/*

* Copyright (c) 2007-2009 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:   This module contains the implementation of CIAUpdateSession class 

*                member functions.

*

*/

// INCLUDE FILES

#include <w32std.h>

#include <apgtask.h>

#include <iaupdateparameters.h>

#include <iaupdateresult.h>

#include "iaupdatesession.h"

#include "iaupdateserver.h"

// Parameters are transmitted from the client side to the server

#include "iaupdatetools.h"

#include "iaupdateclientdefines.h"

#include "iaupdateappui.h"

#include "iaupdatelauncheruids.h"

#include "iaupdatedebug.h"

// CONSTANTS

const TSecureId KSIDBackgroundChecker = 0x200211f4;

const TSecureId KSIDLauncher = KIAUpdateLauncherUid;

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// CIAUpdateSession::CIAUpdateSession

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

CIAUpdateSession::CIAUpdateSession()

    {

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::CIAUpdateSession()");

    iEikEnv = CEikonEnv::Static();

    }

// -----------------------------------------------------------------------------

// CIAUpdateSession::CIAUpdateSession

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

CIAUpdateSession::~CIAUpdateSession()

    {

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::~CIAUpdateSession() begin");    

    CIAUpdateAppUi* appUi = 

        static_cast<CIAUpdateAppUi*>( iEikEnv->EikAppUi() );

    if ( appUi ) 

        {

    	appUi->HandleObserverRemoval();

        }

    delete iMessage;

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::~CIAUpdateSession() end");  

    }

// -----------------------------------------------------------------------------

// CIAUpdateSession::ServiceL

// Handles the received message.

// (other items were commented in a header).

// -----------------------------------------------------------------------------

//

void CIAUpdateSession::ServiceL( const RMessage2& aMessage )

    {

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::ServiceL() begin");

    // Dispatch the message in trap harness.

    TRAPD( result, HandleRequestL( aMessage ) );

    // If HandleRequest Left, the message has to be completed

    // here. Otherwise, the RequestCompleted callback will be called

    // when the operations finishes

    if ( result != KErrNone )   

        {

        IAUPDATE_TRACE_1("[IAUPDATE] HandleRequestL leave with error: %d", result );

        aMessage.Complete( result );

        } 

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::ServiceL() end");

    }

// -----------------------------------------------------------------------------

// CIAUpdateSession::ServiceError

// Called back by the server framework if this sessions RunL function returns an

// error.

// (other items were commented in a header).

// -----------------------------------------------------------------------------

//

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

    {

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::ServiceError() begin");

    IAUPDATE_TRACE_1("[IAUPDATE] error code: %d", aError );

    // A bad descriptor error implies a badly programmed client, so panic it;

    // otherwise use the default handling (report the error to the client)

    if ( aError == KErrBadDescriptor )

        {

        //PanicClient( aMessage, ECIAUpdatePanicBadDescriptor );

        }

    CAknAppServiceBase::ServiceError( aMessage, aError );   

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::ServiceError() end");

    }

// -----------------------------------------------------------------------------

// CIAUpdateSession::CreateL

// Completes construction of this server-side client session object.

// (other items were commented in a header).

// -----------------------------------------------------------------------------

//

void CIAUpdateSession::CreateL()

    {

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::CreateL() begin");

    CAknAppServiceBase::CreateL();   

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::CreateL() end");

    }

// -----------------------------------------------------------------------------

// CIAUpdateSession::RequestCompleted

// @see MIAUpdateRequestObserver::RequestCompleted

// -----------------------------------------------------------------------------

//

void CIAUpdateSession::RequestCompleted( CIAUpdateResult* aResult, 

                                         TInt aCountOfAvailableUpdates,  

                                         TBool aUpdateNow, 

                                         TInt aError )

    {

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::RequestCompleted() begin");

    IAUPDATE_TRACE_1("[IAUPDATE] error code: %d", aError );

    if ( !iMessage ) //be sure that there is still message to complete

        {

        IAUPDATE_TRACE("[IAUPDATE] No message to complete");

        IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::RequestCompleted() end");

        return;

        }

    IAUpdateClientDefines::TIAUpdateServerFunctions functionId =

        static_cast<IAUpdateClientDefines::TIAUpdateServerFunctions>( iMessage->Function() );

    TInt error( KErrNone );       

    switch( functionId )

        {

        case IAUpdateClientDefines::EIAUpdateServerCheckUpdates:

            {

            TPckg<TInt> availableUpdates( aCountOfAvailableUpdates ); 

            TPtr8 ptr1( availableUpdates );

            TRAP( error, iMessage->WriteL( 1, ptr1 ) );

            break;	

            }

        case IAUpdateClientDefines:: EIAUpdateServerShowUpdateQuery:

            {

            TPckg<TInt> updateNow( aUpdateNow ); 

            TPtr8 ptr1( updateNow );

            TRAP( error, iMessage->WriteL( 1, ptr1 ) );

            break;	

            }

        case IAUpdateClientDefines::EIAUpdateServerShowUpdates:

            {

            TPckg<TInt> successCount( aResult->SuccessCount() ); 

            TPtr8 ptr1( successCount ); 

            TPckg<TInt> failCount( aResult->FailCount() );

            TPtr8 ptr2( failCount );

            TPckg<TInt> cancelCount( aResult->CancelCount() );

            TPtr8 ptr3( cancelCount );

            TRAP( error,

                  iMessage->WriteL( 1, ptr1 );

                  iMessage->WriteL( 2, ptr2 );

                  iMessage->WriteL( 3, ptr3 ); );            

            break;	

            }

        case IAUpdateClientDefines::EIAUpdateServerStartedByLauncher:

            break;    

        default:

            // We should never come here.

            break;

        }            

    if ( error == KErrNone )

        {

        // Writing of the data in to the message went ok.

        // So, nothing to inform about that.

        // Insert possible error code of the update operation.

        error = aError;

        }

    delete aResult;

    aResult = NULL;

    iMessage->Complete( error );

    delete iMessage;

    iMessage = NULL;

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::RequestCompleted() end");

    }

// -----------------------------------------------------------------------------

// CIAUpdateSession::Server

// Returns reference to the server.

// (other items were commented in a header).

// -----------------------------------------------------------------------------

//

CIAUpdateServer& CIAUpdateSession::Server()

    {

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::Server()");

    return *static_cast<CIAUpdateServer*>( const_cast<CServer2*>

                                         ( CSession2::Server() ) );

    }

// -----------------------------------------------------------------------------

// CIAUpdateSession::HandleRequestL

// Handles the request.

// (other items were commented in a header).

// -----------------------------------------------------------------------------

//

void CIAUpdateSession::HandleRequestL( const RMessage2& aMessage )

    {

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::HandleRequestL() begin");    

    CIAUpdateAppUi* appUi = 

        static_cast<CIAUpdateAppUi*>( iEikEnv->EikAppUi() );     

    // First value is the function number

    IAUpdateClientDefines::TIAUpdateServerFunctions functionId =

        static_cast<IAUpdateClientDefines::TIAUpdateServerFunctions>( aMessage.Function() );

    IAUPDATE_TRACE_1("[IAUPDATE] function id: %d", functionId );

    if ( functionId == IAUpdateClientDefines::EIAUpdateServerCancel )  

        {

        appUi->PotentialCancel();

        if ( iMessage ) //complete possible ongoing request

            {

        	iMessage->Complete( KErrCancel );

        	delete iMessage;

        	iMessage = NULL;  

            }

        // Because cancel is sent synchronously from the client side,

        // aMessage is different than the iMessage for other operation

        // that is currently going on asynchronously.

        // So, RequestCompleted above closed that connection.

        // Now, inform the caller of the cancel operation

        // that cancellation was success.

        aMessage.Complete( KErrNone );

        IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::HandleRequestL() end");

    	return;

        }

    if ( functionId == IAUpdateClientDefines::EIAUpdateServerToForeground )  

        {

        appUi->HandleClientToForegroundL();

        aMessage.Complete( KErrNone );

        IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::HandleRequestL() end");

        return;

        }

    if ( functionId == IAUpdateClientDefines::EIAUpdateServerSendWgId )  

        {

        TPckgBuf<TInt> wgIdPkg( 0 );

        aMessage.ReadL( 0, wgIdPkg ); 

        TInt wgId = wgIdPkg(); 

        appUi->SetClientWgId( wgId );

        aMessage.Complete( KErrNone );

        IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::HandleRequestL() end");

        return;

        }

    if ( iMessage )

        {

        // This session is used in a wrong way because the

        // old operation has not been completed before new one is

        // started.

        User::Leave( KErrInUse );

        }

    iMessage = new( ELeave ) RMessage2( aMessage );

    if ( functionId == IAUpdateClientDefines::EIAUpdateServerStartedByLauncher )

        {

        TPckgBuf<TBool> refreshFromNetworkDeniedPkg( 0 );

        aMessage.ReadL( 0, refreshFromNetworkDeniedPkg ); 

        TBool refreshFromNetworkDenied = refreshFromNetworkDeniedPkg(); 

    	appUi->StartedByLauncherL( *this, refreshFromNetworkDenied );

        }

    else if ( functionId == IAUpdateClientDefines::EIAUpdateServerShowUpdateQuery )  

        {

        // Handle the update query dialog request

        TUint id = aMessage.SecureId().iId;

    	appUi->ShowUpdateQueryRequestL( *this, id ); 

        }

    else

        {

        // Handle update operation related requests.

        HBufC8* data = NULL;

        data = HBufC8::NewLC( aMessage.GetDesLength( 0 ) );

        TPtr8 ptr( data->Des() );            

        aMessage.ReadL( 0, ptr );

        CIAUpdateParameters* params( CIAUpdateParameters::NewLC() );

        IAUpdateTools::InternalizeParametersL( *params, *data );

        // Do not destroy, because ownership of params is transferred

        // below.

        CleanupStack::Pop( params );

        CleanupStack::PopAndDestroy( data );

        if ( aMessage.SecureId() != KSIDBackgroundChecker )      

            {

            // other processes than backroundchecker are not allowed to cause refresh from network 

            params->SetRefresh( EFalse );

            }

        switch( functionId )

            {

            case IAUpdateClientDefines::EIAUpdateServerCheckUpdates:

                appUi->CheckUpdatesRequestL( *this, params );

                break;

            case IAUpdateClientDefines::EIAUpdateServerShowUpdates:

                appUi->ShowUpdatesRequestL( *this, params );

                break;

            default:

            // We should never come here

                delete params;

                params = NULL;

                break;

            }    

        }

     IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::HandleRequestL() end"); 

     }    

// -----------------------------------------------------------------------------

// CIAUpdateSession::SecurityCheckL

// Virtual framework function that is called on receipt of a message from the

// client. This allows the service implementation to define a security policy

// for messages from the client.

// (other items were commented in a header).

// -----------------------------------------------------------------------------

//

CPolicyServer::TCustomResult CIAUpdateSession::SecurityCheckL( const RMessage2& aMsg,

                                                             TInt& /*aAction*/,

                                                             TSecurityInfo& /*aMissing*/ )

    {

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::SecurityCheckL() begin");

    CPolicyServer::TCustomResult result = CPolicyServer::EFail; 

    switch ( aMsg.Function() )

        {

        case IAUpdateClientDefines::EIAUpdateServerStartedByLauncher:

            if ( aMsg.SecureId() == KSIDLauncher )  

                {

                result = CPolicyServer::EPass;

                }

            break;

        case IAUpdateClientDefines::EIAUpdateServerCheckUpdates:

        case IAUpdateClientDefines::EIAUpdateServerShowUpdates:

        // no capability check is needed because SID is checked later

        // that means that only bacgkroundchecker is allowed to initiate network refresh

        case IAUpdateClientDefines::EIAUpdateServerShowUpdateQuery:

        case IAUpdateClientDefines::EIAUpdateServerCancel:

        case IAUpdateClientDefines::EIAUpdateServerToForeground:

        case IAUpdateClientDefines::EIAUpdateServerSendWgId:

        // No capabilities needed

            result = CPolicyServer::EPass;

            break;

        default:

            // Not recognized message

            result = CPolicyServer::EFail;

        }

    IAUPDATE_TRACE_1("[IAUPDATE] result: %d", result );

    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateSession::SecurityCheckL() end");

    return result; 

    }

//  End of File