我正在尝试设置我的网站,以便当您进入登录页面时,它会检查是否设置了 cookie,如果设置了则登录应该是自动的 - 即当此页面加载时,它会重定向到创建的“Facebook.ashx”用于记住访问令牌的 cookie。
但是,如果未设置 cookie,则用户必须单击“使用 Facebook 登录”按钮才能继续登录,然后像以前一样继续重定向到“Facebook.ashx”。
这是我的代码 - 目前它总是在用户接受应用程序并继续“Facebook.ashx”后登录
<div id="fb-root"></div>
<script type="text/javascript">
window.fbAsyncInit = function () {
FB.init({
appId: 'My_App_ID', // App ID
status: true, // check login status
cookie: true, // enable cookies to allow the server to access the session
xfbml: true // parse XFBML
});
// Additional initialization code here
FB.Event.subscribe('auth.authResponseChange', function (response) {
if (response.status === 'connected') {
// the user is logged in and has authenticated your
// app, and response.authResponse supplies
// the user's ID, a valid access token, a signed
// request, and the time the access token
// and signed request each expire
var uid = response.authResponse.userID;
var accessToken = response.authResponse.accessToken;
// TODO: Handle the access token
// Do a post to the server to finish the logon
// This is a form post since we don't want to use AJAX
var form = document.createElement("form");
var redirect = "FacebookLogin.ashx?redirect=" + document.getElementById('redirect').innerHTML;
form.setAttribute("method", 'post');
form.setAttribute("action", redirect);
var field = document.createElement("input");
field.setAttribute("type", "hidden");
field.setAttribute("name", 'accessToken');
field.setAttribute("value", accessToken);
form.appendChild(field);
document.body.appendChild(form);
form.submit();
} else if (response.status === 'not_authorized') {
// the user is logged in to Facebook,
// but has not authenticated your app
} else {
// the user isn't logged in to Facebook.
}
});
};
// Load the SDK Asynchronously
(function(d){
var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
ref.parentNode.insertBefore(js, ref);
}(document));
</script>
<div class="fb-login-button" scope="email, publish_stream">Login with Facebook</div>
感谢您提前提供任何帮助