/*

* 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:   Handels IAD self update and starting the IAD process 

*                after self update.

*

*/

#include <apgcli.h>     // RApaLsSession

#include <apacmdln.h>   // CApaCommandLine

#include <apgtask.h>

#include <apgwgnam.h>

#include <e32std.h>

#include <ecom/ecom.h>

#include <swi/sisregistrysession.h>

#include <swi/sisregistryentry.h>

#include <catalogsuids.h>

#include "iaupdatermngr.h"

#include "iaupdaterinstaller.h"

#include "iaupdaterdialog.h"

#include "iaupdaterdefs.h"

#include "iaupdaterfilelistfile.h"

#include "iaupdaterfilelist.h"

#include "iaupdaterfileinfo.h"

#include "iaupdaterresultsfile.h"

#include "iaupdaterresult.h"

#include "iaupdateridentifier.h"

#include "iaupdatedebug.h"

// ======== LOCAL FUNCTIONS ========

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

// Maximum time (in microseconds) that ECOM is waited.

const TInt KMaxEcomWait( 3000000 );

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

// CIAUpdaterMngr::NewL() 

// 

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

//

CIAUpdaterMngr* CIAUpdaterMngr::NewL() 

    {

    CIAUpdaterMngr* self = CIAUpdaterMngr::NewLC();

    CleanupStack::Pop( self );

    return self;

    }

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

// CIAUpdaterMngr::NewLC() 

// 

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

//

CIAUpdaterMngr* CIAUpdaterMngr::NewLC() 

    {

    CIAUpdaterMngr* self = new (ELeave) CIAUpdaterMngr;

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;	

    }

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

// CIAUpdaterMngr::ConstructL()

// 

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

//

void CIAUpdaterMngr::ConstructL()

    {

    IAUPDATE_TRACE("[IAUpdater] CIAUpdaterMngr::ConstructL start");

    iResultsFile = CIAUpdaterResultsFile::NewL();

    IAUPDATE_TRACE("[IAUpdater] CIAUpdaterMngr::ConstructL end");

    }

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

// CIAUpdaterMngr::~CIAUpdater()

//

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

//

CIAUpdaterMngr::~CIAUpdaterMngr()

    {

    IAUPDATE_TRACE("[IAUpdater] CIAUpdaterMngr::~CIAUpdaterMngr start");

    delete iIAInstaller;        

    delete iResultsFile;

    iWsSession.Close();

    iFs.Close();

    IAUPDATE_TRACE("[IAUpdater] CIAUpdaterMngr::~CIAUpdaterMngr end");

    }

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

// CIAUpdaterMngr::ProcessInstallingL()

// 

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

//

void CIAUpdaterMngr::ProcessInstallingL( TIAUpdaterStartParams& aStartParams )

    {

    IAUPDATE_TRACE("[IAUpdater] ProcessInstallingL");

    // Reset member variables

    iInstallError = KErrNone;

    iEcomPluginInstalled = EFalse;

    // Initialize the results file for operations

    // Just in case there would be some old information left.

    iResultsFile->Reset();    

    // Set the results file path.

    iResultsFile->SetFilePathL( aStartParams.iResultFilePath );

    // Start actual operations.

    // Get the file info data from the file.

    CIAUpdaterFileListFile* listFile( CIAUpdaterFileListFile::NewLC() );

    // The correct path was given in the starting parameters.

    // Set this path. So, the object can read its data from the correct file.

    IAUPDATE_TRACE_1("[IAUpdater] ProcessInstallingL set path: %S", 

                     &aStartParams.iInitFilePath);

    listFile->SetFilePathL( aStartParams.iInitFilePath );

    // Read data from the defined file.

    listFile->ReadDataL();

    // Remove the file, because all the information from the list file

    // is now available in the lisFile object. Then, it will not be reused 

    // if this operation leaves and iaupdate is restarted later.

    IAUPDATE_TRACE_1("[IAUpdater] ProcessInstallingL fileRemove: %S", 

                     &listFile->FilePath());

    User::LeaveIfError( listFile->RemoveFile() );

    IAUPDATE_TRACE("[IAUpdater] File removed.");

    // Now, get the info that is required for the dialog.

    // Notice, that we keep the index value to constant. 

    // This application supposes that all the installable

    // bundles are part of the one same packet. So, indexing

    // is not changed.

    TInt KIndex( listFile->PckgStartIndex() );

    const TInt KTotalCount( listFile->TotalPckgCount() );

    // Check if the dialogs should be shown

    const TBool KSilent( listFile->Silent() );

    TInt count( listFile->FileList().Count() );

    TBool showing( EFalse );

    User::LeaveIfError( iFs.Connect() );

    User::LeaveIfError( iWsSession.Connect( iFs ) );

    if ( count > 0 )

        {

        TInt nameIndex( 0 );

        for ( TInt i = 0; i < count; ++i )

            {

            IAUPDATE_TRACE_1("[IAUpdater] FileList: %d", i);

            iCurrentFileList = listFile->FileList()[ i ];

            if ( iInstallError == KErrNone )

                {

                IAUPDATE_TRACE("[IAUpdater] No errors. Continue install.");

                if ( !KSilent && i == nameIndex )

                    {

                    IAUPDATE_TRACE("[IAUpdater] Show dialog");

                    // If the dialog should be shown, then use the constant values for the

                    // indexing and total count.

                    // Search for the bundle name. Hidden names are not shown, so the first

                    // not hidden name will be shown. Notice, that here we think that the name

                    // that describes also the hidden items is non hidden item after those hidden

                    // items.

                    for ( TInt j = nameIndex; j < count; ++j )

                        {

                        IAUPDATE_TRACE_1("[IAUpdater] nameIndex: %d", j);

                        CIAUpdaterFileList* list( listFile->FileList()[ j ] );

                        if ( !list->Hidden() 

                             || j + 1 == count && !showing )

                            {

                            if ( !KSilent && showing )

                                {

                                IAUPDATE_TRACE("[IAUpdater] Cancel waiting note");

                                // Stop showing wait note before starting new note.       

                                dialogs->CancelWaitingNoteL();

                                showing = EFalse;

                                }

                            // Show dialog if the item is not hidden or 

                            // if all the items are hidden and no dialog is showing, then show

                            // the last one.

                            // The last item is always thought as non hidden because it is the main item.

                            // All other items before it are items that the main item depends on.

                            // Show waiting note because we are starting the install operation

                            IAUPDATE_TRACE_1("[IAUpdater] Show new waiting note: %S", 

                                             &list->BundleName());

                            dialogs->

                                ShowWaitingNoteL( list->BundleName(), 

                                                  KIndex, KTotalCount );                    

                            nameIndex = j + 1;

                            showing = ETrue;

                            break;

                            }

                        }

                    }

                // Delete old installer. So, the new installer will be configured 

                // with correct values.

                delete iIAInstaller; 

                iIAInstaller = NULL;            

                iIAInstaller = CIAUpdaterInstaller::NewL( iFs, *this );

                ProcessSISFilesL( *iCurrentFileList );

                // Notice, that this is synchronous installation that will wait until the

                // active install operation has finished its job. 

                // Uses, CActiveSchedulerWait.

                // So, be cautious about nested loops. 

                iIAInstaller->StartInstallingL();                     

                }

            else if ( iInstallError == KErrCancel )

                {

                // Because cancel occurred during the last install,

                // cancel installation of other items. 

                // Set error code as KErrCancel for remaining items.

                // Setting of these parameters is so quick operation,

                // that do not show separate dialogs for this after

                // the possible shown dialog is closed below.

                IAUPDATE_TRACE("[IAUpdater] Cancel occurred. So, do not try to install.");

                SetProcessParametersL( KErrCancel );

                }

            else

                {

                // Because an error occurred during the last install,

                // abort installation of other items. 

                // Set error code as KErrAbort for remaining items.

                // Setting of these parameters is so quick operation,

                // that do not show separate dialogs for this after

                // the possible shown dialog is closed below.

                IAUPDATE_TRACE("[IAUpdater] Error occurred. So, do not try to install.");

                SetProcessParametersL( KErrAbort );

                }

            }

        IAUPDATE_TRACE("[IAUpdater] Finished installation.");

        if ( iEcomPluginInstalled )

            {

            IAUPDATE_TRACE("[IAUpdater] Wait for the ECOM.");

            // Ecom plugin was installed during the update flow.

            // Wait for the ECOM to finish indexing of its plugins.

            EcomWaiterL();

            }

        }

    // Increase the index by one for the result. 

    // Notice, that here the index may become as great as KTotalCount but

    // it is up to the user of the results to check this later.

    iResultsFile->SetPckgStartIndex( KIndex + 1 );

    iResultsFile->SetTotalPckgCount( KTotalCount );

    // Look at is there iaupdate instance running

    //

    TApaTaskList tasklist( iWsSession );   

    TApaTask task = tasklist.FindApp( TUid::Uid( IAUpdaterDefs::KIADUpdateUid3 ) );

    IAUPDATE_TRACE("[IAUpdater] Final process checks");

    // Result data is not written if user exit (end key pressed) and  

    // there is not iaupdate running

    if ( !iUserExit || task.Exists() )

        {

        IAUPDATE_TRACE("[IAUpdater] Write results file data");

    	iResultsFile->WriteDataL();

        }

    // Iaupdate is restarted only when there is not running instance.  

    // When user exit (end key pressed) new iaupdate is not launched     

    if ( !iUserExit && !task.Exists() )

        {

        IAUPDATE_TRACE("[IAUpdater] Start IAUpdate UI process");

    	StartIADProcessesL();

        }

    if ( !KSilent && showing )

        {

        IAUPDATE_TRACE("[IAUpdater] Stop showing dialog.");

        // Stop showing wait note because we have finished this installation.       

        TRAP_IGNORE( dialogs->CancelWaitingNoteL() );

        CleanupStack::PopAndDestroy( dialogs );

        }

    CleanupStack::PopAndDestroy( listFile );

    listFile = NULL;

    if ( iUserExit )

        {

        IAUPDATE_TRACE("[IAUpdater] User exit");

        User::Leave( IAUpdaterDefs::KIAUpdaterShutdownRequest );

        }   

    IAUPDATE_TRACE("[IAUpdater] CIAUpdaterMngr::ProcessInstallingL end");

    }

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

// CIAUpdaterMngr::UserCancel

//

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

//	

void CIAUpdaterMngr::UserCancel()

    {

    IAUPDATE_TRACE("[IAUpdater] UserCancel() start");

    if ( iIAInstaller )

        {

    	iIAInstaller->CancelOperation();

        }

    IAUPDATE_TRACE("[IAUpdater] UserCancel() end");    

    }

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

// CIAUpdaterMngr::UserExit()

//

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

//	

void CIAUpdaterMngr::UserExit()

    {

    IAUPDATE_TRACE("[IAUpdater] UserExit() start");

    if ( iIAInstaller )

        {

    	iIAInstaller->CancelOperation();

    	iUserExit = ETrue;

        }

    IAUPDATE_TRACE("[IAUpdater] UserExit() end"); 

    }

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

// CIAUpdaterMngr::ProcessSISFilesL()

//

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

//	

void CIAUpdaterMngr::ProcessSISFilesL( CIAUpdaterFileList& aList )

    { 

    IAUPDATE_TRACE("[IAUpdater] ProcessSISFilesL start");       

    TInt count( aList.FileInfos().Count() );

    for ( TInt i = 0; i < count; ++i )

        {

        CIAUpdaterFileInfo* info( aList.FileInfos()[ i ] );

        const TDesC& sisFileName( info->FilePath() );

        iIAInstaller->AddFileToInstallL( sisFileName );

        }

    IAUPDATE_TRACE("[IAUpdater] ProcessSISFilesL end");        

    }

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

// CIAUpdaterMngr::SetProcessParametersL

// Set installation return parameters for IAD process.

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

//	

void CIAUpdaterMngr::SetProcessParametersL( TInt aErr )

    {    

    IAUPDATE_TRACE_1("[IAUpdater] SetProcessParametersL start: %d", aErr);

    if ( aErr == KErrNone )

        {

        IAUPDATE_TRACE("[IAUpdater] Installation was success");

        // Because self update related item was successfully installed,

        // make sure that the IAD is closed. In certain cases, the

        // installer may not close the IAD. For example, if only

        // NCD Engine is updated but IAD is not, or, if original

        // IAD was in ROM but new update is installed into another

        // drive.

        CloseIADProcessesL();

        // Check if the installed package should be thought as

        // an ecom plugin. The UID value is used for the checking.

        if ( IsEcomPlugin( iCurrentFileList->Identifier().Uid() ) )

            {

            IAUPDATE_TRACE("[IAUpdater] ECOM plugin was installed.");

            iEcomPluginInstalled = ETrue;

            }

        }

    else

        {

        IAUPDATE_TRACE_1("[IAUpdater] SetProcessParametersL error: %d", aErr);

        // Set the error value to the member variable.

        // So, the manager will know, that it will not try to install

        // any other items after this.

        iInstallError = aErr;

        }

    CIAUpdaterResult* result( CIAUpdaterResult::NewLC() );

    CIAUpdaterIdentifier& resultIdentifier( result->Identifier() );

    CIAUpdaterIdentifier& currentIdentifier( iCurrentFileList->Identifier() );

    resultIdentifier.SetIdL( currentIdentifier.Id() );

    resultIdentifier.SetNamespaceL( currentIdentifier.Namespace() );

    resultIdentifier.SetUid( currentIdentifier.Uid() );

    result->SetErrorCode( aErr );

    result->SetHidden( iCurrentFileList->Hidden() );

    iResultsFile->Results().AppendL( result );

    // Ownership of the result was transferred to the array.

    CleanupStack::Pop( result );

    IAUPDATE_TRACE("[IAUpdater] SetProcessParametersL end");

    }

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

// CIAUpdaterMngr::StartIADProcessesL()

// Start IAD process after installation.

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

//	

void CIAUpdaterMngr::StartIADProcessesL()

    {    

    IAUPDATE_TRACE("[IAUpdater] CIAUpdaterMngr::StartIADProcessesL start"); 

    // Apparc is not always up-to-date just after installation

    // To guarantee that just installed iaupdate.exe will be launched

    // it's checked that RApaLsSession is up-to-date before launching iupdatelancher.exe

    TFileName fullNameOfIaupdate; 

    InstalledIAUpdateL( fullNameOfIaupdate );

    RApaLsSession apa;

    User::LeaveIfError( apa.Connect() );

    CleanupClosePushL(apa);

    TBool foundInApparc = EFalse;

    TApaAppInfo info;

    // trying with 0.5 seconds intervals  max. 10 seconds. 

    for( TInt i = 0; !foundInApparc && i < 21 ; i++)  

        {

        if ( i > 0 )

            {

            User::After( 500000 );

            }

        User::LeaveIfError( apa.GetAppInfo( info, TUid::Uid( IAUpdaterDefs::KIADUpdateUid3 ) ) );

        if ( info.iFullName.CompareF ( fullNameOfIaupdate ) == 0 )

            {

            foundInApparc = ETrue;

            }

        }

    CleanupStack::PopAndDestroy( &apa );   

    RProcess process;

    User::LeaveIfError( 

        process.Create( IAUpdaterDefs::KIAUpdateLauncherExe, KNullDesC ) );

    process.Resume();

    process.Close();

    User::LeaveIfError( 

        process.Create( IAUpdaterDefs::KIAUpdateBgCheckerExe, KNullDesC ) );

    process.Resume();

    process.Close();    

    IAUPDATE_TRACE("[IAUpdater] CIAUpdaterMngr::StartIADProcessesL end"); 

    }

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

// CIAUpdaterMngr::CloseIADProcessesL()

// Close IAD process after one successfull installation.

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

//	

void CIAUpdaterMngr::CloseIADProcessesL()

    {

    IAUPDATE_TRACE("[IAUpdater] CloseIADProcessesL start");

    //close background checker 

    TBool continueScanning = ETrue;

    TFindProcess findProcess;

    // : add search pattern to optimizing

    TFullName fullName;

    while( continueScanning )

		{

		if ( findProcess.Next( fullName ) == KErrNone ) 

		    {

		    RProcess process;

	        User::LeaveIfError( process.Open( findProcess ) );

	        TUid sid( process.SecureId() );

	        if ( sid == IAUpdaterDefs::KUidIABgChecker && process.ExitType() == EExitPending )

		        {

		        process.Kill( KErrNone );

		        continueScanning = EFalse;

		        }

		    process.Close(); 	

		    }

		else

		    {

		    continueScanning = EFalse;	

		    }   

		}

    //close IAD launcher

    TInt wgId=0;

    CApaWindowGroupName* wgName = CApaWindowGroupName::NewL( iWsSession );

    CleanupStack::PushL( wgName );

    TUid launcherUid( TUid::Uid( IAUpdaterDefs::KIADUpdateLauncherUid3 ) );

    CApaWindowGroupName::FindByAppUid( launcherUid, iWsSession, wgId );

    if ( wgId != KErrNotFound )