sanic/tests/test_request_timeout.py

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from json import JSONDecodeError
from sanic import Sanic
import asyncio
from sanic.response import text
from sanic.config import Config
import aiohttp
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from aiohttp import TCPConnector
from sanic.testing import SanicTestClient, HOST
try:
try:
# direct use
import packaging
version = packaging.version
except (ImportError, AttributeError):
# setuptools v39.0 and above.
try:
from setuptools.extern import packaging
except ImportError:
# Before setuptools v39.0
from pkg_resources.extern import packaging
version = packaging.version
except ImportError:
raise RuntimeError("The 'packaging' library is missing.")
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aiohttp_version = version.parse(aiohttp.__version__)
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class DelayableTCPConnector(TCPConnector):
class RequestContextManager(object):
def __new__(cls, req, delay):
cls = super(DelayableTCPConnector.RequestContextManager, cls).\
__new__(cls)
cls.req = req
cls.send_task = None
cls.resp = None
cls.orig_send = getattr(req, 'send')
cls.orig_start = None
cls.delay = delay
cls._acting_as = req
return cls
def __getattr__(self, item):
acting_as = self._acting_as
return getattr(acting_as, item)
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async def start(self, connection, read_until_eof=False):
if self.send_task is None:
raise RuntimeError("do a send() before you do a start()")
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resp = await self.send_task
self.send_task = None
self.resp = resp
self._acting_as = self.resp
self.orig_start = getattr(resp, 'start')
try:
if aiohttp_version >= version.parse("3.3.0"):
ret = await self.orig_start(connection)
else:
ret = await self.orig_start(connection, read_until_eof)
except Exception as e:
raise e
return ret
def close(self):
if self.resp is not None:
self.resp.close()
if self.send_task is not None:
self.send_task.cancel()
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async def delayed_send(self, *args, **kwargs):
req = self.req
if self.delay and self.delay > 0:
# sync_sleep(self.delay)
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await asyncio.sleep(self.delay)
t = req.loop.time()
print("sending at {}".format(t), flush=True)
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next(iter(args)) # first arg is connection
try:
return await self.orig_send(*args, **kwargs)
except Exception as e:
if aiohttp_version < version.parse("3.1.0"):
return aiohttp.ClientResponse(req.method, req.url)
kw = dict(
writer=None,
continue100=None,
timer=None,
request_info=None,
traces=[],
loop=req.loop,
session=None
)
if aiohttp_version < version.parse("3.3.0"):
kw['auto_decompress'] = None
return aiohttp.ClientResponse(req.method, req.url, **kw)
def _send(self, *args, **kwargs):
gen = self.delayed_send(*args, **kwargs)
task = self.req.loop.create_task(gen)
self.send_task = task
self._acting_as = task
return self
if aiohttp_version >= version.parse("3.1.0"):
# aiohttp changed the request.send method to async
async def send(self, *args, **kwargs):
return self._send(*args, **kwargs)
else:
send = _send
def __init__(self, *args, **kwargs):
_post_connect_delay = kwargs.pop('post_connect_delay', 0)
_pre_request_delay = kwargs.pop('pre_request_delay', 0)
super(DelayableTCPConnector, self).__init__(*args, **kwargs)
self._post_connect_delay = _post_connect_delay
self._pre_request_delay = _pre_request_delay
async def connect(self, req, *args, **kwargs):
d_req = DelayableTCPConnector.\
RequestContextManager(req, self._pre_request_delay)
conn = await super(DelayableTCPConnector, self).\
connect(req, *args, **kwargs)
if self._post_connect_delay and self._post_connect_delay > 0:
await asyncio.sleep(self._post_connect_delay,
loop=self._loop)
req.send = d_req.send
t = req.loop.time()
print("Connected at {}".format(t), flush=True)
return conn
class DelayableSanicTestClient(SanicTestClient):
def __init__(self, app, loop, request_delay=1):
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super(DelayableSanicTestClient, self).__init__(app)
self._request_delay = request_delay
self._loop = None
async def _local_request(self, method, uri, cookies=None, *args,
**kwargs):
if self._loop is None:
self._loop = asyncio.get_event_loop()
if uri.startswith(('http:', 'https:', 'ftp:', 'ftps://' '//')):
url = uri
else:
url = 'http://{host}:{port}{uri}'.format(
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host=HOST, port=self.port, uri=uri)
conn = DelayableTCPConnector(pre_request_delay=self._request_delay,
verify_ssl=False, loop=self._loop)
async with aiohttp.ClientSession(cookies=cookies, connector=conn,
loop=self._loop) as session:
# Insert a delay after creating the connection
# But before sending the request.
async with getattr(session, method.lower())(
url, *args, **kwargs) as response:
try:
response.text = await response.text()
except UnicodeDecodeError:
response.text = None
try:
response.json = await response.json()
except (JSONDecodeError,
UnicodeDecodeError,
aiohttp.ClientResponseError):
response.json = None
response.body = await response.read()
return response
Config.REQUEST_TIMEOUT = 0.6
request_timeout_default_app = Sanic('test_request_timeout_default')
request_no_timeout_app = Sanic('test_request_no_timeout')
@request_timeout_default_app.route('/1')
async def handler1(request):
return text('OK')
@request_no_timeout_app.route('/1')
async def handler2(request):
return text('OK')
@request_timeout_default_app.websocket('/ws1')
async def ws_handler1(request, ws):
await ws.send('OK')
def test_default_server_error_request_timeout():
client = DelayableSanicTestClient(request_timeout_default_app, None, 2)
request, response = client.get('/1')
assert response.status == 408
assert response.text == 'Error: Request Timeout'
def test_default_server_error_request_dont_timeout():
client = DelayableSanicTestClient(request_no_timeout_app, None, 0.2)
request, response = client.get('/1')
assert response.status == 200
assert response.text == 'OK'
def test_default_server_error_websocket_request_timeout():
headers={
'Upgrade': 'websocket',
'Connection': 'upgrade',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version': '13'
}
client = DelayableSanicTestClient(request_timeout_default_app, None, 2)
request, response = client.get('/ws1', headers=headers)
assert response.status == 408
assert response.text == 'Error: Request Timeout'