
  52     m_criteria = &to;
  53     m_peer = &(to.getRole());
  54
  55     const xmltooling::QName& role = m_peer->getElementQName();
  56     if (XMLString::equals(role.getLocalPart(),RoleDescriptor::LOCAL_NAME))
  57         m_policy.setRole(m_peer->getSchemaType());
  58     else
  59         m_policy.setRole(&role);
  60
  61     // Establish the "expected" issuer identity.
  62     const XMLCh* entityID = dynamic_cast<const EntityDescriptor*>(m_peer->getParent())->getEntityID();
  63     m_policy.setIssuer(entityID);
  64     if (!m_policy.getIssuerMetadata())
  65         m_policy.setIssuerMetadata(m_peer);
  66
  67     // Call the base class.
  68     auto_ptr_char pn(entityID);
  69     soap11::SOAPClient::send(env, SOAPTransport::Address(from, pn.get(), endpoint));
  70 }
  71
  72 void SOAPClient::prepareTransport(xmltooling::SOAPTransport& transport)
  73 {
  74     HTTPSOAPTransport* http = dynamic_cast<HTTPSOAPTransport*>(&transport);
  75     if (http) {
  76         http->setRequestHeader("SOAPAction", "http://www.oasis-open.org/committees/security");
  77         http->setRequestHeader("Xerces-C", XERCES_FULLVERSIONDOT);
  78         http->setRequestHeader("XML-Security-C", XSEC_FULLVERSIONDOT);
  79         http->setRequestHeader("OpenSAML-C", OPENSAML_FULLVERSIONDOT);
  80     }
  81
  82     const X509TrustEngine* engine = dynamic_cast<const X509TrustEngine*>(m_policy.getTrustEngine());
  83     if (engine) {
  84         if (!transport.setTrustEngine(engine, m_policy.getMetadataProvider(), m_criteria, m_force))
  85             throw BindingException("Unable to install X509TrustEngine into SOAPTransport.");
  86     }
  87 }
  88
  89 soap11::Envelope* SOAPClient::receive()
  90 {
  91     auto_ptr<soap11::Envelope> env(soap11::SOAPClient::receive());
  92     if (env.get()) {
  93         if (m_peer && m_transport->isAuthenticated()) {
  94             // Set flag based on peer identity.
  95             m_policy.setAuthenticated(true);
  96         }
  97
  98         // Run policy against SOAP layer.
  99         m_policy.evaluate(*(env.get()));
 100     }
 101     return env.release();
 102 }
 103
 104 void SOAPClient::reset()
 105 {
 106     m_criteria = NULL;
 107     m_peer = NULL;
 108     soap11::SOAPClient::reset();
 109     m_policy.reset();
 110 }