/*

* Copyright (c) 2005 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:  source file for dm tree db client

*

*/

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

// Includes

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

#include <eikdll.h>

#include <apgcli.h>

#include <s32mem.h>

#include <nsmldmtreedbclient.h>

#include <nsmldmuri.h> //tarm

#include <SettingEnforcementInfo.h>

#include <nsmldebug.h>

#include "nsmldmcallbackserver.h"

#include "nsmldmcallbackserverdefs.h"

#include "nsmldmtreedtd.h" //tarm

//tarm start

_LIT8( KNSmlDmDefaultACLForDataWithoutServer, "Add=*&Get=*&Replace=*&Delete=*&Exec=*");

//tarm end

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

// LaunchServerL()

// Launches the server.

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

//

TInt LaunchServerL()

	{	

	TInt result = KErrNone;

	RFs fs;

	User::LeaveIfError( fs.Connect() );

    CleanupClosePushL( fs );

	TFindFile findFile( fs );

	RProcess server;

	User::LeaveIfError( server.Create( KNSmlDMCallbackExeName, KNullDesC ) );

	CleanupStack::PopAndDestroy(); // fs

	TRequestStatus status;

	server.Rendezvous( status );

	if ( status != KRequestPending )

		{

		server.Kill( 0 );	// abort startup

		server.Close();

		return KErrGeneral;	// status can be KErrNone: don't return status.Int()

		}

	else

		{

		server.Resume();	// logon OK - start the server

		}

	User::WaitForRequest( status );

	result = status.Int();

	if ( status == KErrNone )

		{

		server.Close();

		}

	return result;

	}

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

// RNSmlDMCallbackSession::RNSmlDMCallbackSession()

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

EXPORT_C RNSmlDMCallbackSession::RNSmlDMCallbackSession()

	{

	iEnforceCheckdone = 0;

	}

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

// RNSmlDMCallbackSession::~RNSmlDMCallbackSession()

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

EXPORT_C RNSmlDMCallbackSession::~RNSmlDMCallbackSession()

	{

	iLuids.ResetAndDestroy();

	iLuids.Close();

	}

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

// TInt RNSmlDMCallbackSession::Connect()

// Connect to the  server

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

EXPORT_C TInt RNSmlDMCallbackSession::Connect()

	{

	TInt result(KErrNone);

	TVersion ver ( KNSmlDmCallbackServerVersionMajor,

		KNSmlDmCallbackServerVersionMinor, 0  );

	result = CreateSession( KNSmlDmCallbackServerName, ver );

	if(result!=KErrNone)

		{

		TRAPD(error, result = LaunchServerL());

		if ( (error == KErrNone) && ( result == KErrNone ) )

			{

			result = CreateSession( KNSmlDmCallbackServerName, ver );

			}

		}

	return result;

	}

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

// TVersion RNSmlDMCallbackSession::Version()

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

TVersion RNSmlDMCallbackSession::Version(void) const

	{

	return(TVersion(KNSmlDmCallbackServerVersionMajor,

		KNSmlDmCallbackServerVersionMinor,0));

	}

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

// void RNSmlDMCallbackSession::Close()

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

EXPORT_C void RNSmlDMCallbackSession::Close()

	{

	SendReceive(ECmdDMCallbackCloseSession,TIpcArgs());

	RHandleBase::Close();

	}

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

// TInt RNSmlDMCallbackSession::ResourceCount()

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

EXPORT_C TInt RNSmlDMCallbackSession::ResourceCount()

	{

	//previously not initialised

	TInt count=0;

	TPckgBuf<TInt> pckg(count);

	SendReceive(ECmdDMCallbackResourceCount,TIpcArgs(&pckg));

	return pckg();

	}

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

// void RNSmlDMCallbackSession::SetServerL()

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

EXPORT_C void RNSmlDMCallbackSession::SetServerL(const TDesC8& aServer)

	{

	HBufC8* serverId = aServer.AllocLC();

	TPtr8 serverPtr = serverId->Des();

	TIpcArgs args(0,&serverPtr);

	User::LeaveIfError(SendReceive(ECmdDMCallbackSetServer,args));

	CleanupStack::PopAndDestroy(); //serverId

	}

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

// HBufC8* RNSmlDMCallbackSession::GetLuidAllocL()

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

EXPORT_C HBufC8* RNSmlDMCallbackSession::GetLuidAllocL(

	TUint32 aAdapterId,const TDesC8& aURI)

	{

	HBufC8* uri = aURI.AllocLC();

	TPtr8 uriPtr = uri->Des();

	TPckgBuf<TUint32> len;

	HBufC8* data=NULL;

	TIpcArgs args(aAdapterId,&uriPtr,0,&len);

	if(SendReceive(ECmdDMCallbackGetLuidLength,args)==KErrNone)

		{

		if(len())

			{

			data = HBufC8::NewLC(len());		

			TPtr8 dataPtr = data->Des();

			TIpcArgs args2(0,0,0,&dataPtr);

			SendReceive(ECmdDMCallbackGetLuid,args2);

			CleanupStack::Pop(); //data

			}

		else

			{

			data=KNullDesC8().AllocL();

			}

		}

	else

		{

		data = KNullDesC8().AllocL();

		}

	CleanupStack::PopAndDestroy(); //uri

	return data;

	}

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

// void RNSmlDMCallbackSession::GetUriSegListL()

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

EXPORT_C void RNSmlDMCallbackSession::GetUriSegListL(TUint32 aAdapterId,

	const TDesC8& aURI, CArrayFixFlat<TSmlDmMappingInfo>& aURISegList)

	{

	iLuids.ResetAndDestroy();

	HBufC8* uri = aURI.AllocLC();

	TPtr8 uriPtr = uri->Des();

	TPckgBuf<TUint32> len;

	HBufC8* data=NULL;

	TIpcArgs args(aAdapterId,&uriPtr,0,&len);

	if(SendReceive(ECmdDMCallbackGetSegmentListLength,args)==KErrNone)

		{

		if(len())

			{

			data = HBufC8::NewLC(len());

			TPtr8 dataPtr = data->Des();

			TIpcArgs args2(0,0,0,&dataPtr);

			SendReceive(ECmdDMCallbackGetSegmentList,args2);

			RDesReadStream readStream(dataPtr);

			CleanupClosePushL(readStream);

			TUint16 count = readStream.ReadUint16L();

			TUint8 length8;

			for(TInt i=0;i<count;i++)

				{

				length8 = readStream.ReadUint8L();

				HBufC8 *uriSeg =HBufC8::NewLC(length8);

				TPtr8 uriSegPtr = uriSeg->Des();

				readStream.ReadL(uriSegPtr,length8);

				length8 = readStream.ReadUint8L();

				HBufC8 *luid =HBufC8::NewLC(length8);

				TPtr8 luidPtr = luid->Des();

				readStream.ReadL(luidPtr,length8);

				iLuids.AppendL(luid);

				CleanupStack::Pop(); //luid

				TSmlDmMappingInfo mapInfo;

				mapInfo.iURISeg = TBufC8<KSmlMaxURISegLen>(uriSegPtr);

				mapInfo.iURISegLUID.Set(*luid);

				aURISegList.AppendL(mapInfo);

				CleanupStack::PopAndDestroy(); //uriSeg

				}

			CleanupStack::PopAndDestroy(2); //readStream,data

			}

		}

	CleanupStack::PopAndDestroy(); //uri

	}

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

// TInt RNSmlDMCallbackSession::AddMappingInfoL()

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

EXPORT_C TInt RNSmlDMCallbackSession::AddMappingInfoL(

	TUint32 aAdapterId, const TDesC8& aURI, const TDesC8& aLuid )

	{

	HBufC8* uri = aURI.AllocLC();

	TPtr8 uriPtr = uri->Des();

	HBufC8* luid = aLuid.AllocLC();

	TPtr8 luidPtr = luid->Des();

	TIpcArgs args(aAdapterId,&uriPtr,&luidPtr);

	TInt ret = SendReceive(ECmdDMCallbackAddMappingInfo,args);

	CleanupStack::PopAndDestroy(2); //uri, luid

    User::LeaveIfError(ret);

	return ret;

	}

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

// TInt RNSmlDMCallbackSession::RemoveMappingInfoL()

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

EXPORT_C TInt RNSmlDMCallbackSession::RemoveMappingInfoL(

	TUint32 aAdapterId, const TDesC8& aURI, TBool aChildAlso)

	{

	HBufC8* uri = aURI.AllocLC();

	TPtr8 uriPtr = uri->Des();

	TIpcArgs args(aAdapterId,&uriPtr,aChildAlso);

	TInt ret = SendReceive(ECmdDMCallbackRemoveMappingInfo,args);

	CleanupStack::PopAndDestroy(); //uri

    User::LeaveIfError(ret);

	return ret;

	}

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

// TInt RNSmlDMCallbackSession::RenameMappingL()

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

EXPORT_C TInt RNSmlDMCallbackSession::RenameMappingL(

	TUint32 aAdapterId, const TDesC8& aURI, const TDesC8& aObject )

	{

	HBufC8* uri = aURI.AllocLC();

	TPtr8 uriPtr = uri->Des();

	HBufC8* newName = aObject.AllocLC();

	TPtr8 newNamePtr = newName->Des();

	TIpcArgs args(aAdapterId,&uriPtr,&newNamePtr);

	TInt ret = SendReceive(ECmdDMCallbackRenameMapping,args);

	CleanupStack::PopAndDestroy(2); //uri,newName

    User::LeaveIfError(ret);

	return ret;

	}

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

// TInt RNSmlDMCallbackSession::UpdateMappingInfoL()

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

EXPORT_C void RNSmlDMCallbackSession::UpdateMappingInfoL(

	TUint32 aAdapterId, const TDesC8& aURI, CBufBase& aCurrentList)

	{

	HBufC8* uri = aURI.AllocLC();

	TPtr8 uriPtr = uri->Des();

	TPtr8 currentListPtr = aCurrentList.Ptr(0);

	TIpcArgs args(aAdapterId,&uriPtr,&currentListPtr);

	TInt ret = SendReceive(ECmdDMCallbackUpdateMapping,args);

    User::LeaveIfError(ret);

	CleanupStack::PopAndDestroy(); //uri

	}

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

// TInt RNSmlDMCallbackSession::DeleteAclL()

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

EXPORT_C TInt RNSmlDMCallbackSession::DeleteAclL(const TDesC8& aURI)

	{

	HBufC8* uri = aURI.AllocLC();

	TPtr8 uriPtr = uri->Des();

	TIpcArgs args(0,&uriPtr);

	TInt ret = SendReceive(ECmdDMCallbackDeleteAcl,args);

	CleanupStack::PopAndDestroy(); //uri

    User::LeaveIfError(ret);

	return ret;

	}

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

// TInt RNSmlDMCallbackSession::UpdateAclL()

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

EXPORT_C TInt RNSmlDMCallbackSession::UpdateAclL(

	const TDesC8& aURI,const TDesC8& aACL)

	{

	HBufC8* uri = aURI.AllocLC();

	TPtr8 uriPtr = uri->Des();

	HBufC8* acl = aACL.AllocLC();

	TPtr8 aclPtr = acl->Des();

	TIpcArgs args(0,&uriPtr,&aclPtr);

	TInt ret = SendReceive(ECmdDMCallbackUpdateAcl,args);

	CleanupStack::PopAndDestroy(2); //uri,acl

    User::LeaveIfError(ret);

	return ret;

	}

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

// TInt RNSmlDMCallbackSession::GetAclL()

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

EXPORT_C TInt RNSmlDMCallbackSession::GetAclL(const TDesC8& aURI,

	CBufBase& aACL,TBool /*aInherited*/)

    {    

    //If enforced pass parent uri to server and get that ACL    

    TInt enforced=KErrNotFound;    

    //connect to policy engine

    CSettingEnforcementInfo* info = CSettingEnforcementInfo::NewL();

    CleanupStack::PushL(info);        

    info->EnforcementActiveL(aURI, enforced);

    DBG_FILE_CODE(enforced,_S8("GetAclL tarm enforcement is"));    

    CleanupStack::PopAndDestroy(info);

    //In enforced case this method will be visited by trusted server only

    if( EEnforcedServer == enforced )

        {

        TPtrC8 parent;

        TInt foundpos = aURI.Locate('/');

        if(foundpos > 0)

            {

            parent.Set(aURI.Left(foundpos));

            }

        else

            {

            parent.Set(aURI);

            }

        HBufC8* uri = parent.AllocLC();

        TPtr8 uriPtr = uri->Des();

        TPckgBuf<TUint32> len;

        TIpcArgs args(0,&uriPtr,0,&len);

        TInt ret(KErrNotFound);

        if(SendReceive(ECmdDMCallbackGetAclLength,args)==KErrNone)

            {

            HBufC8* acl = HBufC8::NewLC(len());

            TPtr8 aclPtr = acl->Des();

            TIpcArgs args2(0,&uriPtr,0,&aclPtr);

            ret = SendReceive(ECmdDMCallbackGetAcl,args2);

            aACL.InsertL(0,aclPtr);

            CleanupStack::PopAndDestroy(); //acl

            }

        CleanupStack::PopAndDestroy(); //uri

        return ret;	

        }

    else

        {

        HBufC8* uri = aURI.AllocLC();

        TPtr8 uriPtr = uri->Des();

        TPckgBuf<TUint32> len;

        TIpcArgs args(0,&uriPtr,0,&len);

        TInt ret(KErrNotFound);

        if(SendReceive(ECmdDMCallbackGetAclLength,args)==KErrNone)

            {

            HBufC8* acl = HBufC8::NewLC(len());

            TPtr8 aclPtr = acl->Des();

            TIpcArgs args2(0,&uriPtr,0,&aclPtr);

            ret = SendReceive(ECmdDMCallbackGetAcl,args2);

            aACL.InsertL(0,aclPtr);

            CleanupStack::PopAndDestroy(); //acl

            }

        CleanupStack::PopAndDestroy(); //uri

        return ret;

        }

    }

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

// TBool RNSmlDMCallbackSession::CheckAclL()

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

EXPORT_C TBool RNSmlDMCallbackSession::CheckAclL(

	const TDesC8& aURI, TNSmlDmCmdType aCmdType)

	{

	HBufC8* uri = aURI.AllocLC();

	TPtr8 uriPtr = uri->Des();

	TPckgBuf<TBool> retVal;

	TBool ret(EFalse);

	TIpcArgs args(0,&uriPtr,TInt(aCmdType),&retVal);

	if(SendReceive(ECmdDMCallbackCheckAcl,args)==KErrNone)

		{

		ret = retVal();

		}

	CleanupStack::PopAndDestroy(); //uri

	return ret;

	}

//tarm start

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

// RNSmlDMCallbackSession::CheckDynamicAclL( const TDesC& aURI, TNSmlDmCmdType aCmdType)

// Does the ACL checking

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

EXPORT_C TBool RNSmlDMCallbackSession::CheckDynamicAclL(

        const TDesC8& aURI,

        TNSmlDmCmdType aCmdType,

        CNSmlDmMgmtTree *aMgmtTree

        )

    {

    //Check aURI enforced

    if(iEnforceCheckdone == 0)

        {

        TInt enforced=KErrNotFound;        

        //connect to policy engine

        CSettingEnforcementInfo* info = CSettingEnforcementInfo::NewL();

        CleanupStack::PushL(info);        

        info->EnforcementActiveL(aURI, enforced);

        DBG_FILE_CODE(enforced,_S8("CheckDynamicAclL tarm enforcement is"));        

        CleanupStack::PopAndDestroy(info);

        if(EEnforcedServer == enforced)

            {

            return ETrue;

            }

        else if(ENonEnforcedServer == enforced)

            {

            return EFalse;

            }

        else 

            {

            //behave as no enforcement case

            }

        }

    CBufFlat *acl = CBufFlat::NewL( 128 );

    CleanupStack::PushL( acl );

    //

    // NOTE: In here we make assumption that if acl is not defined,

    // function will return empty acl and NOT derived one.

    GetAclL( aURI, *acl, EFalse );

    TBool emptyACL = (acl->Size() == 0);

    CleanupStack::PopAndDestroy( acl );

    //

    // If we don't have ACL defined for this URI, check if default is needed

    //

    if( emptyACL )

        {

        //

        // Conditions:

        // 1. We have either dynamic node or static leaf

        // 2. All the parent nodes are static (non-dynamic)

        // 3. All the parent nodes except root node must not have ACL (?)

        //

        TBool uriExists = ETrue;

        TBool checkParents = EFalse;

        TBool nonStaticParents = EFalse;

        TBool parentHasACL = EFalse;

        CNSmlDmNodeList* nodelist = NULL;

        TNSmlDmDDFFormat format =

            aMgmtTree->FindNameFromNodeListL(aURI,nodelist);