2 * Copyright 2001-2007 Internet2
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
20 * SAML 2.0 ECP profile message decoder
24 #include "exceptions.h"
25 #include "saml2/binding/SAML2MessageDecoder.h"
26 #include "saml2/core/Protocols.h"
28 #include <xmltooling/logging.h>
29 #include <xmltooling/soap/SOAP.h>
30 #include <xmltooling/util/NDC.h>
31 #include <xmltooling/validation/ValidatorSuite.h>
33 using namespace opensaml::saml2p;
34 using namespace opensaml;
35 using namespace soap11;
36 using namespace xmltooling::logging;
37 using namespace xmltooling;
42 class SAML_DLLLOCAL SAML2ECPDecoder : public SAML2MessageDecoder
46 virtual ~SAML2ECPDecoder() {}
48 xmltooling::XMLObject* decode(
49 std::string& relayState,
50 const GenericRequest& genericRequest,
51 SecurityPolicy& policy
55 MessageDecoder* SAML_DLLLOCAL SAML2ECPDecoderFactory(const pair<const DOMElement*,const XMLCh*>& p)
57 return new SAML2ECPDecoder();
62 XMLObject* SAML2ECPDecoder::decode(
64 const GenericRequest& genericRequest,
65 SecurityPolicy& policy
69 xmltooling::NDC ndc("decode");
71 Category& log = Category::getInstance(SAML_LOGCAT".MessageDecoder.SAML2ECP");
73 log.debug("validating input");
74 string s = genericRequest.getContentType();
75 if (s.find("application/vnd.paos+xml") == string::npos) {
76 log.warn("ignoring incorrect content type (%s)", s.c_str() ? s.c_str() : "none");
77 throw BindingException("Invalid content type for PAOS message.");
80 const char* data = genericRequest.getRequestBody();
82 throw BindingException("PAOS message had an empty request body.");
83 istringstream is(data);
85 // Parse and bind the document into an XMLObject.
86 DOMDocument* doc = (policy.getValidating() ? XMLToolingConfig::getConfig().getValidatingParser()
87 : XMLToolingConfig::getConfig().getParser()).parse(is);
88 XercesJanitor<DOMDocument> janitor(doc);
89 auto_ptr<XMLObject> xmlObject(XMLObjectBuilder::buildOneFromElement(doc->getDocumentElement(), true));
92 Envelope* env = dynamic_cast<Envelope*>(xmlObject.get());
94 throw BindingException("Decoded message was not a SOAP 1.1 Envelope.");
96 if (!policy.getValidating())
97 SchemaValidators.validate(env);
99 Body* body = env->getBody();
100 if (body && body->hasChildren()) {
101 Response* response = dynamic_cast<Response*>(body->getUnknownXMLObjects().front());
103 // Run through the policy at two layers.
104 extractMessageDetails(*env, genericRequest, samlconstants::SAML20P_NS, policy);
105 policy.evaluate(*env, &genericRequest);
107 extractMessageDetails(*response, genericRequest, samlconstants::SAML20P_NS, policy);
108 policy.evaluate(*response, &genericRequest);
110 // Check for RelayState header.
111 if (env->getHeader()) {
112 const vector<XMLObject*>& blocks = const_cast<const Header*>(env->getHeader())->getUnknownXMLObjects();
113 for (vector<XMLObject*>::const_iterator h = blocks.begin(); h != blocks.end(); ++h) {
114 static const XMLCh RelayState[] = UNICODE_LITERAL_10(R,e,l,a,y,S,t,a,t,e);
115 if (XMLString::equals((*h)->getElementQName().getLocalPart(), RelayState) &&
116 XMLString::equals((*h)->getElementQName().getNamespaceURI(), samlconstants::SAML20ECP_NS)) {
117 const ElementProxy* ep = dynamic_cast<const ElementProxy*>(*h);
119 auto_ptr_char rs(ep->getTextContent());
121 relayState = rs.get();
130 body->detach(); // frees Envelope
131 response->detach(); // frees Body
136 throw BindingException("SOAP Envelope did not contain a SAML Response.");