File size: 7,843 Bytes
15b8951 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 | import asyncio
import ssl
import unittest
from aioice import stun, turn
from .echoserver import run_echo_server
from .turnserver import run_turn_server
from .utils import asynctest, read_message
PROTOCOL_KWARGS = {
"username": "foo",
"password": "bar",
"lifetime": turn.DEFAULT_ALLOCATION_LIFETIME,
"channel_refresh_time": turn.DEFAULT_CHANNEL_REFRESH_TIME,
}
class DummyClientProtocol(asyncio.DatagramProtocol):
def __init__(self):
self.received = []
def datagram_received(self, data, addr):
self.received.append((data, addr))
class TurnClientTcpProtocolTest(unittest.TestCase):
def setUp(self):
class MockProtocol:
def get_extra_info(self, name):
return ("1.2.3.4", 1234)
self.protocol = turn.TurnClientTcpProtocol(("1.2.3.4", 1234), **PROTOCOL_KWARGS)
self.protocol.connection_made(MockProtocol())
def test_receive_stun_fragmented(self):
data = read_message("binding_request.bin")
self.protocol.data_received(data[0:10])
self.protocol.data_received(data[10:])
def test_receive_junk(self):
self.protocol.data_received(b"\x00" * 20)
def test_repr(self):
self.assertEqual(repr(self.protocol), "turn/tcp")
class TurnClientUdpProtocolTest(unittest.TestCase):
def setUp(self):
self.protocol = turn.TurnClientUdpProtocol(("1.2.3.4", 1234), **PROTOCOL_KWARGS)
def test_receive_junk(self):
self.protocol.datagram_received(b"\x00" * 20, ("1.2.3.4", 1234))
def test_repr(self):
self.assertEqual(repr(self.protocol), "turn/udp")
class TurnTest(unittest.TestCase):
@asynctest
async def test_tcp_transport(self):
await self._test_transport("tcp", "tcp_address")
@asynctest
async def test_tls_transport(self):
ssl_context = ssl.SSLContext(protocol=ssl.PROTOCOL_TLS_CLIENT)
ssl_context.check_hostname = False
ssl_context.verify_mode = ssl.CERT_NONE
await self._test_transport("tcp", "tls_address", ssl=ssl_context)
@asynctest
async def test_udp_transport(self):
await self._test_transport("udp", "udp_address")
async def _test_transport(self, transport, server_addr_attr, ssl=False):
await self._test_transport_ok(
transport=transport, server_addr_attr=server_addr_attr, ssl=ssl
)
await self._test_transport_ok_multi(
transport=transport, server_addr_attr=server_addr_attr, ssl=ssl
)
await self._test_transport_allocate_failure(
transport=transport, server_addr_attr=server_addr_attr, ssl=ssl
)
await self._test_transport_delete_failure(
transport=transport, server_addr_attr=server_addr_attr, ssl=ssl
)
async def _test_transport_ok(self, *, transport, server_addr_attr, ssl):
async with run_turn_server(realm="test", users={"foo": "bar"}) as turn_server:
transport, protocol = await turn.create_turn_endpoint(
DummyClientProtocol,
server_addr=getattr(turn_server, server_addr_attr),
username="foo",
password="bar",
channel_refresh_time=5,
lifetime=6,
ssl=ssl,
transport=transport,
)
self.assertIsNone(transport.get_extra_info("peername"))
self.assertIsNotNone(transport.get_extra_info("sockname"))
async with run_echo_server() as echo_server:
# bind channel, send ping, expect pong
transport.sendto(b"ping", echo_server.udp_address)
await asyncio.sleep(1)
self.assertEqual(
protocol.received, [(b"ping", echo_server.udp_address)]
)
# wait some more to allow allocation refresh
protocol.received.clear()
await asyncio.sleep(5)
# refresh channel, send ping, expect pong
transport.sendto(b"ping", echo_server.udp_address)
await asyncio.sleep(1)
self.assertEqual(
protocol.received, [(b"ping", echo_server.udp_address)]
)
# close
transport.close()
await asyncio.sleep(0)
async def _test_transport_ok_multi(self, *, transport, server_addr_attr, ssl):
async with run_turn_server(realm="test", users={"foo": "bar"}) as turn_server:
transport, protocol = await turn.create_turn_endpoint(
DummyClientProtocol,
server_addr=getattr(turn_server, server_addr_attr),
username="foo",
password="bar",
channel_refresh_time=5,
lifetime=6,
ssl=ssl,
transport=transport,
)
self.assertIsNone(transport.get_extra_info("peername"))
self.assertIsNotNone(transport.get_extra_info("sockname"))
# Bind channel, send ping, expect pong.
#
# We use different lengths to trigger both padded an unpadded
# ChannelData messages over TCP.
async with run_echo_server() as echo_server1:
async with run_echo_server() as echo_server2:
transport.sendto(b"ping", echo_server1.udp_address) # never padded
transport.sendto(b"ping11", echo_server1.udp_address)
transport.sendto(b"ping20", echo_server2.udp_address)
transport.sendto(b"ping21", echo_server2.udp_address)
await asyncio.sleep(1)
self.assertEqual(
sorted(protocol.received),
[
(b"ping", echo_server1.udp_address),
(b"ping11", echo_server1.udp_address),
(b"ping20", echo_server2.udp_address),
(b"ping21", echo_server2.udp_address),
],
)
# close
transport.close()
await asyncio.sleep(0)
async def _test_transport_allocate_failure(
self, *, transport, server_addr_attr, ssl
):
async with run_turn_server(realm="test", users={"foo": "bar"}) as turn_server:
# make the server reject the ALLOCATE request
turn_server.simulated_failure = (403, "Forbidden")
with self.assertRaises(stun.TransactionFailed) as cm:
await turn.create_turn_endpoint(
DummyClientProtocol,
server_addr=getattr(turn_server, server_addr_attr),
username="foo",
password="bar",
ssl=ssl,
transport=transport,
)
self.assertEqual(str(cm.exception), "STUN transaction failed (403 - Forbidden)")
async def _test_transport_delete_failure(self, *, transport, server_addr_attr, ssl):
async with run_turn_server(realm="test", users={"foo": "bar"}) as turn_server:
transport, protocol = await turn.create_turn_endpoint(
DummyClientProtocol,
server_addr=getattr(turn_server, server_addr_attr),
username="foo",
password="bar",
ssl=ssl,
transport=transport,
)
self.assertIsNone(transport.get_extra_info("peername"))
self.assertIsNotNone(transport.get_extra_info("sockname"))
# make the server reject the final REFRESH request
turn_server.simulated_failure = (403, "Forbidden")
# close client
transport.close()
await asyncio.sleep(0)
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