/*

* Copyright (c) 2001-2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  EAP and WLAN authentication protocols.

*

*/

// This is enumeration of EAPOL source code.

#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

	#undef EAP_FILE_NUMBER_ENUM

	#define EAP_FILE_NUMBER_ENUM 294 

	#undef EAP_FILE_NUMBER_DATE 

	#define EAP_FILE_NUMBER_DATE 1127594498 

#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

// INCLUDE FILES

#include "EapMsChapV2DbUtils.h"

#include "EapMsChapV2DbDefaults.h"

#include "EapMsChapV2DbParameterNames.h"

#include "eap_am_trace_symbian.h"

const TUint KMaxSqlQueryLength = 512;

const TInt KMicroSecsInAMinute = 60000000; // 60000000 micro seconds is 1 minute.

// ================= MEMBER FUNCTIONS =======================

void EapMsChapV2DbUtils::OpenDatabaseL(RDbNamedDatabase& aDatabase, RDbs& aSession, const TIndexType aIndexType,

	const TInt aIndex, const eap_type_value_e aTunnelingType)

{

#ifdef USE_EAP_EXPANDED_TYPES

	TUint aTunnelingVendorType = aTunnelingType.get_vendor_type();

#else

	TUint aTunnelingVendorType = static_cast<TUint>(aTunnelingType);

#endif //#ifdef USE_EAP_EXPANDED_TYPES

	EAP_TRACE_DEBUG_SYMBIAN((_L("EapMsChapV2DbUtils::OpenDatabaseL -Start- aIndexType=%d, aIndex=%d, aTunnelingVendorType=%d \n"),

	aIndexType,aIndex,aTunnelingVendorType) );

	// 1. Open/create a database	

	// Connect to the DBMS server.

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

	CleanupClosePushL(aSession);	

	// aSession and aDatabase are pushed to the cleanup stack even though they may be member

	// variables of the calling class and would be closed in the destructor anyway. This ensures

	// that if they are not member variables they will be closed. Closing the handle twice

	// does no harm.	

#ifdef SYMBIAN_SECURE_DBMS

	// Create the secure shared database with the specified secure policy.

	// Database will be created in the data caging path for DBMS (C:\private\100012a5).

	TInt err = aDatabase.Create(aSession, KDatabaseName, KSecureUIDFormat);

	EAP_TRACE_DEBUG_SYMBIAN((_L("EapMsChapV2DbUtils::OpenDatabaseL - Created Secure DB for eapmsmhapv2.dat. err=%d\n"), err));

	if(err == KErrNone)

	{

		aDatabase.Close();

	} else if (err != KErrAlreadyExists) 

	{

		User::LeaveIfError(err);

	}

	User::LeaveIfError(aDatabase.Open(aSession, KDatabaseName, KSecureUIDFormat));

	CleanupClosePushL(aDatabase);		

#else

	// For non-secured database. The database will be created in the old location (c:\system\data).

	RFs fsSession;		

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

	CleanupClosePushL(fsSession);	

	TInt err = aDatabase.Create(fsSession, KDatabaseName);

	EAP_TRACE_DEBUG_SYMBIAN((_L("EapMsChapV2DbUtils::OpenDatabaseL - Created Non-Secure DB for eapmsmhapv2.dat. err=%d\n"), err));

	if(err == KErrNone)

	{

		aDatabase.Close();

	} else if (err != KErrAlreadyExists) 

	{

		User::LeaveIfError(err);

	}

	CleanupStack::PopAndDestroy(); // close fsSession

	User::LeaveIfError(aDatabase.Open(aSession, KDatabaseName));

	CleanupClosePushL(aDatabase);		

#endif // #ifdef SYMBIAN_SECURE_DBMS

// 2. Create the MSCHAPv2 table to database (ignore error if database exists)

// Table columns:

//// NAME ///////////////////////////////////////////////// TYPE ////////////// Constant /////////

//| ServiceType                                         | UNSIGNED INTEGER  | KServiceType      |//

//| ServiceIndex                                        | UNSIGNED INTEGER  | KServiceIndex     |//

//| TunnelingType                                       | UNSIGNED INTEGER  | KTunnelingType    |//

//| EAP_MSCHAPV2_password_prompt                        | UNSIGNED INTEGER  | cf_str_EAP_MSCHAPV2_password_prompt_literal   |//

//| EAP_MSCHAPV2_username                               | VARCHAR(255)      | cf_str_EAP_MSCHAPV2_username_literal         |//

//| EAP_MSCHAPV2_password                               | VARCHAR(255)      | cf_str_EAP_MSCHAPV2_password_literal         |//

//| EAP_MSCHAPv2_max_session_validity_time				| BIGINT		   	| cf_str_EAP_MSCHAPv2_max_session_validity_time_literal   |//

//| EAP_MSCHAPv2_last_full_authentication_time			| BIGINT		   	| KMSCHAPv2LastFullAuthTime	|//

//////////////////////////////////////////////////////////////////////////////////////////////////

	HBufC* buf = HBufC::NewLC(KMaxSqlQueryLength);

	TPtr sqlStatement = buf->Des();

	_LIT(KSQLCreateTable1, "CREATE TABLE %S (%S UNSIGNED INTEGER, \

											 %S UNSIGNED INTEGER, \

											 %S UNSIGNED INTEGER, \

											 %S UNSIGNED INTEGER, \

											 %S VARCHAR(255), \

											 %S VARCHAR(255), \

											 %S BIGINT, \

											 %S BIGINT)");

	sqlStatement.Format(KSQLCreateTable1,

						&KMsChapV2TableName,

						&KServiceType,

						&KServiceIndex,

						&KTunnelingType,

						&cf_str_EAP_MSCHAPV2_password_prompt_literal,

						&cf_str_EAP_MSCHAPV2_username_literal,

						&cf_str_EAP_MSCHAPV2_password_literal,

						&cf_str_EAP_MSCHAPv2_max_session_validity_time_literal, 

						&KMSCHAPv2LastFullAuthTime);

	err = aDatabase.Execute(sqlStatement);

	if (err != KErrNone && err != KErrAlreadyExists)

	{

		User::Leave(err);

	}

	// 4. Check if database table contains a row for this service type and id  

	_LIT(KSQLQueryRow, "SELECT %S FROM %S WHERE %S=%d AND %S=%d AND %S=%d");

	sqlStatement.Format(KSQLQueryRow,

						&cf_str_EAP_MSCHAPV2_username_literal,

						&KMsChapV2TableName,

						&KServiceType,

						aIndexType,

						&KServiceIndex,

						aIndex,

						&KTunnelingType, 

						aTunnelingVendorType);

	RDbView view;

	User::LeaveIfError(view.Prepare(aDatabase, TDbQuery(sqlStatement), TDbWindow::EUnlimited));

	// View must be closed when no longer needed

	CleanupClosePushL(view);

	User::LeaveIfError(view.EvaluateAll());

	// 5. If row is not found then add it

	TInt rows = view.CountL();

	CleanupStack::PopAndDestroy(); // view

	if (rows == 0)

	{

		_LIT(KSQLInsert, "SELECT * FROM %S");

		sqlStatement.Format(KSQLInsert, &KMsChapV2TableName);		

		view.Prepare(aDatabase, TDbQuery(sqlStatement), TDbWindow::EUnlimited, RDbView::EInsertOnly);

		CleanupClosePushL(view);

		// Get column set so we get the correct column numbers

		CDbColSet* colSet = view.ColSetL();		

		CleanupStack::PushL(colSet);

		view.InsertL();

		view.SetColL(colSet->ColNo(KServiceType), static_cast<TInt> (aIndexType));

		view.SetColL(colSet->ColNo(KServiceIndex), aIndex);

		view.SetColL(colSet->ColNo(KTunnelingType), aTunnelingVendorType);

		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_prompt_literal), default_EAP_MSCHAPV2_password_prompt);

		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_username_literal), default_EAP_MSCHAPV2_username);

		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_literal), default_EAP_MSCHAPV2_password);

		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPv2_max_session_validity_time_literal), default_MaxSessionTime);

		view.SetColL(colSet->ColNo(KMSCHAPv2LastFullAuthTime), default_FullAuthTime);		

		view.PutL();

		CleanupStack::PopAndDestroy( colSet ); // Delete colSet.

		CleanupStack::PopAndDestroy( &view ); // Close view.		

	} 

	CleanupStack::PopAndDestroy( buf ); // Delete buf	

	CleanupStack::Pop( &aDatabase );	

	CleanupStack::Pop( &aSession );	

	aDatabase.Compact();

}

void EapMsChapV2DbUtils::SetIndexL(

	RDbNamedDatabase& aDatabase, 		

	const TIndexType aIndexType,

	const TInt aIndex,

	const eap_type_value_e aTunnelingType,

	const TIndexType aNewIndexType,

	const TInt aNewIndex,

	const eap_type_value_e aNewTunnelingType)

{

#ifdef USE_EAP_EXPANDED_TYPES

	TUint aTunnelingVendorType = aTunnelingType.get_vendor_type();

	TUint aNewTunnelingVendorType = aNewTunnelingType.get_vendor_type();

#else

	TUint aTunnelingVendorType = static_cast<TUint>(aTunnelingType);

	TUint aNewTunnelingVendorType = static_cast<TUint>(aNewTunnelingType);

#endif //#ifdef USE_EAP_EXPANDED_TYPES

	HBufC* buf = HBufC::NewLC(KMaxSqlQueryLength);

	TPtr sqlStatement = buf->Des();

	_LIT(KSQL, "SELECT * FROM %S WHERE %S=%d AND %S=%d AND %S=%d");

	sqlStatement.Format(KSQL, &KMsChapV2TableName, 

		&KServiceType, aIndexType, &KServiceIndex, aIndex, &KTunnelingType, aTunnelingVendorType);

	RDbView view;

	User::LeaveIfError(view.Prepare(aDatabase, TDbQuery(sqlStatement), TDbWindow::EUnlimited));

	// View must be closed when no longer needed

	CleanupClosePushL(view);

	User::LeaveIfError(view.EvaluateAll());

	TInt rows = view.CountL();

	if (rows == 0)

	{

		User::Leave(KErrNotFound);

	}

	// Get the first (and only) row

	view.FirstL();

	view.GetL();				

	// Get column set so we get the correct column numbers

	CDbColSet* colSet = view.ColSetL();

	CleanupStack::PushL(colSet);

	view.UpdateL();

    view.SetColL(colSet->ColNo(KServiceType), static_cast<TUint>(aNewIndexType));

    view.SetColL(colSet->ColNo(KServiceIndex), aNewIndex);

    view.SetColL(colSet->ColNo(KTunnelingType), aNewTunnelingVendorType);

    view.PutL();

	CleanupStack::PopAndDestroy(3); // view, colset, buf

}

void EapMsChapV2DbUtils::SetConfigurationL(

	RDbNamedDatabase& aDatabase,

	const EAPSettings& aSettings, 

	const TIndexType aIndexType,

	const TInt aIndex,

	const eap_type_value_e aTunnelingType)

{

#ifdef USE_EAP_EXPANDED_TYPES

	TUint aTunnelingVendorType = aTunnelingType.get_vendor_type();

#else

	TUint aTunnelingVendorType = static_cast<TUint>(aTunnelingType);

#endif //#ifdef USE_EAP_EXPANDED_TYPES

	// Check if the settings are for the correct type

	if (aSettings.iEAPType != EAPSettings::EEapMschapv2 &&

		aSettings.iEAPType != EAPSettings::EPlainMschapv2)

	{

		User::Leave(KErrNotSupported);

	}

	HBufC* buf = HBufC::NewLC(KMaxSqlQueryLength);

	TPtr sqlStatement = buf->Des();	

	RDbView view;

	_LIT(KSQLQuery, "SELECT * FROM %S WHERE %S=%d AND %S=%d AND %S=%d");

	sqlStatement.Format(KSQLQuery, &KMsChapV2TableName, 

		&KServiceType, aIndexType, &KServiceIndex, aIndex, &KTunnelingType, aTunnelingVendorType);

	// Evaluate view

	User::LeaveIfError(view.Prepare(aDatabase, TDbQuery(sqlStatement)));

	CleanupClosePushL(view);

	User::LeaveIfError(view.EvaluateAll());	

	view.FirstL();

	view.UpdateL();

	// Get column set so we get the correct column numbers

	CDbColSet* colSet = view.ColSetL();

	CleanupStack::PushL(colSet);

	// Username

	if (aSettings.iUsernamePresent)

	{

		// Validate length.

		if(aSettings.iUsername.Length() > KMaxUsernameLengthInDB)

		{

			// Username too long. Can not be stored in DB.

			EAP_TRACE_DEBUG_SYMBIAN((_L("EapMsChapV2DbUtils::SetConfigurationL: Too long Username. Length=%d \n"),

			aSettings.iUsername.Length()));

			User::Leave(KErrArgument);

		}

		// Length is ok. Set the value in DB.

		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_username_literal), aSettings.iUsername);		

	}

	// Password

	if (aSettings.iPasswordPresent)

	{

		// Validate length.

		if(aSettings.iPassword.Length() > KMaxPasswordLengthInDB)

		{

			// Password too long. Can not be stored in DB.

			EAP_TRACE_DEBUG_SYMBIAN((_L("EapMsChapV2DbUtils::SetConfigurationL: Too long Password. Length=%d \n"),

			aSettings.iPassword.Length()));

			User::Leave(KErrArgument);

		}

		// Length is ok. Set the value in DB.	

		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_literal), aSettings.iPassword);

		// If password was supplied set password prompting off

		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_prompt_literal), EMSCHAPV2PasswordPromptOff);		

	}

	// Session validity time

	if (aSettings.iSessionValidityTimePresent)

	{

		// User or device management wants to store the session validity time.

		// Convert the time to micro seconds and save.

		TInt64 validityInMicro = (aSettings.iSessionValidityTime) *  KMicroSecsInAMinute;

		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPv2_max_session_validity_time_literal), validityInMicro);

		// If max session validity time is supplied and non-zero, set password prompting ON.

		// It doesn't matter even if the password is supplied. If max session validity is supplied,

		// it means user needs to provide a password hence prompt should appear.

		if( validityInMicro != 0)

		{

			view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_prompt_literal), EMSCHAPV2PasswordPromptOn);

		}		

	}

	// Last full authentication time should be made zero when EAP configurations are modified.

	// This makes sure that the next authentication with this EAP would be full authentication

	// instead of reauthentication even if the session is still valid.

	view.SetColL(colSet->ColNo(KMSCHAPv2LastFullAuthTime), default_FullAuthTime);

	EAP_TRACE_DEBUG_SYMBIAN((_L("Session Validity: EAP-Type=%d, Resetting Full Auth Time since settings are modified\n"),

								aSettings.iEAPType ));

	view.PutL();

	CleanupStack::PopAndDestroy(3); // view, colset, buf

}

void EapMsChapV2DbUtils::GetConfigurationL(

	RDbNamedDatabase& aDatabase,

	EAPSettings& aSettings, 

	const TIndexType aIndexType,

	const TInt aIndex,

	const eap_type_value_e aTunnelingType)

{

#ifdef USE_EAP_EXPANDED_TYPES

	TUint aTunnelingVendorType = aTunnelingType.get_vendor_type();

#else

	TUint aTunnelingVendorType = static_cast<TUint>(aTunnelingType);

#endif //#ifdef USE_EAP_EXPANDED_TYPES

	HBufC* buf = HBufC::NewLC(KMaxSqlQueryLength);

	TPtr sqlStatement = buf->Des();	

	RDbView view;

	// Form the query

	_LIT(KSQLQuery, "SELECT * FROM %S WHERE %S=%d AND %S=%d AND %S=%d");

	sqlStatement.Format(KSQLQuery, &KMsChapV2TableName, 

		&KServiceType, aIndexType, &KServiceIndex, aIndex, &KTunnelingType, aTunnelingVendorType);

	// Evaluate view

	User::LeaveIfError(view.Prepare(aDatabase, TDbQuery(sqlStatement)));

	CleanupClosePushL(view);

	User::LeaveIfError(view.EvaluateAll());

	// Get the first (and only) row

	view.FirstL();

	view.GetL();

	// Get column set so we get the correct column numbers

	CDbColSet* colSet = view.ColSetL();

	CleanupStack::PushL(colSet);

	aSettings.iEAPType = EAPSettings::EEapMschapv2; 

	// Username

	TPtrC username = view.ColDes(colSet->ColNo(cf_str_EAP_MSCHAPV2_username_literal));

	aSettings.iUsername.Copy(username);

	aSettings.iUsernamePresent = ETrue;

	// Password

	TPtrC password = view.ColDes(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_literal));

	aSettings.iPassword.Copy(password);

	aSettings.iPasswordPresent = ETrue;

	// Session validity time	

	TInt64 maxSessionTimeMicro = view.ColInt64(colSet->ColNo(cf_str_EAP_MSCHAPv2_max_session_validity_time_literal));

	// Convert the time to minutes.	

	TInt64 maxSessionTimeMin = maxSessionTimeMicro / KMicroSecsInAMinute;

	aSettings.iSessionValidityTime = static_cast<TUint>(maxSessionTimeMin);

	aSettings.iSessionValidityTimePresent = ETrue;

	CleanupStack::PopAndDestroy(3); // view, colset, buf

}

void EapMsChapV2DbUtils::CopySettingsL(

	RDbNamedDatabase& aDatabase, 		

	const TIndexType aSrcIndexType,

	const TInt aSrcIndex,

	const eap_type_value_e aSrcTunnelingType,

	const TIndexType aDestIndexType,

	const TInt aDestIndex,

	const eap_type_value_e aDestTunnelingType)

{

#ifdef USE_EAP_EXPANDED_TYPES

	TUint aSrcTunnelingVendorType = aSrcTunnelingType.get_vendor_type();

	TUint aDestTunnelingVendorType = aDestTunnelingType.get_vendor_type();

#else

	TUint aSrcTunnelingVendorType = static_cast<TUint>(aSrcTunnelingType);

	TUint aDestTunnelingVendorType = static_cast<TUint>(aDestTunnelingType);

#endif //#ifdef USE_EAP_EXPANDED_TYPES

	HBufC* buf = HBufC::NewLC(KMaxSqlQueryLength);

	TPtr sqlStatement = buf->Des();

	_LIT(KSQL, "SELECT * FROM %S WHERE %S=%d AND %S=%d AND %S=%d");

	sqlStatement.Format(KSQL, &KMsChapV2TableName, 

		&KServiceType, aSrcIndexType, &KServiceIndex, aSrcIndex, &KTunnelingType, aSrcTunnelingVendorType);

	RDbView view;

	User::LeaveIfError(view.Prepare(aDatabase, TDbQuery(sqlStatement), TDbWindow::EUnlimited));

	// View must be closed when no longer needed

	CleanupClosePushL(view);

	User::LeaveIfError(view.EvaluateAll());

	TInt rows = view.CountL();

	if (rows == 0)

	{

		User::Leave(KErrNotFound);

	}

	// Get the first (and only) row

	view.FirstL();

	view.GetL();

	view.InsertCopyL();

	// Get column set so we get the correct column numbers