pyssb/ssb/tests/test_packet_stream.py
2018-02-04 22:27:54 +01:00

263 lines
8.1 KiB
Python

import json
from asyncio import ensure_future, gather, Event
import pytest
from asynctest import patch
from nacl.signing import SigningKey
from secret_handshake.network import SHSDuplexStream
from ssb.packet_stream import PacketStream, PSMessageType
async def _collect_messages(generator):
results = []
async for msg in generator:
results.append(msg)
return results
MSG_BODY_1 = (b'{"previous":"%KTGP6W8vF80McRAZHYDWuKOD0KlNyKSq6Gb42iuV7Iw=.sha256","author":"@1+Iwm79DKvVBqYKFkhT6fWRbA'
b'VvNNVH4F2BSxwhYmx8=.ed25519","sequence":116,"timestamp":1496696699331,"hash":"sha256","content":{"type"'
b':"post","channel":"crypto","text":"Does anybody know any good resources (e.g. books) to learn cryptogra'
b'phy? I\'m not speaking of basic concepts (e.g. what\'s a private key) but the actual mathematics behind'
b' the whole thing.\\nI have a copy of the \\"Handbook of Applied Cryptography\\" on my bookshelf but I f'
b'ound it too long/hard to follow. Are there any better alternatives?","mentions":[]},"signature":"hqKePb'
b'bTXWxEi1njDnOWFsL0M0AoNoWyBFgNE6KXj//DThepaZSy9vRbygDHX5uNmCdyOrsQrwZsZhmUYKwtDQ==.sig.ed25519"}')
MSG_BODY_2 = (b'{"previous":"%iQRhPyqmNLpGaO1Tpm1I22jqnUEwRwkCTDbwAGtM+lY=.sha256","author":"@1+Iwm79DKvVBqYKFkhT6fWRbA'
b'VvNNVH4F2BSxwhYmx8=.ed25519","sequence":103,"timestamp":1496674211806,"hash":"sha256","content":{"type"'
b':"post","channel":"git-ssb","text":"Is it only me or `git.scuttlebot.io` is timing out?\\n\\nE.g. try a'
b'ccessing %vZCTqraoqKBKNZeATErXEtnoEr+wnT3p8tT+vL+29I4=.sha256","mentions":[{"link":"%vZCTqraoqKBKNZeATE'
b'rXEtnoEr+wnT3p8tT+vL+29I4=.sha256"}]},"signature":"+i4U0HUGDDEyNoNr2NIROPnT3WQj3RuTaIhY5koWW8f0vwr4tZsY'
b'mAkqqMwFWfP+eBIbc7DZ835er6r6h9CwAg==.sig.ed25519"}')
class MockSHSSocket(SHSDuplexStream):
def __init__(self, *args, **kwargs):
super(MockSHSSocket, self).__init__()
self.input = []
self.output = []
self.is_connected = False
self._on_connect = []
def on_connect(self, cb):
self._on_connect.append(cb)
async def read(self):
if not self.input:
raise StopAsyncIteration
return self.input.pop(0)
def write(self, data):
self.output.append(data)
def feed(self, input):
self.input += input
def get_output(self):
while True:
if not self.output:
break
yield self.output.pop(0)
def disconnect(self):
self.is_connected = False
class MockSHSClient(MockSHSSocket):
async def connect(self):
self.is_connected = True
for cb in self._on_connect:
await cb()
class MockSHSServer(MockSHSSocket):
def listen(self):
self.is_connected = True
for cb in self._on_connect:
ensure_future(cb())
@pytest.fixture
def ps_client(event_loop):
return MockSHSClient()
@pytest.fixture
def ps_server(event_loop):
return MockSHSServer()
@pytest.mark.asyncio
async def test_on_connect(ps_server):
called = Event()
async def _on_connect():
called.set()
ps_server.on_connect(_on_connect)
ps_server.listen()
await called.wait()
assert ps_server.is_connected
@pytest.mark.asyncio
async def test_message_decoding(ps_client):
await ps_client.connect()
ps = PacketStream(ps_client)
assert ps.is_connected
ps_client.feed([
b'\n\x00\x00\x00\x9a\x00\x00\x04\xfb',
b'{"name":["createHistoryStream"],"args":[{"id":"@omgyp7Pnrw+Qm0I6T6Fh5VvnKmodMXwnxTIesW2DgMg=.ed25519",'
b'"seq":10,"live":true,"keys":false}],"type":"source"}'
])
messages = (await _collect_messages(ps))
assert len(messages) == 1
assert messages[0].type == PSMessageType.JSON
assert messages[0].body == {
'name': ['createHistoryStream'],
'args': [
{
'id': '@omgyp7Pnrw+Qm0I6T6Fh5VvnKmodMXwnxTIesW2DgMg=.ed25519',
'seq': 10,
'live': True,
'keys': False
}
],
'type': 'source'
}
@pytest.mark.asyncio
async def test_message_encoding(ps_client):
await ps_client.connect()
ps = PacketStream(ps_client)
assert ps.is_connected
ps.send({
'name': ['createHistoryStream'],
'args': [{
'id': "@1+Iwm79DKvVBqYKFkhT6fWRbAVvNNVH4F2BSxwhYmx8=.ed25519",
'seq': 1,
'live': False,
'keys': False
}],
'type': 'source'
}, stream=True)
header, body = list(ps_client.get_output())
assert header == b'\x0a\x00\x00\x00\xa6\x00\x00\x00\x01'
assert json.loads(body.decode('utf-8')) == {
"name": ["createHistoryStream"],
"args": [
{"id": "@1+Iwm79DKvVBqYKFkhT6fWRbAVvNNVH4F2BSxwhYmx8=.ed25519", "seq": 1, "live": False, "keys": False}
],
"type": "source"
}
@pytest.mark.asyncio
async def test_message_stream(ps_client, mocker):
await ps_client.connect()
ps = PacketStream(ps_client)
mocker.patch.object(ps, 'register_handler', wraps=ps.register_handler)
assert ps.is_connected
ps.send({
'name': ['createHistoryStream'],
'args': [{
'id': "@1+Iwm79DKvVBqYKFkhT6fWRbAVvNNVH4F2BSxwhYmx8=.ed25519",
'seq': 1,
'live': False,
'keys': False
}],
'type': 'source'
}, stream=True)
assert ps.req_counter == 2
assert ps.register_handler.call_count == 1
handler = list(ps._event_map.values())[0][1]
with patch.object(handler, 'process') as mock_process:
ps_client.feed([b'\n\x00\x00\x02\xc5\xff\xff\xff\xff', MSG_BODY_1])
msg = await ps.read()
assert mock_process.call_count == 1
# responses have negative req
assert msg.req == -1
assert msg.body['previous'] == '%KTGP6W8vF80McRAZHYDWuKOD0KlNyKSq6Gb42iuV7Iw=.sha256'
assert ps.req_counter == 2
stream_handler = ps.send({
'name': ['createHistoryStream'],
'args': [{
'id': "@1+Iwm79DKvVBqYKFkhT6fWRbAVvNNVH4F2BSxwhYmx8=.ed25519",
'seq': 1,
'live': False,
'keys': False
}],
'type': 'source'
}, stream=True)
assert ps.req_counter == 3
assert ps.register_handler.call_count == 2
handler = list(ps._event_map.values())[1][1]
with patch.object(handler, 'process', wraps=handler.process) as mock_process:
ps_client.feed([b'\n\x00\x00\x02\xc5\xff\xff\xff\xfe', MSG_BODY_1,
b'\x0e\x00\x00\x023\xff\xff\xff\xfe', MSG_BODY_2])
# execute both message polling and response handling loops
collected, handled = await gather(_collect_messages(ps), _collect_messages(stream_handler))
# No messages collected, since they're all responses
assert collected == []
assert mock_process.call_count == 2
for msg in handled:
# responses have negative req
assert msg.req == -2
@pytest.mark.asyncio
async def test_message_request(ps_server, mocker):
ps_server.listen()
ps = PacketStream(ps_server)
mocker.patch.object(ps, 'register_handler', wraps=ps.register_handler)
ps.send({
'name': ['whoami'],
'args': []
})
header, body = list(ps_server.get_output())
assert header == b'\x02\x00\x00\x00 \x00\x00\x00\x01'
assert json.loads(body.decode('utf-8')) == {"name": ["whoami"], "args": []}
assert ps.req_counter == 2
assert ps.register_handler.call_count == 1
handler = list(ps._event_map.values())[0][1]
with patch.object(handler, 'process') as mock_process:
ps_server.feed([b'\x02\x00\x00\x00>\xff\xff\xff\xff',
b'{"id":"@1+Iwm79DKvVBqYKFkhT6fWRbAVvNNVH4F2BSxwhYmx8=.ed25519"}'])
msg = await ps.read()
assert mock_process.call_count == 1
# responses have negative req
assert msg.req == -1
assert msg.body['id'] == '@1+Iwm79DKvVBqYKFkhT6fWRbAVvNNVH4F2BSxwhYmx8=.ed25519'
assert ps.req_counter == 2