mirror of https://github.com/fail2ban/fail2ban
94 lines
2.9 KiB
Python
94 lines
2.9 KiB
Python
# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: t -*-
|
|
# vi: set ft=python sts=4 ts=4 sw=4 noet :
|
|
|
|
# This file is part of Fail2Ban.
|
|
#
|
|
# Fail2Ban is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# Fail2Ban 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 General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with Fail2Ban; if not, write to the Free Software
|
|
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
# Author: Cyril Jaquier
|
|
#
|
|
|
|
__author__ = "Cyril Jaquier"
|
|
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
|
|
__license__ = "GPL"
|
|
|
|
#from cPickle import dumps, loads, HIGHEST_PROTOCOL
|
|
from pickle import dumps, loads, HIGHEST_PROTOCOL
|
|
from ..protocol import CSPROTO
|
|
import socket
|
|
import sys
|
|
|
|
class CSocket:
|
|
|
|
def __init__(self, sock="/var/run/fail2ban/fail2ban.sock", timeout=-1):
|
|
# Create an INET, STREAMing socket
|
|
#self.csock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.__csock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
|
|
self.__deftout = self.__csock.gettimeout()
|
|
if timeout != -1:
|
|
self.settimeout(timeout)
|
|
#self.csock.connect(("localhost", 2222))
|
|
self.__csock.connect(sock)
|
|
|
|
def __del__(self):
|
|
self.close()
|
|
|
|
def send(self, msg, nonblocking=False, timeout=None):
|
|
# Convert every list member to string
|
|
obj = dumps(map(CSocket.convert, msg), HIGHEST_PROTOCOL)
|
|
self.__csock.send(obj)
|
|
self.__csock.send(CSPROTO.END)
|
|
return self.receive(self.__csock, nonblocking, timeout)
|
|
|
|
def settimeout(self, timeout):
|
|
self.__csock.settimeout(timeout if timeout != -1 else self.__deftout)
|
|
|
|
def close(self):
|
|
if not self.__csock:
|
|
return
|
|
try:
|
|
self.__csock.sendall(CSPROTO.CLOSE + CSPROTO.END)
|
|
self.__csock.shutdown(socket.SHUT_RDWR)
|
|
except socket.error: # pragma: no cover - normally unreachable
|
|
pass
|
|
try:
|
|
self.__csock.close()
|
|
except socket.error: # pragma: no cover - normally unreachable
|
|
pass
|
|
self.__csock = None
|
|
|
|
@staticmethod
|
|
def convert(m):
|
|
"""Convert every "unexpected" member of message to string"""
|
|
if isinstance(m, (basestring, bool, int, float, list, dict, set)):
|
|
return m
|
|
else: # pragma: no cover
|
|
return str(m)
|
|
|
|
@staticmethod
|
|
def receive(sock, nonblocking=False, timeout=None):
|
|
msg = CSPROTO.EMPTY
|
|
if nonblocking: sock.setblocking(0)
|
|
if timeout: sock.settimeout(timeout)
|
|
bufsize = 1024
|
|
while msg.rfind(CSPROTO.END, -32) == -1:
|
|
chunk = sock.recv(bufsize)
|
|
if not len(chunk):
|
|
raise socket.error(104, 'Connection reset by peer')
|
|
if chunk == CSPROTO.END: break
|
|
msg = msg + chunk
|
|
if bufsize < 32768: bufsize <<= 1
|
|
return loads(msg)
|