using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.SessionState;
namespace WebApp
{
public class Global : System.Web.HttpApplication
{
//protected void Application_AcquireRequestState(object sender, EventArgs e)
//{
//}
protected void Application_BeginRequest(object sender, EventArgs e)
{
//判断当前请求，是否请求的images文件夹
//
if (Request.RawUrl.ToLower().Contains("/images/"))
{
Response.ContentType = "image/jpeg";
//判断域名是否相当
Uri referrer = Request.UrlReferrer;
Uri url = Request.Url;
//盗链请求，输出放盗链图片
if (!Compare(url, referrer))
{
string path = Request.MapPath("~/images/daolian.jpg");
Response.WriteFile(path);
Response.End();
}
}
}
bool Compare(Uri u1, Uri u2)
{
return Uri.Compare(u1,u2, UriComponents.HostAndPort, UriFormat.SafeUnescaped, StringComparison.CurrentCultureIgnoreCase) == 0;
}
protected void Application_AuthenticateRequest(object sender, EventArgs e)
{
}
protected void Application_Start(object sender, EventArgs e)
{
}
protected void Session_Start(object sender, EventArgs e)
{
}
protected void Application_Error(object sender, EventArgs e)
{
//Context.Server.GetLastError();
}
protected void Session_End(object sender, EventArgs e)
{
}
protected void Application_End(object sender, EventArgs e)
{
}
}
}