Welcome, guest | Sign In | My Account | Store | Cart
Python, 76 lines
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
# Socket utilities class
# created by Amey R Pathak
# contains SocketServer,SocketClient classes
import socket
def Hostname():
  return socket.gethostname()
class SocketError(Exception):
  pass
class Socket:
  def __init__(self,host=Hostname(),port=10000,verbose=0):
    self.host=host
    self.port=port
    self.SocketError=SocketError()
    self.verbose=verbose
    try:
      if self.verbose:print 'SocketUtils:Creating Socket()'
      self.sock=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
    except socket.error,msg:
      raise SocketError,'Error in Socket Object Creation!!'
  def Close(self):
    if self.verbose:print 'SocketUtils:Closing socket!!'
    self.sock.close()
    if self.verbose:print 'SocketUtils:Socket Closed!!'
  def __str__(self):
    return 'SocketUtils.Socket\nSocket created on Host='+str(self.host)+',Port='+str(self.port)
class SocketServer(Socket):
  def __init__(self,host=Hostname(),port=10000,verbose=0):
    self.host,self.rhost=host,host
    self.port,self.rport=port,port
    self.verbose=verbose
    try:
      if self.verbose:print 'SocketUtils:Creating SocketServer()'
      self.sock=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
    except socket.error,msg:
      raise SocketError,'Failed to create SocketServer object!!'
    try:
      if self.verbose:print 'SocketUtils:Binding Socket()'
      self.sock.bind((self.host,self.port))
      if self.verbose:print self
    except socket.error,msg:
      raise SocketError,msg
  def Listen(self,msg='Accepted Connection from:'):
    if self.verbose:print 'Listening to port',self.port
    self.sock.listen(1)
    self.conn,self.rhost=self.sock.accept()
    self.rhost=self.rhost[0]
    if self.rhost:
      if self.verbose:print 'Got connection from',self.rhost
      print msg,self.rhost
  def Send(self,data):
    if self.verbose:print 'Sending data of size ',len(data)
    self.conn.send(data)
    if self.verbose:print 'Data sent!!'
  def Receive(self,size=1024):
    if self.verbose:print 'Receiving data...'
    return self.conn.recv(size)
  def __str__(self):
    return 'SocketUtils.SocketServer:\nSocket bound to Host='+str(self.host)+',Port='+str(self.port)
class SocketClient(Socket):
  def Connect(self,rhost=Hostname(),rport=10000):
    self.rhost,self.rport=rhost,rport
    try:
      if self.verbose:print 'Connecting to '+str(self.rhost)+' on port '+str(self.rport)
      self.sock.connect((self.rhost,self.rport))
      if self.verbose:print 'Connected !!!'
    except socket.error,msg:
      raise SocketError,'Connection refused to '+str(self.rhost)+' on port '+str(self.rport)
  def Send(self,data):
    if self.verbose:print 'Sending data of size ',len(data)
    self.sock.send(data)
    if self.verbose:print 'Data sent!!'
  def Receive(self,size=1024):
    if self.verbose:print 'Receiving data...'
    return self.sock.recv(size)
  def __str__(self):
    return 'SocketUtils.SocketClient\nClient connected to Host='+str(self.rhost)+',Port='+str(self.rport)
             

Sometimes it is required to implement a very quick and dirty client server model .. This does exactly that ..

1 comment

Roman Bogorodskiy 16 years, 6 months ago  # | flag

One might consider using python's standard SocketServer module for such purposes.

Created by Amey Pathak on Wed, 21 May 2003 (PSF)
Python recipes (4591)
Amey Pathak's recipes (1)

Required Modules

Other Information and Tasks