javaextensions/wma/mms/javasrc/com/nokia/mj/impl/gcf/protocol/mms/PushValidatorImpl.java
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 27 Apr 2010 16:30:29 +0300
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/*
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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package com.nokia.mj.impl.gcf.protocol.mms;
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import java.lang.String;
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import com.nokia.mj.impl.utils.Uid;
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import com.nokia.mj.impl.gcf.PushValidator;
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import com.nokia.mj.impl.mms.MMSPermissionImpl;
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import com.nokia.mj.impl.rt.support.ApplicationUtils;
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/**
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 * This is implementation for validation of URI and 'filter' push arguments for
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 * MMS.
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 */
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public class PushValidatorImpl extends PushValidator
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{
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    private static final String MMS_PREFIX = "mms://:";
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    private final String INVALID_URI = "Invalid MMS URI";
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    public PushValidatorImpl()
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    {
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    }
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    /**
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     * Validates both Uri and Filter
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     * @param aUri Uri to be validated
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     * @param aFilter filter to be validated
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     */
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    public void validate(String aUri, String aFilter, Uid aSuiteUid,
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                         String aMidletName, boolean aIsStaticRegistration)
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    {
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        if (!(aUri.startsWith(MMS_PREFIX)))
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        {
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            throw new IllegalArgumentException(INVALID_URI);
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        }
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        String appId = aUri.substring(MMS_PREFIX.length());
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        for (int i = 0; i < appId.length(); i++)
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        {
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            char ch = appId.charAt(i);
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            if (!(Character.isDigit(ch) || Character.isLowerCase(ch)||
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                    Character.isUpperCase(ch) || (ch == '.') || (ch == '_')))
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            {
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                throw new IllegalArgumentException(INVALID_URI);
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            }
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        }
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        // Filter Validation Part
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        if (!isValidPhoneNumber(aFilter))
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        {
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            throw new IllegalArgumentException("Invalid Filter");
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        }
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        ApplicationUtils appUtils = ApplicationUtils.getInstance();
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        MMSPermissionImpl permission = new MMSPermissionImpl("mms://*","open");
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        appUtils.checkPermission(permission);
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    }
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    private boolean isValidPhoneNumber(String aFilter)
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    {
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        for (int i = 0; i < aFilter.length(); i++)
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        {
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            char ch = aFilter.charAt(i);
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            if (i == 0 && (ch == '+'))
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            {
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                continue;
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            }
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            if (!(Character.isDigit(ch) || (ch == '*') || (ch == '?')))
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            {
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                return false;
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            }
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        }
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        return true;
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    }
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}