Apply manual validators even when schema was used.

[shibboleth/cpp-opensaml.git] / saml / saml2 / binding / impl / SAML2POSTDecoder.cpp

diff --git a/saml/saml2/binding/impl/SAML2POSTDecoder.cpp b/saml/saml2/binding/impl/SAML2POSTDecoder.cpp
index bec0d43..99a5f3c 100644 (file)
--- a/saml/saml2/binding/impl/SAML2POSTDecoder.cpp
+++ b/saml/saml2/binding/impl/SAML2POSTDecoder.cpp
@@ -1,5 +1,5 @@
 /*
- *  Copyright 2001-2007 Internet2
+ *  Copyright 2001-2009 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 +22,16 @@
 
 #include "internal.h"
 #include "exceptions.h"
-#include "binding/HTTPRequest.h"
-#include "binding/MessageDecoder.h"
+#include "saml2/binding/SAML2MessageDecoder.h"
 #include "saml2/core/Protocols.h"
 #include "saml2/metadata/Metadata.h"
 #include "saml2/metadata/MetadataProvider.h"
 
-#include <log4cpp/Category.hh>
+#include <xercesc/framework/MemBufInputSource.hpp>
+#include <xercesc/framework/Wrapper4InputSource.hpp>
 #include <xercesc/util/Base64.hpp>
+#include <xmltooling/logging.h>
+#include <xmltooling/io/HTTPRequest.h>
 #include <xmltooling/util/NDC.h>
 #include <xmltooling/validation/ValidatorSuite.h>
 
@@ -37,16 +39,16 @@ using namespace opensaml::saml2md;
 using namespace opensaml::saml2p;
 using namespace opensaml::saml2;
 using namespace opensaml;
+using namespace xmltooling::logging;
 using namespace xmltooling;
-using namespace log4cpp;
 using namespace std;
 
 namespace opensaml {
     namespace saml2p {              
-        class SAML_DLLLOCAL SAML2POSTDecoder : public MessageDecoder
+        class SAML_DLLLOCAL SAML2POSTDecoder : public SAML2MessageDecoder
         {
         public:
-            SAML2POSTDecoder(const DOMElement* e) {}
+            SAML2POSTDecoder() {}
             virtual ~SAML2POSTDecoder() {}
             
             xmltooling::XMLObject* decode(
@@ -56,9 +58,9 @@ namespace opensaml {
                 ) const;
         };                
 
-        MessageDecoder* SAML_DLLLOCAL SAML2POSTDecoderFactory(const DOMElement* const & e)
+        MessageDecoder* SAML_DLLLOCAL SAML2POSTDecoderFactory(const pair<const DOMElement*,const XMLCh*>& p)
         {
-            return new SAML2POSTDecoder(e);
+            return new SAML2POSTDecoder();
         }
     };
 };
@@ -76,17 +78,15 @@ XMLObject* SAML2POSTDecoder::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* msg = httpRequest->getParameter("SAMLResponse");
     if (!msg)
         msg = httpRequest->getParameter("SAMLRequest");
     if (!msg)
-        return NULL;
+        throw BindingException("Request missing SAMLRequest or SAMLResponse form parameter.");
     const char* state = httpRequest->getParameter("RelayState");
     if (state)
         relayState = state;
@@ -94,17 +94,17 @@ XMLObject* SAML2POSTDecoder::decode(
         relayState.erase();
 
     // Decode the base64 into SAML.
-    unsigned int x;
+    xsecsize_t x;
     XMLByte* decoded=Base64::decode(reinterpret_cast<const XMLByte*>(msg),&x);
     if (!decoded)
         throw BindingException("Unable to decode base64 in POST binding message.");
-    log.debug("decoded SAML message:\n%s", decoded);
-    istringstream is(reinterpret_cast<char*>(decoded));
-    XMLString::release(&decoded);
+    log.debugStream() << "decoded SAML message:\n" << decoded << logging::eol;
     
     // Parse and bind the document into an XMLObject.
+    MemBufInputSource src(decoded, x, "SAMLMessage", true);
+    Wrapper4InputSource dsrc(&src, false);
     DOMDocument* doc = (policy.getValidating() ? XMLToolingConfig::getConfig().getValidatingParser()
-        : XMLToolingConfig::getConfig().getParser()).parse(is); 
+        : XMLToolingConfig::getConfig().getParser()).parse(dsrc); 
     XercesJanitor<DOMDocument> janitor(doc);
     auto_ptr<XMLObject> xmlObject(XMLObjectBuilder::buildOneFromElement(doc->getDocumentElement(), true));
     janitor.release();
@@ -122,21 +122,22 @@ XMLObject* SAML2POSTDecoder::decode(
         root = static_cast<saml2::RootObject*>(request);
     }
     
-    if (!policy.getValidating())
-        SchemaValidators.validate(xmlObject.get());
+    SchemaValidators.validate(root);
 
     // Run through the policy.
+    extractMessageDetails(*root, genericRequest, samlconstants::SAML20P_NS, policy);
     policy.evaluate(*root, &genericRequest);
     
     // Check destination URL.
     auto_ptr_char dest(request ? request->getDestination() : response->getDestination());
     const char* dest2 = httpRequest->getRequestURL();
-    if ((root->getSignature() || httpRequest->getParameter("Signature")) && !dest.get() || !*(dest.get())) {
+    const char* delim = strchr(dest2, '?');
+    if ((root->getSignature() || httpRequest->getParameter("Signature")) && (!dest.get() || !*(dest.get()))) {
         log.error("signed SAML message missing Destination attribute");
         throw BindingException("Signed SAML message missing Destination attribute identifying intended destination.");
     }
-    else if (dest.get() && (!dest2 || !*dest2 || strcmp(dest.get(),dest2))) {
-        log.error("POST targeted at (%s), but delivered to (%s)", dest.get(), dest2 ? dest2 : "none");
+    else if (dest.get() && *dest.get() && ((delim && strncmp(dest.get(), dest2, delim - dest2)) || (!delim && strcmp(dest.get(),dest2)))) {
+        log.error("POST targeted at (%s), but delivered to (%s)", dest.get(), dest2);
         throw BindingException("SAML message delivered with POST to incorrect server URL.");
     }