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import sys
import asyncio
import itertools
import socket
import os
import pytest
from postfix_mta_sts_resolver import netstring
from postfix_mta_sts_resolver.responder import STSSocketmapResponder
import postfix_mta_sts_resolver.utils as utils
from testdata import load_testdata
@pytest.fixture(scope="module")
async def responder(event_loop):
import postfix_mta_sts_resolver.utils as utils
cfg = utils.populate_cfg_defaults(None)
cfg["zones"]["test2"] = cfg["default_zone"]
cache = utils.create_cache(cfg['cache']['type'],
cfg['cache']['options'])
await cache.setup()
resp = STSSocketmapResponder(cfg, event_loop, cache)
await resp.start()
result = resp, cfg['host'], cfg['port']
yield result
await resp.stop()
await cache.teardown()
@pytest.fixture(scope="module")
async def unix_responder(event_loop):
import postfix_mta_sts_resolver.utils as utils
cfg = utils.populate_cfg_defaults({'path': '/tmp/mta-sts.sock', 'mode': 0o666})
cfg["zones"]["test2"] = cfg["default_zone"]
cache = utils.create_cache(cfg['cache']['type'],
cfg['cache']['options'])
await cache.setup()
resp = STSSocketmapResponder(cfg, event_loop, cache)
await resp.start()
result = resp, cfg['path']
yield result
await resp.stop()
await cache.teardown()
buf_sizes = [4096, 128, 16, 1]
reqresps = list(load_testdata('refdata'))
bufreq_pairs = tuple(itertools.product(reqresps, buf_sizes))
@pytest.mark.parametrize("params", bufreq_pairs)
@pytest.mark.asyncio
@pytest.mark.timeout(5)
async def test_responder(responder, params):
(request, response), bufsize = params
resp, host, port = responder
stream_reader = netstring.StreamReader()
string_reader = stream_reader.next_string()
reader, writer = await asyncio.open_connection(host, port)
try:
writer.write(netstring.encode(request))
res = b''
while True:
try:
part = string_reader.read()
except netstring.WantRead:
buf = await reader.read(bufsize)
assert buf
stream_reader.feed(buf)
else:
if not part:
break
res += part
assert res == response
finally:
writer.close()
@pytest.mark.parametrize("params", tuple(itertools.product(reqresps, buf_sizes)))
@pytest.mark.asyncio
@pytest.mark.timeout(5)
async def test_unix_responder(unix_responder, params):
(request, response), bufsize = params
resp, path = unix_responder
stream_reader = netstring.StreamReader()
string_reader = stream_reader.next_string()
assert os.stat(path).st_mode & 0o777 == 0o666
reader, writer = await asyncio.open_unix_connection(path)
try:
writer.write(netstring.encode(request))
res = b''
while True:
try:
part = string_reader.read()
except netstring.WantRead:
data = await reader.read(bufsize)
assert data
stream_reader.feed(data)
else:
if not part:
break
res += part
assert res == response
finally:
writer.close()
@pytest.mark.asyncio
@pytest.mark.timeout(5)
async def test_empty_dialog(responder):
resp, host, port = responder
reader, writer = await asyncio.open_connection(host, port)
writer.close()
@pytest.mark.asyncio
@pytest.mark.timeout(5)
async def test_corrupt_dialog(responder):
resp, host, port = responder
reader, writer = await asyncio.open_connection(host, port)
msg = netstring.encode(b'test good.loc')[:-1] + b'!'
writer.write(msg)
assert await reader.read() == b''
writer.close()
@pytest.mark.asyncio
@pytest.mark.timeout(5)
async def test_early_disconnect(responder):
resp, host, port = responder
reader, writer = await asyncio.open_connection(host, port)
writer.write(netstring.encode(b'test good.loc'))
writer.close()
@pytest.mark.asyncio
@pytest.mark.timeout(5)
async def test_cached(responder):
resp, host, port = responder
reader, writer = await asyncio.open_connection(host, port)
stream_reader = netstring.StreamReader()
writer.write(netstring.encode(b'test good.loc'))
writer.write(netstring.encode(b'test good.loc'))
answers = []
try:
for _ in range(2):
string_reader = stream_reader.next_string()
res = b''
while True:
try:
part = string_reader.read()
except netstring.WantRead:
data = await reader.read(4096)
assert data
stream_reader.feed(data)
else:
if not part:
break
res += part
answers.append(res)
assert answers[0] == answers[1]
finally:
writer.close()
@pytest.mark.asyncio
@pytest.mark.timeout(7)
async def test_fast_expire(responder):
resp, host, port = responder
reader, writer = await asyncio.open_connection(host, port)
stream_reader = netstring.StreamReader()
async def answer():
string_reader = stream_reader.next_string()
res = b''
while True:
try:
part = string_reader.read()
except netstring.WantRead:
data = await reader.read(4096)
assert data
stream_reader.feed(data)
else:
if not part:
break
res += part
return res
try:
writer.write(netstring.encode(b'test fast-expire.loc'))
answer_a = await answer()
await asyncio.sleep(2)
writer.write(netstring.encode(b'test fast-expire.loc'))
answer_b = await answer()
assert answer_a == answer_b == b'OK secure match=mail.loc servername=hostname'
finally:
writer.close()
@pytest.mark.parametrize("params", tuple(itertools.product(reqresps, buf_sizes)))
@pytest.mark.asyncio
@pytest.mark.timeout(5)
async def test_responder_with_custom_socket(event_loop, responder, params):
(request, response), bufsize = params
resp, host, port = responder
sock = await utils.create_custom_socket(host, 0, flags=0,
options=[(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)])
stream_reader = netstring.StreamReader()
string_reader = stream_reader.next_string()
await event_loop.run_in_executor(None, sock.connect, (host, port))
reader, writer = await asyncio.open_connection(sock=sock)
try:
writer.write(netstring.encode(request))
res = b''
while True:
try:
part = string_reader.read()
except netstring.WantRead:
data = await reader.read(bufsize)
assert data
stream_reader.feed(data)
else:
if not part:
break
res += part
assert res == response
finally:
writer.close()
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