Question

我们有一个asp.net网站，它使用flash电影来上传HTTP文件，它可以在IE上无缝运行。使用firefox时，无法上传.. HTTP调试显示我们发布的页面返回以下内容：

HTTP 302

<html><head><title>Object moved</title></head><body>
<h2>Object moved to <a href="%2fproject_name3%2fDefault.aspx%3fReturnUrl%3d%252fproject_name3%252ffiles%252fuploader.aspx">here</a>.</h2>
</body></html>

这一直困扰着我们一段时间，并感谢任何帮助：）

Answer 1

可能是Flash cookie错误：Flash总是发送IE cookie而不管浏览器。例如，当您使用表单身份验证时，这是一个问题：

创建会话cookie的用户登录。
用户访问Flash组件（例如上传组件），该组件向服务器发出请求，请求访问会话或受到表单身份验证的影响。

调用2将失败，因为没有会话cookie发送到服务器，因为会话cookie在Firefox的cookie中，而Flash正在发送IE：s cookies。在您的情况下，似乎用户被重定向到登录页面（似乎是/default.aspx）。

解决此问题的方法是让Flash组件将cookie作为post参数发送，然后从post参数中重新创建HttpHandler中的cookie。如果需要，我可以发布一些示例代码。

这是我经常使用的SwfUpload组件的常见问题。我也在umbrao里面使用它，所以我也重新创建了umbraco的登录cookie。

更新：这是我使用的HttpModule的源代码：

using System;
using System.Collections.Specialized;
using System.Configuration;
using System.Web;
using System.Web.Configuration;
using System.Web.Security;

namespace cimkey.utility
{
public class SwfUploadModule : IHttpModule
{
    private NameValueCollection paramNameToCookieName;

    private void BuildParamNameToCookieNameList()
    {
        if (paramNameToCookieName != null)
            return;

        // ASP.NET session.
        const string session_param_name = "ASPSESSID";
        SessionStateSection SessionSettings = (SessionStateSection)ConfigurationManager.GetSection("system.web/sessionState");
        string session_cookie_name = SessionSettings.CookieName; // "ASP.NET_SESSIONID";

        // Forms authentication.
        const string auth_param_name = "AUTHID";
        string auth_cookie_name = FormsAuthentication.FormsCookieName;

        paramNameToCookieName = new NameValueCollection
        {
            {   session_param_name,     session_cookie_name }, 
            {   auth_param_name,        auth_cookie_name }, 
            {   "umbracoMemberLogin",   "umbracoMemberLogin"}, 
            {   "umbracoMemberId",      "umbracoMemberId"   }, 
            {   "umbracoMemberGuid",    "umbracoMemberGuid" }
        };
    }

    public void Init(HttpApplication context)
    {
        BuildParamNameToCookieNameList();

        context.BeginRequest += context_BeginRequest;
    }

    public void Dispose()
    {
    }

    void context_BeginRequest(object sender, EventArgs e)
    {
        /* Fix for the Flash Player Cookie bug in Non-IE browsers.
        * Since Flash Player always sends the IE cookies even in FireFox
        * we have to bypass the cookies by sending the values as part of the POST or GET
        * and overwrite the cookies with the passed in values.
        *
        * The theory is that at this point (BeginRequest) the cookies have not been ready by
        * the Session and Authentication logic and if we update the cookies here we'll get our
        * Session and Authentication restored correctly
        */

        try
        {
            foreach (string paramName in paramNameToCookieName.Keys)
            {
                string cookieName = paramNameToCookieName[paramName];

                if (HttpContext.Current.Request.Form[paramName] != null)
                {
                    UpdateCookie(cookieName, HttpContext.Current.Request.Form[paramName]);
                }
                else if (HttpContext.Current.Request.QueryString[paramName] != null)
                {
                    UpdateCookie(cookieName, HttpContext.Current.Request.QueryString[paramName]);
                }
            }

        }
        catch (Exception)
        {
        }
    }

    static void UpdateCookie(string cookie_name, string cookie_value)
    {
        HttpCookie cookie = HttpContext.Current.Request.Cookies.Get(cookie_name);
        if (cookie != null)
        {
            cookie.Value = cookie_value;
            HttpContext.Current.Request.Cookies.Set(cookie);
        }
        else
        {
            cookie = new HttpCookie(cookie_name, cookie_value);
            HttpContext.Current.Request.Cookies.Add(cookie);
        }
    }
}
}

修改它以跟踪您的cookie，它目前检查cookie

ASP.NET会话
表格认证
Umbraco cookies

它检查post和request参数。您的客户端代码必须确保将这些参数发送到服务器（我在jQuery ajax POST调用中发送这些参数）。

火狐＆amp;对象转移到了这里

1 个答案: