contentpublishingsrv/contentpublishingutils/pluginvalidator/src/charvesterpluginvalidator.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:54:17 +0200
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/*
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  
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 *
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*/
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#include <e32property.h>
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#include <ecom/ecom.h>
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#include <mmf/common/mmfcontrollerpluginresolver.h>
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#include <contentharvesterplugin.h> // harvesting plugin
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#include "charvesterpluginvalidator.h"
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#include "cblacklisthandler.h"
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const TUint32 KInProgressPropertyKey	= { 0x1028000E };
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const TUint32 KHarvesterUid	= { 0x10282E5A };
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// ======== MEMBER FUNCTIONS ========
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// ----------------------------------------------------------------------------
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//
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// ----------------------------------------------------------------------------
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//
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EXPORT_C CHarvesterPluginValidator* CHarvesterPluginValidator::NewL( TUid aUid, 
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                                                   TAny *aParameter )
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    {
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    CHarvesterPluginValidator* self = 
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					CHarvesterPluginValidator::NewLC( aUid , aParameter );
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    CleanupStack::Pop( self );
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    return self;
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    }
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// ----------------------------------------------------------------------------
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//
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// ----------------------------------------------------------------------------
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//
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EXPORT_C CHarvesterPluginValidator* CHarvesterPluginValidator::NewLC( TUid aUid,
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                                                    TAny *aParameter )
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    {
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    CHarvesterPluginValidator* self = new( ELeave ) 
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				CHarvesterPluginValidator( aUid, aParameter );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// destructor
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// ---------------------------------------------------------------------------
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CHarvesterPluginValidator::~CHarvesterPluginValidator()
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    {
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    iInProgressProperty.Close( );
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    delete iBlacklist;
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    }
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// ----------------------------------------------------------------------------
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//
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// ----------------------------------------------------------------------------
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//
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CHarvesterPluginValidator::CHarvesterPluginValidator( TUid aUid, TAny* aParameter ): 
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											CPluginValidator(aUid, aParameter),
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                                            iStartup( ETrue )
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    {
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    }
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// ----------------------------------------------------------------------------
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//
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// ----------------------------------------------------------------------------
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//
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void CHarvesterPluginValidator::ConstructL()
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    {
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    iBlacklist = CBlacklistHandler::NewL( );    
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    CPluginValidator::ConstructL();
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    }
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// ----------------------------------------------------------------------------
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//
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// ----------------------------------------------------------------------------
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//
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void CHarvesterPluginValidator::ManagePluginsL()    
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    {
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    TInt errorCode = iInProgressProperty.Define( TUid::Uid( KHarvesterUid ), 
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        		KInProgressPropertyKey, RProperty::EInt );
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    if ( KErrAlreadyExists == errorCode )
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    	{
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    	TInt value(-1);
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    	iInProgressProperty.Get( TUid::Uid( KHarvesterUid ), 
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        		KInProgressPropertyKey, value);
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    	if ( value == 1 )
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    		{
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    		// property value == inprogress
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    		// there was a panic in the previous startup
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    		// so we make unofficial blacklist official
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    		iBlacklist->CopyBlacklistL( EFalse );
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    		}
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    	}
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    else
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    	{
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    	User::LeaveIfError( errorCode );
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    	}
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    // copy blacklisted plugins to unoffical blacklist at startup
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    iBlacklist->CopyBlacklistL( ETrue );
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    // set property value to 1 (which means "in progress")
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	iInProgressProperty.Set( TUid::Uid( KHarvesterUid ), 
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    		KInProgressPropertyKey, 1 );
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    CPluginValidator::ManagePluginsL();
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    if ( iStartup )
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    	{
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    	RProperty::Set( KPSUidActiveIdle2, 
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    		KActiveIdleCpsPluginsUpdated , EPSAiPluginsUpdated );
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    	iStartup = EFalse;
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    	}
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    // set property value to 0 (which means "finished")
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	iInProgressProperty.Set( TUid::Uid( KHarvesterUid ), 
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    		KInProgressPropertyKey, 0 );
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    }
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// ----------------------------------------------------------------------------
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//
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// ----------------------------------------------------------------------------
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//
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void CHarvesterPluginValidator::LoadPluginL( TPluginInfo& aPluginInfo )    
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    {
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    if ( !iBlacklist->IsPresentL( aPluginInfo.iImplementationUid ) )
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    	{
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    	//first we append UID to the blacklist
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    	iBlacklist->AppendL( aPluginInfo.iImplementationUid );
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    	TAny* plug ( NULL );
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    	TInt err( KErrNone );
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    	TRAP( err, plug = REComSession::CreateImplementationL( 
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										aPluginInfo.iImplementationUid, 
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										aPluginInfo.iDtor_ID_Key, iParameter ) );
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    	if( err==KErrNone && plug ) 
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    		{
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			TRAP_IGNORE( 
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				CleanupStack::PushL( plug );
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				aPluginInfo.iPlugin = plug;
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				iPluginArray.AppendL( aPluginInfo );
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				CleanupStack::Pop( plug );
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   				static_cast<CContentHarvesterPlugin*>( plug )->UpdateL()
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						);
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    		}
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    	//no panic during load so we can remove UID from blacklist
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    	iBlacklist->RemoveL( aPluginInfo.iImplementationUid );
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    	}
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    }
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   167
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   169