检测上传图片是否安全函数代码,Asp.Net代码库,德仔网

代码语言

代码分类

【Asp.Net】检测上传图片是否安全函数

作者:xqf222 / 发布于2014/2/25/ 338

检测上传图片是否安全函数

//添加引用System.Text;

//添加引用System.IO;



/// <summary>
 /// C#检测上传图片是否安全函数
 /// </summary>
 /// <param name="strPictureFilePath"></param>
 public void CheckPictureSafe(string strPictureFilePath)
 {
 bool strReturn = true;
 if (!File.Exists(strPictureFilePath))
 {
 StringBuilder str_Temp = new StringBuilder();
 try
 {
 using (StreamReader sr = new StreamReader(strPictureFilePath)) //按文本文件方式读取图片内容
 {
 String line;
 while ((line = sr.ReadLine()) != null)
 {
 str_Temp.Append(line + ",");
 }
 //检测是否包含危险字符串
 if (str_Temp == null)
 {
 strReturn = false;
 }
 else
 {
 str_Temp = str_Temp.Replace("'", "''");
 string DangerString = "script|iframe|.getfolder|.createfolder|.deletefolder|.createdirectory|.deletedirectory|.saveas|wscript.shell|script.encode|server.|.createobject|execute|activexobject|language=|include|filesystemobject|shell.application";
 string[] sArray = DangerString.Split('|');
 foreach (string i in sArray)
 {
 strReturn = true;
 break;
 }
 }
 sr.Close();
 }
 if (strReturn)
 {
 File.Delete(strPictureFilePath);
 }
 }
 catch (Exception ex)
 {
 throw new Exception(ex.Message);
 }
 }
 }

试试其它关键字

　上传图片是否安全　

同语言下

可能有用的

xqf222贡献的其它代码(82)