// 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:

//

#include <zipfile.h>

#include "unzip.h"

CUnzip::CUnzip(RFs& aFs, const TDesC& aFileName) : iZipFile(aFileName), iFs(aFs) 

	{

	}

CUnzip::~CUnzip()

	{

	delete iZip;

	}

EXPORT_C CUnzip* CUnzip::NewLC(RFs& aFs, const TDesC& aFileName)

	{

	CUnzip* self = new(ELeave) CUnzip(aFs, aFileName);

	CleanupStack::PushL(self);

	self->iZip = CZipFile::NewL(self->iFs, self->iZipFile);

	return self;

	}

EXPORT_C void CUnzip::ExtractL(const TDesC& aOutDir)

	{

	CZipFileMemberIterator*	members = iZip->GetMembersL();

	CleanupStack::PushL(members);

	CZipFileMember* member = members->NextL();

	while (member)

		{

		CleanupStack::PushL(member);

		ExtractFileL(member, aOutDir);

		CleanupStack::PopAndDestroy(member); 

		member = members->NextL();

		}

	CleanupStack::PopAndDestroy(members); 

	}

void CUnzip::ExtractFileL(const CZipFileMember* aMember, const TDesC& aOutDir)

	{

	HBufC* name = aMember->Name()->AllocLC();

	for (TInt i = 0; i<name->Length(); i++)

		{

		if ((*name)[i] == '/')

			{

			name->Des()[i] = '\\';

			}

		}

	TFileName outFile;

	outFile.Append(aOutDir);

	outFile.Append('\\');

	outFile.Append(*name);

	RFile out;

	CleanupClosePushL(out);

	iFs.MkDirAll(outFile);

	TInt retVal = out.Replace(iFs, outFile, EFileShareAny|EFileWrite);

	if(retVal != KErrNone)

		{

		//Could be a directory name which we are planning to write to.

  		CleanupStack::PopAndDestroy(2,name); //out, name

  		out.Close();

  		return;

  		}

	RZipFileMemberReaderStream* fileStream;

	TInt error = iZip->GetInputStreamL(aMember, fileStream);

	if (error != KErrNone)

		{

		iFs.Delete(outFile);

		User::Leave(error);

		}

	CleanupStack::PushL(fileStream);

	TUint32 size = aMember->UncompressedSize();

	HBufC8* bytes = HBufC8::New(size);

	CleanupStack::PushL(bytes);

	TPtr8 ptr = bytes->Des();

	User::LeaveIfError(fileStream->Read(ptr,size));

	User::LeaveIfError(out.Write(ptr));

	CleanupStack::PopAndDestroy(4,name); // bytes, fileStream, out and name

	}