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|
"""Test Client Peer connections."""
import asyncio
from datetime import UTC, datetime, timedelta
import ipaddress
import os
import pytest
from snitun.client.client_peer import ClientPeer
from snitun.client.connector import Connector
from snitun.exceptions import SniTunConnectionError
from snitun.server.listener_peer import PeerListener
from snitun.server.peer_manager import PeerManager
from ..conftest import Client
from ..server.const_fernet import create_peer_config
IP_ADDR = ipaddress.ip_address("8.8.8.8")
async def test_init_client_peer(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test setup of ClientPeer."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
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)
await client.start(connector, fernet_token, aes_key, aes_iv)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
assert client.is_connected
assert client._multiplexer._throttling is None
await client.stop()
await asyncio.sleep(0.1)
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
async def test_init_client_peer_with_alias(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test setup of ClientPeer with custom tomain."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
assert not peer_manager.peer_available("localhost.custom")
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,
alias=["localhost.custom"],
)
await client.start(connector, fernet_token, aes_key, aes_iv)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
assert peer_manager.peer_available("localhost.custom")
assert client.is_connected
assert client._multiplexer._throttling is None
await client.stop()
await asyncio.sleep(0.1)
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
assert not peer_manager.peer_available("localhost.custom")
async def test_init_client_peer_invalid_token(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test setup of ClientPeer."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not peer_manager.peer_available("localhost")
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)
with pytest.raises(SniTunConnectionError):
await client.start(connector, fernet_token, aes_key, aes_iv)
await asyncio.sleep(0.1)
assert not peer_manager.peer_available("localhost")
async def test_flow_client_peer(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test setup of ClientPeer, test flow."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not peer_manager.peer_available("localhost")
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)
await client.start(connector, fernet_token, aes_key, aes_iv)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
peer = peer_manager.get_peer("localhost")
channel = await peer.multiplexer.create_channel(IP_ADDR, lambda _: None)
await asyncio.sleep(0.1)
assert test_endpoint
test_connection = test_endpoint[0]
await channel.write(b"Hallo")
data = await test_connection.reader.read(1024)
assert data == b"Hallo"
assert channel.ip_address == IP_ADDR
test_connection.writer.write(b"Hiro")
await test_connection.writer.drain()
data = await channel.read()
assert data == b"Hiro"
await client.stop()
await asyncio.sleep(0.1)
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
test_connection.close.set()
async def test_close_client_peer(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test setup of ClientPeer, test flow - close it."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not peer_manager.peer_available("localhost")
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)
await client.start(connector, fernet_token, aes_key, aes_iv)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
peer = peer_manager.get_peer("localhost")
channel = await peer.multiplexer.create_channel(IP_ADDR, lambda _: None)
await asyncio.sleep(0.1)
assert test_endpoint
test_connection = test_endpoint[0]
await channel.write(b"Hallo")
data = await test_connection.reader.read(1024)
assert data == b"Hallo"
assert channel.ip_address == IP_ADDR
test_connection.writer.write(b"Hiro")
await test_connection.writer.drain()
data = await channel.read()
assert data == b"Hiro"
await client.stop()
await asyncio.sleep(0.1)
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
data = await test_connection.reader.read(1024)
assert not data
test_connection.close.set()
async def test_init_client_peer_wait(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test setup of ClientPeer."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
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)
await client.start(connector, fernet_token, aes_key, aes_iv)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
assert client.is_connected
assert not client.wait().done()
await client.stop()
await asyncio.sleep(0.1)
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
with pytest.raises(RuntimeError):
assert client.wait().done()
async def test_init_client_peer_wait_waits_for_task(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test setup of ClientPeer."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
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)
await client.start(connector, fernet_token, aes_key, aes_iv)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
assert client.is_connected
assert not client.wait().done()
# Shutdown the multiplexer from under the client
client._multiplexer.shutdown()
await client.wait()
# Make sure the task is actually done
assert client._handler_task.done()
await client._stop_handler()
# Make sure _stop_handler cleans up the task reference
assert client._handler_task is None
async def test_client_peer_can_start_again(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test once the connection fails, we can start again."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
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)
await client.start(connector, fernet_token, aes_key, aes_iv)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
assert client.is_connected
assert not client.wait().done()
# Shutdown the multiplexer from under the client
client._multiplexer.shutdown()
await client.wait()
assert not client.is_connected
# Now make sure we can start again
await client.start(connector, fernet_token, aes_key, aes_iv)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
await client.stop()
assert not client.is_connected
async def test_init_client_peer_throttling(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test setup of ClientPeer."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
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)
await client.start(connector, fernet_token, aes_key, aes_iv, throttling=500)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
assert client.is_connected
assert client._multiplexer._throttling == 0.002
await client.stop()
await asyncio.sleep(0.1)
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
async def test_init_client_peer_stop_does_not_swallow_cancellation(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test stopping the peer does not swallow cancellation."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
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)
await client.start(connector, fernet_token, aes_key, aes_iv)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
assert client.is_connected
task = asyncio.create_task(client._stop_handler())
await asyncio.sleep(0)
task.cancel()
with pytest.raises(asyncio.CancelledError):
await task
await asyncio.sleep(0.1)
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
async def test_init_client_peer_stop_twice(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test calling stop twice raises an error."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
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)
await client.start(connector, fernet_token, aes_key, aes_iv)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
assert client.is_connected
await client.stop()
with pytest.raises(RuntimeError):
await client.stop()
await asyncio.sleep(0.1)
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
async def test_init_client_peer_custom_protocol_version(
peer_listener: PeerListener,
peer_manager: PeerManager,
test_endpoint: list[Client],
) -> None:
"""Test setup of ClientPeer with custom protocol version."""
client = ClientPeer("127.0.0.1", "8893")
connector = Connector("127.0.0.1", "8822")
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
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)
# Start with protocol version 0
await client.start(connector, fernet_token, aes_key, aes_iv, protocol_version=0)
await asyncio.sleep(0.1)
assert peer_manager.peer_available("localhost")
assert client.is_connected
# Verify the multiplexer was created with protocol version 0
assert client._multiplexer._peer_protocol_version == 0
await client.stop()
await asyncio.sleep(0.1)
assert not client.is_connected
assert not peer_manager.peer_available("localhost")
|
