async def test_can_handle_message_with_no_subscription(self):
frame = Frame('MESSAGE', {
'subscription': '123',
'message-id': '321'
}, 'blah')
handler = CoroutineMock()
frame_handler = Mock()
frame_handler.get.return_value = None
stomp = StompReader(frame_handler, self.loop)
await stomp._handle_message(frame)
handler.assert_not_called()
def test_cannot_ack_an_auto_ack_frame(self):
self.stomp._protocol.subscribe = Mock()
self.stomp._protocol.ack = Mock()
self.stomp.subscribe("/queue/test", auto_ack=True)
self.assertEqual(len(self.stomp._subscriptions), 1)
frame = Frame("MESSAGE", {"subscription": "1"}, "data")
with self.assertLogs() as cm:
self.stomp.ack(frame)
self.assertIn(
"WARNING:aiostomp:Auto ack/nack is enabled. Ignoring call.",
cm.output)
self.stomp._protocol.ack.assert_not_called()
async def test_can_handle_message(self):
frame = Frame("MESSAGE", {
"subscription": "123",
"message-id": "321"
}, "blah")
handler = CoroutineMock()
subscription = Subscription("123", 1, "auto", {}, handler)
frame_handler = Mock()
frame_handler.get.return_value = subscription
stomp = StompReader(frame_handler, self.loop)
await stomp._handle_message(frame)
handler.assert_called_with(frame, frame.body)
async def test_can_handle_message(self):
frame = Frame('MESSAGE', {
'subscription': '123',
'message-id': '321'
}, 'blah')
handler = CoroutineMock()
subscription = Subscription('123', 1, 'auto', {}, handler)
frame_handler = Mock()
frame_handler.get.return_value = subscription
stomp = StompReader(frame_handler, self.loop)
await stomp._handle_message(frame)
handler.assert_called_with(frame, frame.body)
def test_cannot_ack_an_auto_ack_frame(self):
self.stomp._protocol.subscribe = Mock()
self.stomp._protocol.ack = Mock()
self.stomp.subscribe('/queue/test', auto_ack=True)
self.assertEqual(len(self.stomp._subscriptions), 1)
frame = Frame('MESSAGE', {'subscription': '1'}, 'data')
with self.assertLogs() as cm:
self.stomp.ack(frame)
self.assertIn(
'WARNING:aiostomp:Auto ack/nack is enabled. Ignoring call.',
cm.output)
self.stomp._protocol.ack.assert_not_called()
def _process_frame(self, data):
command, remaining = data.split(b'\n', 1)
command = self._decode(command)
raw_headers, remaining = remaining.split(b'\n\n', 1)
raw_headers = self._decode(raw_headers)
headers = dict([l.split(':', 1) for l in raw_headers.split('\n')])
body = None
# Only SEND, MESSAGE and ERROR frames can have body
if remaining and command in ('SEND', 'MESSAGE', 'ERROR'):
if 'content-length' in headers:
body = remaining[:int(headers['content-length'])]
else:
body = remaining
self._frames_ready.append(Frame(command, headers=headers, body=body))
async def test_can_handle_connected_frame_with_heartbeat_disabled(
self, heartbeater_klass_mock):
frame = Frame("CONNECTED", {"heart-beat": "1000,1000"}, "{}")
heartbeater_mock = heartbeater_klass_mock.return_value
heartbeater_mock.start = CoroutineMock()
stomp = StompReader(None,
self.loop,
heartbeat={
"enabled": False,
"cx": 0,
"cy": 0
})
stomp._transport = Mock()
await stomp._handle_connect(frame)
heartbeater_klass_mock.assert_not_called
async def test_can_handle_connected_frame_with_heartbeat_disabled(
self, heartbeater_klass_mock):
frame = Frame('CONNECTED', {'heart-beat': '1000,1000'}, '{}')
heartbeater_mock = heartbeater_klass_mock.return_value
heartbeater_mock.start = CoroutineMock()
stomp = StompReader(None,
self.loop,
heartbeat={
'enabled': False,
'cx': 0,
'cy': 0
})
stomp._transport = Mock()
await stomp._handle_connect(frame)
heartbeater_klass_mock.assert_not_called
async def test_can_handle_error_frame(self, logger_mock):
frame = Frame('ERROR', {'message': 'Invalid error, blah, blah, blah'},
'Detail Error: blah, blahh-line-a')
frame_handler = Mock()
frame_handler._on_error = CoroutineMock()
stomp = StompReader(frame_handler, self.loop)
await stomp._handle_error(frame)
frame_handler._on_error.assert_called_once()
self.assertTrue(
isinstance(frame_handler._on_error.call_args[0][0], StompError))
logger_mock.error.assert_called_with(
'Received error: Invalid error, blah, blah, blah')
logger_mock.debug.assert_called_with(
'Error details: Detail Error: blah, blahh-line-a')
async def test_can_handle_message_can_nack(self, send_frame_mock):
frame = Frame("MESSAGE", {
"subscription": "123",
"message-id": "321"
}, "blah")
handler = CoroutineMock()
handler.return_value = False
subscription = Subscription("123", 1, "client-individual", {}, handler)
frame_handler = Mock()
frame_handler.get.return_value = subscription
stomp = StompReader(frame_handler, self.loop)
await stomp._handle_message(frame)
handler.assert_called_with(frame, frame.body)
send_frame_mock.assert_called_with("NACK", {
"subscription": "123",
"message-id": "321"
})
async def test_can_handle_message_can_nack(self, send_frame_mock):
frame = Frame('MESSAGE', {
'subscription': '123',
'message-id': '321'
}, 'blah')
handler = CoroutineMock()
handler.return_value = False
subscription = Subscription('123', 1, 'client-individual', {}, handler)
frame_handler = Mock()
frame_handler.get.return_value = subscription
stomp = StompReader(frame_handler, self.loop)
await stomp._handle_message(frame)
handler.assert_called_with(frame, frame.body)
send_frame_mock.assert_called_with('NACK', {
'subscription': '123',
'message-id': '321'
})
def _feed_data(self, data):
if data is None:
return None
if not self._pending_parts and data.startswith(self.HEART_BEAT):
self._frames_ready.append(Frame('HEARTBEAT', headers={}, body=''))
data = data[1:]
if data:
return data
before_eof, sep, after_eof = data.partition(self.EOF)
if before_eof:
self._pending_parts.append(before_eof)
if sep:
frame_data = b''.join(self._pending_parts)
self._pending_parts = []
self._process_frame(frame_data)
if after_eof:
return after_eof
def _feed_data(self, data):
if data.startswith(self.HEART_BEAT) and not self._pending_parts:
self._frames_ready.append(Frame('HEARTBEAT', headers={}, body=''))
data = data[1:]
if not data:
return
self._pending_parts.append(data)
extra_data, partial_data = self._parse_data(b''.join(
self._pending_parts))
if partial_data:
self._pending_parts = [partial_data]
else:
self._pending_parts = []
# Check if the frame is incomplete or has
# additional data
if extra_data:
self._pending_parts = []
return extra_data
def feed_data(self, inp: bytes) -> None:
read_size = len(inp)
data: Deque[int] = deque(inp)
i = 0
while i < read_size:
i += 1
b = bytes([data.popleft()])
if (not self.processed_headers and self.previous_byte == self.EOF
and b == self.EOF):
continue
if not self.processed_headers:
if self.awaiting_command and b == b"\n":
self._frames_ready.append(
Frame("HEARTBEAT", headers={}, body=None))
continue
else:
self.awaiting_command = False
self.current_command.append(b[0])
if b == b"\n" and (self.previous_byte == b"\n"
or ends_with_crlf(self.current_command)):
try:
self.action = self._parse_action(self.current_command)
self.headers = self._parse_headers(
self.current_command)
logger.debug("Parsed action %s", self.action)
if (self.action in ("SEND", "MESSAGE", "ERROR")
and "content-length" in self.headers):
self.content_length = int(
self.headers["content-length"])
else:
self.content_length = -1
except Exception:
self.current_command.clear()
return
self.processed_headers = True
self.current_command.clear()
else:
if self.content_length == -1:
if b == self.EOF:
self.process_command()
else:
self.current_command.append(b[0])
if len(self.current_command) > self.MAX_DATA_LENGTH:
# error
return
else:
if self.read_length == self.content_length:
self.process_command()
self.read_length = 0
else:
self.read_length += 1
self.current_command.append(b[0])
self.previous_byte = b
def _parse_data(self, data):
if not self._intermediate_frame:
command, data = data.split(b'\n', 1)
command = self._decode(command)
self._intermediate_frame = {'command': command}
if 'headers' not in self._intermediate_frame:
headers_body = data.split(b'\n\n', 1)
if len(headers_body) < 2:
return None, data
raw_headers, data = headers_body
raw_headers = self._decode(raw_headers)
headers = dict([l.split(':', 1) for l in raw_headers.split('\n')])
self._intermediate_frame['headers'] = headers
# After parsing the headers if any, there must be EOF to signal
# end of frame, failing which return all data
if not data:
return None, None
if self._intermediate_frame['command'] not in\
('SEND', 'MESSAGE', 'ERROR'):
self._intermediate_frame['body'] = None
self._frames_ready.append(Frame(**self._intermediate_frame))
self._intermediate_frame = None
# For commands not allowed to have body, discard all data
# between headers and the end of frame
_, extra = data.split(self.EOF, 1)
return extra, None
# Only SEND, MESSAGE and ERROR frames can have body
headers = self._intermediate_frame['headers']
if 'content-length' in headers:
content_length = int(headers['content-length'])
if 'body' not in self._intermediate_frame:
self._intermediate_frame['body'] = b''
existing_length = len(self._intermediate_frame['body'])
missing_length = content_length - existing_length
# Wait till the entire body is received
if len(data) <= missing_length:
self._intermediate_frame['body'] += data
return None, None
self._intermediate_frame['body'] += data[:missing_length]
self._frames_ready.append(Frame(**self._intermediate_frame))
self._intermediate_frame = None
# Split at the end of the frame which is at the end of the body
# and return the rest for further processing
_, extra = data[missing_length:].split(self.EOF, 1)
return extra, None
else:
if 'body' not in self._intermediate_frame:
self._intermediate_frame['body'] = b''
# Try to find the end of the frame
body, sep, extra = data.partition(self.EOF)
# If end of frame is not found, return the entire data
# as partial data to be processed when the rest of the frame
# arrives
if not sep:
self._intermediate_frame['body'] += data
return None, None
self._intermediate_frame['body'] += body
self._frames_ready.append(Frame(**self._intermediate_frame))
self._intermediate_frame = None
return extra, None
def feed_data(self, data):
read_size = len(data)
data = deque(data)
i = 0
while i < read_size:
i += 1
b = bytes([data.popleft()])
if (not self.processed_headers and self.previous_byte == self.EOF
and b == self.EOF):
continue
if not self.processed_headers:
if self.awaiting_command and b == b'\n':
self._frames_ready.append(
Frame('HEARTBEAT', headers={}, body=''))
continue
else:
self.awaiting_command = False
self.current_command.append(b)
if b == b'\n' and (self.previous_byte == b'\n' or
self.ends_with_crlf(self.current_command)):
try:
self.action = self._parse_action(self.current_command)
self.headers = self._parse_headers(
self.current_command)
if (self.action in ('SEND', 'MESSAGE', 'ERROR')
and 'content-length' in self.headers):
self.content_length = int(
self.headers['content-length'])
else:
self.content_length = -1
except Exception:
self.current_command.clear()
return
self.processed_headers = True
self.current_command.clear()
else:
if self.content_length == -1:
if b == self.EOF:
self.process_command()
else:
self.current_command.append(b)
if len(self.current_command) > self.MAX_DATA_LENGTH:
# error
return
else:
if self.read_length == self.content_length:
self.process_command()
self.read_length = 0
else:
self.read_length += 1
self.current_command.append(b)
self.previous_byte = b
