145 lines
7.8 KiB
Python
145 lines
7.8 KiB
Python
import struct
|
|
from twisted.internet import defer
|
|
from lbrynet.dht import constants
|
|
from lbrynet.core.utils import generate_id
|
|
from dht_test_environment import TestKademliaBase
|
|
import logging
|
|
|
|
log = logging.getLogger()
|
|
|
|
|
|
class TestStoreExpiration(TestKademliaBase):
|
|
network_size = 40
|
|
|
|
@defer.inlineCallbacks
|
|
def test_store_and_expire(self):
|
|
blob_hash = generate_id(1)
|
|
announcing_node = self.nodes[20]
|
|
# announce the blob
|
|
announce_d = announcing_node.announceHaveBlob(blob_hash)
|
|
self.pump_clock(5)
|
|
storing_node_ids = yield announce_d
|
|
all_nodes = set(self.nodes).union(set(self._seeds))
|
|
|
|
# verify the nodes we think stored it did actually store it
|
|
storing_nodes = [node for node in all_nodes if node.node_id.encode('hex') in storing_node_ids]
|
|
self.assertEqual(len(storing_nodes), len(storing_node_ids))
|
|
self.assertEqual(len(storing_nodes), constants.k)
|
|
for node in storing_nodes:
|
|
self.assertTrue(node._dataStore.hasPeersForBlob(blob_hash))
|
|
datastore_result = node._dataStore.getPeersForBlob(blob_hash)
|
|
self.assertEqual(map(lambda contact: (contact.id, contact.address, contact.port),
|
|
node._dataStore.getStoringContacts()), [(announcing_node.node_id,
|
|
announcing_node.externalIP,
|
|
announcing_node.port)])
|
|
self.assertEqual(len(datastore_result), 1)
|
|
expanded_peers = []
|
|
for peer in datastore_result:
|
|
host = ".".join([str(ord(d)) for d in peer[:4]])
|
|
port, = struct.unpack('>H', peer[4:6])
|
|
peer_node_id = peer[6:]
|
|
if (host, port, peer_node_id) not in expanded_peers:
|
|
expanded_peers.append((peer_node_id, host, port))
|
|
self.assertEqual(expanded_peers[0],
|
|
(announcing_node.node_id, announcing_node.externalIP, announcing_node.peerPort))
|
|
|
|
# verify the announced blob expires in the storing nodes datastores
|
|
|
|
self.clock.advance(constants.dataExpireTimeout) # skip the clock directly ahead
|
|
for node in storing_nodes:
|
|
self.assertFalse(node._dataStore.hasPeersForBlob(blob_hash))
|
|
datastore_result = node._dataStore.getPeersForBlob(blob_hash)
|
|
self.assertEqual(len(datastore_result), 0)
|
|
self.assertTrue(blob_hash in node._dataStore._dict) # the looping call shouldn't have removed it yet
|
|
self.assertEqual(len(node._dataStore.getStoringContacts()), 1)
|
|
|
|
self.pump_clock(constants.checkRefreshInterval + 1) # tick the clock forward (so the nodes refresh)
|
|
for node in storing_nodes:
|
|
self.assertFalse(node._dataStore.hasPeersForBlob(blob_hash))
|
|
datastore_result = node._dataStore.getPeersForBlob(blob_hash)
|
|
self.assertEqual(len(datastore_result), 0)
|
|
self.assertEqual(len(node._dataStore.getStoringContacts()), 0)
|
|
self.assertTrue(blob_hash not in node._dataStore._dict) # the looping call should have fired
|
|
|
|
@defer.inlineCallbacks
|
|
def test_storing_node_went_stale_then_came_back(self):
|
|
blob_hash = generate_id(1)
|
|
announcing_node = self.nodes[20]
|
|
# announce the blob
|
|
announce_d = announcing_node.announceHaveBlob(blob_hash)
|
|
self.pump_clock(5)
|
|
storing_node_ids = yield announce_d
|
|
all_nodes = set(self.nodes).union(set(self._seeds))
|
|
|
|
# verify the nodes we think stored it did actually store it
|
|
storing_nodes = [node for node in all_nodes if node.node_id.encode('hex') in storing_node_ids]
|
|
self.assertEqual(len(storing_nodes), len(storing_node_ids))
|
|
self.assertEqual(len(storing_nodes), constants.k)
|
|
for node in storing_nodes:
|
|
self.assertTrue(node._dataStore.hasPeersForBlob(blob_hash))
|
|
datastore_result = node._dataStore.getPeersForBlob(blob_hash)
|
|
self.assertEqual(map(lambda contact: (contact.id, contact.address, contact.port),
|
|
node._dataStore.getStoringContacts()), [(announcing_node.node_id,
|
|
announcing_node.externalIP,
|
|
announcing_node.port)])
|
|
self.assertEqual(len(datastore_result), 1)
|
|
expanded_peers = []
|
|
for peer in datastore_result:
|
|
host = ".".join([str(ord(d)) for d in peer[:4]])
|
|
port, = struct.unpack('>H', peer[4:6])
|
|
peer_node_id = peer[6:]
|
|
if (host, port, peer_node_id) not in expanded_peers:
|
|
expanded_peers.append((peer_node_id, host, port))
|
|
self.assertEqual(expanded_peers[0],
|
|
(announcing_node.node_id, announcing_node.externalIP, announcing_node.peerPort))
|
|
|
|
self.pump_clock(constants.checkRefreshInterval*2)
|
|
|
|
# stop the node
|
|
self.nodes.remove(announcing_node)
|
|
yield self.run_reactor(31, [announcing_node.stop()])
|
|
# run the network for an hour, which should expire the removed node and turn the announced value stale
|
|
self.pump_clock(constants.checkRefreshInterval * 5, constants.checkRefreshInterval/2)
|
|
self.verify_all_nodes_are_routable()
|
|
|
|
# make sure the contact isn't returned as a peer for the blob, but that we still have the entry in the
|
|
# datastore in case the node comes back
|
|
for node in storing_nodes:
|
|
self.assertFalse(node._dataStore.hasPeersForBlob(blob_hash))
|
|
datastore_result = node._dataStore.getPeersForBlob(blob_hash)
|
|
self.assertEqual(len(datastore_result), 0)
|
|
self.assertEqual(len(node._dataStore.getStoringContacts()), 1)
|
|
self.assertTrue(blob_hash in node._dataStore._dict)
|
|
|
|
# # bring the announcing node back online
|
|
self.nodes.append(announcing_node)
|
|
yield self.run_reactor(
|
|
31, [announcing_node.start([(seed_name, 4444) for seed_name in sorted(self.seed_dns.keys())])]
|
|
)
|
|
self.pump_clock(constants.checkRefreshInterval * 2)
|
|
self.verify_all_nodes_are_routable()
|
|
|
|
# now the announcing node should once again be returned as a peer for the blob
|
|
for node in storing_nodes:
|
|
self.assertTrue(node._dataStore.hasPeersForBlob(blob_hash))
|
|
datastore_result = node._dataStore.getPeersForBlob(blob_hash)
|
|
self.assertEqual(len(datastore_result), 1)
|
|
self.assertEqual(len(node._dataStore.getStoringContacts()), 1)
|
|
self.assertTrue(blob_hash in node._dataStore._dict)
|
|
|
|
# verify the announced blob expires in the storing nodes datastores
|
|
self.clock.advance(constants.dataExpireTimeout) # skip the clock directly ahead
|
|
for node in storing_nodes:
|
|
self.assertFalse(node._dataStore.hasPeersForBlob(blob_hash))
|
|
datastore_result = node._dataStore.getPeersForBlob(blob_hash)
|
|
self.assertEqual(len(datastore_result), 0)
|
|
self.assertTrue(blob_hash in node._dataStore._dict) # the looping call shouldn't have removed it yet
|
|
self.assertEqual(len(node._dataStore.getStoringContacts()), 1)
|
|
|
|
self.pump_clock(constants.checkRefreshInterval + 1) # tick the clock forward (so the nodes refresh)
|
|
for node in storing_nodes:
|
|
self.assertFalse(node._dataStore.hasPeersForBlob(blob_hash))
|
|
datastore_result = node._dataStore.getPeersForBlob(blob_hash)
|
|
self.assertEqual(len(datastore_result), 0)
|
|
self.assertEqual(len(node._dataStore.getStoringContacts()), 0)
|
|
self.assertTrue(blob_hash not in node._dataStore._dict) # the looping call should have fired
|