--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetoothengine/btnotif/btnotifsrv/src/btnotifconnectiontracker.cpp	Tue Aug 31 15:25:10 2010 +0300
@@ -0,0 +1,192 @@
+/*
+* Copyright (c) 2010 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: Bluetooth connection tracker and manager.
+*
+*/
+
+#include "btnotifconnectiontracker.h"
+#include <btextnotifiers.h>
+#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
+#include <btextnotifierspartner.h>
+#endif
+
+#include <btservices/btdevextension.h>
+#include <btservices/btdevrepository.h>
+
+#include "btnotifsession.h"
+#include "btnotifclientserver.h"
+#include "bluetoothtrace.h"
+#include "btnotifsecuritymanager.h"
+
+/**  Time window for determining if there are too many requests. */
+#ifndef __WINS__
+#define KDENYTHRESHOLD TTimeIntervalSeconds(3)
+#else   //__WINS__
+#define KDENYTHRESHOLD TTimeIntervalSeconds(5)
+#endif  //__WINS__
+
+
+// ======== LOCAL FUNCTIONS ========
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// C++ default constructor
+// ---------------------------------------------------------------------------
+//
+CBTNotifConnectionTracker::CBTNotifConnectionTracker( CBTNotifServer* aServer )
+:   iServer( aServer )
+    {
+    }
+
+
+// ---------------------------------------------------------------------------
+// Symbian 2nd-phase constructor
+// ---------------------------------------------------------------------------
+//
+void CBTNotifConnectionTracker::ConstructL()
+    {
+    BOstraceFunctionEntry0( DUMMY_DEVLIST );
+    // Open a handle to the registry server
+    User::LeaveIfError( iBTRegistrySession.Connect() );
+    // Open a handle to the socket server
+    User::LeaveIfError( iSockServ.Connect() );
+    iPairingManager = CBTNotifSecurityManager::NewL(*this, iServer->DevRepository() );
+    BOstraceFunctionExit0( DUMMY_DEVLIST );
+    }
+
+
+// ---------------------------------------------------------------------------
+// NewL.
+// ---------------------------------------------------------------------------
+//
+CBTNotifConnectionTracker* CBTNotifConnectionTracker::NewL( CBTNotifServer* aServer )
+    {
+    CBTNotifConnectionTracker* self = new( ELeave ) CBTNotifConnectionTracker( aServer );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CBTNotifConnectionTracker::~CBTNotifConnectionTracker()
+    {
+    BOstraceFunctionEntry0( DUMMY_DEVLIST );
+    iDeniedRequests.Close();
+    delete iPairingManager;
+    iSockServ.Close();
+    iBTRegistrySession.Close();
+    BOstraceFunctionExit0( DUMMY_DEVLIST );
+    }
+
+// ---------------------------------------------------------------------------
+// Process notifier message related to pairing notifiers.
+// ---------------------------------------------------------------------------
+//
+void CBTNotifConnectionTracker::HandleNotifierRequestL( const RMessage2& aMessage )
+    {
+    BOstraceFunctionEntryExt ( DUMMY_LIST, this, aMessage.Function() );
+    iPairingManager->HandleNotifierRequestL(aMessage);
+    BOstraceFunctionExit1( DUMMY_DEVLIST, this );
+    }
+
+// ---------------------------------------------------------------------------
+// Handle a request related to pairing.
+// ---------------------------------------------------------------------------
+//
+void CBTNotifConnectionTracker::HandleBondingRequestL( const RMessage2& aMessage )
+    {
+    BOstraceFunctionEntryExt ( DUMMY_LIST, this, aMessage.Function() );
+    iPairingManager->HandleBondingRequestL(aMessage);
+    BOstraceFunctionExit1( DUMMY_DEVLIST, this );
+    }
+
+// ---------------------------------------------------------------------------
+// Check if this device has been denied a connection already before.
+// Also check if a previous connection attempt has just been rejected.
+// ---------------------------------------------------------------------------
+//
+TBool CBTNotifConnectionTracker::UpdateBlockingHistoryL( const CBTDevice* aDevice, 
+    TBool aAccepted )
+    {
+    BOstraceFunctionEntry0( DUMMY_DEVLIST );
+    __ASSERT_ALWAYS( aDevice, PanicServer( EBTNotifPanicBadArgument ) );
+    // Check the time since the previous event.
+    TBool result = RecordConnectionAttempts( aAccepted );
+    TInt pos = iDeniedRequests.Find( aDevice->BDAddr() );
+    if( !aAccepted )
+        {
+        if( pos == KErrNotFound )
+            {
+            // The user denied the request from a new device, record the device address.
+            if( aDevice->IsValidPaired() && aDevice->IsPaired() )
+                //[MCL]: && iDevice->LinkKeyType() != ELinkKeyUnauthenticatedUpgradable )
+                {
+                // Paired devices are allowed one time rejection without a prompt for blocking.
+                result = EFalse;
+                }
+            iDeniedRequests.AppendL( aDevice->BDAddr() );
+            }
+        // Nothing needed here if the address is already in the array.
+        }
+    else if( pos > KErrNotFound )
+        {
+        // The user accepted a request, and it was from a device he/she 
+        // previously rejected. Clear the history for this device from the array.
+        iDeniedRequests.Remove( pos );
+        }
+    BOstraceFunctionExit0( DUMMY_DEVLIST );
+    return result;
+    }
+
+// ---------------------------------------------------------------------------
+// Record and check the time between connection attempts.
+// ---------------------------------------------------------------------------
+//
+TBool CBTNotifConnectionTracker::RecordConnectionAttempts( TBool aAccepted )
+    {
+    BOstraceFunctionEntry1( DUMMY_DEVLIST, this );
+    TBool result = ETrue;
+    TTime now( 0 );
+    if( !aAccepted )
+        {
+        now.UniversalTime();
+        if( iLastReject )
+            {
+            // Check the time between denied connections, that it does not go too fast.
+            TTimeIntervalSeconds prev( 0 );
+            if( !now.SecondsFrom( TTime( iLastReject ), prev ) )
+                {
+                if( prev <= KDENYTHRESHOLD )
+                    {
+                    // We are getting the requests too fast. Present the user with
+                    // an option to turn BT off.
+                    //iServer->SettingsTracker()->SetPower( EFalse );
+                    result = EFalse;
+                    }
+                }
+            }
+        }
+    // Record the current timestamp.
+    // It is reset in case the user accepted the request.
+    iLastReject = now.Int64();
+    BOstraceFunctionExitExt( DUMMY_DEVLIST, this, result );
+    return result;
+    }
+