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98 lines
3.3 KiB
98 lines
3.3 KiB
17 years ago
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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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# $Revision$
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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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from ConfigParser import SafeConfigParser
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from ConfigParser import NoOptionError, NoSectionError
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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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files_before = 1.conf
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3.conf
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files_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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@staticmethod
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def getIncludedFiles(filename, sectionName='INCLUDES',
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defaults={}, seen=[]):
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"""
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Given 1 config filename 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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filenames = []
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#print "Opening file " + filename
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d = defaults.copy() # so that we do not poison our defaults
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parser = SafeConfigParser(defaults = d)
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parser.read(filename)
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newFiles = [ ('files_before', []), ('files_after', []) ]
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if sectionName in parser.sections():
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for option_name, option_list in newFiles:
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if option_name in parser.options(sectionName):
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newFileNames = parser.get(sectionName, option_name)
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for newFileName in newFileNames.split('\n'):
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if newFileName in seen: continue
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option_list += SafeConfigParserWithIncludes.\
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getIncludedFiles(newFileName,
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defaults=defaults,
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seen=seen + [filename])
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# combine lists
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filenames = newFiles[0][1] + [filename] + newFiles[1][1]
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#print "Includes list for " + filename + " is " + `filenames`
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return filenames
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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.\
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getIncludedFiles(filename, defaults=self._defaults)
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#print "Opening config files " + `fileNamesFull`
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return SafeConfigParser.read(self, fileNamesFull)
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