/*

* Copyright (c) 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 of Midp2BackupPlugin with USIF 

*

*/

#include <connect/sbdefs.h>

#include <s32mem.h>

#include <s32file.h>

#include <f32file.h>

#include <apgcli.h>

#include "midp2backuppluginusif.h"

#include "midp2backupdataids.h"

#include "javastoragebackuputil.h"

#include "javaversionbackuputil.h"

#include "javascrbackuputil.h"

#include "javastoragenames.h"

#include "javastorageentry.h"

#include "javastorage.h"

#include "javacommonutils.h"

#include "logger.h"

using namespace std;

using namespace java::storage;

using namespace java::backup;

// ======== MEMBER FUNCTIONS ========

CMidp2BackupPlugin::CMidp2BackupPlugin()

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin constructor");

}

void CMidp2BackupPlugin::ConstructL()

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::ConstructL");

    iIconDescIndex = 0;

    iBufferSpaceLeft = 0;

    iFirstCallToGetBackupDataSection = ETrue;

    iStorageDataBackup = ETrue;

    iScrDataBackup = ETrue;

    iStorageDataRestore = ETrue;

    iJavaVersionInfoWritten = EFalse;

    iRestoreState = EVersion;

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

    // to share file handles with AppArc

    User::LeaveIfError(iFs.ShareProtected());

    iStorageBackupUtil = CStorageBackupUtil::NewL();

    //iAppArcUtil = CAppArcBackupUtil::NewL(iFs);

    iScrBackupUtil = CScrBackupUtil::NewL();

}

CMidp2BackupPlugin* CMidp2BackupPlugin::NewL()

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::NewL");

    CMidp2BackupPlugin* self = new(ELeave) CMidp2BackupPlugin();

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop();

    return self;

}

CMidp2BackupPlugin::~CMidp2BackupPlugin()

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin destructor");

    iFs.Close();

    iIconUidArray.Close();

    //delete iAppArcUtil;

    delete iIconDesc;

    delete iRestoreIconDesc;

    delete iStorageBackupUtil;

}

// from base class CBackupPlugin

void CMidp2BackupPlugin::PrepareForBURL(TInt aBackupStateValue)

{

    (void)aBackupStateValue;  // Just to suppress a warning in release builds

    LOG1(EBackup, EInfo, "CMidp2BackupPlugin::PrepareForBURL, BUR state: %d", aBackupStateValue);

}

void CMidp2BackupPlugin::ReceiveSnapshotDataL(TDriveNumber /* aDrive */, TDesC8& /* aBuffer */, TBool /* aLastSection */)

{

    JELOG2(EBackup);

    User::Leave(KErrNotSupported);

}

TUint CMidp2BackupPlugin::GetExpectedDataSize(TDriveNumber /* aDrive */)

{

    JELOG2(EBackup);

    return 0;

}

void CMidp2BackupPlugin::GetSnapshotDataL(TDriveNumber /* aDrive */, TPtr8& /* aBuffer */, TBool& /* aFinished */)

{

    JELOG2(EBackup);

    User::Leave(KErrNotSupported);

}

void CMidp2BackupPlugin::InitialiseGetBackupDataL(TDriveNumber aDrive)

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::InitialiseGetBackupDataL");

    iDrive = aDrive;

}

void CMidp2BackupPlugin::GetBackupDataSectionL(TPtr8& aBuffer, TBool& aFinished)

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::GetBackupDataSectionL");

    iBufferSpaceLeft = aBuffer.MaxLength();

    RDesWriteStream stream(aBuffer);

    CleanupClosePushL(stream);

    if (!iJavaVersionInfoWritten)

    {

        JavaVersionBackupUtil::WriteJavaVersionL(stream);

        iJavaVersionInfoWritten = ETrue;

        iBufferSpaceLeft -= 8;

    }

    if (iStorageDataBackup)

    {

        iStorageBackupUtil->BackupStorageDataL(stream, iStorageDataBackup, iBufferSpaceLeft);

        aFinished = EFalse;

    }

    else if(iScrDataBackup)

    {

        iScrBackupUtil->BackupScrDataL(stream,iScrDataBackup,iBufferSpaceLeft);

        aFinished = EFalse;

    }

    CleanupStack::PopAndDestroy(&stream);

}

void CMidp2BackupPlugin::InitialiseRestoreBaseDataL(TDriveNumber aDrive)

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::InitialiseRestoreBaseDataL");

    iDrive = aDrive;

}

void CMidp2BackupPlugin::RestoreBaseDataSectionL(TDesC8& aBuffer, TBool aFinished)

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::RestoreBaseDataSectionL");

    iBufferSpaceLeft = aBuffer.Size();

    RDesReadStream stream(aBuffer);

    CleanupClosePushL(stream);

    TBool versionCheck = ETrue;

    if (((iRestoreState == EVersion) || (iRestoreState == EInstall)) && iBufferSpaceLeft >= 8)

    {

        if (iRestoreState == EInstall)

        {

            versionCheck = EFalse;

        }

        TUint ret = JavaVersionBackupUtil::CheckJavaVersionL(stream,iDrive,versionCheck);

        if (1==ret)

        {

            // Here set the satus to restore finished, so that control goes back to SBE & SBE calls B&R for another drive

            iRestoreState = EInstall;

        }

        else

        {

            /* version information has been written to stream.

             So change restore state to restore storage data  */

            iRestoreState = EStorage;

        }

        // version information is of length 8 bytes.

        iBufferSpaceLeft -= 8;

    }

    if (iRestoreState == EStorage)

    {

        iStorageBackupUtil -> RestoreStorageDataL(stream, iRestoreState, iBufferSpaceLeft);

    }

    if(iRestoreState == EScr)

        {

            iScrBackupUtil->RestoreScrDataL(stream,iRestoreState,iBufferSpaceLeft); 

        }

    // Only at first call

    if ((iRestoreState != EScr && iRestoreState != EVersion) && (iRestoreState != EInstall))

    {/*

        if (iRestoreState == EAppArc)

        {

            // Making AppArc deregistrations

            TRAPD(err, iAppArcUtil->DeregisterAppsL(iDrive));

            if (err)

            {

                ELOG(EBackup, "Leave in deregistering apps");

            }

        }

        // Process the data buffer for restore

        ProcessBufferL(stream);

        if (aFinished)

        {

            // Set state to EStorage

            iRestoreState = EStorage;

        }

   */ }

    aFinished = ETrue;

    CleanupStack::PopAndDestroy(&stream);

}

void CMidp2BackupPlugin::InitialiseRestoreIncrementDataL(TDriveNumber /* aDrive */)

{

    JELOG2(EBackup);

    User::Leave(KErrNotSupported);

}

void CMidp2BackupPlugin::RestoreIncrementDataSectionL(TDesC8& /* aBuffer */, TBool /* aFinished */)

{

    JELOG2(EBackup);

    User::Leave(KErrNotSupported);

}

void CMidp2BackupPlugin::RestoreComplete(TDriveNumber /* aDrive */)

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::RestoreComplete");

}

TUint CMidp2BackupPlugin::MmcIdL()

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::MmcIdL()");

    TVolumeInfo* volumeInfo = new(ELeave) TVolumeInfo();

    TInt err = iFs.Volume(*volumeInfo, iDrive);

    if (!err)

    {

        TUint mmcId = volumeInfo->iUniqueID;

        return mmcId;

    }

    else

    {

        return 0;

    }

}

/*

void CMidp2BackupPlugin::ProcessBufferL(RDesReadStream& stream)

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::ProcessBuffer()");

    // Cycle until there's data in the buffer

    while (iBufferSpaceLeft > 0)

    {

        switch (iRestoreState)

        {

        case EAppArc:

            ProcessFirstBufferL(stream, iBufferSpaceLeft);

            break;

        case EInIcon:

            ProcessInIconL(stream, iBufferSpaceLeft);

            break;

        case EInSize:

            ProcessInSizeL(stream, iBufferSpaceLeft);

            break;

        default:

            CleanupStack::PopAndDestroy(&stream);

            User::Leave(KErrNotSupported);

        }

    }

}

*/

_LIT(KStarWildCard, "*.*");

void CMidp2BackupPlugin::RestoreMmcRegistryL()

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::RestoreMmcRegistry()");

    /* If backed up MMC is not the same as the current MMC, copy the entries

       from the directory of the backed up MMC to the directory

       of the current MMC */

    TUint32 mmc = MmcIdL();

    if (iBackupMmc != mmc)

    {

        // Create path to old place

        TPath path_old;

        CreateMmcPath(path_old, iDrive, iBackupMmc);

        // Create path to new place

        TPath path_new;

        CreateMmcPath(path_new, iDrive, mmc);

        // Get old files list

        CFileMan* fileMan = CFileMan::NewL(iFs);

        CleanupStack::PushL(fileMan);

        // Copy to new place

        iFs.MkDir(path_new);

        path_old.Append(KStarWildCard);

        TInt  err = fileMan->Copy(path_old, path_new);

        ILOG1(EBackup, "File copy, status: %d", err);

        User::LeaveIfError(err);

        CleanupStack::PopAndDestroy();

    }

}

_LIT(KPrivatePath, "C:\\private\\");

void CMidp2BackupPlugin::CreateMmcPath(TDes& aPathName, TInt aDrive, TUint aUniqueId)

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::CreateMmcPath()");

    aPathName.Zero();

    aPathName.Append(KPrivatePath);

    aPathName.AppendNum(KRegistryServerUid, EHex);

    aPathName.Append(KPathDelimiter);

    // append drive name

    TDriveUnit driveUnit(aDrive);

    aPathName.Append(driveUnit.Name().Left(1));

    aPathName.Append(KPathDelimiter);

    TUint64 id = aUniqueId;

    aPathName.AppendNum(id, EHex);

    aPathName.Append(KPathDelimiter);

}

/*

TBool CMidp2BackupPlugin::NextIcon(TUid& aCurrentUid, HBufC*& aFullFileName)

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::NextIcon()");

    if (iIconUidArray.Count() > iIconFilePointer)

    {

        aCurrentUid = iIconUidArray[iIconFilePointer];

        iAppArcUtil->GetIconFilename(iIconUidArray[iIconFilePointer], aFullFileName);

        iIconFilePointer++;

        return ETrue;

    }

    else

    {

        // There are no more icon files

        return EFalse;

    }

}

void CMidp2BackupPlugin::ProcessFirstBufferL(RDesReadStream& aStream, TInt& aBufferSpaceLeft)

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::ProcessFirstBuffer()");

    if (iDrive >= EDriveE && iDrive <= EDriveZ)

    {

        // Read MMC id and restore MMC entries if needed

        iBackupMmc = aStream.ReadUint32L();

        aBufferSpaceLeft -= sizeof(iBackupMmc);

        LOG1(EBackup, EInfo, "Read MMC Id: %u", iBackupMmc);

        RestoreMmcRegistryL();

    }

    if (aBufferSpaceLeft >= sizeof(TInt32))

    {

        iIconFileSizeLeft = aStream.ReadInt32L();

        aBufferSpaceLeft -= sizeof(iIconFileSizeLeft);

        iRestoreIconDesc = HBufC8::NewL(iIconFileSizeLeft);

        iRestoreState = EInIcon;

    }

    else

    {

        // No more data to read

        aBufferSpaceLeft = 0;

    }

}

void CMidp2BackupPlugin::ProcessInIconL(RDesReadStream& aStream, TInt& aBufferSpaceLeft)

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::ProcessInIcon()");

    TPtr8 restoreIconPtr = iRestoreIconDesc->Des();

    HBufC8* tempDesc = HBufC8::NewL(iIconFileSizeLeft);

    CleanupStack::PushL(tempDesc);

    TPtr8 tempPtr = tempDesc->Des();

    // Icon cannot be read fully

    if (iIconFileSizeLeft > aBufferSpaceLeft)

    {

        aStream.ReadL(tempPtr, aBufferSpaceLeft);

        restoreIconPtr.Append(tempPtr);

        iIconFileSizeLeft -= aBufferSpaceLeft;

        aBufferSpaceLeft = 0;

        iRestoreState = EInIcon;

    }

    // Icon can be read fully

    else

    {

        aStream.ReadL(tempPtr, iIconFileSizeLeft);

        restoreIconPtr.Append(tempPtr);

        aBufferSpaceLeft -= iIconFileSizeLeft;

        iRestoreState = EInSize;

        TRAPD(err, iAppArcUtil->RegisterAppL(restoreIconPtr, iDrive));

        if (err)

        {

            ELOG(EBackup, "Registerin application to AppArc failed.");

        }

    }

    CleanupStack::PopAndDestroy(tempDesc);

}

void CMidp2BackupPlugin::ProcessInSizeL(RDesReadStream& aStream, TInt& aBufferSpaceLeft)

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::ProcessInSize()");

    if (aBufferSpaceLeft >= sizeof(TInt32))

    {

        if (iSizeBuffer.Size() != 0)

        {

            // Read leftover part of size

            TInt readData = sizeof(TInt32) - iSizeBuffer.Size();

            aStream.ReadL(iSizeBuffer, readData);

            RMemReadStream sizeStream(iSizeBuffer.Ptr(), 4);

            CleanupClosePushL(sizeStream);

            iIconFileSizeLeft = sizeStream.ReadInt32L();

            CleanupStack::PopAndDestroy(&sizeStream);

            aBufferSpaceLeft -= sizeof(readData);

        }

        else

        {

            // Read size in full

            iIconFileSizeLeft = aStream.ReadInt32L();

            aBufferSpaceLeft -= sizeof(iIconFileSizeLeft);

        }

        delete iRestoreIconDesc;

        iRestoreIconDesc = NULL;

        iRestoreIconDesc = HBufC8::NewL(iIconFileSizeLeft);

        iRestoreState = EInIcon;

    }

    else

    {

        // Read first byte(s) of size

        aStream.ReadL(iSizeBuffer, aBufferSpaceLeft);

        aBufferSpaceLeft = 0;

    }

}

void CMidp2BackupPlugin::ResetIconArray()

{

    LOG(EBackup, EInfo, "CMidp2BackupPlugin::ResetIconArray()");

    // Remove all entries

    while (iIconUidArray.Count())

    {

        iIconUidArray.Remove(0);

    }

}

*/