bin/tiny_socket.py

   1 ##############################################################################
   2 #
   3 # Copyright (c) 2004-2008 Tiny SPRL (http://tiny.be) All Rights Reserved.
   4 #
   5 # $Id$
   6 #
   7 # WARNING: This program as such is intended to be used by professional
   8 # programmers who take the whole responsability of assessing all potential
   9 # consequences resulting from its eventual inadequacies and bugs
  10 # End users who are looking for a ready-to-use solution with commercial
  11 # garantees and support are strongly adviced to contract a Free Software
  12 # Service Company
  13 #
  14 # This program is Free Software; you can redistribute it and/or
  15 # modify it under the terms of the GNU General Public License
  16 # as published by the Free Software Foundation; either version 2
  17 # of the License, or (at your option) any later version.
  18 #
  19 # This program is distributed in the hope that it will be useful,
  20 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 # GNU General Public License for more details.
  23 #
  24 # You should have received a copy of the GNU General Public License
  25 # along with this program; if not, write to the Free Software
  26 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  27 ###############################################################################
  28 import socket
  29 import cPickle
  30 import marshal
  31
  32 class Myexception(Exception):
  33         def __init__(self, faultCode, faultString):
  34                 self.faultCode = faultCode
  35                 self.faultString = faultString
  36                 self.args = (faultCode, faultString)
  37
  38 class mysocket:
  39         def __init__(self, sock=None):
  40                 if sock is None:
  41                         self.sock = socket.socket(
  42                         socket.AF_INET, socket.SOCK_STREAM)
  43                 else:
  44                         self.sock = sock
  45                 self.sock.settimeout(120)
  46         def connect(self, host, port=False):
  47                 if not port:
  48                         protocol, buf = host.split('//')
  49                         host, port = buf.split(':')
  50                 self.sock.connect((host, int(port)))
  51         def disconnect(self):
  52                 self.sock.shutdown(socket.SHUT_RDWR)
  53                 self.sock.close()
  54         def mysend(self, msg, exception=False, traceback=None):
  55                 msg = cPickle.dumps([msg,traceback])
  56                 size = len(msg)
  57                 self.sock.send('%8d' % size)
  58                 self.sock.send(exception and "1" or "0")
  59                 totalsent = 0
  60                 while totalsent < size:
  61                         sent = self.sock.send(msg[totalsent:])
  62                         if sent == 0:
  63                                 raise RuntimeError, "socket connection broken"
  64                         totalsent = totalsent + sent
  65         def myreceive(self):
  66                 buf=''
  67                 while len(buf) < 8:
  68                         chunk = self.sock.recv(8 - len(buf))
  69                         if chunk == '':
  70                                 raise RuntimeError, "socket connection broken"
  71                         buf += chunk
  72                 size = int(buf)
  73                 buf = self.sock.recv(1)
  74                 if buf != "0":
  75                         exception = buf
  76                 else:
  77                         exception = False
  78                 msg = ''
  79                 while len(msg) < size:
  80                         chunk = self.sock.recv(size-len(msg))
  81                         if chunk == '':
  82                                 raise RuntimeError, "socket connection broken"
  83                         msg = msg + chunk
  84                 res = cPickle.loads(msg)
  85                 if isinstance(res[0],Exception):
  86                         if exception:
  87                                 raise Myexception(str(res[0]), str(res[1]))
  88                         raise res[0]
  89                 else:
  90                         return res[0]