def get_facebook_graph(
request=None,
access_token=None,
persistent_token=facebook_settings.FACEBOOK_PERSISTENT_TOKEN):
'''
given a request from one of these
- js authentication flow
- facebook app authentication flow
- mobile authentication flow
store authentication data in the session
returns a graph object
'''
if not request and persistent_token:
raise ValidationError, 'Request is required if you want to use persistent tokens'
from django_facebook import official_sdk
additional_data = None
facebook_open_graph_cached = False
if persistent_token:
facebook_open_graph_cached = request.session.get('facebook_open_graph')
if facebook_open_graph_cached:
#TODO: should handle this in class' pickle protocol, but this is easier
facebook_open_graph_cached._is_authenticated = None
if not access_token:
signed_request = request.REQUEST.get('signed_request')
cookie_name = 'fbs_%s' % facebook_settings.FACEBOOK_APP_ID
oauth_cookie = request.COOKIES.get(cookie_name)
#scenario A, we're on a canvas page and need to parse the signed data
if signed_request:
additional_data = FacebookAPI.parse_signed_data(signed_request)
access_token = additional_data.get('oauth_token')
#scenario B, we're using javascript and cookies to authenticate
elif oauth_cookie:
additional_data = official_sdk.get_user_from_cookie(
request.COOKIES, facebook_settings.FACEBOOK_APP_ID,
facebook_settings.FACEBOOK_APP_SECRET)
access_token = additional_data.get('access_token')
facebook_open_graph = FacebookAPI(access_token, additional_data)
if facebook_open_graph.access_token and persistent_token:
request.session['facebook_open_graph'] = facebook_open_graph
elif facebook_open_graph_cached:
facebook_open_graph = facebook_open_graph_cached
return facebook_open_graph
def get_facebook_graph(request=None, access_token=None, persistent_token=facebook_settings.FACEBOOK_PERSISTENT_TOKEN):
'''
given a request from one of these
- js authentication flow
- facebook app authentication flow
- mobile authentication flow
store authentication data in the session
returns a graph object
'''
if not request and persistent_token:
raise ValidationError, 'Request is required if you want to use persistent tokens'
from django_facebook import official_sdk
additional_data = None
facebook_open_graph_cached = False
if persistent_token:
facebook_open_graph_cached = request.session.get('facebook_open_graph')
if facebook_open_graph_cached:
#TODO: should handle this in class' pickle protocol, but this is easier
facebook_open_graph_cached._is_authenticated = None
if not access_token:
signed_request = request.REQUEST.get('signed_request')
cookie_name = 'fbs_%s' % facebook_settings.FACEBOOK_APP_ID
oauth_cookie = request.COOKIES.get(cookie_name)
#scenario A, we're on a canvas page and need to parse the signed data
if signed_request:
additional_data = FacebookAPI.parse_signed_data(signed_request)
access_token = additional_data.get('oauth_token')
#scenario B, we're using javascript and cookies to authenticate
elif oauth_cookie:
additional_data = official_sdk.get_user_from_cookie(request.COOKIES, facebook_settings.FACEBOOK_APP_ID, facebook_settings.FACEBOOK_APP_SECRET)
access_token = additional_data.get('access_token')
facebook_open_graph = FacebookAPI(access_token, additional_data)
if facebook_open_graph.access_token and persistent_token:
request.session['facebook_open_graph'] = facebook_open_graph
elif facebook_open_graph_cached:
facebook_open_graph = facebook_open_graph_cached
return facebook_open_graph
def get_facebook_graph(request=None, access_token=None, persistent_token=facebook_settings.FACEBOOK_PERSISTENT_TOKEN):
'''
given a request from one of these
- js authentication flow
- facebook app authentication flow
- mobile authentication flow
store authentication data in the session
returns a graph object
'''
if not request and persistent_token:
raise ValidationError, 'Request is required if you want to use persistent tokens'
from django_facebook import official_sdk
additional_data = None
facebook_open_graph_cached = False
if persistent_token:
logger.debug('Get cached facebook_open_graph ')
facebook_open_graph_cached = request.session.get('facebook_open_graph')
if facebook_open_graph_cached:
#TODO: should handle this in class' pickle protocol, but this is easier
facebook_open_graph_cached._is_authenticated = None
signed_request = request.REQUEST.get('signed_request')
cookie_name = 'fbs_%s' % facebook_settings.FACEBOOK_APP_ID
oauth_cookie = request.COOKIES.get(cookie_name)
#scenario A, we're on a canvas page and need to parse the signed data
if signed_request:
logger.debug('found signed request..')
additional_data = FacebookAPI.parse_signed_data(signed_request)
logger.debug('signed_data: '+str(additional_data))
access_token = additional_data.get('oauth_token')
#scenario B, we're using javascript and cookies to authenticate
elif oauth_cookie:
logger.debug('found oauth cookie...')
additional_data = official_sdk.get_user_from_cookie(request.COOKIES, facebook_settings.FACEBOOK_APP_ID, facebook_settings.FACEBOOK_APP_SECRET)
additional_data["user_id"] = additional_data["uid"]
logger.debug('oauth cookie: signed_data: '+str(additional_data))
access_token = additional_data.get('access_token')
facebook_open_graph = FacebookAPI(access_token, additional_data)
if facebook_open_graph.access_token and persistent_token:
logger.debug('storing facebook_open_graph in session..')
request.session['facebook_open_graph'] = facebook_open_graph
elif facebook_open_graph_cached:
logger.debug('Using cached facebook_open_graph ')
facebook_open_graph = facebook_open_graph_cached
# Check if the OAuth token has expired
if facebook_open_graph.additional_data.has_key('expires'):
if datetime.fromtimestamp(float(facebook_open_graph.additional_data['expires'])) < datetime.now():
logger.debug('FB Access token expired, revalidate!')
facebook_open_graph._is_authenticated = None
return facebook_open_graph
