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"""
Google OpenId, OAuth2, OAuth1, Google+ Sign-in backends, docs at:
http://psa.matiasaguirre.net/docs/backends/google.html
"""
from requests import HTTPError
from social.backends.open_id import OpenIdAuth, OpenIdConnectAuth
from social.backends.oauth import BaseOAuth2, BaseOAuth1
from social.exceptions import AuthMissingParameter, AuthCanceled
class BaseGoogleAuth(object):
def get_user_id(self, details, response):
"""Use google email as unique id"""
if self.setting('USE_UNIQUE_USER_ID', False):
return response['id']
else:
return details['email']
def get_user_details(self, response):
"""Return user details from Google API account"""
if 'email' in response:
email = response['email']
elif 'emails' in response:
email = response['emails'][0]['value']
else:
email = ''
if isinstance(response.get('name'), dict):
names = response.get('name') or {}
name, given_name, family_name = (
response.get('displayName', ''),
names.get('givenName', ''),
names.get('familyName', '')
)
else:
name, given_name, family_name = (
response.get('name', ''),
response.get('given_name', ''),
response.get('family_name', '')
)
fullname, first_name, last_name = self.get_user_names(
name, given_name, family_name
)
return {'username': email.split('@', 1)[0],
'email': email,
'fullname': fullname,
'first_name': first_name,
'last_name': last_name}
class BaseGoogleOAuth2API(BaseGoogleAuth):
def get_scope(self):
"""Return list with needed access scope"""
scope = self.setting('SCOPE', [])
if not self.setting('IGNORE_DEFAULT_SCOPE', False):
default_scope = []
if self.setting('USE_DEPRECATED_API', False):
default_scope = self.DEPRECATED_DEFAULT_SCOPE
else:
default_scope = self.DEFAULT_SCOPE
scope += default_scope or []
return scope
def user_data(self, access_token, *args, **kwargs):
"""Return user data from Google API"""
if self.setting('USE_DEPRECATED_API', False):
url = 'https://www.googleapis.com/oauth2/v1/userinfo'
else:
url = 'https://www.googleapis.com/plus/v1/people/me'
return self.get_json(url, params={
'access_token': access_token,
'alt': 'json'
})
class GoogleOAuth2(BaseGoogleOAuth2API, BaseOAuth2):
"""Google OAuth2 authentication backend"""
name = 'google-oauth2'
REDIRECT_STATE = False
AUTHORIZATION_URL = 'https://accounts.google.com/o/oauth2/auth'
ACCESS_TOKEN_URL = 'https://accounts.google.com/o/oauth2/token'
ACCESS_TOKEN_METHOD = 'POST'
REVOKE_TOKEN_URL = 'https://accounts.google.com/o/oauth2/revoke'
REVOKE_TOKEN_METHOD = 'GET'
DEFAULT_SCOPE = ['email', 'profile']
DEPRECATED_DEFAULT_SCOPE = [
'https://www.googleapis.com/auth/userinfo.email',
'https://www.googleapis.com/auth/userinfo.profile'
]
EXTRA_DATA = [
('refresh_token', 'refresh_token', True),
('expires_in', 'expires'),
('token_type', 'token_type', True)
]
def revoke_token_params(self, token, uid):
return {'token': token}
def revoke_token_headers(self, token, uid):
return {'Content-type': 'application/json'}
class GooglePlusAuth(BaseGoogleOAuth2API, BaseOAuth2):
name = 'google-plus'
REDIRECT_STATE = False
STATE_PARAMETER = False
AUTHORIZATION_URL = 'https://accounts.google.com/o/oauth2/auth'
ACCESS_TOKEN_URL = 'https://accounts.google.com/o/oauth2/token'
ACCESS_TOKEN_METHOD = 'POST'
REVOKE_TOKEN_URL = 'https://accounts.google.com/o/oauth2/revoke'
REVOKE_TOKEN_METHOD = 'GET'
DEFAULT_SCOPE = [
'https://www.googleapis.com/auth/plus.login',
]
DEPRECATED_DEFAULT_SCOPE = [
'https://www.googleapis.com/auth/plus.login',
'https://www.googleapis.com/auth/userinfo.email',
'https://www.googleapis.com/auth/userinfo.profile'
]
EXTRA_DATA = [
('id', 'user_id'),
('refresh_token', 'refresh_token', True),
('expires_in', 'expires'),
('access_type', 'access_type', True),
('code', 'code')
]
def auth_complete_params(self, state=None):
params = super(GooglePlusAuth, self).auth_complete_params(state)
if self.data.get('access_token'):
# Don't add postmessage if this is plain server-side workflow
params['redirect_uri'] = 'postmessage'
return params
def auth_complete(self, *args, **kwargs):
if 'access_token' in self.data and not 'code' in self.data:
raise AuthMissingParameter(self, 'access_token or code')
# Token won't be available in plain server-side workflow
token = self.data.get('access_token')
if token:
self.process_error(self.get_json(
'https://www.googleapis.com/oauth2/v1/tokeninfo',
params={'access_token': token}
))
try:
response = self.request_access_token(
self.ACCESS_TOKEN_URL,
data=self.auth_complete_params(),
headers=self.auth_headers(),
method=self.ACCESS_TOKEN_METHOD
)
except HTTPError as err:
if err.response.status_code == 400:
raise AuthCanceled(self)
else:
raise
self.process_error(response)
return self.do_auth(response['access_token'], response=response,
*args, **kwargs)
class GoogleOAuth(BaseGoogleAuth, BaseOAuth1):
"""Google OAuth authorization mechanism"""
name = 'google-oauth'
AUTHORIZATION_URL = 'https://www.google.com/accounts/OAuthAuthorizeToken'
REQUEST_TOKEN_URL = 'https://www.google.com/accounts/OAuthGetRequestToken'
ACCESS_TOKEN_URL = 'https://www.google.com/accounts/OAuthGetAccessToken'
DEFAULT_SCOPE = ['https://www.googleapis.com/auth/userinfo#email']
def user_data(self, access_token, *args, **kwargs):
"""Return user data from Google API"""
return self.get_querystring(
'https://www.googleapis.com/userinfo/email',
auth=self.oauth_auth(access_token)
)
def get_key_and_secret(self):
"""Return Google OAuth Consumer Key and Consumer Secret pair, uses
anonymous by default, beware that this marks the application as not
registered and a security badge is displayed on authorization page.
http://code.google.com/apis/accounts/docs/OAuth_ref.html#SigningOAuth
"""
key_secret = super(GoogleOAuth, self).get_key_and_secret()
if key_secret == (None, None):
key_secret = ('anonymous', 'anonymous')
return key_secret
class GoogleOpenId(OpenIdAuth):
name = 'google'
URL = 'https://www.google.com/accounts/o8/id'
def get_user_id(self, details, response):
"""
Return user unique id provided by service. For google user email
is unique enought to flag a single user. Email comes from schema:
http://axschema.org/contact/email
"""
return details['email']
class GoogleOpenIdConnect(GoogleOAuth2, OpenIdConnectAuth):
name = 'google-openidconnect'
ID_TOKEN_ISSUER = "accounts.google.com"
def user_data(self, access_token, *args, **kwargs):
"""Return user data from Google API"""
return self.get_json(
'https://www.googleapis.com/plus/v1/people/me/openIdConnect',
params={'access_token': access_token, 'alt': 'json'}
)
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