/*

* Copyright (c) 2008 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:

*

*/

package com.nokia.mj.impl.gcf.protocol.mms;

import java.lang.String;

import com.nokia.mj.impl.utils.Uid;

import com.nokia.mj.impl.gcf.PushValidator;

import com.nokia.mj.impl.mms.MMSPermissionImpl;

import com.nokia.mj.impl.rt.support.ApplicationUtils;

/**

 * This is implementation for validation of URI and 'filter' push arguments for

 * MMS.

 */

public class PushValidatorImpl extends PushValidator

{

    private static final String MMS_PREFIX = "mms://:";

    private final String INVALID_URI = "Invalid MMS URI";

    public PushValidatorImpl()

    {

    }

    /**

     * Validates both Uri and Filter

     * @param aUri Uri to be validated

     * @param aFilter filter to be validated

     */

    public void validate(String aUri, String aFilter, Uid aSuiteUid,

                         String aMidletName, boolean aIsStaticRegistration)

    {

        if (!(aUri.startsWith(MMS_PREFIX)))

        {

            throw new IllegalArgumentException(INVALID_URI);

        }

        String appId = aUri.substring(MMS_PREFIX.length());

        for (int i = 0; i < appId.length(); i++)

        {

            char ch = appId.charAt(i);

            if (!(Character.isDigit(ch) || Character.isLowerCase(ch)||

                    Character.isUpperCase(ch) || (ch == '.') || (ch == '_')))

            {

                throw new IllegalArgumentException(INVALID_URI);

            }

        }

        // Filter Validation Part

        if (!isValidPhoneNumber(aFilter))

        {

            throw new IllegalArgumentException("Invalid Filter");

        }

        ApplicationUtils appUtils = ApplicationUtils.getInstance();

        MMSPermissionImpl permission = new MMSPermissionImpl("mms://*","open");

        appUtils.checkPermission(permission);

    }

    private boolean isValidPhoneNumber(String aFilter)

    {

        for (int i = 0; i < aFilter.length(); i++)

        {

            char ch = aFilter.charAt(i);

            if (i == 0 && (ch == '+'))

            {

                continue;

            }

            if (!(Character.isDigit(ch) || (ch == '*') || (ch == '?')))

            {

                return false;

            }

        }

        return true;

    }

}