def test_invalid_same_peer_id2(self):
# we connect nodes 1-2 and 1-3. Nodes 2 and 3 have the same peer_id. The connections
# are established simultaneously, so we do not detect a peer id duplication in PEER_ID
# state, only on READY state
manager3 = self.create_peer(self.network, peer_id=self.peer_id2)
conn = FakeConnection(manager3, self.manager1)
# HELLO
self.assertEqual(self.conn.peek_tr1_value().split()[0], b'HELLO')
self.assertEqual(self.conn.peek_tr2_value().split()[0], b'HELLO')
self.assertEqual(conn.peek_tr1_value().split()[0], b'HELLO')
self.assertEqual(conn.peek_tr2_value().split()[0], b'HELLO')
self.conn.run_one_step()
conn.run_one_step()
# PEER-ID
self.assertEqual(self.conn.peek_tr1_value().split()[0], b'PEER-ID')
self.assertEqual(self.conn.peek_tr2_value().split()[0], b'PEER-ID')
self.assertEqual(conn.peek_tr1_value().split()[0], b'PEER-ID')
self.assertEqual(conn.peek_tr2_value().split()[0], b'PEER-ID')
self.conn.run_one_step()
conn.run_one_step()
# READY
self.assertEqual(self.conn.peek_tr1_value().split()[0], b'READY')
self.assertEqual(self.conn.peek_tr2_value().split()[0], b'READY')
self.assertEqual(conn.peek_tr1_value().split()[0], b'READY')
self.assertEqual(conn.peek_tr2_value().split()[0], b'READY')
self.conn.run_one_step()
conn.run_one_step()
# continue until messages stop
self.conn.run_until_complete()
conn.run_until_complete()
self.run_to_completion()
# one of the peers will close the connection. We don't know which on, as it depends
# on the peer ids
conn1_value = self.conn.peek_tr1_value() + self.conn.peek_tr2_value()
if b'ERROR' in conn1_value:
conn_dead = self.conn
conn_alive = conn
else:
conn_dead = conn
conn_alive = self.conn
self._check_result_only_cmd(
conn_dead.peek_tr1_value() + conn_dead.peek_tr2_value(), b'ERROR')
# at this point, the connection must be closing as the error was detected on READY state
self.assertIn(
True, [conn_dead.tr1.disconnecting, conn_dead.tr2.disconnecting])
# check connected_peers
connected_peers = list(
self.manager1.connections.connected_peers.values())
self.assertEquals(1, len(connected_peers))
self.assertIn(connected_peers[0],
[conn_alive.proto1, conn_alive.proto2])
# connection is still up
self.assertIsConnected(conn_alive)
class HathorProtocolTestCase(unittest.TestCase):
def setUp(self):
super().setUp()
self.network = 'testnet'
self.peer_id1 = PeerId()
self.peer_id2 = PeerId()
self.manager1 = self.create_peer(self.network, peer_id=self.peer_id1)
self.manager2 = self.create_peer(self.network, peer_id=self.peer_id2)
self.conn = FakeConnection(self.manager1, self.manager2)
def assertIsConnected(self, conn=None):
if conn is None:
conn = self.conn
self.assertFalse(conn.tr1.disconnecting)
self.assertFalse(conn.tr2.disconnecting)
def _send_cmd(self, proto, cmd, payload=None):
if not payload:
line = '{}\r\n'.format(cmd)
else:
line = '{} {}\r\n'.format(cmd, payload)
if isinstance(line, str):
line = line.encode('utf-8')
return proto.dataReceived(line)
def _check_result_only_cmd(self, result, expected_cmd):
cmd_list = []
for line in result.split(b'\r\n'):
cmd, _, _ = line.partition(b' ')
cmd_list.append(cmd)
self.assertIn(expected_cmd, cmd_list)
def _check_cmd_and_value(self, result, expected):
result_list = []
for line in result.split(b'\r\n'):
cmd, _, data = line.partition(b' ')
result_list.append((cmd, data))
self.assertIn(expected, result_list)
def test_on_connect(self):
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'HELLO')
def test_invalid_command(self):
self._send_cmd(self.conn.proto1, 'INVALID-CMD')
self.conn.proto1.state.handle_error('')
self.assertTrue(self.conn.tr1.disconnecting)
def test_rate_limit(self):
hits = 1
window = 60
self.conn.proto1.ratelimit.set_limit(
HathorProtocol.RateLimitKeys.GLOBAL, hits, window)
# first will be OK and reach the hits limit per window
self.conn.run_one_step() # HELLO
# second will fail and be throttled
self.conn.run_one_step() # PEER-ID
self._check_cmd_and_value(
self.conn.peek_tr1_value(),
(b'THROTTLE', 'global At most {} hits every {} seconds'.format(
hits, window).encode('utf-8')),
)
self.conn.proto1.state.handle_throttle(b'')
# Test empty disconnect
self.conn.proto1.state = None
self.conn.proto1.connections = None
self.conn.proto1.on_disconnect(Failure(Exception()))
def test_invalid_size(self):
self.conn.tr1.clear()
# Creating big payload
big_payload = '['
for x in range(65536):
big_payload = '{}{}'.format(big_payload, x)
big_payload = '{}]'.format(big_payload)
self._send_cmd(self.conn.proto1, 'HELLO', big_payload)
self.assertTrue(self.conn.tr1.disconnecting)
def test_invalid_payload(self):
self.conn.run_one_step() # HELLO
self.conn.run_one_step() # PEER-ID
self.conn.run_one_step() # READY
with self.assertRaises(json.decoder.JSONDecodeError):
self._send_cmd(self.conn.proto1, 'PEERS', 'abc')
def test_invalid_hello1(self):
self.conn.tr1.clear()
self._send_cmd(self.conn.proto1, 'HELLO')
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'ERROR')
self.assertTrue(self.conn.tr1.disconnecting)
def test_invalid_hello2(self):
self.conn.tr1.clear()
self._send_cmd(self.conn.proto1, 'HELLO', 'invalid_payload')
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'ERROR')
self.assertTrue(self.conn.tr1.disconnecting)
def test_invalid_hello3(self):
self.conn.tr1.clear()
self._send_cmd(self.conn.proto1, 'HELLO', '{}')
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'ERROR')
self.assertTrue(self.conn.tr1.disconnecting)
def test_invalid_hello4(self):
self.conn.tr1.clear()
self._send_cmd(
self.conn.proto1, 'HELLO',
'{"app": 0, "remote_address": 1, "network": 2, "genesis_hash": "123", "settings_hash": "456"}'
)
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'ERROR')
self.assertTrue(self.conn.tr1.disconnecting)
def test_invalid_hello5(self):
# hello with clocks too far apart
self.conn.tr1.clear()
data = self.conn.proto2.state._get_hello_data()
data['timestamp'] = data[
'timestamp'] + settings.MAX_FUTURE_TIMESTAMP_ALLOWED / 2 + 1
self._send_cmd(self.conn.proto1, 'HELLO', json.dumps(data))
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'ERROR')
self.assertTrue(self.conn.tr1.disconnecting)
def test_valid_hello(self):
self.conn.run_one_step() # HELLO
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'PEER-ID')
self._check_result_only_cmd(self.conn.peek_tr2_value(), b'PEER-ID')
self.assertFalse(self.conn.tr1.disconnecting)
self.assertFalse(self.conn.tr2.disconnecting)
@inlineCallbacks
def test_invalid_peer_id(self):
self.conn.run_one_step() # HELLO
self.conn.run_one_step() # PEER-ID
self.conn.run_one_step() # READY
self.conn.run_one_step() # GET-PEERS
self.conn.run_one_step() # GET-TIPS
self.conn.run_one_step() # PEERS
self.conn.run_one_step() # TIPS
invalid_payload = {
'id': '123',
'entrypoints': ['tcp://localhost:1234']
}
yield self._send_cmd(self.conn.proto1, 'PEER-ID',
json.dumps(invalid_payload))
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'ERROR')
self.assertTrue(self.conn.tr1.disconnecting)
# When a DNS request is made to twisted client, it starts a callLater to check the resolv file every minute
# https://github.com/twisted/twisted/blob/59f8266c286e2b073ddb05c70317ac20693f2b0c/src/twisted/names/client.py#L147 # noqa
# So we need to stop this call manually, otherwise the reactor would be unclean with a pending call
# TODO We should use a fake DNS resolver for tests otherwise we would need internet connection to run it
resolver = twisted.names.client.getResolver().resolvers[2]
resolver._parseCall.cancel()
def test_invalid_same_peer_id(self):
manager3 = self.create_peer(self.network, peer_id=self.peer_id1)
conn = FakeConnection(self.manager1, manager3)
conn.run_one_step() # HELLO
conn.run_one_step() # PEER-ID
self._check_result_only_cmd(conn.peek_tr1_value(), b'ERROR')
self.assertTrue(conn.tr1.disconnecting)
def test_invalid_same_peer_id2(self):
# we connect nodes 1-2 and 1-3. Nodes 2 and 3 have the same peer_id. The connections
# are established simultaneously, so we do not detect a peer id duplication in PEER_ID
# state, only on READY state
manager3 = self.create_peer(self.network, peer_id=self.peer_id2)
conn = FakeConnection(manager3, self.manager1)
# HELLO
self.assertEqual(self.conn.peek_tr1_value().split()[0], b'HELLO')
self.assertEqual(self.conn.peek_tr2_value().split()[0], b'HELLO')
self.assertEqual(conn.peek_tr1_value().split()[0], b'HELLO')
self.assertEqual(conn.peek_tr2_value().split()[0], b'HELLO')
self.conn.run_one_step()
conn.run_one_step()
# PEER-ID
self.assertEqual(self.conn.peek_tr1_value().split()[0], b'PEER-ID')
self.assertEqual(self.conn.peek_tr2_value().split()[0], b'PEER-ID')
self.assertEqual(conn.peek_tr1_value().split()[0], b'PEER-ID')
self.assertEqual(conn.peek_tr2_value().split()[0], b'PEER-ID')
self.conn.run_one_step()
conn.run_one_step()
# READY
self.assertEqual(self.conn.peek_tr1_value().split()[0], b'READY')
self.assertEqual(self.conn.peek_tr2_value().split()[0], b'READY')
self.assertEqual(conn.peek_tr1_value().split()[0], b'READY')
self.assertEqual(conn.peek_tr2_value().split()[0], b'READY')
self.conn.run_one_step()
conn.run_one_step()
# continue until messages stop
self.conn.run_until_complete()
conn.run_until_complete()
self.run_to_completion()
# one of the peers will close the connection. We don't know which on, as it depends
# on the peer ids
conn1_value = self.conn.peek_tr1_value() + self.conn.peek_tr2_value()
if b'ERROR' in conn1_value:
conn_dead = self.conn
conn_alive = conn
else:
conn_dead = conn
conn_alive = self.conn
self._check_result_only_cmd(
conn_dead.peek_tr1_value() + conn_dead.peek_tr2_value(), b'ERROR')
# at this point, the connection must be closing as the error was detected on READY state
self.assertIn(
True, [conn_dead.tr1.disconnecting, conn_dead.tr2.disconnecting])
# check connected_peers
connected_peers = list(
self.manager1.connections.connected_peers.values())
self.assertEquals(1, len(connected_peers))
self.assertIn(connected_peers[0],
[conn_alive.proto1, conn_alive.proto2])
# connection is still up
self.assertIsConnected(conn_alive)
def test_invalid_different_network(self):
manager3 = self.create_peer(network='mainnet')
conn = FakeConnection(self.manager1, manager3)
conn.run_one_step() # HELLO
self._check_result_only_cmd(conn.peek_tr1_value(), b'ERROR')
self.assertTrue(conn.tr1.disconnecting)
conn.run_one_step() # ERROR
def test_valid_hello_and_peer_id(self):
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'HELLO')
self._check_result_only_cmd(self.conn.peek_tr2_value(), b'HELLO')
self.conn.run_one_step() # HELLO
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'PEER-ID')
self._check_result_only_cmd(self.conn.peek_tr2_value(), b'PEER-ID')
self.conn.run_one_step() # PEER-ID
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'READY')
self._check_result_only_cmd(self.conn.peek_tr2_value(), b'READY')
self.conn.run_one_step() # READY
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'GET-PEERS')
self._check_result_only_cmd(self.conn.peek_tr2_value(), b'GET-PEERS')
self.conn.run_one_step() # GET-PEERS
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'GET-TIPS')
self._check_result_only_cmd(self.conn.peek_tr2_value(), b'GET-TIPS')
self.conn.run_one_step() # GET-TIPS
self.assertIsConnected()
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'PEERS')
self._check_result_only_cmd(self.conn.peek_tr2_value(), b'PEERS')
self.conn.run_one_step() # PEERS
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'TIPS')
self._check_result_only_cmd(self.conn.peek_tr2_value(), b'TIPS')
self.conn.run_one_step() # TIPS
self.assertIsConnected()
def test_send_ping(self):
self.conn.run_one_step() # HELLO
self.conn.run_one_step() # PEER-ID
self.conn.run_one_step() # READY
self.conn.run_one_step() # GET-PEERS
self.conn.run_one_step() # GET-TIPS
self.conn.run_one_step() # PEERS
self.conn.run_one_step() # TIPS
self.assertIsConnected()
self.clock.advance(5)
self.assertEqual(b'PING\r\n', self.conn.peek_tr1_value())
self.assertEqual(b'PING\r\n', self.conn.peek_tr2_value())
self.conn.run_one_step() # PING
self.conn.run_one_step() # GET-TIPS
self.assertEqual(b'PONG\r\n', self.conn.peek_tr1_value())
self.assertEqual(b'PONG\r\n', self.conn.peek_tr2_value())
while b'PONG\r\n' in self.conn.peek_tr1_value():
self.conn.run_one_step()
self.assertEqual(self.clock.seconds(), self.conn.proto1.last_message)
def test_send_invalid_unicode(self):
# \xff is an invalid unicode.
self.conn.proto1.dataReceived(b'\xff\r\n')
self.assertTrue(self.conn.tr1.disconnecting)
def test_on_disconnect(self):
self.assertIn(self.conn.proto1,
self.manager1.connections.handshaking_peers)
self.conn.disconnect(Failure(Exception('testing')))
self.assertNotIn(self.conn.proto1,
self.manager1.connections.handshaking_peers)
def test_on_disconnect_after_hello(self):
self.conn.run_one_step() # HELLO
self.assertIn(self.conn.proto1,
self.manager1.connections.handshaking_peers)
self.conn.disconnect(Failure(Exception('testing')))
self.assertNotIn(self.conn.proto1,
self.manager1.connections.handshaking_peers)
def test_on_disconnect_after_peer_id(self):
self.conn.run_one_step() # HELLO
self.assertIn(self.conn.proto1,
self.manager1.connections.handshaking_peers)
# The peer READY now depends on a message exchange from both peers, so we need one more step
self.conn.run_one_step() # PEER-ID
self.conn.run_one_step() # READY
self.assertIn(self.conn.proto1,
self.manager1.connections.connected_peers.values())
self.assertNotIn(self.conn.proto1,
self.manager1.connections.handshaking_peers)
self.conn.disconnect(Failure(Exception('testing')))
self.assertNotIn(self.conn.proto1,
self.manager1.connections.connected_peers.values())
def test_two_connections(self):
self.conn.run_one_step() # HELLO
self.conn.run_one_step() # PEER-ID
self.conn.run_one_step() # READY
self.conn.run_one_step() # GET-PEERS
self.conn.run_one_step() # GET-TIPS
manager3 = self.create_peer(self.network)
conn = FakeConnection(self.manager1, manager3)
conn.run_one_step() # HELLO
conn.run_one_step() # PEER-ID
conn.run_one_step() # READY
conn.run_one_step() # GET-PEERS
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'PEERS')
self.conn.run_one_step()
@inlineCallbacks
def test_get_data(self):
self.conn.run_one_step() # HELLO
self.conn.run_one_step() # PEER-ID
self.conn.run_one_step() # READY
self.conn.run_one_step() # GET-PEERS
self.conn.run_one_step() # GET-TIPS
self.conn.run_one_step() # PEERS
self.conn.run_one_step() # TIPS
self.assertIsConnected()
missing_tx = '00000000228dfcd5dec1c9c6263f6430a5b4316bb9e3decb9441a6414bfd8697'
yield self._send_cmd(self.conn.proto1, 'GET-DATA', missing_tx)
self._check_result_only_cmd(self.conn.peek_tr1_value(), b'NOT-FOUND')
self.conn.run_one_step()