--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/messagingfw/wappushfw/MiscPushMsgUtils/src/Cmultiparttextiterator.cpp	Wed Nov 03 22:41:46 2010 +0530
@@ -0,0 +1,187 @@
+// 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 "cmultiparttextiterator.h"
+
+EXPORT_C  CMultipartTextIterator* CMultipartTextIterator::NewL(CPushMessage& aPushMessage)
+/** Allocates and creates a new MIME multipart message iterator.
+
+@param aPushMessage MIME multipart message to process
+@return New MIME multipart message iterator */
+	{
+	CMultipartTextIterator* self =  new (ELeave) CMultipartTextIterator(aPushMessage);
+	CleanupStack::PushL(self);
+	self->ConstructL(); 
+	CleanupStack::Pop();
+	return self;
+	}
+
+
+/**
+ * CMultipartTextMessage
+ * @param aPushMessage A message determined to be text/multipart. 
+ */
+CMultipartTextIterator::CMultipartTextIterator(CPushMessage& aPushMessage) : 
+	CMultipartIteratorBase(aPushMessage)
+	{
+	}
+
+/**
+ * Fully instantiates this class.  
+ * Finds the boundary and sets the internal pointer to the first part
+ */
+void CMultipartTextIterator::ConstructL()  
+	{
+	BoundaryParamL();
+	FirstL();
+	}
+
+EXPORT_C CMultipartTextIterator::~CMultipartTextIterator()
+/** Destructor. */
+	{
+	delete iBoundary;
+	}
+
+
+
+/**
+ * Finds the boundary from the WAP Binary Header.  
+ * The actually boundary conforms to RFC 2061.  
+ * @leave KErrCorrupt if the message does not contain a boundary
+ * @leave HBufC8::NewL
+*/
+void CMultipartTextIterator::BoundaryParamL()
+	{
+	TPtrC contentType;
+	iPushMessage.GetContentType(contentType);
+	__ASSERT_DEBUG( contentType.FindF(KMultipartText) == 0 , User::Panic(KPushInvalidContentType,0));
+
+	const TInt KMaxBoundaryLen(74);	// Max Boundary = 70 + preceeding "--" and at the end "--"
+	TBuf8<KMaxBoundaryLen> cleanCtHdrValue;
+	TPtrC8 ctHdrValue;
+	TPtrC8 bndLabel(KBoundaryParam);
+	iPushMessage.GetBinaryHeaderField(EHttpContentType, ctHdrValue);
+
+
+	TInt paramOffset = ctHdrValue.FindF(KBoundaryParam);
+	if (paramOffset != KErrNotFound)
+		{
+		ctHdrValue.Set(ctHdrValue.Mid(paramOffset + bndLabel.Length()));
+
+		// remove the NULL terminators
+		cleanCtHdrValue.Copy(ctHdrValue);
+		TInt nullTerm = cleanCtHdrValue.Locate(0);
+		for ( ; nullTerm != KErrNotFound; nullTerm = cleanCtHdrValue.Locate(0))
+			cleanCtHdrValue.Delete(nullTerm,1);
+
+		// remove start & end quotes
+		if (cleanCtHdrValue[0] == '\"')
+			{
+			cleanCtHdrValue.Delete(0,1);
+			TInt endIndex = cleanCtHdrValue.Length() - 1;
+			if (cleanCtHdrValue[endIndex] == '\"')
+				cleanCtHdrValue.Delete(endIndex,1);
+			else
+				User::Leave(KErrCorrupt);
+			}
+		}
+	else
+		User::Leave(KErrCorrupt);
+
+	iBoundary = HBufC8::NewL(sizeof(KBoundaryStartEnd) - 1 + ctHdrValue.Length());
+	iBoundary->Des().Copy(KBoundaryStartEnd);
+	iBoundary->Des().Append(cleanCtHdrValue);	
+	}
+
+
+EXPORT_C TBool CMultipartTextIterator::NextL()
+/** Moves the iterator to the next message part.
+
+@return ETrue if there is a next part, EFalse otherwise */
+	{
+	TPtrC8 hdrPtr;
+	TInt offset = 0;
+	
+	hdrPtr.Set(iIndexPtr);
+
+	// find the boudary which starts our next part
+	offset = hdrPtr.Find(*iBoundary);
+	
+	if (offset == KErrNotFound )
+			return EFalse;
+
+	// point to the end of the boudary string
+	hdrPtr.Set(hdrPtr.Mid(offset + iBoundary->Length()));
+
+	// did we encounter the last "--"
+	if (hdrPtr.Find(KBoundaryStartEnd) == 0)
+			return EFalse;
+
+	// see if this is really the boundary.  Expecting to see \r\n, no spurious text following it
+	if (hdrPtr.Find(KCRLF) != 0)
+			return EFalse;
+	
+	// point to the beginning of the new part 
+	TPtrC8 ptrCRLF(KCRLF);
+	hdrPtr.Set(hdrPtr.Mid(ptrCRLF.Length()));
+	iIndexPtr.Set(hdrPtr);
+
+	return ETrue;
+	}
+
+
+EXPORT_C void CMultipartTextIterator::FirstL()
+/** Resets the iterator the beginning of the first part of the message. */
+	{
+	// Set iIndexPtr to the start of the body
+	iPushMessage.GetMessageBody(iIndexPtr);
+
+	// need to call this to get past the first boundary
+	NextL();
+	}
+
+
+EXPORT_C CPushMessage*	CMultipartTextIterator::PartL()
+/** Gets the message part that the iterator is currently referencing.
+
+@return Message part */
+	{
+	// iIndexPtr should be pointing to line after the boudary
+
+	// check if there are boudary headers
+	TPtrC8 hdrSep(KHdrSeparator);
+	TPtrC8 hdrStart(iIndexPtr);
+
+	TInt offset = hdrStart.Find(KHdrSeparator);
+	if (offset == KErrNotFound)
+		User::Leave(KErrNotFound);
+	
+	HBufC8* headerBuf = hdrStart.Mid(0, offset).AllocLC();
+
+	// now find the body
+	TPtrC8 bodyStart;
+	bodyStart.Set(hdrStart.Mid(offset + hdrSep.Length()));
+
+	offset = bodyStart.Find(*iBoundary);
+	if (offset == KErrNotFound)
+		User::Leave(KErrNotFound);
+
+	HBufC8* bodyBuf = bodyStart.Mid(0, offset).AllocLC();
+	
+	CPushMessage* pm = CPushMessage::NewL( headerBuf,  bodyBuf);
+	CleanupStack::Pop(2, headerBuf);  // bodyBuf, headerBuf
+	return pm;
+	}
+