谷歌gmail也是很常用了，第三方登录也和qq微信那样一样方便。
如下就详解怎么对接，谷歌三方登录申请非常简单创建即用。
首先需要先新增一个凭据：
创建凭据 -> OAuth 客户端 ID -> 网页应用，之后输入 JavaScript 来源、重定向 URI
https://console.developers.google.com/apis/credentials
新增一个oauth，然后一步步往下就行。
添加一个主域和回调域名，
主域名和回调域名可以为本地地址！
在需要调用谷歌登录的地方加入如下HTML代码 ，官方调用示例：
<html>
<head>
<meta name="google-signin-scope" content="profile email">
<meta name="google-signin-client_id" content="YOUR_CLIENT_ID.apps.googleusercontent.com">
<script src="https://apis.google.com/js/platform.js" async defer></script>
</head>
<body>
<div data-onsuccess="onSignIn" data-theme="dark"></div>
<script>
function onSignIn(googleUser) {
// Useful data for your client-side scripts:
var profile = googleUser.getBasicProfile();
console.log("ID: " + profile.getId()); // Don't send this directly to your server!
console.log('Full Name: ' + profile.getName());
console.log('Given Name: ' + profile.getGivenName());
console.log('Family Name: ' + profile.getFamilyName());
console.log("Image URL: " + profile.getImageUrl());
console.log("Email: " + profile.getEmail());
// The ID token you need to pass to your backend:
var id_token = googleUser.getAuthResponse().id_token;
console.log("ID Token: " + id_token);
};
//注销
function signOut() {
var auth2 = gapi.auth2.getAuthInstance();
auth2.signOut().then(function () {
alert('用户注销成功');
});
}
</script>
</body>
</html>前台获取相关谷歌用户登录信息https://developers.google.com/identity/sign-in/web/
然后拿到id_token去后台进行校验：
require_once 'vendor/autoload.php';
// Get $id_token via HTTPS POST.
$client = new Google_Client(['client_id' => $CLIENT_ID]); // Specify the CLIENT_ID of the app that accesses the backend
$payload = $client->verifyIdToken($id_token);
if ($payload) {
$userid = $payload['sub'];
// If request specified a G Suite domain
} else {
// Invalid ID token
}sub和前台获取到的id进行对比，如果一致就是登陆成功。
当然还有另外一种方式直接get校验！
https://www.googleapis.com/oauth2/v3/tokeninfo?id_token=xxxxx
会获取到如下json数据，进行判断校验即可。
{
// These six fields are included in all Google ID Tokens.
"iss": "https://accounts.google.com",
"sub": "110169484474386276334",
"azp": "1008719970978-hb24n2dstb40o45d4feuo2ukqmcc6381.apps.googleusercontent.com",
"aud": "1008719970978-hb24n2dstb40o45d4feuo2ukqmcc6381.apps.googleusercontent.com",
"iat": "1433978353",
"exp": "1433981953",
// These seven fields are only included when the user has granted the "profile" and
// "email" OAuth scopes to the application.
"email": "testuser@gmail.com",
"email_verified": "true",
"name" : "Test User",
"picture": "https://lh4.googleusercontent.com/-kYgzyAWpZzJ/ABCDEFGHI/AAAJKLMNOP/tIXL9Ir44LE/s99-c/photo.jpg",
"given_name": "Test",
"family_name": "User",
"locale": "en"
}后台校验文档：https://developers.google.com/identity/sign-in/android/backend-auth?hl=zh-cn
关键字词:
