/*

* Copyright (c) 2008 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:      server impl. of session against media server

*

*/

// INCLUDE FILES

// System

#include <f32file.h>

// upnp stack api

#include <upnpstring.h>

// dlnasrv / mediaserver api

#include <upnpmediaserversettings.h>

#include <upnpdlnaprotocolinfo.h>

#include <upnpdlnaprotocolinfocons.h>

// dlnasrv / avcontroller helper api

#include "upnpconstantdefs.h" // for upnp-specific stuff

// dlnasrv / internal api's

#include "upnpcommonutils.h"

#include "httpdownloader.h"

// dlnasrv / avcontroller internal

#include "upnpdownloadsession.h"

#include "upnpavdeviceextended.h"

#include "upnpfiletransferitem.h"

#include "upnpavcontrollerserver.h"

#include "upnpaverrorhandler.h"

_LIT( KComponentLogfile, "upnpavcontrollerserver.txt");

#include "upnplog.h"

// CONSTANTS

const TUint32 KBufferSize       = 0x40000; // 256K

const TInt KParallerTransfers   = 1;

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

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

// CUPnPDownloadSession::NewL

// See upnpdownloadsession.h

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

CUPnPDownloadSession* CUPnPDownloadSession::NewL( CUpnpAVControllerServer&

    aServer, TInt aSessionId, const TDesC8& aUuid )

    {

    __LOG( "CUPnPDownloadSession::NewL" );

    CUPnPDownloadSession* self = new (ELeave) CUPnPDownloadSession(

        aServer, aSessionId );

    CleanupStack::PushL( self );    

    self->ConstructL( aUuid );

    CleanupStack::Pop( self );

    return self;

    }

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

// CUPnPDownloadSession::CUPnPDownloadSession

// See upnpdownloadsession.h

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

CUPnPDownloadSession::CUPnPDownloadSession( CUpnpAVControllerServer&

    aServer, TInt aSessionId ) :

    CUPnPFileTransferSessionBase( aServer, aSessionId )

    {

    __LOG( "CUPnPDownloadSession::CUPnPDownloadSession" );

    }

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

// CUPnPDownloadSession::~CUPnPDownloadSession

// See upnpdownloadsession.h

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

CUPnPDownloadSession::~CUPnPDownloadSession()

    {

    __LOG( "CUPnPDownloadSession::~CUPnPDownloadSession" );

    delete iDownloader;

    __LOG( "CUPnPDownloadSession::~CUPnPDownloadSession - end" );

    }

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

// CUPnPDownloadSession::ConstructL

// See upnpdownloadsession.h

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

void CUPnPDownloadSession::ConstructL( const TDesC8& aUuid )

    {

    __LOG( "CUPnPDownloadSession::ConstructL" );

    CUPnPFileTransferSessionBase::ConstructL( aUuid );

    iDownloader = CHttpDownloader::NewL( *this, (TUint32)iServer.IAP(),

        KBufferSize, KParallerTransfers );

    }

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

// CUPnPDownloadSession::TransferProgress

// See upnpdownloadsession.h

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

void CUPnPDownloadSession::TransferProgress( TAny* aKey, TInt aBytes,

    TInt aTotalBytes )

    {

    __LOG( "CUPnPDownloadSession::TransferProgress" );

    if( iProgressTrackingEnabled )

        {

        TUpnpFileTransferEvent item;

        TInt err = FindItemByKey( item, (TInt)aKey );

        if( err == KErrNone )

            {

            item.iStatus = KErrNone;

            item.iParam2 = aTotalBytes;

            item.iParam1 = aBytes;

            item.iEvent = TUpnpFileTransferEvent::ETransferProgress;

            Complete( item );                            

            }

        else

            {

            __LOG( "TransferProgress - Not enabled!" );

            }

        }

    }

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

// CUPnPDownloadSession::ReadyForTransfer

// See upnpdownloadsession.h

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

void CUPnPDownloadSession::ReadyForTransferL( TAny* aKey )

    {

    __LOG( "CUPnPDownloadSession::ReadyForTransfer" );

    TUpnpFileTransferEvent item;

    TInt err = FindItemByKey( item, (TInt)aKey );

    if( err == KErrNone )

        {       

        iDownloader->StartTransferL( aKey );        

        item.iEvent = TUpnpFileTransferEvent::ETransferStarted;

        Complete( item );

        }

    else

        {

        __LOG( "ReadyForTransfer - key not found" );

        // Not found

        item.iStatus = KErrGeneral;

        item.iParam2 = 0;

        item.iEvent = TUpnpFileTransferEvent::ETransferCompleted;

        Complete( item );

        }

    }

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

// CUPnPDownloadSession::TransferCompleted

// See upnpdownloadsession.h

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

void CUPnPDownloadSession::TransferCompleted( TAny* aKey, TInt aStatus )

    {

    __LOG( "CUPnPDownloadSession::TransferCompleted" );

    TUpnpFileTransferEvent item;

    TInt index;

    TInt err = FindItemByKey( item, (TInt)aKey, index );

    if( err == KErrNone )

        {

        item.iStatus = UPnPAVErrorHandler::ConvertToSymbianErrorCode( 

                aStatus,

                EUPnPHTTPError );

        item.iEvent = TUpnpFileTransferEvent::ETransferCompleted;

        item.iParam3 = 0;

        const HBufC* path = NULL;

        TRAPD( err, path = iDownloader->GetPropertyL( aKey,

            CHttpTransferBase::ETargetPath ) );

        if( iEventMsg )

            {

            if( err == KErrNone && path )

                {

                // Write path using slot 2

                iEventMsg->Write( 2, *path );                            

                }

            else

                {

                __LOG( "Error in path handling" );

                }    

            }

        else

            {

            if( err == KErrNone && path )

                {

                HBufC* buf = HBufC::New( path->Length() );

                if( buf )

                    {

                    buf->Des().Copy( *path );

                    item.iParam3 = (TAny*)buf;

                    }

                else

                    {

                    __LOG( "Error in path handling" );

                    }    

                }

            }    

        Complete( item );

        iTransferItems.Remove( index );      

        }

    else

        {

        // Corresponding key was not found!

        __LOG( "TransferCompleted - key not found" );

        // Not found

        item.iStatus = KErrGeneral;

        item.iParam2 = 0;

        item.iEvent = TUpnpFileTransferEvent::ETransferCompleted;

        Complete( item );        

        }

    if( aStatus == KErrDisconnected )

        {

        __LOG( "TransferCompleted - Target device lost" );

        TInt count = iTransferItems.Count();

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

            {

            iDownloader->CancelTransfer( (TAny*)iTransferItems[i].iKey );

            }

        iTransferItems.Reset();

        iEventQueu.Reset();            

        }

    }

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

// CUPnPDownloadSession::StartDownloadL

// See upnpdownloadsession.h

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

void CUPnPDownloadSession::StartDownloadL( const RMessage2& aMessage )

    {

    __LOG( "CUPnPDownloadSession::StartDownloadL" );

    CUpnpFileTransferItem* tmpTransferItem = CUpnpFileTransferItem::NewLC();

    ReadTransferItemFromMessageL( aMessage, 1 ,tmpTransferItem );

    TUpnpFileTransferEvent transferItem;

    if( CheckIfKeyExists( tmpTransferItem->Key() ) )

        {

        User::Leave( KErrInUse );

        }

    transferItem.iKey = tmpTransferItem->Key();

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

    if( tmpTransferItem->Path() == KNullDesC )

        {

        // Read path from the settings

        CUpnpMediaServerSettings* msSettings =

            CUpnpMediaServerSettings::NewL();

        CleanupStack::PushL( msSettings );

        HBufC8* buf = msSettings->GetL(

            UpnpMediaServerSettings::EUploadDirectory );

        CleanupStack::PopAndDestroy( msSettings );    

        path->Des().Copy( *buf );

        delete buf;

        }

    else

        {

        // Get path from the transfer item

        path->Des().Copy( tmpTransferItem->Path() );

        }    

    __LOG8( tmpTransferItem->Title() );

    HBufC* title16 = UpnpString::ToUnicodeL( tmpTransferItem->Title() );

    CleanupStack::PushL( title16 );

    HBufC* title16checked =

        UPnPCommonUtils::ReplaceIllegalFilenameCharactersL( *title16 );

    CleanupStack::PopAndDestroy( title16 );

    CleanupStack::PushL( title16checked );

    CUpnpDlnaProtocolInfo* tmpInfo = CUpnpDlnaProtocolInfo::NewL(

        tmpTransferItem->ProtocolInfo() );

    CleanupStack::PushL( tmpInfo );    

    HBufC* fileExt = UPnPCommonUtils::FileExtensionByMimeTypeL(

        tmpInfo->ThirdField() );  

    path->Des().Append( *title16checked  );

    if( fileExt )

        {

        path->Des().Append( *fileExt );

        delete fileExt;        

        }

    iDownloader->InsertFileIntoWaitQueueL( (TAny*)transferItem.iKey,

        *path, tmpTransferItem->Uri() );

    SetHeadersL( *tmpInfo, (TAny*)transferItem.iKey );    

    CleanupStack::PopAndDestroy( tmpInfo );    

    CleanupStack::PopAndDestroy( title16checked );

    iTransferItems.Append( transferItem );

    iDownloader->MoveToTransferQueueL( (TAny*)transferItem.iKey );

    CleanupStack::PopAndDestroy( path );

    CleanupStack::PopAndDestroy( tmpTransferItem );

    aMessage.Complete( KErrNone );        

    }

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

// CUPnPDownloadSession::StartDownloadFHL

// See upnpdownloadsession.h

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

void CUPnPDownloadSession::StartDownloadFHL( const RMessage2& aMessage )

    {

    __LOG( "CUPnPDownloadSession::StartDownloadFHL" );

    RFile fHandle;

    // handle is stored in slots 2 and 3

    User::LeaveIfError( fHandle.AdoptFromClient( aMessage, 2, 3 ) );

    CleanupClosePushL( fHandle );

    CUpnpFileTransferItem* tmpTransferItem = CUpnpFileTransferItem::NewLC();

    ReadTransferItemFromMessageL( aMessage, 1 ,tmpTransferItem );

    TUpnpFileTransferEvent transferItem;

    transferItem.iKey = tmpTransferItem->Key();

    if( CheckIfKeyExists( tmpTransferItem->Key() ) )

        {

        User::Leave( KErrInUse );

        }

    CUpnpDlnaProtocolInfo* tmpInfo = CUpnpDlnaProtocolInfo::NewL(

        tmpTransferItem->ProtocolInfo() );

    CleanupStack::PushL( tmpInfo );     

    iDownloader->InsertFileIntoWaitQueueL( (TAny*)transferItem.iKey, fHandle,

        tmpTransferItem->Uri() );

    SetHeadersL( *tmpInfo, (TAny*)transferItem.iKey );

    CleanupStack::PopAndDestroy( tmpInfo );

    iTransferItems.Append( transferItem );

    iDownloader->MoveToTransferQueueL( (TAny*)transferItem.iKey );

    CleanupStack::PopAndDestroy( tmpTransferItem );

    CleanupStack::PopAndDestroy( &fHandle );

    aMessage.Complete( KErrNone );  

    }

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

// CUPnPDownloadSession::CancelDownloadL

// See upnpdownloadsession.h

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

void CUPnPDownloadSession::CancelDownloadL( const RMessage2& aMessage )

    {

    __LOG( "CUPnPDownloadSession::CancelDownloadL" );

    TInt key = aMessage.Int1();

    TInt index;

    if( CheckIfKeyExists( key, index ) )

        {

        iDownloader->CancelTransfer( (TAny*)key );

        aMessage.Complete( KErrNone );

        iTransferItems.Remove( index );

        }

    else

        {

        aMessage.Complete( KErrNotFound );

        }    

    }

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

// CUPnPDownloadSession::CancelAllDownloadsL

// See upnpdownloadsession.h

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

void CUPnPDownloadSession::CancelAllDownloadsL( const RMessage2& aMessage )

    {

    __LOG( "CUPnPDownloadSession::CancelAllDownloadsL" );

    TInt count = iTransferItems.Count();

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

        {

        iDownloader->CancelTransfer( (TAny*)iTransferItems[i].iKey );

        }

    iTransferItems.Reset();

    iEventQueu.Reset();    

    aMessage.Complete( KErrNone );

    }

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

// CUPnPDownloadSession::StartTrackingDownloadProgressL

// See upnpdownloadsession.h

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

void CUPnPDownloadSession::StartTrackingDownloadProgressL(

    const RMessage2& aMessage )

    {

    __LOG( "CUPnPDownloadSession::StartTrackingDownloadProgressL" );

    TInt key = aMessage.Int1();

    if( CheckIfKeyExists( key ) )

        {

        iDownloader->TrackProgress( (TAny*)key, ETrue );

        iProgressTrackingEnabled = ETrue;        

        aMessage.Complete( KErrNone );

        }

    else

        {

        aMessage.Complete( KErrNotFound );

        }    

    }

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

// CUPnPDownloadSession::StopTrackingDownloadProgressL

// See upnpdownloadsession.h

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

void CUPnPDownloadSession::StopTrackingDownloadProgressL(

    const RMessage2& aMessage )

    {

    __LOG( "CUPnPDownloadSession::StopTrackingDownloadProgressL" );

    TInt key = aMessage.Int1();

    if( CheckIfKeyExists( key ) )

        {

        iDownloader->TrackProgress( (TAny*)key, EFalse );

        iProgressTrackingEnabled = EFalse;        

        aMessage.Complete( KErrNone );

        }

    else

        {

        aMessage.Complete( KErrNotFound );

        }    

    }

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

// CUPnPDownloadSession::GetDownloadEventL

// See upnpdownloadsession.h

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

void CUPnPDownloadSession::GetDownloadEventL( const RMessage2& aMessage )

    {

    __LOG( "CUPnPDownloadSession::GetDownloadEventL" );

    if( iEventQueu.Count() )

        {

        __LOG1( "GetDownloadEventL, events in queu: %d",

            iEventQueu.Count() );

        // There are events in the queu, write the first queued event back

        // to client

        TUpnpFileTransferEvent event = iEventQueu[0];

        iEventQueu.Remove( 0 );

        TPckg<TUpnpFileTransferEvent> resp1( event );

        if( event.iEvent ==

            TUpnpFileTransferEvent::ETransferCompleted &&

            event.iParam3 )

            {

            // Write path using slot 2