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This commit is contained in:
Alex Stokes
2019-07-31 15:00:12 -07:00
parent a2133d8c7c
commit 0ae9840928
69 changed files with 791 additions and 1095 deletions
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62
libp2p/network/swarm.py
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@ -1,18 +1,9 @@
import asyncio
from typing import (
Awaitable,
Callable,
Dict,
List,
Sequence,
)
from typing import Awaitable, Callable, Dict, List, Sequence
from multiaddr import Multiaddr
from libp2p.peer.id import (
ID,
id_b58_decode,
)
from libp2p.peer.id import ID, id_b58_decode
from libp2p.peer.peerstore import PeerStore
from libp2p.protocol_muxer.multiselect import Multiselect
from libp2p.protocol_muxer.multiselect_client import MultiselectClient
@ -51,12 +42,14 @@ class Swarm(INetwork):
notifees: List[INotifee]
def __init__(self,
peer_id: ID,
peerstore: PeerStore,
upgrader: TransportUpgrader,
transport: ITransport,
router: IPeerRouting):
def __init__(
self,
peer_id: ID,
peerstore: PeerStore,
upgrader: TransportUpgrader,
transport: ITransport,
router: IPeerRouting,
):
self.self_id = peer_id
self.peerstore = peerstore
self.upgrader = upgrader
@ -79,7 +72,9 @@ class Swarm(INetwork):
def get_peer_id(self) -> ID:
return self.self_id
def set_stream_handler(self, protocol_id: str, stream_handler: StreamHandlerFn) -> bool:
def set_stream_handler(
self, protocol_id: str, stream_handler: StreamHandlerFn
) -> bool:
"""
:param protocol_id: protocol id used on stream
:param stream_handler: a stream handler instance
@ -119,8 +114,9 @@ class Swarm(INetwork):
# Per, https://discuss.libp2p.io/t/multistream-security/130, we first secure
# the conn and then mux the conn
secured_conn = await self.upgrader.upgrade_security(raw_conn, peer_id, True)
muxed_conn = self.upgrader.upgrade_connection(secured_conn, \
self.generic_protocol_handler, peer_id)
muxed_conn = self.upgrader.upgrade_connection(
secured_conn, self.generic_protocol_handler, peer_id
)
# Store muxed connection in connections
self.connections[peer_id] = muxed_conn
@ -154,8 +150,7 @@ class Swarm(INetwork):
# Perform protocol muxing to determine protocol to use
selected_protocol = await self.multiselect_client.select_one_of(
list(protocol_ids),
muxed_stream,
list(protocol_ids), muxed_stream
)
# Create a net stream with the selected protocol
@ -186,8 +181,9 @@ class Swarm(INetwork):
if str(multiaddr) in self.listeners:
return True
async def conn_handler(reader: asyncio.StreamReader,
writer: asyncio.StreamWriter) -> None:
async def conn_handler(
reader: asyncio.StreamReader, writer: asyncio.StreamWriter
) -> None:
# Read in first message (should be peer_id of initiator) and ack
peer_id = id_b58_decode((await reader.read(1024)).decode())
@ -196,14 +192,22 @@ class Swarm(INetwork):
# Upgrade reader/write to a net_stream and pass \
# to appropriate stream handler (using multiaddr)
raw_conn = RawConnection(multiaddr.value_for_protocol('ip4'),
multiaddr.value_for_protocol('tcp'), reader, writer, False)
raw_conn = RawConnection(
multiaddr.value_for_protocol("ip4"),
multiaddr.value_for_protocol("tcp"),
reader,
writer,
False,
)
# Per, https://discuss.libp2p.io/t/multistream-security/130, we first secure
# the conn and then mux the conn
secured_conn = await self.upgrader.upgrade_security(raw_conn, peer_id, False)
muxed_conn = self.upgrader.upgrade_connection(secured_conn, \
self.generic_protocol_handler, peer_id)
secured_conn = await self.upgrader.upgrade_security(
raw_conn, peer_id, False
)
muxed_conn = self.upgrader.upgrade_connection(
secured_conn, self.generic_protocol_handler, peer_id
)
# Store muxed_conn with peer id
self.connections[peer_id] = muxed_conn