/*

* Copyright (c) 2004-2009 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: 

* fstokenserver.cpp

*

*/

#include "fsserver.h"

#include "fstokenutil.h"

#include "cfskeystoreserver.h"

#include "CKeyStoreSession.h"

#include "filecertstore.h"

#include "CCertStoreSession.h"

#include "CFSCertAppsServer.h"

#include "CCertAppsSession.h"

#include "FSResources.h"

#include "FSDialog.h"

#include "tokenserverdebug.h"

#include "fstokenservername.h"

// CTokenServerSession /////////////////////////////////////////////////////////

CTokenServerSession::CTokenServerSession()

	{

	}

inline CTokenServer& CTokenServerSession::Server()

	{

	return static_cast<CTokenServer&>(const_cast<CServer2&>(*CSession2::Server()));

	}

void CTokenServerSession::CreateL()

	{

	Server().AddSession();

	}

CTokenServerSession::~CTokenServerSession()

	{

	Server().DropSession();

	}

/**

 * Handle a client request.  Leaving is handled by

 * CTokenServerSession::ServiceError() which reports the error code to the

 * client.

 */

void CTokenServerSession::ServiceL(const RMessage2& aMessage)

	{

#ifdef _DEBUG

	// OOM testing

	switch (aMessage.Function())

		{

		case EStartOOMTest:

			TokenServerDebug::StartOOMTest();

			aMessage.Complete(KErrNone);

			return;

		case EIncHeapFailPoint:

			TokenServerDebug::IncHeapFailPoint();

			aMessage.Complete(KErrNone);

			return;

		case EResetHeapFail:

			TokenServerDebug::ResetHeapFail();

			aMessage.Complete(KErrNone);

			return;

		case EAllocCount:

			aMessage.Complete(User::CountAllocCells());

			return;

		}	

#endif

	DoServiceL(aMessage);

	}

/**

 * Handle an error from ServiceL() A bad descriptor error implies a badly

 * programmed client, so panic it - otherwise report the error to the client.

 */

void CTokenServerSession::ServiceError(const RMessage2& aMessage, TInt aError)

	{

	if (aError==KErrBadDescriptor)

		{

		PanicClient(aMessage, EPanicBadDescriptor);

		}

	CSession2::ServiceError(aMessage, aError);

	}

// CTokenServer ////////////////////////////////////////////////////////////////

inline CTokenServer::CTokenServer() :

	CServer2(0, ESharableSessions)

	{

	}

CServer2* CTokenServer::NewLC()

	{

	CTokenServer* self=new(ELeave) CTokenServer;

	CleanupStack::PushL(self);

	self->ConstructL();

	return self;

	}

CTokenServer::~CTokenServer()

	{

	FSResources::Cleanup();

	FSDialog::Cleanup();

	delete iKeyStoreServer;

	delete iCertStoreServer;

	delete iCertAppsServer;

	}

/**	2nd phase construction - ensure the timer and server objects are running. */

void CTokenServer::ConstructL()

	{

	FSResources::InitialiseL();

	FSDialog::InitialiseL();

	TPtrC serverName(KFSTokenServerName());

		// Naming the server thread after the server helps to debug panics

#ifdef __WINS__

#ifdef SYMBIAN_KEYSTORE_USE_AUTH_SERVER

	serverName.Set(KFSNewTokenServerName());

#endif // SYMBIAN_KEYSTORE_USE_AUTH_SERVER

#endif // __WINS__

	StartL(serverName);

	// Ensure that the server still exits even if the 1st client fails to connect

	iShutdown.ConstructL();

	iShutdown.Start();

	}

/** A new session is being created - cancel the shutdown timer if it was running. */

void CTokenServer::AddSession()

	{

	++iSessionCount;

	iShutdown.Cancel();

	}

/** A session is being destroyed - start the shutdown timer if it is the last session. */

void CTokenServer::DropSession()

	{

	if (--iSessionCount==0)

		{

		iShutdown.Start();

		}

	}

/** Lazily create key store server object. */

CFSKeyStoreServer& CTokenServer::KeyStoreServerL() const

	{

	if (!iKeyStoreServer)

		{

		iKeyStoreServer = CFSKeyStoreServer::NewL();

		}

	return *iKeyStoreServer;

	}

/** Lazily create cert store server object. */

CFSCertStoreServer& CTokenServer::CertStoreServerL() const

	{

	if (!iCertStoreServer)

		{

		iCertStoreServer = CFSCertStoreServer::NewL();

		}

	return *iCertStoreServer;

	}

/** Lazily create cert apps server object. */

CFSCertAppsServer& CTokenServer::CertAppsServerL() const

	{

	if (!iCertAppsServer)

		{

		iCertAppsServer = CFSCertAppsServer::NewL();

		}

	return *iCertAppsServer;

	}

/** Create a new client session. */

CSession2* CTokenServer::NewSessionL(const TVersion& aVersion, const RMessage2& /*aMessage*/) const

	{

	// The token the client wants to talk to is encoded in the major version number

	ETokenEnum token = static_cast<ETokenEnum>(aVersion.iMajor);	

	// The minor version number represents the version of the protocol

	if (aVersion.iMinor != KFSProtolVersion)

		{

		User::Leave(KErrNotSupported);

		}

	CTokenServerSession* result = NULL;

	switch (token)

		{

		case EFileKeyStore:

			result = KeyStoreServerL().CreateSessionL();

			break;

		case EFileCertStore:

			result = CertStoreServerL().CreateSessionL();

			break;

		case EFileCertApps:

			result = CertAppsServerL().CreateSessionL();

			break;

		default:

			User::Leave(KErrNotSupported);

			break;

		}

	return result;

	}

// CShutdown ///////////////////////////////////////////////////////////////////

inline CShutdown::CShutdown() :

	CTimer(-1)

	{

	CActiveScheduler::Add(this);

	}

inline void CShutdown::ConstructL()

	{

	CTimer::ConstructL();

	}

inline void CShutdown::Start()

	{

	After(KServerShutdownDelay);

	}

/** Initiate server exit when the timer expires. */

void CShutdown::RunL()

	{

	CActiveScheduler::Stop();

	}

// Server startup //////////////////////////////////////////////////////////////

/**

 * Perform all server initialisation, in particular creation of the scheduler

 * and server and then run the scheduler.

 */

static void RunServerL()

	{

	TPtrC serverName(KFSTokenServerName());

	// Naming the server thread after the server helps to debug panics

#ifdef __WINS__

#ifdef SYMBIAN_KEYSTORE_USE_AUTH_SERVER

	serverName.Set(KFSNewTokenServerName());

#endif // SYMBIAN_KEYSTORE_USE_AUTH_SERVER

#endif // __WINS__

	User::LeaveIfError(User::RenameThread(serverName));

	// Create and install the active scheduler we need

	CActiveScheduler* s=new(ELeave) CActiveScheduler;

	CleanupStack::PushL(s);

	CActiveScheduler::Install(s);

	// Create the server and leave it on the cleanup stack

	CTokenServer::NewLC();

	// Before starting the server, notify client that initialisation is

	// complete.

	// (note that WINS on EKA1 uses threads since it lacks process emulation)

	RProcess::Rendezvous(KErrNone);

	// Ready to run

	CActiveScheduler::Start();

	// Cleanup the server and scheduler

	CleanupStack::PopAndDestroy(2);

	}

/** Server process entry point. */

TInt E32Main()

	{

#ifdef _DEBUG

	TokenServerDebug::HeapCheckStart();

#endif

	CTrapCleanup* cleanup=CTrapCleanup::New();

	TInt r=KErrNoMemory;

	if (cleanup)

		{

		TRAP(r,RunServerL());

		delete cleanup;

		}

#ifdef _DEBUG

	TokenServerDebug::HeapCheckEnd();

#endif

	return r;

	}

// Only for wins on EKA1 - WINS loads a DLL and starts a new thread

// by calling WinsMain which does the "server" startup