--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/applayerpluginsandutils/httpprotocolplugins/httpheadercodec/chttpheaderwriter.cpp	Tue Feb 02 01:09:52 2010 +0200
@@ -0,0 +1,208 @@
+// Copyright (c) 2002-2009 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 "chttpheaderwriter.h"
+
+#include <tinternetdate.h>
+#include <httpstringconstants.h>
+#include <http/rhttpsession.h>
+#include <httperr.h>
+
+#include "CHeaderField.h"
+
+_LIT8(KCommaSpaceSep,", ");
+_LIT8(KSemiSpaceSep,"; ");
+
+const TInt KMaxNumContentLengthDigits = 10;
+const TInt KMaxNumQDigits = 5;
+
+CHttpHeaderWriter::CHttpHeaderWriter(RStringPool aStringPool)
+: CHeaderWriter(), iStringPool(aStringPool), iStringTable(RHTTPSession::GetTable())
+	{
+	}
+
+void CHttpHeaderWriter::EncodeGenericNumberHeaderL(RHeaderField& aHeader, TInt aErrorCodeToUseOnFailure) const
+	{
+	// header = <header> ":" 1*DIGIT
+	THeaderFieldPartIter iter1 = aHeader.PartsL();
+	iter1.First();
+	if (!iter1.AtEnd())
+		{
+		const CHeaderFieldPart* part = iter1();
+		if (part)
+			{
+			THTTPHdrVal pt1val = part->Value();
+			if (pt1val.Type() == THTTPHdrVal::KTIntVal)
+				{
+				TBuf8<KMaxNumContentLengthDigits> lenBuf;
+				lenBuf.Num(pt1val.Int());
+				aHeader.BeginRawDataL();
+				aHeader.WriteRawDataL(lenBuf);
+				aHeader.CommitRawData();
+				return;
+				}
+			}
+		}
+	User::Leave(aErrorCodeToUseOnFailure);
+	}
+
+void CHttpHeaderWriter::EncodeGenericDateL(RHeaderField& aHeader, TInt aErrorCodeToUseOnFailure) const
+	{
+	// <header> = <header> ":" HTTP-date
+
+	THeaderFieldPartIter iter1 = aHeader.PartsL();
+	iter1.First();
+	if (iter1.AtEnd())
+		User::Leave(aErrorCodeToUseOnFailure);
+	const CHeaderFieldPart* part = iter1();
+	if (part == NULL)
+		User::Leave(aErrorCodeToUseOnFailure);
+	THTTPHdrVal value = part->Value();
+	if (value.Type() != THTTPHdrVal::KDateVal)
+		User::Leave(aErrorCodeToUseOnFailure);
+
+
+	
+	TInternetDate date(value);
+	HBufC8* internetDate = date.InternetDateTimeL(TInternetDate::ERfc1123Format);
+	CleanupStack::PushL(internetDate);
+	aHeader.BeginRawDataL();
+	aHeader.WriteRawDataL(*internetDate);
+	aHeader.CommitRawData();
+	CleanupStack::PopAndDestroy(internetDate);
+	}
+
+
+// Helper to DoAcceptL(), DoAcceptCharsetL(), DoAcceptLanguageL() and DoAcceptEncodingL() for comma-separated
+// lists incorporating q-values..
+void CHttpHeaderWriter::DoGeneralAcceptHeaderL(TInt aNormalHeaderLen, RHeaderField& aHeader, RStringF /*aFieldType*/, TInt aErrorCode) const
+	{
+	THeaderFieldPartIter iter = aHeader.PartsL();
+	iter.First();
+	if (iter.AtEnd())
+		User::Leave(aErrorCode);
+
+	// Any header field-specific variations may be made by checking aFieldType...
+
+	aHeader.BeginRawDataL(aNormalHeaderLen);
+	do
+		{
+		// Write raw data for the StringF component in the next part
+		const CHeaderFieldPart* part = WriteRawStrFPartL(aHeader, iter, aErrorCode);
+
+		// Check for parameters
+		THeaderFieldParamIter iter2 = part->Parameters();
+		iter2.First();
+		while (!iter2.AtEnd())
+			{
+			// Got a parameter - write a semicolon separator
+			aHeader.WriteRawDataL(KSemiSpaceSep);
+			const CHeaderFieldParam* param = iter2();
+			if (!param)
+				User::Leave(aErrorCode);
+
+			// If it's the 'q' parameter we need to decode the q-value
+			RStringF qStr = iStringPool.StringF(HTTP::EQ, iStringTable);
+			THTTPHdrVal paramVal = param->Value();
+			if (param->Name() == qStr)
+				{
+				// Get the q value
+				if (paramVal.Type() != THTTPHdrVal::KTIntVal)
+					User::Leave(KErrHttpEncodeQValue);
+				TInt val = paramVal.Int();
+				THTTPHdrVal::TQConv q(val);
+				TBuf8<KMaxNumQDigits> qDesC;
+				TRealFormat realFt(3); // allow 3 decimal places
+				// always use a decimal separator rather than the one supplied 
+				// by the current locale
+				realFt.iPoint = TChar('.'); //define decimal separator char
+				qDesC.Num(q, realFt);
+				aHeader.WriteRawDataL('q');
+				aHeader.WriteRawDataL('=');
+				aHeader.WriteRawDataL(qDesC);
+				}
+			else
+				{
+				// Extension parameter - handle strings only
+				if (paramVal.Type() != THTTPHdrVal::KStrFVal)
+					User::Leave(aErrorCode);
+				RStringF paramName = iStringPool.StringF(param->Name());
+				aHeader.WriteRawDataL(paramName.DesC());
+				aHeader.WriteRawDataL('=');
+				aHeader.WriteRawDataL(paramVal.StrF().DesC());
+				}
+
+			// Move onto the next parameter,
+			++iter2;
+			}
+
+		// If there's another media field we need a separator
+		++iter;
+		if (!iter.AtEnd())
+			aHeader.WriteRawDataL(KCommaSpaceSep);
+		}while (!iter.AtEnd());
+
+	// Done
+	aHeader.CommitRawData();
+	}
+
+// Helper to DoConnectionL(), DoContentEncodingL(), DoTransferEncodingL(), etc., which take  comma-separated
+// token lists.
+void CHttpHeaderWriter::DoTokenCsvListHeaderL(RHeaderField& aHeader, TInt aErrorCode) const
+	{
+	DoTokenListHeaderL(aHeader, KCommaSpaceSep(), aErrorCode);
+	}
+
+// Helper to DoUserAgentL(), etc., which take token lists with arbitrary separators
+void CHttpHeaderWriter::DoTokenListHeaderL(RHeaderField& aHeader, const TDesC8& aSep, TInt aErrorCode) const
+	{
+	THeaderFieldPartIter iter = aHeader.PartsL();
+	iter.First();
+	if (iter.AtEnd())
+		User::Leave(aErrorCode);
+
+	aHeader.BeginRawDataL();
+	do
+		{
+		// Write raw data for the StringF component in the next part
+		(void)WriteRawStrFPartL(aHeader, iter, KErrHttpEncodeConnection);
+
+		// If there's another media field we need a separator
+		++iter;
+		if (!iter.AtEnd())
+			{
+			aHeader.WriteRawDataL(aSep);
+			(void)WriteRawStrFPartL(aHeader, iter, KErrHttpEncodeConnection);
+			++iter;
+  		    if(!iter.AtEnd())
+			    aHeader.WriteRawDataL(aSep);			
+			}
+		}while (!iter.AtEnd());
+
+	// Done
+	aHeader.CommitRawData();
+	}
+
+const CHeaderFieldPart* CHttpHeaderWriter::WriteRawStrFPartL(RHeaderField& aHeader, THeaderFieldPartIter& aIter, TInt aErrorCode) const
+	{
+	const CHeaderFieldPart* part = aIter();
+	if (part == NULL)
+		User::Leave(aErrorCode);
+	THTTPHdrVal ptVal = part->Value();
+	if (ptVal.Type() != THTTPHdrVal::KStrFVal)
+		User::Leave(aErrorCode);
+	aHeader.WriteRawDataL(ptVal.StrF().DesC());
+	return part;
+	}