我试图让一个Python客户机使用Socket.io 0.7与Node.js服务器对话,方法是向服务器发送一个自定义事件。
基于我在GitHub和下面的WebSocket Python library上找到的Socket.io引用。
这是我目前的代码:
节点服务器
io.sockets.on('connection', function (socket) {
socket.on('newimg', function(data) {
console.log(data);
});
});
Python客户端
def handshake(host, port):
u = urlopen("http://%s:%d/socket.io/1/" % (host, port))
if u.getcode() == 200:
response = u.readline()
(sid, hbtimeout, ctimeout, supported) = response.split(":")
supportedlist = supported.split(",")
if "websocket" in supportedlist:
return (sid, hbtimeout, ctimeout)
else:
raise TransportException()
else:
raise InvalidResponseException()
try:
(sid, hbtimeout, ctimeout) = handshake(HOSTNAME, PORT) #handshaking according to socket.io spec.
Except Exception as e:
print e
sys.exit(1)
ws = websocket.create_connection("ws://%s:%d/socket.io/1/websocket/%s" % (HOSTNAME, PORT, sid))
print ws.recv()
ws.send("2::")
ws.send("5:1::{'name':'newimg', 'args':'bla'}")
print ws.recv()
print "Closing connection"
ws.close()
节点控制台输出
debug - client authorized
info - handshake authorized 12738935571241622933
debug - setting request GET /socket.io/1/websocket/12738935571241622933
debug - set heartbeat interval for client 12738935571241622933
debug - client authorized for
debug - websocket writing 1::
debug - websocket received data packet 2::
debug - got heartbeat packet
debug - websocket received data packet 5:1::{'name':'newimg', 'args':'bla'}
debug - acknowledging packet automatically
debug - websocket writing 6:::1
info - transport end
debug - set close timeout for client 12738935571241622933
debug - cleared close timeout for client 12738935571241622933
debug - cleared heartbeat interval for client 12738935571241622933
debug - discarding transport
Python控制台输出
Done
1::
6:::1
Closing connection
现在看来,尽管服务器使用ACK响应,套接字事件似乎没有被触发。因此,消息被正确接收,但我假设,没有正确格式化socket.io以触发事件。
我不认为框架是必要的,但是Archie1986似乎不同意他对此的回答:Socket.IO Client Library in Python
我在这里会做错什么?
解决了。我需要用双引号。单引号不是有效的JSON。胡说。
变成:
我把rod的研究打包成barebones socket.io client library。
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