def process_request(self, request):
app_requests = []
if request.GET.get("request_ids", None):
fb = FBSession(request)
request_ids = request.GET.get("request_ids").split(",")
logger.debug("Got app request ids: %s" % request_ids)
for id in request_ids:
r = Request(id=id)
if settings.DEBUG:
try:
r.save()
except IntegrityError:
pass
app_requests.append(r)
fb.app_requests = app_requests
fb.modified("AppRequestMiddleware")
def process_request(self, request):
"""
Writes the signed_request into the Session
"""
fb = FBSession(request)
application = get_app_dict()
if "feincms" in settings.INSTALLED_APPS:
# if feincms is installed, try to get the application from the page
from facebook.feincms.utils import get_application_from_request
page_app = get_application_from_request(request)
if application:
application = get_app_dict(page_app)
# default POST/GET request from facebook with a signed request
if "signed_request" in request.POST:
parsed_request = parseSignedRequest(request.POST["signed_request"], application["SECRET"])
logger.debug(u"got signed_request from facebook: %s" % parsed_request)
if "language" in parsed_request:
language = parsed_request["user"]["locale"]
logger.debug("language: %s" % language)
request.LANGUAGE_CODE = language
translation.activate(language)
fb.signed_request = parsed_request
logger.debug("stored signed_request")
expires = None
# rewrite important data
if "oauth_token" in parsed_request:
expires = datetime.fromtimestamp(float(parsed_request["expires"]))
fb.store_token(parsed_request["oauth_token"], expires)
elif "access_token" in parsed_request:
expires = datetime.fromtimestamp(float(parsed_request["expires"]))
fb.store_token(parsed_request["access_token"], expires)
else:
# The chance is good that there is already a valid token in the session.
fb.store_token(None)
if "user_id" in parsed_request:
fb.user_id = parsed_request["user_id"]
else:
logger.debug("Signed Request didn't contain public user info.")
if expires:
logger.debug(
"Signed Request issued at: %s" % datetime.fromtimestamp(float(parsed_request["issued_at"]))
)
# auth via callback from facebook
elif "code" in request.REQUEST:
args = dict(
client_id=application["id"],
client_secret=application["secret"],
code=request.REQUEST["code"],
redirect_uri=request.build_absolute_uri()
.split("?")[0]
.replace(application["CANVAS-URL"], application["CANVAS-PAGE"]),
)
response = urllib.urlopen("https://graph.facebook.com/oauth/access_token?" + urllib.urlencode(args))
raw = response.read()
parsed = urlparse.parse_qs(raw) # Python 2.6 parse_qs is now part of the urlparse module
if parsed.get("access_token", None):
expires = datetime.fromtimestamp(float(parsed["expires"][-1]))
fb.store_token(parsed["access_token"][-1], expires)
logger.debug("Got access token from callback: %s. Expires at %s" % (parsed, expires))
else:
logger.debug("facebook did not respond an accesstoken: %s" % raw)
