Parameterize config namespace for message plugins.

[shibboleth/cpp-opensaml.git] / saml / saml1 / binding / impl / SAML1POSTDecoder.cpp

diff --git a/saml/saml1/binding/impl/SAML1POSTDecoder.cpp b/saml/saml1/binding/impl/SAML1POSTDecoder.cpp
index bff2e55..b9651ab 100644 (file)
--- a/saml/saml1/binding/impl/SAML1POSTDecoder.cpp
+++ b/saml/saml1/binding/impl/SAML1POSTDecoder.cpp
@@ -1,5 +1,5 @@
 /*
- *  Copyright 2001-2006 Internet2
+ *  Copyright 2001-2007 Internet2
  * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,14 +22,15 @@
 
 #include "internal.h"
 #include "exceptions.h"
-#include "binding/HTTPRequest.h"
+#include "binding/MessageDecoder.h"
 #include "saml1/core/Assertions.h"
-#include "saml1/binding/SAML1POSTDecoder.h"
+#include "saml1/core/Protocols.h"
 #include "saml2/metadata/Metadata.h"
 #include "saml2/metadata/MetadataProvider.h"
 
 #include <log4cpp/Category.hh>
 #include <xercesc/util/Base64.hpp>
+#include <xmltooling/io/HTTPRequest.h>
 #include <xmltooling/util/NDC.h>
 #include <xmltooling/validation/ValidatorSuite.h>
 
@@ -43,18 +44,27 @@ using namespace std;
 
 namespace opensaml {
     namespace saml1p {              
-        MessageDecoder* SAML_DLLLOCAL SAML1POSTDecoderFactory(const DOMElement* const & e)
+        class SAML_DLLLOCAL SAML1POSTDecoder : public MessageDecoder
         {
-            return new SAML1POSTDecoder(e);
+        public:
+            SAML1POSTDecoder() {}
+            virtual ~SAML1POSTDecoder() {}
+            
+            xmltooling::XMLObject* decode(
+                std::string& relayState,
+                const GenericRequest& genericRequest,
+                SecurityPolicy& policy
+                ) const;
+        };                
+
+        MessageDecoder* SAML_DLLLOCAL SAML1POSTDecoderFactory(const pair<const DOMElement*,const XMLCh*>& p)
+        {
+            return new SAML1POSTDecoder();
         }
     };
 };
 
-SAML1POSTDecoder::SAML1POSTDecoder(const DOMElement* e) {}
-
-SAML1POSTDecoder::~SAML1POSTDecoder() {}
-
-Response* SAML1POSTDecoder::decode(
+XMLObject* SAML1POSTDecoder::decode(
     string& relayState,
     const GenericRequest& genericRequest,
     SecurityPolicy& policy
@@ -67,16 +77,14 @@ Response* SAML1POSTDecoder::decode(
 
     log.debug("validating input");
     const HTTPRequest* httpRequest=dynamic_cast<const HTTPRequest*>(&genericRequest);
-    if (!httpRequest) {
-        log.error("unable to cast request to HTTPRequest type");
-        return NULL;
-    }
+    if (!httpRequest)
+        throw BindingException("Unable to cast request object to HTTPRequest type.");
     if (strcmp(httpRequest->getMethod(),"POST"))
-        return NULL;
+        throw BindingException("Invalid HTTP method ($1).", params(1, httpRequest->getMethod()));
     const char* samlResponse = httpRequest->getParameter("SAMLResponse");
     const char* TARGET = httpRequest->getParameter("TARGET");
     if (!samlResponse || !TARGET)
-        return NULL;
+        throw BindingException("Request missing SAMLResponse or TARGET parameters.");
     relayState = TARGET;
 
     // Decode the base64 into SAML.
@@ -89,7 +97,7 @@ Response* SAML1POSTDecoder::decode(
     XMLString::release(&decoded);
     
     // Parse and bind the document into an XMLObject.
-    DOMDocument* doc = (m_validate ? XMLToolingConfig::getConfig().getValidatingParser()
+    DOMDocument* doc = (policy.getValidating() ? XMLToolingConfig::getConfig().getValidatingParser()
         : XMLToolingConfig::getConfig().getParser()).parse(is); 
     XercesJanitor<DOMDocument> janitor(doc);
     auto_ptr<XMLObject> xmlObject(XMLObjectBuilder::buildOneFromElement(doc->getDocumentElement(), true));
@@ -99,40 +107,23 @@ Response* SAML1POSTDecoder::decode(
     if (!response)
         throw BindingException("Decoded message was not a SAML 1.x Response.");
 
-    try {
-        if (!m_validate)
-            SchemaValidators.validate(xmlObject.get());
-        
-        // Run through the policy.
-        policy.evaluate(genericRequest, *response);
+    if (!policy.getValidating())
+        SchemaValidators.validate(xmlObject.get());
+
+    // Run through the policy.
+    policy.evaluate(*response, &genericRequest);
+    
+    // Check recipient URL.
+    auto_ptr_char recipient(response->getRecipient());
+    const char* recipient2 = httpRequest->getRequestURL();
+    if (!recipient.get() || !*(recipient.get())) {
+        log.error("response missing Recipient attribute");
+        throw BindingException("SAML response did not contain Recipient attribute identifying intended destination.");
     }
-    catch (XMLToolingException& ex) {
-        // This is just to maximize the likelihood of attaching a source to the message for support purposes.
-        if (policy.getIssuerMetadata())
-            annotateException(&ex,policy.getIssuerMetadata()); // throws it
-          
-        // Check for an Issuer.
-        const EntityDescriptor* provider=NULL;
-        const vector<Assertion*>& assertions=const_cast<const Response*>(response)->getAssertions();
-        if (!assertions.empty() || !policy.getMetadataProvider() ||
-                !(provider=policy.getMetadataProvider()->getEntityDescriptor(assertions.front()->getIssuer(), false))) {
-            // Just record it.
-            auto_ptr_char iname(assertions.front()->getIssuer());
-            if (iname.get())
-                ex.addProperty("entityID", iname.get());
-            throw;
-        }
-        if (policy.getRole()) {
-            pair<bool,int> minor = response->getMinorVersion();
-            const RoleDescriptor* roledesc=provider->getRoleDescriptor(
-                *(policy.getRole()),
-                (minor.first && minor.second==0) ? samlconstants::SAML10_PROTOCOL_ENUM : samlconstants::SAML11_PROTOCOL_ENUM
-                );
-            if (roledesc) annotateException(&ex,roledesc); // throws it
-        }
-        annotateException(&ex,provider);  // throws it
+    else if (!recipient2 || !*recipient2 || strcmp(recipient.get(),recipient2)) {
+        log.error("POST targeted at (%s), but delivered to (%s)", recipient.get(), recipient2 ? recipient2 : "none");
+        throw BindingException("SAML message delivered with POST to incorrect server URL.");
     }
-
-    xmlObject.release();
-    return response;
+    
+    return xmlObject.release();
 }