--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/email/imap4mtm/imapsession/src/cimapfetchflags.cpp	Thu Dec 17 08:44:11 2009 +0200
@@ -0,0 +1,189 @@
+// 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 "cimapfetchflags.h"
+
+#include "cimapsessionconsts.h"
+#include "moutputstream.h"
+#include "imappaniccodes.h"
+#include "cimaplogger.h"
+
+_LIT8(KCommandFetchFlags, "%d UID FETCH %S (UID FLAGS)\r\n");
+
+CImapFetchFlags*  CImapFetchFlags::NewL(CImapFolderInfo* aSelectedFolderData, TInt aLogId, const TDesC8& aSequenceSet, RArrayMessageFlagInfo& aOutMessageFlagInfo)
+	{
+	CImapFetchFlags* self = new (ELeave) CImapFetchFlags(aSelectedFolderData, aLogId, aOutMessageFlagInfo);
+	CleanupStack::PushL(self);
+	self->ConstructL(aSequenceSet);
+	CleanupStack::Pop(self);
+	return self;
+	}
+		
+CImapFetchFlags::CImapFetchFlags(CImapFolderInfo* aSelectedFolderData, TInt aLogId, RArrayMessageFlagInfo& aOutMessageFlagInfo) 
+	: CImapCommandEx(aSelectedFolderData, aLogId)
+	, iOutMessageFlagInfo(aOutMessageFlagInfo)
+	{
+	}
+	
+CImapFetchFlags::~CImapFetchFlags()
+	{
+	delete iSequenceSet;
+	}
+	
+void CImapFetchFlags::ConstructL(const TDesC8& aSequenceSet)
+	{
+	iSequenceSet = aSequenceSet.AllocL();
+	}
+/** 
+Formats and sends the IMAP FETCH FLAGS command.
+@param aTagId Command sequence id which will be send along with the IMAP command.
+@param aStream A wrapper for the outbound stream of a connected socket, using which 
+the command will be send to the server
+*/	
+void CImapFetchFlags::SendMessageL(TInt aTagId, MOutputStream& aStream)
+	{
+	iTagId = aTagId;
+	
+	TInt bufLength = KCommandFetchFlags().Length();
+	bufLength += TagLength(aTagId);
+	bufLength += iSequenceSet->Length();
+	
+	__ASSERT_DEBUG(iOutputBuffer==NULL, TImapServerPanic::ImapPanic(TImapServerPanic::ECommandOutputBufferNotNull));
+	iOutputBuffer = HBufC8::NewL(bufLength);	
+	iOutputBuffer->Des().Format(KCommandFetchFlags, aTagId, iSequenceSet);	
+	
+	//send the command to the server
+	aStream.SendDataReq(*iOutputBuffer);		
+	}
+
+/**
+Called after a line of untagged response data has been received. 
+@param	aLine	The line to be parsed.
+@return ECompleteUntagged if the line is a recognised untagged response
+		ENotRecognised for any other response 
+*/
+CImapCommand::TParseBlockResult CImapFetchFlags::ParseUntaggedResponseL()
+	{
+	TParseBlockResult result = ENotRecognised;
+	
+	// Is this a fetch flags response?
+	// Check for Sequence Number followed by "FETCH"
+	
+	TPtrC8 part1 = GetNextPart(); // returns KNullDesC8 if there is no part available
+	TPtrC8 part2 = GetNextPart(); // returns KNullDesC8 if there is no part available
+	
+	// Is part1 a Sequence Number?
+	TInt sequenceNumber = 0;
+	TLex8 lex(part1);
+	if (lex.Val(sequenceNumber) == KErrNone)
+		{
+		// part1 is a Sequence Number.  Now check part2 - is it "FETCH"?
+
+		if(part2.CompareF(KImapTxtFetch) == 0)
+			{
+			ProcessFetchFlagsResponseL();
+			result = ECompleteUntagged;
+			}
+		}
+	
+	// If ProcessFetchFlagsResponseL() is not called then result remains ENotRecognised			
+	return result;
+	}
+	
+void CImapFetchFlags::ProcessFetchFlagsResponseL()
+	{
+	// Each untagged response is of the form 
+	// 		* 23 FETCH (FLAGS (\Seen) UID 4827313)
+	// Where 23 is the message sequence number.  Discard this.
+	// And 4827313 is the message uid.  Keep this.
+	//
+	
+	TMessageFlagInfo messageFlagInfoEntry;
+
+	// Strip the opening and closing brackets
+	TInt remainderLength = iUnparsedData.Length();
+	if (remainderLength < 2)
+		{
+		// expecting at least '(' and ')'
+		CorruptDataL();
+		}
+	if (iUnparsedData[0] != '(' || iUnparsedData[remainderLength-1] != ')')
+		{
+		CorruptDataL();
+		}
+		
+	iUnparsedData.Set(iUnparsedData.Mid(1, remainderLength-2));
+	
+	// The UID FETCH and UID STORE commands expect responses to contain 
+	// both FLAGS and UID data items.
+	//
+	// If a FETCH response is received that does not contain the UID data item
+	// then it is an unsolicited server event and should not be recorded in the result set.
+	
+	TBool foundFlags = EFalse;
+	TBool foundUid = EFalse;
+	
+	while ( !(foundFlags && foundUid) )
+		{
+		TPtrC8 dataItem = GetNextPart();
+				
+		if (dataItem.CompareF(KImapTxtFlags) == 0)
+			{
+			iUnparsedData.Set( messageFlagInfoEntry.ParseFlagsL(Remainder()) );
+			foundFlags = ETrue;
+			}
+		else if (dataItem.CompareF(KImapTxtUid) == 0)
+			{
+			TPtrC8 uidString = GetNextPart();
+			
+			TInt err = messageFlagInfoEntry.SetMessageUid(uidString);
+			if (err != KErrNone)
+				{
+				CorruptDataL();
+				}
+			foundUid = ETrue;
+			}
+		else if (dataItem.Length() == 0)
+			{
+			// No more data items
+			// 
+			break; // from while loop
+			}
+		else
+			{
+			//
+			__LOG_FORMAT((iLogId, "CImapFetchFlags::ProcessFetchFlagsResponseL() - Unexpected data item: %S", &dataItem));
+			CorruptDataL();
+			}
+		}
+		
+	if (foundFlags && foundUid)
+		{
+		// A genuine response to the UID FETCH or UID STORE was received
+		iOutMessageFlagInfo.AppendL(messageFlagInfoEntry);
+		}
+	else if (foundFlags)
+		{
+		// An unsolicited server event was received - record this so that a sync will be triggered 
+		// after this command has completed.
+		__LOG_TEXT(iLogId, "CImapFetchFlags::ProcessFetchFlagsResponseL() - Found unsolicited FETCH FLAGS");
+		SetMessageFlagsChanged();
+		}
+	else
+		{
+		// Was expecting at least the FLAGS data item.
+		CorruptDataL();
+		}
+	}