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unicorn_binance_websocket_api_connection.py
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unicorn_binance_websocket_api_connection.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# File: unicorn_binance_websocket_api/unicorn_binance_websocket_api_connection.py
#
# Part of ‘UNICORN Binance WebSocket API’
# Project website: https://github.com/oliver-zehentleitner/unicorn-binance-websocket-api
# Documentation: https://oliver-zehentleitner.github.io/unicorn-binance-websocket-api
# PyPI: https://pypi.org/project/unicorn-binance-websocket-api/
#
# Author: Oliver Zehentleitner
# https://about.me/oliver-zehentleitner
#
# Copyright (c) 2019, Oliver Zehentleitner
# All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
from websockets import connect
import asyncio
import copy
import json
import logging
import socket
import ssl
import sys
import time
import websockets
class BinanceWebSocketApiConnection(object):
def __init__(self, handler_binance_websocket_api_manager, stream_id, channels, markets):
self.handler_binance_websocket_api_manager = handler_binance_websocket_api_manager
self.api_key = copy.deepcopy(self.handler_binance_websocket_api_manager.api_key)
self.api_secret = copy.deepcopy(self.handler_binance_websocket_api_manager.api_secret)
self.channels = copy.deepcopy(channels)
self.markets = copy.deepcopy(markets)
self.stream_id = copy.deepcopy(stream_id)
async def __aenter__(self):
if self.handler_binance_websocket_api_manager.is_stop_request(self.stream_id):
self.handler_binance_websocket_api_manager.stream_is_stopping(self.stream_id)
sys.exit(0)
uri = self.handler_binance_websocket_api_manager.create_websocket_uri(self.channels, self.markets,
self.stream_id, self.api_key,
self.api_secret)
if uri is False:
# cant get a valid URI, so this stream has to crash
error_msg = "Probably no internet connection?"
logging.critical("BinanceWebSocketApiConnection->await._conn.__aenter__(" + str(self.stream_id) + ", " +
str(self.channels) + ", " + str(self.markets) + ") - " + str(error_msg))
self.handler_binance_websocket_api_manager.stream_is_crashing(self.stream_id, str(error_msg))
self.handler_binance_websocket_api_manager.set_restart_request(self.stream_id)
sys.exit(1)
try:
if uri['code'] == -2014 or uri['code'] == -2015:
# cant get a valid listen_key, so this stream has to crash
logging.critical("BinanceWebSocketApiConnection->await._conn.__aenter__(" + str(self.stream_id) + ", " +
str(self.channels) + ", " + str(self.markets) + ") - " + str(uri['msg']))
try:
del self.handler_binance_websocket_api_manager.restart_requests[self.stream_id]
except KeyError:
pass
self.handler_binance_websocket_api_manager.stream_is_crashing(self.stream_id, str(uri['msg']))
sys.exit(1)
except KeyError:
pass
except TypeError:
pass
logging.debug("BinanceWebSocketApiConnection->__enter__(" + str(self.stream_id) + ", " + str(self.channels) +
", " + str(self.markets) + ")" + " connecting to " + str(uri))
self._conn = connect(uri, ping_interval=20, close_timeout=10,
extra_headers={'User-Agent': 'oliver-zehentleitner/unicorn-binance-websocket-api/' +
self.handler_binance_websocket_api_manager.version})
try:
try:
self.handler_binance_websocket_api_manager.websocket_list[self.stream_id] = await self._conn.__aenter__()
except websockets.exceptions.InvalidStatusCode as error_msg:
if "HTTP 429" in str(error_msg):
logging.error("BinanceWebSocketApiConnection->await._conn.__aenter__(" + str(self.stream_id) +
", " + str(self.channels) + ", " + str(self.markets) + ") " + str(error_msg))
self.handler_binance_websocket_api_manager.stream_is_crashing(self.stream_id, str(error_msg))
time.sleep(2)
self.handler_binance_websocket_api_manager.set_restart_request(self.stream_id)
sys.exit(1)
try:
for payload in self.handler_binance_websocket_api_manager.stream_list[self.stream_id]['payload']:
await self.send(json.dumps(payload, ensure_ascii=False))
except TypeError:
pass
self.handler_binance_websocket_api_manager.stream_list[self.stream_id]['status'] = "running"
self.handler_binance_websocket_api_manager.stream_list[self.stream_id]['has_stopped'] = False
try:
if self.handler_binance_websocket_api_manager.restart_requests[self.stream_id]['status'] == "restarted":
self.handler_binance_websocket_api_manager.increase_reconnect_counter(self.stream_id)
del self.handler_binance_websocket_api_manager.restart_requests[self.stream_id]
except KeyError:
pass
self.handler_binance_websocket_api_manager.set_heartbeat(self.stream_id)
except ConnectionResetError as error_msg:
logging.error("BinanceWebSocketApiConnection->await._conn.__aenter__(" + str(self.stream_id) + ", " +
str(self.channels) + ", " + str(self.markets) + ")" + " - ConnectionResetError - " +
str(error_msg))
except OSError as error_msg:
logging.error("BinanceWebSocketApiConnection->await._conn.__aenter__(" + str(self.stream_id) + ", " +
str(self.channels) + ", " + str(self.markets) + ")" + " - OSError "
"- " + str(error_msg))
except socket.gaierror as error_msg:
logging.critical("BinanceWebSocketApiConnection->await._conn.__aenter__(" + str(self.stream_id) + ", " +
str(self.channels) + ", " + str(self.markets) + ")" + " - No internet connection? "
"- " + str(error_msg))
self.handler_binance_websocket_api_manager.stream_is_crashing(self.stream_id, (str(error_msg) +
" - No internet connection?"))
self.handler_binance_websocket_api_manager.set_restart_request(self.stream_id)
sys.exit(1)
except websockets.exceptions.InvalidStatusCode as error_msg:
if "Status code not 101: 414" in str(error_msg):
self.handler_binance_websocket_api_manager.stream_is_crashing(self.stream_id, str(error_msg) +
" --> URI too long? ;)")
logging.critical("BinanceWebSocketApiConnection->await._conn.__aenter__(" + str(self.stream_id) + ", " +
str(self.channels) + ", " + str(self.markets) + ")" + " - URI Too Long? To many "
"streams in on socket? ;) - " + str(error_msg))
try:
self.handler_binance_websocket_api_manager.websocket_list[self.stream_id].close()
except KeyError:
pass
sys.exit(1)
elif "Status code not 101: 400" in str(error_msg):
logging.error("BinanceWebSocketApiConnection->await._conn.__aenter__(" + str(self.stream_id) + ", " +
str(self.channels) + ", " + str(self.markets) + ") " + str(error_msg))
elif "Status code not 101: 429" in str(error_msg):
logging.error("BinanceWebSocketApiConnection->await._conn.__aenter__(" + str(self.stream_id) + ", " +
str(self.channels) + ", " + str(self.markets) + ") " + str(error_msg))
self.handler_binance_websocket_api_manager.stream_is_crashing(self.stream_id, str(error_msg))
time.sleep(2)
self.handler_binance_websocket_api_manager.set_restart_request(self.stream_id)
sys.exit(1)
elif "Status code not 101: 500" in str(error_msg):
logging.critical("BinanceWebSocketApiConnection->await._conn.__aenter__(" + str(self.stream_id) + ", " +
str(self.channels) + ", " + str(self.markets) + ") " + str(error_msg))
self.handler_binance_websocket_api_manager.stream_is_crashing(self.stream_id, str(error_msg))
sys.exit(1)
else:
logging.critical("BinanceWebSocketApiConnection->await._conn.__aenter__(" + str(self.stream_id) + ", " +
str(self.channels) + ", " + str(self.markets) + ") " + str(error_msg))
try:
self.handler_binance_websocket_api_manager.websocket_list[self.stream_id].close()
except KeyError:
pass
self.handler_binance_websocket_api_manager.stream_is_crashing(self.stream_id, str(error_msg))
self.handler_binance_websocket_api_manager.set_restart_request(self.stream_id)
sys.exit(1)
except websockets.exceptions.ConnectionClosed as error_msg:
logging.info("BinanceWebSocketApiSocket->await._conn.__aenter__(" + str(self.stream_id) + ", " +
str(self.channels) + ", " + str(self.markets) + ") Exception ConnectionClosed "
"Info: " + str(error_msg))
if "WebSocket connection is closed: code = 1006" in str(error_msg):
self.handler_binance_websocket_api_manager.websocket_list[self.stream_id].close()
self.handler_binance_websocket_api_manager.stream_is_crashing(self.stream_id, str(error_msg))
sys.exit(1)
return self
async def __aexit__(self, *args, **kwargs):
try:
await self._conn.__aexit__(*args, **kwargs)
except AttributeError as error_msg:
logging.debug("binance_websocket_api_connection->__aexit__(*args, **kwargs): "
"AttributeError - " + str(error_msg))
try:
self.handler_binance_websocket_api_manager.websocket_list[self.stream_id].close()
logging.debug("binance_websocket_api_connection->__aexit__(*args, **kwargs): "
"AttributeError - close() - done!")
except KeyError as error_msg:
logging.debug("binance_websocket_api_connection->__aexit__(*args, **kwargs): "
"KeyError - " + str(error_msg))
except websockets.exceptions.ConnectionClosed as error_msg:
logging.critical("binance_websocket_api_connection->__aexit__(*args, **kwargs): "
"ConnectionClosed - " + str(error_msg))
self.handler_binance_websocket_api_manager.stream_is_stopping(self.stream_id)
if self.handler_binance_websocket_api_manager.is_stop_request(self.stream_id) is False:
self.handler_binance_websocket_api_manager.set_restart_request(self.stream_id)
sys.exit(0)
def close(self):
# used to close the stream
self.handler_binance_websocket_api_manager.stream_is_stopping(self.stream_id)
logging.info("binance_websocket_api_connection->close(" + str(self.stream_id) + ")")
self.handler_binance_websocket_api_manager.websocket_list[self.stream_id].close()
sys.exit(0)
async def receive(self):
# method to catch the data from the stream
self.handler_binance_websocket_api_manager.set_heartbeat(self.stream_id)
try:
received_data_json = await self.handler_binance_websocket_api_manager.websocket_list[self.stream_id].recv()
try:
if self.handler_binance_websocket_api_manager.restart_requests[self.stream_id]['status'] == "restarted":
self.handler_binance_websocket_api_manager.increase_reconnect_counter(self.stream_id)
del self.handler_binance_websocket_api_manager.restart_requests[self.stream_id]
except KeyError:
pass
if received_data_json is not None:
size = sys.getsizeof(received_data_json)
self.handler_binance_websocket_api_manager.increase_processed_receives_statistic(self.stream_id)
self.handler_binance_websocket_api_manager.add_total_received_bytes(size)
self.handler_binance_websocket_api_manager.increase_received_bytes_per_second(self.stream_id,
size)
return received_data_json
except RuntimeError as error_msg:
logging.debug("binance_websocket_api_connection->receive(" +
str(self.stream_id) + ") - RuntimeError - error_msg: " + str(error_msg))
sys.exit(1)
except ssl.SSLError as error_msg:
logging.debug("binance_websocket_api_connection->receive(" +
str(self.stream_id) + ") - ssl.SSLError - error_msg: " + str(error_msg))
except KeyError as error_msg:
logging.debug("binance_websocket_api_connection->receive(" +
str(self.stream_id) + ") - KeyError - error_msg: " + str(error_msg))
self.handler_binance_websocket_api_manager.stream_is_stopping(self.stream_id)
if self.handler_binance_websocket_api_manager.is_stop_request(self.stream_id) is False:
self.handler_binance_websocket_api_manager.set_restart_request(self.stream_id)
sys.exit(0)
except asyncio.base_futures.InvalidStateError as error_msg:
logging.critical("binance_websocket_api_connection->receive(" +
str(self.stream_id) + ") - asyncio.base_futures.InvalidStateError - error_msg: " +
str(error_msg) + " - Extra info: https://github.com/oliver-zehentleitner/unicorn-binance-"
"websocket-api/issues/18 - open an own issue if needed!")
self.handler_binance_websocket_api_manager.stream_is_stopping(self.stream_id)
if self.handler_binance_websocket_api_manager.is_stop_request(self.stream_id) is False:
self.handler_binance_websocket_api_manager.set_restart_request(self.stream_id)
sys.exit(0)
async def send(self, data):
# method to send data to the endpoint
try:
await self.handler_binance_websocket_api_manager.websocket_list[self.stream_id].send(data)
except KeyError:
pass