我知道线程很旧,但是另一个可行的解决方案是创建和 HTTP 模块来修复 http post over cookieless。
这是我使用的一个
using System;
using System.Collections.Specialized;
using System.Web;
using System.Web.SessionState;
using System.IO;
using System.Text;
namespace CustomModule
{
public sealed class CookielessPostFixModule : IHttpModule
{
public void Init (HttpApplication application)
{
application.EndRequest += new
EventHandler(this.Application_EndRequest);
}
private string ConstructPostRedirection(HttpRequest req,
HttpResponse res)
{
StringBuilder build = new StringBuilder();
build.Append(
"<html>\n<body>\n<form name='Redirect' method='post' action='");
build.Append(res.ApplyAppPathModifier(req.Url.PathAndQuery));
build.Append("' id='Redirect' >");
foreach (object obj in req.Form)
{
build.Append(string.Format(
"\n<input type='hidden' name='{0}' value = '{1}'>",
(string)obj,req.Form[(string)obj]));
}
build.Append(
"\n<noscript><h2>Object moved <input type='submit' value='here'></h2></noscript>");
build.Append(@"</form>"+
"<script language='javascript'>"+
"<!--"+
"document.Redirect.submit();"+
"// -->"+
"</script>");
build.Append("</body></html>");
return build.ToString();
}
private bool IsSessionAcquired
{
get
{
return (HttpContext.Current.Items["AspCookielessSession"]!=null &&
HttpContext.Current.Items["AspCookielessSession"].ToString().Length>0);
}
}
private string ConstructPathAndQuery(string[] segments)
{
StringBuilder build = new StringBuilder();
for (int i=0;i<segments.Length;i++)
{
if (!segments[i].StartsWith("(")
&& !segments[i].EndsWith(")"))
build.Append(segments[i]);
}
return build.ToString();
}
private bool IsCallingSelf(Uri referer,Uri newpage)
{
if(referer==null || newpage==null)
return false;
string refpathandquery = ConstructPathAndQuery(
referer.Segments);
return refpathandquery == newpage.PathAndQuery;
}
private bool ShouldRedirect
{
get
{
HttpRequest req = HttpContext.Current.Request;
return (!IsSessionAcquired
&& req.RequestType.ToUpper() == "POST"
&& !IsCallingSelf(req.UrlReferrer,req.Url));
}
}
private void Application_EndRequest(Object source, EventArgs e)
{
HttpRequest req = HttpContext.Current.Request;
HttpResponse res = HttpContext.Current.Response;
if (!ShouldRedirect) return;
res.ClearContent();
res.ClearHeaders();
res.Output.Flush();
char[] chr = ConstructPostRedirection(req,res).ToCharArray();
res.Write(chr,0,chr.Length);
}
public void Dispose()
{}
}
}