本文介绍了如何使用refresh_token获取新的access_token(使用Flask-OAuthLib)?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我正在用构建一个网站+后端,我在其中使用来验证谷歌。认证后,后端需要定期扫描用户他的Gmail。所以当前用户可以验证我的应用程序,并存储 access_token refresh_token access_token 在一小时后过期,所以在这一小时内,我可以像这样获得用户信息:

  google = oauthManager.remote_app(
'google',
consumer_key ='xxxxxxxxx.apps.googleusercontent.com',
consumer_secret ='xxxxxxxxx',
request_token_params = {
'scope':['https://www.googleapis.com/auth/userinfo.email','https://www.googleapis.com/auth/gmail.readonly'],
'access_type':'offline'
},
base_url ='https://www.googleapis.com/oauth2/v1/',
request_token_url =无,
access_token_method ='POST',
access_token_url ='https://accounts.google.com/o/oauth2/token',
authorize_url ='https://accounts.google.com/o / oauth2 / auth'


token =(the_stored_access_token,'')
userinfoObj = google.get('userinfo',token = token).data
userinf oObj ['id']#打印出我的谷歌id

一旦小时结束,我需要使用refresh_token(我已经存储在我的数据库中)来请求一个新的 access_token 。我尝试用 the_stored_refresh_token 替换 the_stored_access_token ,但这只是给我一个无效的凭证 -error。



在我读了以下内容:

从这我明白,我不得不创建一个像这样的远程应用程序:
$ b $ pre $ google = oauthManager.remote_app
'google',
#也是consumer_key,secret,request_token_params等。
grant_type ='refresh_token',
refresh_token = u'1 / xK_ZIeFn9quwvk4t5VRtE2oYe5yxkRDbP9BQ99NcJ T0'

但是这会导致 TypeError:__init__ ()得到了一个意外的关键字参数refresh_token。所以从这里我有点失落。



有谁知道如何使用 refresh_token 来获得一个新的的access_token ?所有提示都是可以的!

b $ b

  from urllib2 import Request,urlopen,URLError $ b $ from webapp2_extras import json 
import mimetools
BOUNDARY = mimetools.choose_boundary()
def refresh_token()
url = google_config ['access_token_url']
headers = [
(grant_type,refresh_token),
(client_id ),
(client_secret,< client_secret>),
(refresh_token,< refresh_token>),
]

files = ]
edata = EncodeMultiPart(header,files,file_type ='text / plain')
headers = {}
request = Request(url,headers = headers)
request.add_data (edata)

request.add_header('Content-Length',str(len(edata)))
request.add_header('Content-Type','multipart / form-data; boundar y =%s'%BOUNDARY)
try:
response = urlopen(request).read()
response = json.decode(response)
除URLError外,e:
...

EncodeMultipart函数取自这里:



务必使用相同的BOUNDARY


I'm building a website + backend with the FLask Framework in which I use Flask-OAuthlib to authenticate with google. After authentication, the backend needs to regularly scan the user his Gmail. So currently users can authenticate my app and I store the access_token and the refresh_token. The access_token expires after one hour, so within that one hour I can get the userinfo like so:

google = oauthManager.remote_app(
        'google',
        consumer_key='xxxxxxxxx.apps.googleusercontent.com',
        consumer_secret='xxxxxxxxx',
        request_token_params={
            'scope': ['https://www.googleapis.com/auth/userinfo.email', 'https://www.googleapis.com/auth/gmail.readonly'],
            'access_type': 'offline'
        },
        base_url='https://www.googleapis.com/oauth2/v1/',
        request_token_url=None,
        access_token_method='POST',
        access_token_url='https://accounts.google.com/o/oauth2/token',
        authorize_url='https://accounts.google.com/o/oauth2/auth'
    )

token = (the_stored_access_token, '')
userinfoObj = google.get('userinfo', token=token).data
userinfoObj['id']  # Prints out my google id

Once the hour is over, I need to use the refresh_token (which I've got stored in my database) to request a new access_token. I tried replacing the_stored_access_token with the_stored_refresh_token, but this simply gives me an Invalid Credentials-error.

In this github issue I read the following:

From this I understood I had to create a remote app like so:

google = oauthManager.remote_app(
        'google',
        #  also the consumer_key, secret, request_token_params, etc..
        grant_type='refresh_token',
        refresh_token=u'1/xK_ZIeFn9quwvk4t5VRtE2oYe5yxkRDbP9BQ99NcJT0'
    )

But this leads to a TypeError: __init__() got an unexpected keyword argument 'refresh_token'. So from here I'm kinda lost.

Does anybody know how I can use the refresh_token to get a new access_token? All tips are welcome!

解决方案

This is how I get a new access_token for google:

from urllib2 import Request, urlopen, URLError
from webapp2_extras import json
import mimetools
BOUNDARY = mimetools.choose_boundary()
def refresh_token()
    url = google_config['access_token_url']
    headers = [
             ("grant_type", "refresh_token"),
             ("client_id", <client_id>),
             ("client_secret", <client_secret>),
             ("refresh_token", <refresh_token>),
             ]

    files = []
    edata = EncodeMultiPart(headers, files, file_type='text/plain')
    headers = {}
    request = Request(url, headers=headers)
    request.add_data(edata)

    request.add_header('Content-Length', str(len(edata)))
    request.add_header('Content-Type', 'multipart/form-data;boundary=%s' % BOUNDARY)
    try:
        response = urlopen(request).read()
        response = json.decode(response)
    except URLError, e:
        ...

EncodeMultipart function is taken from here:https://developers.google.com/cloud-print/docs/pythonCode

Be sure to use the same BOUNDARY

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08-01 16:06