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import asyncio
import base64
import hashlib
import os
import socket
import unittest
import aiohttp
from aiohttp import web, websocket
WS_KEY = b"258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
class TestWebWebSocketFunctional(unittest.TestCase):
def setUp(self):
self.loop = asyncio.new_event_loop()
asyncio.set_event_loop(None)
def tearDown(self):
self.loop.close()
def find_unused_port(self):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('127.0.0.1', 0))
port = s.getsockname()[1]
s.close()
return port
@asyncio.coroutine
def create_server(self, method, path, handler):
app = web.Application(loop=self.loop)
app.router.add_route(method, path, handler)
port = self.find_unused_port()
srv = yield from self.loop.create_server(
app.make_handler(), '127.0.0.1', port)
url = "http://127.0.0.1:{}".format(port) + path
self.addCleanup(srv.close)
return app, srv, url
@asyncio.coroutine
def connect_ws(self, url, protocol='chat'):
sec_key = base64.b64encode(os.urandom(16))
conn = aiohttp.TCPConnector(loop=self.loop)
self.addCleanup(conn.close)
# send request
response = yield from aiohttp.request(
'get', url,
headers={
'UPGRADE': 'WebSocket',
'CONNECTION': 'Upgrade',
'SEC-WEBSOCKET-VERSION': '13',
'SEC-WEBSOCKET-PROTOCOL': protocol,
'SEC-WEBSOCKET-KEY': sec_key.decode(),
},
connector=conn,
loop=self.loop)
self.addCleanup(response.close, True)
self.assertEqual(101, response.status)
self.assertEqual(response.headers.get('upgrade', '').lower(),
'websocket')
self.assertEqual(response.headers.get('connection', '').lower(),
'upgrade')
key = response.headers.get('sec-websocket-accept', '').encode()
match = base64.b64encode(hashlib.sha1(sec_key + WS_KEY).digest())
self.assertEqual(key, match)
# switch to websocket protocol
connection = response.connection
reader = connection.reader.set_parser(websocket.WebSocketParser)
writer = websocket.WebSocketWriter(connection.writer)
return response, reader, writer
def test_send_recv_text(self):
closed = asyncio.Future(loop=self.loop)
@asyncio.coroutine
def handler(request):
ws = web.WebSocketResponse()
ws.start(request)
msg = yield from ws.receive_str()
ws.send_str(msg+'/answer')
yield from ws.close()
closed.set_result(1)
return ws
@asyncio.coroutine
def go():
_, _, url = yield from self.create_server('GET', '/', handler)
resp, reader, writer = yield from self.connect_ws(url)
writer.send('ask')
msg = yield from reader.read()
self.assertEqual(msg.tp, websocket.MSG_TEXT)
self.assertEqual('ask/answer', msg.data)
msg = yield from reader.read()
self.assertEqual(msg.tp, websocket.MSG_CLOSE)
self.assertEqual(msg.data, 1000)
self.assertEqual(msg.extra, '')
writer.close()
yield from closed
resp.close()
self.loop.run_until_complete(go())
def test_send_recv_bytes(self):
closed = asyncio.Future(loop=self.loop)
@asyncio.coroutine
def handler(request):
ws = web.WebSocketResponse()
ws.start(request)
msg = yield from ws.receive_bytes()
ws.send_bytes(msg+b'/answer')
yield from ws.close()
closed.set_result(1)
return ws
@asyncio.coroutine
def go():
_, _, url = yield from self.create_server('GET', '/', handler)
resp, reader, writer = yield from self.connect_ws(url)
writer.send(b'ask', binary=True)
msg = yield from reader.read()
self.assertEqual(msg.tp, websocket.MSG_BINARY)
self.assertEqual(b'ask/answer', msg.data)
msg = yield from reader.read()
self.assertEqual(msg.tp, websocket.MSG_CLOSE)
self.assertEqual(msg.data, 1000)
self.assertEqual(msg.extra, '')
writer.close()
yield from closed
resp.close()
self.loop.run_until_complete(go())
def test_auto_pong_with_closing_by_peer(self):
closed = asyncio.Future(loop=self.loop)
@asyncio.coroutine
def handler(request):
ws = web.WebSocketResponse()
ws.start(request)
yield from ws.receive()
msg = yield from ws.receive()
self.assertEqual(msg.tp, web.MsgType.close)
self.assertEqual(msg.data, 1000)
self.assertEqual(msg.extra, 'exit message')
closed.set_result(None)
return ws
@asyncio.coroutine
def go():
_, _, url = yield from self.create_server('GET', '/', handler)
resp, reader, writer = yield from self.connect_ws(url)
writer.ping()
writer.send('ask')
msg = yield from reader.read()
self.assertEqual(msg.tp, websocket.MSG_PONG)
writer.close(1000, 'exit message')
yield from closed
resp.close()
self.loop.run_until_complete(go())
def test_ping(self):
closed = asyncio.Future(loop=self.loop)
@asyncio.coroutine
def handler(request):
ws = web.WebSocketResponse()
ws.start(request)
ws.ping('data')
yield from ws.receive()
closed.set_result(None)
return ws
@asyncio.coroutine
def go():
_, _, url = yield from self.create_server('GET', '/', handler)
resp, reader, writer = yield from self.connect_ws(url)
msg = yield from reader.read()
self.assertEqual(msg.tp, websocket.MSG_PING)
self.assertEqual(msg.data, b'data')
writer.pong()
writer.close(2, 'exit message')
yield from closed
resp.close()
self.loop.run_until_complete(go())
def test_client_ping(self):
closed = asyncio.Future(loop=self.loop)
@asyncio.coroutine
def handler(request):
ws = web.WebSocketResponse()
ws.start(request)
yield from ws.receive()
closed.set_result(None)
return ws
@asyncio.coroutine
def go():
_, _, url = yield from self.create_server('GET', '/', handler)
resp, reader, writer = yield from self.connect_ws(url)
writer.ping('data')
msg = yield from reader.read()
self.assertEqual(msg.tp, websocket.MSG_PONG)
self.assertEqual(msg.data, b'data')
writer.pong()
writer.close()
yield from closed
resp.close()
self.loop.run_until_complete(go())
def test_pong(self):
closed = asyncio.Future(loop=self.loop)
@asyncio.coroutine
def handler(request):
ws = web.WebSocketResponse(autoping=False)
ws.start(request)
msg = yield from ws.receive()
self.assertEqual(msg.tp, web.MsgType.ping)
ws.pong('data')
msg = yield from ws.receive()
self.assertEqual(msg.tp, web.MsgType.close)
self.assertEqual(msg.data, 1000)
self.assertEqual(msg.extra, 'exit message')
closed.set_result(None)
return ws
@asyncio.coroutine
def go():
_, _, url = yield from self.create_server('GET', '/', handler)
resp, reader, writer = yield from self.connect_ws(url)
writer.ping('data')
msg = yield from reader.read()
self.assertEqual(msg.tp, websocket.MSG_PONG)
self.assertEqual(msg.data, b'data')
writer.close(1000, 'exit message')
yield from closed
resp.close()
self.loop.run_until_complete(go())
def test_change_status(self):
closed = asyncio.Future(loop=self.loop)
@asyncio.coroutine
def handler(request):
ws = web.WebSocketResponse()
ws.set_status(200)
self.assertEqual(200, ws.status)
ws.start(request)
self.assertEqual(101, ws.status)
yield from ws.close()
closed.set_result(None)
return ws
@asyncio.coroutine
def go():
_, _, url = yield from self.create_server('GET', '/', handler)
resp, _, writer = yield from self.connect_ws(url)
writer.close()
yield from closed
resp.close()
self.loop.run_until_complete(go())
def test_handle_protocol(self):
closed = asyncio.Future(loop=self.loop)
@asyncio.coroutine
def handler(request):
ws = web.WebSocketResponse(protocols=('foo', 'bar'))
ws.start(request)
yield from ws.close()
self.assertEqual('bar', ws.protocol)
closed.set_result(None)
return ws
@asyncio.coroutine
def go():
_, _, url = yield from self.create_server('GET', '/', handler)
resp, _, writer = yield from self.connect_ws(url, 'eggs, bar')
writer.close()
yield from closed
resp.close()
self.loop.run_until_complete(go())
def test_server_close_handshake(self):
closed = asyncio.Future(loop=self.loop)
@asyncio.coroutine
def handler(request):
ws = web.WebSocketResponse(protocols=('foo', 'bar'))
ws.start(request)
yield from ws.close()
closed.set_result(None)
return ws
@asyncio.coroutine
def go():
_, _, url = yield from self.create_server('GET', '/', handler)
resp, reader, writer = yield from self.connect_ws(url, 'eggs, bar')
msg = yield from reader.read()
self.assertEqual(msg.tp, websocket.MSG_CLOSE)
writer.close()
yield from closed
resp.close()
self.loop.run_until_complete(go())
def test_client_close_handshake(self):
closed = asyncio.Future(loop=self.loop)
@asyncio.coroutine
def handler(request):
ws = web.WebSocketResponse(
autoclose=False, protocols=('foo', 'bar'))
ws.start(request)
msg = yield from ws.receive()
self.assertEqual(msg.tp, web.MsgType.close)
self.assertFalse(ws.closed)
yield from ws.close()
self.assertTrue(ws.closed)
self.assertEqual(ws.close_code, 1007)
msg = yield from ws.receive()
self.assertEqual(msg.tp, web.MsgType.closed)
closed.set_result(None)
return ws
@asyncio.coroutine
def go():
_, _, url = yield from self.create_server('GET', '/', handler)
resp, reader, writer = yield from self.connect_ws(url, 'eggs, bar')
writer.close(code=1007)
msg = yield from reader.read()
self.assertEqual(msg.tp, websocket.MSG_CLOSE)
yield from closed
resp.close()
self.loop.run_until_complete(go())
def test_server_close_handshake_server_eats_client_messages(self):
closed = asyncio.Future(loop=self.loop)
@asyncio.coroutine
def handler(request):
ws = web.WebSocketResponse(protocols=('foo', 'bar'))
ws.start(request)
yield from ws.close()
closed.set_result(None)
return ws
@asyncio.coroutine
def go():
_, _, url = yield from self.create_server('GET', '/', handler)
response, reader, writer = yield from self.connect_ws(
url, 'eggs, bar')
msg = yield from reader.read()
self.assertEqual(msg.tp, websocket.MSG_CLOSE)
writer.send('text')
writer.send(b'bytes', binary=True)
writer.ping()
writer.close()
yield from closed
response.close()
self.loop.run_until_complete(go())
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