Javascript SDK自动登录 [英] Javascript SDK automatically login
问题描述
这是我的代码：
脚本>
window.fbAsyncInit = function（）{
FB.init（{
appId：'MY_APP_ID'，// App ID
status：true，
cookie：true ，
xfbml：true，
oauth：true，
}）;
FB.getLoginStatus（function（response）{
FB.login（function（response）{
if（response.authResponse）{
FB.api（'/ me'函数（响应）{
alert（'Good to see you，'+ response.email +'。'）;
}）;
} else {
alert（'User取消登录或未完全授权。'）;
}
}）;
}）;
//其他初始化代码在这里
};
//异步加载SDK
（function（d）{
var js，id ='facebook-jssdk'; if（d.getElementById（id））{return ;}
js = d.createElement（'script'）; js.id = id; js.async = true;
js.src =//connect.facebook.net/en_US/all。 js;
d.getElementsByTagName（'head'）[0] .appendChild（js）;
}（document））;
< / script>
FB.getLoginStatus 方法用于知道用户是否已登录
使用FB.login 提示登录页面来验证和授权应用程序。
您正在调用FB.getLoginStatus方法，而不是一直关注响应并触发fb.login按钮。
如果您一直希望用户点击登录按钮，请勿使用 FB.getLoginStatus
使用此代码
< html>
< head>
< title>我的Facebook登录页面< / title>
< / head>
< body>
< div id =fb-root>< / div>
< script>
window.fbAsyncInit = function（）{
FB.init（{
appId：'YOUR_APP_ID'，// App ID
channelUrl：'//WWW.YOUR_DOMAIN.COM/ channel.html'，// Channel File
status：true，//检查登录状态
cookie：true，//启用Cookie以允许服务器访问会话
xfbml：true / /解析XFBML
}）;
};
//异步加载SDK
（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>使用Facebook登录< / div>
< / body>
< / html>
FYI： https://developers.facebook.com/docs/guides/web/
检查认证部分
I'am trying to get the Login button from Facebook to work on my website using the Javascript SDK. If the user is logged on, I get the email address back. This works. But on the page where I have my Facebook Login button, I also have the normal login for my website. (username & password). But when I go to my login page, the page automatically loads the Facebook button and the Facebook login dialog appears. But I don't want to load this button automatically. I want that users always have to press the login button for Facebook. Is this possible?
This is my code:
<script>
window.fbAsyncInit = function() {
FB.init({
appId: 'MY_APP_ID', // App ID
status: true,
cookie: true,
xfbml: true,
oauth: true,
});
FB.getLoginStatus(function(response) {
FB.login(function(response) {
if (response.authResponse) {
FB.api('/me', function(response) {
alert('Good to see you, ' + response.email + '.');
});
} else {
alert('User cancelled login or did not fully authorize.');
}
});
});
// Additional initialization code here
};
// Load the SDK Asynchronously
(function(d){
var js, id = 'facebook-jssdk'; if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
d.getElementsByTagName('head')[0].appendChild(js);
}(document));
</script>
FB.getLoginStatus method is used to know whether user has logged in or not
FB.login is used to prompt login page to authenticate and authorize the app.
you are calling FB.getLoginStatus method and not bothering about the response and firing fb.login button always.
If you always want user to click login button don't use FB.getLoginStatus
Use this code
<html>
<head>
<title>My Facebook Login Page</title>
</head>
<body>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : 'YOUR_APP_ID', // App ID
channelUrl : '//WWW.YOUR_DOMAIN.COM/channel.html', // Channel File
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
};
// 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">Login with Facebook</div>
</body>
</html>
FYI: https://developers.facebook.com/docs/guides/web/
check authentication section
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