def log_out(handler):
user = handler.user_obj
if user:
user.end_session()
# Empty session cookie and force it to expire.
utils.set_cookie(handler, 'session', '', datetime(1987, 7, 31, 3, 42))
def view_article(handler, id):
if isinstance(id, model.Article):
article = id
id = article.key().id()
elif isinstance(id, (int, long)):
article = None
else:
raise TypeError('Invalid article id.')
# Don't count views from certain crawler bots to avoid upping the number of
# views for non-human visits.
for user_agent in settings.IGNORED_USER_AGENTS:
if user_agent in os.environ['HTTP_USER_AGENT']:
return
# memcache key used for counting views.
views_key = 'article:%d:views' % id
cached_views = None
# Don't increment views if user has article id in cookie.
try:
cookie = handler.request.cookies['articles']
except KeyError:
cookie = ':'
if not (':%d:' % id) in cookie:
cookie += ('%d:' % id)
utils.set_cookie(handler, 'articles', cookie,
datetime.now() + timedelta(days=7))
# Id was not in cookie, increment by one if IP has not incremented
# 5 or more times before.
ip_key = 'article:%d:views:%s' % (id, os.environ['REMOTE_ADDR'])
if memcache.get(ip_key) < 5:
memcache.incr(ip_key, initial_value=0)
cached_views = memcache.incr(views_key, initial_value=0) or 0L
if cached_views is None:
cached_views = long(memcache.get(views_key) or 0L)
if article:
# Aggregate stored views with cached views.
article.views += cached_views
# Store views to entity once every 10 minutes and reset the cache
# counter.
try:
if datetime.now() - article.last_save > timedelta(minutes=10):
article.put()
memcache.delete(views_key)
# In maintenance periods, avoid throwing errors when viewing an
# article.
except apiproxy_errors.CapabilityDisabledError:
pass
def _add_user_data(handler, data):
logging.info("Getting Facebook data through Graph API.")
logging.debug(data)
graph = facebook.GraphAPI(data["access_token"])
user = graph.get_object("me")
data["uid"] = user["id"]
data["name"] = user["name"]
if "email" in user:
data["email"] = user["email"]
# This cookie uses the same structure as the one created by the
# Facebook JavaScript library.
exp = datetime.now() + timedelta(seconds=int(data["expires"]))
data["expires"] = int(time.mktime(exp.timetuple()))
payload = "".join("%s=%s" % (k, data[k]) for k in sorted(data.keys()))
sig = hashlib.md5(payload + settings.FACEBOOK_SECRET)
data["sig"] = sig.hexdigest()
utils.set_cookie(handler, "fbs_%s" % settings.FACEBOOK_APP_ID, '"%s"' % urllib.urlencode(data), exp)
def _add_user_data(handler, data):
graph = facebook.GraphAPI(data['access_token'])
user = graph.get_object('me')
data['uid'] = user['id']
data['name'] = user['name']
if 'email' in user:
data['email'] = user['email']
# This cookie uses the same structure as the one created by the
# Facebook JavaScript library.
exp = datetime.now() + timedelta(seconds=int(data['expires']))
data['expires'] = int(time.mktime(exp.timetuple()))
payload = ''.join('%s=%s' % (k, data[k]) for k in
sorted(data.keys()))
sig = hashlib.md5(payload + settings.FACEBOOK_SECRET)
data['sig'] = sig.hexdigest()
utils.set_cookie(handler,
'fbs_%s' % settings.FACEBOOK_APP_ID,
'"%s"' % urllib.urlencode(data),
exp)
def _add_user_data(handler, data):
logging.info('Getting Facebook data through Graph API.')
logging.debug(data)
graph = facebook.GraphAPI(data['access_token'])
user = graph.get_object('me')
data['uid'] = user['id']
data['name'] = user['name']
if 'email' in user:
data['email'] = user['email']
# This cookie uses the same structure as the one created by the
# Facebook JavaScript library.
exp = datetime.now() + timedelta(seconds=int(data['expires']))
data['expires'] = int(time.mktime(exp.timetuple()))
payload = ''.join('%s=%s' % (k, data[k]) for k in
sorted(data.keys()))
sig = hashlib.md5(payload + settings.FACEBOOK_SECRET)
data['sig'] = sig.hexdigest()
utils.set_cookie(handler,
'fbs_%s' % settings.FACEBOOK_APP_ID,
'"%s"' % urllib.urlencode(data),
exp)
def start_user_session(handler, user):
user.start_session()
utils.set_cookie(handler, 'session', user.session, user.expires)
