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