self.store = DB(os.path.join(cache_dir, 'khashmir.' + str(self.port) + '.db'))
self.node = self._loadSelfNode('', self.port)
self.table = KTable(self.node, config)
+ self.token_secrets = [newID()]
#self.app = service.Application("krpc")
self.udp = krpc.hostbroker(self, config)
self.udp.protocol = krpc.KRPC
return self._Node(id, host, port)
def checkpoint(self, auto=0):
+ self.token_secrets.insert(0, newID())
+ if len(self.token_secrets) > 3:
+ self.token_secrets.pop()
self.store.saveSelfNode(self.node.id)
self.store.dumpRoutingTable(self.table.buckets)
self.refreshTable()
self.insertNode(n, contacted=0)
nodes = self.table.findNodes(target)
nodes = map(lambda node: node.contactInfo(), nodes)
- return {"nodes" : nodes, "id" : self.node.id}
+ token = sha(self.token_secrets[0] + _krpc_sender[0]).digest()
+ return {"nodes" : nodes, "token" : token, "id" : self.node.id}
## This class provides read-only access to the DHT, valueForKey
self.findNode(key, _storeValueForKey)
#### Remote Interface - called by remote nodes
- def krpc_store_value(self, key, value, id, _krpc_sender):
+ def krpc_store_value(self, key, value, token, id, _krpc_sender):
n = self.Node(id, _krpc_sender[0], _krpc_sender[1])
self.insertNode(n, contacted=0)
- self.store.storeValue(key, value)
+ for secret in self.token_secrets:
+ this_token = sha(secret + _krpc_sender[0]).digest()
+ if token == this_token:
+ self.store.storeValue(key, value)
+ break;
return {"id" : self.node.id}
# the whole shebang, for testing
timeout = 10
DHT_DEFAULTS = {'PORT': 9977, 'K': 8, 'HASH_LENGTH': 160,
- 'CHECKPOINT_INTERVAL': 900, 'CONCURRENT_REQS': 4,
+ 'CHECKPOINT_INTERVAL': 300, 'CONCURRENT_REQS': 4,
'STORE_REDUNDANCY': 3, 'MAX_FAILURES': 3,
'MIN_PING_INTERVAL': 900,'BUCKET_STALENESS': 3600,
'KEINITIAL_DELAY': 15, 'KE_DELAY': 1200,
timeout = 30
num = 20
DHT_DEFAULTS = {'PORT': 9977, 'K': 8, 'HASH_LENGTH': 160,
- 'CHECKPOINT_INTERVAL': 900, 'CONCURRENT_REQS': 4,
+ 'CHECKPOINT_INTERVAL': 300, 'CONCURRENT_REQS': 4,
'STORE_REDUNDANCY': 3, 'MAX_FAILURES': 3,
'MIN_PING_INTERVAL': 900,'BUCKET_STALENESS': 3600,
'KEINITIAL_DELAY': 15, 'KE_DELAY': 1200,