I am trying to build a multiplayer game that uses Python. I am using Tornado to build the client and server. Ideally, what I would like to happen are as follows:
(a) For the client to wait for user input from the command line
(b) When the client gets user input, to send the user input to the server
(c) for the server to simulate some processing(which will be the game engine) on it and send the response back to a client.
The server
"""
Server module for game server
"""
import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web
import tornado.websocket
import uuid
import json
class Controller(object):
def __init__(self):
self.players = ()
self.connections = ()
def check(self):
return "Hi"
def run_somthing(self, text):
new_text = "Server: " + text
return new_text
class InitMessageHandler(tornado.web.RequestHandler):
def get(self):
user_data = {}
user_data['user_id'] = str(uuid.uuid4())
self.write(json.dumps(user_data))
class GameHandler(tornado.websocket.WebSocketHandler):
def open(self):
# called anytime a new connection with this server is opened
print("Client connected")
print("Client sent: ", self)
if seif not in self.application.controller.connections:
self.application.controller.connections.add(self)
def on_message(self):
# called anytime a new message is received
pass
def check_origin(self, origin):
return True
def on_close(self):
# called a websocket connection is closed
if self in self.application.controller.connections:
self.application.controller.connections.remove(self)
class Server(tornado.web.Application):
def __init__(self):
self.controller = Controller()
handlers = [
(r"/join", InitMessageHandler),
(r"/game", GameHandler)
]
tornado.web.Application.__init__(self, handlers)
if __name__ == "__main__":
tornado.options.parse_command_line()
try:
application = Server()
server = tornado.httpserver.HTTPServer(application)
server.listen(8888)
tornado.ioloop.IOLoop.instance().start()
except KeyboardInterrupt:
tornado.ioloop.IOLoop.instance().stop()
print("closed")
The client
"""
Client module for the game clients(Players)
"""
import tornado.ioloop
import tornado.websocket
import requests
import json
import sys
import tornado.gen
class Client(object):
def __init__(self, join_url, play_url):
self.wsconn = None
self.join_url = join_url
self.play_url = play_url
#self.io_loop = tornado.ioloop.IOLoop.instance()
#self.io_loop.add_handler(sys.stdin, self.handle_user_input, tornado.ioloop.IOLoop.READ)
self.user_details = {}
self.has_initialised = False
#self.io_loop.start()
self.main()
def get_user_input(self, question=None):
str_choice = input(question)
while any((str_choice is None, not str_choice.strip())):
print("You entered an empty answer")
str_choice = input(question)
return str_choice
def _merge_dicts(*dict_args):
"""
Given any number of dicts, shallow copy and merge into a new dict,
precedence goes to key value pairs in latter dicts.
"""
result = {}
for dictionary in dict_args:
result.update(dictionary)
return result
def generate_wsmessage(self):
msg_line = input("Enter message to send to server")
while any((msg_line is None, not msg_line.strip())):
print("You entered an empty answer")
msg_line = input("Enter message to send to server")
msg = {}
msg['message'] = msg_line
msg_to_send = self._merge_dicts(self.user_details, msg)
return json.dumps(msg_to-send)
def init(self):
print("Heh")
username = self.get_user_input("What is your username? ")
print("Getting initial user details")
req = requests.get(self.join_url)
response = json.loads(req.text)
print(response)
self.user_details['name'] = username
self.user_details['user_id'] = response['user_id']
self.has_initialised = True
def server_recv(self, msg):
print("Server has connected on websocket socket with msg=", msg)
#tornado.gen.coroutine
def connect_on_websocket(self):
try:
self.wsconn = yield tornado.websocket.websocket_connect(self.play_url, on_message_callback=self.server_recv)
except Exception as e:
print("Connection error: {}".format(e))
else:
print("Connected")
#tornado.gen.coroutine
def send_wsmessage(self):
msg = self.generate_wsmessage()
yield self.wsconn.write_message(msg)
#tornado.gen.coroutine
def communicate_with_websocket(self):
self.send_wsmessage()
while True:
recv_msg = yield self.wsconn.read_message()
if recv_msg is None:
self.wsconn.close()
break
yield tornado.gen.sleep(0.1)
self.send_wsmessage()
print("IoLoop terminate")
def main(self):
choice = input("Do you want to continue(y/n)? ")
if choice == "y" and self.has_initialised == False:
print("Yup")
self.init()
if self.has_initialised == True:
self.connect_on_websocket()
self.communicate_with_websocket()
if __name__ == "__main__":
try:
client = Client("http://localhost:8888/join", "ws://localhost:8888/game")
tornado.ioloop.IOLoop.instance().start()
except (SystemExit, KeyboardInterrupt):
print("Client closed")
From reading the some examples online, I came up the code above, but it is not working. So my main question is
how to make Tornado coroutines work with stdin(command line input)
My other questions are:
(a) Is the code I have written the right way to work with Tornado coroutines or not?
(b) If it is not, could you ELI5? Also I would appreciate code examples that really use Tornado in interesting ways(at any intermediate level) so that I can learn from them.
(c) Is there a more intuitive way to do what I want to do,in Python? Like a Flask+Gevents or Twisted version or just pure sockets version that might be easier to work with?
Thanks for your help.
EDIT: Flan pointed out some errors for me and I fixed it and it works now.
As I can see at the moment, problem is not in stdin interaction, but your wrong way of using coroutines. Your connect_on_websocket and communicate_with_websocket functions are coroutines but you are using them as a plain functions and it won't work. I propose these changes.
Make main() coroutine (add decorator), don't call it, remove from the Client.__init__().
In name=main block schedule client.main() invocation with tornado.ioloop.IOLoop.instance().add_callback(client.main).
In main and all your code change coroutine-functions' (with #tornado.gen.coroutine) calls to yield, for example yield self.connect_on_websocket() instead of just self.connect_on_websocket()
That should be sufficient so you can proceed your development further.
The edited code is
The server:
"""
Server module for game server
"""
import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web
import tornado.websocket
import uuid
import json
class Controller(object):
def __init__(self):
self.players = set()
self.connections = set()
def check(self):
return "Hi"
def run_somthing(self, text):
new_text = "Server: " + text
return new_text
class InitMessageHandler(tornado.web.RequestHandler):
def get(self):
print("Client has asked for initial details")
user_data = {}
user_data['user_id'] = str(uuid.uuid4())
self.write(json.dumps(user_data))
class GameHandler(tornado.websocket.WebSocketHandler):
def open(self):
# called anytime a new connection with this server is opened
print("Client connected")
print("Client sent: ", self)
if self not in self.application.controller.connections:
self.application.controller.connections.add(self)
def on_message(self, message):
# called anytime a new message is received
print("Received from client ,msg=", message)
msg = "Server: " + message
self.write_message(json.dumps(msg))
def check_origin(self, origin):
return True
def on_close(self):
# called a websocket connection is closed
if self in self.application.controller.connections:
self.application.controller.connections.remove(self)
class Server(tornado.web.Application):
def __init__(self):
self.controller = Controller()
handlers = [
(r"/join", InitMessageHandler),
(r"/game", GameHandler)
]
tornado.web.Application.__init__(self, handlers)
if __name__ == "__main__":
tornado.options.parse_command_line()
try:
application = Server()
server = tornado.httpserver.HTTPServer(application)
server.listen(8888)
tornado.ioloop.IOLoop.instance().start()
except KeyboardInterrupt:
tornado.ioloop.IOLoop.instance().stop()
print("Server closed")
The client
import tornado.ioloop
import tornado.websocket
import requests
import json
import sys
import tornado.gen
class Client(object):
def __init__(self, join_url, play_url):
self.wsconn = None
self.join_url = join_url
self.play_url = play_url
self.user_details = {}
def get_user_input(self, question=None):
str_choice = input(question)
while any((str_choice is None, not str_choice.strip())):
print("You entered an empty answer")
str_choice = input(question)
return str_choice
def _merge_dicts(*dict_args):
"""
Given any number of dicts, shallow copy and merge into a new dict,
precedence goes to key value pairs in latter dicts.
"""
result = {}
for dictionary in dict_args:
result.update(dictionary)
return result
def generate_wsmessage(self):
msg_line = self.get_user_input("Enter message to send to server: ")
msg = {}
msg['message'] = msg_line
msg['user_id'] = self.user_details['user_id']
msg['user_name'] = self.user_details['user_name']
print("Message to send: ", msg)
return json.dumps(msg)
def init(self):
print("Heh")
username = self.get_user_input("What is your username? ")
print("Getting initial user details")
req = requests.get(self.join_url)
response = json.loads(req.text)
print(response)
self.user_details['user_name'] = username
self.user_details['user_id'] = response['user_id']
#tornado.gen.coroutine
def connect_on_websocket(self):
try:
self.wsconn = yield tornado.websocket.websocket_connect(self.play_url)
except Exception as e:
print("Connection error: {}".format(e))
else:
print("Server has connected to ")
yield self.send_wsmessage()
#tornado.gen.coroutine
def send_wsmessage(self):
msg = self.generate_wsmessage()
if not self.wsconn:
raise RuntimeError('Web socket connection is closed.')
yield self.wsconn.write_message(json.dumps(msg))
yield self.communicate_with_websocket()
#tornado.gen.coroutine
def communicate_with_websocket(self):
recv_msg = None
while True:
recv_msg = yield self.wsconn.read_message()
if recv_msg is None:
self.wsconn.close()
break
print("Server has replied with message=", recv_msg)
yield self.send_wsmessage()
print("IoLoop terminate")
#tornado.gen.coroutine
def main(self):
choice = input("Do you want to continue(y/n)? ")
if choice == "y":
print("Yup")
self.init()
yield self.connect_on_websocket()
if choice == "n":
sys.exit()
if __name__ == "__main__":
try:
client = Client("http://localhost:8888/join", "ws://localhost:8888/game")
tornado.ioloop.IOLoop.instance().add_callback(client.main)
tornado.ioloop.IOLoop.instance().start()
except (SystemExit, KeyboardInterrupt):
print("Client closed")
For (a), (b) check out here. For (c), another time.
Related
I am trying to send and receive web socket data using my Client.py file. I am also trying to load the prompts ("Username?") into the Feeler console and have input from InConsole stored in the username variable in the Client.py file. So far I have been unable to make this setup work.
What is the most efficient way for me to accomplish this task?
I have the following code in Feeler.py
...
def Message(output):
message = Client.main(output)
return message
class OutConsole(ScrollView):
prev = Text("")
async def eval(self, text_input):
pre_y = self.y
with console.capture() as capture:
try:
console.print(f"{text_input}")
except Exception:
console.print_exception(show_locals=True)
self.prev.append(Text.from_ansi(capture.get() + "\n"))
await self.update(self.prev)
self.y = pre_y
self.animate("y", self.window.virtual_size.height, duration=1, easing="linear")
class InConsole(TextInput):
def __init__(self, out):
super(InConsole, self).__init__()
self.out = out
async def on_key(self, event: events.Key) -> None:
if event.key == "enter":
await self.out.eval(self.value)
self.value = ""
class GridTest(App):
async def on_mount(self) -> None:
"""Make a simple grid arrangement."""
# Git code
output = OutConsole()
in_put = InConsole(out=output)
message = Message(output)
await output.eval(message)
...
I also Have this in Client.py
def main():
# Define the host IP and port for the server
HOST = socket.gethostname()
PORT = 5050
# Ask For initial username and password
return ("Username?")
username = input(">")
return ("Password?")
password = getpass.getpass(f"{username}> ")
The rest of my code can be found at https://github.com/DanielATucker/Brain/tree/Client for reference.
Thanks!
So this should be fairly simple, i have a client that connects to a server, and it can receive messages from the server just fine. However i need to be able to send messages to the server. I am using asyncio to handle these asynchronously but i have a problem with that. How do i get the user input to my client so it can use its transport to send the data up to the server. Heres the code.
import asyncio, zen_utils, json
from struct import *
class ChatClient(asyncio.Protocol):
def connection_made(self, transport):
self.transport = transport
self.address = transport.get_extra_info('peername')
self.data = b''
print('Accepted connection from {}'.format(self.address))
self.username = b'jacksonm'
json_name = b'{"USERNAME": "'+self.username+b'"}'
length = len(json_name)
code_len = pack(b'!I', length)
message = code_len + json_name
self.json_loaded = False
self.next_length = -1
self.transport.write(message)
def data_received(self, data):
self.data += data
if (self.json_loaded == False):
self.compile_server_data(data)
elif(self.json_loaded):
if (len(self.data) > 4 and self.next_length == -1):
self.next_length = self.data[:4]
self.next_length = unpack(b'!I', self.next_length)[0]
print("LENGTH: ", self.next_length)
elif (len(self.data) >= self.next_length):
self.data = self.data[4:]
print("MESSAGE: ", self.data)
self.next_length = -1
def compile_server_data(self, data):
if (self.data.find(b'}') != -1):
start_index = self.data.find(b'{')
end_index = self.data.find(b'}')
self.json_data = self.data[start_index:end_index + 1]
self.data = self.data[end_index + 1:]
self.json_data = self.json_data.decode('ascii')
self.json_data = json.loads(self.json_data)
self.json_loaded = True
self.print_server_status()
def send_message(self, message):
message = message.encode('ascii')
length = len(message)
code_len = pack(b'!I', length)
message = code_len + message
def parse_message(self, raw_message):
message = {}
message['SRC'] = self.username
message['DEST'] = b'ALL'
message['TIMESTAMP'] = int(time.time())
message['CONTENT'] = b'test_message'
json_message = json.loads(message)
print (json_message)
def print_server_status(self):
print ("USERS:")
for user in self.json_data["USER_LIST"]:
print(user)
print()
print("MESSAGES:")
for message in self.json_data["MESSAGES"][-10:]:
print ("From: ", message[0], " ", "To: ", message[1])
print ("Message: ", message[3])
print()
def get_inital_data(self):
pass
def connection_lost(self, exc):
if exc:
print('Client {} error: {}'.format(self.address, exc))
elif self.data:
print('Client {} sent {} but then closed'
.format(self.address, self.data))
else:
print('Client {} closed socket'.format(self.address))
#asyncio.coroutine
def handle_user_input(loop):
"""reads from stdin in separate thread
if user inputs 'quit' stops the event loop
otherwise just echos user input
"""
while True:
message = yield from loop.run_in_executor(None, input, "> ")
if message == "quit":
loop.stop()
return
print(message)
if __name__ == '__main__':
address = zen_utils.parse_command_line('asyncio server using callbacks')
loop = asyncio.get_event_loop()
coro = loop.create_connection(ChatClient, *address)
server = loop.run_until_complete(coro)
# Start a task which reads from standard input
asyncio.async(handle_user_input(loop))
print('Listening at {}'.format(address))
try:
loop.run_forever()
finally:
server.close()
loop.close()
This is working in my tests by changing one line, using Python 3.4:
Change the run_until_complete() call to receive a (transport,protocol) pair instead of a single value.
Specifically, change server = loop.run_until_complete(coro) to transport, protocol = loop.run_until_complete(coro), because the call executes the coroutine and returns its value which is a pair of items. The first item is the server object, and the second entry is a protocol object which is an instance of ChatClient.
Run the server then the client in different command windows.
Client code:
import asyncio, json #, zen_utils
from struct import *
class ChatClient(asyncio.Protocol):
def connection_made(self, transport):
self.transport = transport
self.address = transport.get_extra_info('peername')
self.data = b''
print('Accepted connection from {}'.format(self.address))
def data_received(self, data):
pass
def compile_server_data(self, data):
pass
def send_message(self, message):
message = message.encode('ascii')
self.transport.write(message)
def parse_message(self, raw_message):
pass
def print_server_status(self):
pass
def get_inital_data(self):
pass
def connection_lost(self, exc):
if exc:
print('Client {} error: {}'.format(self.address, exc))
elif self.data:
print('Client {} sent {} but then closed'
.format(self.address, self.data))
else:
print('Client {} closed socket'.format(self.address))
#asyncio.coroutine
def handle_user_input(loop, protocol):
"""reads from stdin in separate thread
if user inputs 'quit' stops the event loop
otherwise just echos user input
"""
while True:
message = yield from loop.run_in_executor(None, input, "> ")
if message == "quit":
loop.stop()
return
print(message)
protocol.send_message(message)
if __name__ == '__main__':
address = "127.0.0.1"
port = 82
loop = asyncio.get_event_loop()
coro = loop.create_connection(ChatClient, address, port) #*address
transport, protocol = loop.run_until_complete(coro)
# Start a task which reads from standard input
asyncio.async(handle_user_input(loop,protocol))
print('Listening at {}'.format(address))
try:
loop.run_forever()
finally:
transport.close()
loop.close()
Server code, credit goes to this site:
import socket
host = '' # Symbolic name meaning all available interfaces
port = 82 # Arbitrary non-privileged port
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((host, port))
s.listen(1)
conn, addr = s.accept()
print('Connected by', addr)
while True:
data = conn.recv(1024)
if not data: break
print( 'Received ', repr(data) )
if repr(data)=="stop": break
conn.sendall(data)
conn.close()
Can you anyone please help me (noob) call the broadcast function from class BroadcastServerFactory in class process, as per attached code
I have tried so many methods of call a function from another class, but no solution
import time, sys
from apscheduler.scheduler import Scheduler
import threading
import socket
from twisted.internet import reactor
from twisted.python import log
from twisted.web.server import Site
from twisted.web.static import File
from autobahn.websocket import WebSocketServerFactory, \
WebSocketServerProtocol, \
listenWS
class process(threading.Thread):
def __init__(self, buffer3):
threading.Thread.__init__(self)
self.setDaemon(True)
self.buffer3 = buffer3
def run(self):
factory.broadcast("I don't know what I'm doing!")
class BroadcastServerProtocol(WebSocketServerProtocol):
def onOpen(self):
self.factory.register(self)
def onMessage(self, msg, binary):
if not binary:
self.factory.broadcast("'%s' from %s" % (msg, self.peerstr))
def connectionLost(self, reason):
WebSocketServerProtocol.connectionLost(self, reason)
self.factory.unregister(self)
class BroadcastServerFactory(WebSocketServerFactory):
"""
Simple broadcast server broadcasting any message it receives to all
currently connected clients.
"""
def __init__(self, url, debug = False, debugCodePaths = False):
WebSocketServerFactory.__init__(self, url, debug = debug, debugCodePaths = debugCodePaths)
self.clients = []
self.tickcount = 0
self.tick()
def tick(self):
self.tickcount += 1
self.broadcast("'tick %d' from server" % self.tickcount)
reactor.callLater(1, self.tick)
def register(self, client):
if not client in self.clients:
print "registered client " + client.peerstr
self.clients.append(client)
def unregister(self, client):
if client in self.clients:
print "unregistered client " + client.peerstr
self.clients.remove(client)
def broadcast(self, msg):
print "broadcasting message '%s' .." % msg
for c in self.clients:
c.sendMessage(msg)
print "message sent to " + c.peerstr
class BroadcastPreparedServerFactory(BroadcastServerFactory):
"""
Functionally same as above, but optimized broadcast using
prepareMessage and sendPreparedMessage.
"""
def broadcast(self, msg):
print "broadcasting prepared message '%s' .." % msg
preparedMsg = self.prepareMessage(msg)
for c in self.clients:
c.sendPreparedMessage(preparedMsg)
print "prepared message sent to " + c.peerstr
def testing():
buffer2 - "hello"
myDisplay = process(buffer2)
myDisplay.start()
if __name__ == '__main__':
if len(sys.argv) > 1 and sys.argv[1] == 'debug':
log.startLogging(sys.stdout)
debug = True
else:
debug = False
level_scheduler = Scheduler()
level_scheduler.add_interval_job(testing, seconds=5)
level_scheduler.start()
#ServerFactory = BroadcastServerFactory
ServerFactory = BroadcastPreparedServerFactory
factory = ServerFactory("ws://localhost:9000",
debug = debug,
debugCodePaths = debug)
factory.protocol = BroadcastServerProtocol
factory.setProtocolOptions(allowHixie76 = True)
listenWS(factory)
webdir = File(".")
web = Site(webdir)
reactor.listenTCP(8080, web)
reactor.run()
Thanks
Pass the class instance of BroadcastServerFactory to be called to the class instance that calls it process on creation
class process(threading.Thread):
def __init__(self, buffer3m, broadcast_server_factory):
threading.Thread.__init__(self)
self.setDaemon(True)
self.buffer3 = buffer3
self.factory = broadcast_server_factory
def run(self):
self.factory.broadcast("I don't know what I'm doing!")
and then call it (it's assigned as self.factory in the run statement. I can't see where you create a process class in your __main__ but it will be created with something like
p = process(buffer, factory)
Aside: Using capital letters for class names is considered good form in python process -> Process
I've been playing around with the Twisted extension and have fooled around with a chat room sort of system. However I want to expand upon it. As of now it only support multi-client chats with usernames ect. But I want to try and use the pyAudio extension to build a sort of VoIP application. I have a clientFactory and a simple echo protocol in the client and a serverFactory and protocol on the server. but I'm not entirely sure how to build off of this. What would be the best way to go about doing something like this?
Code to help if you need it
client.py:
import wx
from twisted.internet import wxreactor
wxreactor.install()
# import twisted reactor
import sys
from twisted.internet import reactor, protocol, task
from twisted.protocols import basic
class ChatFrame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, parent=None, title="WhiteNOISE")
self.protocol = None # twisted Protocol
sizer = wx.BoxSizer(wx.VERTICAL)
self.text = wx.TextCtrl(self, style=wx.TE_MULTILINE | wx.TE_READONLY)
self.ctrl = wx.TextCtrl(self, style=wx.TE_PROCESS_ENTER, size=(300, 25))
sizer.Add(self.text, 5, wx.EXPAND)
sizer.Add(self.ctrl, 0, wx.EXPAND)
self.SetSizer(sizer)
self.ctrl.Bind(wx.EVT_TEXT_ENTER, self.send)
def send(self, evt):
self.protocol.sendLine(str(self.ctrl.GetValue()))
self.ctrl.SetValue("")
class DataForwardingProtocol(basic.LineReceiver):
def __init__(self):
self.output = None
def dataReceived(self, data):
gui = self.factory.gui
gui.protocol = self
if gui:
val = gui.text.GetValue()
gui.text.SetValue(val + data)
gui.text.SetInsertionPointEnd()
def connectionMade(self):
self.output = self.factory.gui.text # redirect Twisted's output
class ChatFactory(protocol.ClientFactory):
def __init__(self, gui):
self.gui = gui
self.protocol = DataForwardingProtocol
def clientConnectionLost(self, transport, reason):
reactor.stop()
def clientConnectionFailed(self, transport, reason):
reactor.stop()
if __name__ == '__main__':
app = wx.App(False)
frame = ChatFrame()
frame.Show()
reactor.registerWxApp(app)
reactor.connectTCP("192.168.1.115", 5001, ChatFactory(frame))
reactor.run()
server.py:
from twisted.internet import reactor, protocol
from twisted.protocols import basic
import time
def t():
return "["+ time.strftime("%H:%M:%S") +"] "
class EchoProtocol(basic.LineReceiver):
name = "Unnamed"
def connectionMade(self):
#on client connection made
self.sendLine("WhiteNOISE")
self.sendLine("Enter A Username Below...")
self.sendLine("")
self.count = 0
self.factory.clients.append(self)
print t() + "+ Connection from: "+ self.transport.getPeer().host
def connectionLost(self, reason):
#on client connection lost
self.sendMsg("- %s left." % self.name)
print t() + "- Connection lost: "+ self.name
self.factory.clients.remove(self)
def lineReceived(self, line):
#actions to do on message recive
if line == '/quit':
#close client connection
self.sendLine("Goodbye.")
self.transport.loseConnection()
return
elif line == "/userlist":
#send user list to single client, the one who requested it
self.chatters()
return
elif line.startswith("/me"):
#send an action formatted message
self.sendLine("**" + self.name + ": " + line.replace("/me",""))
return
elif line == "/?":
self.sendLine("Commands: /? /me /userlist /quit")
return
if not self.count:
self.username(line)
else:
self.sendMsg(self.name +": " + line)
def username(self, line):
#check if username already in use
for x in self.factory.clients:
if x.name == line:
self.sendLine("This username is taken; please choose another")
return
self.name = line
self.chatters()
self.sendLine("You have been connected!")
self.sendLine("")
self.count += 1
self.sendMsg("+ %s joined." % self.name)
print '%s~ %s connected as: %s' % (t(), self.transport.getPeer().host, self.name)
def chatters(self):
x = len(self.factory.clients) - 1
s = 'is' if x == 1 else 'are'
p = 'person' if x == 1 else 'people'
self.sendLine("There %s %i other %s connected:" % (s, x, p) )
for client in self.factory.clients:
if client is not self:
self.sendLine(client.name)
self.sendLine("")
def sendMsg(self, message):
#send message to all clients
for client in self.factory.clients:
client.sendLine(t() + message)
class EchoServerFactory(protocol.ServerFactory):
protocol = EchoProtocol
clients = []
if __name__ == "__main__":
reactor.listenTCP(5001, EchoServerFactory())
reactor.run()
Take a look at Divmod Sine, a SIP application server. The basic idea is that you need an additional network server in your application that will support the VoIP parts of the application.
Learn Twisted. I decided to write a server and client that once a second to share data.
Wrote one implementation, but it seems to me that it is not correct.
# -*- coding: utf-8 -*-
from twisted.spread import pb
from twisted.internet import reactor, task
from twisted.cred import credentials
from win32com.server import factory
class login_send:
def __init__(self):
self.count=0
self.timeout = 1.0
self.factory = pb.PBClientFactory()
reactor.connectTCP("localhost", 8800, self.factory)
def testTimeout(self):
self.count+=1
print self.count
def1 = self.factory.login(credentials.UsernamePassword("test1","bb1b"))
def1.addCallbacks(self.good_connected, self.bad_connected)
def1.addCallback(self.send_data)
def1.addErrback(self.disconnect)
if self.count>10:def1.addBoth(self.disconnect)
def start(self):
l = task.LoopingCall(self.testTimeout)
l.start(self.timeout)
reactor.run()
def good_connected(self, perspective):
print 'good login and password', perspective
return perspective
def bad_connected(self, perspective):
print 'bad login or password', perspective
return perspective
def send_data(self, perspective):
print 'send'
return perspective.callRemote("foo", self.count)
def disconnect(self, perspective):
print 'disconnect'
reactor.stop()
if __name__ == "__main__":
st=login_send()
st.start()
Code: if login and password True -> send self.count, if login or password False -> disconnect, if self.count>10 -> disconnect
The first mistake, in my opinion is that I have to login every time.
def1 = self.factory.login(credentials.UsernamePassword("test1", "bb1b"))
How to make one authorization, and continue to send data every second?
simple test server code:
from zope.interface import implements
from twisted.spread import pb
from twisted.cred import checkers, portal
from twisted.internet import reactor
class MyPerspective(pb.Avatar):
def __init__(self, name):
self.name = name
def perspective_foo(self, arg):
print "I am", self.name, "perspective_foo(",arg,") called on", self
return arg
class MyRealm:
implements(portal.IRealm)
def requestAvatar(self, avatarId, mind, *interfaces):
if pb.IPerspective not in interfaces:
print 'qqqq'
raise NotImplementedError
return pb.IPerspective, MyPerspective(avatarId), lambda:None
p = portal.Portal(MyRealm())
c = checkers.InMemoryUsernamePasswordDatabaseDontUse(test1="bbb",
user2="pass2")
p.registerChecker(c)
reactor.listenTCP(8800, pb.PBServerFactory(p))
reactor.run()
I believe this should do the trick.
# Upper case first letter of class name is good policy.
class Login_send:
def __init__(self):
# initialize the state variable to False.
self.connection = False
self.count=0
self.timeout = 1.0
self.factory = pb.PBClientFactory()
reactor.connectTCP("localhost", 8800, self.factory)
def testTimeout(self):
self.count+=1
print self.count
# no connection -- create one.
if not self.connection:
self.assign_connection()
# cached connection exists, call send_data manually.
elif self.count > 10:
self.disconnect(self.connection)
else:
#you probably want to send data only if it it should be valid.
self.send_data(self.connection)
def assign_connection(self):
''' Creates and stores a Deffered which represents the connection to
the server. '''
# cache the connection.
self.connection = self.factory.login(
credentials.UsernamePassword("test1","bb1b"))
# add connection callbacks as normal.
self.connection.addCallbacks(
self.good_connected, self.bad_connected)
self.connection.addCallback(self.send_data)
self.connection.addErrback(self.disconnect)
def disconnect(self, perspective):
# be sure to cleanup after yourself!
self.connection = False
print 'disconnect'
reactor.stop()
# the rest of your class goes here.