/*
* 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);
}