example
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8 changed files with 382 additions and 105 deletions
38
example/link.py
Normal file
38
example/link.py
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@ -0,0 +1,38 @@
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import json
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import urllib2
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PEERLINK='http://[::1]:8842/'
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NAME = 'chat'
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def urlopen(url, data=None, headers=None):
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if data and not isinstance(data, str):
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data = json.dumps(data)
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if not headers:
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headers = {
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'Content-Type': 'application/json',
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'User-Agent': 'ChatServer/0.0'
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}
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opener = urllib2.build_opener()
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print 'urlopen', url, data
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req = urllib2.Request(url, data=data, headers=headers)
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response = opener.open(req)
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return response.read()
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def post(action, data=None):
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url = PEERLINK + action
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return json.loads(urlopen(url, data))
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def add(name, url):
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global NAME
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NAME = name
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return post('add', {'name': name, 'url': url})
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def remote(peer, action, data):
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url = PEERLINK + '%s/%s/%s' % (peer, NAME, action)
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if not data:
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data = {'test': True}
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print 'REMOTE', url
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return urlopen(url, data)
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def remote_json(peer, action, data):
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return json.loads(remote(peer, action, data))
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204
example/server.py
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204
example/server.py
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@ -1,104 +1,140 @@
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#!/usr/bin/python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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from __future__ import division, print_function
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import json
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import os
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import shutil
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import SimpleHTTPServer
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import socket
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import SocketServer
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import signal
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import sys
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import urllib2
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import mimetypes
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peers = {}
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from tornado.httpserver import HTTPServer
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from tornado.ioloop import IOLoop, PeriodicCallback
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from tornado.web import Application
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import tornado
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NETBASE='http://[::1]:8842/'
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NAME = 'chat'
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import websocket
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from websocket import trigger_event
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import state
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from tasks import Tasks
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from utils import json_dumps
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import link
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def remote(peer, action, data):
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url = NETBASE + '%s/%s/%s' % (peer, NAME, action)
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if data and not isinstance(data, str):
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data = json.dumps(data)
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opener = urllib2.build_opener()
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req = urllib2.Request(url, data=data, headers={
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'Content-Type': 'application/json',
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'User-Agent': 'ChatServer/0.0'
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})
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response = opener.open(req)
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return response.read()
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import logging
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logger = logging.getLogger('server')
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root_dir = os.path.normpath(os.path.abspath(os.path.dirname(__file__)))
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STATIC_PATH = os.path.join(root_dir, 'static')
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def add_service(name, url):
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add = NETBASE + 'add'
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urllib2.urlopen(add, json.dumps({'name': name, 'url': url}))
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class BaseHandler(tornado.web.RequestHandler):
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class Handler(SimpleHTTPServer.SimpleHTTPRequestHandler):
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def do_GET(self):
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print 'GET', self.path
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path = os.path.join('static', self.path[1:] if self.path != '/' else 'index.html')
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def serve_static(self, path, mimetype=None, include_body=True):
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if not mimetype:
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mimetype = mimetypes.guess_type(path)[0]
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logging.debug('serve %s', path)
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if os.path.exists(path):
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self.set_header('Content-Type', mimetype)
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self.set_header('Content-Length', str(os.stat(path).st_size))
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if include_body:
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with open(path) as fd:
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shutil.copyfileobj(fd, self.wfile)
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self.write(fd.read())
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else:
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self.set_status(404)
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return
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def _remote_request(self, action, data):
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response = {}
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if action == 'message':
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pass
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elif action == 'ping':
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print self.headers
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response['userid'] = self.headers.getheader('From')
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response['remote ping'] = True
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response['data'] = data
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return response
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def render_json(self, response):
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response = json_dumps(response)
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self.set_header('Content-Type', 'application/json')
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self.set_header('Content-Length', str(len(response)))
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self.write(response)
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self.finish()
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def _request(self, action, data):
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class RemoteHandler(BaseHandler):
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def post(self, action):
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data = json.loads(self.request.body)
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response = {}
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if action == 'test':
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response['test'] = 'ok'
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response['data'] = data
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elif action in ('ping', 'pong'):
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print ('GOT remote request', action, data)
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if action == 'info':
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response = state.info
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elif action == 'message':
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data['from'] = self.request.headers['From']
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trigger_event(action, data)
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else:
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response = {'error': 'unknown action'}
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return self.render_json(response)
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class MainHandler(BaseHandler):
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def get(self, path):
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path = path[1:]
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if not path:
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path = 'index.html'
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path = os.path.join(STATIC_PATH, path)
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self.serve_static(path)
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def post(self, path):
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action = path.split('/')[1]
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data = json.loads(self.request.body)
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response = {}
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if action in ('info', 'ping'):
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if 'id' in data:
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id = data['id']
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del data['id']
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response = remote(id, action, data)
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return response
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def do_POST(self):
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print 'POST', self.path
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length = int(self.headers.getheader('content-length'))
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body = self.rfile.read(length)
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data = json.loads(body)
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if self.path.startswith('/remote'):
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action = self.path.split('/')[2]
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response = self._remote_request(action, data)
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else:
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action = self.path.split('/')[1]
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response = self._request(action, data)
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response = json.dumps(response, indent=2)
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self.send_response(200)
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self.send_header('Content-Type', 'application/json')
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self.send_header('Content-Length', str(len(response)))
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self.end_headers()
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self.wfile.write(response)
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class Server(SocketServer.ThreadingMixIn, SocketServer.TCPServer):
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'''
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IPv4/IPv6 Dual Stack
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'''
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address_family = socket.AF_INET6
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allow_reuse_address = True
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def server_bind(self):
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self.socket.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, False)
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SocketServer.TCPServer.server_bind(self)
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response = link.remote_json(id, action, data)
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return self.render_json(response)
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if __name__ == '__main__':
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if len(sys.argv) == 2:
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port = int(sys.argv[1])
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else:
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address = ''
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port = 8000
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print "listening on port", port
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url = 'http://127.0.0.1:%s/remote/' % port
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add_service(NAME, url)
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httpd = Server(("", port), Handler)
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httpd.serve_forever()
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if len(sys.argv) > 1:
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port = int(sys.argv[1])
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link.PEERLINK=sys.argv[2]
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logging.basicConfig(level=logging.DEBUG)
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options = {
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'debug': True,
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}
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handlers = [
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(r'/ws', websocket.Handler),
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(r"/remote/(.*)", RemoteHandler),
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(r"(.*)", MainHandler),
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]
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http_server = HTTPServer(Application(handlers, **options))
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http_server.listen(port, address)
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state.tasks = Tasks()
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state.main = IOLoop.instance()
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state._status = PeriodicCallback(lambda: state.info.update(link.post('info')), 60000)
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state._status.start()
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if ':' in address:
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host = '[%s]' % address
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elif not address:
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host = '[::1]'
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else:
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host = address
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url = 'http://%s:%s/' % (host, port)
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link.add('chat', url + 'remote/')
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state.info = link.post('info')
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print('listening at %s' % url)
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def shutdown():
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state.tasks.join()
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http_server.stop()
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signal.signal(signal.SIGTERM, shutdown)
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try:
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state.main.start()
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except:
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print('shutting down...')
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shutdown()
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4
example/state.py
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4
example/state.py
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websockets = []
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tasks = None
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info = {}
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peers = []
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90
example/static/chat.js
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90
example/static/chat.js
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var names = {};
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Ox.load(function() {
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var app = window.app = {};
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app.triggerEvent = function(action, data) {
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if (action == 'info') {
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Ox.$('#id').html(data.id);
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Ox.$('#nick').val(data.nick || '');
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var peers = Ox.$('#peers');
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peers.empty()
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data.local.forEach(function(peer) {
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console.log('add', peer);
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if (names[peer]) {
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Ox.$('<div>')
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.html(peer + '(' + names[peer] +')')
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.appendTo(peers);
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} else {
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app.getNick(peer, function(nick) {
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var html = peer;
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if(nick) {
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html = peer + '(' + nick +')';
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}
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Ox.$('<div>')
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.html(html)
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.appendTo(peers);
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});
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}
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});
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} else if (action == 'message') {
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var html = (names[data.from] || data.from) + ': ' + data.message;
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Ox.$('<div>').html(html).appendTo(Ox.$('#messages'));
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}
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Ox.print(action, data);
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};
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app.socket = new WebSocket('ws://' + document.location.host + '/ws');
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app.socket.onopen = function(event) {
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app.triggerEvent('open', event);
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};
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app.socket.onmessage = function(event) {
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var data = JSON.parse(event.data);
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app.triggerEvent(data[0], data[1]);
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};
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app.socket.onerror = function(event) {
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app.triggerEvent('error', event);
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app.socket.close();
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};
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app.socket.onclose = function(event) {
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app.triggerEvent('close', event);
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setTimeout(connectSocket, 1000);
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};
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app.request = function(action, data, callback) {
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var xhr = new XMLHttpRequest();
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xhr.onload = function() {
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try {
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var response = JSON.parse(this.response);
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callback && callback(response);
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} catch(e) {
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Ox.print('FAIL', this.response);
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}
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}
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xhr.open('POST', '/' + action);
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data = JSON.stringify(data);
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xhr.send(data);
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};
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app.api = function(action, data) {
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console.log('api', action, data);
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app.socket.send(JSON.stringify([action, data]));
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};
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Ox.$('#send').on({
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click: function() {
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var value = Ox.$('#message').val();
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if (value) {
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app.api('sendMessage', {
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message: value
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});
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}
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}
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})
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app.getNick = function(peer, callback) {
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app.request('info', {id: peer}, function(response) {
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names[peer] = response.nick;
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callback(response.nick);
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});
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}
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Ox.$('#nick').on({
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change: function() {
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app.api('nick', this.value);
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}
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});
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});
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<meta charset="utf-8" />
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<title></title>
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<style>
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</style>
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<script src="https://oxjs.org/build/Ox.js"></script>
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<script>
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Ox.load(function() {
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var app = window.app = {};
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app.request = function(action, data, callback) {
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data = JSON.stringify(data);
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var xhr = new XMLHttpRequest();
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xhr.open('POST', '/' + action, true);
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xhr.onload = function() {
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var response = JSON.parse(this.response);
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callback(response)
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};
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xhr.onerror = function(error) {
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callback(null, error);
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#messages {
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}
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xhr.setRequestHeader('Content-Type', 'application/json');
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xhr.send(data);
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};
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});
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</script>
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</style>
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<script src="http://localhost/oxjs/build/Ox.js"></script>
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<script src="/chat.js"></script>
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</head>
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<body>
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Nick: <input id="nick" type="text"></input>(<span id="id"></span>)<br>
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Peers:
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<div id="peers"></div>
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<textarea id="message" type="text"></textarea><br/>
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<input id="send" type="button" value="Send"></input>
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<br>
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Message:<br/>
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<div id="messages"></div>
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</body>
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</html>
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49
example/tasks.py
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49
example/tasks.py
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# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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from __future__ import division
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from Queue import Queue
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from threading import Thread
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from websocket import trigger_event
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import state
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import link
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import logging
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logger = logging.getLogger('websocket')
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class Tasks(Thread):
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_active = True
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def __init__(self):
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self.q = Queue()
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Thread.__init__(self)
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self.daemon = True
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self.start()
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def run(self):
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while self._active:
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m = self.q.get()
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if m:
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action, data = m
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logger.debug('process task: %s data: %s', action, data)
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if action == 'sendMessage':
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for peer in state.info.get('nodes', []):
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link.remote(peer, 'message', data)
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elif action == 'nick':
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state.info['nick'] = data
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for peer in state.info.get('nodes', []):
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link.remote(peer, 'nick', data)
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self.q.task_done()
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def join(self):
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self._active = False
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self.q.put(None)
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self.q.join()
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return Thread.join(self)
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def queue(self, action, data=None):
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self.q.put((action, data))
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14
example/utils.py
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14
example/utils.py
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import json
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import datetime
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def _to_json(python_object):
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if isinstance(python_object, datetime.datetime):
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if python_object.year < 1900:
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tt = python_object.timetuple()
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return '%d-%02d-%02dT%02d:%02d%02dZ' % tuple(list(tt)[:6])
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return python_object.strftime('%Y-%m-%dT%H:%M:%SZ')
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raise TypeError(u'%s %s is not JSON serializable' % (repr(python_object), type(python_object)))
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def json_dumps(obj):
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indent = 2
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return json.dumps(obj, indent=indent, default=_to_json, ensure_ascii=False).encode('utf-8')
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54
example/websocket.py
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54
example/websocket.py
Normal file
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# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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from __future__ import division
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from tornado.websocket import WebSocketHandler
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from tornado.ioloop import IOLoop
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import json
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import state
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import link
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from utils import json_dumps
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import logging
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logger = logging.getLogger('websocket')
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class Handler(WebSocketHandler):
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def check_origin(self, origin):
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# allow access to websocket from site, installer and loader (local file)
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return self.request.host in origin \
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or origin == 'null'
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def open(self):
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if self.request.headers['origin'] not in ('null',) \
|
||||
and self.request.host not in self.request.headers['origin']:
|
||||
logger.debug('reject cross site attempt to open websocket %s', self.request)
|
||||
self.close()
|
||||
if self not in state.websockets:
|
||||
state.websockets.append(self)
|
||||
state.info.update(link.post('info'))
|
||||
self.post('info', state.info)
|
||||
#websocket calls
|
||||
def on_message(self, message):
|
||||
action, data = json.loads(message)
|
||||
if state.tasks:
|
||||
state.tasks.queue(action, data)
|
||||
|
||||
def on_close(self):
|
||||
if self in state.websockets:
|
||||
state.websockets.remove(self)
|
||||
|
||||
def post(self, event, data):
|
||||
message = json_dumps([event, data])
|
||||
main = IOLoop.instance()
|
||||
main.add_callback(lambda: self.write_message(message))
|
||||
|
||||
def trigger_event(event, data):
|
||||
if len(state.websockets):
|
||||
logger.debug('trigger event %s %s %s', event, data, len(state.websockets))
|
||||
for ws in state.websockets:
|
||||
try:
|
||||
ws.post(event, data)
|
||||
except:
|
||||
logger.debug('failed to send to ws %s %s %s', ws, event, data, exc_info=1)
|
||||
Loading…
Reference in a new issue