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socketio-server.py
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socketio-server.py
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import os
from socketio import socketio_manage
from socketio.server import SocketIOServer
from socketio.namespace import BaseNamespace
webapp = os.path.abspath(
os.path.join(
os.path.dirname(__file__),
'webapp'))
text = ""
class CollabEditNamespace(BaseNamespace):
users = {}
name = None
def disconnect(self, *args, **kwargs):
if self.name:
self.broadcast('exit', self.name)
del self.users[id(self)]
super(CollabEditNamespace, self).disconnect(*args, **kwargs)
def on_login(self, name):
global text
if self.name:
self.broadcast('exit', self.name)
self.users[id(self)] = self
self.name = name
self.broadcast('users', [ns.name for ns in self.users.values()])
self.emit('edit', text)
def on_edit(self, message):
global text
if self.name:
text = message
self.broadcast('edit', message)
def broadcast(self, event, message):
for s in self.users.values():
s.emit(event, message)
def serve_file(environ, start_response):
path = os.path.normpath(
os.path.join(webapp, environ['PATH_INFO'].lstrip('/')))
assert path.startswith(webapp), path
if os.path.exists(path):
start_response('200 OK', [('Content-Type', 'text/html')])
with open(path) as fp:
while True:
chunk = fp.read(4096)
if not chunk: break
yield chunk
else:
start_response('404 NOT FOUND', [])
yield 'File not found'
def collabEdit(environ, start_response):
if environ['PATH_INFO'].startswith('/socket.io'):
return socketio_manage(environ, { '/collabedit': CollabEditNamespace })
else:
return serve_file(environ, start_response)
server = SocketIOServer(('', 1234), collabEdit, policy_server=False)
server.serve_forever()