--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/pkiutilities/ocsp/src/requestencoder.cpp Tue Jan 26 15:20:08 2010 +0200
@@ -0,0 +1,220 @@
+// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// Implementation for OCSP request encoder object
+//
+//
+
+#include "requestencoder.h"
+#include "certid.h"
+#include "oids.h"
+#include "ocsp.h"
+#include "panic.h"
+#include <asn1enc.h>
+
+COCSPRequestEncoder* COCSPRequestEncoder::NewL(const COCSPRequest& aRequest)
+ {
+ COCSPRequestEncoder* self = new (ELeave) COCSPRequestEncoder();
+ CleanupStack::PushL(self);
+ self->ConstructL(aRequest);
+ CleanupStack::Pop(self);
+ return self;
+ }
+
+
+COCSPRequestEncoder::COCSPRequestEncoder()
+ {
+ }
+
+
+COCSPRequestEncoder::~COCSPRequestEncoder()
+ {
+ delete iEncoding;
+ }
+
+
+const TDesC8& COCSPRequestEncoder::Encoding() const
+ {
+ return *iEncoding;
+ }
+
+
+void COCSPRequestEncoder::ConstructL(const COCSPRequest& aRequest)
+ {
+ // Get encoder
+ CASN1EncBase* encoder = MakeOCSPRequestEncLC(aRequest);
+
+ // Make buffer
+ TUint length = encoder->LengthDER();
+ iEncoding = HBufC8::NewMaxL(length);
+ TPtr8 buf = iEncoding->Des();
+
+ // Write data
+ TUint position = 0;
+ encoder->WriteDERL(buf, position);
+
+ CleanupStack::PopAndDestroy(encoder);
+ }
+
+
+// Static helper method - encapsulates a commonly-dupliciated peice of code
+void COCSPRequestEncoder::AddAndPopChildL(CASN1EncContainer& aParent, CASN1EncBase* aChild)
+ {
+ if (aChild)
+ {
+ aParent.AddChildL(aChild);
+ CleanupStack::Pop(aChild); // Now owned by aParent
+ }
+ }
+
+
+CASN1EncBase* COCSPRequestEncoder::MakeOCSPRequestEncLC(const COCSPRequest& aRequest)
+ {
+ CASN1EncSequence* ocspRequest = CASN1EncSequence::NewLC();
+
+ CASN1EncBase* tbsRequest = MakeTBSRequestEncLC(aRequest);
+ AddAndPopChildL(*ocspRequest, tbsRequest);
+
+ return ocspRequest;
+ }
+
+
+CASN1EncBase* COCSPRequestEncoder::MakeTBSRequestEncLC(const COCSPRequest& aRequest)
+ {
+ CASN1EncSequence* tbsRequest = CASN1EncSequence::NewLC();
+
+ // version - int 0, explicitly tagged as 0
+ // Excluded, since this is the default value, and we're using DER
+
+ // Skip GeneralName - we don't support that, and it is optional
+
+ // Cert requestList
+ CASN1EncBase* requestList = MakeRequestListEncLC(aRequest);
+ AddAndPopChildL(*tbsRequest, requestList);
+
+ // Global request extensions - optional, explicitly tagged [2]
+ CASN1EncBase* extensions = MakeRequestExtensionsEncLC(aRequest);
+ if (extensions)
+ {
+ CleanupStack::Pop(extensions); // Will be owned by explicit tag
+ CASN1EncExplicitTag* taggedExtensions = CASN1EncExplicitTag::NewLC(extensions, 2);
+ AddAndPopChildL(*tbsRequest, taggedExtensions);
+ }
+
+ return tbsRequest;
+ }
+
+
+CASN1EncBase* COCSPRequestEncoder::MakeRequestListEncLC(const COCSPRequest& aRequest)
+ {
+ CASN1EncSequence* requestList = CASN1EncSequence::NewLC();
+
+ // Request objects - one for each cert
+ TUint numCerts = aRequest.CertCount();
+ ASSERT(numCerts > 0);
+
+ for (TUint index = 0; index < numCerts; ++index)
+ {
+ const COCSPCertID& certId = aRequest.CertInfo(index).CertID();
+ CASN1EncBase* certEnc = MakeCertRequestEncLC(certId);
+ AddAndPopChildL(*requestList, certEnc);
+ }
+
+ return requestList;
+ }
+
+
+// Make encoder for the request object for a particular cert
+CASN1EncBase* COCSPRequestEncoder::MakeCertRequestEncLC(const COCSPCertID& aCertId)
+ {
+ CASN1EncSequence* request = CASN1EncSequence::NewLC();
+
+ // CertID
+ CASN1EncBase* certIdEnc = aCertId.EncoderLC();
+ AddAndPopChildL(*request, certIdEnc);
+
+ return request;
+ }
+
+
+CASN1EncBase* COCSPRequestEncoder::MakeRequestExtensionsEncLC(const COCSPRequest& aRequest)
+ {
+ CASN1EncSequence* extns = CASN1EncSequence::NewLC();
+
+ // Nonce extension (if present)
+ CASN1EncBase* nonceExtn = MakeNonceExtnEncLC(aRequest);
+ AddAndPopChildL(*extns, nonceExtn);
+
+ // Response type extentions
+ CASN1EncBase* responseTypeExtn = MakeResponseTypeExtnEncLC();
+ AddAndPopChildL(*extns, responseTypeExtn);
+
+ return extns;
+ }
+
+
+// Response type. Is a sequence, with OID, default bool, and octet string
+// for contents. In this case the octet string contains a sequence
+// of OIDs specifying the acceptable response types.
+CASN1EncBase* COCSPRequestEncoder::MakeResponseTypeExtnEncLC()
+ {
+ CASN1EncSequence* extn = CASN1EncSequence::NewLC();
+
+ // OID
+ CASN1EncObjectIdentifier* oid = CASN1EncObjectIdentifier::NewLC(KOCSPOidResponse);
+ AddAndPopChildL(*extn, oid);
+
+ // Skip Critical flag since we want default value FALSE and this is DER
+
+ // Acceptable responses - takes a bit of work, so bear with it...
+
+ // First, make sequence containing the OID for our response type
+ CASN1EncSequence* responses = CASN1EncSequence::NewLC();
+ CASN1EncObjectIdentifier* basic = CASN1EncObjectIdentifier::NewLC(KOCSPOidBasic);
+ AddAndPopChildL(*responses, basic);
+
+ // Second, encode this into a descriptor
+ TBuf8<KOCSPMaxOidEncodingLength> buf(responses->LengthDER());
+ TUint pos = 0;
+ responses->WriteDERL(buf, pos);
+ CleanupStack::PopAndDestroy(responses); // Finished with that now
+
+ // Third, make Octet string encoder from this data + add to extn
+ CASN1EncOctetString* value = CASN1EncOctetString::NewLC(buf);
+ AddAndPopChildL(*extn, value);
+
+ return extn;
+ }
+
+
+CASN1EncBase* COCSPRequestEncoder::MakeNonceExtnEncLC(const COCSPRequest& aRequest)
+ {
+ CASN1EncSequence* extn = NULL;
+
+ if (aRequest.Nonce())
+ {
+ extn = CASN1EncSequence::NewLC();
+
+ // OID
+ CASN1EncObjectIdentifier* oid = CASN1EncObjectIdentifier::NewLC(KOCSPOidNonce);
+ AddAndPopChildL(*extn, oid);
+
+ // Skip Critical flag since we want default value FALSE and this is DER
+
+ // Place nonce into extension
+ CASN1EncOctetString* value = CASN1EncOctetString::NewLC(*aRequest.Nonce());
+ AddAndPopChildL(*extn, value);
+ }
+
+ return extn;
+ }