#-*- coding:utf8 -*-
import threading
import hashlib
import socket
import base64
global clients
clients = {}
#通知客户端
def notify(message):
for connection in clients.values():
connection.send('%c%c%s' % (0x81, len(message), message))
#客户端处理线程
class websocket_thread(threading.Thread):
def __init__(self, connection, username):
super(websocket_thread, self).__init__()
self.connection = connection
self.username = username
def run(self):
print 'new websocket client joined!'
data = self.connection.recv(1024)
headers = self.parse_headers(data)
token = self.generate_token(headers['Sec-WebSocket-Key'])
self.connection.send('\
HTTP/1.1 101 WebSocket Protocol Hybi-10\r\n\
Upgrade: WebSocket\r\n\
Connection: Upgrade\r\n\
Sec-WebSocket-Accept: %s\r\n\r\n' % token)
while True:
try:
data = self.connection.recv(1024)
except socket.error, e:
print "unexpected error: ", e
clients.pop(self.username)
break
data = self.parse_data(data)
if len(data) == 0:
continue
message = self.username + ": " + data
notify(message)
def parse_data(self, msg):
v = ord(msg[1]) & 0x7f
if v == 0x7e:
p = 4
elif v == 0x7f:
p = 10
else:
p = 2
mask = msg[p:p+4]
data = msg[p+4:]
return ''.join([chr(ord(v) ^ ord(mask[k%4])) for k, v in enumerate(data)])
def parse_headers(self, msg):
headers = {}
header, data = msg.split('\r\n\r\n', 1)
for line in header.split('\r\n')[1:]:
key, value = line.split(': ', 1)
headers[key] = value
headers['data'] = data
return headers
def generate_token(self, msg):
key = msg + '258EAFA5-E914-47DA-95CA-C5AB0DC85B11'
ser_key = hashlib.sha1(key).digest()
return base64.b64encode(ser_key)
#服务端
class websocket_server(threading.Thread):
def __init__(self, port):
super(websocket_server, self).__init__()
self.port = port
def run(self):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(('127.0.0.1', self.port))
sock.listen(5)
print 'websocket server started!'
while True:
connection, address = sock.accept()
try:
username = "ID" + str(address[1])
thread = websocket_thread(connection, username)
thread.start()
clients[username] = connection
except socket.timeout:
print 'websocket connection timeout!'
if __name__ == '__main__':
server = websocket_server(9000)
server.start()