def test_register(self):
return 'currently this doesnt work reliably with the live facebook api'
#setup the test user
permissions = facebook_settings.FACEBOOK_DEFAULT_SCOPE
app_access_token = FacebookAuthorization.get_cached_app_access_token()
test_user = FacebookAuthorization.get_or_create_test_user(app_access_token, permissions)
#test the connect view in the registration mode (empty db)
c = Client()
url = reverse('facebook_connect')
access_token = test_user.access_token
response = c.get(url, {'facebook_login': '******', 'access_token': access_token})
self.assertEqual(response.status_code, 302)
user = User.objects.all().order_by('-id')[:1][0]
profile = user.get_profile()
self.assertEqual(access_token, profile.access_token)
#test the login flow
response = c.get(url, {'facebook_login': '******', 'access_token': access_token})
self.assertEqual(response.status_code, 302)
new_user = User.objects.all().order_by('-id')[:1][0]
new_profile = user.get_profile()
self.assertEqual(access_token, new_profile.access_token)
self.assertEqual(user, new_user)
def test_register(self):
return 'currently this doesnt work reliably with the live facebook api'
#setup the test user
permissions = facebook_settings.FACEBOOK_DEFAULT_SCOPE
app_access_token = FacebookAuthorization.get_cached_app_access_token()
test_user = FacebookAuthorization.get_or_create_test_user(
app_access_token, permissions)
#test the connect view in the registration mode (empty db)
c = Client()
url = reverse('facebook_connect')
access_token = test_user.access_token
response = c.get(url, {
'facebook_login': '******',
'access_token': access_token
})
self.assertEqual(response.status_code, 302)
user = User.objects.all().order_by('-id')[:1][0]
profile = user.get_profile()
self.assertEqual(access_token, profile.access_token)
#test the login flow
response = c.get(url, {
'facebook_login': '******',
'access_token': access_token
})
self.assertEqual(response.status_code, 302)
new_user = User.objects.all().order_by('-id')[:1][0]
new_profile = user.get_profile()
self.assertEqual(access_token, new_profile.access_token)
self.assertEqual(user, new_user)
def test_extend_token(self):
return 'this doesnt work in travis, but locally its fine... weird'
app_access_token = FacebookAuthorization.get_cached_app_access_token()
test_user = FacebookAuthorization.get_or_create_test_user(app_access_token)
access_token = test_user.access_token
results = FacebookAuthorization.extend_access_token(access_token)
if 'access_token' not in results:
raise ValueError('we didnt get a fresh token')
def test_extend_token(self):
return 'this doesnt work in travis, but locally its fine... weird'
app_access_token = FacebookAuthorization.get_cached_app_access_token()
test_user = FacebookAuthorization.get_or_create_test_user(
app_access_token)
access_token = test_user.access_token
results = FacebookAuthorization.extend_access_token(access_token)
if 'access_token' not in results:
raise ValueError('we didnt get a fresh token')
def fb_test_user(request):
token = FacebookAuthorization.get_app_access_token()
test_user = FacebookAuthorization.create_test_user(token, 'email')
django_facebook.connect.connect_user(request, test_user['access_token'])
#add bids by default
member = request.user
member.bids_left = 1000
member.tokens_left = 1000
member.save()
return HttpResponseRedirect(reverse('bidding_home'))
def test_create_test_user(self):
#Also, somehow unittest.skip doesnt work with travis ci?
return 'Skipping since you might have created test users manually, lets not delete them :)'
#start by clearing out our test users (maybe this isnt safe to use in testing)
#if other people create test users manualy this could be annoying
app_access_token = FacebookAuthorization.get_cached_app_access_token()
FacebookAuthorization.delete_test_users(app_access_token)
#the permissions for which we want a test user
permissions = ['email', 'publish_actions']
#gets the test user object
test_user = FacebookAuthorization.get_or_create_test_user(app_access_token, permissions)
graph = test_user.graph()
me = graph.me()
assert me
def test_create_test_user(self):
# Also, somehow unittest.skip doesnt work with travis ci?
return 'Skipping since you might have created test users manually, lets not delete them :)'
# start by clearing out our test users (maybe this isnt safe to use in testing)
# if other people create test users manualy this could be annoying
app_access_token = FacebookAuthorization.get_cached_app_access_token()
FacebookAuthorization.delete_test_users(app_access_token)
# the permissions for which we want a test user
permissions = ['email', 'publish_actions']
# gets the test user object
test_user = FacebookAuthorization.get_or_create_test_user(
app_access_token, permissions)
graph = test_user.graph()
me = graph.me()
assert me
def get_signed_request(request):
"""
Función utilitaria que descifra y recoge el request firmado que Facebook
entrega en algunos escenarios.
.. note::
Requiere la instalación del módulo` ``django_facebook``.
:param request: Una instancia de ``django.request``.
:return: TODO
"""
try:
if request.session.get('signed_request', None) \
and request.method.upper() != 'POST':
sgr = request.session['signed_request']
else:
if not 'signed_request' in request.POST:
sgr = request.session['signed_request']
else:
sgr = request.POST.get('signed_request')
request.session['signed_request'] = sgr
result = FacebookAuthorization.parse_signed_data(sgr)
# }
return result
except Exception as e:
# print e
return None
def _extend_access_token(self, access_token):
from open_facebook.api import FacebookAuthorization
results = FacebookAuthorization.extend_access_token(access_token)
access_token = results['access_token']
self.access_token = access_token
self.save()
return results
def _extend_access_token(self, access_token):
from open_facebook.api import FacebookAuthorization
results = FacebookAuthorization.extend_access_token(access_token)
access_token, expires = results['access_token'], results['expires']
self.access_token = access_token
self.save()
return results
def obj_create(self, bundle, request=None, **kwargs):
bundle.obj = Obj()
bundle.obj.id = 1
code = bundle.data.get('code')
redirect_uri = bundle.data.get('redirectUri', '')
if not code:
self.create_response(
bundle.request, bundle,
response_class=BadRequest('code is required'))
logger.error('code is required')
# TODO: Add catch errors
token_response = FacebookAuthorization.convert_code(
code, redirect_uri=redirect_uri)
# TODO: Add access_token to cache
access_token = token_response['access_token']
action, user = connect_user(bundle.request, access_token=access_token)
from events.tasks import store_fb_events, refresh_fb_events
store_fb_events.delay(user)
refresh_fb_events.delay(user)
payload = jwt_payload_handler(user)
payload['access_token'] = user.access_token
bundle.obj.token = jwt_encode_handler(payload)
# TODO: clean up response
return bundle
def parse_signed_request(signed_request_string):
'''
Just here for your convenience, actual logic is in the
FacebookAuthorization class
'''
from open_facebook.api import FacebookAuthorization
signed_request = FacebookAuthorization.parse_signed_data(
signed_request_string)
return signed_request
def deauthorized_callback(request):
""" View for handling the deauthorization callback.
"""
if FacebookAuthorization.parse_signed_data(request.POST['signed_request']):
user_id = json.load(request.POST['user_id'])
member = get_object_or_404(Member, user_id)
member.delete()
request.session.flush()
def extend_access_tokens():
for user in UserEx.objects.filter(facebook_id__isnull=False):
results = FacebookAuthorization.extend_access_token(user.access_token)
access_token = results['access_token']
old_token = user.access_token
token_changed = access_token != old_token
if token_changed:
user.access_token = access_token
user.new_token_required = False
user.save()
def extend_access_tokens():
for user in UserEx.objects.filter(facebook_id__isnull=False):
results = FacebookAuthorization.extend_access_token(user.access_token)
access_token = results['access_token']
old_token = user.access_token
token_changed = access_token != old_token
if token_changed:
user.access_token = access_token
user.new_token_required = False
user.save()
def handle_existing_user(self, provider, user, access, info):
"""Here we store the access token for the facebook page that we got from facebook."""
if len(Token.objects.all()) < 5:
fb = OpenFacebook(access.access_token.split("=")[1])
me = fb.get('me/accounts')
for page in me['data']:
if 'Roseniuskyrkan' in page.values():
token = FacebookAuthorization.extend_access_token(page['access_token'])['access_token']
Token.objects.create(token = token)
return super(LoginCallback, self).handle_existing_user(provider, user, access, info)
def setupFBUpdates(request):
graph = get_facebook_graph(request)
#get app's access token
access_token = FacebookAuthorization.get_app_access_token()
params = {'access_token': access_token}
postdata = {'object': 'user', 'fields': "friends,music,books,movies,tv,likes", 'callback_url':"http://www.popcore.me/realtime/receive_fb_updates", 'verify_token':VERIFY_TOKEN }
url = '%s%s?%s' % ("https://graph.facebook.com/", FACEBOOK_APP_ID + "/subscriptions", urllib.urlencode(params))
res= graph._request(url, post_data=postdata)
#now check the new update configuration
#import pprint
response = graph._request(url)
return HttpResponse(pprint.pformat(response))
def test_users(request):
'''
Create test users for facebook
'''
if not request.user.is_staff:
raise Http404("access denied")
context = RequestContext(request)
if request.POST:
from open_facebook.api import FacebookAuthorization
token = FacebookAuthorization.get_app_access_token()
fb_response = ''
if request.POST.get('create_user', None):
name = request.POST.get('user_name', None)
app_access = request.POST.get('app_access', None)
if app_access == 'on':
app_access = True
else:
app_access = False
fb_response = FacebookAuthorization.create_test_user(token, name=name, app_access=app_access)
if request.POST.get('get_users', None):
fb_response = FacebookAuthorization.get_test_users(token)
test_users = []
if len(fb_response) > 0:
test_users = fb_response
context['test_users'] = test_users
# test_users = FacebookTestUser.objects.filter(app_access_token=token)
if request.POST.get('delete_user', None):
user_id = request.POST.get('delete_user_id', None)
fb_response = FacebookAuthorization.delete_test_user(token, user_id)
context['fb_response'] = fb_response
return render_to_response('django_facebook/test_users.html', context)
def _extend_access_token(self, access_token):
from open_facebook.api import FacebookAuthorization
results = FacebookAuthorization.extend_access_token(access_token)
access_token, expires = results['access_token'], int(results['expires'])
new_token = access_token != self.access_token
message = 'a new' if new_token else 'the same'
log_format = 'Facebook provided %s token, which expires at %s'
expires_delta = datetime.timedelta(seconds=expires)
logger.info(log_format, message, expires_delta)
if new_token:
logger.info('Saving the new access token')
self.access_token = access_token
self.save()
return results
def setupFBUpdates(request):
graph = get_facebook_graph(request)
#get app's access token
access_token = FacebookAuthorization.get_app_access_token()
params = {'access_token': access_token}
postdata = {
'object': 'user',
'fields': "friends,music,books,movies,tv,likes",
'callback_url': "http://www.popcore.me/realtime/receive_fb_updates",
'verify_token': VERIFY_TOKEN
}
url = '%s%s?%s' % ("https://graph.facebook.com/", FACEBOOK_APP_ID +
"/subscriptions", urllib.urlencode(params))
res = graph._request(url, post_data=postdata)
#now check the new update configuration
#import pprint
response = graph._request(url)
return HttpResponse(pprint.pformat(response))
def _extend_access_token(self, access_token):
from open_facebook.api import FacebookAuthorization
results = FacebookAuthorization.extend_access_token(access_token)
access_token, expires = results["access_token"], int(results["expires"])
old_token = self.access_token
token_changed = access_token != old_token
message = "a new" if token_changed else "the same"
log_format = "Facebook provided %s token, which expires at %s"
expires_delta = datetime.timedelta(seconds=expires)
logger.info(log_format, message, expires_delta)
if token_changed:
logger.info("Saving the new access token")
self.access_token = access_token
self.save()
from django_facebook.signals import facebook_token_extend_finished
facebook_token_extend_finished.send(sender=self, profile=self, token_changed=token_changed, old_token=old_token)
return results
def _extend_access_token(self, access_token):
from open_facebook.api import FacebookAuthorization
results = FacebookAuthorization.extend_access_token(access_token)
access_token = results['access_token']
old_token = self.access_token
token_changed = access_token != old_token
message = 'a new' if token_changed else 'the same'
log_format = 'Facebook provided %s token, which expires at %s'
expires_delta = datetime.timedelta(days=60)
logger.info(log_format, message, expires_delta)
if token_changed:
logger.info('Saving the new access token')
self.access_token = access_token
self.save()
from django_facebook.signals import facebook_token_extend_finished
facebook_token_extend_finished.send(sender=self, profile=self,
token_changed=token_changed, old_token=old_token
)
return results
def _extend_access_token(self, access_token):
from open_facebook.api import FacebookAuthorization
results = FacebookAuthorization.extend_access_token(access_token)
access_token = results['access_token']
old_token = self.access_token
token_changed = access_token != old_token
message = 'a new' if token_changed else 'the same'
log_format = 'Facebook provided %s token, which expires at %s'
expires_delta = timedelta(days=60)
logger.info(log_format, message, expires_delta)
if token_changed:
logger.info('Saving the new access token')
self.access_token = access_token
self.save()
from django_facebook.signals import facebook_token_extend_finished
facebook_token_extend_finished.send(sender=self, profile=self,
token_changed=token_changed, old_token=old_token
)
return results
def registered_facebook(request):
try:
publisher = Publisher.objects.get(user=request.user)
except:
return HttpResponseRedirect('/sorry')
try:
token = request.POST.get('access_token')
long_access_token = FacebookAuthorization.extend_access_token(token)['access_token']
print 'long is generated'
except:
long_access_token = token
print long_access_token
try:
graph = OpenFacebook(long_access_token)
profile = graph.get('me')
profile_id = profile['id']
friends = graph.get('me/friends')
total_follower = int(friends['summary']['total_count'])
except Exception as e:
return HttpResponse(e)
try:
#control every account just one once
if not len(Social_Data.objects.filter(publisher=publisher, account_type=0)) == 0:
social_network = Social_Data.objects.get(publisher=publisher, account_type=0)
social_network.account_id = profile_id
social_network.account_token = long_access_token
social_network.total_follower = total_follower
else:
social_network = Social_Data(publisher=publisher, account_type=0, account_id=profile_id, account_token=long_access_token, total_follower=total_follower)
social_network.save()
return HttpResponse(True, content_type='application/json')
except Exception as e:
return HttpResponse(e, content_type='application/json')
def process_request(self, request):
"""
This middleware authenticates the facebook user when
he/she is accessing the app from facebook (not an internal page)
The flow is show below:
if referer is facebook:
it's a canvas app and the first hit on the app
If error:
attempt to reauthenticate using authorization dialog
if signed_request not sent or does not have the user_id and the access_token:
user has not authorized app
redirect to authorization dialog
else:
check permissions
if user is authenticated (in django):
check if current facebook user is the same that is authenticated
if not: logout authenticated user
if user is not authenticated:
connect_user (django_facebook.connect module)
changed method to GET. Facebook always sends a POST first.
else:
It's an internal page.
No signed_request is sent.
Return
"""
logger.info("PR01 process_request in django-facebook middleware")
# This call cannot be global'ized or Django will return an empty response
# after the first one
redirect_login_oauth = ScriptRedirect(redirect_to=generate_oauth_url(), show_body=False)
# check referer to see if this is the first access
# or it's part of navigation in app
# facebook always sends a POST reuqest
referer = request.META.get("HTTP_REFERER", None)
if referer:
logger.info("PR02 referrer %s" % referer)
urlparsed = urlparse(referer)
is_facebook = urlparsed.netloc.endswith("facebook.com")
# facebook redirect
if is_facebook and urlparsed.path.endswith("/l.php"):
logger.info("PR03 is_facebook = True")
return
if not is_facebook:
logger.info("PR04 is_facebook = False")
return
# when there is an error, we attempt to allow user to
# reauthenticate
if "error" in request.GET:
logger.info("PR05 errors in request.GET")
return redirect_login_oauth
else:
logger.info("PR06 no referrer")
return
# get signed_request
signed_request = request.POST.get("signed_request", None)
try:
# get signed_request
parsed_signed_request = FacebookAuthorization.parse_signed_data(signed_request)
access_token = parsed_signed_request["oauth_token"]
facebook_id = long(parsed_signed_request["user_id"])
logger.info("PR07 facebook_id = %s" % facebook_id)
except:
logger.info("PR08 app is not authorized by user")
# redirect to authorization dialog
# if app not authorized by user
return redirect_login_oauth
# check for permissions
try:
graph = self.check_permissions(access_token)
logger.info("PR09 got graph")
except MissingPermissionsError:
logger.info("PR010 no graph")
return redirect_login_oauth
# check if user authenticated and if it's the same
if request.user.is_authenticated():
logger.info("PR11 use is authenticated, user_id = %s" % request.user.id)
if not self.check_django_facebook_user(request, facebook_id, access_token):
logger.info("PR12 check django facebook user failed")
return
request.facebook = graph
if not request.user.is_authenticated():
logger.info("PR13 user is not authenticated")
_action, _user = connect_user(request, access_token, graph)
# override http method, since this actually is a GET
if request.method == "POST":
logger.info("PR14 overwrite POST to GET")
request.method = "GET"
return
def process_request(self, request):
"""Process requests for Facebook apps. This is expecially
useful for canvas apps, since it handles signed_request logins,
application requests, etc.
Information about the current interaction status with Facebook
is stored into ``request.fb_info`` as a dict with following
keys:
- ``is_canvas`` - Whether we are running inside canvas or not.
This is determined by the presence of a signed request
via POST.
- ``is_signed_request`` - Whether we received a signed request,
either via POST parameter (canvas) or cookie (js sdk method).
- ``signed_request_type`` - ``"post"`` or ``"cookie"``
- ``app_request_ids`` - If a ``request_ids`` GET was passed,
the IDs of requests to be processed.
- ``is_authenticated`` - Whether we have a valid access_token
for this user, or not.
- Validate signed requests from Facebook
- Login when running in canvas
- For the deauthorize_callback ping
- Process the requests execution when a request_ids parameter
is passed -> redirect to somewhere
- We should also prevent CSRF code to be checked if the request
is using ``signed_request``.
.. NOTE::
This middleware should go before CsrfMiddleware in order
to skip CSRF validation for POSTs inside canvas apps,
in case a valid signed_request was received.
"""
logger.debug("Running FacebookRequest Middleware")
request.fb_info = {
"is_canvas": False,
"is_signed_request": None,
"signed_request_type": None,
"app_request_ids": None,
"is_authenticated": None,
}
## Set ``request.csrf_processing_done = True`` to skip CSRF checking for signed_request
## Check signed request
_sr_from = None
_sr_data = None
if request.POST.has_key('signed_request'):
logger.debug("Got a signed_request via POST")
_sr_from = 'post'
_sr_data = request.POST['signed_request']
elif request.GET.has_key('signed_request'):
logger.debug("Got a signed_request via GET -- strange, but valid..")
_sr_from = 'get'
_sr_data = request.GET['signed_request']
else:
pass
# Disabled as this would generate _sr_data for every image,
# css, etc
"""
cookie_name = 'fbsr_%s' % facebook_settings.FACEBOOK_APP_ID
cookie_data = request.COOKIES.get(cookie_name)
if cookie_data:
logger.debug("Got a signed_request via cookie")
_sr_from = 'cookie'
_sr_data = cookie_data
"""
if _sr_data:
parsed_data = FacebookAuthorization.parse_signed_data(_sr_data)
if parsed_data:
if _sr_from in ('post', 'get'):
request.fb_info['is_canvas'] = True
request.fb_info['is_signed_request'] = True
request.fb_info['signed_request_type'] = _sr_from
request.fb_info['signed_request_data'] = parsed_data
## Skip CSRF validation in case of valid signed request
request.csrf_processing_done = True
## Login the user
user = authenticate(facebook_id=parsed_data['user_id'])
if user and (not request.user.is_authenticated() or request.user != user):
# If the FB user is registered with the app and isn't logged in-
login(request, user)
## --- Application requests --------------------------------------------
if request.REQUEST.has_key('request_ids'):
request.fb_info['app_request_ids'] = request.REQUEST['request_ids'].split(',')
return###===================================== STOP HERE ===============
## TODO: Check whether we are running inside canvas
## - if we have a signed_request, we are inside canvas
## TODO: If we have a valid authentication from signed request, do that
## TODO: If we received arguments from a completed OAuth process, handle that
## TODO: We should skip CSRF checking for signed requests inside canvas
## TODO: If we received ``request_ids``, store them somewhere
access_token = _get_access_token_from_request(request)
if not access_token:
request.fb_info['is_authenticated'] = False
else:
request.fb_info['is_authenticated'] = True
fb = get_facebook_graph(request, access_token)
pass
def process_request(self, request):
"""
check if referer is facebook. If yes, this is the canvas page:
if not return.
if yes:
1) look for error. if error=permission denied -> redirect to permission. if other error: check what it can be
2) get signed_request and parse it.
3) if user_id and access_token not it parsed data -> redirect to permission page
4) check permissions
5) user:
a) if user is authenticated: check if it's the same
b) user is not authenticated: connect
"""
#check referer to see if this is the first access
#or it's part of navigation in app
#facebook always sends a POST reuqest
referer = request.META.get('HTTP_REFERER', None)
if referer:
urlparsed = urlparse(referer)
if not urlparsed.netloc.endswith('facebook.com'):
return
#when there is an error, we attempt to allow user to reauthenticate
if 'error' in request.GET:
return redirect_login_oauth
else:
return
#get signed_request
signed_request = request.POST.get('signed_request', None)
#not sure if this can happen, but better check anyway
if not signed_request:
return redirect_login_oauth
#get signed_request and redirect to authorization dialog if app not authorized by user
parsed_signed_request = FacebookAuthorization.parse_signed_data(
signed_request)
if 'user_id' not in parsed_signed_request or 'oauth_token' not in parsed_signed_request:
return redirect_login_oauth
access_token = parsed_signed_request['oauth_token']
facebook_id = long(parsed_signed_request['user_id'])
#check for permissions
graph = OpenFacebook(access_token)
permissions = set(graph.permissions())
scope_list = set(settings.FACEBOOK_DEFAULT_SCOPE)
if scope_list - permissions:
return redirect_login_oauth
#check if user authenticated and if it's the same
if request.user.is_authenticated():
try:
current_user = request.user.get_profile()
except:
current_facebook_id = None
else:
current_facebook_id = current_user.facebook_id
if not current_facebook_id or current_facebook_id != facebook_id:
logout(request)
#clear possible caches
if hasattr(request, 'facebook'):
del request.facebook
if request.session.get('graph', None):
del request.session['graph']
else:
#save last access_token to make sure we always have the most recent one
current_user.access_token = access_token
current_user.save()
request.facebook = graph
if not request.user.is_authenticated():
_action, _user = connect_user(request, access_token, graph)
#override http method, since this actually is a GET
if request.method == 'POST':
request.method = 'GET'
return
# -*- coding: utf-8 -*-
import requests
from django.conf import settings
settings.configure()
from django_facebook import settings as facebook_settings
from open_facebook import OpenFacebook
from open_facebook.api import FacebookAuthorization
import json
facebook_settings.FACEBOOK_APP_ID ='611406969009887'
facebook_settings.FACEBOOK_APP_SECRET ='6be22272c73f9a90f8ded333fbb0ff4d'
access_token=FacebookAuthorization.get_app_access_token()
graph=OpenFacebook(access_token)
fb_name='HongKongPoliceForce'
target=graph.get(fb_name)
fields='reactions.limit(100){id,name,type},comments.limit(100){id,name}'
id=target['id']
print id
posts=graph.get(id+'/posts',limit=100,fields=fields,version='v2.6')
def getUrl(url):
if '\\' in url:
url=eval('u'+"'"+url+"'")
url=url.replace('\\','')
return url
def fb_oauth(request):
"""View to process the OAuth login via Facebook.
This view accepts a GET argument "next" to specify the page where
to go upon successful OAuth authentication.
This defaults to '/' in order to prevent infinite redirects.
"""
if request.GET.get('next'):
request.session['facebook_oauth_next'] = request.GET['next']
if not request.session['facebook_oauth_next']:
request.session['facebook_oauth_next'] = '/'
next_url = request.session['facebook_oauth_next']
oauth_code = request.GET.get('code') or None
redirect_uri = reversed("django_facebook.views.fb_oauth")
error_info = {
'error': request.GET.get('error') or None,
'error_reason': request.GET.get('error_reason') or None,
'error_description': request.GET.get('error_description') or None,
}
if error_info['error']:
if error_info['error_reason'] == 'user_denied':
messages.warning(request,
"You must click on the 'Authorize' button in order to log in with Facebook!")
else:
messages.error(request,
"An error occurred while trying to authenticate on Facebook: %s (%s)" \
% (error_info['error_reason'], error_info['error_description']))
return HttpResponseRedirect(next_url)
if not oauth_code:
## Start redirecting to the OAuth dialog..
import uuid, hashlib
## CSRF prevention
_state = str(hashlib.md5(uuid.uuid1()).hexdigest())
request.session['facebook_oauth_state'] = _state
qd = QueryDict('', True)
qd['client_id'] = settings.FACEBOOK_APP_ID
qd['redirect_uri'] = redirect_uri
qd['state'] = _state
dialog_url = "https://www.facebook.com/dialog/oauth?%s" % qd.urlencode()
return CanvasRedirect(dialog_url) # Is this needed?? - what about HttpResponseRedirect .. ?
else:
## We got an OAuth code
if request.REQUEST.get('state') == request.session['facebook_oauth_state']:
result = FacebookAuthorization.convert_code(code=oauth_code, redirect_uri=redirect_uri)
access_token = result['access_token']
request.session['facebook_access_token'] = access_token
## TODO : Trigger a signal here to allow user registration etc.
## TODO: Redirect somewhere else..
return HttpResponseRedirect(next_url)
else:
raise HttpResponseNotAllowed("State doesn't match - you might be victim of CSRF")
#https://www.facebook.com/dialog/oauth?
#client_id=YOUR_APP_ID&redirect_uri=YOUR_URL
#&scope=...
#http://YOUR_URL?error_reason=user_denied&
#error=access_denied&error_description=The+user+denied+your+request.
#https://graph.facebook.com/oauth/access_token?
# client_id=YOUR_APP_ID&redirect_uri=YOUR_URL&
# client_secret=YOUR_APP_SECRET&code=THE_CODE_FROM_ABOVE
pass
def get_facebook_graph(request=None, access_token=None, redirect_uri=None, raise_=False):
'''
given a request from one of these
- js authentication flow (signed cookie)
- facebook app authentication flow (signed cookie)
- facebook oauth redirect (code param in url)
- mobile authentication flow (direct access_token)
- offline access token stored in user profile
returns a graph object
redirect path is the path from which you requested the token
for some reason facebook needs exactly this uri when converting the code
to a token
falls back to the current page without code in the request params
specify redirect_uri if you are not posting and recieving the code
on the same page
'''
# this is not a production flow, but very handy for testing
if not access_token and request.REQUEST.get('access_token'):
access_token = request.REQUEST['access_token']
# should drop query params be included in the open facebook api,
# maybe, weird this...
from open_facebook import OpenFacebook, FacebookAuthorization
from django.core.cache import cache
expires = None
if hasattr(request, 'facebook') and request.facebook:
graph = request.facebook
_add_current_user_id(graph, request.user)
return graph
# parse the signed request if we have it
signed_data = None
if request:
signed_request_string = request.REQUEST.get('signed_data')
if signed_request_string:
logger.info('Got signed data from facebook')
signed_data = parse_signed_request(signed_request_string)
if signed_data:
logger.info('We were able to parse the signed data')
# the easy case, we have an access token in the signed data
if signed_data and 'oauth_token' in signed_data:
access_token = signed_data['oauth_token']
if not access_token:
# easy case, code is in the get
code = request.REQUEST.get('code')
if code:
logger.info('Got code from the request data')
if not code:
# signed request or cookie leading, base 64 decoding needed
cookie_name = 'fbsr_%s' % facebook_settings.FACEBOOK_APP_ID
cookie_data = request.COOKIES.get(cookie_name)
if cookie_data:
signed_request_string = cookie_data
if signed_request_string:
logger.info('Got signed data from cookie')
signed_data = parse_signed_request(signed_request_string)
if signed_data:
logger.info('Parsed the cookie data')
# the javascript api assumes a redirect uri of ''
redirect_uri = ''
if signed_data:
# parsed data can fail because of signing issues
if 'oauth_token' in signed_data:
logger.info('Got access_token from parsed data')
# we already have an active access token in the data
access_token = signed_data['oauth_token']
else:
logger.info('Got code from parsed data')
# no access token, need to use this code to get one
code = signed_data.get('code', None)
if not access_token:
import hashlib
if code:
cache_key = 'convert_code_%d' % int(hashlib.md5(code).hexdigest(), 16)
logger.info(pprint.pformat(cache)+cache_key)
access_token = cache.get(cache_key)
if not access_token:
# exchange the code for an access token
# based on the php api
# https://github.com/facebook/php-sdk/blob/master/src/base_facebook.php
# create a default for the redirect_uri
# when using the javascript sdk the default
# should be '' an empty string
# for other pages it should be the url
if not redirect_uri:
redirect_uri = ''
# we need to drop signed_data, code and state
redirect_uri = cleanup_oauth_url(redirect_uri)
try:
logger.info(
'trying to convert the code with redirect uri: %s',
redirect_uri)
# This is realy slow, that's why it's cached
token_response = FacebookAuthorization.convert_code(
code, redirect_uri=redirect_uri)
expires = token_response.get('expires')
access_token = token_response['access_token']
# would use cookies instead, but django's cookie setting
# is a bit of a mess
cache.set(cache_key, access_token, 60 * 60 * 2)
except open_facebook_exceptions.OAuthException, e:
# this sometimes fails, but it shouldnt raise because
# it happens when users remove your
# permissions and then try to reauthenticate
logger.warn('Error when trying to convert code %s',
unicode(e))
if raise_:
raise
else:
return None
elif request.user.is_authenticated():
# support for offline access tokens stored in the users profile
profile = request.user.get_profile()
access_token = getattr(profile, 'access_token', None)
if not access_token:
if raise_:
message = 'Couldnt find an access token in the request or the users profile'
raise open_facebook_exceptions.OAuthException(message)
else:
return None
else:
if raise_:
message = 'Couldnt find an access token in the request or cookies'
raise open_facebook_exceptions.OAuthException(message)
else:
return None
def get_facebook_friends(request):
app_access_token = FacebookAuthorization.get_cached_app_access_token()
graph = get_persistent_graph(request, access_token=app_access_token)
converter = FacebookUserConverter(graph)
friends_uids = ','.join([str(f['uid']) for f in converter.get_friends()])
return graph.fql('SELECT name, username, pic_square, pic FROM user WHERE uid IN (%s)' % friends_uids)
def process_request(self, request):
"""
check if referer is facebook. If yes, this is the canvas page:
if not return.
if yes:
1) look for error. if error=permission denied -> redirect to permission. if other error: check what it can be
2) get signed_request and parse it.
3) if user_id and access_token not it parsed data -> redirect to permission page
4) check permissions
5) user:
a) if user is authenticated: check if it's the same
b) user is not authenticated: connect
"""
#check referer to see if this is the first access
#or it's part of navigation in app
#facebook always sends a POST reuqest
referer = request.META.get('HTTP_REFERER', None)
if referer:
urlparsed = urlparse(referer)
if not urlparsed.netloc.endswith('facebook.com'):
return
#when there is an error, we attempt to allow user to reauthenticate
if 'error' in request.GET:
return redirect_login_oauth
else:
return
#get signed_request
signed_request = request.POST.get('signed_request', None)
#not sure if this can happen, but better check anyway
if not signed_request:
return redirect_login_oauth
#get signed_request and redirect to authorization dialog if app not authorized by user
parsed_signed_request = FacebookAuthorization.parse_signed_data(
signed_request)
if 'user_id' not in parsed_signed_request or 'oauth_token' not in parsed_signed_request:
return redirect_login_oauth
access_token = parsed_signed_request['oauth_token']
facebook_id = long(parsed_signed_request['user_id'])
#check for permissions
graph = OpenFacebook(access_token)
permissions = set(graph.permissions())
scope_list = set(settings.FACEBOOK_DEFAULT_SCOPE)
if scope_list - permissions:
return redirect_login_oauth
#check if user authenticated and if it's the same
if request.user.is_authenticated():
try:
current_user = request.user.get_profile()
except:
current_facebook_id = None
else:
current_facebook_id = current_user.facebook_id
if not current_facebook_id or current_facebook_id != facebook_id:
logout(request)
#clear possible caches
if hasattr(request, 'facebook'):
del request.facebook
if request.session.get('graph', None):
del request.session['graph']
else:
#save last access_token to make sure we always have the most recent one
current_user.access_token = access_token
current_user.save()
request.facebook = graph
if not request.user.is_authenticated():
_action, _user = connect_user(request, access_token, graph)
#override http method, since this actually is a GET
if request.method == 'POST':
request.method = 'GET'
return
def get_facebook_graph(request=None,
access_token=None,
redirect_uri=None,
raise_=False):
'''
given a request from one of these
- js authentication flow (signed cookie)
- facebook app authentication flow (signed cookie)
- facebook oauth redirect (code param in url)
- mobile authentication flow (direct access_token)
- offline access token stored in user profile
returns a graph object
redirect path is the path from which you requested the token
for some reason facebook needs exactly this uri when converting the code
to a token
falls back to the current page without code in the request params
specify redirect_uri if you are not posting and recieving the code
on the same page
'''
# this is not a production flow, but very handy for testing
if not access_token and request.REQUEST.get('access_token'):
access_token = request.REQUEST['access_token']
# should drop query params be included in the open facebook api,
# maybe, weird this...
from open_facebook import OpenFacebook, FacebookAuthorization
from django.core.cache import cache
expires = None
if hasattr(request, 'facebook') and request.facebook:
graph = request.facebook
_add_current_user_id(graph, request.user)
return graph
# parse the signed request if we have it
signed_data = None
if request:
signed_request_string = request.REQUEST.get('signed_data')
if signed_request_string:
logger.info('Got signed data from facebook')
signed_data = parse_signed_request(signed_request_string)
if signed_data:
logger.info('We were able to parse the signed data')
# the easy case, we have an access token in the signed data
if signed_data and 'oauth_token' in signed_data:
access_token = signed_data['oauth_token']
if not access_token:
# easy case, code is in the get
code = request.REQUEST.get('code')
if code:
logger.info('Got code from the request data')
if not code:
# signed request or cookie leading, base 64 decoding needed
cookie_name = 'fbsr_%s' % facebook_settings.FACEBOOK_APP_ID
cookie_data = request.COOKIES.get(cookie_name)
if cookie_data:
signed_request_string = cookie_data
if signed_request_string:
logger.info('Got signed data from cookie')
signed_data = parse_signed_request(signed_request_string)
if signed_data:
logger.info('Parsed the cookie data')
# the javascript api assumes a redirect uri of ''
redirect_uri = ''
if signed_data:
# parsed data can fail because of signing issues
if 'oauth_token' in signed_data:
logger.info('Got access_token from parsed data')
# we already have an active access token in the data
access_token = signed_data['oauth_token']
else:
logger.info('Got code from parsed data')
# no access token, need to use this code to get one
code = signed_data.get('code', None)
if not access_token:
import hashlib
if code:
cache_key = 'convert_code_%d' % int(
hashlib.md5(code).hexdigest(), 16)
logger.info(pprint.pformat(cache) + cache_key)
access_token = cache.get(cache_key)
if not access_token:
# exchange the code for an access token
# based on the php api
# https://github.com/facebook/php-sdk/blob/master/src/base_facebook.php
# create a default for the redirect_uri
# when using the javascript sdk the default
# should be '' an empty string
# for other pages it should be the url
if not redirect_uri:
redirect_uri = ''
# we need to drop signed_data, code and state
redirect_uri = cleanup_oauth_url(redirect_uri)
try:
logger.info(
'trying to convert the code with redirect uri: %s',
redirect_uri)
# This is realy slow, that's why it's cached
token_response = FacebookAuthorization.convert_code(
code, redirect_uri=redirect_uri)
expires = token_response.get('expires')
access_token = token_response['access_token']
# would use cookies instead, but django's cookie setting
# is a bit of a mess
cache.set(cache_key, access_token, 60 * 60 * 2)
except open_facebook_exceptions.OAuthException, e:
# this sometimes fails, but it shouldnt raise because
# it happens when users remove your
# permissions and then try to reauthenticate
logger.warn('Error when trying to convert code %s',
unicode(e))
if raise_:
raise
else:
return None
elif request.user.is_authenticated():
# support for offline access tokens stored in the users profile
profile = request.user.get_profile()
access_token = getattr(profile, 'access_token', None)
if not access_token:
if raise_:
message = 'Couldnt find an access token in the request or the users profile'
raise open_facebook_exceptions.OAuthException(message)
else:
return None
else:
if raise_:
message = 'Couldnt find an access token in the request or cookies'
raise open_facebook_exceptions.OAuthException(message)
else:
return None
def canvashome(request):
redirectTo = request.session.get('redirect_to', False)
if redirectTo:
del request.session['redirect_to']
return HttpResponseRedirect(str(redirectTo))
member = None
fb_url = settings.FACEBOOK_APP_URL #.format(appname=settings.FACEBOOK_APP_NAME)
share_title = ConfigKey.get('SHARE_APP_TITLE', 'iBidGames')
share_description = ConfigKey.get(
'SHARE_APP_DESC',
'iBidGames is the first true online Interactive Auction, is the only interactive auction game within Facebook framework that allows players to win real items'
)
if not request.user.is_authenticated():
if not request.GET.get('facebook_login', None) and not request.GET.get(
'code', None):
return render_response(request, 'login.html')
else:
if not request.GET.get('code', None):
return redirect(generate_oauth_url())
access_token = FacebookAuthorization.convert_code(
request.GET.get('code', None), fb_url)['access_token']
#Here the user dont came from facebook. The dj-middleware redirects to this poin without authentication
data = {
'authorization_url': fb_url,
'app_url': fb_url,
'site_url': settings.SITE_NAME,
'share_title': share_title,
'share_description': share_description,
}
_action, _user = connect_user(request, access_token)
return render_response(request, 'fb_redirect.html', data)
#else:
# social_auth_user = UserSocialAuth.objects.filter(provider='google-oauth2').filter(user_id=request.user.id)
# if social_auth_user.count() > 0:
# social_auth_user = social_auth_user[0]
# data = get_data(social_auth_user.uid,social_auth_user.extra_data['access_token'])
# google_profile = Google_profile.objects.filter(user_id=social_auth_user.user_id)
# if google_profile.count() ==0:
# google_profile = Google_profile.objects.create(
# user_id= social_auth_user.user_id,
# profile_url = data['url'],
# profile_picture_url = data['image']['url'],
# displayName = data['displayName'],
# email = data['emails'][0]['value'],
# gender =data['gender']
# )
# member=Member.objects.get(id=social_auth_user.user_id)
# member.bids_left = 0
# member.tokens_left = 2000
# member.save()
# client.update_tokens(member)
# else:
# google_profile = google_profile[0]
# profile_picture_url = data['image']['url']
# google_profile.save()
if not member:
member = Member.objects.get(id=request.user.id)
#give free tokens from promo
freeExtraTokens = request.session.get('freeExtraTokens', 0)
if freeExtraTokens and not member.getSession('freeExtraTokens', None):
member.tokens_left += freeExtraTokens
member.setSession('freeExtraTokens', 'used')
member.save()
del request.session['freeExtraTokens']
display_popup = False
if not member.getSession('revisited'):
display_popup = True
member.setSession('revisited', True)
try:
auction_type = request.GET['auction_type']
except Exception:
auction_type = 'token'
response = render_response(
request, 'bidding/mainpage.html', {
'FACEBOOK_APP_URL':
settings.FACEBOOK_APP_URL.format(
appname=settings.FACEBOOK_APP_NAME),
'SITE_NAME_WOUT_BACKSLASH':
settings.SITE_NAME_WOUT_BACKSLASH,
'display_popup':
display_popup,
'facebook_user_id':
member.facebook_id,
'tosintro':
FlatPage.objects.filter(title="tacintro")[0].content,
'member':
member,
'auction_type':
auction_type,
'app_url':
fb_url,
'site_url':
settings.SITE_NAME,
'share_title':
share_title,
'share_description':
share_description,
'inCanvas':
False
})
return response
def process_request(self, request):
"""
This middleware authenticates the facebook user when
he/she is accessing the app from facebook (not an internal page)
The flow is show below:
if referer is facebook:
it's a canvas app and the first hit on the app
If error:
attempt to reauthenticate using authorization dialog
if signed_request not sent or does not have the user_id and the access_token:
user has not authorized app
redirect to authorization dialog
else:
check permissions
if user is authenticated (in django):
check if current facebook user is the same that is authenticated
if not: logout authenticated user
if user is not authenticated:
connect_user (django_facebook.connect module)
changed method to GET. Facebook always sends a POST first.
else:
It's an internal page.
No signed_request is sent.
Return
"""
# This call cannot be global'ized or Django will return an empty response
# after the first one
redirect_login_oauth = ScriptRedirect(redirect_to=generate_oauth_url(),
show_body=False)
# check referer to see if this is the first access
# or it's part of navigation in app
# facebook always sends a POST reuqest
referer = request.META.get('HTTP_REFERER', None)
if referer:
urlparsed = urlparse(referer)
is_facebook = urlparsed.netloc.endswith('facebook.com')
# facebook redirect
if is_facebook and urlparsed.path.endswith('/l.php'):
return
if not is_facebook:
return
# when there is an error, we attempt to allow user to
# reauthenticate
if 'error' in request.GET:
return redirect_login_oauth
else:
return
# get signed_request
signed_request = request.POST.get('signed_request', None)
try:
# get signed_request
parsed_signed_request = FacebookAuthorization.parse_signed_data(
signed_request)
access_token = parsed_signed_request['oauth_token']
facebook_id = long(parsed_signed_request['user_id'])
except:
# redirect to authorization dialog
# if app not authorized by user
return redirect_login_oauth
# check for permissions
try:
graph = self.check_permissions(access_token)
except MissingPermissionsError:
return redirect_login_oauth
# check if user authenticated and if it's the same
if request.user.is_authenticated():
self.check_django_facebook_user(request, facebook_id, access_token)
request.facebook = graph
if not request.user.is_authenticated():
_action, _user = connect_user(request, access_token, graph)
# override http method, since this actually is a GET
if request.method == 'POST':
request.method = 'GET'
return
def process_request(self, request):
"""
This middleware authenticates the facebook user when
he/she is accessing the app from facebook (not an internal page)
The flow is show below:
if referer is facebook:
it's a canvas app and the first hit on the app
If error:
attempt to reauthenticate using authorization dialog
if signed_request not sent or does not have the user_id and the access_token:
user has not authorized app
redirect to authorization dialog
else:
check permissions
if user is authenticated (in django):
check if current facebook user is the same that is authenticated
if not: logout authenticated user
if user is not authenticated:
connect_user (django_facebook.connect module)
changed method to GET. Facebook always sends a POST first.
else:
It's an internal page.
No signed_request is sent.
Return
"""
# This call cannot be global'ized or Django will return an empty response
# after the first one
redirect_login_oauth = ScriptRedirect(redirect_to=generate_oauth_url(),
show_body=False)
# check referer to see if this is the first access
# or it's part of navigation in app
# facebook always sends a POST reuqest
referer = request.META.get('HTTP_REFERER', None)
if referer:
urlparsed = urlparse(referer)
if not urlparsed.netloc.endswith('facebook.com'):
return
# when there is an error, we attempt to allow user to
# reauthenticate
if 'error' in request.GET:
return redirect_login_oauth
else:
return
# get signed_request
signed_request = request.POST.get('signed_request', None)
try:
# get signed_request
parsed_signed_request = FacebookAuthorization.parse_signed_data(
signed_request)
access_token = parsed_signed_request['oauth_token']
facebook_id = int(parsed_signed_request['user_id'])
except:
# redirect to authorization dialog
# if app not authorized by user
return redirect_login_oauth
# check for permissions
try:
graph = self.check_permissions(access_token)
except MissingPermissionsError:
return redirect_login_oauth
# check if user authenticated and if it's the same
if request.user.is_authenticated():
self.check_django_facebook_user(request, facebook_id, access_token)
request.facebook = graph
if not request.user.is_authenticated():
_action, _user = connect_user(request, access_token, graph)
# override http method, since this actually is a GET
if request.method == 'POST':
request.method = 'GET'
return
def get_users_fb_email(request):
app_access_token = FacebookAuthorization.get_cached_app_access_token()
graph = get_persistent_graph(request, access_token=app_access_token)
return graph.me()['email']