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"""
Integration test: QuicChunkServer ↔ QuicChunkClient over QUIC/UDP loopback.
Same structure as test_transport.py but uses QUIC instead of TCP+TLS.
"""
import asyncio
import os
import time
import jwt
import pytest
from pathlib import Path
from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
from cryptography.hazmat.primitives import serialization
from meshbay_common.crypto import generate_gek, pk_to_b64
from meshbay_node.indexer import DirectoryIndexer, GroupIndex
from conftest import one_root
from meshbay_node.transport.quic_server import QuicChunkServer, Denylist
from meshbay_node.transport.quic_client import QuicChunkClient
@pytest.fixture
def sk_node():
return Ed25519PrivateKey.generate()
@pytest.fixture
def sk_hub():
return Ed25519PrivateKey.generate()
@pytest.fixture
def gek():
return generate_gek()
@pytest.fixture
def shared_dir(tmp_path):
d = tmp_path / "shared"
d.mkdir()
(d / "test.mp4").write_bytes(os.urandom(2 * 1024 * 1024)) # 2 MB
(d / "small.txt").write_bytes(b"hello quic " * 100)
return d
def make_jwt(sk_hub, pk_node_b64, ttl=3600, groups=None):
sk_pem = sk_hub.private_bytes(
serialization.Encoding.PEM,
serialization.PrivateFormat.PKCS8,
serialization.NoEncryption(),
)
now = int(time.time())
return jwt.encode({
"iss": "test-hub", "sub": "user-001",
"pk_user": pk_node_b64, "hub_id": "test-hub",
"jti": "test-jti", "iat": now, "exp": now + ttl,
# group_id is mandatory (M1), so default tokens are members of "g".
"groups": groups if groups is not None else ["g"],
}, sk_pem, algorithm="EdDSA")
@pytest.mark.asyncio
async def test_quic_chunk_roundtrip(sk_node, sk_hub, gek, shared_dir, tmp_path):
"""Full QUIC roundtrip: server serves chunk, client verifies and decrypts."""
hub_pk_pem = sk_hub.public_key().public_bytes(
serialization.Encoding.PEM, serialization.PublicFormat.SubjectPublicKeyInfo)
indexer = DirectoryIndexer(roots=one_root(shared_dir), group_id="g", sk_node=sk_node, gek=gek)
await indexer.initial_scan()
cert_path = tmp_path / "node.crt"
key_path = tmp_path / "node.key"
server = QuicChunkServer(
sk_node=sk_node, hub_pk_pem=hub_pk_pem, gek=gek,
roots=one_root(shared_dir), index=indexer.index,
host="127.0.0.1", port=19100,
cert_path=cert_path, key_path=key_path,
)
await server.start()
token = make_jwt(sk_hub, pk_to_b64(sk_node.public_key()))
entry = next(e for e in indexer.index.entries if e.name == "test.mp4")
async with QuicChunkClient(
host="127.0.0.1", port=19100,
jwt_token=token, gek=gek,
pk_node_b64=pk_to_b64(sk_node.public_key()),
group_id="g",
) as client:
chunk0 = await client.fetch_chunk(entry.id, chunk_index=0)
chunk1 = await client.fetch_chunk(entry.id, chunk_index=1)
original = (shared_dir / "test.mp4").read_bytes()
assert chunk0 + chunk1 == original
await server.stop()
@pytest.mark.asyncio
async def test_quic_fetch_index(sk_node, sk_hub, gek, shared_dir, tmp_path):
"""QUIC index sync returns deserializable GroupIndex."""
hub_pk_pem = sk_hub.public_key().public_bytes(
serialization.Encoding.PEM, serialization.PublicFormat.SubjectPublicKeyInfo)
indexer = DirectoryIndexer(roots=one_root(shared_dir), group_id="g", sk_node=sk_node, gek=gek)
await indexer.initial_scan()
cert_path = tmp_path / "node.crt"
key_path = tmp_path / "node.key"
server = QuicChunkServer(
sk_node=sk_node, hub_pk_pem=hub_pk_pem, gek=gek,
roots=one_root(shared_dir), index=indexer.index,
host="127.0.0.1", port=19101,
cert_path=cert_path, key_path=key_path,
)
await server.start()
token = make_jwt(sk_hub, pk_to_b64(sk_node.public_key()))
async with QuicChunkClient(
host="127.0.0.1", port=19101,
jwt_token=token, gek=gek,
pk_node_b64=pk_to_b64(sk_node.public_key()),
group_id="g",
) as client:
wire = await client.fetch_index()
recovered = GroupIndex.deserialize(wire, sk_node=sk_node, gek=gek)
assert recovered.count == 2
await server.stop()
@pytest.mark.asyncio
async def test_quic_invalid_jwt_rejected(sk_node, sk_hub, gek, shared_dir, tmp_path):
"""QUIC server rejects connections with tokens signed by wrong hub key."""
hub_pk_pem = sk_hub.public_key().public_bytes(
serialization.Encoding.PEM, serialization.PublicFormat.SubjectPublicKeyInfo)
indexer = DirectoryIndexer(roots=one_root(shared_dir), group_id="g", sk_node=sk_node, gek=gek)
await indexer.initial_scan()
cert_path = tmp_path / "node.crt"
key_path = tmp_path / "node.key"
server = QuicChunkServer(
sk_node=sk_node, hub_pk_pem=hub_pk_pem, gek=gek,
roots=one_root(shared_dir), index=indexer.index,
host="127.0.0.1", port=19102,
cert_path=cert_path, key_path=key_path,
)
await server.start()
sk_other = Ed25519PrivateKey.generate()
bad_token = make_jwt(sk_other, pk_to_b64(sk_node.public_key()))
with pytest.raises(Exception):
async with QuicChunkClient(
host="127.0.0.1", port=19102,
jwt_token=bad_token, gek=gek,
pk_node_b64=pk_to_b64(sk_node.public_key()),
) as client:
await client.fetch_index()
await server.stop()
@pytest.mark.asyncio
async def test_quic_wrong_group_rejected(sk_node, sk_hub, gek, shared_dir, tmp_path):
"""QUIC server rejects a client whose JWT groups don't include the requested group_id."""
hub_pk_pem = sk_hub.public_key().public_bytes(
serialization.Encoding.PEM, serialization.PublicFormat.SubjectPublicKeyInfo)
indexer = DirectoryIndexer(roots=one_root(shared_dir), group_id="g", sk_node=sk_node, gek=gek)
await indexer.initial_scan()
cert_path = tmp_path / "node.crt"
key_path = tmp_path / "node.key"
server = QuicChunkServer(
sk_node=sk_node, hub_pk_pem=hub_pk_pem, gek=gek,
roots=one_root(shared_dir), index=indexer.index,
host="127.0.0.1", port=19103,
cert_path=cert_path, key_path=key_path,
)
await server.start()
token = make_jwt(sk_hub, pk_to_b64(sk_node.public_key()), groups=["group-a"])
with pytest.raises(ConnectionError, match="rejected"):
async with QuicChunkClient(
host="127.0.0.1", port=19103,
jwt_token=token, gek=gek,
pk_node_b64=pk_to_b64(sk_node.public_key()),
group_id="group-b",
) as client:
await client.fetch_index()
await server.stop()
@pytest.mark.asyncio
async def test_quic_session_resumption(sk_node, sk_hub, gek, shared_dir, tmp_path):
"""QUIC 0-RTT: connect, save session ticket, reconnect with ticket."""
hub_pk_pem = sk_hub.public_key().public_bytes(
serialization.Encoding.PEM, serialization.PublicFormat.SubjectPublicKeyInfo)
indexer = DirectoryIndexer(roots=one_root(shared_dir), group_id="g", sk_node=sk_node, gek=gek)
await indexer.initial_scan()
cert_path = tmp_path / "node.crt"
key_path = tmp_path / "node.key"
server = QuicChunkServer(
sk_node=sk_node, hub_pk_pem=hub_pk_pem, gek=gek,
roots=one_root(shared_dir), index=indexer.index,
host="127.0.0.1", port=19104,
cert_path=cert_path, key_path=key_path,
)
await server.start()
token = make_jwt(sk_hub, pk_to_b64(sk_node.public_key()))
pk_b64 = pk_to_b64(sk_node.public_key())
# First connection — captures session ticket
saved_ticket = None
async with QuicChunkClient(
host="127.0.0.1", port=19104,
jwt_token=token, gek=gek, pk_node_b64=pk_b64,
group_id="g",
) as client:
wire = await client.fetch_index()
assert GroupIndex.deserialize(wire, sk_node=sk_node, gek=gek).count == 2
saved_ticket = client.session_ticket
saved_cert = client.peer_cert_der
# Allow server to process the close
await asyncio.sleep(0.1)
# Second connection — reuses session ticket (0-RTT)
async with QuicChunkClient(
host="127.0.0.1", port=19104,
jwt_token=token, gek=gek, pk_node_b64=pk_b64,
session_ticket=saved_ticket,
# A resumed session carries no certificate, so the binding anchor from the
# original handshake travels with the ticket (11.5.6).
peer_cert_der=saved_cert,
group_id="g",
) as client:
wire = await client.fetch_index()
assert GroupIndex.deserialize(wire, sk_node=sk_node, gek=gek).count == 2
await server.stop()
@pytest.mark.asyncio
async def test_quic_denylist_blocks_user(sk_node, sk_hub, gek, shared_dir, tmp_path):
"""QUIC server rejects a connection when the user is on the denylist."""
hub_pk_pem = sk_hub.public_key().public_bytes(
serialization.Encoding.PEM, serialization.PublicFormat.SubjectPublicKeyInfo)
indexer = DirectoryIndexer(roots=one_root(shared_dir), group_id="g", sk_node=sk_node, gek=gek)
await indexer.initial_scan()
cert_path = tmp_path / "node.crt"
key_path = tmp_path / "node.key"
denylist = Denylist()
server = QuicChunkServer(
sk_node=sk_node, hub_pk_pem=hub_pk_pem, gek=gek,
roots=one_root(shared_dir), index=indexer.index,
host="127.0.0.1", port=19105,
cert_path=cert_path, key_path=key_path,
denylist=denylist,
)
await server.start()
token = make_jwt(sk_hub, pk_to_b64(sk_node.public_key()))
pk_b64 = pk_to_b64(sk_node.public_key())
# Connection works before denylisting
async with QuicChunkClient(
host="127.0.0.1", port=19105,
jwt_token=token, gek=gek, pk_node_b64=pk_b64,
group_id="g",
) as client:
wire = await client.fetch_index()
assert GroupIndex.deserialize(wire, sk_node=sk_node, gek=gek).count == 2
# Add user to denylist
denylist.deny_user("user-001")
# Connection now rejected
with pytest.raises(Exception):
async with QuicChunkClient(
host="127.0.0.1", port=19105,
jwt_token=token, gek=gek, pk_node_b64=pk_b64,
group_id="g",
) as client:
await client.fetch_index()
await server.stop()
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