google api 授权登录

配置信息：
client_id：2881223983 8fbmhnv90qqu90.apps.googleusercontent.com
project_id：letsf-5de
auth_uri：https://accounts.google.com/o/oauth2/auth
token_uri：https://oauth2.googleapis.com/token
auth_provider_x509_cert_url：https://www.googleapis.com/oauth2/v1/certs
client_secret：_ArbkfHbauyr1cAiDA
redirect_uris：https://xxx.com
javascript_origins：https://xxx.com/aa

账号密码
xxx@gmail.com
*****

中文参考手册（Web 服务器应用程序中使用 OAuth 2.0）
https://wiki.jikexueyuan.com/project/google-oauth-2/web-apps.html

1 第一步获取code
https://accounts.google.com/o/oauth2/auth?
scope=https://www.googleapis.com/auth/userinfo.profile
&redirect_uri=http://xxx.com/test/aa
&response_type=code
&client_id=288xn6ui9s8fbmhnv90qqu90.apps.googleusercontent.com
&access_type=offline
&approval_prompt=force

2 第二步去回调地址接收code 和 scope
https://api.letscom.com/test/aa
?code=4%2F0QHT413ihOGwOOTW-PeWI5XD1xIIpl7akx4m_f19Zt90kE7i1jC4AzzEmKZTFtZ31kJTvkOLA
&scope=profile+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fuserinfo.profile#

3 获取access_token
https://accounts.google.com/o/oauth2/token
code=4/0AGxDUoeXkhRUMRdCge3wT_4tRDNT0vLOtWXgihWEjVbKmk
redirect_uri=http://xxx.com/test/aa
&client_id=288122398339-acsrn1si5xmhnv90qqu90.apps.googleusercontent.com
&scope=https://www.googleapis.com/auth/content
&client_secret=_ArbOxauyr1cAiDA
&grant_type=authorization_code

3 获取 access_token
https://www.googleapis.com/oauth2/v3/token
?refresh_token=1//0ehlQgdxRAAGA4SNwF-L9IrqbxP-N5zUZe7TmIxvqgopB_uP0Do5pN716GpmO8eg
&client_id=288122398339-acsrnxnv90qqu90.apps.googleusercontent.com
&client_secret=_Arbxyr1cAiDA
&grant_type=refresh_token

返回数据：
{
"access_token": "ya29.a0AfH6SM7...DL4-Fl10-CbmP-HbY",
"expires_in": 3599,
"refresh_token": "1//0edhlgop...B_uP0Do5pN716GpmO8eg",
"scope": "https://www.googleapis.com/auth/content",
"token_type": "Bearer",
"id_token": "eyJhbGciO...TqaYRxjjW5XhGOT8xA"
}

4 获取用户信息
https://www.googleapis.com/oauth2/v1/userinfo?alt=json&access_token=ya29...xZf1feo01v7ss7SFCwIw
返回用户信息
{
"id": "115304811039070037277",
"name": "xuelei lin",
"given_name": "xuelei",
"family_name": "lin",
"picture": "https://lh3.googleusercontxpiT_enTQ8GU0us5CkPgkh4bP8VR4vLpN0q",
"locale": "zh-CN"
}