async def parse(self):
"""Parse http request
Returns:
Request object, or None if no data received
Raises:
BadRequest: request headers invalid or incomplete
RequestHeaderFieldsTooLarge: request headers too large
RequestTimeout: read request headers timeout
RequestEntityTooLarge: request content-length too large
"""
# browsers may preconnect but didn't send request immediately
# keep-alive connection has similar behaviors
first_chunk = b''
async with timeout_after(self.keep_alive_timeout):
first_chunk = await self._recv()
if not first_chunk:
return None
# read request headers
try:
self._feed(first_chunk)
async with timeout_after(self.header_timeout) as is_timeout:
while not self._headers_completed:
if self._readed_size > self.max_header_size:
raise RequestHeaderFieldsTooLarge()
chunk = await self._recv()
self._feed(chunk)
if not chunk:
break
except httptools.HttpParserError as ex:
msg = 'Invalid request headers from %s'
LOG.debug(msg, self._address, exc_info=True)
raise BadRequest('Invalid request headers') from ex
if is_timeout:
raise RequestTimeout()
if not self._headers_completed:
LOG.debug('Incomplete request headers from %s', self._address)
raise BadRequest('Incomplete request headers')
# check content-length
if self.method in ['POST', 'PUT', 'PATCH']:
content_length = self._get_content_length()
if content_length > self.max_body_size:
raise RequestEntityTooLarge()
return RawRequest(
method=self.method,
url=self.url,
version=self.version,
headers=self.headers,
body=self._body_stream(),
remote_ip=self.remote_ip,
protocol=self.protocol,
keep_alive=self.keep_alive,
)
async def test_sleep_timeout():
begin = time.monotonic()
async with timeout_after(0.1) as is_timeout:
await sleep(10)
assert is_timeout
cost = time.monotonic() - begin
assert cost >= 0.1 and cost < 0.15
async def parse(self):
if not self._has_timeout():
await self._read_header()
else:
async with timeout_after(self.timeout) as is_timeout:
await self._read_header()
if is_timeout:
raise ReadTimeoutError()
if not self.headers_completed:
raise ProtocolError('incomplete response headers')
body_stream = self.body_stream()
decoder = self._get_decoder()
if decoder:
body_stream = _decompress(body_stream, decoder)
def stream(chunk_size=DEFAULT_BUFFER_SIZE):
self._set_current_buffer_size(chunk_size)
return body_stream
environ = dict(
version=self.version,
status=self.status,
reason=self.reason,
keep_alive=self.keep_alive,
headers=self.headers,
stream=stream,
)
return Response(**environ)
async def _body_stream(self):
"""
Read request body
Raises:
BadRequest: request body invalid or incomplete
RequestTimeout: read request body timeout
"""
self._buffer_size = self.body_buffer_size
if self._body_chunks:
yield self._take_body_chunks()
if self._completed:
return
async with timeout_after(self.body_timeout) as is_timeout:
try:
while not self._completed:
chunk = await self._recv()
self._feed(chunk)
if self._body_chunks:
yield self._take_body_chunks()
if not chunk:
break
except httptools.HttpParserError as ex:
msg = 'Invalid request body from %s'
LOG.debug(msg, self._address, exc_info=True)
raise BadRequest('Invalid request body') from ex
if is_timeout:
raise RequestTimeout()
if not self._completed:
LOG.debug('Incomplete request body from %s', self._address)
raise BadRequest('Incomplete request body')
async def test_task_timeout():
task = await spawn(sleep(10))
begin = time.monotonic()
async with timeout_after(0.1) as is_timeout:
await task.join()
assert is_timeout
cost = time.monotonic() - begin
assert cost >= 0.1 and cost < 0.15
async def body_stream(self):
if not self._has_timeout():
async for chunk in self._body_stream_impl():
yield chunk
else:
async with timeout_after(self.timeout) as is_timeout:
async for chunk in self._body_stream_impl():
yield chunk
if is_timeout:
raise ReadTimeoutError()
async def server(address):
sock = socket(AF_INET, SOCK_DGRAM)
sock.setsockopt(SOL_SOCKET, SO_REUSEADDR, True)
sock.bind(address)
results.append('recvfrom wait')
async with timeout_after(0.1) as is_timeout:
await sock.recvfrom(8192)
results.append('not here')
if is_timeout:
results.append('recvfrom timeout')
await sock.close()
async def server(address):
sock = socket(AF_INET, SOCK_STREAM)
sock.setsockopt(SOL_SOCKET, SO_REUSEADDR, True)
sock.bind(address)
sock.listen(1)
results.append('accept wait')
async with timeout_after(0.1) as is_timeout:
client, addr = await sock.accept()
results.append('not here')
if is_timeout:
results.append('accept timeout')
await sock.close()
async def test_timeout():
begin = time.monotonic()
task = await nio.spawn(nio.sleep(1))
async with nio.timeout_after(0.1) as is_timeout:
await task.join()
if is_timeout:
print('is_timeout')
await task.cancel()
else:
print('not is_timeout')
await task.join()
cost = time.monotonic() - begin
assert cost >= 0.1 and cost < 0.15
