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"""Tests for peer listener & manager."""
import asyncio
from datetime import UTC, datetime, timedelta
import hashlib
import os
import pytest
from snitun.multiplexer.crypto import CryptoTransport
from snitun.server.listener_peer import PeerListener
from snitun.server.peer_manager import PeerManager
from ..conftest import Client
from .const_fernet import create_peer_config
async def test_init_listener(peer_manager: PeerManager) -> None:
"""Create a PeerListener instance and start/stop it."""
listener = PeerListener(peer_manager, "127.0.0.1", "8893")
await listener.start()
await asyncio.sleep(0.1)
await listener.stop()
async def test_peer_listener(
peer_manager: PeerManager,
peer_listener: PeerListener,
test_client_peer: Client,
) -> None:
"""Run a full flow of with a peer."""
valid = datetime.now(tz=UTC) + timedelta(days=1)
aes_key = os.urandom(32)
aes_iv = os.urandom(16)
hostname = "localhost"
fernet_token = create_peer_config(valid.timestamp(), hostname, aes_key, aes_iv)
crypto = CryptoTransport(aes_key, aes_iv)
test_client_peer.writer.write(fernet_token)
await test_client_peer.writer.drain()
token = await test_client_peer.reader.readexactly(32)
token = hashlib.sha256(crypto.decrypt(token)).digest()
test_client_peer.writer.write(crypto.encrypt(token))
await test_client_peer.writer.drain()
await asyncio.sleep(0.1)
assert peer_manager.peer_available(hostname)
async def test_peer_listener_invalid(
peer_manager: PeerManager,
peer_listener: PeerListener,
test_client_peer: Client,
) -> None:
"""Run a full flow of with a peer."""
valid = datetime.now(tz=UTC) - timedelta(days=1)
aes_key = os.urandom(32)
aes_iv = os.urandom(16)
hostname = "localhost"
fernet_token = create_peer_config(valid.timestamp(), hostname, aes_key, aes_iv)
crypto = CryptoTransport(aes_key, aes_iv)
test_client_peer.writer.write(fernet_token)
await test_client_peer.writer.drain()
with pytest.raises(asyncio.IncompleteReadError):
token = await test_client_peer.reader.readexactly(32)
async def test_peer_listener_disconnect(
peer_manager: PeerManager,
peer_listener: PeerListener,
test_client_peer: Client,
) -> None:
"""Run a full flow of with a peer after that disconnect."""
valid = datetime.now(tz=UTC) + timedelta(days=1)
aes_key = os.urandom(32)
aes_iv = os.urandom(16)
hostname = "localhost"
fernet_token = create_peer_config(valid.timestamp(), hostname, aes_key, aes_iv)
crypto = CryptoTransport(aes_key, aes_iv)
test_client_peer.writer.write(fernet_token)
await test_client_peer.writer.drain()
token = await test_client_peer.reader.readexactly(32)
token = hashlib.sha256(crypto.decrypt(token)).digest()
test_client_peer.writer.write(crypto.encrypt(token))
await test_client_peer.writer.drain()
await asyncio.sleep(0.1)
assert peer_manager.peer_available(hostname)
test_client_peer.writer.close()
await asyncio.sleep(0.1)
assert not peer_manager.peer_available(hostname)
async def test_peer_listener_timeout(
raise_timeout: None,
peer_manager: PeerManager,
peer_listener: PeerListener,
test_client_peer: Client,
) -> None:
"""Run a full flow of with a peer."""
valid = datetime.now(tz=UTC) + timedelta(days=1)
aes_key = os.urandom(32)
aes_iv = os.urandom(16)
hostname = "localhost"
fernet_token = create_peer_config(valid.timestamp(), hostname, aes_key, aes_iv)
crypto = CryptoTransport(aes_key, aes_iv)
test_client_peer.writer.write(fernet_token)
await test_client_peer.writer.drain()
with pytest.raises(asyncio.IncompleteReadError):
token = await test_client_peer.reader.readexactly(32)
token = hashlib.sha256(crypto.decrypt(token)).digest()
test_client_peer.writer.write(crypto.encrypt(token))
await test_client_peer.writer.drain()
await asyncio.sleep(0.1)
assert not peer_manager.peer_available(hostname)
async def test_peer_listener_expire(
peer_manager: PeerManager,
peer_listener: PeerListener,
test_client_peer: Client,
) -> None:
"""Run a full flow of with a peer."""
from snitun.server import listener_peer
listener_peer.CHECK_VALID_EXPIRE = 0.1
valid = datetime.now() + timedelta(seconds=1)
aes_key = os.urandom(32)
aes_iv = os.urandom(16)
hostname = "localhost"
fernet_token = create_peer_config(valid.timestamp(), hostname, aes_key, aes_iv)
crypto = CryptoTransport(aes_key, aes_iv)
test_client_peer.writer.write(fernet_token)
await test_client_peer.writer.drain()
token = await test_client_peer.reader.readexactly(32)
token = hashlib.sha256(crypto.decrypt(token)).digest()
test_client_peer.writer.write(crypto.encrypt(token))
await test_client_peer.writer.drain()
await asyncio.sleep(0.1)
assert peer_manager.peer_available(hostname)
await asyncio.sleep(1)
assert not peer_manager.peer_available(hostname)
listener_peer.CHECK_VALID_EXPIRE = 3600
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