sl@0: // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // Sd_DbList.cpp
sl@0: // CDbNamesFactory class
sl@0: // "DBMS security" related - full DBMS security support
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include "SD_STD.H"
sl@0: #include "Sd_DbList.h"
sl@0: 
sl@0: using namespace DBSC;
sl@0: 
sl@0: extern TBool CheckDrivesL(const TDesC& aPath1, const TDesC& aPath2);
sl@0: 
sl@0: /**
sl@0: A global method, which can be used to check presence of the drive, supplied as
sl@0: a parameter.
sl@0: @param aFs File session instance.
sl@0: @param aDriveNumber Number of the drive, which will be checked. If there is no such drive
sl@0:                     in the system, the function leaves with KErrNotReady error code.
sl@0: @internalComponent.
sl@0: */
sl@0: void CheckDriveL(RFs& aFs, TDriveNumber aDriveNumber)
sl@0: 	{
sl@0: 	TDriveInfo driveInfo;
sl@0: 	__LEAVE_IF_ERROR(aFs.Drive(driveInfo, aDriveNumber));
sl@0: 	if(driveInfo.iType == EMediaNotPresent)
sl@0: 		{
sl@0: 		__LEAVE(KErrNotReady);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Standard phase-one factory method for CDbNamesFactory instances.
sl@0: @return A pointer to created CDbNamesFactory instance.
sl@0: */
sl@0: CDbNamesFactory* CDbNamesFactory::NewLC()
sl@0: 	{
sl@0: 	CDbNamesFactory* self = new (ELeave) CDbNamesFactory;
sl@0: 	CleanupStack::PushL(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: */
sl@0: CDbNamesFactory::~CDbNamesFactory()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Extracts the parameters from an EDbsDatabaseList aMessage.
sl@0: @param aMessage EDbsDatabaseList message
sl@0: @param aDriveNumber An output parameter, referencing the location, where the drive number will be stored.
sl@0: @param aDbPolicyRequest An output parameter, referencing the location, where the constructed 
sl@0:                         TDbPolicyRequest will be stored.
sl@0: */
sl@0: void CDbNamesFactory::ExtractArgs(const RMessage2& aMessage, 
sl@0: 								  TDriveNumber& aDriveNumber, 
sl@0: 								  TDbPolicyRequest& aDbPolicyRequest)
sl@0: 	{
sl@0: 	aDriveNumber = static_cast <TDriveNumber> (aMessage.Int0());
sl@0: 	aDbPolicyRequest.iUid = TUid::Uid(aMessage.Int1());
sl@0: 	aDbPolicyRequest.iAccessType = EATSecure;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Creates CDbDatabaseNames instance and return it.
sl@0: @param aDriveNumber The drive number to be searched.
sl@0: @param aDbPolicyRequest A const reference to an object packing the security policy UID and the 
sl@0:                   request type - secure/nonsecure.
sl@0: @param aDbPropsFactory A const reference to RDbPropsFactory instance, which methods will be used
sl@0:                   in the process of constructing the list of CDbDatabaseNames names.
sl@0: @param aFs A file session instance.
sl@0: @return A pointer to the created CDbDatabaseNames instance.
sl@0: */
sl@0: CDbDatabaseNames* CDbNamesFactory::DbNamesLC(TDriveNumber& aDriveNumber, 
sl@0: 										     const TDbPolicyRequest& aDbPolicyRequest, 
sl@0: 											 const RDbPropsFactory& aDbPropsFactory, 
sl@0: 											 RFs& aFs)
sl@0: 	{
sl@0: 	::CheckDriveL(aFs, aDriveNumber);
sl@0: 	aDbPropsFactory.GetPrivatePathL(aDriveNumber, iDbPath);
sl@0: 	ConstructSearchPattern(aDbPolicyRequest);
sl@0: 	CDbDatabaseNames* dbNames = CDbDatabaseNames::NewLC();
sl@0: 	SearchL(aFs, dbNames);
sl@0: 	return dbNames;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: */
sl@0: CDbNamesFactory::CDbNamesFactory()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Constructs search pattern for the database file names.
sl@0: iDbPath & iDbNameCmnPart data members get initialized after the call.
sl@0: @param aDbPolicyRequest A const reference to an object packing the security policy UID and the 
sl@0:                   request type - secure/nonsecure.
sl@0: */
sl@0: void CDbNamesFactory::ConstructSearchPattern(const TDbPolicyRequest& aDbPolicyRequest)
sl@0: 	{
sl@0: 	__ASSERT(iDbPath.Length() > 0);
sl@0: 	RDbPropsFactory::ConstructCommonPart(aDbPolicyRequest.iUid, iDbNameCmnPart);
sl@0: 	iDbNameCmnPart.Append('*');
sl@0: 	__ASSERT(iDbNameCmnPart.Length() > 0);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Searches for databases in DBMS private directory and fill aDbNames container.
sl@0: @param aFs A file session instance.
sl@0: @param aDbNames An output parameter, where the database names will be stored.
sl@0: @leave One of the system-wide error codes, excluding KErrNotFound.
sl@0: */
sl@0: void CDbNamesFactory::SearchL(RFs& aFs, CDbDatabaseNames* aDbNames)
sl@0: 	{
sl@0: 	__ASSERT(aDbNames);
sl@0: 	TFindFile findFile(aFs);
sl@0: 	CDir* paths = NULL;
sl@0: 	TInt err = findFile.FindWildByDir(iDbNameCmnPart, iDbPath, paths);
sl@0: 	if(err == KErrNone)
sl@0: 		{
sl@0: 		__ASSERT(paths);
sl@0: 		CleanupStack::PushL(paths);
sl@0: 		if(::CheckDrivesL(iDbPath, findFile.File()))
sl@0: 			{
sl@0: 			TInt cnt = paths->Count();
sl@0: 			for(TInt i=0;i<cnt;++i)
sl@0: 				{
sl@0: 				const ::TEntry& entry = (*paths)[i];
sl@0: 				//Reuse iDbPath, it is not needed anymore
sl@0: 				TDes& name = iDbPath;
sl@0: 				name.Copy(entry.iName);
sl@0: 				RDbPropsFactory::StripCommonPart(name);
sl@0: 				if (name.Length()<=KDbMaxName)
sl@0: 				    {
sl@0: 				    aDbNames->AddL(name);
sl@0: 				    }
sl@0: 				}
sl@0: 			}
sl@0: 		CleanupStack::PopAndDestroy(paths);
sl@0: 		}
sl@0: 	else if(err != KErrNotFound)
sl@0: 		{
sl@0: 		__LEAVE(err);
sl@0: 		}
sl@0: 	}