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Current Path : /usr/bin/
Linux boscustweb5003.eigbox.net 5.4.91 #1 SMP Wed Jan 20 18:10:28 EST 2021 x86_64
Current File : //usr/bin/fail2ban-server
#!/usr/bin/python3
# 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"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"

import getopt
import os
import sys

from fail2ban.version import version
from fail2ban.server.server import Server
from fail2ban.helpers import getLogger

# Gets the instance of the logger.
logSys = 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"
		self.__conf["pidfile"] = "/var/run/fail2ban/fail2ban.pid"

	def dispVersion(self):
		print("Fail2Ban v" + version)
		print()
		print("Copyright (c) 2004-2008 Cyril Jaquier, 2008- Fail2Ban Contributors")
		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 <cyril.jaquier@fail2ban.org>.")
		print("Many contributions by Yaroslav O. Halchenko <debian@onerussian.com>.")

	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 <FILE>            socket path")
		print("    -p <FILE>            pidfile 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 https://github.com/fail2ban/fail2ban/issues")

	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] == "-p":
				self.__conf["pidfile"] = 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:p: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["pidfile"],
								self.__conf["force"])
			return True
		except Exception as 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)
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