Javascript ws4py-发送/接收的\u消息不工作
我在制作WebSocket服务器/客户端时遇到了一些问题 这是我的WebSocket课程:Javascript ws4py-发送/接收的\u消息不工作,javascript,python,python-3.x,cherrypy,ws4py,Javascript,Python,Python 3.x,Cherrypy,Ws4py,我在制作WebSocket服务器/客户端时遇到了一些问题 这是我的WebSocket课程: wslist = [] class LoginLiveWebSocketHandler(WebSocket): # /live/ws/zones loggedon = False def opened(self): log("Opened!") wslist.append(self) def received_message(self, m)
wslist = []
class LoginLiveWebSocketHandler(WebSocket): # /live/ws/zones
loggedon = False
def opened(self):
log("Opened!")
wslist.append(self)
def received_message(self, m):
log("Received Message!")
log(m)
log(m.data)
m = str(m.data)
if not m.startswith("Login: ") & (not self.loggedon):
return
if m.startswith("Login: ") & self.loggedon:
return
if m.startswith("Login: ") & (not self.loggedon):
split = m.replace("Login: ", "").split(":")
try:
id = split[0]
key = split[1]
except KeyError:
self.send("Login: 0", False)
return
try:
usr = users.getuser(id, key)
nick = usr["nick"]
loggedin = True
token = usr["groupme_token"]
active = usr["active"]
except KeyError or TypeError:
self.send("Login: 0", False)
return
if (not loggedin) | (not active) | (not local.token) | (local.user["faction"] != "f"):
self.send("Login: 0", False)
return
self.send("Login: 1", False)
self.loggedon = True
return
def closed(self, code, reason=""):
log("Closed!")
wslist.remove(self)
和我的JavaScript页面(注意,不是全部):
安装服务:
log("Starting WebServer (cherrypy)")
cherrypy.server.unsubscribe()
if config.DO_SSL is True:
server1 = cherrypy._cpserver.Server()
server1.socket_port = config.LISTEN_PORT_SSL
server1._socket_host = config.LISTEN
server1.thread_pool = 30
server1.ssl_certificate = config.SSL_CERTIFICATE
server1.ssl_private_key = config.SSL_PRIVATE_KEY
server1.ssl_certificate_chain = config.SSL_CHAIN
server1.ssl_module = config.SSL_HANDLER
server1.subscribe()
server2 = cherrypy._cpserver.Server()
server2.socket_port = config.LISTEN_PORT
server2._socket_host = config.LISTEN
server2.thread_pool = 30
server2.subscribe()
WebSocketPlugin(cherrypy.engine).subscribe()
cherrypy.tools.websocket = WebSocketTool()
cherrypy.tree.mount(APIService.APIService(), "/api", config={"/": {'error_page.404': APIService.ep}})
cherrypy.tree.mount(JSONService.JSONService(), "/json", config={"/": {'error_page.404': JSONService.ep}})
cherrypy.tree.mount(USRAPIService.USRAPIService(), "/usrapi", config={"/": {'error_page.404': USRAPIService.ep}})
cherrypy.tree.mount(USRAPIAdminService.USRAPIAdminService(), "/usrapi/admin", config={
"/": {'error_page.404': USRAPIService.ep}})
cherrypy.tree.mount(RootService.RootService(), "/", config={"/": {'error_page.404': RootService.ep}})
cherrypy.tree.mount(AdminService.AdminService(), "/admin", config={"/": {'error_page.404': AdminService.ep}})
cherrypy.tree.mount(HelperPanel.HelperPanel(), "/helper", config={"/": {'error_page.404': HelperPanel.ep}})
cherrypy.tree.mount(LiveService.LiveService(), "/live", config={"/": {'error_page.404': LiveService.ep},
"/ws_zones": {'tools.websocket.on': True,
'tools.websocket.handler_cls':
LiveService.LoginLiveWebSocketHandler
}})
cherrypy.tree.mount(None, "/static", config={"/": {'error_page.404': AdminService.ep,
'tools.staticdir.on': True,
'tools.staticdir.dir':
os.path.join(__current_dir, "web/static")}})
cherrypy.engine.start()
log("Started WebServer (cherrypy)")
现场服务:
class LiveService(object):
@cherrypy.expose
@require(level=0)
def index(self, user, usrname, usrhelper, usradmin):
return render("index", usrname, usrhelper, usradmin)
@cherrypy.expose
@require(level=4) # Require login, Groupme, active and faceless
def live(self, user, usrname, usrhelper, usradmin):
return render("websocket/zonesdata", usrname, usrhelper, usradmin)
@cherrypy.expose
def ws_zones(self):
log("Handler created: %s" % repr(cherrypy.request.ws_handler))
cherrypy.request.ws_handler.send(b"Login 0", False)
因此,安装和启动工作已经开始,整个生产运行了几个月,但是新的带有ws的LiveService不起作用。
在日志中,我收到[21/Jul/2015:16:55:28]引擎启动WebSocket处理
和打开的
消息,但我从未收到或能够发送消息。
当我将LiveService.LoginLiveServiceWebSocketHandler更改为EchoWebSocket时,他会获取消息并发送它们,但是在ws_区域处理程序上
cherrypy.request.ws_handler.send(b“Login 0”,False)
它不起作用。是否使用b。分析
首先要说的是,您应该注意调试您可以使用的工具。例如,当您在Firefox中尝试应用程序时,Firebug(或Web控制台)会告诉您:
Firefox无法在ws://127.0.0.1:8080/live/ws_区域建立与服务器的连接
Chromium控制台有更有用的错误消息:
到“ws://127.0.0.1:8080/live/ws_zones”的WebSocket连接失败:WebSocket握手期间出错:状态行无效
好的,我们有一个握手问题
如果你打开Wireshark(或其他嗅探器),你会看到我们的Login 0
确实出现在ws4py
以握手回应之前(或者可能存在竞争条件)
我可以理解您的困惑,因为在一些地方,ws4py
文档或者暗示或者直接引导您走错了路。让我们看看:
-无法从普通处理程序发送
@cherrypy.expose
def ws(self):
# you can access the class instance through
handler = cherrypy.request.ws_handler
-您不能从打开的钩子发送
def opened(self):
"""
Called by the server when the upgrade handshake
has succeeeded.
"""
pass
所以我认为这要么是一个过时的文档,要么是一个bug
解决方案
现在,我建议你们在客户端开始沟通。如果您有一些预先登录的“聊天”,您可以在web套接字上创建一个小协议(您最终还是会这样做)。大概是这样的:
#!/usr/bin/env python3
import json
import cherrypy
from ws4py.server.cherrypyserver import WebSocketPlugin, WebSocketTool
from ws4py.websocket import WebSocket
class LoginLiveWebSocketHandler(WebSocket):
wsset = set()
'''Class level attr, do not rebind'''
def opened(self):
'''You can not send yet, because handshake has not been completed.
Yes, a documentation is not always correct ;-)
'''
cherrypy.log('Opened!')
self.wsset.add(self)
def closed(self, code, reason = ''):
cherrypy.log('Closed!')
self.wsset.remove(self)
def received_message(self, message):
cherrypy.log('Received Message!')
message = json.loads(message.data.decode())
if message['cmd'] == 'init':
self.send('Login 0')
else:
self.send(message['payload'] + ' pong')
class LiveService(object):
@cherrypy.expose
def index(self):
return '''<!DOCTYPE html>
<html>
<body>
<div id='log'></div>
<script type='application/javascript'>
var ws = new WebSocket('ws://127.0.0.1:8080/live/ws_zones');
ws.onopen = function(event)
{
ws.send(JSON.stringify({'cmd': 'init'}));
};
ws.onmessage = function(event)
{
document.getElementById('log').innerHTML += event.data + '<br/>';
};
var handle = setInterval(function()
{
if(ws.readyState == WebSocket.CLOSING || ws.readyState == WebSocket.CLOSED)
{
clearInterval(handle);
}
else
{
ws.send(JSON.stringify({'cmd': 'chat', 'payload': 'ping'}));
}
}, 1000);
</script>
</body>
</html>
'''
@cherrypy.expose
def ws_zones(self):
'''You can not send yet, because handshake has not been completed'''
cherrypy.log('Handler created: %r' % cherrypy.request.ws_handler)
if __name__ == '__main__':
cherrypy.config.update({
'server.socket_host' : '127.0.0.1',
'server.socket_port' : 8080,
'server.thread_pool' : 8
})
cherrypy.tools.websocket = WebSocketTool()
WebSocketPlugin(cherrypy.engine).subscribe()
cherrypy.tree.mount(LiveService(), '/live', {
'/ws_zones' : {
'tools.websocket.on' : True,
'tools.websocket.handler_cls' : LoginLiveWebSocketHandler
}
})
cherrypy.engine.signals.subscribe()
cherrypy.engine.start()
cherrypy.engine.block()
#/usr/bin/env蟒蛇3
导入json
进口樱桃
从ws4py.server.cherrypyserver导入WebSocketPlugin、WebSocketTool
从ws4py.websocket导入websocket
类LoginLiveWebSocketHandler(WebSocket):
wsset=set()
''类级属性,不重新绑定''
def打开(自):
''您还不能发送,因为握手尚未完成。
是的,文档并非总是正确的;-)
'''
cherrypy.log('Opened!')
self.wsset.add(self)
def关闭(自身、代码、原因=“”):
cherrypy.log('Closed!')
self.wsset.remove(self)
def收到_消息(自我,消息):
cherrypy.log('Received Message!')
message=json.load(message.data.decode())
如果消息['cmd']='init':
self.send('Login 0')
其他:
self.send(消息['payload']+'pong')
类LiveService(对象):
@樱桃树
def索引(自):
返回“”'
var ws=newwebsocket('ws://127.0.0.1:8080/live/ws_zones');
ws.onopen=函数(事件)
{
send(JSON.stringify({'cmd':'init'}));
};
ws.onmessage=函数(事件)
{
document.getElementById('log').innerHTML+=event.data+'
';
};
var handle=setInterval(函数()
{
if(ws.readyState==WebSocket.CLOSING | | ws.readyState==WebSocket.CLOSING)
{
间隙(手柄);
}
其他的
{
send(JSON.stringify({'cmd':'chat','payload':'ping');
}
}, 1000);
'''
@樱桃树
def ws_区域(自):
''您还不能发送,因为握手尚未完成''
cherrypy.log('创建的处理程序:%r'%cherrypy.request.ws\u处理程序)
如果uuuu name uuuuuu='\uuuuuuu main\uuuuuuu':
cherrypy.config.update({
'server.socket_host':'127.0.0.1',
'server.socket_port':8080,
“服务器线程池”:8
})
cherrypy.tools.websocket=WebSocketTool()
WebSocketPlugin(cherrypy.engine).subscribe()
mount(LiveService(),“/live”{
“/ws_区域”:{
'tools.websocket.on':True,
'tools.websocket.handler_cls':LoginLiveWebSocketHandler
}
})
cherrypy.engine.signals.subscribe()
cherrypy.engine.start()
cherrypy.engine.block()
有点愚蠢
@saaj是对的,但真正的问题是,我试图用m、m.data等调用函数log(需要str)。使用repr()或删除它都能成功
谢谢 显示您的LiveService.LiveService
。谢谢!现在就要努力做到这一点!
#!/usr/bin/env python3
import json
import cherrypy
from ws4py.server.cherrypyserver import WebSocketPlugin, WebSocketTool
from ws4py.websocket import WebSocket
class LoginLiveWebSocketHandler(WebSocket):
wsset = set()
'''Class level attr, do not rebind'''
def opened(self):
'''You can not send yet, because handshake has not been completed.
Yes, a documentation is not always correct ;-)
'''
cherrypy.log('Opened!')
self.wsset.add(self)
def closed(self, code, reason = ''):
cherrypy.log('Closed!')
self.wsset.remove(self)
def received_message(self, message):
cherrypy.log('Received Message!')
message = json.loads(message.data.decode())
if message['cmd'] == 'init':
self.send('Login 0')
else:
self.send(message['payload'] + ' pong')
class LiveService(object):
@cherrypy.expose
def index(self):
return '''<!DOCTYPE html>
<html>
<body>
<div id='log'></div>
<script type='application/javascript'>
var ws = new WebSocket('ws://127.0.0.1:8080/live/ws_zones');
ws.onopen = function(event)
{
ws.send(JSON.stringify({'cmd': 'init'}));
};
ws.onmessage = function(event)
{
document.getElementById('log').innerHTML += event.data + '<br/>';
};
var handle = setInterval(function()
{
if(ws.readyState == WebSocket.CLOSING || ws.readyState == WebSocket.CLOSED)
{
clearInterval(handle);
}
else
{
ws.send(JSON.stringify({'cmd': 'chat', 'payload': 'ping'}));
}
}, 1000);
</script>
</body>
</html>
'''
@cherrypy.expose
def ws_zones(self):
'''You can not send yet, because handshake has not been completed'''
cherrypy.log('Handler created: %r' % cherrypy.request.ws_handler)
if __name__ == '__main__':
cherrypy.config.update({
'server.socket_host' : '127.0.0.1',
'server.socket_port' : 8080,
'server.thread_pool' : 8
})
cherrypy.tools.websocket = WebSocketTool()
WebSocketPlugin(cherrypy.engine).subscribe()
cherrypy.tree.mount(LiveService(), '/live', {
'/ws_zones' : {
'tools.websocket.on' : True,
'tools.websocket.handler_cls' : LoginLiveWebSocketHandler
}
})
cherrypy.engine.signals.subscribe()
cherrypy.engine.start()
cherrypy.engine.block()