#!/usr/bin/python # 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # Author: Cyril Jaquier # # $Revision$ __author__ = "Cyril Jaquier" __version__ = "$Revision$" __date__ = "$Date$" __copyright__ = "Copyright (c) 2004 Cyril Jaquier" __license__ = "GPL" import getopt, sys, logging from common.version import version from server.server import Server # Inserts our own modules path first in the list # fix for bug #343821 sys.path.insert(1, "/usr/share/fail2ban") # Gets the instance of the logger. logSys = logging.getLogger("fail2ban") ## # \mainpage Fail2Ban # # \section Introduction # # Fail2ban is designed to protect your server against brute force attacks. # Its first goal was to protect a SSH server. class Fail2banServer: def __init__(self): self.__server = None self.__argv = None self.__conf = dict() self.__conf["background"] = True self.__conf["force"] = False self.__conf["socket"] = "/var/run/fail2ban/fail2ban.sock" def dispVersion(self): print "Fail2Ban v" + version print print "Copyright (c) 2004-2006 Cyril Jaquier" print "Copyright of modifications held by their respective authors." print "Licensed under the GNU General Public License v2 (GPL)." print print "Written by Cyril Jaquier ." print "Many contributions by Yaroslav O. Halchenko ." def dispUsage(self): """ Prints Fail2Ban command line options and exits """ print "Usage: "+self.__argv[0]+" [OPTIONS]" print print "Fail2Ban v" + version + " reads log file that contains password failure report" print "and bans the corresponding IP addresses using firewall rules." print print "Only use this command for debugging purpose. Start the server with" print "fail2ban-client instead. The default behaviour is to start the server" print "in background." print print "Options:" print " -b start in background" print " -f start in foreground" print " -s socket path" print " -x force execution of the server (remove socket file)" print " -h, --help display this help message" print " -V, --version print the version" print print "Report bugs to " def __getCmdLineOptions(self, optList): """ Gets the command line options """ for opt in optList: if opt[0] == "-b": self.__conf["background"] = True if opt[0] == "-f": self.__conf["background"] = False if opt[0] == "-s": self.__conf["socket"] = opt[1] if opt[0] == "-x": self.__conf["force"] = True if opt[0] in ["-h", "--help"]: self.dispUsage() sys.exit(0) if opt[0] in ["-V", "--version"]: self.dispVersion() sys.exit(0) def start(self, argv): # Command line options self.__argv = argv # Reads the command line options. try: cmdOpts = 'bfs:xhV' cmdLongOpts = ['help', 'version'] optList, args = getopt.getopt(self.__argv[1:], cmdOpts, cmdLongOpts) except getopt.GetoptError: self.dispUsage() sys.exit(-1) self.__getCmdLineOptions(optList) try: self.__server = Server(self.__conf["background"]) self.__server.start(self.__conf["socket"], self.__conf["force"]) return True except Exception, e: logSys.exception(e) self.__server.quit() return False if __name__ == "__main__": server = Fail2banServer() if server.start(sys.argv): sys.exit(0) else: sys.exit(-1)