def canvas(request):
'''
Example of a canvas page.
Canvas pages require redirects to work using javascript instead of http headers
The facebook required and facebook required lazy decorator abstract this away
'''
context = RequestContext(request)
fb = require_persistent_graph(request)
likes = fb.get('me/likes')['data']
context['likes'] = likes
return render_to_response('greenroom.apps.django_facebook_patched/canvas.html', context)
def page_tab(request):
'''
Example of a canvas page.
Canvas pages require redirects to work using javascript instead of http headers
The facebook required and facebook required lazy decorator abstract this away
'''
context = RequestContext(request)
facebook = require_persistent_graph(request)
likes = facebook.get('me/likes')['data']
context['likes'] = likes
from user.models import FacebookPageTab
signed_request = request.REQUEST.get('signed_request')
data = facebook.prefetched_data
page_id = data['page']['id']
defaults = dict(created_by_user=data['user_id'])
tab, created = FacebookPageTab.objects.get_or_create(page_id=page_id, defaults=defaults)
context['facebook'] = facebook
raise Exception, tab
return render_to_response('greenroom.apps.django_facebook_patched/page_tab.html', context)
def connect(request):
'''
Handles the view logic around connect user
- (if authenticated) connect the user
- login
- register
'''
backend = get_registration_backend()
context = RequestContext(request)
assert context.get('FACEBOOK_APP_ID'), 'Please specify a facebook app id '\
'and ensure the context processor is enabled'
facebook_login = bool(int(request.REQUEST.get('facebook_login', 0)))
if facebook_login:
logger.info('trying to connect using facebook')
graph = require_persistent_graph(request)
if graph:
logger.info('found a graph object')
facebook = FacebookUserConverter(graph)
if facebook.is_authenticated():
logger.info('facebook is authenticated')
facebook_data = facebook.facebook_profile_data()
#either, login register or connect the user
try:
action, user = connect_user(request)
logger.info('Django facebook performed action: %s', action)
except facebook_exceptions.IncompleteProfileError, e:
#show them a registration form to add additional data
warning_format = u'Incomplete profile data encountered with error %s'
warn_message = warning_format % e.message
send_warning(warn_message, e=e,
facebook_data=facebook_data)
context['facebook_mode'] = True
context['form'] = e.form
return render_to_response(
facebook_settings.FACEBOOK_REGISTRATION_TEMPLATE,
context_instance=context,
)
if action is CONNECT_ACTIONS.CONNECT:
#connect means an existing account was attached to facebook
messages.info(request, _("You have connected your account "
"to %s's facebook profile") % facebook_data['name'])
elif action is CONNECT_ACTIONS.REGISTER:
#hook for tying in specific post registration functionality
response = backend.post_registration_redirect(request, user)
#compatability for django registration backends which return tuples instead of a response
#alternatively we could wrap django registration backends, but that would be hard to understand
response = response if isinstance(response, HttpResponse) else redirect(response)
return response
else:
if 'attempt' in request.GET:
return next_redirect(request, next_key=['error_next', 'next'],
additional_params=dict(fb_error_or_cancel=1))
else:
logger.info('Facebook authentication needed for connect, ' \
'raising an error')
raise OpenFacebookException('please authenticate')
#for CONNECT and LOGIN we simple redirect to the next page
return next_redirect(request, default=facebook_settings.FACEBOOK_LOGIN_DEFAULT_REDIRECT)
