py-libp2p/libp2p/security/base_session.py

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from typing import Optional
from libp2p.crypto.keys import PrivateKey, PublicKey
from libp2p.network.connection.raw_connection_interface import IRawConnection
from libp2p.peer.id import ID
from libp2p.security.base_transport import BaseSecureTransport
from libp2p.security.secure_conn_interface import ISecureConn
class BaseSession(ISecureConn, IRawConnection):
"""
``BaseSession`` is not fully instantiated from its abstract classes as it
is only meant to be used in clases that derive from it.
"""
def __init__(
self, transport: BaseSecureTransport, conn: IRawConnection, peer_id: ID
) -> None:
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self.local_peer = transport.local_peer
self.local_private_key = transport.local_private_key
self.conn = conn
self.remote_peer_id = peer_id
self.remote_permanent_pubkey = None
self.initiator = self.conn.initiator
self.writer = self.conn.writer
self.reader = self.conn.reader
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# TODO clean up how this is passed around?
def next_stream_id(self) -> int:
return self.conn.next_stream_id()
async def write(self, data: bytes) -> None:
await self.conn.write(data)
async def read(self) -> bytes:
return await self.conn.read()
def close(self) -> None:
self.conn.close()
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def get_local_peer(self) -> ID:
return self.local_peer
def get_local_private_key(self) -> PrivateKey:
return self.local_private_key
def get_remote_peer(self) -> ID:
return self.remote_peer_id
def get_remote_public_key(self) -> Optional[PublicKey]:
return self.remote_permanent_pubkey