/**

 * Copyright (c) 2010 Sasken Communication Technologies Ltd.

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the "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:

 * Pritam Roy Biswas, Sasken Communication Technologies Ltd - Initial contribution

 *

 * Description:

 * This is the private implementation Class on Symbian OS for Credential Manager Client.

 *  Derives from CAtive to support asynchronous requests.

 *

 */

//  Include Files

#include <smfcredmgrcommon.h>

#include <smfcredmgrclientdatastruct.h>

#include <smfutils.h>

#include <securitydefs.h>

#include "smfcredmgrclientutil.h"

#include "smfcredmgrclient_p.h"

CSmfCredMgrClientSymbian::CSmfCredMgrClientSymbian(

		SmfCredMgrClient* aPublicImpl) :

	iPublicImpl(aPublicImpl), CActive(EPriorityStandard)

	{

	}

CSmfCredMgrClientSymbian* CSmfCredMgrClientSymbian::NewL(

		SmfCredMgrClient* aPublicImpl)

	{

	CSmfCredMgrClientSymbian* self = NewLC(aPublicImpl);

	CleanupStack::Pop(self);

	return (self);

	}

CSmfCredMgrClientSymbian* CSmfCredMgrClientSymbian::NewLC(

		SmfCredMgrClient* aPublicImpl)

	{

	CSmfCredMgrClientSymbian* self = new (ELeave) CSmfCredMgrClientSymbian(

			aPublicImpl);

	CleanupStack::PushL(self);

	self->ConstructL();

	return (self);

	}

void CSmfCredMgrClientSymbian::ConstructL()

	{

	User::LeaveIfError(iSession.connectToServer());

	}

CSmfCredMgrClientSymbian::~CSmfCredMgrClientSymbian()

	{

	//cancel pending request before close session

	Cancel();

	iSession.Close();

	}

void CSmfCredMgrClientSymbian::RunL()

	{

	}

void CSmfCredMgrClientSymbian::DoCancel()

	{

	}

TBool CSmfCredMgrClientSymbian::AuthDataSetL(QString RegToken,

		QDateTime Validity, SmfAuthParams& AuthTokenSet)

	{

	CSmfFetchAuthTokenSet* fetchAuthTokenSetParams =

			new (ELeave) CSmfFetchAuthTokenSet;

	CleanupStack::PushL(fetchAuthTokenSetParams);

	//fill the input params

	fetchAuthTokenSetParams->iRegistrationToken = qt_QString2HBufC(RegToken);

	fetchAuthTokenSetParams->iValidity = Validity.toTime_t();

	//create buffer to serialize data

	CBufFlat* buf = CBufFlat::NewL(KMaxBufSize);

	CleanupStack::PushL(buf);

	RBufWriteStream stream(*buf);

	CleanupClosePushL(stream);

	fetchAuthTokenSetParams->ExternalizeL(stream);

	stream.CommitL();

	TPtr8 bufPtr = buf->Ptr(0);

	TIpcArgs args;

	args.Set(0, &bufPtr);

	// to get the data from server, we create a space.

	HBufC8* retBuf = HBufC8::NewL(KMaxBufSize);

	CleanupStack::PushL(retBuf);

	TPtr8 outputptr = retBuf->Des();

	args.Set(1, &outputptr);

	iSession.RequestService(ESendAuthDataSet, args);

	//create buffer to read data sent by server

	RBuf8 dataBuf;

	CleanupClosePushL(dataBuf);

	dataBuf.Create(outputptr);

	fetchAuthTokenSetParams->InternalizeL(dataBuf);

	//return EFalse if count is 0

	if (fetchAuthTokenSetParams->iAuthTokenArray.Count() == 0)

		{

		return EFalse;

		}

	smfcredmgrclientutil::RArrayToSmfAuthParams(

			fetchAuthTokenSetParams->iAuthTokenArray, AuthTokenSet);

	CleanupStack::PopAndDestroy(fetchAuthTokenSetParams);

	return ETrue;

	}

QString CSmfCredMgrClientSymbian::storeAuthDataL(SmfAuthParams Set,

		QDateTime Validity, QList<QUrl> URLList, QStringList PluginList,

		QString AuthAppAID, bool Flag)

	{

	CSmfStoreAuthParams* authenticationProcessData =

			new (ELeave) CSmfStoreAuthParams;

	CleanupStack::PushL(authenticationProcessData);

	//create space for iRegistrationToken

	authenticationProcessData->iRegistrationToken = HBufC::NewL(

			KMaxRegistrationTokenLength);

	//fill the input params

	smfcredmgrclientutil::SmfAuthParamstoRArray(Set,

			authenticationProcessData->iAuthTokenArray);

	authenticationProcessData->pluginIDEnabled = Flag;

	//set iValidity

	authenticationProcessData->iValidity = Validity.toTime_t();

	//set authappid

	authenticationProcessData->iAuthAppID = qt_QString2HBufC(AuthAppAID);

	//set the lists

	authenticationProcessData->iURLList

			= smfcredmgrclientutil::convertToSymbianURLList(URLList);

	authenticationProcessData->iPluginIDList

			= smfcredmgrclientutil::convertToSymbianPluginList(

					PluginList);

	//create buffer to serialize data

	CBufFlat* buf = CBufFlat::NewL(KMaxBufSize);

	CleanupStack::PushL(buf);

	RBufWriteStream stream(*buf);

	CleanupClosePushL(stream);

	authenticationProcessData->ExternalizeL(stream);

	stream.CommitL();

	TPtr8 bufPtr = buf->Ptr(0);

	TIpcArgs args;

	args.Set(0, &bufPtr);

	iSession.RequestService(EStoreAuthData, args);

	//convert and return

	CleanupStack::PopAndDestroy(&stream);

	CleanupStack::PopAndDestroy(buf);

	CleanupStack::Pop();

	return regString;

	}

TBool CSmfCredMgrClientSymbian::isPluginAuthenticatedL(QString PluginID)

	{

	CBufFlat* buf = CBufFlat::NewL(KMinBufSize);

	CleanupStack::PushL(buf);

	RBufWriteStream stream(*buf);

	CleanupClosePushL(stream);

	TPtr idPtr(qt_QString2HBufC(PluginID)->Des());

	SmfUtils::ExternalizeDesL(idPtr, stream);

	stream.CommitL();

	// to get the data from server, we create a space.

	HBufC8* retBuf = HBufC8::NewL(32);

	CleanupStack::PushL(retBuf);

	TPtr8 bufPtr = buf->Ptr(0);

	TPtr8 flag(retBuf->Des());

	TIpcArgs args;

	args.Set(0, &bufPtr);

	args.Set(1, &flag);

	iSession.RequestService(ECheckPluginAuthentication, args);

	TLex8 iLex = TLex8(flag);

	TInt value = 0;

	iLex.Val(value);

	CleanupStack::PopAndDestroy(retBuf);

	CleanupStack::PopAndDestroy(&stream);

	CleanupStack::PopAndDestroy(buf);

	if (value)

		{

		RDebug::Printf("flag returned is ETrue");

		return ETrue;

		}

	else

		{

		RDebug::Printf("flag returned is EFalse");

		return EFalse;

		}

	}

void CSmfCredMgrClientSymbian::authenticatedPluginListL(

		QString RegistrationToken, QStringList& List)

	{

	CSmfPluginIDListParams* fetchPluginListParams =

			new (ELeave) CSmfPluginIDListParams;

	CleanupStack::PushL(fetchPluginListParams);

	//fill input params

	fetchPluginListParams->iRegistrationToken = qt_QString2HBufC(

			RegistrationToken);

	//create buffer to serialize data

	CBufFlat* buf = CBufFlat::NewL(KMinBufSize);

	CleanupStack::PushL(buf);

	RBufWriteStream stream(*buf);

	CleanupClosePushL(stream);

	fetchPluginListParams->ExternalizeL(stream);

	stream.CommitL();

	TPtr8 bufPtr1 = buf->Ptr(0);

	TIpcArgs args;

	args.Set(0, &bufPtr1);

	// to get the data from server, we create a space.

	HBufC8* retBuf = HBufC8::NewL(KMaxBufSize);

	CleanupStack::PushL(retBuf);

	TPtr8 outputptr = retBuf->Des();

	args.Set(1, &outputptr);

	iSession.RequestService(ESendPluginIDList, args);

	//create buffer to read data received

	RBuf8 dataBuf;

	CleanupClosePushL(dataBuf);

	dataBuf.Create(outputptr);

	fetchPluginListParams->InternalizeL(dataBuf);

	smfcredmgrclientutil::convertToQStringList(

			fetchPluginListParams->iPluginList, List);

	CleanupStack::PopAndDestroy(&dataBuf);

	CleanupStack::PopAndDestroy(retBuf);

	CleanupStack::PopAndDestroy(&stream);

	CleanupStack::PopAndDestroy(buf);

	CleanupStack::PopAndDestroy(fetchPluginListParams);

	}

void CSmfCredMgrClientSymbian::URLListL(QString PluginID, QList<QUrl>& List)

	{

	CSmfURLListParams* fetchURLListParams = new (ELeave) CSmfURLListParams;

	CleanupStack::PushL(fetchURLListParams);

	fetchURLListParams->iPluginID = qt_QString2HBufC(PluginID);

	//create buffer to serialize data

	CBufFlat* buf = CBufFlat::NewL(KMinBufSize);

	CleanupStack::PushL(buf);

	RBufWriteStream stream(*buf);

	CleanupClosePushL(stream);

	fetchURLListParams->ExternalizeL(stream);

	stream.CommitL();

	TPtr8 bufPtr = buf->Ptr(0);

	TIpcArgs args;

	args.Set(0, &bufPtr);

	// to get the data from server, we create a space.

	HBufC8* retBuf = HBufC8::NewL(KMaxBufSize);

	CleanupStack::PushL(retBuf);

	TPtr8 outputptr = retBuf->Des();

	args.Set(1, &outputptr);

	iSession.RequestService(ESendURLList, args);

	//create buffer to read data received

	RBuf8 dataBuf;

	CleanupClosePushL(dataBuf);

	dataBuf.Create(outputptr);

	fetchURLListParams->InternalizeL(dataBuf);

	smfcredmgrclientutil::convertToQUrlList(

			fetchURLListParams->iURLList, List);

	CleanupStack::PopAndDestroy(&dataBuf);

	CleanupStack::PopAndDestroy(retBuf);

	CleanupStack::PopAndDestroy(&stream);

	CleanupStack::PopAndDestroy(buf);

	CleanupStack::Pop(fetchURLListParams);

	}

QString CSmfCredMgrClientSymbian::generateNONCE(const qint64 Length)

	{

	srand(time(0));

	QDateTime UniqueNumber = QDateTime::currentDateTime();

	//read upto milliseconds

	QString RetString(UniqueNumber.toString("hh:mm:ss.zzz"));

	QString Letters(

			"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789");

	//append a randomly generated string to RetString

	for (int i = RetString.count(); i < Length; i++)

		{

		RetString.insert((i), Letters.at(rand() % Letters.size()));

		}

	return RetString;

	}

void CSmfCredMgrClientSymbian::changePluginIDListL(const QString NewPluginID,

		const bool Flag, const QString OldPluginID)

	{

	CSmfPluginIDUpdate* changePluginListParams =

			new (ELeave) CSmfPluginIDUpdate;

	CleanupStack::PushL(changePluginListParams);

	//set the input params

	changePluginListParams->iNewPluginID = qt_QString2HBufC(NewPluginID);

	changePluginListParams->iOldPluginID = qt_QString2HBufC(OldPluginID);

	changePluginListParams->pluginIDEnabled = Flag;

	//create buffer to serialize data

	CBufFlat* buf = CBufFlat::NewL(KMaxBufSize);

	CleanupStack::PushL(buf);

	RBufWriteStream stream(*buf);

	CleanupClosePushL(stream);

	changePluginListParams->ExternalizeL(stream);

	stream.CommitL();

	TPtr8 bufPtr = buf->Ptr(0);

	TIpcArgs args;

	args.Set(0, &bufPtr);

	iSession.RequestService(EUpdatePluginIDList, args);

	CleanupStack::PopAndDestroy(&stream);

	CleanupStack::PopAndDestroy(buf);

	CleanupStack::PopAndDestroy(changePluginListParams);

	}

SMFCredMgrErrorCode CSmfCredMgrClientSymbian::signMessageL(QString Message,

		QString Key, QString& Signature, SmfSignatureMethod AlgorithmUsed)

	{

	SMFCredMgrErrorCode signError = SmfErrNone;

	TPtr msgPtr((qt_QString2HBufC(Message))->Des());

	TPtr keyPtr((qt_QString2HBufC(Key))->Des());

	CSmfSignParameters* signMsgParams = CSmfSignParameters::NewL(

			msgPtr.Collapse(), keyPtr.Collapse());

	CleanupStack::PushL(signMsgParams);

	CBufFlat* buf = CBufFlat::NewL(KMinBufSize);

	CleanupStack::PushL(buf);

	RBufWriteStream stream(*buf);

	CleanupClosePushL(stream);

	signMsgParams->ExternalizeL(stream);

	stream.CommitL();

	TPtr8 bufPtr = buf->Ptr(0);

	TIpcArgs args;

	args.Set(0, &bufPtr);

	HBufC8* msgBuf = HBufC8::NewL(KMaxSignedMsgLength);

	TPtr8 msgBufPtr(msgBuf->Des());

	CleanupStack::PushL(msgBuf);

	args.Set(1, &msgBufPtr);

	switch (AlgorithmUsed)

		{

		case ESMFRSAProtocol:

			{

			iSession.RequestService(ESmfRSASignMessage, args);

			}

			break;

		case ESMFHMACProtocol:

			{

			iSession.RequestService(ESmfHMACSHA1SignMessage, args);

			}

			break;

		default:

			{

			RDebug::Printf("Unsupported Algo:");

			return SmfErrBadParameter;

			}

		}

	TBuf<KMaxSignedMsgLength> signedMsg;

	signedMsg.Copy(msgBufPtr);

	Signature = qt_TDesC2QString(signedMsg);

	CleanupStack::Pop(msgBuf);

	CleanupStack::PopAndDestroy(&stream);

	CleanupStack::PopAndDestroy(buf);

	CleanupStack::PopAndDestroy(signMsgParams);

	return signError;

	}

QString CSmfCredMgrClientSymbian::storeRSAKeysL(const QString KeyLabel,

		const QString keydata, const QDateTime Validity)

	{

	RDebug::Printf("Sending store RSA key message to server");

	TPtrC labelPtr(qt_QString2TPtrC(KeyLabel));

	TPtr dataPtr((qt_QString2HBufC(keydata)->Des()));

	QDateTime CurrentTime = QDateTime::currentDateTime();

	TTimeIntervalSeconds duration(CurrentTime.secsTo(Validity));

	TTime startDate;

	startDate.UniversalTime();

	TTime endDate(startDate);

	endDate += duration;

	CSmfRsaKeyParameters* storeRSAKeysparams = CSmfRsaKeyParameters::NewL(

			labelPtr, startDate, endDate, (dataPtr.Collapse()));

	CleanupStack::PushL(storeRSAKeysparams);

	CBufFlat* buf = CBufFlat::NewL(KMinBufSize);

	CleanupStack::PushL(buf);

	RBufWriteStream stream(*buf);

	CleanupClosePushL(stream);

	storeRSAKeysparams->ExternalizeL(stream);

	stream.CommitL();

	TPtr8 bufPtr = buf->Ptr(0);

	TIpcArgs args;

	args.Set(0, &bufPtr);

	CleanupStack::PopAndDestroy(&stream);

	HBufC8* retBuf = HBufC8::NewLC(KSHA1HashLengthBytes);

	TPtr8 retBufPtr(retBuf->Des());

	args.Set(1, &retBufPtr);

	iSession.RequestService(ESmfStoreRSAKey, args);

	RDebug::Printf("SMF: Message completed");

	TBuf<KSHA1HashLengthBytes> key;

	key.Copy(retBufPtr);

	QString RetString(qt_TDesC2QString(key));

	CleanupStack::Pop(retBuf);

	CleanupStack::PopAndDestroy(buf);