def gandalf(bridge_name):
if not bridge_name:
raise Exception("Must include 'bridge_name' parameter")
gandalf_cache = GandalfCache.get()
bridge = gandalf_cache.get_bridge_model(bridge_name)
if not bridge:
logging.error("User tried to cross bridge '%s', which does not exist" % bridge_name)
return False
filters = gandalf_cache.get_filter_models(bridge_name)
identity = current_logged_in_identity()
# Currently do not support users with no identity
if not identity:
return False
# A user needs to pass a single whitelist, and pass no blacklists, to pass a bridge
passes_a_whitelist = False
for filter in filters:
if filter.whitelist:
if filter.filter_class.passes_filter(filter, identity):
passes_a_whitelist = True
else:
if filter.filter_class.passes_filter(filter, identity):
return False
return passes_a_whitelist
def gandalf(bridge_name):
if not bridge_name:
raise Exception("Must include 'bridge_name' parameter")
gandalf_cache = GandalfCache.get()
with gandalf_cache.get_lock():
# Lock while getting models because they are built lazily and
# so might modify the cache object.
bridge = gandalf_cache.get_bridge_model(bridge_name)
if not bridge:
if not App.is_dev_server:
logging.error("User tried to cross non-existent bridge '%s'" %
bridge_name)
return False
filters = gandalf_cache.get_filter_models(bridge_name)
identity = current_logged_in_identity()
# A user needs to pass a single whitelist, and pass no blacklists,
# to pass a bridge
passes_a_whitelist = False
for filter in filters:
if filter.whitelist:
if filter.filter_class.passes_filter(filter, identity):
passes_a_whitelist = True
else:
if filter.filter_class.passes_filter(filter, identity):
return False
return passes_a_whitelist
def delete(self, **kwargs):
super(GandalfFilter, self).delete(**kwargs)
from gandalf.cache import GandalfCache
GandalfCache.delete_from_memcache()
def put(self, **kwargs):
super(GandalfFilter, self).put(**kwargs)
db.get(self.key()) # Force-commit, needed for high-replication store
from gandalf.cache import GandalfCache
GandalfCache.delete_from_memcache()
def put(self, **kwargs):
super(GandalfBridge, self).put(**kwargs)
# TODO(csilvers): any reason not to move this to the top of the file?
from gandalf.cache import GandalfCache
GandalfCache.delete_from_memcache()
def put(self, **kwargs):
from gandalf.cache import GandalfCache
super(GandalfFilter, self).put(**kwargs)
GandalfCache.delete_from_memcache()
def put(self, **kwargs):
super(GandalfBridge, self).put(**kwargs)
from gandalf.cache import GandalfCache
GandalfCache.delete_from_memcache()
def put(self, **kwargs):
from gandalf.cache import GandalfCache
super(GandalfFilter, self).put(**kwargs)
GandalfCache.delete_from_memcache()
def put(self, **kwargs):
super(GandalfBridge, self).put(**kwargs)
from gandalf.cache import GandalfCache
GandalfCache.delete_from_memcache()
