changepasswordrequest.java

一个类似QQ的在线通讯聊天软件原码,适合初学者参考学习。

package openicq.net;

import JOscarLib.*;
import JOscarLib.Core.OscarConnection;
import JOscarLib.Request.Event.RequestAnswerEvent;
import JOscarLib.Request.Event.RequestListener;

/**
 * The <code>ChangePasswordRequest</code> class sends a change password
 * request to the ICQ server.
 * @author Hansgeorg Schwibbe
 * @copyright 2004
 */
public abstract class ChangePasswordRequest implements RequestListener
{
  /**
   * Initializes a new instance of the class <code>ChangePasswordRequest</code>.
   * @param connection the connection to the ICQ server
   * @param ownID your own user ID
   * @param newPw the new password
   */
  public ChangePasswordRequest(OscarConnection connection, int ownID,
                               char[] newPw)
  {
    RawData reqNewPwLength = new RawData(newPw.length + 1, RawData.WORD_LENGHT);
    reqNewPwLength.invertIndianness();
    RawData reqSubType = new RawData(0x2E04, RawData.WORD_LENGHT);
    RawData reqSeqNum = new RawData(0x0200, RawData.WORD_LENGHT);
    RawData reqDataType = new RawData(0xD007, RawData.WORD_LENGHT);
    RawData reqOwnerID = new RawData(ownID, RawData.DWORD_LENGHT);
    reqOwnerID.invertIndianness();
    int chunkSize = reqOwnerID.getForcedLenght()
                    + reqDataType.getForcedLenght()
                    + reqSeqNum.getForcedLenght()
                    + reqSubType.getForcedLenght()
                    + reqNewPwLength.getForcedLenght() + newPw.length + 1;
    RawData reqChunkSize = new RawData(chunkSize, RawData.WORD_LENGHT);
    reqChunkSize.invertIndianness();
    // TLV
    Tlv requestTlv = new Tlv(reqChunkSize, 0x01);
    requestTlv.appendRawDataToTlv(reqOwnerID);
    requestTlv.appendRawDataToTlv(reqDataType);
    requestTlv.appendRawDataToTlv(reqSeqNum);
    requestTlv.appendRawDataToTlv(reqSubType);
    requestTlv.appendRawDataToTlv(reqNewPwLength);
    for (int i = 0; i < newPw.length; i++)
    {
      requestTlv.appendRawDataToTlv(new RawData(newPw[i], RawData.BYTE_LENGHT));
    }
    requestTlv.appendRawDataToTlv(new RawData(0x00, RawData.BYTE_LENGHT));
    // Snac
    Snac requestSnac = new Snac(0x15, 0x02, 0x00, 0x00, ownID);
    requestSnac.addTlvToSnac(requestTlv);
    // Flap
    Flap requestFlap = new Flap(0x02, requestSnac);
    connection.sendMonitoredFlap(requestFlap, this);
  }

  /**
   * Prototype for processing the success byte.
   * @param success the success byte
   */
  public abstract void onResponse(int success);

  /**
   * Sets the success byte and runs the <code>onResponse()</code> method.
   * @param e answer event
   */
  public void onRequestAnswer(RequestAnswerEvent e)
  {
    Flap flap = e.getRequestAnswerPacket();
    int success;
    if (flap.getChannelId() != 0x02)
    {
      success = -1;
    }
    else if (flap.getSnac().getFamilyId() != 0x15
             || flap.getSnac().getSubTypeId() != 0x03)
    {
      success = -1;
    }
    else
    {
      success = flap.getSnac().getDataFieldByteArray()[16];
    }
    this.onResponse(success);
  }
}