paip.提升安全性---登录密码出错次数检测

最新推荐文章于 2018-04-01 21:02:15 发布

原创最新推荐文章于 2018-04-01 21:02:15 发布 · 1.9k 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#string #parameters #date #exception #interface #table

本文介绍了一种提升系统安全性的方法，即通过检测登录密码的出错次数，当达到预设阈值（如20次）时，禁止用户当日登录并提示其通过找回密码功能重置密码。

paip.提升安全性---登录密码出错次数检测

前言

为了提升安全性,需要对登录时，密码出错次数进行检测，当达到一定次数时,如20次，禁止用户当日进行登录。。提示用户可通过取回密码功能，来重设密码

设计接口

public interface Iapts

//检测

void check(string Account);

//保存本次登录纪录..如果登录TRUE，则清零

void save(string Account, bool IsValid);

}

流程设计（伪码）

***check(username)

if (getTimes(username,today) >= getMaxTimes())

throw ("E1:今日登录连续错误次数超过" + getMaxTimes().ToString() + "次,请明日再试或者使用找回密码功能");

getTimes()

sql: select times from table where username=xxx and date=today

***************************88

//保存本次登录纪录..如果登录TRUE，则清零

public void save(string Account, bool IsLoginValid)

if (IsLoginValid)

clear(Account);

else

add(Account); // err times add 1

clear()

recorde=get(username,today)

rec.times=0;

add()

if (!exist(uname,doday))

new rec(username,times=1,date=today)

else

update time+1 where username and date=today

使用此接口

1. 登录时

Iapts apts = kaziApts.getIaptsImp();

//ati L97 add atipwdtimesSec

apts.check(Account);

////L97

loginxxx,set tokeyn()

//ati L97 add atipwdtimesSec

apts.save(Account, IsValid);

////L97

2.取回密码时

Iapts apts = atim.getbackpwdItfs.getapts();

//ati L96 apts add clear

if (apts != null)

apts.save(uname, true);

实现接口

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using Maticsoft;

using System.Data.SqlClient;

using System.Data;

/// <summary>

///iaptsimp 的摘要说明

/// </summary>

public class iaptsimp :Iapts

{

public iaptsimp()

{

//TODO: 在此处添加构造函数逻辑

}

void add(string uname)

{

inidb();

if (!exist(uname))

{

Maticsoft.aptsBO o = new aptsBO();

o.uname = uname;

o.times = 1;

o.date = DateTime.Now;

o.Add();

return;

}

int id = getid(uname);

string strSql = "update apts set times=times+1 where uname=@u and id="+id.ToString();

SqlParameter[] parameters = {

new SqlParameter("@u", uname)};

MOLE.SQL.ExecuteSql(strSql.ToString(), parameters);

}

int getid(string uname)

{

string date = getNowDate();

string date1 = "'" + date + " 00:00:01'";

string date2 = "'" + date + " 23:59:59'";

string anddate = " and [date]>=" + date1 + " and [date]<=" + date2;

string strSql = "select * from apts where uname=@u" + anddate;

SqlParameter[] parameters = {

new SqlParameter("@u", uname)};

DataTable d = MOLE.SQL.GetDataTable(strSql.ToString(), parameters);

string idstr = d.Rows[0]["id"].ToString();

return Int32.Parse(idstr);

}

private bool exist(string uname)

{

string date = getNowDate();

string date1 = "'" + date + " 00:00:01'";

string date2 = "'" + date + " 23:59:59'";

string anddate = " and [date]>=" + date1 + " and [date]<=" + date2;

string strSql = "select * from apts where uname=@u" + anddate;

SqlParameter[] parameters = {

new SqlParameter("@u", uname)};

DataTable d = MOLE.SQL.GetDataTable(strSql.ToString(), parameters);

if (d.Rows.Count == 0)

return false;

else

return true;

}

string getNowDate()

{

DateTime dt = DateTime.Now;

string s = string.Format("{0:yyyy-MM-dd}", dt);

return s;

}

int getTimes(string uname)

{

inidb();

string date = getNowDate();

string date1 = "'"+date + " 00:00:01'";

string date2 = "'" + date + " 23:59:59'";

string anddate = " and [date]>=" + date1 + " and [date]<=" + date2;

string strSql = "select * from apts where uname=@u " + anddate;

SqlParameter[] parameters = {

new SqlParameter("@u", uname)};

DataTable d = MOLE.SQL.GetDataTable(strSql.ToString(), parameters);

if (d.Rows.Count == 0)

return 0;

string s = d.Rows[0]["times"].ToString();

return Int32.Parse(s);

}

int getMaxTimes()

{

return 3;

}

void inidb()

{

MOLE.SQL.connectionString = new SqlHelper().ConnStr;

Maticsoft.DBUtility.DbHelperSQL.connectionString = MOLE.SQL.connectionString;

}

void clear(string uname)

{

inidb();

int id = getid(uname);

string strSql = "update apts set times=0 where uname=@u and id=" + id.ToString();

SqlParameter[] parameters = {

new SqlParameter("@u", uname)};

MOLE.SQL.ExecuteSql(strSql.ToString(), parameters);

}

public void save(string Account, bool IsLoginValid)

{

if (IsLoginValid)

{

clear(Account);

}

else

{

add(Account); // err times add 1

}

public void check(string Account)

{

if (getTimes(Account) >= getMaxTimes())

throw new Exception("E1:今日登录连续错误次数超过" + getMaxTimes().ToString() + "次,请明日再试或者使用找回密码功能");

}