// Copyright (c) 2006-2009 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:

//

#include <bautils.h>

#include <f32file.h>

#include <mtp/tmtptyperequest.h>

#include <mtp/mmtpdataproviderframework.h>

#include <mtp/mtpprotocolconstants.h>

#include <mtp/cmtptypestring.h>

#include <mtp/mmtpobjectmgr.h>

#include "cmtpsetobjectpropvalue.h"

#include "mtpdpconst.h"

#include "mtpdppanic.h"

#include "cmtpdataprovidercontroller.h"

#include "mtpframeworkconst.h"

#include "rmtpdpsingletons.h"

#include "rmtputility.h"

#include "cmtpstoragemgr.h"

/**

Verification data for the SetObjectPropValue request

*/

const TMTPRequestElementInfo KMTPSetObjectPropValuePolicy[] = 

    {

    	{TMTPTypeRequest::ERequestParameter1, EMTPElementTypeObjectHandle, EMTPElementAttrWrite, 0, 0, 0},   	

     };

/**

Two-phase construction method

@param aPlugin	The data provider plugin

@param aFramework	The data provider framework

@param aConnection	The connection from which the request comes

@return a pointer to the created request processor object

*/ 

EXPORT_C MMTPRequestProcessor* CMTPSetObjectPropValue::NewL(

											MMTPDataProviderFramework& aFramework,

											MMTPConnection& aConnection)

	{

	CMTPSetObjectPropValue* self = new (ELeave) CMTPSetObjectPropValue(aFramework, aConnection);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

/**

Destructor

*/	

EXPORT_C CMTPSetObjectPropValue::~CMTPSetObjectPropValue()

	{	

	delete iMTPTypeString;

	iSingleton.Close();

	iDpSingletons.Close();

	delete iObjMeta;

	}

/**

Standard c++ constructor

*/	

CMTPSetObjectPropValue::CMTPSetObjectPropValue(

									MMTPDataProviderFramework& aFramework,

									MMTPConnection& aConnection)

	:CMTPRequestProcessor(aFramework, aConnection, sizeof(KMTPSetObjectPropValuePolicy)/sizeof(TMTPRequestElementInfo), KMTPSetObjectPropValuePolicy),

	iRfs(aFramework.Fs())

	{

	}

/**

A helper function of CheckRequestL. To check whether the object property code is readonly.

@param aObjectPropCode the object property code passed in.

@return ETrue if the object property code is readonly. Otherwise EFalse.

*/	

TBool CMTPSetObjectPropValue::IsPropCodeReadonly(TUint32 aObjectPropCode)

	{

	TBool returnCode = EFalse;

	if(aObjectPropCode == EMTPObjectPropCodeStorageID

		|| aObjectPropCode == EMTPObjectPropCodeObjectFormat

		|| aObjectPropCode == EMTPObjectPropCodeProtectionStatus

		|| aObjectPropCode == EMTPObjectPropCodeObjectSize

		|| aObjectPropCode == EMTPObjectPropCodeParentObject

		|| aObjectPropCode == EMTPObjectPropCodePersistentUniqueObjectIdentifier)

		{

		returnCode = ETrue;

		}

	return returnCode;

	}

/**

Verify request

*/

TMTPResponseCode CMTPSetObjectPropValue::CheckRequestL()

	{

	TMTPResponseCode responseCode = CMTPRequestProcessor::CheckRequestL();

    TUint32 handle = Request().Uint32(TMTPTypeRequest::ERequestParameter1);

    CMTPObjectMetaData* meta = iRequestChecker->GetObjectInfo(handle);

    __ASSERT_DEBUG(meta, Panic(EMTPDpObjectNull));

    if(!iSingleton.StorageMgr().IsReadWriteStorage(meta->Uint(CMTPObjectMetaData::EStorageId)))

   		{

		responseCode = EMTPRespCodeAccessDenied;

   		}

	if(responseCode == EMTPRespCodeOK)

		{

		TUint32 propCode = Request().Uint32(TMTPTypeRequest::ERequestParameter2);

		if(propCode != EMTPObjectPropCodeAssociationType && propCode != EMTPObjectPropCodeAssociationDesc)

			{

			const TInt count = sizeof(KMTPDpSupportedProperties) / sizeof(TUint16);

			TInt i = 0;

			for(i = 0; i < count; i++)

				{

				if(KMTPDpSupportedProperties[i] == propCode

					&& IsPropCodeReadonly(propCode))

					// Object property code supported, but cann't be set.

					{

					responseCode = EMTPRespCodeAccessDenied;

					break;

					}

				else if(KMTPDpSupportedProperties[i] == propCode)

					// Object property code supported and can be set.

					{

					break;

					}

				}

			if(i == count)

				{

				responseCode = EMTPRespCodeInvalidObjectPropCode;

				}

			}

		else if(meta->Uint(CMTPObjectMetaData::EFormatCode) != EMTPFormatCodeAssociation)

			{

			responseCode = EMTPRespCodeInvalidObjectFormatCode;

			}

		}

	else

	    {

	    const TDesC& suid(meta->DesC(CMTPObjectMetaData::ESuid));

	    TEntry entry;

	    User::LeaveIfError( iFramework.Fs().Entry(suid, entry) );

	    //According to spec, there are 4 statuses: No Protection; Read-only; Read-only data; Non-transferrable data

	    //Currently, we only use FS's Read-only attribute to support No Protection and Read-only statuses.

	    //so if the attribute is read-only, we will return EMTPRespCodeAccessDenied.

        if (entry.IsReadOnly())

             {

             responseCode = EMTPRespCodeAccessDenied;

             }        

	    }

	return responseCode;	

	}

/**

SetObjectPropValue request handler

*/	

void CMTPSetObjectPropValue::ServiceL()

	{

	__ASSERT_DEBUG(iRequestChecker, Panic(EMTPDpRequestCheckNull));

	TUint32 handle = Request().Uint32(TMTPTypeRequest::ERequestParameter1);

	TUint32 propCode = Request().Uint32(TMTPTypeRequest::ERequestParameter2);

	iFramework.ObjectMgr().ObjectL(TMTPTypeUint32(handle), *iObjMeta);

	User::LeaveIfError(iRfs.Entry(iObjMeta->DesC(CMTPObjectMetaData::ESuid), iFileEntry));

	delete iMTPTypeString;

	iMTPTypeString = NULL;

	iMTPTypeString = CMTPTypeString::NewL();

	switch(propCode)

		{	

		case EMTPObjectPropCodeDateModified:

		case EMTPObjectPropCodeObjectFileName:

		case EMTPObjectPropCodeName:

			 ReceiveDataL(*iMTPTypeString);

			break;

		case EMTPObjectPropCodeNonConsumable:

			ReceiveDataL(iMTPTypeUint8);

			break;

		case EMTPObjectPropCodeAssociationType:

			{

			ReceiveDataL(iMTPTypeUint16);

			}

			break;

		case EMTPObjectPropCodeAssociationDesc:

			{

			ReceiveDataL(iMTPTypeUint32);

			}

			break;

		case EMTPObjectPropCodeStorageID:

		case EMTPObjectPropCodeObjectFormat:

		case EMTPObjectPropCodeProtectionStatus:

		case EMTPObjectPropCodeObjectSize:		

		case EMTPObjectPropCodeParentObject:

		case EMTPObjectPropCodePersistentUniqueObjectIdentifier:

			{

			//!!! Never come here, it should be blocked on CheckRequestL()

			// and EMTPRespCodeAccessDenied will be reported.

			//No break sentance, goto Panic

			}

		default:

		    User::Leave( KErrNotSupported );

		    break;

		}	

	}

/**

Apply the references to the specified object

@return EFalse

*/	

TBool CMTPSetObjectPropValue::DoHandleResponsePhaseL()

	{

	TMTPResponseCode responseCode = EMTPRespCodeInvalidObjectPropFormat;

	TUint32 propCode = Request().Uint32(TMTPTypeRequest::ERequestParameter2);

	switch(propCode)

		{

		case EMTPObjectPropCodeDateModified:

			{

			TTime modifiedTime;

			if( iDpSingletons.MTPUtility().MTPTimeStr2TTime(iMTPTypeString->StringChars(), modifiedTime) )

				{

				iRfs.SetModified( iObjMeta->DesC(CMTPObjectMetaData::ESuid), modifiedTime );

				responseCode = EMTPRespCodeOK;

				}

			else

				{

				responseCode = EMTPRespCodeInvalidObjectPropValue;

				}

			}

			break;

		case EMTPObjectPropCodeObjectFileName:

			{

			TRAPD(err, iDpSingletons.MTPUtility().RenameObjectL(iObjMeta->Uint(CMTPObjectMetaData::EHandle),iMTPTypeString->StringChars())) ;

			if( KErrNone == err )

				{

				responseCode = EMTPRespCodeOK;

				}

			else if(KErrNotFound == err)

				{

				responseCode = EMTPRespCodeInvalidObjectHandle;

				}

			else if( KErrAlreadyExists == err)

				{

				responseCode = EMTPRespCodeInvalidObjectPropValue;

				}

			else 

				{

				responseCode = EMTPRespCodeAccessDenied;

				}

			}

			break;

		case EMTPObjectPropCodeName:

			{			

			//Might need to consider to save this name into meta-data base.

			//Notify all the Data Providers if the Owner of the object is DeviceDP

			const TDesC& name = iMTPTypeString->StringChars();

			if(name != iFileEntry.iName)

				{

				iObjMeta->SetDesCL( CMTPObjectMetaData::EName, name);

				iFramework.ObjectMgr().ModifyObjectL(*iObjMeta);

				}

			responseCode = EMTPRespCodeOK;

			}

			break;

		case EMTPObjectPropCodeNonConsumable:

			{

			iObjMeta->SetUint( CMTPObjectMetaData::ENonConsumable, iMTPTypeUint8.Value());

			iFramework.ObjectMgr().ModifyObjectL(*iObjMeta);

			responseCode = EMTPRespCodeOK;

			}

			break;

		case EMTPObjectPropCodeAssociationType:

			{

		    if (EModeMTP != iFramework.Mode())

		    	{

		    	responseCode = EMTPRespCodeOK;	

		    	}

		    else if( iMTPTypeUint16.Value() != EMTPAssociationTypeGenericFolder )

				{

				responseCode = EMTPRespCodeInvalidObjectPropValue;

				}

			else

				{

				responseCode = EMTPRespCodeOK;

				}

			}

			break;

		case EMTPObjectPropCodeAssociationDesc:

			{

			if(TUint32(iMTPTypeUint32.Value()) == 0 )

				{

				responseCode = EMTPRespCodeOK;

				}

			else

				responseCode = EMTPRespCodeInvalidObjectPropValue;

			}	

			break;

		default:

		    User::Leave( KErrNotSupported );

		    break;

		}

	SendResponseL(responseCode);

	return EFalse;	

	}

TBool CMTPSetObjectPropValue::HasDataphase() const

	{

	return ETrue;

	}

/**

Second-phase construction

*/			

void CMTPSetObjectPropValue::ConstructL()

	{	

	iSingleton.OpenL();

	iObjMeta = CMTPObjectMetaData::NewL();

	iDpSingletons.OpenL(iFramework);

	}