/*

* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

* Example CTestStep derived implementation

*

*/

/**

 @file

 @internalTechnology

*/

#include "hash_basic_data_step.h"

#include <cryptospi/cryptohashapi.h>

#include <cryptospi/plugincharacteristics.h>

using namespace CryptoSpi;

class CHashParam:public CBase

	{

public:

	~CHashParam();

	TUid iAlgorithmUid;

	CHash* iHash;

	};

CHashParam::~CHashParam()

	{

	delete iHash;

	}

static TInt CreatorThreadEntryPt(TAny* aParameters)

	{

	CTrapCleanup* cleanup = CTrapCleanup::New();

	if (!cleanup)

		User::Exit(KErrNoMemory);

	ASSERT(aParameters);

	CHashParam* params=static_cast<CHashParam*>(aParameters);

	TRAPD(result,CHashFactory::CreateHashL(params->iHash,

											params->iAlgorithmUid,

											NULL));  					

	delete cleanup;

	return result;

	}

CHashBasicDataStep::~CHashBasicDataStep()

	{

	}

CHashBasicDataStep::CHashBasicDataStep()

	{

	SetTestStepName(KHashBasicDataStep);

	}

TVerdict CHashBasicDataStep::doTestStepPreambleL()

	{

	return EPass;

	}

TVerdict CHashBasicDataStep::doTestStepL()

	{

	//Assume faliure, unless all is successful

	SetTestStepResult(EFail);

	INFO_PRINTF1(_L("*** Hash - Basic Data ***"));

	INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells());

	TVariantPtrC algorithmUid;

	TPtrC sourcePath;

	TPtrC expectedHash;

	//Extract the Test Case ID parameter from the specified INI file

	if(!GetStringFromConfig(ConfigSection(),KConfigAlgorithmUid,algorithmUid) ||

		!GetStringFromConfig(ConfigSection(),KConfigSourcePath,sourcePath) ||

		!GetStringFromConfig(ConfigSection(),KConfigExHashHmacValue,expectedHash))

		{

		ERR_PRINTF1(_L("** Error: Failed to Load Configuration Parameters **"));

		User::Leave(KErrNotFound);

		}

	TPtrC threadName;

	CHash* hashImpl=NULL;

	TInt err=KErrNone;

	CHashParam* params = new (ELeave) CHashParam();

	CleanupStack::PushL(params);

	if (GetStringFromConfig(ConfigSection(),KConfigThreadName,threadName))

		{

		RThread creatorThread;

		CleanupClosePushL(creatorThread);

		params->iAlgorithmUid=algorithmUid;

		params->iHash=NULL;

		User::LeaveIfError(creatorThread.Create(threadName, CreatorThreadEntryPt, KDefaultStackSize, NULL, (TAny*)params));

		TRequestStatus status=KRequestPending;

		creatorThread.Logon(status);

		creatorThread.Resume();

		User::WaitForRequest(status);

		hashImpl=params->iHash;

		err=status.Int();

		}

	else

		{

		//Retrieve a Hash Factory Object		

		TRAP(err,CHashFactory::CreateHashL(hashImpl,

											algorithmUid,

											NULL));

		}

	if(err == KErrNone)

		{

		RFs fsSession;

		//Create a connection to the file server	

		User::LeaveIfError(fsSession.Connect());

		CleanupClosePushL(fsSession);

		RFile sourceFile;

		//Open the specified source file

		User::LeaveIfError(sourceFile.Open(fsSession,sourcePath, EFileRead));

		CleanupClosePushL(sourceFile);

		TInt sourceLength = 0;

		User::LeaveIfError(sourceFile.Size(sourceLength));

		//Create a heap based descriptor to store the data

		HBufC8* sourceData = HBufC8::NewL(sourceLength);						

		CleanupStack::PushL(sourceData);

		TPtr8 sourcePtr = sourceData->Des();

		sourceFile.Read(sourcePtr);

		if(sourcePtr.Length() != sourceLength)

			{

			ERR_PRINTF1(_L("*** Error: Reading Source File ***"));

			SetTestStepResult(EFail);

			}

		else

			{

			//Create a NULL TCharacteristics pointer

			const TCharacteristics* charsPtr(NULL);

			//Retrieve the characteristics for the hash implementation object

			TRAP_LOG(err, hashImpl->GetCharacteristicsL(charsPtr));

			//Static cast the characteristics to type THashCharacteristics

			const THashCharacteristics* hashCharsPtr = static_cast<const THashCharacteristics*>(charsPtr);

			//The hash output size is returned in Bits, divide by 8 to get the Byte size

			TInt hashSize = hashCharsPtr->iOutputSize/8;

			//Retrieve the final 8bit hash value and convert to 16bit								

			HBufC* hashData = HBufC::NewLC(hashSize);

			TPtr hashPtr = hashData->Des();

			// This is just a simple performance measurement on generating 

			// the hash

			TTime startTime;

			startTime.UniversalTime();

			//Copy the hashed content into the heap based descriptor

			hashPtr.Copy(hashImpl->Hash(*sourceData));

			TTime endTime;

			endTime.UniversalTime();

			TTimeIntervalMicroSeconds time = endTime.MicroSecondsFrom(startTime);

			//Take the 16bit descriptor and convert the string to hexadecimal

			TVariantPtrC convertHash;

			convertHash.Set(hashPtr);

			HBufC* hashResult = convertHash.HexStringLC();	

			INFO_PRINTF2(_L("*** Hashed Data: %S ***"),&*hashResult);

			INFO_PRINTF2(_L("*** Expected Hash: %S ***"),&expectedHash);

			//If the returned hash value matches the expected hash, Pass the test				

			if(*hashResult == expectedHash)

				{

			    INFO_PRINTF2(_L("*** Hash - Basic Data generated after setup in %d micro sec.: PASS ***"), time.Int64());

				SetTestStepResult(EPass);	

				}

			else

				{

				ERR_PRINTF2(_L("*** FAIL: Hashed and Expected Value Mismatch  ***"), err);

				SetTestStepResult(EFail);

				}

			CleanupStack::PopAndDestroy(3, sourceData); // hashResult, hashData, sourceData

			}

		CleanupStack::PopAndDestroy(2, &fsSession);	// &fsSession, sourceFile

		if (threadName.Ptr() != NULL)

			{

			CleanupStack::PopAndDestroy(); // &creatorThread

			}

		}

	else

		{

		ERR_PRINTF2(_L("*** FAIL: Failed to Create Hash Object - %d ***"), err);

		SetTestStepResult(EFail);	

		}

	CleanupStack::PopAndDestroy(); //params

	INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells());	

	return TestStepResult();

	}

TVerdict CHashBasicDataStep::doTestStepPostambleL()

	{

	return TestStepResult();

	}