/// <summary>
/// 获取本逻辑类单例
/// </summary>
/// <returns></returns>
public static PositionBll GetInstence()
{
if (_PositionBll == null) {
_PositionBll = new PositionBll();
}
return _PositionBll;
}
/// <summary>
/// 判断用户是否超时退出（退出情况：1.系统更新，2.用户自动退出）
/// </summary>
public void IsTimeOut()
{
if (HttpContext.Current.Session == null || HttpRuntime.Cache["OnlineUsers"] == null || HttpContext.Current.Session[OnlineUsersTable.UserHashKey] == null)
{
try
{
//不存在则表示Session失效了，重新从Cookies中加载
var userHashKey = CookieHelper.GetCookieValue(OnlineUsersTable.UserHashKey);
var md5 = CookieHelper.GetCookieValue(OnlineUsersTable.Md5);
//判断Cookies是否存在，存在则查询在线列表，重新获取用户信息
if (userHashKey.Length > 0 && md5.Length == 32)
{
//读取当前用户在线实体
var model = GetModelForCache(x => x.UserHashKey == userHashKey);
//当前用户存在在线列表中
if (model != null)
{
//计算用户md5值
var key = GenerateMd5(model);
//判断用户的md5值是否正确
if (md5 == key)
{
//将UserHashKey存储到缓存中
HttpContext.Current.Session[OnlineUsersTable.UserHashKey] = userHashKey;
//获取用户权限并存储到用户Session里
PositionBll.GetInstence().SetUserPower(model.Position_Id);
//更新用户当前SessionId到在线表中
//UpdateUserOnlineInfo(model.Id + "", OnlineUsersTable.SessionId, HttpContext.Current.Session.SessionID);
//当在线列表缓存不存在时，重新加载数据库记录到缓存中
if (HttpRuntime.Cache["OnlineUsers"] == null)
{
Load();
}
//加载用户相关信息完毕，退出超时检查
return;
}
}
}
}
catch (Exception e)
{
//出现异常，保存出错日志信息
CommonBll.WriteLog("", e);
}
//用户不存在，直接退出
FineUI.Alert.Show("当前用户登录已经过时或系统已更新,请重新登录！", "检测通知", MessageBoxIcon.Information, "top.location='Login.aspx'");
//DotNet.Utilities.JsHelper.AlertAndParentUrl("当前用户登录已经过时或系统已更新,请重新登录！", "Login.aspx");
HttpContext.Current.Response.End();
}
}
/// <summary>
/// 获取用户页面控件（按键）操作权限
/// </summary>
/// <returns></returns>
public string GetControlPower()
{
//读取Session中存储的ControlPower值
var controlPower = SessionHelper.GetSession(PositionTable.ControlPower);
//如果为null
if (controlPower == null)
{
//获取用户权限并存储到用户Session里
PositionBll.GetInstence().SetUserPower(GetUserOnlineInfo(GetUserHashKey(), OnlineUsersTable.Position_Id) + "");
}
controlPower = SessionHelper.GetSession(PositionTable.ControlPower);
return(controlPower + "");
}
/// <summary>
/// 获取用户页面控件（按键）操作权限
/// </summary>
/// <returns></returns>
public string GetControlPower()
{
//读取Session中存储的ControlPower值
var controlPower = HttpContext.Current.Session[PositionTable.ControlPower];
//如果为null
if (controlPower == null)
{
//获取用户权限并存储到用户Session里
PositionBll.GetInstence().SetUserPower(GetUserOnlineInfo(OnlineUsersTable.Position_Id) + "");
}
controlPower = HttpContext.Current.Session[PositionTable.ControlPower];
return(controlPower + "");
}
/// <summary>
/// 判断用户是否超时退出（退出情况：1.系统更新，2.用户自动退出）
/// </summary>
public void IsTimeOut()
{
if (HttpContext.Current.Session == null || HttpContext.Current.Session[OnlineUsersTable.UserHashKey] == null)
{
try
{
//不存在则表示Session失效了，重新从Cookies中加载
var userHashKey = CookieHelper.GetCookieValue(OnlineUsersTable.UserHashKey);
var md5 = CookieHelper.GetCookieValue(OnlineUsersTable.Md5);
//判断Cookies是否存在，存在则查询在线列表，重新获取用户信息
if (userHashKey.Length > 0 && md5.Length == 32)
{
//读取当前用户在线实体
var model = GetOnlineUsersModel(userHashKey);
//当前用户存在在线列表中
if (model != null)
{
//计算用户md5值
var key = GenerateMd5(model);
//判断用户的md5值是否正确
if (md5 == key)
{
//将UserHashKey存储到缓存中
HttpContext.Current.Session[OnlineUsersTable.UserHashKey] = userHashKey;
//获取用户权限并存储到用户Session里
PositionBll.GetInstence().SetUserPower(model.Position_Id);
//更新用户当前SessionId到在线表中
//UpdateUserOnlineInfo(model.Id + "", OnlineUsersTable.SessionId, HttpContext.Current.Session.SessionID);
return;
}
//添加用户下线记录
LoginLogBll.GetInstence().Save(model.Id, "用户【{0}】的账号已经在另一处登录，本次登陆下线！在线时间【{1}】");
//清除在线表里与当前用户同名的记录
Delete(null, x => x.Id == model.Id);
//清空Session
SessionHelper.RemoveSession(OnlineUsersTable.UserHashKey);
SessionHelper.RemoveSession(OnlineUsersTable.Md5);
SessionHelper.RemoveSession(PositionTable.PagePower);
SessionHelper.RemoveSession(PositionTable.ControlPower);
//删除Cookies
CookieHelper.ClearCookie(OnlineUsersTable.UserHashKey);
CookieHelper.ClearCookie(OnlineUsersTable.Md5);
}
else
{
//删除数据库记录与IIS缓存
Delete(null, x => x.UserHashKey == userHashKey);
//清空Session
SessionHelper.RemoveSession(OnlineUsersTable.UserHashKey);
SessionHelper.RemoveSession(OnlineUsersTable.Md5);
SessionHelper.RemoveSession(PositionTable.PagePower);
SessionHelper.RemoveSession(PositionTable.ControlPower);
//删除Cookies
CookieHelper.ClearCookie(OnlineUsersTable.UserHashKey);
CookieHelper.ClearCookie(OnlineUsersTable.Md5);
}
}
}
catch (Exception e)
{
//出现异常，保存出错日志信息
CommonBll.WriteLog("", e);
}
//用户不存在，直接退出
//FineUI.Alert.Show("当前用户登录已经过时或系统已更新,请重新登录！", "检测通知", MessageBoxIcon.Information, "top.location='Login.aspx'");
//DotNet.Utilities.JsHelper.AlertAndParentUrl("当前用户登录已经过时或系统已更新,请重新登录！", "Login.aspx");
HttpContext.Current.Response.Redirect("/WebManage/Login.aspx");
HttpContext.Current.Response.End();
}
}
