/*

* Copyright (c) 2002 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:  Implements authorisation notifier class.

*

*/

// INCLUDE FILES

#include <BTNotif.rsg>       // Own resources

#include "btnauthnotifier.h" // Own class definition

#include "btNotifDebug.h"    // Debugging macros

#include <btextnotifiers.h>

#include <AknMediatorFacade.h> // Cover UI

#include <btengconstants.h>

#include <btengsettings.h>

#include <e32cmn.h>

#include <btotgpairpub.inl>

#include <btengprivatecrkeys.h>

#include <e32property.h>

#include <e32const.h>

#include <e32des8.h>

#include <e32cmn.h>

#include <utf.h> // Unicode character conversion utilities

#include <btengutil.h>

#ifdef __SERIES60_HELP

#include <hlplch.h>

#include <csxhelp/bt.hlp.hrh> // The bt hrh info is needed, for help launching

#endif

#include <bluetoothuiutil.h>

#include "btnotifnameutils.h"

//

// SDP UUID Constants - Short form

// Taken from Bluetooth Profile specification v1.1

// These are used when registering the service to

// local SDP database and when searching the service

// information from remote device.

const TUint KBTSdpDun                   = 0x1103;

const TUint KBTSdpGenericTelephony      = 0x1204;

const TUint KBTSdpFax                   = 0x1111;

const TUint KBTSdpObjectPush            = 0x1105;

const TUint KBTSdpFileTransfer          = 0x1106;

const TUint KBTSdpHeadSet               = 0x1108;

const TUint KBTSdpGenericNetworking     = 0x1201;

const TUint KBTSdpBasicImaging          = 0x111b;

/**  Identification for active object */

const TInt KBTNotifAuthNotifierLockReq = 10;

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

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

// CBTAuthNotifier::NewL

// Two-phased constructor.

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

//

CBTAuthNotifier* CBTAuthNotifier::NewL()

    {

    CBTAuthNotifier* self = new (ELeave) CBTAuthNotifier();

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

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

// CBTAuthNotifier::CBTAuthNotifier

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

// might leave.

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

//

CBTAuthNotifier::CBTAuthNotifier()

    {

    }

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

// Destructor

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

//

CBTAuthNotifier::~CBTAuthNotifier()

    {

    }

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

// CBTAuthNotifier::RegisterL

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

//

CBTAuthNotifier::TNotifierInfo CBTAuthNotifier::RegisterL()

    {

    iInfo.iUid=KBTManAuthNotifierUid;

    iInfo.iChannel=KBTAuthorisationChannel;

    iInfo.iPriority=ENotifierPriorityVHigh;

    return iInfo;

    }

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

// CBTAuthNotifier::GetParamsL

// Initialize parameters and check if device is already

// in registry. Jump to RunL as soon as possible.

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

//

void CBTAuthNotifier::GetParamsL(const TDesC8& aBuffer, TInt aReplySlot, const RMessagePtr2& aMessage)

    {

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::GetParamsL()"));

    if( !iMessage.IsNull())

        {

        User::Leave(KErrInUse);

        }

    iMessage = aMessage;

    iReplySlot = aReplySlot;

    if ( AutoLockOnL() )

        {

        // The phone is locked, access denied.

        // Write results back to caller and complete message.	

	CompleteMessage(EFalse, KErrNone);	

        return;

        }

    TBTAuthorisationParams param;

    TPckgC<TBTAuthorisationParams> pckg(param);

    pckg.Set(aBuffer);

    iServiceUid = pckg().iUid.iUid;  // Pick up service uid from message

    iBTAddr = pckg().iBDAddr;

    if ( OtherOutgoPairing( iBTAddr ) )

        {

        // We won't allow connection request from another device during outgoing pairing:

        FLOG(_L("[BTNOTIF]\t CBTAuthNotifier: outgoing pair in progress, reject request from other device"));

        CompleteMessage(KErrCancel);

        return;

        }	

    // create iDevice so that the name won't be lost if the device does

    // not exist in registry.

    iDevice = CBTDevice::NewL( iBTAddr );

    BtNotifNameUtils::SetDeviceNameL(pckg().iName, *iDevice);

    if ( !iNotifLockProp.Handle() )

        {

        User::LeaveIfError( iNotifLockProp.Attach( 

                KPSUidBluetoothEnginePrivateCategory, KBTNotifierLocks ) );

        }

    if(!iLockActive)

        {

        iLockActive = CBTNotifActive::NewL( this, KBTNotifAuthNotifierLockReq, CActive::EPriorityStandard );

        }

    CheckAndSubscribeNotifLocks();

    if ( !iSuspended )

        {

        // Check if device is in the registry, function of notifier base  

        GetDeviceFromRegL( iBTAddr );

        }

#ifdef _DEBUG

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::GetParamsL() Executing authorisation..."));

    TBuf<12> deviceAddressString;

    pckg().iBDAddr.GetReadable(deviceAddressString);

    FTRACE(FPrint(_L("[BTNOTIF]\t  BT Address: %S"), &deviceAddressString));

    FTRACE(FPrint(_L("[BTNOTIF]\t CBTAuthNotifier::GetParamsL Service Uid: %d = 0x%X"), iServiceUid, iServiceUid ));

#endif

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::GetParamsL() completed"));

    }

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

// CBTAuthNotifier::UpdateL

// Notifier update. Stores the received bluetooth

// device name into registry and show it on screen.

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

//

TPtrC8 CBTAuthNotifier::UpdateL(const TDesC8& aBuffer)

    {

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::UpdateL()"));

    TBTNotifierUpdateParams params; // Contains iName and iResult (name request)

    TPckgC<TBTNotifierUpdateParams> pckg(params);

    pckg.Set(aBuffer);

    FTRACE(FPrint(_L("[BTNOTIF]\t CBTAuthNotifier::UpdateL - Name: '%S' length: %d"), &pckg().iName, pckg().iName.Length() ));

    // If the device name request was successful and if new name is valid, show the new name.

    if (pckg().iResult == KErrNone)

        {

        BtNotifNameUtils::SetDeviceNameL(pckg().iName, *iDevice); // Override possible previous device name

        // Show new prompt for dialog if it is still on the screen

        if ( !iDevice->IsValidFriendlyName() && iDevice->IsValidDeviceName())

            {

            // Create new prompt string with new device name

            RBuf stringholder;

            CleanupClosePushL( stringholder );

            BluetoothUiUtil::LoadResourceAndSubstringL( 

                    stringholder, iStrResourceId, 

                    BTDeviceNameConverter::ToUnicodeL(iDevice->DeviceName()), 0 );

            iNotifUiUtil->UpdateQueryDlgL( stringholder );

            iNotifUiUtil->UpdateCoverUiL( iDevice->DeviceName() );

            CleanupStack::PopAndDestroy();  // stringholder

            }

        }

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::UpdateL() completed"));

    TPtrC8 ret(KNullDesC8);

    return (ret);

    }

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

// CBTAuthNotifier::RequestCompletedL

// Gets called when P&S key notifies change

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

void CBTAuthNotifier::RequestCompletedL( CBTNotifActive* aActive, TInt aId, TInt aStatus )

    {

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::RequestCompletedL()"));

    ASSERT( aId == KBTNotifAuthNotifierLockReq );

    (void) aActive;

    (void) aId;

    if ( aStatus == KErrNone )

        {

        TBool prevSuspend = iSuspended;

        // check the latest lock status and subscribe to further lock event:

        CheckAndSubscribeNotifLocks();

        if ( prevSuspend && !iSuspended )

            {

            // Check if device is in the registry, function of notifier base  

            GetDeviceFromRegL( iBTAddr ); 

            }

        else if ( iSuspended && !(iNotifUiUtil->IsQueryReleased()) )

            {

            iNotifUiUtil->DismissDialog();

            }

        }

    else

        {

        HandleError( aActive, KBTNotifAuthNotifierLockReq, iLockActive->RequestStatus().Int() );

        }

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::RequestCompletedL() completed"));

    }

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

// CBTAuthNotifier::HandleError

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

void CBTAuthNotifier::HandleError( CBTNotifActive* aActive, TInt aId, TInt aError )

    {

    FTRACE(FPrint(_L("[BTNOTIF]\t CBTAuthNotifier::HandleError() error = %d"), aError ));

    (void) aActive;

    (void) aId;

    (void) aError;

    }

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

// CBTAuthNotifier::DoCancelRequest

// Root caller is CBTNotifActive::CancelRequest(), which calls 

// CActive::Cancel that calls DoCancel() if request is active.

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

void CBTAuthNotifier::DoCancelRequest( CBTNotifActive* aActive, TInt aId )

    {

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::DoCancel() >>"));

    ASSERT( aId == KBTNotifAuthNotifierLockReq );

    (void) aActive;

    (void) aId;

    iNotifLockProp.Cancel();

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::DoCancel() <<"));

    }

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

// CBTAuthNotifier::Cancel

// Not Active Object's cancel, but notifier deactivation

// Release all own resources (member variables)

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

//

void CBTAuthNotifier::Cancel()

    {

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::Cancel()"));

    if (iLockActive)

        {

        iLockActive->CancelRequest();

        delete iLockActive;

        iLockActive = NULL;

        }

    iNotifLockProp.Close();

	CBTNotifierBase::Cancel(); 

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::Cancel() completed"));

    }

void CBTAuthNotifier::HandleGetDeviceCompletedL(const CBTDevice* aDev)

	{

	FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::HandleGetDeviceCompleted()"));	

    (void) aDev;

    if ( iSuspended)

        {

        FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::HandleGetDeviceCompleted, still suspended, wait"));

        return;

        }

    TBool reqAllowed = IsJustWorksPaired( iDevice->AsNamelessDevice() ) ? 

        IsUserAwarePaired( iDevice->AsNamelessDevice() ) : ETrue ;

    FTRACE(FPrint(_L("[BTNOTIF]\t CBTAuthNotifier, reqAllowed %d" ), reqAllowed ) );

    if ( !reqAllowed )

        {

        // Do not grant access to device that is not paired in Just Works mode without

        // user awareness, e.g. pairing due to an incoming connection request from a 

        // headset.

        CompleteMessage(KErrAccessDenied);

        return;

        }

    iStrResourceId = R_BT_AUTHORISATION_NAME;

    // Select authorisation state for further use (dialogue selection)

    switch( iServiceUid )

        {

        case KBTSdpObjectPush:

        case KBTSdpBasicImaging: 

            iAuthState = EBTObexAuthorisation;

            iStrResourceId = R_BT_RECEIVE_MESSAGE;

            iCoverUiDlgId = ECmdShowReceiveMessageFromDeviceDlg;

            if( IsUserAwarePaired( iDevice->AsNamelessDevice() ) )

                {

                iAuthState = EBTObexAuthForPairedDevice;

                iStrResourceId = R_BT_RECEIVE_MESSAGE_PAIRED;

                iCoverUiDlgId = ECmdShowReceiveMessageFromPairedDeviceDlg; 

                }

            break;

        case KBTSdpFax:

        case KBTSdpDun:

        case KBTSdpFileTransfer:

        case KBTSdpHeadSet:

        case KBTSdpGenericTelephony:

        case KBTSdpGenericNetworking:

            if ( iDevice->GlobalSecurity().NoAuthorise() )

                {

                iAuthState = EBTAutoAuthorisation;

                }

            else

                {

                iAuthState = EBTNormalAuthorisation;

                }

            iCoverUiDlgId = ECmdShowAcceptConnRequestDlg;

            break;

        default:

            { // check if device is authorized

            if ( iDevice->GlobalSecurity().NoAuthorise() )

                {

                iAuthState = EBTAutoAuthorisation;

                }

            else

                {

                iAuthState = EBTAutoAuthorisationNotAuthorisedOnPhone;                        

                }

            break;

            }

        }

    FTRACE(FPrint(_L("[BTNOTIF]\t CBTAuthNotifier::HandleGetDeviceComplete() Complete. iAuthState = %d"), iAuthState ));    

    ShowAuthoQueryL();

	}

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

// CBTAuthNotifier::GetByPassAudioNotifier

// is bypassing this audio connection query needed and if it is, will the

// query be automatically accepted or rejected.

//

// This is used for bypassing the notifiers of the 2nd audio connection, so

// the the user needs to reply to the incoming audio link only once.

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

//    

TBool CBTAuthNotifier::GetByPassAudioNotifier(const TBTDevAddr& aDeviceAddress,TBool& aAccept)

	{

	FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::GetByPassAudioNotifier()"));	

		TBuf8<48> buf;

		RProperty::Define(KPSUidBluetoothEnginePrivateCategory,KBTAuthorInfoPerDevice, RProperty::EByteArray );

		RProperty::Get(KPSUidBluetoothEnginePrivateCategory,KBTAuthorInfoPerDevice,buf);

		if(buf.Length()>2)

			{

			// accept status of last attempt			

			aAccept= (buf[0]=='1');

			// last address						

			TBuf<12> oldAddrString;

			oldAddrString.Copy(buf.Mid(2,12));

			TBTDevAddr lastAddress;

			lastAddress.SetReadable(oldAddrString);

			// last time

			TInt64 num(0);

			TLex8 lex;			

			lex=buf.Mid(15);	

			TBuf<32> tmp_debug;

			tmp_debug.Copy(buf.Mid(15));

			lex.Val( num );

			TTime lastConnectionTime( num );

			TTime now;			

			now.UniversalTime();			

			TBuf16<48> buf2;

			buf2.Copy(buf);

			FTRACE(FPrint(_L("[BTNOTIF]\t CBTAuthNotifier::GetByPassAudioNotifier() Complete same_address=%d Time_ok=%d last_reply=%d"),lastAddress==aDeviceAddress,now>=lastConnectionTime && now <lastConnectionTime+ TTimeIntervalSeconds(5),aAccept));	

			return lastAddress==aDeviceAddress && (now>=lastConnectionTime && now <lastConnectionTime+ TTimeIntervalSeconds(5) );		

			}

		FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::GetByPassAudioNotifier() Complete - empty key"));				

		return EFalse;

	}

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

// CBTAuthNotifier::MemorizeCurrentAudioAttempt

// Store the information about this audio connection attempt 

// and what user replied to that. This is used by

// GetBypassAudio Notifier.

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

//    

void CBTAuthNotifier::MemorizeCurrentAudioAttempt(const TBool aAccept,const TBTDevAddr& aDeviceAddress)    			

	{

	FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::MemorizeCurrentAudioAttempt()"));	

	TBuf8<48> buf;

	buf.Zero();

	buf.AppendNum(aAccept!=EFalse);//now 0/1 only.

	buf.Append(';');

	TBuf<12> a;

	aDeviceAddress.GetReadable(a);

	for(TInt t=0;t<12;t++)

		buf.Append(a[t]);

	buf.Append(';');		

	TTime writeTime;

	writeTime.UniversalTime();		

	buf.AppendNum(  writeTime.Int64()  );

	RProperty::Set(KPSUidBluetoothEnginePrivateCategory,KBTAuthorInfoPerDevice,buf);

	FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::MemorizeCurrentAudioAttempt() complete"));	

	}

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

// CBTAuthNotifier::ShowAuthoQueryL

// Ask user's response on authorization query

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

// 

void CBTAuthNotifier::ShowAuthoQueryL()

    {

    FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::ShowAuthoQueryL"));

    if ( iAuthState == EBTAutoAuthorisation )

        {

        // device alreay set trusted now. allow connection automatically       

        CompleteMessage(ETrue, KErrNone);        

        FLOG(_L("[BTNOTIF]\t CBTAuthNotifier, device authorized already, allow connection automatically" ));

        return;

        }

    TBool reply;

    if ( GetByPassAudioNotifier(iDevice->BDAddr(),reply) )

        {

        FTRACE(FPrint(_L("[BTNOTIF]\t CBTAuthNotifier::ShowAuthoQueryL bypassing notifier with reply: %d"),reply));          

        CompleteMessage(reply, KErrNone);

        return;

        }

    // Not asking user's response if auth request is for: profile HFP/HSP/A2DP/AVRCP, and

    // there is already existing connection to one of those profiles from the same device.

    // 

    TBool connectStatus = IsExistingConnectionToAudioL( iDevice->BDAddr() );  

    // if iAuthState==EBTAutoAuthorisationNotAuthorised and device is connected it means it tries several connections

    // so we just approve this. Also if connected & EBTAutoAuthorisation.

    //                              

    if(connectStatus && ( iAuthState==EBTAutoAuthorisationNotAuthorisedOnPhone))                                         

        {

        FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::Automatic authorisation ()"));

        //Antomatic authorisation without asking user           

        CompleteMessage(ETrue, KErrNone);   

        FLOG(_L("[BTNOTIF]\t CBTAuthNotifier::ShowAuthoQueryL() completed-"    ));     

        return;                 

        }

    // check if we're showing bt off query

    TInt queryValue=EBTQueryOff;

    RProperty::Get(KPSUidBluetoothEnginePrivateCategory,KBTTurnBTOffQueryOn,queryValue);                

    if( queryValue == EBTQueryOn )

        {

        CompleteMessage(KErrCancel);

        return;

        }

    TBTDeviceName tempDeviceName; 

    BtNotifNameUtils::GetDeviceDisplayName(tempDeviceName, iDevice);

    RBuf stringholder;

    CleanupClosePushL( stringholder );

    BluetoothUiUtil::LoadResourceAndSubstringL( 

            stringholder, iStrResourceId, tempDeviceName, 0);

    TInt keypress = iNotifUiUtil->ShowQueryL( stringholder, R_BT_AUTHORISATION_QUERY, 

            iCoverUiDlgId, tempDeviceName, CAknQueryDialog::EConfirmationTone );

    CleanupStack::PopAndDestroy();  // stringholder

    // If this notifier is cancelled by the caller, no need to perform the rest operation:

    if ( iSuspended || iMessage.IsNull() )

        {