def authenticate(self, graph=None):
if not graph:
raise AttributeError, 'Authentication Backend needs a valid graph.'
# check if the access token is valid:
try:
me = graph.request('me')
except facebook.GraphAPIError as e:
logger.debug('Could not authenticate User: %s ' % e)
return None
try:
facebook_user = FacebookUser.objects.get(id=int(me['id']))
except FacebookUser.DoesNotExist:
facebook_user = FacebookUser(id=int(me['id']))
facebook_user.get_from_facebook(graph=graph, save=True)
else:
try:
if isinstance(facebook_user.user, User) and facebook_user.user.is_authenticated():
return facebook_user.user
except User.DoesNotExist:
pass
#we use the Facebook id as username because 'me.name' is not unique enough.
user = get_or_create_user(me['id'], {
'email': me.get('email', u''),
'first_name': me.get('first_name', u''),
'last_name': me.get('last_name', u''),
'password': UNUSABLE_PASSWORD,
'date_joined': datetime.now()
} )
facebook_user.user = user
facebook_user.save()
return user
def connect(request, redirect_field_name=REDIRECT_FIELD_NAME, app_name=None):
""" Connects the Facebook Account to the current logged-in user. """
fb_app = get_app_dict(app_name)
graph = get_graph(request, app_name=app_name)
redirect_to = request.REQUEST.get(redirect_field_name,
fb_app['REDIRECT-URL'])
if request.user.is_authenticated():
try:
me = graph.get_object("me")
except facebook.GraphAPIError as e:
return redirect('fb_login')
# if the user has already a facebook connection, abort and show
# error message
if hasattr(request.user, 'user'):
logger.debug('The logged in user is already connected.')
# check if the django user and FB user match:
if graph.user_id <> request.user.user.id:
logger.debug(
'User %s already connected with Facebook account %s' %
(request.user.get_full_name, request.user.user._name))
auth_views.logout(request, next_page=reverse('fb_app'))
# Otherwise redirect
return redirect(redirect_to)
else:
# The User has no Facebook account attached. Connect him.
try:
# if that facebook user already exists, abort and show error message
fb_user = FacebookUser.objects.get(id=graph.user_id)
except FacebookUser.DoesNotExist:
fb_user = FacebookUser(id=graph.user_id)
fb_user.get_from_facebook(graph=graph, save=True)
else:
if isinstance(fb_user.user, User):
auth_views.logout(request, next_page=reverse('fb_login'))
else:
fb_user.user = request.user
fb_user.save()
finally:
return redirect(redirect_to)
else:
# The user is not logged in
# -> redirect to login page
return redirect('fb_login')
def connect(request, redirect_field_name=REDIRECT_FIELD_NAME, app_name=None):
""" Connects the Facebook Account to the current logged-in user. """
fb_app = get_app_dict(app_name)
graph = get_graph(request, app_name=app_name)
redirect_to = request.REQUEST.get(redirect_field_name, fb_app['REDIRECT-URL'])
if request.user.is_authenticated():
try:
me = graph.get_object("me")
except facebook.GraphAPIError as e:
return redirect('fb_login')
# if the user has already a facebook connection, abort and show
# error message
if hasattr(request.user, 'user'):
logger.debug('The logged in user is already connected.')
# check if the django user and FB user match:
if graph.user_id <> request.user.user.id:
logger.debug('User %s already connected with Facebook account %s' % (request.user.get_full_name, request.user.user._name))
auth_views.logout(request, next_page=reverse('fb_app'))
# Otherwise redirect
return redirect(redirect_to)
else:
# The User has no Facebook account attached. Connect him.
try:
# if that facebook user already exists, abort and show error message
fb_user = FacebookUser.objects.get(id=graph.user_id)
except FacebookUser.DoesNotExist:
fb_user = FacebookUser(id=graph.user_id)
fb_user.get_from_facebook(graph=graph, save=True)
else:
if isinstance(fb_user.user, User):
auth_views.logout(request, next_page=reverse('fb_login'))
else:
fb_user.user = request.user
fb_user.save()
finally:
return redirect(redirect_to)
else:
# The user is not logged in
# -> redirect to login page
return redirect('fb_login')
def authenticate(self, graph=None):
if not graph:
raise AttributeError, 'Authentication Backend needs a valid graph.'
# check if the access token is valid:
try:
me = graph.request('me')
except facebook.GraphAPIError as e:
logger.debug('Could not authenticate User: %s ' % e)
return None
try:
facebook_user = FacebookUser.objects.get(id=int(me['id']))
except FacebookUser.DoesNotExist:
facebook_user = FacebookUser(id=int(me['id']))
facebook_user.get_from_facebook(graph=graph, save=True)
else:
try:
if isinstance(facebook_user.user,
User) and facebook_user.user.is_authenticated():
return facebook_user.user
except User.DoesNotExist:
pass
#we use the Facebook id as username because 'me.name' is not unique enough.
user = get_or_create_user(
me['id'], {
'email': me.get('email', u''),
'first_name': me.get('first_name', u''),
'last_name': me.get('last_name', u''),
'password': UNUSABLE_PASSWORD,
'date_joined': datetime.now()
})
facebook_user.user = user
facebook_user.save()
return user
