You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
208 lines
7.8 KiB
Plaintext
208 lines
7.8 KiB
Plaintext
11 months ago
|
using BP.Web;
|
||
|
|
using System;
|
||
|
|
using System.Collections.Generic;
|
||
|
|
using System.Drawing;
|
||
|
|
using System.Linq;
|
||
|
|
using System.Security.Cryptography;
|
||
|
|
using System.Text;
|
||
|
|
using System.Threading.Tasks;
|
||
|
|
using System.Web;
|
||
|
|
using BP.Difference;
|
||
|
|
using BP.DA;
|
||
|
|
|
||
|
|
namespace BP.Tools
|
||
|
|
{
|
||
|
|
public class Verify
|
||
|
|
{
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// 随机码认证
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="code">生成认证长度</param>
|
||
|
|
public static string DrawImage(int code, string sessionName, string errorSign, string codeSign, string userNo)
|
||
|
|
{
|
||
|
|
string str = Rand.Number(5);
|
||
|
|
|
||
|
|
//Dictionary<string, string> cookieValues = new Dictionary<string, string>();
|
||
|
|
////base64编码会把+改为空格的问题修复
|
||
|
|
//cookieValues.Add(sessionName + codeSign, Convert.ToBase64String(MD5.Create().ComputeHash(Encoding.UTF8.GetBytes(str))).Replace("+", "%2B"));
|
||
|
|
//cookieValues.Add(sessionName + errorSign, sessionName + errorSign);
|
||
|
|
//HttpContextHelper.ResponseCookieAdd(cookieValues, null, "CCS");
|
||
|
|
|
||
|
|
//// HttpContext Core中没又 session 使用 HttpContextHelper.SessionSet 替代
|
||
|
|
//HttpContextHelper.SessionSet(sessionName, str);
|
||
|
|
|
||
|
|
|
||
|
|
string atPara = DBAccess.RunSQLReturnString("select AtPara from wf_emp where no='" + userNo + "'");
|
||
|
|
|
||
|
|
AtPara ap = new AtPara(atPara);
|
||
|
|
//ap.SetVal(sessionName + errorSign, sessionName + errorSign);
|
||
|
|
//ap.SetVal(sessionName + codeSign, Convert.ToBase64String(MD5.Create().ComputeHash(Encoding.UTF8.GetBytes(str))).Replace("+", "%2B"));
|
||
|
|
ap.SetVal(codeSign, Convert.ToBase64String(MD5.Create().ComputeHash(Encoding.UTF8.GetBytes(str))).Replace("+", "%2B"));
|
||
|
|
|
||
|
|
DBAccess.RunSQL("update wf_emp set atPara='" + ap.GenerAtParaStrs() + "' where no='" + userNo + "'");
|
||
|
|
|
||
|
|
return CreateImages(str);
|
||
|
|
}
|
||
|
|
/// <summary>
|
||
|
|
/// /// 生成验证图片
|
||
|
|
/// /// </summary>
|
||
|
|
/// /// <param name="checkCode">验证字符</param>
|
||
|
|
private static string CreateImages(string checkCode)
|
||
|
|
{
|
||
|
|
int iwidth = (int)(checkCode.Length * 15);
|
||
|
|
Bitmap image = new Bitmap(iwidth, 25);
|
||
|
|
Graphics g = Graphics.FromImage(image);
|
||
|
|
g.Clear(Color.LightCyan);
|
||
|
|
//定义颜色
|
||
|
|
Color[] c = { Color.Black, Color.Red, Color.DarkBlue, Color.Green, Color.Orange, Color.Brown, Color.DarkCyan, Color.Purple };
|
||
|
|
//定义字体
|
||
|
|
string[] font = { "Verdana", "Microsoft Sans Serif", "Comic Sans MS", "Arial", "宋体", "Comic Sans MS" };
|
||
|
|
Random rand = new Random();
|
||
|
|
//随机输出噪点
|
||
|
|
for (int i = 0; i < 150; i++)
|
||
|
|
{
|
||
|
|
int x = rand.Next(image.Width);
|
||
|
|
int y = rand.Next(image.Height);
|
||
|
|
g.DrawPie(new Pen(Color.LightGray, 0), x, y, 6, 6, 1, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
//输出不同字体和颜色的验证码字符
|
||
|
|
for (int i = 0; i < checkCode.Length; i++)
|
||
|
|
{
|
||
|
|
int cindex = rand.Next(7);
|
||
|
|
int findex = rand.Next(6);
|
||
|
|
Font fs_font = new System.Drawing.Font(font[findex], 14, System.Drawing.FontStyle.Bold);
|
||
|
|
Brush b = new System.Drawing.SolidBrush(c[cindex]);
|
||
|
|
int ii = 4;
|
||
|
|
if ((i + 1) % 2 == 0)
|
||
|
|
{
|
||
|
|
ii = 2;
|
||
|
|
}
|
||
|
|
g.DrawString(checkCode.Substring(i, 1), fs_font, b, 3 + (i * 12), ii);
|
||
|
|
}
|
||
|
|
|
||
|
|
//画一个边框
|
||
|
|
g.DrawRectangle(new Pen(Color.Red, 0), 100, 0, image.Width - 1, image.Height - 1);
|
||
|
|
//输出到浏览器
|
||
|
|
System.IO.MemoryStream ms = new System.IO.MemoryStream();
|
||
|
|
image.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
|
||
|
|
byte[] arr = new byte[ms.Length];
|
||
|
|
ms.Position = 0;
|
||
|
|
ms.Read(arr, 0, (int)ms.Length);
|
||
|
|
ms.Close();
|
||
|
|
return "data:image/jpg;base64," + Convert.ToBase64String(arr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public class Rand
|
||
|
|
{
|
||
|
|
/// <summary>
|
||
|
|
/// 生成随机数字
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="length">生成长度</param>
|
||
|
|
/// <returns></returns>
|
||
|
|
public static string Number(int Length)
|
||
|
|
{
|
||
|
|
return Str(Length, false);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// 生成随机数字
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="Length">生成长度</param>
|
||
|
|
/// <param name="Sleep">是否要在生成前将当前线程阻止以避免重复</param>
|
||
|
|
/// <returns></returns>
|
||
|
|
public static string Number(int Length, bool Sleep)
|
||
|
|
{
|
||
|
|
if (Sleep)
|
||
|
|
System.Threading.Thread.Sleep(2);
|
||
|
|
string result = "";
|
||
|
|
System.Random random = new Random();
|
||
|
|
for (int i = 0; i < Length; i++)
|
||
|
|
{
|
||
|
|
result += random.Next(10).ToString();
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// 生成随机字母与数字
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="IntStr">生成长度</param>
|
||
|
|
/// <returns></returns>
|
||
|
|
public static string Str(int Length)
|
||
|
|
{
|
||
|
|
return Str(Length, false);
|
||
|
|
}
|
||
|
|
/// <summary>
|
||
|
|
/// 生成随机字母与数字
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="Length">生成长度</param>
|
||
|
|
/// <param name="Sleep">是否要在生成前将当前线程阻止以避免重复</param>
|
||
|
|
/// <returns></returns>
|
||
|
|
public static string Str(int Length, bool Sleep)
|
||
|
|
{
|
||
|
|
if (Sleep)
|
||
|
|
System.Threading.Thread.Sleep(2);
|
||
|
|
char[] Pattern = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z' };
|
||
|
|
string result = "";
|
||
|
|
int n = Pattern.Length;
|
||
|
|
System.Random random = new Random(~unchecked((int)DateTime.Now.Ticks));
|
||
|
|
for (int i = 0; i < Length; i++)
|
||
|
|
{
|
||
|
|
int rnd = random.Next(0, n);
|
||
|
|
result += Pattern[rnd];
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// 生成随机纯字母随机数
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="IntStr">生成长度</param>
|
||
|
|
/// <returns></returns>
|
||
|
|
public static string Str_char(int Length)
|
||
|
|
{
|
||
|
|
return Str_char(Length, false);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// 生成随机纯字母随机数
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="Length">生成长度</param>
|
||
|
|
/// <param name="Sleep">是否要在生成前将当前线程阻止以避免重复</param>
|
||
|
|
/// <returns></returns>
|
||
|
|
public static string Str_char(int Length, bool Sleep)
|
||
|
|
{
|
||
|
|
if (Sleep)
|
||
|
|
System.Threading.Thread.Sleep(2);
|
||
|
|
char[] Pattern = new char[] { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z' };
|
||
|
|
string result = "";
|
||
|
|
int n = Pattern.Length;
|
||
|
|
System.Random random = new Random(~unchecked((int)DateTime.Now.Ticks));
|
||
|
|
for (int i = 0; i < Length; i++)
|
||
|
|
{
|
||
|
|
int rnd = random.Next(0, n);
|
||
|
|
result += Pattern[rnd];
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
/// <summary>
|
||
|
|
/// MD5 16位加密
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="ConvertString"></param>
|
||
|
|
/// <returns></returns>
|
||
|
|
|
||
|
|
public static string GetMd5Str(string ConvertString)
|
||
|
|
{
|
||
|
|
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
|
||
|
|
string t2 = BitConverter.ToString(md5.ComputeHash(UTF8Encoding.Default.GetBytes(ConvertString)), 4, 8);
|
||
|
|
t2 = t2.Replace("-", "");
|
||
|
|
return t2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|