/*

* 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.datagram;

import java.lang.String;

import java.util.Vector;

import java.lang.NumberFormatException;

import java.lang.Integer;

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

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

import com.nokia.mj.impl.gcf.utils.UrlParser;

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

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

/**

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

 * arguments.

 */

public class PushValidatorImpl extends PushValidator

{

    private static final String DATAGRAM_PREFIX = "datagram://:";

    public PushValidatorImpl()

    {

    }

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

                         String aMidletName, boolean aIsStaticRegistration)

    {

        // Validating URI. Note: this validates only server datagram. It does not

        // contain host part.

        // Note: String.startsWith() does not accept "datagram://:" URI.

        boolean flag = aUri.startsWith(DATAGRAM_PREFIX);

        Logger.LOG(Logger.ESOCKET, Logger.EInfo,"+datagram - push validator");

        if (false == flag)

        {

            throw new IllegalArgumentException("Invalid URL: "+aUri);

        }

        String portNumStr = null;

        int startIndex = DATAGRAM_PREFIX.length();

        int endIndex = aUri.length();

        if (endIndex > startIndex) // dont validate port for "datagram://:" uri

        {

            portNumStr = aUri.substring(startIndex,endIndex);

            //Logger.LOG(Logger.ESOCKET, Logger.EInfo,"datagram - push validator portNumStr = "+portNumStr+"DATAGRAM_PREFIX.length() = "+DATAGRAM_PREFIX.length()+"aUri.length() = "+aUri.length());

            try

            {

                Integer.parseInt(portNumStr);

            }

            catch (java.lang.NumberFormatException ex)

            {

                throw new IllegalArgumentException(

                    "Invalid URL: " + aUri);

            }

        }

        // validate the filter

        if (aFilter == null)

            throw new IllegalArgumentException("Invalid filter: "+aFilter);

        if (aFilter == "")

            throw new IllegalArgumentException("Invalid filter: "+aFilter);

        if (aFilter.length() == 1)

        {

            char ch = aFilter.charAt(0);

            if ((ch == '*') || (ch == '?'))

            {

                // OK

            }

            else

            {

                throw new IllegalArgumentException("Invalid filter: "+aFilter);

            }

        }

        else

        {

            // validate the IPV6 or IPV4 format

            char ch;

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

            {

                ch = aFilter.charAt(i);

                int val = ch;

                //Logger.LOG(Logger.ESOCKET,Logger.EInfo, "ch = "+ch+" val = "+val);

                if ((ch == '?') ||

                        (ch == '*') ||

                        (ch == '.') ||

                        (ch == ':') ||

                        (ch == '[') ||

                        (ch == ']') ||

                        ((val >= 48) && (val <= 57)) || // between '0' and '9'

                        ((val >= 97) && (val <= 102)) || //between 'a' and 'f'

                        ((val >= 65) && (val <= 70)))  // between 'A' and 'F'

                {

                    // Ok

                }

                else

                {

                    Logger.LOG(Logger.ESOCKET,Logger.EInfo, "Invalid filter argument");

                    throw new IllegalArgumentException("Invalid filter: "+aFilter);

                }

            }// end of for

        } // end of else

        String url1 = "datagram://" + aFilter;

        Logger.LOG(Logger.ESOCKET,Logger.EInfo,"Socket PushValidator - after appending url = "+url1);

        UrlParser url2 = new UrlParser(url1);

        /* security check */

        Logger.LOG(Logger.ESOCKET, Logger.EInfo,"datagram - push validator : before security check");

        ApplicationUtils appUtils = ApplicationUtils.getInstance();

        appUtils.checkPermission(per);

        /* security check */

        Logger.LOG(Logger.ESOCKET, Logger.EInfo,"datagram - push validator : after security check");

    }// end validate()

}// end class PushValidatorImpl