httpscoretransmitter.java

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/*
 * @(#)HTTPScoreTransmitter.java, 1.7
 *
 * Copyright (c) 2001-2004 Sony Ericsson Mobile Communication AB (SEMC).
 *
 * German Branch
 * Heisenbergbogen 1, Aschheim 85609, Munich, Germany.
 * All Rights Reserved.
 *
 * This software is the confidential and proprietary information of
 * SEMC. ("Confidential Information"). You shall not disclose such
 * Confidential Information and shall use it only in accordance with
 * the terms of the license agreement you entered into with SEMC.
 *
 * @author  Sudip, Rohit, Keshav.
 * @version 1.7, 10/10/2003
*/

package com.sonyericsson.erix;

import javax.microedition.io.HttpConnection;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import javax.microedition.io.Connector;
import javax.microedition.lcdui.*;

/**
 * This class implements the scoreTransmitter interface.
 */

public class HTTPScoreTransmitter implements Runnable, CommandListener {

    /**
     * Status code which indicates that
     * the highscores upload operation was successful.
     */
    public static final int UPLOAD_SUCCESSFUL = 0;

    /**
     * Status code which indicates that
     * the highscores upload operation failed
     * due to a reason other than authentication error.
     */
    public static final int UPLOAD_FAILED_OTHER_ERROR = 1;

    /**
     * Status code which indicates that
     * the highscores upload operation failed
     * due to authentication error.
     */
    public static final int UPLOAD_FAILED_AUTHENTICATION_ERROR = 2;

    /**
     * Status code which indicates that
     * the highscores upload was cancelled by the user.
     */
    public static final int UPLOAD_CANCELLED = 3;

    /**
     * Indicates whether the transmission of the Highscores
     * was sucessful or not.
     * Initialized to failure due to an error other than authentication error.
     */
    public int m_nHighScoreStatus = UPLOAD_FAILED_OTHER_ERROR;

    /**
     * Remembers the result of the previous highscores upload operation.
     * This is used to determine whenther or not the Form that displays
     * the status to the user is to be updated or not.
     */
    public int m_nPreviousHighScoreStatus = UPLOAD_FAILED_OTHER_ERROR;

    /**
     * Version number of the authentication algorithm used.
     */
    public final String m_strAuthVersion = "11";

    /**
     * The HttpConnection object used to upload the highscores to the server.
     */
    public HttpConnection m_objConnection;

    /**
     * Indicates whether server response is received or not.
     */
    private boolean m_bServerResonseReceived;

    private final int m_nResponseWaitCounter = 10;

    /**
     * The string which represents the entire data to be sent.
     * This string is assembled by concatenating individual datum.
     */
    public String m_strFullString;

    /**
     * The delimiter to be used after each datum
     * during highscores upload to a server.
     */
    private String m_strDelimiter = "\f";   // The formfeed charcter.

    /**
     * The data received regarding the highest rank (in any difficulty level)
     * at which a score uploaded by user was entered in the highscores server.
     */
    public String m_strReceivedDataHighestRank;

    /**
     * The data received regarding the difficulty level associated
     * with the highest rank at which a score uploaded by user
     * was entered in the highscores server.
     */
    public String m_strReceivedDataDifficultySetting;

    /**
     * The authentication prompt text for attempted highscores upload.
     */
    public String m_strReceivedDataAuthenticationPrompt;

    /**
     * The authentication help text.
     */
    public String m_strReceivedDataAuthenticationHelp;

    // Temp vars for getting a data dump
    String strDataSent;
    StringBuffer strbufPrintableData;

    /**
     * The URL of the high score server.
     */
    private final String m_strHighScoreServerUrl;
    //private final String m_strHighScoreServerUrl = "http://10.143.10.175/servlets/HS";
    //private final String m_strHighScoreServerUrl = "http://localhost/hi.jsp";
    //private final String m_strHighScoreServerUrl = "http://aurws702:8080/cip11/highscore.jsp";
    //private final String m_strHighScoreServerUrl = "http://cip-ext.aus.teleca.se/cip/highscore/index.jsp";
    //private final String m_strHighScoreServerUrl = "http://devtest5.akamai.com/mc_ejtest/highscore/index.jsp";
    //private final String m_strHighScoreServerUrl = "http://213.61.181.187/servlets/HS";
    //private final String m_strHighScoreServerUrl = "http://10.143.10.60/servlets/HS";
    //private final String m_strHighScoreServerUrl = "http://demob.sonyericsson.com/fun/highscore/index.jsp";
    //private final String m_strHighScoreServerUrl = "http://www.sonyericsson.com/fun/highscore/index.jsp";
    //private final String m_strHighScoreServerUrl = "http://demoa.sonyericsson.com/fun/highscore/index.jsp";


    /**
     * Keeps the reference to the MIDlet object.
     */
    private ErixMIDlet m_objErixMIDlet;

    /**
     * Constructor
     */
    HTTPScoreTransmitter(ErixMIDlet objErixMIDLet) {
        m_objErixMIDlet = objErixMIDLet;
        m_strHighScoreServerUrl = m_objErixMIDlet.getAppProperty("URL");
    }


    /**
     * This method attempts to send the high scores to the High Scores server.
     * This method checks for 10 seconds for server response.If the server response
     * comes within ten seconds of sending high scores, then no further checks are made for
     * server response.
     */
    public void run() {
        // Remember the result of the previous upload operation.
        m_nPreviousHighScoreStatus = m_nHighScoreStatus;

        // Reset the result of the previous upload operation
        m_nHighScoreStatus = UPLOAD_FAILED_OTHER_ERROR;

        // Attempt to send acores to the high score server
        m_nHighScoreStatus = sendScores();

        // Inform the upload progres form that the operation is completed.
        m_objErixMIDlet.m_objGameCanvas.m_objHighscoresUploadProgressForm
                .uploadOperationCompleted();
    } // end of method run()


    /**
     * The command handler for the "Cancel" command present on the
     * Highscores Upload Progress Form. All other commands in the application
     * are handled by the ErixMIDlet object.
     */
    public void commandAction(Command c, Displayable d) {
        // Handle the case when the user has chosen the "Cancel" command on
        // the Highscores Upload Progress Form.

        // The HTTPScoreTransmitter object is the command listener for only
        // the Highscores Upload Progress Form, and the only command contained
        // on that form is the Cancel command. Therefore, in this command
        // handler method, we do not perform any checking for the current
        // displayable or the command.

        // Set the status indicator to indicate that the highscores upload
        // was cancelled.
        m_nHighScoreStatus = UPLOAD_CANCELLED;

        try {
            // Cancel the highscores upload:
            // Close the HTTPConnection
            m_objConnection.close();
        } catch (Exception e) {
        }
    }

    /**
     * This method attempts to get the high score server response.
     * If the data is available, it is decoded
     * and the relevant information is extracted from it.
     * @param HTTP connection object.
     * @param InputStream object.
     */
    public void getServerresponse(HttpConnection objConnection, InputStream objInputStream, int nResponseCode) {
        try {
                // Get the length and process the data
                int iDataLength = (int)objConnection.getLength();
                byte[] arrDataRead = null;
                // Has any content been returned in the server's response?
                if (iDataLength > 0) {
                    // System.out.println("iDataLength = " + iDataLength);
                    // To indicate the while loop in the run method to end
                    m_bServerResonseReceived = true;
                    arrDataRead = new byte[iDataLength];
                    objInputStream.read(arrDataRead);

                    m_strFullString = new String(arrDataRead, "UTF-8");
//System.out.println("m_strFullString: " + m_strFullString);
                    // Extract the various individual data:
                    int nDataStartIndex;
                    int nDataEndIndex;

                    // The server returns the "pos", "d"  and "srl"
                    // parameters only if the upload operation was successful.
                    // Therefore, retrieve these parameters only if the
                    // response code returned from the server is
                    // UPLOAD_SUCCESSFUL
                    if (nResponseCode == 200) {
                        // Retrieving the following three parameters will
                        // return meaningful values:

                        // Highest rank achived:
                        nDataStartIndex = m_strFullString.indexOf("pos=");
                        nDataEndIndex = m_strFullString.indexOf(m_strDelimiter, nDataStartIndex);
                        m_strReceivedDataHighestRank =
                                m_strFullString.substring(nDataStartIndex+4,
                                                            nDataEndIndex);

                        // Difficulty level associated with
                        // the highest rank achieved:
                        nDataStartIndex = m_strFullString.indexOf("d=");
                        nDataEndIndex = m_strFullString.indexOf(m_strDelimiter, nDataStartIndex);
                        m_strReceivedDataDifficultySetting =
                                m_strFullString.substring(nDataStartIndex+2,
                                                            nDataEndIndex);

                        // Serial number
                        nDataStartIndex = m_strFullString.indexOf("srl=");
                        nDataEndIndex = m_strFullString.indexOf(m_strDelimiter, nDataStartIndex);
                        m_objErixMIDlet.m_strSerialNumber =
                                m_strFullString.substring(nDataStartIndex+4,
                                                            nDataEndIndex);

                        //save serial number - keshav 17 Jun 2003
                        m_objErixMIDlet.saveSerialNumber();

                        //end of if block which retrieves the value of the
                        // "pos" , "d" and "srl" parameters.
                    } else {
                        // Set the values of the placeholders for the above three parameters
                        // to indicate that these parameters could not be retrieved.
                        m_strReceivedDataHighestRank = null;
                        m_strReceivedDataDifficultySetting = null;
                        m_objErixMIDlet.m_strSerialNumber = null;
                    }

                    // The following parameters are returned everytime by
                    // the server, no matter if the upload operation
                    // succeeded or failed

                    // Authentication prompt text
                    nDataStartIndex = m_strFullString.indexOf("infLogin=");
                    nDataEndIndex = m_strFullString.indexOf(m_strDelimiter, nDataStartIndex);
                    m_strReceivedDataAuthenticationPrompt =
                            m_strFullString.substring(nDataStartIndex+9,