flash - asp.net mvc 3 flash 上传器忽略 cookie（替代？）

Question

我在我创建的网站中使用了 Flash 上传器。我需要将大文件上传到服务器。问题是这个上传器使用闪存。当它提交数据时，cookie 不会发送回服务器，因此我无法验证用户，这将失败。无论如何强制将cookies发送回服务器？如果这不可能，是否有其他方法可以使用其他发送回 cookie 的组件上传数据。

Answer 1

有几个网站讨论了这个问题。解决方案是，使用 flash 中的另一个 post 变量手动将授权信息传递回 MVC。我发现的一个实现是TokenizedAuthorizeAttribute.

/// <summary>
/// A custom version of the <see cref="AuthorizeAttribute"/> that supports working
/// around a cookie/session bug in Flash.  
/// </summary>
/// <remarks>
/// Details of the bug and workaround can be found on this blog:
/// http://geekswithblogs.net/apopovsky/archive/2009/05/06/working-around-flash-cookie-bug-in-asp.net-mvc.aspx
/// </remarks>
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = true)]
public class TokenizedAuthorizeAttribute : AuthorizeAttribute
{
    /// <summary>
    /// The key to the authentication token that should be submitted somewhere in the request.
    /// </summary>
    private const string TOKEN_KEY = "AuthenticationToken";

    /// <summary>
    /// This changes the behavior of AuthorizeCore so that it will only authorize
    /// users if a valid token is submitted with the request.
    /// </summary>
    /// <param name="httpContext"></param>
    /// <returns></returns>
    protected override bool AuthorizeCore(System.Web.HttpContextBase httpContext)
    {
        string token = httpContext.Request.Params[TOKEN_KEY];

        if (token != null)
        {
            FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(token);

            if (ticket != null)
            {
                FormsIdentity identity = new FormsIdentity(ticket);
                string[] roles = System.Web.Security.Roles.GetRolesForUser(identity.Name);
                GenericPrincipal principal = new GenericPrincipal(identity, roles);
                httpContext.User = principal;
            }
        }

        return base.AuthorizeCore(httpContext);
    }
}

按照评论中的链接将进一步帮助您。