saml/saml2/profile/BrowserSSOProfile20Validator.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  * BrowserSSOProfile20Validator.cpp
  19  *
  20  * SAML 2.0 Browser SSO Profile Assertion Validator
  21  */
  22
  23 #include "internal.h"
  24 #include "saml2/core/Assertions.h"
  25 #include "binding/HTTPRequest.h"
  26 #include "saml2/profile/BrowserSSOProfileValidator.h"
  27
  28 #include <log4cpp/Category.hh>
  29 #include <xmltooling/util/NDC.h>
  30
  31 using namespace opensaml::saml2;
  32 using namespace xmltooling;
  33 using namespace log4cpp;
  34 using namespace std;
  35
  36 void BrowserSSOProfileValidator::validateAssertion(const Assertion& assertion) const
  37 {
  38 #ifdef _DEBUG
  39     xmltooling::NDC ndc("validate");
  40 #endif
  41     Category& log = Category::getInstance(SAML_LOGCAT".AssertionValidator");
  42
  43     // The assertion MUST have proper confirmation requirements.
  44     const Subject* subject = assertion.getSubject();
  45     if (subject) {
  46         const vector<SubjectConfirmation*>& confs = subject->getSubjectConfirmations();
  47         for (vector<SubjectConfirmation*>::const_iterator sc = confs.begin(); sc!=confs.end(); ++sc) {
  48             if (XMLString::equals((*sc)->getMethod(), SubjectConfirmation::BEARER)) {
  49                 const SubjectConfirmationDataType* data = dynamic_cast<const SubjectConfirmationDataType*>((*sc)->getSubjectConfirmationData());
  50
  51                 if (m_destination.get()) {
  52                     if (!XMLString::equals(m_destination.get(), data ? data->getRecipient() : NULL)) {
  53                         log.error("bearer confirmation failed with recipient mismatch");
  54                         continue;
  55                     }
  56                 }
  57
  58                 if (m_requestID.get()) {
  59                     if (!XMLString::equals(m_requestID.get(), data ? data->getInResponseTo() : NULL)) {
  60                         log.error("bearer confirmation failed with request correlation mismatch");
  61                         continue;
  62                     }
  63                 }
  64
  65                 if (m_ts) {
  66                     if (!data || !data->getNotOnOrAfter()) {
  67                         log.error("bearer confirmation missing NotOnOrAfter attribute");
  68                         continue;
  69                     }
  70                     else if (data->getNotOnOrAfterEpoch() <= m_ts - XMLToolingConfig::getConfig().clock_skew_secs) {
  71                         log.error("bearer confirmation has expired");
  72                         continue;
  73                     }
  74                 }
  75
  76                 // Save off client address.
  77                 if (data) {
  78                     auto_ptr_char ip(data->getAddress());
  79                     if (ip.get())
  80                         m_address = ip.get();
  81                 }
  82
  83                 // Pass up for additional checking.
  84                 AssertionValidator::validateAssertion(assertion);
  85             }
  86         }
  87     }
  88
  89     throw ValidationException("Unable to satisfy assertion's SubjectConfirmation.");
  90 }