/*

* Copyright (c) 2004 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: 

*

*/

#include "daemon.h"

#include "drivewatcher.h"

#include "SWInstDebug.h"

#include "securitypolicy.h"

#include "sisregistrysession.h"

namespace Swi

{

// CDaemon

/*static*/ CDaemon* CDaemon::NewL(MDaemonBehaviour& aBehaviour)

    {

    CDaemon* self=NewLC(aBehaviour);

    CleanupStack::Pop(self);

    return self;

    }

/*static*/ CDaemon* CDaemon::NewLC(MDaemonBehaviour& aBehaviour)

    {

    CDaemon* self=new(ELeave) CDaemon(aBehaviour);

    CleanupStack::PushL(self);

    self->ConstructL();

    return self;

    }

CDaemon::~CDaemon()

    { 

    iPolicyLockFile.Close();

    iWatchers.ResetAndDestroy();

    iFs.Close();

    }

CDaemon::CDaemon(MDaemonBehaviour& aBehaviour)

    : iBehaviour(aBehaviour)

    {

    }

void CDaemon::ConstructL()

    {

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

    LockSensitiveFiles();

    StartRecoveryL();

    iBehaviour.StartupL();

    StartWatchersL();

    }

void CDaemon::StartWatchersL()

    {

    FLOG( _L("Daemon: Start watchers") );        

    RFs fs;

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

    CleanupClosePushL(fs);

    User::LeaveIfError(fs.ShareProtected());

    TDriveList driveList;

    User::LeaveIfError(fs.DriveList(driveList));

    for (TInt drive=0; drive < KMaxDrives; ++drive)

        {

        if (driveList[drive] == 0)

            {

            continue;

            }

        TDriveInfo info;

        FLOG_1( _L("Daemon: Checking drive %d"), drive );                

        // Ignore errors since the next drive might work

        if (KErrNone != fs.Drive(info, drive))

            {

            FLOG_1( _L("Daemon: drive error = %d"), fs.Drive(info, drive) );  

            /// @todo, log error

            continue;

            }

        FLOG_1( _L("Daemon: info.iDriveAtt %d"), info.iDriveAtt );      

        FLOG_1( _L("Daemon: iDriveAtt & KDriveAttRemovable %d"), 

            (info.iDriveAtt & KDriveAttRemovable) );        

        FLOG_1( _L("Daemon: iDriveAtt & KDriveAttLogicallyRemovable %d"), 

            info.iDriveAtt & KDriveAttLogicallyRemovable );

        if (info.iDriveAtt & KDriveAttRemovable || 

            info.iDriveAtt & KDriveAttLogicallyRemovable )

            {   

            FLOG( _L("Daemon: Ok Drive is Removable or LogicallyRemovable") );                

            CDriveWatcher* driveWatcher=CDriveWatcher::NewLC(iFs, drive, iBehaviour);

            User::LeaveIfError(iWatchers.Append(driveWatcher));

            CleanupStack::Pop(driveWatcher);

            }

#ifdef __WINS__

        // If drive is not seen as removable in wins env., check if 

        // there is Daemon folder and start watcher if needed.        

        if ( ! ( info.iDriveAtt & KDriveAttRemovable || 

                info.iDriveAtt & KDriveAttLogicallyRemovable) )

            {

            // Watcher is not needed for C.

            if ( drive == 2 )

                {

                continue;

                }

            FLOG( _L("Daemon: Drive found. Check private folder") );                      

            _LIT( KDaemonPrivateFolder,":\\private\\10202dce\\" );                                   

            TChar driveLetter;

            User::LeaveIfError( fs.DriveToChar( drive, driveLetter ) );

            CDir* list = NULL;        

            HBufC* path = HBufC::NewLC( KMaxFileName );

            TPtr pathPtr = path->Des();

            pathPtr.Append( driveLetter );

            pathPtr.Append( KDaemonPrivateFolder );          

            // Check if folder exists in this drive.                       

            if ( KErrNone == iFs.GetDir( pathPtr, KEntryAttNormal, ESortNone, list ) )

                {     

                FLOG_1( _L("Daemon: Private folder found from drive %d."), drive );        

                CDriveWatcher* driveWatcher = 

                    CDriveWatcher::NewLC( iFs, drive, iBehaviour );

                User::LeaveIfError( iWatchers.Append( driveWatcher ) );                

                CleanupStack::Pop( driveWatcher );                

                }

            CleanupStack::Pop( path );                                              

            }

#endif  //__WINS__  

        }

    CleanupStack::PopAndDestroy(&fs);

    } // StartWatchersL()

void CDaemon::LockSensitiveFiles()

    {

    TInt err = iPolicyLockFile.Open( 

        iFs, 

        KSwisPolicyFile, 

        EFileShareReadersOnly | EFileRead);

    FLOG_1( _L("Daemon: Policy file lock error = %d."), err );  

    }

void CDaemon::StartRecoveryL()

    { 

    FLOG( _L("Daemon: StartRecoveryL: Check to see if a recovery is needed.") );  

    RSisRegistrySession registrySession;

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

    CleanupClosePushL( registrySession );

    // A recovery failure should not affect SWI Daemon start up.

    TRAP_IGNORE( registrySession.RecoverL() );

    CleanupStack::PopAndDestroy( &registrySession );

    FLOG( _L("Daemon: StartRecoveryL: Recovery check finished.") ); 

    } // StartRecoveryL()

} // namespace Swi