/*

* Copyright (c) 2003 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: Pin parser main module.

*

*/

#include <e32base.h>

#include "pinparser.h"

#include "fileutil.h"

TPinParser::TPinParser(TFileUtil& aFileUtil) : iFileUtil(aFileUtil)

    {

    }

void TPinParser::ParsePolicyInfoL(const TFileName& aPinFile, TVpnPolicyInfo& aPolicyInfo)

    {

    HBufC* fileData = iFileUtil.LoadFileDataUL(aPinFile);

    iLexer.Assign(*fileData);

    TPtrC token(NULL, 0);

    while (!iLexer.Eos())

        {

        token.Set(iLexer.NextToken());

        ParseSectionInfo(token, aPolicyInfo);

        }

    delete fileData;

    }

void TPinParser::ParsePolicyDetailsL(const TDesC& aPinFile, TVpnPolicyDetails& aPolicyDetails)

    {

    HBufC* fileData = iFileUtil.LoadFileDataUL(aPinFile);

    iLexer.Assign(*fileData);

    TPtrC token(NULL, 0);

    while (!iLexer.Eos())

        {

        token.Set(iLexer.NextToken());

        ParseSectionDetails(token, aPolicyDetails);

        }

    delete fileData;

    }

void TPinParser::ParseSectionInfo(const TDesC& aSectionTag, TVpnPolicyInfo& aPolicyInfo)

    {

    TPtrC content = GetSectionContent();

    if (aSectionTag.CompareF(KNameSection) == 0)

        {

        aPolicyInfo.iName.Copy(content.Left(aPolicyInfo.iName.MaxLength()));

        aPolicyInfo.iName.Trim();

        }

    }

void TPinParser::ParseSectionDetails(const TDesC& aSectionTag, TVpnPolicyDetails& aPolicyDetails)

    {

    TPtrC content = GetSectionContent();

    if (aSectionTag.CompareF(KNameSection) == 0)

        {

        aPolicyDetails.iName.Copy(content.Left(aPolicyDetails.iName.MaxLength()));

        aPolicyDetails.iName.Trim();

        }

    if (aSectionTag.CompareF(KDescriptionSection) == 0)

        {

        aPolicyDetails.iDescription.Copy(content.Left(aPolicyDetails.iDescription.MaxLength()));

        aPolicyDetails.iDescription.Trim();

        }

    if (aSectionTag.CompareF(KVersionSection) == 0)

        {

        aPolicyDetails.iVersion.Copy(content.Left(aPolicyDetails.iVersion.MaxLength()));

        aPolicyDetails.iVersion.Trim();

        }

    if (aSectionTag.CompareF(KIssuerNameSection) == 0)

        {

        aPolicyDetails.iIssuerName.Copy(content.Left(aPolicyDetails.iIssuerName.MaxLength()));

        aPolicyDetails.iIssuerName.Trim();

        }

    if (aSectionTag.CompareF(KContactSection) == 0)

        {

        aPolicyDetails.iContactInfo.Copy(content.Left(aPolicyDetails.iContactInfo.MaxLength()));

        aPolicyDetails.iContactInfo.Trim();

        }

    }

TPtrC TPinParser::GetSectionContent()

    {

    iLexer.Mark();

    while (!iLexer.Eos())

        {

        iLexer.Inc();

        if (iLexer.Eos() || (iLexer.Peek() == KSectionBeginChar))

            {

            break;

            }

        }

    return iLexer.MarkedToken();

    }

HBufC* TPinParser::PolicyDetailsAsTextL(const TVpnPolicyDetails& aPolicyDetails)

    {

    HBufC* text = HBufC::NewL(KInitialDetailsTextLength);

    CleanupStack::PushL(text);

    SmartAppendL(text, KNameSection());

    SmartAppendL(text, KNewLine());

    SmartAppendL(text, aPolicyDetails.iName);

    SmartAppendL(text, KNewLine());

    SmartAppendL(text, KDescriptionSection());

    SmartAppendL(text, KNewLine());

    SmartAppendL(text, aPolicyDetails.iDescription);

    SmartAppendL(text, KNewLine());

    SmartAppendL(text, KVersionSection());

    SmartAppendL(text, KNewLine());

    SmartAppendL(text, aPolicyDetails.iVersion);

    SmartAppendL(text, KNewLine());    

    SmartAppendL(text, KIssuerNameSection());

    SmartAppendL(text, KNewLine());    

    SmartAppendL(text, aPolicyDetails.iIssuerName);

    SmartAppendL(text, KNewLine());    

    SmartAppendL(text, KContactSection());

    SmartAppendL(text, KNewLine());    

    SmartAppendL(text, aPolicyDetails.iContactInfo);

    SmartAppendL(text, KNewLine());

    CleanupStack::Pop(); // text

    return text;

    }

void TPinParser::SmartAppendL(HBufC*& aBuf, const TDesC& aText)

    {

    // Make sure that we have enough space for the new text

    TInt spaceLeft = aBuf->Des().MaxLength() - aBuf->Des().Length();

    if (aText.Length() > spaceLeft)

        {

        // Allocate enough space for the new text + some additional 

        // free space so that allocations are not too frequent

        TInt newMaxLength = aBuf->Des().MaxLength() + aText.Length() + KInitialDetailsTextLength;

        aBuf = aBuf->ReAllocL(newMaxLength);

        }

    aBuf->Des().Append(aText);

    }