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112 lines
3.4 KiB
112 lines
3.4 KiB
# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: t -*-
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# vi: set ft=python sts=4 ts=4 sw=4 noet :
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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: Yaroslav Halchenko
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# Modified: Cyril Jaquier
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# $Revision$
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__author__ = 'Yaroslav Halhenko'
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__revision__ = '$Revision$'
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__date__ = '$Date$'
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__copyright__ = 'Copyright (c) 2007 Yaroslav Halchenko'
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__license__ = 'GPL'
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import logging, os
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from ConfigParser import SafeConfigParser
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# Gets the instance of the logger.
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logSys = logging.getLogger("fail2ban.client.config")
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class SafeConfigParserWithIncludes(SafeConfigParser):
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"""
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Class adds functionality to SafeConfigParser to handle included
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other configuration files (or may be urls, whatever in the future)
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File should have section [includes] and only 2 options implemented
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are 'files_before' and 'files_after' where files are listed 1 per
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line.
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Example:
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[INCLUDES]
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before = 1.conf
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3.conf
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after = 1.conf
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It is a simple implementation, so just basic care is taken about
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recursion. Includes preserve right order, ie new files are
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inserted to the list of read configs before original, and their
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includes correspondingly so the list should follow the leaves of
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the tree.
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I wasn't sure what would be the right way to implement generic (aka c++
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template) so we could base at any *configparser class... so I will
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leave it for the future
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"""
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SECTION_NAME = "INCLUDES"
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#@staticmethod
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def getIncludes(resource, seen = []):
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"""
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Given 1 config resource returns list of included files
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(recursively) with the original one as well
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Simple loops are taken care about
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"""
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# Use a short class name ;)
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SCPWI = SafeConfigParserWithIncludes
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parser = SafeConfigParser()
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parser.read(resource)
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resourceDir = os.path.dirname(resource)
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newFiles = [ ('before', []), ('after', []) ]
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if SCPWI.SECTION_NAME in parser.sections():
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for option_name, option_list in newFiles:
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if option_name in parser.options(SCPWI.SECTION_NAME):
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newResources = parser.get(SCPWI.SECTION_NAME, option_name)
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for newResource in newResources.split('\n'):
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if os.path.isabs(newResource):
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r = newResource
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else:
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r = os.path.join(resourceDir, newResource)
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if r in seen:
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continue
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s = seen + [resource]
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option_list += SCPWI.getIncludes(r, s)
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# combine lists
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return newFiles[0][1] + [resource] + newFiles[1][1]
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#print "Includes list for " + resource + " is " + `resources`
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getIncludes = staticmethod(getIncludes)
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def read(self, filenames):
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fileNamesFull = []
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if not isinstance(filenames, list):
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filenames = [ filenames ]
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for filename in filenames:
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fileNamesFull += SafeConfigParserWithIncludes.getIncludes(filename)
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logSys.debug("Reading files: %s" % fileNamesFull)
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return SafeConfigParser.read(self, fileNamesFull)
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