def __init__(self):
self.handles = OOBTree()
self.nonces = OITreeSet()
self.associations = OOBTree()
self.noncetimeline = BList()
self.assoctimeline = BList()
class ZopeStore(OpenIDStore):
"""Zope OpenID store.
This class implements an OpenID store which uses the ZODB."""
def __init__(self):
self.handles = OOBTree()
self.nonces = OITreeSet()
self.associations = OOBTree()
self.noncetimeline = BList()
self.assoctimeline = BList()
def getAssociationKey(self, server_url, handle):
"""Generate a key used to identify an association in our storage."""
if handle is None:
return self.handles[server_url][0]
return (server_url, handle)
def storeAssociation(self, server_url, association):
key = self.getAssociationKey(server_url, association.handle)
self.associations[key] = association.serialize()
now = time.time()
def getKey(item):
return self.getAssociation(item[0], item[1], remove=False).getExpiresIn(now)
lst = self.handles.get(server_url, [])
lst.append(key)
lst.sort(key=getKey)
self.handles[server_url] = lst
self.assoctimeline.append((association.issued + association.lifetime, key))
def getAssociation(self, server_url, handle=None, remove=True):
try:
key = self.getAssociationKey(server_url, handle)
assoc = Association.deserialize(self.associations[key])
except KeyError:
return None
if remove and assoc.getExpiresIn() == 0:
self.removeAssociation(server_url, handle)
return None
return assoc
def removeAssociation(self, server_url, handle):
key = self.getAssociationKey(server_url, handle)
try:
assoc = Association.deserialize(self.associations[key])
del self.associations[key]
lst = self.handles[server_url]
lst.remove(key)
self.handles[server_url] = lst
self.assoctimeline.remove((assoc.issued + assoc.lifetime, key))
return True
except KeyError:
return False
def useNonce(self, server_url, timestamp, salt):
nonce = (salt, server_url)
if nonce in self.nonces:
return False
self.nonces.insert(nonce)
self.noncetimeline.append((timestamp, nonce))
return True
def cleanupNonces(self):
cutoff = time.time() + SKEW
count = 0
for (timestamp, nonce) in self.noncetimeline:
if timestamp < cutoff:
self.noncetimeline.remove((timestamp, nonce))
self.nonces.remove(nonce)
count += 1
return count
def cleanupAssociations(self):
now = time.time()
count = 0
expired = (key for (timestamp, key) in self.assoctimeline if timestamp <= now)
for key in expired:
self.removeAssociation(*key)
count += 1
return count
