如何检查浏览器是否在web应用程序中启用了Cookie
本文关键字:应用程序 web 启用 Cookie 是否 何检查 检查 浏览器 | 更新日期: 2023-09-27 18:26:47
我决定重写这个问题,因为我发现了一些关于如何完成上述任务的信息:http://msdn.microsoft.com/en-us/library/aa289495%28v=vs.71%29.aspx
然而,我的问题是,我正在尝试对Login.aspx.cs
的Page_Load
事件执行所有这些操作。
起初,它似乎运行良好,直到我尝试通过输入凭据并单击"登录"按钮来实际登录。然后所有的地狱之旅都失败了,我陷入了无尽的循环。它一直在Login.aspx.cs
和TestForCookies.aspx.cs
上的Page_Loads之间来回移动。每次重定向URL增加一个"?AcceptCookies=1
"。有解决办法吗?
登录.aspx.cs代码:
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
if (Request.QueryString["AcceptsCookies"] == null)
{
Response.Cookies["TestCookie"].Value = "ok";
Response.Cookies["TestCookie"].Expires = DateTime.Now.AddMinutes(1);
Response.Redirect(BasePage.ResolveUrl("~/Common/TestForCookies.aspx?redirect=" + Server.UrlEncode(Request.Url.ToString())));
}
else
{
LoginBox.InstructionText = "Accept cookies = " + Request.QueryString["AcceptsCookies"];
}
}
}
TestForCookies.aspx.cs代码:
protected void Page_Load(object sender, EventArgs e)
{
string redirect = Request.QueryString["redirect"];
string acceptsCookies = null;
// Was the cookie accepted?
if (Request.Cookies["TestCookie"] == null)
{
// No cookie, so it must not have been accepted
acceptsCookies = "0";
}
else
{
acceptsCookies = "1";
// Delete test cookie
Response.Cookies["TestCookie"].Expires = DateTime.Now.AddDays(-1);
}
string url = redirect + "?AcceptsCookies=" + acceptsCookies;
Response.Redirect(url);
}
这可能很麻烦。我在登录页面上所做的基本上是以下步骤:
- 在"登录"上,单击张贴回服务器,验证用户的凭据。如果登录成功
- 设置我的cookie并发送JS,点击隐藏的"确认cookie"按钮返回浏览器。这是一个额外的往返行程,但cookie应该是双向有效负载的一部分
- 回到服务器上的"确认cookie"按钮的处理程序中,我检查cookie。如果它在那里,我们很好,我重定向。如果没有,我会发回内容,说cookie被禁用,并附上如何启用它们的链接
希望这能有所帮助!
我想我解决了这个问题。由于URL地址格式错误,重定向没有正确完成。
登录.aspx.cs
if (!Page.IsPostBack)
{
if (Request.QueryString["AcceptsCookies"] != null)
{
if (Request.QueryString["AcceptsCookies"].ToString() == "0")
{
LoginBox.InstructionText = Resources.Resource.Login10;
}
}
else
{
Response.Cookies["TestCookie"].Value = "ok";
Response.Cookies["TestCookie"].Expires = DateTime.Now.AddMinutes(1);
string url = Request.Url.ToString();
url = url.Replace("ReturnUrl", "AcceptsCookies=&ReturnUrl");
Response.Redirect(BasePage.ResolveUrl("~/Common/TestForCookies.aspx?redirect=" + Server.UrlEncode(url)));
}
}
TestForCookies.aspx.cs
string redirect = Request.QueryString["redirect"];
string acceptsCookies = null;
// Was the cookie accepted?
if (Request.Cookies["TestCookie"] == null)
{
// No cookie, so it must not have been accepted
acceptsCookies = "0";
}
else
{
acceptsCookies = "1";
// Delete test cookie
Response.Cookies["TestCookie"].Expires = DateTime.Now.AddDays(-1);
}
redirect = redirect.Replace("AcceptsCookies=", "AcceptsCookies=" + acceptsCookies);
Response.Redirect(BasePage.ResolveUrl(redirect), true);
}