Question

我正在为我的客户在网站上添加一项功能，如果禁用了cookie，则会在登录页面上显示div。我首先开始在chrome中测试它，关闭cookie，然后

if (document.cookies == "") {
    // show div to tell users cookies are disabled on their machine.
}

一切正常。另外在我的Page_Load代码隐藏中，我正在尝试设置cookie

protected void Page_Load(object sender, EventArgs e) 
{
    Response.Cookies["test"].Value = "test";
    Response.Cookies["test"].Expires = DateTime.Now.AddDays(1);
}

在铬土地上似乎都很好。接下来，我转到IE7，阻止所有cookie，为安全起见，删除我的所有历史记录和cookie以防万一。我希望看到我的div，但没有。

所以，我在if中添加了一个else（document.cookies ==“”）{}在javascript中读取cookie，确定有我的测试cookie。

我进入了工具 - ＆gt; Internnet选项 - ＆gt;隐私标签 - ＆gt;并将滑块一直移到顶部，“阻止所有Cookie”。在隐私选项卡中，我单击“高级”按钮并设置第一方cookie和第三方cookie以提示。我认为它应该被阻止。

例如，作为测试，我在ie7中访问google.com，如果我想允许或阻止来自Google的两个Cookie，它会提醒我。

我需要做些什么来检查ie7中禁用的cookie？

我创建了一个cookies.js文件，用于创建，阅读和删除

function createCookie(name, value, days) {
    var expires = "";
    if (days) {
        var date = new Date();
        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
        expires = "; expires=" + date.toGMTString();
     }

     document.cookie = name + "=" + value + expires + "; path=/";
}

function readCookie(name) {

    //  we're going to search for the name of the cookie, followed by an =. So create this new string and put it in nameEQ
    var nameEQ = name + "=";

    //  split document.cookie on the semicolons. ca becomes an array containing all cookies that are set for this domain and path.
    var ca = document.cookie.split(';');

    for (var i = 0; i < ca.length; i++) {

        //  set c to the cookie to be checked.
        var c = ca[i];

        //  if the first character is a space, remove it by using the 'substring()' method. continue doing this until the first character is not a space.
        while (c.charAt(0) == ' ') c = c.substring(1, c.length);

        //  now string c begins with the name of the current cookie. if this is the name of the desired cookie, we've found what we are looking for.
        //  we now only need to return the value of the cookie, which is the part of c that comes after nameEQ. By 
        //  returning this value we also end the function: mission accomplished.
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);

    }

    //  if after having gone through all cookies, we haven't found the name we are looking for, the cookie is not present, just return null.
    return null;

}

function eraseCookie(name) {
    createCookie(name, "", -1);
}

function cookiesEnabled() {
    if (document.cookies == "") {
       return false;
    }

    return true;
}

刚开始下载并下载了jquery.cookie.js，并在我的函数中检查cookie是否已经完成，我有这个：

function cookiesEnabled() {
    var TEST_COOKIE = 'test_cookie';
    $.cookie(TEST_COOKIE, true);
    if ($.cookie(TEST_COOKIE)) {
        $.cookie(TEST_COOKIE, null);
        return true;
    }
    return false;
}

这适用于chrome和firefox，但不适用于ie7。

我也尝试过这个：

function cookiesEnabled() {
    var cookieEnabled = (navigator.cookieEnabled) ? true : false;

    if (typeof navigator.cookieEnabled === "undefined" && !cookieEnabled) {
        document.cookie = "testcookie";
        cookieEnabled = (document.cookie.indexOf("testcookie") != -1) ? true : false;
    }

    return cookieEnabled;
}

这确实奏效了。我认为在某一点或navigator.cookieEnabled得到ie支持，但看起来chrome和firefox也支持它。

这件事真的开始让我紧张了!!!

Answer 1

这是我发现的旧测试。

它仍适用于IE吗？

对于其他浏览器，它需要一个setCookie，getCookie和delCookie函数，如果需要我也可以使用它

function isCookieEnabled() {
   if (document.all) return navigator.cookieEnabled;
   setCookie('testcookie',today.getTime());
   var tc = getCookie('testcookie');
   delCookie('testcookie');
   return (tc == today.getTime());
}

/* Cookie functions originally by Bill Dortsch */
function setCookie (name,value,expires,path,theDomain,secure) { 
   value = escape(value);
   var theCookie = name + "=" + value + 
   ((expires)    ? "; expires=" + expires.toGMTString() : "") + 
   ((path)       ? "; path="    + path   : "") + 
   ((theDomain)  ? "; domain="  + theDomain : "") + 
   ((secure)     ? "; secure"            : ""); 
   document.cookie = theCookie;
} 

function getCookie(Name) { 
   var search = Name + "=" 
   if (document.cookie.length > 0) { // if there are any cookies 
      offset = document.cookie.indexOf(search) 
      if (offset != -1) { // if cookie exists 
         offset += search.length 
         // set index of beginning of value 
         end = document.cookie.indexOf(";", offset) 
         // set index of end of cookie value 
         if (end == -1) end = document.cookie.length 
         return unescape(document.cookie.substring(offset, end)) 
      } 
   } 
} 
function delCookie(name,path,domain) {
   if (getCookie(name)) document.cookie = name + "=" +
      ((path)   ? ";path="   + path   : "") +
      ((domain) ? ";domain=" + domain : "") +
      ";expires=Thu, 01-Jan-70 00:00:01 GMT";
//   alert(name+' marked for deletion');
}

ie7 cookies没有在我的网站上被阻止

1 个答案: