vncsession.java

AjaxVNC 一个简单的远程控制服务器

/*
 * VNCSession.java
 *
 * Created on May 9, 2007, 6:50 AM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package hk.haha.onet.ajaxvnc;

import java.util.Date;

/**
 *
 * @author heic
 */
public class VNCSession {
    
    private boolean DEBUG = true;
    
    public final int MAX_TILE = 10;
    public final int SESSION_INIT = 0;
    public final int SESSION_AUTH = 1;
    public final int SESSION_DEAD = -1;
    public final int SESSION_TIMEOUT = 300; 
    
    
    private String sid;         // Session ID
    private String ip_address;
    private long lastmilli;
    private int status;
    private boolean tile_dirty[][];

    /** Creates a new instance of VNCSession */
    public VNCSession() {
        sid = "";
        ip_address = "";
        lastmilli = System.currentTimeMillis();
        status = SESSION_INIT;
        tile_dirty = new boolean[MAX_TILE][MAX_TILE];
        for (int i=0; i<MAX_TILE; i++){
            for (int j=0; j<MAX_TILE; j++) {
                tile_dirty[i][j] = true;
            }
        }
    }
    
    public void setIP(String ip)
    {
        ip_address = ip;
    }
    
    public String getIP()
    {
        return ip_address;
    }
    
    public void setTileDirty(int x, int y)
    {
        tile_dirty[x][y] = true;
    }
    
    public void clearTileDirty(int x, int y)
    {
        tile_dirty[x][y] = false;
    }
    
    public boolean isTileDirty(int x, int y)
    {
        return tile_dirty[x][y];
    }
    
    public void setSID(String sid_)
    {
        sid = sid_;
    }
    
    public String getSID()
    {
        return sid;
    }
    
    public void updateLaststamp()
    {
        lastmilli = System.currentTimeMillis();
    }
    
    public void setAuthStatus()
    {
        status = SESSION_AUTH;
    }
    
    public boolean isValidSession()
    {
        if (status == SESSION_AUTH) {
            if (System.currentTimeMillis()-lastmilli > SESSION_TIMEOUT) return false;
            else return true;
        }
        else return false;
    }
}