// 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 <utf.h>

#include <s32strm.h>

#include "pbapxml.h"

#include "btaccesshostlog.h"

//DTD strings (in UTF-8 encoding)

_LIT8(KXMLVersion, 			"<?xml version=\"1.0\"?>\n");

_LIT8(KXMLDocType, 			"<!DOCTYPE vcard-listing SYSTEM \"vcard-listing.dtd\">\n");

_LIT8(KXMLBegin, 			"<vCard-listing version=\"1.0\">\n");

_LIT8(KXMLEnd, 				"</vCard-listing>\n");

_LIT8(KXMLEntryPreamble,	"<card handle = \"");

_LIT8(KXMLEntryMidamble, 	"\" name = \"");

_LIT8(KXMLEntryPostamble, 	"\"/>\n");

_LIT8(KXMLHandleExtension,	".vcf");

_LIT8(KXMLHandleFormat,		"%x");

_LIT8(KXMLEscapedQuote, 		""");

_LIT8(KXMLEscapedAmpersand,		"&");

_LIT8(KXMLEscapedLessThan,		"<");

_LIT8(KXMLEscapedGreaterThan,	">");

const TInt KXMLHandleLength = 8; // handle represented as 32-bit hex string

/*static*/ void PbapDTD::WriteBeginL(RWriteStream& aWriteStream)

	{

	LOG_STATIC_FUNC

	aWriteStream.WriteL(KXMLVersion);

	aWriteStream.WriteL(KXMLDocType);

	aWriteStream.WriteL(KXMLBegin);		

	}

/*static*/ void PbapDTD::WriteListingEntryL(RWriteStream& aWriteStream, TInt aHandle, const TDesC& aName)

	{

	LOG_STATIC_FUNC

	// convert handle to hexadecimal string

	TBuf8<KXMLHandleLength> handleBuf;	

	handleBuf.Format(KXMLHandleFormat, aHandle);

	// convert formatted name to UTF-8

	RBuf8 name(CnvUtfConverter::ConvertFromUnicodeToUtf8L(aName));

	CleanupClosePushL(name);

	// escape &,<,>, and " characters in name

	EscapeAttributeValueL(name);

	// write to the stream		

	aWriteStream.WriteL(KXMLEntryPreamble);

	aWriteStream.WriteL(handleBuf);

	aWriteStream.WriteL(KXMLHandleExtension);

	aWriteStream.WriteL(KXMLEntryMidamble);

	aWriteStream.WriteL(name);

	aWriteStream.WriteL(KXMLEntryPostamble);

	CleanupStack::PopAndDestroy(); //name

	}

/*static*/ void PbapDTD::WriteEndL(RWriteStream& aWriteStream)

	{

	LOG_STATIC_FUNC

	aWriteStream.WriteL(KXMLEnd);

	}

/**

Add XML escaping to attribute value. Replaces " with ", & with &,

< with &lt; and > with &gt; (attribute values always surrounded by quotes

so no need to escape apostrophes)  

*/	

/*static*/ void PbapDTD::EscapeAttributeValueL(RBuf8& aValue)

	{

	LOG_STATIC_FUNC

	// iterate through descriptor adding escaping if necessary. The descriptor has

	// to be resized each time an escape sequence is added, however these characters

	// are unlikely to appear in the attribute value

	for (TInt ii = 0; ii < aValue.Length(); ++ii)

		{

		switch (aValue[ii])

			{

			case '\"':

				{

				aValue.ReAllocL(aValue.Length() + KXMLEscapedQuote().Length());

				aValue.Replace(ii, 1, KXMLEscapedQuote);

				}

				break;

			case '&':

				{	

				aValue.ReAllocL(aValue.Length() + KXMLEscapedAmpersand().Length());

				aValue.Replace(ii, 1, KXMLEscapedAmpersand);

				}

				break;

			case '<':

				{	

				aValue.ReAllocL(aValue.Length() + KXMLEscapedLessThan().Length());

				aValue.Replace(ii, 1, KXMLEscapedLessThan);

				}

				break;

			case '>':

				{	

				aValue.ReAllocL(aValue.Length() + KXMLEscapedGreaterThan().Length());

				aValue.Replace(ii, 1, KXMLEscapedGreaterThan);

				}

				break;

			default:

				break;

			}

		}

	}