mirror of https://github.com/fail2ban/fail2ban
166 lines
3.9 KiB
Python
166 lines
3.9 KiB
Python
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# 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: 504 $
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__author__ = "Cyril Jaquier"
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__version__ = "$Revision: 504 $"
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__date__ = "$Date: 2006-12-23 17:37:17 +0100 (Sat, 23 Dec 2006) $"
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__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
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__license__ = "GPL"
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from jail import Jail
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from threading import Lock
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##
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# Handles the jails.
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#
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# This class handles the jails. Creation, deletion or access to a jail must be
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# done through this class. This class is thread-safe which is not the case of
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# the jail itself, including filter and actions.
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class Jails:
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##
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# Constructor.
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def __init__(self):
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self.__lock = Lock()
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self.__jails = dict()
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##
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# Adds a jail.
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#
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# Adds a new jail which should use the given backend. Raises a
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# <code>DuplicateJailException</code> if the jail is already defined.
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# @param name The name of the jail
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# @param backend The backend to use
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def add(self, name, backend):
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try:
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self.__lock.acquire()
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if self.__jails.has_key(name):
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raise DuplicateJailException(name)
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else:
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self.__jails[name] = Jail(name, backend)
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finally:
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self.__lock.release()
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##
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# Removes a jail.
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#
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# Removes the jail <code>name</code>. Raise an <code>UnknownJailException</code>
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# if the jail does not exist.
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# @param name The name of the jail
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def remove(self, name):
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try:
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self.__lock.acquire()
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if self.__jails.has_key(name):
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del self.__jails[name]
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else:
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raise UnknownJailException(name)
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finally:
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self.__lock.release()
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##
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# Returns a jail.
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#
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# Returns the jail <code>name</code>. Raise an <code>UnknownJailException</code>
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# if the jail does not exist.
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# @param name The name of the jail
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def get(self, name):
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try:
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self.__lock.acquire()
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if self.__jails.has_key(name):
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jail = self.__jails[name]
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return jail
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else:
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raise UnknownJailException(name)
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finally:
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self.__lock.release()
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##
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# Returns an action class instance.
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#
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# Returns the action object of the jail <code>name</code>. Raise an
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# <code>UnknownJailException</code> if the jail does not exist.
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# @param name The name of the jail
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def getAction(self, name):
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try:
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self.__lock.acquire()
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if self.__jails.has_key(name):
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action = self.__jails[name].getAction()
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return action
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else:
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raise UnknownJailException(name)
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finally:
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self.__lock.release()
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##
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# Returns a filter class instance.
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#
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# Returns the filter object of the jail <code>name</code>. Raise an
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# <code>UnknownJailException</code> if the jail does not exist.
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# @param name The name of the jail
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def getFilter(self, name):
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try:
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self.__lock.acquire()
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if self.__jails.has_key(name):
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action = self.__jails[name].getFilter()
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return action
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else:
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raise UnknownJailException(name)
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finally:
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self.__lock.release()
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##
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# Returns the jails.
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#
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# Returns a copy of the jails list.
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def getAll(self):
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try:
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self.__lock.acquire()
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return self.__jails.copy()
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finally:
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self.__lock.release()
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##
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# Returns the size of the jails.
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#
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# Returns the number of jails.
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def size(self):
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try:
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self.__lock.acquire()
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return len(self.__jails)
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finally:
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self.__lock.release()
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class DuplicateJailException(Exception):
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pass
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class UnknownJailException(Exception):
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pass
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