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104 lines
3.0 KiB
104 lines
3.0 KiB
# This file is part of Fail2Ban.
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#
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# Fail2Ban is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# Fail2Ban is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Fail2Ban; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# Author: Cyril Jaquier
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#
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# $Revision: 1.1 $
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__author__ = "Cyril Jaquier"
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__version__ = "$Revision: 1.1 $"
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__date__ = "$Date: 2004/10/10 13:33:40 $"
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__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
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__license__ = "GPL"
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from threading import Thread
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import socket, time, logging, pickle, os, os.path
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# Gets the instance of the logger.
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logSys = logging.getLogger("fail2ban.comm")
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class SSocket(Thread):
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def __init__(self, transmitter):
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Thread.__init__(self)
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self.socketFile = "/tmp/fail2ban.sock"
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self.transmit = transmitter
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self.isRunning = False
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logSys.debug("Created SSocket")
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def initialize(self):
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# Remove socket
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if os.path.exists(self.socketFile):
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os.remove(self.socketFile)
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# Create an INET, STREAMing socket
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#self.ssock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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self.ssock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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#self.ssock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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self.ssock.setblocking(False)
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# Bind the socket to a public host and a well-known port
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#self.ssock.bind(("localhost", 2222))
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self.ssock.bind(self.socketFile)
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# Become a server socket
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self.ssock.listen(1)
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def run(self):
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self.isRunning = True
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stime = 1.0
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while self.isRunning:
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try:
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# Accept connections from outside
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(csock, address) = self.ssock.accept()
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stime /= 10
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logSys.debug("Connection accepted")
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msg = self.receive(csock)
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msg = self.transmit.proceed(msg)
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self.send(csock, msg)
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csock.close()
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except Exception:
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time.sleep(stime)
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stime += 0.05
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if stime > 1.0:
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stime = 1.0
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self.ssock.close()
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# Remove socket
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if os.path.exists(self.socketFile):
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logSys.debug("Removed socket file " + self.socketFile)
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os.remove(self.socketFile)
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logSys.debug("Socket shutdown")
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return True
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##
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# Stop the thread.
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#
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# Set the isRunning flag to False.
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# @bug It seems to be some concurrency problem with this flag
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def stop(self):
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self.isRunning = False
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def send(self, socket, msg):
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obj = pickle.dumps(msg)
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socket.send(obj + "<F2B_END_COMMAND>")
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def receive(self, socket):
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msg = ''
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while msg.rfind("<F2B_END_COMMAND>") == -1:
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chunk = socket.recv(6)
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if chunk == '':
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raise RuntimeError, "socket connection broken"
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msg = msg + chunk
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return pickle.loads(msg)
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