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# -*- coding: utf-8 -*-
##############################################################################
#
# OpenERP, Open Source Management Solution
# Copyright (C) 2004-2009 Tiny SPRL (<http://tiny.be>).
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################
import socket
import cPickle
import sys
import options
DNS_CACHE = {}
# disable Nagle problem.
# -> http://www.cmlenz.net/archives/2008/03/python-httplib-performance-problems
realsocket = socket.socket
def socketwrap(family=socket.AF_INET, type=socket.SOCK_STREAM, proto=0):
sockobj = realsocket(family, type, proto)
sockobj.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
return sockobj
socket.socket = socketwrap
class Myexception(Exception):
def __init__(self, faultCode, faultString):
self.faultCode = faultCode
self.faultString = faultString
self.args = (faultCode, self.stripHtml(faultString))
def stripHtml(self, description):
if description.startswith("<!DOCTYPE HTML"):
part1 = description.split('<pre class="textdetails">\n')[1]
description = part1.split('</pre>')[0]
return description
class mysocket:
def __init__(self, sock=None):
if sock is None:
self.sock = socket.socket(
socket.AF_INET, socket.SOCK_STREAM)
else:
self.sock = sock
self.sock.settimeout(int(options.options['client.timeout']))
def connect(self, host, port=False):
if not port:
protocol, buf = host.split('//')
host, port = buf.split(':')
if host in DNS_CACHE:
host = DNS_CACHE[host]
self.sock.connect((host, int(port)))
DNS_CACHE[host], port = self.sock.getpeername()
def disconnect(self):
# on Mac, the connection is automatically shutdown when the server disconnect.
# see http://bugs.python.org/issue4397
if sys.platform != 'darwin':
self.sock.shutdown(socket.SHUT_RDWR)
self.sock.close()
def mysend(self, msg, exception=False, traceback=None):
msg = cPickle.dumps([msg,traceback])
self.sock.sendall('%8d%s%s' % (len(msg), exception and "1" or "0", msg))
def myreceive(self):
def read(socket, size):
buf=''
while len(buf) < size:
chunk = self.sock.recv(size - len(buf))
if chunk == '':
raise RuntimeError, "socket connection broken"
buf += chunk
return buf
size = int(read(self.sock, 8))
buf = read(self.sock, 1)
exception = buf != '0' and buf or False
res = cPickle.loads(read(self.sock, size))
if isinstance(res[0],Exception):
if exception:
raise Myexception(str(res[0]), str(res[1]))
raise res[0]
else:
return res[0]
# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
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