diff -r 5cc91383ab1e -r 7333d7932ef7 installationservices/swcomponentregistry/scrhelper/source/scrhelperserver.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/installationservices/swcomponentregistry/scrhelper/source/scrhelperserver.cpp	Tue Aug 31 15:21:33 2010 +0300
@@ -0,0 +1,212 @@
+/*
+* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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 "scrhelpercommon.h"
+#include "scrhelperserver.h"
+#include <e32cmn.h>
+#include <e32debug.h>
+#include <usif/scr/scrcommon.h>
+
+using namespace Usif;
+
+static const TUint scrHelperRangeCount = 2;
+
+static const TInt scrHelperRanges[scrHelperRangeCount] =
+	{
+	0,							 // Range-0 - 0 to EBaseSession-1. Not used.
+	CScsServer::EBaseSession,	 // Range-1 - EBaseSession to KMaxTInt inclusive.
+	};
+
+static const TUint8 scrHelperElementsIndex[scrHelperRangeCount] =
+	{
+	CPolicyServer::ENotSupported, // Range 0 is not supported.
+	0,							  // Range 1 must come from the SCR Server.
+	};							
+
+static const CPolicyServer::TPolicyElement scrHelperElements[] =
+	{
+	{_INIT_SECURITY_POLICY_S0(KUidScrServer.iUid), CPolicyServer::EFailClient}
+	};
+
+static const CPolicyServer::TPolicy scrHelperPolicy =
+	{
+	CPolicyServer::EAlwaysPass, // Allow all connections
+	scrHelperRangeCount,
+	scrHelperRanges,
+	scrHelperElementsIndex,
+	scrHelperElements,
+	};
+
+/////////////////////
+// CScrHelperServer
+/////////////////////
+
+CScrHelperServer::CScrHelperServer()
+	:	CScsServer(ScrHelperServerVersion(), scrHelperPolicy)
+	{
+	// empty
+	}
+
+CScrHelperServer::~CScrHelperServer()
+	{
+	iFs.Close();
+	}
+
+CScrHelperServer* CScrHelperServer::NewLC()
+	{
+	CScrHelperServer* self = new(ELeave) CScrHelperServer();
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	return self;
+	}
+
+void CScrHelperServer::ConstructL() 
+	{
+	User::LeaveIfError(iFs.Connect());
+	User::LeaveIfError(iFs.ShareProtected());
+
+	StartL(KScrHelperServerName);
+	CScsServer::ConstructL(KScrHelperServerShutdownPeriod);	
+	}
+
+CScsSession* CScrHelperServer::DoNewSessionL(const RMessage2& aMessage)
+/**
+	Implement CScsServer by allocating a new instance of CScrHelperSession.
+
+	@param	aMessage	Standard server-side handle to message.
+	@return				New instance of the SCR Helper session class which is owned by the caller.
+ */
+	{
+	DEBUG_PRINTF(_L8("SCR Helper session creation!"));
+	return CScrHelperSession::NewL(*this, aMessage);
+	}
+
+inline RFs& CScrHelperServer::FileServer()
+	{
+	return iFs;
+	}
+
+/////////////////////
+// CScrHelperSession
+/////////////////////
+
+CScrHelperSession::CScrHelperSession(CScrHelperServer& aServer)
+	:	CScsSession(aServer)
+	{
+	// empty
+	}
+
+CScrHelperSession::~CScrHelperSession()
+	{
+	// empty
+	}
+
+CScrHelperSession* CScrHelperSession::NewL(CScrHelperServer &aServer, const RMessage2& aMessage)
+/**
+	Factory function allocates new instance of CScrSession.
+	
+	@param aServer  SCR Helper Server object.
+	@param aMessage	Standard server-side handle to message. Not used.
+	@return			Newly created instance of CScrHelperSession which is owned by the caller.
+ */
+	{
+	(void)aMessage; // Make the compiler happy in release mode
+	CScrHelperSession* self = new (ELeave) CScrHelperSession(aServer);
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+TBool CScrHelperSession::DoServiceL(TInt aFunction, const RMessage2& aMessage)
+	{
+	TScrHelperServerMessages f = static_cast<TScrHelperServerMessages>(aFunction);
+	RFs& fs =  static_cast<CScrHelperServer*>(&iServer)->FileServer();
+	
+	switch (f)
+		{
+		case EGetDatabaseFileHandle:
+			GetFileHandleL(fs, aMessage, KScrDatabaseFilePath);
+			break;
+		case EGetJournalFileHandle:
+			GetFileHandleL(fs, aMessage, KScrJournalFilePath);
+			break;
+		default:
+			User::Leave(KErrNotSupported);
+		}
+	//RMessage2 object is closed by both TransferToClient() and SCS framework.
+	//return EFalse to prevent SCS to close the message object.
+	return EFalse;
+	}
+
+void CopyDbFromROMToSystemL(RFs& aFs, const TDesC& aTargetPath)
+	{
+	CFileMan* fileManager = CFileMan::NewL(aFs);
+	CleanupStack::PushL(fileManager);
+	User::LeaveIfError(fileManager->Copy(KScrDbRomPath, aTargetPath, 0));
+
+	// Reset the read-only attribute on the copied file
+	User::LeaveIfError(aFs.SetAtt(aTargetPath, 0, KEntryAttReadOnly));
+	CleanupStack::PopAndDestroy(fileManager);
+	}
+
+void CScrHelperSession::GetFileHandleL(RFs& aFs, const RMessage2& aMessage, const TDesC& aFileName)
+	{
+	DEBUG_PRINTF2(_L("Returning file handle of %S."), &aFileName);
+	RBuf filePath;
+	filePath.CreateL(aFileName.Length());
+	filePath.CleanupClosePushL();
+	filePath.Copy(aFileName);
+	filePath[0] = aFs.GetSystemDriveChar();
+	TInt err = aFs.MkDirAll(filePath);
+	if(KErrNone != err && KErrAlreadyExists != err)
+		{
+		DEBUG_PRINTF3(_L("An error (%d) occured while making all directories of %S."), err, &filePath);
+		User::Leave(err);
+		}
+	
+	RFile file;
+	TEntry entry;
+
+	if(KErrNone == aFs.Entry(filePath, entry))
+		{ // The file exists, just open it.
+		User::LeaveIfError(file.Open(aFs, filePath, EFileShareAny|EFileWrite));
+		}    
+	else
+		{ // The file doesn't exist. First, check if the requested file is database or journal file.
+		if(KScrDatabaseFilePath() == aFileName)
+			{ // This is the database file. Copy the default one into the requested location.
+			DEBUG_PRINTF(_L8("SCR database file doesn't exist. It is being copied from ROM"));
+			CopyDbFromROMToSystemL(aFs, filePath);
+			 // Then, open the file.
+			User::LeaveIfError(file.Open(aFs, filePath, EFileShareAny|EFileWrite));
+			}
+		else
+			{ // This is the journal file, simply create an empty file.
+			User::LeaveIfError(file.Create(aFs, filePath, EFileShareAny|EFileWrite));
+			}
+		}
+	CleanupStack::PopAndDestroy(&filePath);
+	CleanupClosePushL(file);
+	
+	// Store the RFile handle into the package buffer in slot 0 and complete the message with the RFs handle
+	User::LeaveIfError(file.TransferToClient(aMessage, 0));
+	ASSERT(aMessage.IsNull());  // The message should have been completed
+
+	CleanupStack::PopAndDestroy(&file);
+	}