C# .NET 防盗链

原创于 2022-11-04 07:00:00 发布 · 1k 阅读

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webConfig文件增加如下配置

<httpHandlers>
   <add verb="*" path="*.jpg,*.jpeg,*.gif,*.png,*.bmp" type=" type="MvcApplication1.Handlers.TestHandler,MvcApplication1""/>
</httpHandlers>

C# 代码

namespace MvcApplication1.Handlers
{
    public class TestHandler : IHttpHandler
    {
        public void ProcessRequest(HttpContext context)
        {
            Uri uri = context.Request.UrlReferrer;
 
            if (uri == null)
            {
                context.Response.Write("来源地址不合法");
                context.Response.End();
            }
 
            string host = uri.Host.ToString().ToLower();
            bool result = host.IndexOf("test.com") > -1;
            if (result)
                context.Response.WriteFile(context.Request.PhysicalPath);
            else
                context.Response.Write("来源地址不合法");
 
        }
 
        public bool IsReusable
        {
            get { return true; }
        }
    }
}