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* v4.0.0rc1 Release
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1 @@ | ||
| __version__ = "3.3.1" | ||
| __version__ = "4.0.0rc1" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,82 +1,104 @@ | ||
| import json | ||
| import logging | ||
| import threading | ||
| from urllib.parse import urlparse | ||
| from twisted.internet import reactor, ssl | ||
| from twisted.internet.error import ReactorAlreadyRunning | ||
| from autobahn.twisted.websocket import WebSocketClientFactory, connectWS | ||
| from binance.websocket.binance_client_protocol import BinanceClientProtocol | ||
| from binance.websocket.binance_client_factory import BinanceClientFactory | ||
| from websocket import ( | ||
| ABNF, | ||
| create_connection, | ||
| WebSocketException, | ||
| WebSocketConnectionClosedException, | ||
| ) | ||
|
|
||
|
|
||
| class BinanceSocketManager(threading.Thread): | ||
| def __init__(self, stream_url): | ||
| def __init__( | ||
| self, | ||
| stream_url, | ||
| on_message=None, | ||
| on_open=None, | ||
| on_close=None, | ||
| on_error=None, | ||
| on_ping=None, | ||
| on_pong=None, | ||
| logger=None, | ||
| ): | ||
| threading.Thread.__init__(self) | ||
|
|
||
| self.factories = {} | ||
| self._connected_event = threading.Event() | ||
| if not logger: | ||
| logger = logging.getLogger(__name__) | ||
| self.logger = logger | ||
| self.stream_url = stream_url | ||
| self._conns = {} | ||
| self._user_callback = None | ||
|
|
||
| def _start_socket( | ||
| self, stream_name, payload, callback, is_combined=False, is_live=True | ||
| ): | ||
| if stream_name in self._conns: | ||
| return False | ||
|
|
||
| if is_combined: | ||
| factory_url = self.stream_url + "/stream" | ||
| else: | ||
| factory_url = self.stream_url + "/ws" | ||
|
|
||
| if not is_live: | ||
| payload_obj = json.loads(payload.decode("utf8")) | ||
|
|
||
| if is_combined: | ||
| factory_url = factory_url + "?streams=" + payload_obj["params"] | ||
| else: | ||
| factory_url = factory_url + "/" + payload_obj["params"] | ||
| payload = None | ||
|
|
||
| logging.info("Connection with URL: {}".format(factory_url)) | ||
| self.on_message = on_message | ||
| self.on_open = on_open | ||
| self.on_close = on_close | ||
| self.on_ping = on_ping | ||
| self.on_pong = on_pong | ||
| self.on_error = on_error | ||
| self.create_ws_connection() | ||
|
|
||
| factory = BinanceClientFactory(factory_url, payload=payload) | ||
| factory.base_client = self | ||
| factory.protocol = BinanceClientProtocol | ||
| factory.setProtocolOptions( | ||
| openHandshakeTimeout=5, autoPingInterval=300, autoPingTimeout=5 | ||
| def create_ws_connection(self): | ||
| self.logger.debug( | ||
| "Creating connection with WebSocket Server: %s", self.stream_url | ||
| ) | ||
| factory.callback = callback | ||
| self.factories[stream_name] = factory | ||
| reactor.callFromThread(self.add_connection, stream_name, self.stream_url) | ||
| self.ws = create_connection(self.stream_url) | ||
| self.logger.debug( | ||
| "WebSocket connection has been established: %s", self.stream_url | ||
| ) | ||
| self._callback(self.on_open) | ||
|
|
||
| def add_connection(self, stream_name, url): | ||
| if not url.startswith("wss://"): | ||
| raise ValueError("expected wss:// URL prefix") | ||
| def run(self): | ||
| self.read_data() | ||
|
|
||
| factory = self.factories[stream_name] | ||
| options = ssl.optionsForClientTLS(hostname=urlparse(url).hostname) | ||
| self._conns[stream_name] = connectWS(factory, options) | ||
| def send_message(self, message): | ||
| self.logger.debug("Sending message to Binance WebSocket Server: %s", message) | ||
| self.ws.send(message) | ||
|
|
||
| def stop_socket(self, conn_key): | ||
| if conn_key not in self._conns: | ||
| return | ||
| def ping(self): | ||
| self.ws.ping() | ||
|
|
||
| # disable reconnecting if we are closing | ||
| self._conns[conn_key].factory = WebSocketClientFactory(self.stream_url) | ||
| self._conns[conn_key].disconnect() | ||
| del self._conns[conn_key] | ||
| def read_data(self): | ||
| data = "" | ||
| while True: | ||
| try: | ||
| op_code, frame = self.ws.recv_data_frame(True) | ||
| except WebSocketException as e: | ||
| if isinstance(e, WebSocketConnectionClosedException): | ||
| self.logger.error("Lost websocket connection") | ||
| else: | ||
| self.logger.error("Websocket exception: {}".format(e)) | ||
| raise e | ||
| except Exception as e: | ||
| self.logger.error("Exception in read_data: {}".format(e)) | ||
| raise e | ||
|
|
||
| def run(self): | ||
| try: | ||
| reactor.run(installSignalHandlers=False) | ||
| except ReactorAlreadyRunning: | ||
| # Ignore error about reactor already running | ||
| pass | ||
| if op_code == ABNF.OPCODE_CLOSE: | ||
| self.logger.warning( | ||
| "CLOSE frame received, closing websocket connection" | ||
| ) | ||
| self._callback(self.on_close) | ||
| break | ||
| elif op_code == ABNF.OPCODE_PING: | ||
| self._callback(self.on_ping, frame.data) | ||
| self.ws.pong("") | ||
| self.logger.debug("Received Ping; PONG frame sent back") | ||
| elif op_code == ABNF.OPCODE_PONG: | ||
| self.logger.debug("Received PONG frame") | ||
| self._callback(self.on_pong) | ||
| else: | ||
| data = frame.data | ||
| if op_code == ABNF.OPCODE_TEXT: | ||
| data = data.decode("utf-8") | ||
| self._callback(self.on_message, data) | ||
|
|
||
| def close(self): | ||
| keys = set(self._conns.keys()) | ||
| for key in keys: | ||
| self.stop_socket(key) | ||
| self._conns = {} | ||
| if not self.ws.connected: | ||
| self.logger.warn("Websocket already closed") | ||
| else: | ||
| self.ws.send_close() | ||
| return | ||
|
|
||
| def _callback(self, callback, *args): | ||
| if callback: | ||
| try: | ||
| callback(self, *args) | ||
| except Exception as e: | ||
| self.logger.error("Error from callback {}: {}".format(callback, e)) | ||
| if self.on_error: | ||
| self.on_error(self, e) |
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