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ZhiYeJianKang_PeiXun/Song.Site/Manage/Utility/CodeImg.aspx.cs

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C#
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v1
2025-02-20 15:41:53 +08:00
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Drawing;
using System.Drawing.Imaging;
namespace Song.Site.Manage.Utility
{
public partial class CodeImg : System.Web.UI.Page
{
//<2F><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>ij<EFBFBD><C4B3><EFBFBD>
int? _len = WeiSha.Common.Request.QueryString["len"].Int16 ?? 4;
//<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>ͣ<EFBFBD>0Ϊ<30><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Сд<D0A1><D0B4>ĸ<EFBFBD><C4B8>1Ϊ<31><CEAA><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>2Ϊ<32><CEAA>С<EFBFBD><D0A1>ĸ<EFBFBD><C4B8>3Ϊ<33><CEAA><EFBFBD><EFBFBD>д<EFBFBD><D0B4>ĸ<EFBFBD><C4B8>4Ϊ<34><CEAA>Сд<D0A1><D0B4>ĸ<EFBFBD><C4B8>5<EFBFBD><35><EFBFBD>ּ<EFBFBD>Сд<D0A1><D0B4>6<EFBFBD><36><EFBFBD>ּӴ<D6BC>д
int? _type = WeiSha.Common.Request.QueryString["type"].Int16 ?? 1;
//cookies<65><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
string _name = WeiSha.Common.Request.QueryString["name"].String ?? "default";
/// <summary>
///
/// </summary>
/// <param name="Src"></param>
/// <param name="E"></param>
protected void Page_Load(Object Src, EventArgs E)
{
//<2F>趨<EFBFBD><E8B6A8><EFBFBD>ɼ<EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
string tmp = RndNum((int)_len, (int)_type);
//<2F>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
HttpCookie cookie = new HttpCookie(_name);
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ת<EFBFBD>ãͣģ<CDA3><C4A3><EFBFBD><EFBFBD><EFBFBD>
cookie.Value = Md5(tmp);
Response.Cookies.Add(cookie);
//<2F><><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼƬ
ValidateCode(this, tmp);
}
/// <summary>
/// <20><><EFBFBD><EFBFBD>Md5<64><35><EFBFBD><EFBFBD><EFBFBD>룬Md5Ϊ<35><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
/// </summary>
/// <param name="str"><3E><>Ҫ<EFBFBD><D2AA><EFBFBD>ܵ<EFBFBD><DCB5>ַ<EFBFBD><D6B7><EFBFBD></param>
/// <param name="code">Md5<64><35><EFBFBD>ܷ<EFBFBD>16λ<36><CEBB>32λ<32><CEBB><EFBFBD>˴<EFBFBD>Ӧ<EFBFBD><D3A6>16<31><36>32</param>
/// <returns><3E><><EFBFBD><EFBFBD>ֵΪ<D6B5><CEAA><EFBFBD>ܺ<EFBFBD><DCBA><EFBFBD>16λ32λ<32>ַ<EFBFBD></returns>
public static string Md5(string str, int code)
{
if (code == 16) //16λMD5<44><35><EFBFBD>ܣ<EFBFBD>ȡ32λ<32><CEBB><EFBFBD>ܵ<EFBFBD>9~25<32>ַ<EFBFBD><D6B7><EFBFBD>
{
return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower().Substring(8, 16);
}
else//32λ<32><CEBB><EFBFBD><EFBFBD>
{
return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower();
}
}
/// <summary>
/// <20><><EFBFBD><EFBFBD>Md5<64><35><EFBFBD><EFBFBD><EFBFBD>룬Md5Ϊ<35><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
/// </summary>
/// <param name="str"><3E><>Ҫ<EFBFBD><D2AA><EFBFBD>ܵ<EFBFBD><DCB5>ַ<EFBFBD><D6B7><EFBFBD></param>
/// <returns><3E><><EFBFBD><EFBFBD>ֵΪ<D6B5><CEAA><EFBFBD>ܺ<EFBFBD><DCBA><EFBFBD>32λ<32>ַ<EFBFBD></returns>
public static string Md5(string str)
{
//16λMD5<44><35><EFBFBD>ܣ<EFBFBD>ȡ32λ<32><CEBB><EFBFBD>ܵ<EFBFBD>9~25<32>ַ<EFBFBD><D6B7><EFBFBD>
return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower();
}
/// <summary>
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD>񳤶<EFBFBD><F1B3A4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
/// </summary>
/// <param name="VcodeNum"><3E><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>ij<EFBFBD><C4B3><EFBFBD></param>
/// <param name="type"><3E><><EFBFBD>ɵ<EFBFBD><C9B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>0Ϊ<30><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Сд<D0A1><D0B4>ĸ<EFBFBD><C4B8>1Ϊ<31><CEAA><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>2Ϊ<32><CEAA>С<EFBFBD><D0A1>ĸ<EFBFBD><C4B8>3Ϊ<33><CEAA><EFBFBD><EFBFBD>д<EFBFBD><D0B4>ĸ<EFBFBD><C4B8>4Ϊ<34><CEAA>Сд<D0A1><D0B4>ĸ<EFBFBD><C4B8>5<EFBFBD><35><EFBFBD>ּ<EFBFBD>Сд<D0A1><D0B4>6<EFBFBD><36><EFBFBD>ּӴ<D6BC>д<EFBFBD><D0B4></param>
/// <returns></returns>
public static string RndNum(int VcodeNum, int type)
{
string Vchar;
//<2F><><EFBFBD>ִ<EFBFBD>
string num = "0,1,2,3,4,5,6,7,8,9,";
//Сд<D0A1><D0B4>ĸ
string lower = "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,";
//<2F><>д<EFBFBD><D0B4>ĸ
string upper = lower.ToUpper();
switch (type)
{
case 0:
Vchar = num + lower + upper;
break;
case 1:
Vchar = num;
break;
case 2:
Vchar = lower;
break;
case 3:
Vchar = upper;
break;
case 4:
Vchar = upper + lower;
break;
case 5:
Vchar = num + lower;
break;
case 6:
Vchar = num + upper;
break;
default:
Vchar = num + lower + upper;
break;
}
Vchar = Vchar.Substring(0, Vchar.Length - 1);
string[] VcArray = Vchar.Split(new Char[] { ',' });
string VNum = "";
Random rand = new Random();
for (int i = 1; i < VcodeNum + 1; i++)
{
VNum += VcArray[rand.Next(VcArray.Length)];
}
return VNum;
}
/// <summary>
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD>ͼƬ<CDBC><C6AC><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䵽ͼƬ<CDBC><C6AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
/// </summary>
/// <param name="pg">ҳ<>棬<EFBFBD><E6A3AC><EFBFBD><EFBFBD>this</param>
/// <param name="checkCode"><3E><>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ͼƬ<CDBC><C6AC><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD></param>
public static void ValidateCode(Page pg, string checkCode)
{
int iwidth = (int)(checkCode.Length * 13);
System.Drawing.Bitmap image = new System.Drawing.Bitmap(iwidth, 18);
Graphics g = Graphics.FromImage(image);
g.Clear(Color.White);
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ
Color[] c = { Color.Black, Color.Red, Color.DarkBlue, Color.Green, Color.Orange, Color.Brown, Color.DarkCyan, Color.Purple };
string[] font = { "Verdana", "Microsoft Sans Serif", "Comic Sans MS", "Arial", "<22><><EFBFBD><EFBFBD>" };
Random rand = new Random();
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
for (int i = 0; i < 20; i++)
{
int x = rand.Next(image.Width);
int y = rand.Next(image.Height);
g.DrawRectangle(new Pen(Color.LightGray, 0), x, y, 1, 1);
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><C9AB><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD>ַ<EFBFBD>
for (int i = 0; i < checkCode.Length; i++)
{
int cindex = rand.Next(c.Length);
int findex = rand.Next(font.Length);
Font f = new System.Drawing.Font(font[findex], 12, System.Drawing.FontStyle.Bold);
Brush b = new System.Drawing.SolidBrush(c[cindex]);
//<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD>ò<EFBFBD>ͬ
int ii = 0;
if ((i + 1) % 2 == 0)
{
ii = 1;
}
g.DrawString(checkCode.Substring(i, 1), f, b, 1 + (i * 13), ii);
}
//<2F><>һ<EFBFBD><D2BB><EFBFBD>߿<EFBFBD>
//g.DrawRectangle(new Pen(Color.Black,0),0,0,image.Width-1,image.Height-1);
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
System.IO.MemoryStream ms = new System.IO.MemoryStream();
image.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
pg.Response.ClearContent();
pg.Response.ContentType = "image/Gif";
pg.Response.BinaryWrite(ms.ToArray());
g.Dispose();
image.Dispose();
}
}
}
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