I make the following request:
https://oauth.vk.com/authorize?redirect_uri=https%3A%2F%2Foauth.vk.com%2Fblank.html&response_type=token&client_id=5842359&v=5.63&scope=friends%2Coffline&display=page
to retrieve an access token. This url leads to a login page on vk.com (if not logged in already), then prompts a user to authorize application and then redirects to https://oauth.vk.com/blank.html#access_token={token}&expires_in=0&user_id={id}. So to actually retrieve an access token one needs to manually copy it from the address bar. This procedure is specified in the official API. Is there a way to go around this? How do I get a token using only python code?
Below is the procedure that generates the url:
import requests
def authorize_app(client_id, redirect_uri = None):
'''
The function generates an url, which redirects to login page (optional, if not logged in) and app authorization.
'''
if redirect_uri == None:
redirect_uri = 'https://oauth.vk.com/blank.html' # default callback url
oauth = requests.get('https://oauth.vk.com/authorize', params = {'client_id' : str(client_id),
'redirect_uri' : redirect_uri,
'display' : 'page',
'scope' : ['friends,offline'], # offline option makes the token permanent
'response_type' : 'token',
'v' : 5.63})
return oauth.url
You can use Authorization Code flow wherein you receive Auth_code and then use this code to retrieve access_token.
Getting auth_code and access_tokens are just POST requests to the OAuth server.
In your code response_type should be code to get the auth code and then use this code to retrieve acccess_token
Refer to this https://vk.com/dev/auth_sites. Generally, this flow is same on any OAuth provider.
Related
I'm trying to implement a simple python client for Spotify api. According to the Spotify's Authorization Guide, the app can be authorized in two ways:
App Authorization: Spotify authorizes your app to access the Spotify Platform (APIs, SDKs and Widgets).
User Authorization: Spotify, as well as the user, grant your app permission to access and/or modify the user’s own data. For information about User Authentication, see User Authentication with OAuth 2.0. Calls to the Spotify Web API require authorization by your application user. To get that authorization, your application generates a call to the Spotify Accounts Service /authorize endpoint, passing along a list of the scopes for which access permission is sought.
CLIENT CREDENTIALS
My first attempt used the app authorization using the oauth2 module from Spotipy, because it requires no token passed, but only client id and client secret, which belong to the app developer.
client.py
import spotipy
from spotipy.oauth2 import SpotifyClientCredentials
class SpotifyWrapper(spotipy.Spotify):
def category_playlists(self, category, limit=50, offset=0):
return self._get('browse/categories/%s/playlists' % category,
limit=limit,
offset=offset)
def get_api_client():
# create a client authentication request
client_cred = SpotifyClientCredentials(
client_id=DevelopmentConfig.SPOTIFY_CLIENT_ID,
client_secret=DevelopmentConfig.SPOTIFY_CLIENT_SECRET
)
# create a spotify client with a bearer token,
# dynamically re-created if necessary
return SpotifyWrapper(auth=client_cred.get_access_token())
Then I would import and declare it here:
spotify_utilities.py
from app.resources.spotify.client import get_api_client
sp = get_api_client()
And in order to make requests and get user playlists, pass it like so:
def get_user_playlist(username, sp):
ids=[]
playlists = sp.user_playlists(username)
for playlist in playlists['items']:
ids.append(playlist['id'])
print("Name: {}, Number of songs: {}, Playlist ID: {} ".
format(playlist['name'].encode('utf8'),
playlist['tracks']['total'],
playlist['id']))
return ids
This works and will get user content, where the user is the app developer.
IMPLICIT FLOW
Now I want to move on to Implicit Flow, whereby the app asks ANY user who uses for access and scopes, and for that a token will be required.
Once I fetch the token using Javascript, I know I can use it to get user data hitting the API with simple requests:
GET_USER_PROFILE_ENDPOINT = 'https://api.spotify.com/v1/users/{user_id}'
GET_USER_PLAYLISTS_ENDPOINT = 'https://api.spotify.com/v1/users/{user_id}/playlists'
def get_user_profile(token, user_id):
url = GET_USER_PROFILE_ENDPOINT.format(id=user_id)
resp = requests.get(url, headers={"Authorization": "Bearer {}".format(token)})
print (len(resp.json()))
return resp.json()
def get_user_playlists(token, user_id):
url = GET_USER_PLAYLISTS_ENDPOINT..format(id=user_id)
resp = requests.get(url, headers={"Authorization": "Bearer {}".format(token)})
print (len(resp.json()))
return resp.json()
but in order to get (and change) user data first I need to use this token to fetch user ID.
Also, by the following example form Spotipy docs, user must provide his username at terminal:
if __name__ == '__main__':
if len(sys.argv) > 1:
username = sys.argv[1]
else:
print("Whoops, need your username!")
print("usage: python user_playlists.py [username]")
sys.exit()
token = util.prompt_for_user_token(username)
if token:
sp = spotipy.Spotify(auth=token)
playlists = sp.user_playlists(username)
After reading the docs from Spotify and Spotify, some things that are still not clear:
Is it possible to get this USER ID from passing the token only?
Must the app user necessarily provide his Spotify username via a form in a browser, besides authorizing the app when authentication is prompted?
Is it possible to tweak the wrapper above and implement a client which contemplates the parameters required for implicit flow? Would simply spotify = spotipy.Spotify(auth=token) work and get current usr data?
Also, by the following example form Spotipy docs, user must provide
his username at terminal:
That's because Spotipy caches tokens on disk. When no cache path is specified by the user the username simply gets appended to the files file extension as seen here. So the username specified is never being transmitted to any Spotify API endpoint.
1) Is it possible to get this USER ID from passing the token only?
Yes, using /v1/me instead of /v1/users/{user_id} will do exactly that assuming you are using an access token generated by Authorization Code flow or Implicit Grant flow.
2) Must the app user necessarily provide his Spotify username via a
form in a browser, besides authorizing the app when authentication is
prompted?
No, as seen in the first paragraph of my answer.
3) Is it possible to tweak the wrapper above and implement a client
which contemplates the parameters required for implicit flow? Would
simply spotify = spotipy.Spotify(auth=token) work and get current usr
data?
Spotipy seems to only use Authorization Code Flow right now. Due to you said you are
trying to implement a simple python client for Spotify api.
you should just implement Implicit Grant flow in your application. This has examples for all three Spotify authorization flows.
Thank you so much in advance. I am trying to fetch user profile information through slack_authentication. Although the app is successfully authenticated with Slack, it could not get email and username.
{'ok': True, 'access_token': 'xoxp-xXXXXXXXXXXXXXXXX', 'scope': 'identify,channels:read,users.profile:read,chat:write:bot,identity.basic', 'user_id': 'XXXXXXXXX', 'team_id': 'XXXXXXXX', 'enterprise_id': None, 'team_name': 'test', 'warning': 'superfluous_charset', 'response_metadata': {'warnings': ['superfluous_charset']}}
I tried to add identify scope instead of identity.basic because slack doesn't allow you to use both identity.basic and other scopes.
The code is below:
#bp.route('/redirect', methods=['GET'])
def authorize():
authorize_url = f"https://slack.com/oauth/authorize?scope={ oauth_scope }&client_id={ client_id }"
return authorize_url
#bp.route('/callback', methods=["GET", "POST"])
def callback():
auth_code = request.args['code']
client = slack.WebClient(token="")
response = client.oauth_access(
client_id=client_id,
client_secret=client_secret,
code=auth_code
)
print(response)
Additional
I have realized how to get users info. I updated the code to like this.
The code is updated like below:
oauth = client.oauth_access(
client_id=client_id,
client_secret=client_secret,
code=auth_code
)
user_id = oauth['user_id']
response = client.users_info(user=user_id)
But this error occurs:
The server responded with: {'ok': False, 'error': 'not_authed'}
Your code looks like an installation routine for a Slack app using OAuth. But it does not contain a call to get a user profile.
To get the profile of a user you can call users.info and provide the ID of the user you are interested in.
Examples:
response = client.users_info(user=ID_OF_USER)
assert(response)
profile = response['user']['profile']
email = response['user']['profile']['email']
In order to retrieve the user's profile and email address you need these scopes:
- users:read
- users:read.email
The identity scopes are unrelated to the user profile. They are used for the "Sign-in with Slack" approach only, where you can authenticate with a Slack user on a 3rd party web site.
Finally, just to clarify, because this is often misunderstood: You only need to run through the OAuth installation routine once. The routine will yield you a token for the workspace, which you can store and use for any further calls to the API for that workspace.
Update to "Additional"
You are not using the API correctly.
You need to first complete the Oauth flow and collect the access token, which is in the response from client.oauth_access.
Then you need to initialize a new WebClient with the token you received. With the new client you can then access all API methods, like users.info etc.
Again: You should run through the OAuth process one time only and store the received token for later use.
Example:
oauth_info = client.oauth_access(
client_id=client_id,
client_secret=client_secret,
code=auth_code
)
access_token = oauth_info['access_token'] # you want to store this token in a database
client = slack.WebClient(token=access_token)
user_id = oauth_info['user_id']
response = client.users_info(user=user_id)
print(response)
I'm trying to set up a Twitter app using the Account Activity API, to replace my old set up which used the user streaming endpoint. I want to be able to get DM messages to one user sent to a particular URL in real time.
Following these migration instructions, I've set up a webhook endpoint on my site, as described here. I've checked that process is working, by making sure that when I open https://example.com/webhook_endpoint?crc_token=foo in my browser, I get a token in response.
Now I'm trying and failing to register my webhook. I'm using the following code, and getting a 403 response.
from requests_oauthlib import OAuth1Session
import urllib
CONSUMER_KEY = 'my consumer key'
CONSUMER_SECRET = 'my consumer secret'
ACCESS_TOKEN = 'my access token'
ACCESS_SECRET = 'my access secret'
twitter = OAuth1Session(CONSUMER_KEY,
client_secret=CONSUMER_SECRET,
resource_owner_key=ACCESS_TOKEN,
resource_owner_secret=ACCESS_SECRET)
webhook_endpoint = urllib.parse.quote_plus('https://example.com/webhook/')
url = 'https://api.twitter.com/1.1/account_activity/all/env-beta/'
'webhooks.json?url={}'.format(webhook_endpoint)
r = twitter.post(url)
403 response content: {"errors":[{"code":200,"message":"Forbidden."}]}
I can successfully post a status using the same session object and
r = twitter.post('https://api.twitter.com/1.1/statuses/update.json?status=Test')
What am I doing wrong here?
This turned out to be due to a combination of:
Not having created an environment here: https://developer.twitter.com/en/account/environments as described here: https://developer.twitter.com/en/docs/accounts-and-users/subscribe-account-activity/guides/getting-started-with-webhooks
using the wrong consumer secret in the function that created the token returned at the /webhook endpoint
My front end in Angular JS.
It sends me google token after user logs in with gmail
In backend I verify the token and extract information from it as below
#csrf_exempt
def check(request):
CLIENT_ID = 'xxxxx'
try:
json_data = json.loads(request.body.decode('utf-8'))
idinfo = id_token.verify_oauth2_token(json_data['google_token'], requests.Request(), CLIENT_ID)
if idinfo['iss'] not in ['accounts.google.com', 'https://accounts.google.com']:
raise ValueError('Wrong issuer.')
print("idinfo")
print(idinfo)
Now I got the user details here and want to generate an access token to access my API's for every request.
Is there any built in function from oauth2 to generate an access token.
Any suggestion that would help me. Thanks.
I'm new to Oauth. In the past for twitter applications written in Python i used python-oauth2 library to initialize client like this:
consumer = oauth.Consumer(key = CONSUMER_KEY, secret = CONSUMER_SECRET)
token = oauth.Token(key = ACCESS_KEY, secret = ACCESS_SECRET)
client = oauth.Client(consumer, token)
That was easy because twitter provides both CONSUMER and ACCESS keys and secrets. But now i need to do the same for tumblr. The problem is that tumblr provides only CONSUMER_KEY, CONSUMER_SECRET and these urls:
Request-token URL http://www.tumblr.com/oauth/request_token
Authorize URL http://www.tumblr.com/oauth/authorize
Access-token URL http://www.tumblr.com/oauth/access_token
Using this data how can i initialize client to access tumblr API?
UPD
jterrace suggested a code i tried to use before. The problem with it is oauth_callback. If i don't specify any, api returns error "No oauth_callback specified", but if i do specify some url like "http://example.com/oauthcb/" and follow the link http://www.tumblr.com/oauth/authorize?oauth_token=9ygTF..., then press Allow button, tumblr doesn't show any PIN code page, it immediately redirects to that callback url, which is useless since it's desktop application. Why PIN code isn't shown?
UPD 2
Tumblr API doesn't support PIN code authorization. Use xAuth instead - https://groups.google.com/group/tumblr-api/browse_thread/thread/857285e6a2b4268/15060607dc306c1d?lnk=gst&q=pin#15060607dc306c1d
First, import the oauth2 module and set up the service's URL and consumer information:
import oauth2
REQUEST_TOKEN_URL = 'http://www.tumblr.com/oauth/request_token'
AUTHORIZATION_URL = 'http://www.tumblr.com/oauth/authorize'
ACCESS_TOKEN_URL = 'http://www.tumblr.com/oauth/access_token'
CONSUMER_KEY = 'your_consumer_key'
CONSUMER_SECRET = 'your_consumer_secret'
consumer = oauth2.Consumer(CONSUMER_KEY, CONSUMER_SECRET)
client = oauth2.Client(consumer)
Step 1: Get a request token. This is a temporary token that is used for
having the user authorize an access token and to sign the request to obtain
said access token.
resp, content = client.request(REQUEST_TOKEN_URL, "GET")
request_token = dict(urlparse.parse_qsl(content))
print "Request Token:"
print " - oauth_token = %s" % request_token['oauth_token']
print " - oauth_token_secret = %s" % request_token['oauth_token_secret']
Step 2: Redirect to the provider. Since this is a CLI script we do not
redirect. In a web application you would redirect the user to the URL
below.
print "Go to the following link in your browser:"
print "%s?oauth_token=%s" % (AUTHORIZATION_URL, request_token['oauth_token'])
# After the user has granted access to you, the consumer, the provider will
# redirect you to whatever URL you have told them to redirect to. You can
# usually define this in the oauth_callback argument as well.
oauth_verifier = raw_input('What is the PIN? ')
Step 3: Once the consumer has redirected the user back to the oauth_callback
URL you can request the access token the user has approved. You use the
request token to sign this request. After this is done you throw away the
request token and use the access token returned. You should store this
access token somewhere safe, like a database, for future use.
token = oauth2.Token(request_token['oauth_token'], request_token['oauth_token_secret'])
token.set_verifier(oauth_verifier)
client = oauth2.Client(consumer, token)
resp, content = client.request(ACCESS_TOKEN_URL, "POST")
access_token = dict(urlparse.parse_qsl(content))
print "Access Token:"
print " - oauth_token = %s" % access_token['oauth_token']
print " - oauth_token_secret = %s" % access_token['oauth_token_secret']
print
Now that you have an access token, you can call protected methods with it.
EDIT: Turns out that tumblr does not support the PIN authorization method. Relevant post here.
If you just want to gain an access-token/secret to sign, you could just setup your callback URL as: http://localhost/blah
Fireup the CLI-app (after modifying the callback-url, secret and token ofcourse)
Follow the link in your browser
Allow app
View addressbar of the page you've been redirected to in the browser after allowing your app. It should look something like:
http://localhost/blah?oauth_token=xxxxxxxxxxxxxxxxxxxxxxxxxx0123456789ABCDEFGHIJKLMN&oauth_verifier=XXXXXXXXXXXXXXXXXXXXXXXXX0123456789abcdefghijklmn
Use the value of the query-parameter 'oauth_verifier' as your PIN:
XXXXXXXXXXXXXXXXXXXXXXXXX0123456789abcdefghijklmn
The CLI should print out your oauth-token and oauth-token-secret.
HTH! Got this working for tumblr in this way :)
Have a look at https://github.com/ToQoz/Pyblr
It uses oauth2 and urllib to provide a nice wrapper for exactly what you're trying to do.
It seems that what you're trying to do is access an OAuth 1 API with an OAuth 2 client.
See https://github.com/simplegeo/python-oauth2 and look for “three-legged OAuth example”.
had this problem with oauth2 and facebook.
#deepvanbinnen's answer lead me into the right direction.
facebook actually redirected to a page similar to this
'http://localhost/blah?code=AQAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX#_=_'
using then the ' AQAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX#_=_ as the PIN actually got me the access to the requested facebook account.
#jterrance's answer is good. However, realize it is a one _time_ manual procedure to get the access token. The access token is the key that you use for all subsequent API calls. (That's why he recommends saving the access token in a database.) The string referred to as 'PIN' (aka the verification key) is not necessarily a number. It can be a printable string in any form. That verification key is displayed on the authorization page at the URL printed in step 2 then pasted into the prompt for a the 'PIN'.