标签：tin eve ssl cert lse 2.7 server turn pre web
websocket-client module is WebSocket client for python. This provide the low level APIs for WebSocket. All APIs are the synchronous functions.
websocket-client supports only hybi-13.
- LGPL
This module is tested on Python 2.7 and Python 3.4+.
Type “python setup.py install” or “pip install websocket-client” to install.
Caution!
from v0.16.0, we can install by “pip install websocket-client” for Python 3.
This module depends on
- six
- backports.ssl_match_hostname for Python 2.x
“send” method is too slow on pure python. If you want to get better performace, please install numpy or wsaccel. You can get the best performance from numpy.
Now, we support Python 3 on single source code from version 0.14.0. Thanks, @battlemidget and @ralphbean.
Support websocket access via http proxy. The proxy server must allow “CONNECT” method to websocket port. Default squid setting is “ALLOWED TO CONNECT ONLY HTTPS PORT”.
Current implementation of websocket-client is using “CONNECT” method via proxy.
example
import websocket
ws = websocket.WebSocket()
ws.connect("ws://example.com/websocket", http_proxy_host="proxy_host_name", http_proxy_port=3128)
This example is similar to how WebSocket code looks in browsers using JavaScript.
import websocket try: import thread except ImportError: import _thread as thread import time def on_message(ws, message): print(message) def on_error(ws, error): print(error) def on_close(ws): print("### closed ###") def on_open(ws): def run(*args): for i in range(3): time.sleep(1) ws.send("Hello %d" % i) time.sleep(1) ws.close() print("thread terminating...") thread.start_new_thread(run, ()) if __name__ == "__main__": websocket.enableTrace(True) ws = websocket.WebSocketApp("ws://echo.websocket.org/", on_message = on_message, on_error = on_error, on_close = on_close) ws.on_open = on_open ws.run_forever()
This is if you want to communicate a short message and disconnect immediately when done.
from websocket import create_connection ws = create_connection("ws://echo.websocket.org/") print("Sending ‘Hello, World‘...") ws.send("Hello, World") print("Sent") print("Receiving...") result = ws.recv() print("Received ‘%s‘" % result) ws.close()
If you want to customize socket options, set sockopt.
sockopt example
from websocket import create_connection ws = create_connection("ws://echo.websocket.org/", sockopt=((socket.IPPROTO_TCP, socket.TCP_NODELAY),))
You can also write your own class for the connection, if you want to handle the nitty-gritty details yourself.
import socket from websocket import create_connection, WebSocket class MyWebSocket(WebSocket): def recv_frame(self): frame = super().recv_frame() print(‘yay! I got this frame: ‘, frame) return frame ws = create_connection("ws://echo.websocket.org/", sockopt=((socket.IPPROTO_TCP, socket.TCP_NODELAY, 1),), class_=MyWebSocket)
Please set sslopt to {“cert_reqs”: ssl.CERT_NONE}.
WebSocketApp sample
ws = websocket.WebSocketApp("wss://echo.websocket.org") ws.run_forever(sslopt={"cert_reqs": ssl.CERT_NONE})
create_connection sample
ws = websocket.create_connection("wss://echo.websocket.org", sslopt={"cert_reqs": ssl.CERT_NONE})
WebSocket sample
ws = websocket.WebSocket(sslopt={"cert_reqs": ssl.CERT_NONE})
ws.connect("wss://echo.websocket.org")
Please set sslopt to {“check_hostname”: False}. (since v0.18.0)
WebSocketApp sample
ws = websocket.WebSocketApp("wss://echo.websocket.org") ws.run_forever(sslopt={"check_hostname": False})
create_connection sample
ws = websocket.create_connection("wss://echo.websocket.org", sslopt={"check_hostname": False})
WebSocket sample
ws = websocket.WebSocket(sslopt={"check_hostname": False})
ws.connect("wss://echo.websocket.org")
SNI support is available for Python 2.7.9+ and 3.2+. It will be enabled automatically whenever possible.
The server needs to support sub protocols, please set the subprotocol like this.
Subprotocol sample
ws = websocket.create_connection("ws://example.com/websocket", subprotocols=["binary", "base64"])
wsdump.py is simple WebSocket test(debug) tool.
sample for echo.websocket.org:
$ wsdump.py ws://echo.websocket.org/ Press Ctrl+C to quit > Hello, WebSocket < Hello, WebSocket > How are you? < How are you?
usage:
wsdump.py [-h] [-v [VERBOSE]] ws_url
WebSocket Simple Dump Tool
| -h, --help | show this help message and exit |
| -v VERBOSE, --verbose VERBOSE | |
| set verbose mode. If set to 1, show opcode. If set to 2, enable to trace websocket module |
example:
$ wsdump.py ws://echo.websocket.org/ $ wsdump.py ws://echo.websocket.org/ -v $ wsdump.py ws://echo.websocket.org/ -vv
标签：tin eve ssl cert lse 2.7 server turn pre web
原文地址：https://www.cnblogs.com/fangbei/p/python-websocket.html
