def bootstrap_nodes(self):
if self._bootstrap_nodes is None or len(self._bootstrap_nodes) == 0:
if self.is_dev_test_node:
self.save_node_address_to_local_peer_pool_file()
if len(self.preferred_nodes) == 0:
self._bootstrap_nodes = tuple(
KademliaNode.from_uri(enode)
for enode in MAINNET_BOOTNODES)
else:
saved_bootstrap_nodes = tuple(
load_local_nodes(self.local_peer_pool_path))
#assume instance 0 is the bootstrap node for dev testing
bootstrap_node = None
for loop_bootstrap_node in saved_bootstrap_nodes:
if loop_bootstrap_node.address.tcp_port == 30303:
bootstrap_node = loop_bootstrap_node
if bootstrap_node is not None and (bootstrap_node.pubkey !=
self.nodekey_public):
self._bootstrap_nodes = (bootstrap_node, )
else:
self._bootstrap_nodes = ()
else:
if self.network_id == MAINNET_NETWORK_ID:
self._bootstrap_nodes = tuple(
KademliaNode.from_uri(enode)
for enode in MAINNET_BOOTNODES)
return self._bootstrap_nodes
def preferred_nodes(self):
if self.is_dev_test_node and (self._preferred_nodes is None
or len(self._preferred_nodes) == 0):
try:
self._preferred_nodes = tuple(
load_local_nodes(self.local_peer_pool_path, self.nodekey))
except FileNotFoundError:
self._preferred_nodes = ()
return self._preferred_nodes