def main(request, appid, signed):
fb_app = FBApp.objects.get(appid=appid)
try:
signature = oauth.handle_incoming(request, fb_app)
except oauth.AccessDenied:
signature = oauth.AccessSignature()
if not signature.is_valid():
# OAuth circumvented or denied
# Record auth fail and redirect to error URL:
# TODO: event
namespace = request.resolver_match.namespace or 'gimmick'
path = reverse(namespace + ':engage-intro') + "#denied"
if oauth.EMBEDDED_NS_PATTERN.search(namespace):
url = oauth.get_embedded_path(fb_app, path)
return render(request, 'chapo/redirect.html', {'url': url})
else:
return redirect(path)
session_key = 'engage_task_{}'.format(signature.code)
try:
task_id = request.session[session_key]
except KeyError:
oauth_token_job = store_oauth_token.s(
signature.code,
signature.redirect_uri,
api=API_VERSION,
app_id=appid,
)
scoring_job = celery.group(tasks.score_posts.s(),
tasks.score_likes.s(),
tasks.read_network.s())
if signed and 'oauth_token' in signed and 'user_id' in signed:
oauth_token_job.apply_async()
token = ShortToken(
fbid=int(signed['user_id']),
appid=appid,
token=signed['oauth_token'],
api=API_VERSION,
)
chain_start = scoring_job.clone((token,))
else:
chain_start = oauth_token_job | scoring_job
# celery won't give us a collected group ID, so post-process in a chord callback
chain = chain_start | tasks.compute_rankings.s()
task = chain.apply_async()
task_id = request.session[session_key] = task.id
return render(request, 'gimmick/engage.html', {
'fb_app': fb_app,
'task_id': task_id,
})
def incoming(request, api, campaign_id, content_id):
campaign = get_object_or_404(models.Campaign, pk=campaign_id)
properties = campaign.campaignproperties.get()
fb_app = campaign.client.fb_app
try:
signature = oauth.handle_incoming(request, fb_app)
except oauth.AccessDenied:
# OAuth denial
# Record auth fail and redirect to error URL:
url = "{}?{}".format(
reverse('targetshare:outgoing', args=[
fb_app.appid,
properties.client_error_url
]),
urllib.urlencode({'campaignid': campaign_id}),
)
db.bulk_create.delay([
models.relational.Event(
visit_id=request.visit.visit_id,
content=url[:1028],
event_type='incoming_redirect',
campaign_id=campaign_id,
client_content_id=content_id,
),
models.relational.Event(
visit_id=request.visit.visit_id,
event_type='auth_fail',
content='oauth',
campaign_id=campaign_id,
client_content_id=content_id,
),
])
return redirect(url)
if signature.is_valid():
token_task = store_oauth_token.delay(
signature.code,
signature.redirect_uri,
api,
client_id=campaign.client_id,
visit_id=request.visit.visit_id,
campaign_id=campaign_id,
content_id=content_id,
)
request.session[OAUTH_TASK_KEY] = token_task.id
# Record event and redirect to the campaign faces URL
# (with inheritance of incoming query string)
url = utils.faces_url(properties.client_faces_url,
campaign,
content_id,
signature.redirect_query)
db.delayed_save.delay(
models.relational.Event(
visit_id=request.visit.visit_id,
content=url[:1028],
event_type='incoming_redirect',
campaign_id=campaign_id,
client_content_id=content_id,
)
)
return http.HttpResponseRedirect(url)
