/**

 * Copyright (c) 2010 Sasken Communication Technologies Ltd.

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the "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:

 * Chandradeep Gandhi, Sasken Communication Technologies Ltd - Initial contribution

 *

 * Contributors:

 * Manasij Roy, Nalina Hariharan

 * 

 * Description:

 * The Plugin util class provides the information required for the 

 * plugins from Smf framework 

 *

 */

#include <smfpluginutil.h>

/**

 * Constructor

 */

SmfPluginUtil::SmfPluginUtil ( )

	{

	m_jsonParser = new QJson::Parser;

	}

/**

 * Destructor

 */

SmfPluginUtil::~SmfPluginUtil ( )

	{

	if(m_jsonParser)

		delete m_jsonParser;

	}

/**

* Read JSON string from the I/O Device and converts it to a QVariant object

* @param io Input output device

* @param ok if a conversion error occurs, *ok is set to false; otherwise *ok is set to true.

* @returns a QVariant object generated from the JSON string

*/

QVariant SmfPluginUtil::parse ( QIODevice* io, bool* ok )

	{

	return m_jsonParser->parse(io, ok);

	}

/**

* This is a method provided for convenience.

* @param jsonData data containing the JSON object representation

* @param ok if a conversion error occurs, *ok is set to false; otherwise *ok is set to true.

* @returns a QVariant object generated from the JSON string

* @sa errorString

* @sa errorLine

*/

QVariant SmfPluginUtil::parse ( const QByteArray& jsonData, bool* ok )

	{

	return m_jsonParser->parse(jsonData, ok);

	}

/**

* This method returns the error message tha ocuured during last parsing

* @returns a QString object containing the error message of the last parse operation

*/

QString SmfPluginUtil::errorString ( ) const

	{

	return m_jsonParser->errorString();

	}

/**

* This method returns line number where the last QJson parsing error occurred

* @returns the line number where the error occurred

 */

int SmfPluginUtil::errorLine ( ) const

	{

	return m_jsonParser->errorLine();

	}

/**

 * Method called by plugins to get the OAuth Keys.

 * @param aKeys [out] The OAuth keys

 * @param aRegToken The plugin's registration token

 * @param aValidity The validity of the keys

 * @param aPluginID The ID of the plugin that requests for 

 * the OAuth keys

 */

void SmfPluginUtil::getAuthKeys( SmfAuthParams &aKeys, 

		const QString aRegToken, 

		const QDateTime& aValidity,

		const QString aPluginID )

	{

	aKeys.clear();

	// Invalid arguments

	if( (0 == aRegToken.size()) || 

		(0 == aPluginID.size()) || 

		(aValidity.isNull()) )

		return;

	// Call Credential manager function to get the keys passing the registration token and the plugin

	SmfCredMgrClient csmClient;

	csmClient.AuthDataSet(aRegToken,aValidity,aKeys);

	}

/**

 * Method called by plugins to get the Nonce value

 * @param aNonceString [out] The Nonce string

 * @param aLength Lenth of the NONCE tobe generated

 */

void SmfPluginUtil::getNonce( QString &aNonceString, const qint64 aLength )

	{

	aNonceString.clear();

	// Invalid argument

	if(aLength < 0)

		return;

	// Call Credential manager function to get the nonce string

	SmfCredMgrClient csmClient;

	aNonceString = csmClient.GenerateNONCE(aLength);

	}

/**

 * Method called by plugins to generate a parameters string required to 

 * access Protected Resources using OAuth authorization.

 * @param aRequestUrl The request URL

 * @param aOperation The type of http operation

 * @param aToken The access token

 * @param aTokenSecret The token secret

 * @param aSignatureMethod The signature method to be used

 * @param aParams A map of parameters to its values

 * @param aMode The mode of creation of the request

 * @return The cretd parameter string

 */

QByteArray SmfPluginUtil::createParameterString( const QString &aRequestUrl, 

		QNetworkAccessManager::Operation aOperation, 

		const QByteArray &aToken, 

		const QByteArray &aTokenSecret, 

		const SmfSignatureMethod aSignatureMethod, 

		const QMultiMap<QByteArray, QByteArray> &aParams, 

		const SmfParsingMode aMode)

	{

	Q_UNUSED(aRequestUrl)

	Q_UNUSED(aOperation)

	Q_UNUSED(aToken)

	Q_UNUSED(aTokenSecret)

	Q_UNUSED(aSignatureMethod)

	Q_UNUSED(aParams)

	Q_UNUSED(aMode)

	return QByteArray();

	//// Call Credential manager function to create and sign the parameter string

	}