public static bool IsAllowedExtension(HttpPostedFile fu, KindEditor_upload_json.FileExtension[] fileEx)
{
int contentLength = fu.ContentLength;
byte[] buffer = new byte[contentLength];
fu.InputStream.Read(buffer, 0, contentLength);
MemoryStream memoryStream = new MemoryStream(buffer);
BinaryReader binaryReader = new BinaryReader(memoryStream);
string text = "";
bool result;
try
{
text = binaryReader.ReadByte().ToString();
text += binaryReader.ReadByte().ToString();
}
catch
{
result = false;
return(result);
}
finally
{
binaryReader.Close();
if (memoryStream != null)
{
memoryStream.Close();
}
}
for (int i = 0; i < fileEx.Length; i++)
{
KindEditor_upload_json.FileExtension fileExtension = fileEx[i];
try
{
if (int.Parse(text) == (int)fileExtension)
{
result = true;
return(result);
}
}
catch
{
result = false;
return(result);
}
}
result = false;
return(result);
}
protected void Page_Load(object sender, EventArgs e)
{
this.savePath += DateTime.Now.ToString("yyMM");
this.saveUrl += DateTime.Now.ToString("yyMM");
HttpPostedFile httpPostedFile = base.Request.Files["imgFile"];
if (httpPostedFile == null)
{
this.showError("请选择文件。");
}
string text = base.Server.MapPath(this.savePath);
if (!Directory.Exists(text))
{
FileSystemManager.CreateFolder(DateTime.Now.ToString("yyMM"), base.Server.MapPath("~/KindEditor/attached"));
}
if (!Directory.Exists(text))
{
this.showError("上传目录不存在。");
}
string fileName = httpPostedFile.FileName;
string text2 = Path.GetExtension(fileName).ToLower();
ArrayList.Adapter(this.fileTypes.Split(new char[]
{
','
}));
if (httpPostedFile.InputStream == null || httpPostedFile.InputStream.Length > (long)this.maxSize)
{
this.showError("上传文件大小超过限制。");
}
if (string.IsNullOrEmpty(text2) || Array.IndexOf <string>(this.fileTypes.Split(new char[]
{
','
}), text2.Substring(1).ToLower()) == -1)
{
this.showError("上传文件扩展名是不允许的扩展名。");
}
KindEditor_upload_json.FileExtension[] fileEx = new KindEditor_upload_json.FileExtension[]
{
KindEditor_upload_json.FileExtension.GIF,
KindEditor_upload_json.FileExtension.JPG,
KindEditor_upload_json.FileExtension.PNG,
KindEditor_upload_json.FileExtension.BMP
};
if (!KindEditor_upload_json.IsAllowedExtension(httpPostedFile, fileEx))
{
this.showError("非法图片文件! 上传文件发生异常。");
}
string str = DateTime.Now.ToString("yyyyMMddHHmmss_ffff", DateTimeFormatInfo.InvariantInfo) + text2;
string filename = text + "/" + str;
httpPostedFile.SaveAs(filename);
string value = this.saveUrl + "/" + str;
Hashtable hashtable = new Hashtable();
hashtable["error"] = 0;
hashtable["url"] = value;
base.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
base.Response.Write(JsonMapper.ToJson(hashtable));
base.Response.End();
}
