奇怪的问题，在Safari和Asp.net饼干 [英] Strange problem with cookies in Safari and Asp.net

问题描述

我有我的登录页在Asp.net才会出现这种问题的Safari。在一个奇怪的问题。

当用户通过验证我从数据库中提取用户的名称（在数据库中的字段是UTF8），并将其保存在cookie中。问题是，当用户有特殊字符的名字我重定向到哪里，我从没有被记录在附带的页面。例如，穆勒工作正常，并且用户已经登录，但不是默勒。

此外，这仅与野生动物园发生，当我有在名称中的特殊字符。不工作的行是：Response.Cookies [用户信息] [名称] = getNameFromUserid（用户ID）;

这是我的code：

 字符串userid = validUserWithEmail（TextBoxEmail.Text，TextBoxPassword.Text）;
如果（用户ID！= NULL）{
    //有效的用户
    。Response.Cookies [用户信息] =到期DateTime.Now.AddDays（30）;
    Response.Cookies [用户信息] [名称] = getNameFromUserid（用户ID）;    FormsAuthentication.RedirectFromLoginPage（用户ID，CheckBoxPersistCookie.Checked）;
}
其他
{
    //不是有效的用户显示信息为用户或某事
}
 

解决方案

Safari浏览器将不设置与非ASCII字符cookies在他们的价值和其他浏览器可以在它们的显示非ASCII字符未predictable。作为分号也没有在cookie值允许任何浏览器我会建议使用UrlEn code / UrlDe code。

如果你只是写cookie并没有在现场读取控制/显示值放在URLDe code你也可以做这样的事情：

  ckCookie.Value =（Server.HtmlEn code（strSpecialCharacters））更换。（;，）;
 

这将确保满弦在饼干和Safari，Chrome浏览器，Firefox和IE的设置仍将识别HTML codeS即使没有;和阅读时不需要解码。

有关的cookie规格较长的回答，请参阅：<一href=\"http://stackoverflow.com/questions/1969232/allowed-characters-in-cookies/1969339#1969339\">Allowed在cookie中的字符

I have a strange problem on my login page in Asp.net this problem only happens with Safari.

When the user is validated I fetch the name of the user from the database (the field in the database is UTF8) and save it in a cookie. The problem is that when the user has a name with special characters I get redirected to the page where I came from without being logged in. For example "Moller" works fine and the user is logged in but not "Møller".

Again this is only happening with Safari and when I have special characters in the name. The row that isn't working is: Response.Cookies["userInfo"]["name"] = getNameFromUserid(userid);

This is my code:

string userid = validUserWithEmail(TextBoxEmail.Text, TextBoxPassword.Text);
if (userid != null) {
    //VALID USER
    Response.Cookies["userInfo"].Expires = DateTime.Now.AddDays(30);
    Response.Cookies["userInfo"]["name"] = getNameFromUserid(userid);

    FormsAuthentication.RedirectFromLoginPage(userid, CheckBoxPersistCookie.Checked);
} 
else
{
    //NOT A VALID USER SHOW A MESSAGE FOR THE USER OR SOMETHING
}

解决方案

Safari will not set cookies with non-ASCII characters in their value and other browsers can be unpredictable in how they display non-ASCII characters. As semi-colon is also not allowed in cookie values for any browser I would recommend using UrlEncode/UrlDecode.

If you are just writing the cookie and do not have control over the site reading/displaying the value to put in the URLDecode you can also do something like this:

ckCookie.Value = (Server.HtmlEncode( strSpecialCharacters )).Replace(";","");

This will ensure the full string is set in the cookie and Safari, Chrome, Firefox and IE will still recognize the html codes even without the ; and does not require decoding when read.

For a longer answer on cookie specs see: Allowed characters in cookies

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