// Copyright (c) 1998-2009 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:

// MTSR.CPP

//

#include "MSVRUIDS.H"

#include "MTSR.H"

#include "MTSRUT.H"

#include "MSVPANIC.H"

#include "MSVENTRY.H"

#include "MsvSecurityCapabilitySet.h"

#include <tmsvsystemprogress.h>

#include <e32uid.h>

#include <s32file.h>

#include <barsc.h>

#include <barsread.h>

#include <bautils.h>

#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS  

#include "cinstalledmtmgroup.h"

#include "msvconsts.h"				

#endif

_LIT(KDefaultRegistryFileStoreName, "\\private\\1000484b\\Mtm Registry v2");

const TUid KUidRegistryFileStore={0x10003C6A};

const TUid KUidRegistryRootStream={268439422};

const TInt KMtmInfoFileResourceId = 1;

const TInt KMtmCapabilitiesResourceId = 2;

const TInt KMtmSecurityCapabilitySetResourceId = 3;

EXPORT_C CBaseServerMtm::~CBaseServerMtm()

/** Destructor.

This cleans up the base class. CBaseServerMtm-derived objects are deleted by the 

Message Server when they are no longer required. 

Derived classes can implement a destructor to do any additional clean up tasks 

that they require. */

	{

	iRegisteredMtmDll.ReleaseLibrary();

	delete iServerEntry;

	}

/** Constructor. 

The function is passed a CMsvServerEntry object in aServerEntry. This object is used to access

and change Message Server entries. Its context is initially set either to the

parent of the entry or selection being operated on, or the entry itself. The

constructor stores it in the protected iServerEntry member.

Derived classes can implement a constructor to perform any additional MTM-specific 

setup that can be safely carried out in a constructor. Such constructors must call the 

base class constructor function.

@param aRegisteredMtmDll Registration data for the MTM DLL

@param aServerEntry Context on which to operate

*/

EXPORT_C CBaseServerMtm::CBaseServerMtm(CRegisteredMtmDll& aRegisteredMtmDll, CMsvServerEntry* aServerEntry):

	CActive(EPriorityStandard),	iServerEntry(aServerEntry), iRegisteredMtmDll(aRegisteredMtmDll)

	{

	}

EXPORT_C void CBaseServerMtm::RunL()

/** Provides a simple implementation of CActive::RunL() that calls the derived 

class's DoRunL() function. If that function leaves, then the leave is trapped, 

and DoComplete() is called to handle the error.

This implementation ensures that derived classes handle leave errors in RunL(), 

rather than the default of the error being passed to the active scheduler. */

	{

	DoRunL();

	}

/** Handles the cases where RunL is leaving.

*/

EXPORT_C TInt CBaseServerMtm::RunError(TInt aError)

	{

	DoComplete(aError);

	return KErrNone;

	}

/**

Returns a pointer to the interface with the specified Uid. 

This method is the first part of an extension pattern to allow for 

more functionality to be supported without adding virtual methods 

to this base class.

The default implementation returns a NULL pointer.

@param	aUid  

Uid of the extension interface

@return

Pointer to the extension interface

*/

EXPORT_C TAny* CBaseServerMtm::GetInterface(TUid /*aUid*/)

 	{

	return NULL;

 	}

/** 

This call leads to calling one of the server Mtms to populate the 

TMsvSystemProgress structure.

@param aOutSysProg The TMsvSystemProgress structure to be populated by the server

@return the error of the Extension_ method call

*/

EXPORT_C TInt CBaseServerMtm::SystemProgress(TMsvSystemProgress& aOutSysProg)

	{

	TAny* ptrNull = NULL;

	return Extension_(KUIDMsgMsvSystemProgress, ptrNull, &aOutSysProg);

	}

/**

Call to this method leads to call Extension_ method of server MTMs, to which

the thread handle of the client application is passed.

*/

#if (defined SYMBIAN_USER_PROMPT_SERVICE)	

TInt CBaseServerMtm::ClientThreadInfo(TThreadId aClientInfo, TBool aCapabilityCheck)

	{

	TAny* ptrNull = &aCapabilityCheck;

	return Extension_(KUIDMsgClientThreadInfo, ptrNull, &aClientInfo);

	}

#endif

TInt CBaseServerMtm::GetNonOperationMtmData(TNonOperationMtmDataType& aMtmDataType, TPtrC8& aResultBuffer)

	{

	TAny* mtmDataTypePtr = &aMtmDataType;

	return Extension_(KUidMsgNonOperationMtmData, mtmDataTypePtr, &aResultBuffer);

	}

/** The extension method provides a polymorphic behaviour to call the correct

SystemProgress function.

@param aExtensionId The Uid passed in as KUIDMsgMsvSystemProgress to obtain the

System Progress.

@return KErrExtensionNotSupported retuned if no Extension_ function is overriddden

by the derived class.

*/	

EXPORT_C TInt CBaseServerMtm::Extension_(TUint aExtensionId, TAny *&a0, TAny *a1)	

	{

	TInt ret = KErrNone;

	switch(aExtensionId)

		{

		case KUIDMsgMsvSystemProgress:

		case KUidMsgNonOperationMtmData:

#if (defined SYMBIAN_USER_PROMPT_SERVICE)	

		case KUIDMsgClientThreadInfo:

#endif		

			{

			ret = KErrExtensionNotSupported;

			}

			break;

		default:

			{

		// Chain to base class

			ret = CActive::Extension_(aExtensionId, a0, a1);

			}

			break;

		}

	return ret;

	}

// Empty declaration

EXPORT_C TInt CBaseServerMtm::ChangeEntriesL( const CMsvEntrySelection& /*aSelection*/,TInt /*aMark*/, TRequestStatus& aStatus )

    {

    //Empty declaration. Respective MTM implementation should be call .

    TRequestStatus aEmptyStatus;

    aEmptyStatus = aStatus ;

    return KErrNotSupported; // Specific to MTM. Base return Not supported.  

    }

EXPORT_C CServerMtmDllRegistry* CServerMtmDllRegistry::NewL(RFs& aFs,TTimeIntervalMicroSeconds32 aTimeoutMicroSeconds32)

	{

	return new(ELeave) CServerMtmDllRegistry(aFs,aTimeoutMicroSeconds32); 

	}

EXPORT_C CServerMtmDllRegistry::~CServerMtmDllRegistry()

	{

	}

EXPORT_C CBaseServerMtm* CServerMtmDllRegistry::NewServerMtmL(TUid aMtmTypeUid, CMsvServerEntry* aInitialEntry)

	{

	CleanupStack::PushL(aInitialEntry); // Take ownership of the server entry

	if(!IsPresent(aMtmTypeUid))

		User::Leave(KErrNotFound);

	TInt index=MtmTypeUidToIndex(aMtmTypeUid);

	CRegisteredMtmDll* registeredmtmdll=iRegisteredMtmDllArray[index];

	RLibrary mtmdlllibrary;

	User::LeaveIfError(registeredmtmdll->GetLibrary(iFs, mtmdlllibrary));

	TInt refcount = registeredmtmdll->MtmDllRefCount();

	CBaseServerMtm* servermtm = NULL;

	CleanupStack::Pop(); // aInitialEntry - function takes ownership of this

	TRAPD(ret, servermtm = NewMtmL(mtmdlllibrary, aInitialEntry, *registeredmtmdll));

	if ((ret!=KErrNone) && (registeredmtmdll->MtmDllRefCount()==refcount))  //  Library not released in mtm destructor

		registeredmtmdll->ReleaseLibrary();

	User::LeaveIfError(ret);

	return servermtm;

	}

CBaseServerMtm* CServerMtmDllRegistry::NewMtmL(const RLibrary& aLib, CMsvServerEntry* aServerEntry, CRegisteredMtmDll& aReg) const

	{

	CleanupStack::PushL(aServerEntry); // Take ownership of the server entry

	typedef CBaseServerMtm*(*NewServerMtmL)(CRegisteredMtmDll& aRegisteredMtmDll, CMsvServerEntry* aInitialEntry);

	TInt ordinal = aReg.MtmDllInfo().iEntryPointOrdinalNumber;

	TLibraryFunction libFunc = aLib.Lookup(ordinal);

	if (!libFunc)

		User::Leave(KErrBadLibraryEntryPoint);

	NewServerMtmL pFunc = (NewServerMtmL)libFunc;

	CleanupStack::Pop(); // aServerEntry - mtm should take ownership of this

	return (*pFunc)(aReg, aServerEntry);

	}

CServerMtmDllRegistry::CServerMtmDllRegistry(RFs& aFs,TTimeIntervalMicroSeconds32 aTimeoutMicroSeconds32):

	CMtmDllRegistry(aFs,KUidMtmServerComponent,aTimeoutMicroSeconds32)

	{

	__DECLARE_NAME(_S("CServerMtmDllRegistry"));

	}

CInstalledMtmGroupArray::CInstalledMtmGroupArray():

	CArrayPtrFlat<CInstalledMtmGroup>(8)

	{

	}

CInstalledMtmGroupArray::~CInstalledMtmGroupArray()

	{

	ResetAndDestroy();

	}

void CInstalledMtmGroupArray::AddInstalledMtmGroupL(CInstalledMtmGroup* aInstalledMtmGroup)

	{

	CleanupStack::PushL(aInstalledMtmGroup);

	AppendL(aInstalledMtmGroup);

	CleanupStack::Pop();

	}

EXPORT_C CMtmRegistryControl* CMtmRegistryControl::NewL(RFs& anFs,CServerMtmDllRegistry& aServerMtmDllRegistry)

	{

	CMtmRegistryControl* mtmregistrycontrol=new(ELeave) CMtmRegistryControl(anFs,aServerMtmDllRegistry);

	CleanupStack::PushL(mtmregistrycontrol);

	mtmregistrycontrol->ConstructL();

	CleanupStack::Pop();

	return mtmregistrycontrol;	

	}

EXPORT_C CMtmRegistryControl::~CMtmRegistryControl()

	{

	delete iInstalledMtmGroupArray;

	}

EXPORT_C TInt CMtmRegistryControl::InstallMtmGroup(const TDesC& aFullName,TUid& aMtmTypeUid)

	{

	aMtmTypeUid=KNullUid;

	// Install the mtm

	TRAPD(ret, DoInstallMtmGroupL(aFullName, aMtmTypeUid));

	if ((ret!=KErrNone) && (aMtmTypeUid!=KNullUid))

		RemoveInstalledMtmGroup(aMtmTypeUid);

	return ret;

	}

EXPORT_C TInt CMtmRegistryControl::FullNameToMtmTypeUid(const TDesC& aFullName,TUid& aMtmTypeUid) const

	{

	aMtmTypeUid=KNullUid;

	TRAPD(ret, aMtmTypeUid = DoFindMtmTypeUidL(aFullName));

	if (ret==KErrNone)

		{

		TUidType uidtype(KPermanentFileStoreLayoutUid, KUidMsvDataComponent, aMtmTypeUid);

		TInt index=UidTypeToIndex(uidtype);

		if (index==iInstalledMtmGroupArray->Count())

			ret=KErrNotFound;

		else 

			aMtmTypeUid=iInstalledMtmGroupArray->At(index)->iMtmGroupData->MtmTypeUid();

		}

	return ret;

	}

TBool CMtmRegistryControl::IsResFileL(const TDesC& aFullName) const

	{

	// Check the extension to see if it's a resource file

	TParse parse;

	User::LeaveIfError(parse.Set(aFullName, NULL, NULL));

	// If first alpha character of extension is 'r' assume we're dealing with a resource file

	TPtrC ext(parse.Ext());

	return ext.Length() > 1 && TCharF(ext[1]) == TCharF('r');

	}

TUid CMtmRegistryControl::DoFindMtmTypeUidL(const TDesC& aFullName) const

	{

	TUid mtmTypeUid = KNullUid;

	// Is the file a resource file?

	if (!IsResFileL(aFullName))

		{

		// Get the third Uid

		TEntry entry;

		User::LeaveIfError(iFs.Entry(aFullName, entry));

		mtmTypeUid = entry[2];

		}

	else

		{

		// Open the resource file

		RResourceFile file;

		file.OpenL(iFs, aFullName);

		CleanupClosePushL(file);

		HBufC8* res = file.AllocReadLC(1);

		// Interpret the resource buffer

		TResourceReader reader;

		reader.SetBuffer(res);

		// Get the mtm type

		mtmTypeUid = TUid::Uid(reader.ReadInt32());

		CleanupStack::PopAndDestroy(2); // res, file

		}

	// Return the Uid Type

	return mtmTypeUid;

	}

EXPORT_C TInt CMtmRegistryControl::DeInstallMtmGroup(TUid aMtmTypeUid)

	{

	TRAPD(ret,DoDeInstallMtmGroupL(aMtmTypeUid));

	if (ret!=KErrNone)

		{

		TInt index=MtmTypeUidToIndex(aMtmTypeUid);

		iInstalledMtmGroupArray->At(index)->iIsInstalled=ETrue;

		}

	return ret;

	}

EXPORT_C TInt CMtmRegistryControl::UseMtmGroup(TUid aMtmTypeUid)

	{

	TInt index=MtmTypeUidToIndex(aMtmTypeUid);

	__ASSERT_DEBUG(index<iInstalledMtmGroupArray->Count(),PanicServer(EMtsrInstalledMtmGroupNotPresent));

	iInstalledMtmGroupArray->At(index)->iClientUsageCount++;	

	return KErrNone;

	}

EXPORT_C TInt CMtmRegistryControl::ReleaseMtmGroup(TUid aMtmTypeUid)  

	{

	TInt index=MtmTypeUidToIndex(aMtmTypeUid);

	__ASSERT_DEBUG(index<iInstalledMtmGroupArray->Count(),PanicServer(EMtsrInstalledMtmGroupNotPresent));

	iInstalledMtmGroupArray->At(index)->iClientUsageCount--;	

	return KErrNone;

	}

EXPORT_C TBool CMtmRegistryControl::IsInUse(TUid aMtmTypeUid) const

	{

	TInt index=MtmTypeUidToIndex(aMtmTypeUid);

	__ASSERT_DEBUG(index<iInstalledMtmGroupArray->Count(),PanicServer(EMtsrInstalledMtmGroupNotPresent));

	return (*iInstalledMtmGroupArray->At(index)).iClientUsageCount>0;

	}

EXPORT_C TInt CMtmRegistryControl::FillRegisteredMtmDllArray(TUid aMtmDllTypeUid,CRegisteredMtmDllArray& aRegisteredMtmDllArray,TTimeIntervalMicroSeconds32 aTimeoutMicroSeconds32)  // Fill array with Dlls whose second uid is aMtmDllTypeUid

	{

	aRegisteredMtmDllArray.ResetAndDestroy();  //  Trash the array

	TUid mtmdlltypeuid[KMsvNumMtmDllTypes];  //  There must be an easier way to construct the array

	mtmdlltypeuid[EMtsrServerComponentIndex]	=KUidMtmServerComponent;

	mtmdlltypeuid[EMtsrClientComponentIndex]	=KUidMtmClientComponent;

	mtmdlltypeuid[EMtsrUiComponentIndex]		=KUidMtmUiComponent;

	mtmdlltypeuid[EMtsrUiDataComponentIndex]	=KUidMtmUiDataComponent;

/*

	mtmdlltypeuid[EMtsrDllTupe1Index]=KMsvDllType1Uid;

	mtmdlltypeuid[EMtsrDllType2Index]=KMsvDllType2Uid;

	mtmdlltypeuid[EMtsrDllType3Index]=KMsvDllType3Uid;

	mtmdlltypeuid[EMtsrDllType4Index]=KMsvDllType4Uid;

	mtmdlltypeuid[EMtsrDllType5Index]=KMsvDllType5Uid;

	mtmdlltypeuid[EMtsrDllType6Index]=KMsvDllType6Uid;

*/

	TInt index=0;

	for (; (index<KMsvNumMtmDllTypes) && (aMtmDllTypeUid!=mtmdlltypeuid[index]); index++)

		{

		}

	if (index==KMsvNumMtmDllTypes)

		return KErrNotSupported;

	TInt ret=KErrNone;

	TInt count1=iInstalledMtmGroupArray->Count();

	for (TInt i=0; i<count1; i++)

		{

		CMtmGroupData* mtmgroupdata=iInstalledMtmGroupArray->At(i)->iMtmGroupData;

		TInt count2=mtmgroupdata->MtmDllInfoArray().Count();

		if (index<count2)

			{

			CMtmDllInfo* mtmdllinfo=mtmgroupdata->MtmDllInfoArray()[index];

			if (mtmdllinfo->iUidType[2]!=KNullUid)

				{

				TRAP(ret,

					{	

					CRegisteredMtmDll* registeredmtmdll=CRegisteredMtmDll::NewL(mtmgroupdata->MtmTypeUid(),mtmgroupdata->TechnologyTypeUid(),*mtmdllinfo,aTimeoutMicroSeconds32,*this);

					// The following takes ownership of registeredmtmdll

					aRegisteredMtmDllArray.AddRegisteredMtmDllL(registeredmtmdll);

					});

				if (ret!=KErrNone)

					{

					aRegisteredMtmDllArray.ResetAndDestroy();

					break;

					}

				}

			}			

		}

	return ret;

	}

const CMtmGroupData& CMtmRegistryControl::GetMtmGroupDataReferenceL(TUid aMtmTypeUid) const

	{

	TInt index=MtmTypeUidToIndex(aMtmTypeUid);

	if (index==iInstalledMtmGroupArray->Count())

		User::Leave(KErrNotFound);

	return *(iInstalledMtmGroupArray->At(index)->iMtmGroupData);

	}

EXPORT_C CMtmGroupData* CMtmRegistryControl::GetMtmGroupDataL(TUid aMtmTypeUid) const

	{

	return CMtmGroupData::NewL(GetMtmGroupDataReferenceL(aMtmTypeUid));

	}

EXPORT_C void CMtmRegistryControl::StoreRegistryL() const

	{

	TParse parsedname;

	User::LeaveIfError(parsedname.Set(iPathName,NULL,NULL));

	TInt ret=iFs.MkDirAll(parsedname.DriveAndPath());

	if (ret!=KErrAlreadyExists)

		User::LeaveIfError(ret);

	CDictionaryFileStore* registryfilestore = CDictionaryFileStore::OpenLC(iFs,parsedname.FullName(),KUidRegistryFileStore);

	RDictionaryWriteStream writestream;

	writestream.AssignLC(*registryfilestore,KUidRegistryRootStream);

	ExternalizeL(writestream);

	writestream.CommitL();

	writestream.Close();

	registryfilestore->CommitL();

	CleanupStack::PopAndDestroy(2);	// writestream and registryfilestore

	}

EXPORT_C void CMtmRegistryControl::RestoreRegistryL()

	{

	TParse parsedname;

	User::LeaveIfError(parsedname.Set(iPathName,NULL,NULL));

	TEntry entry;

	User::LeaveIfError(iFs.Entry(parsedname.FullName(),entry));

	CDictionaryFileStore* registryfilestore = CDictionaryFileStore::OpenLC(iFs,parsedname.FullName(),KUidRegistryFileStore);

	RDictionaryReadStream readstream;

	readstream.OpenLC(*registryfilestore,KUidRegistryRootStream);

	InternalizeL(readstream);

	readstream.Close();

	CleanupStack::PopAndDestroy();// readstream

	CleanupStack::PopAndDestroy();	// registryfilestore

	}

EXPORT_C void CMtmRegistryControl::InternalizeL(RReadStream& aStream)

	{

	__ASSERT_DEBUG(iInstalledMtmGroupArray->Count()==0,PanicServer(EMtsrRegistryControlStillInUse));

	TRAPD(ret,DoInternalizeL(aStream))

	if (ret!=KErrNone)

		{

		iInstalledMtmGroupArray->ResetAndDestroy();

		iServerMtmDllRegistry.RemoveAllRegisteredMtmDlls();

		User::Leave(ret);

		}

	}

EXPORT_C void CMtmRegistryControl::ExternalizeL(RWriteStream& aStream) const

	{

	TInt count1=iInstalledMtmGroupArray->Count(),count2=0;

	TInt i=0;

	for (; i<count1; i++)

		if ((*iInstalledMtmGroupArray->At(i)).iIsInstalled)

			count2++;

	aStream.WriteInt32L(count2);

	for (i=0; i<count1; i++)

		if ((*iInstalledMtmGroupArray->At(i)).iIsInstalled)

			aStream << *(iInstalledMtmGroupArray->At(i)->iFilename);

	}

CMtmRegistryControl::CMtmRegistryControl(RFs& anFs,CServerMtmDllRegistry& aServerMtmDllRegistry):

	iFs(anFs),

	iInstalledMtmGroupArray(),

	iServerMtmDllRegistry(aServerMtmDllRegistry)

	{

	__DECLARE_NAME(_S("CMtmRegistryControl"));

	}

void CMtmRegistryControl::ConstructL()

	{

	iInstalledMtmGroupArray = new(ELeave) CInstalledMtmGroupArray();

	TChar iDriveChar= iFs.GetSystemDriveChar();

	TBuf<2> systemDrive;

	systemDrive.Append(iDriveChar);

	systemDrive.Append(KDriveDelimiter);

	iPathName=systemDrive;

	iPathName.Append(KDefaultRegistryFileStoreName);

	TRAPD(ret,RestoreRegistryL());  

	//should not delete registry if in use

	if ((ret!=KErrNone) && (ret!=KErrInUse))

		{

		//ignore error if we can't delete a corrupt file; StoreRegistryL will leave