--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/backsteppingsrv/src/bsconfiguration.cpp	Thu Dec 17 08:54:17 2009 +0200
@@ -0,0 +1,279 @@
+/*
+* Copyright (c) 2007 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:  Class keeps BS configuration
+ *
+*/
+
+
+#include <bautils.h> //FileExists
+#include <xcfwtree.h>
+#include <xcfwengine.h>
+#include <gecoobjectbase.h>
+#include <gecodefaultobject.h>
+
+#include "bsdebug.h"
+#include "bsconfiguration.h"
+
+_LIT(KConfigurationFile, "bs_config.xml" );
+_LIT(KCDrive, "C");
+_LIT(KZDrive, "Z");
+
+_LIT(KDelimiter, ":");
+_LIT(KTrueValue, "1");
+_LIT(KHexStart,"0x");
+
+_LIT(KAppNode, "app");
+
+_LIT(KUidAttribute, "uid");
+_LIT(KResetAttribute, "reset");
+_LIT(KIgnoredAttribute, "ignored");
+_LIT(KIgnoredIfStartedFromAttribute, "ignoredIfStartedFrom");
+_LIT(KResetIfThruAttribute, "resetIfThru");
+
+// ================= MEMBER FUNCTIONS =======================
+
+// -----------------------------------------------------------------------------
+// C++ default constructor can NOT contain any code, that might leave.
+// -----------------------------------------------------------------------------
+//
+CBSConfiguration::CBSConfiguration()
+    {
+    // No implementation required
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor.
+// -----------------------------------------------------------------------------
+//
+CBSConfiguration::~CBSConfiguration()
+    {
+    delete iContentTree;
+    delete iContentEngine;
+
+    iResetApps.Close( );
+    iIgnoredApps.Close( );
+    iIgnoredIfStartedFrom.Close( );
+    iResetIfThru.Close( );
+    }
+
+// -----------------------------------------------------------------------------
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CBSConfiguration* CBSConfiguration::NewLC()
+    {
+    CBSConfiguration* self = new (ELeave)CBSConfiguration();
+    CleanupStack::PushL( self );
+    self->ConstructL( );
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CBSConfiguration* CBSConfiguration::NewL()
+    {
+    CBSConfiguration* self = CBSConfiguration::NewLC( );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CBSConfiguration::ConstructL()
+    {
+    iContentTree = CXCFWTree::NewL( );
+    iContentEngine = CXCFWEngine::NewL( this );
+
+    RFs fileSession;
+
+    User::LeaveIfError( fileSession.Connect( ) );
+    CleanupClosePushL( fileSession );
+
+    TFileName configPath;
+
+    User::LeaveIfError( fileSession.PrivatePath( configPath ) );
+    configPath.Insert( 0, KDelimiter );
+    configPath.Insert( 0, KCDrive );
+    configPath.Append( KConfigurationFile );
+
+    // first check if file exists on c drive 
+    if ( !BaflUtils::FileExists( fileSession, configPath ) )
+        {
+        // read from z drive 
+        configPath[0] = KZDrive()[0];
+        }
+
+    CleanupStack::PopAndDestroy( &fileSession );
+
+    iContentEngine->LoadL( *iContentTree, configPath );
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//    
+TBool CBSConfiguration::IsReset( TUid aApp )
+    {
+    return iResetApps.Find( aApp.iUid ) != KErrNotFound;
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//        
+TBool CBSConfiguration::IsIgnored( TUid aApp )
+    {
+    return iIgnoredApps.Find( aApp.iUid ) != KErrNotFound;
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//        
+TBool CBSConfiguration::IsIgnoredIfStartedFrom( TUid aApp )
+    {
+    return iIgnoredIfStartedFrom.Find( aApp.iUid ) != KErrNotFound;
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//        
+RArray<TInt>& CBSConfiguration::ResetIfThruList()
+    {
+    return iResetIfThru;
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+void CBSConfiguration::LoadConfigurationL()
+    {
+    // get root node
+    MXCFWNode* root = iContentTree->Root( );
+
+    // list of fetched nodes
+    RNodeArray nodes;
+    CleanupClosePushL( nodes );
+
+    // handle entries
+    iContentTree->GetNodesOfTypeL( KAppNode, nodes, root, ETrue );
+
+    for ( TInt i = 0; i < nodes.Count( ); i++ )
+        {
+        CGECODefaultObject* object =
+                static_cast<CGECODefaultObject*>(nodes[i]->Data( ));
+        TPtrC uidVal;
+        TPtrC resetVal;
+        TPtrC ignoredVal;
+        TPtrC ignoredIfStartedFromVal;
+        TPtrC resetIfThruVal;
+        object->GetAttribute( KUidAttribute, uidVal );
+        object->GetAttribute( KResetAttribute, resetVal );
+        object->GetAttribute( KIgnoredAttribute, ignoredVal );
+        object->GetAttribute( KIgnoredIfStartedFromAttribute,
+            ignoredIfStartedFromVal );
+        object->GetAttribute( KResetIfThruAttribute, resetIfThruVal );
+
+        TInt uid = Str2Int( uidVal );
+
+        if ( resetVal.Compare( KTrueValue ) == 0 )
+            iResetApps.AppendL( uid );
+
+        if ( ignoredVal.Compare( KTrueValue ) == 0 )
+            iIgnoredApps.AppendL( uid );
+
+        if ( ignoredIfStartedFromVal.Compare( KTrueValue ) == 0 )
+            iIgnoredIfStartedFrom.AppendL( uid );
+
+        if ( resetIfThruVal.Compare( KTrueValue ) == 0 )
+            iResetIfThru.AppendL( uid );
+        }
+
+#ifdef _DEBUG    
+
+    for ( TInt i = 0; i< iResetApps.Count( ); i++ )
+        DEBUG(("\tiResetApps[%d] = %X)", i, iResetApps[i]));
+
+    for ( TInt i = 0; i< iIgnoredApps.Count( ); i++ )
+        DEBUG(("\tiIgnoredApps[%d] = %X)", i, iIgnoredApps[i]));
+
+    for ( TInt i = 0; i< iIgnoredIfStartedFrom.Count( ); i++ )
+        DEBUG(("\tiIgnoredIfStartedFrom[%d] = %X)", i, iIgnoredIfStartedFrom[i]));
+
+    for ( TInt i = 0; i< iResetIfThru.Count( ); i++ )
+        DEBUG(("\tiResetIfThru[%d] = %X)", i, iResetIfThru[i]));
+
+#endif
+
+    // clean up
+    CleanupStack::PopAndDestroy( &nodes );
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//   
+TInt CBSConfiguration::Str2Int( const TDesC& aStr )
+    {
+    // if a string starts from '0x' then convert aStr from hex to int.
+    // else send aStr to the StrDec2Uint
+
+    TInt position(aStr.Find( KHexStart ) );
+    TInt ret(KErrArgument);
+    if ( position == 0 )
+        {
+        // is hex
+        TPtrC string(aStr.Mid( KHexStart().Length( ) ) );
+
+        TLex lexer(string);
+        TUint val;
+        lexer.Val( val, EHex );
+        ret = val;
+        }
+    else
+        {
+        TLex lexer(aStr);
+        lexer.Val( ret );
+        }
+    return ret;
+    }
+
+// -----------------------------------------------------------------------------
+// From class MXCFWEngineObserver
+// 
+// -----------------------------------------------------------------------------
+//
+void CBSConfiguration::HandleEngineEventL( TXCFWEngineEvent aEvent )
+    {
+    // handle completion
+    if ( aEvent == EEvtParsingComplete )
+        {
+        LoadConfigurationL( );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// From class MXCFWEngineObserver
+// 
+// -----------------------------------------------------------------------------
+//
+void CBSConfiguration::HandleEngineErrorL( TInt /*aErrorCode*/)
+    {
+    }