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#!/usr/bin/env python
# -*- coding: ISO-8859-15 -*-
#
# Copyright (C) 2005-2007 David Guerizec <david@guerizec.net>
#
# Last modified: 2007 Dec 08, 20:11:32 by david
#
# This program 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.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
import os, os.path
from sshproxy.config import ConfigSection, path, get_config
from sshproxy.acl import ACLDB
from sshproxy import log
class FileACLConfigSection(ConfigSection):
section_id = 'acl_db.ini'
section_defaults = {
'file': '@acl.db',
}
types = {
'file': path,
}
FileACLConfigSection.register()
class FileACLDB(ACLDB):
def load_rules(self):
rulefile = get_config('acl_db.ini')['file']
if not os.path.exists(rulefile):
open(rulefile, 'w').close()
os.chmod(rulefile, 0600)
# no need to parse an empty file
return None
fd = open(rulefile)
nline = []
line = []
for linepart in fd.readlines():
if not linepart.strip() or linepart.strip()[0] == '#':
continue
if linepart[0] not in (' ', '\t'):
nline = [ linepart.strip() ]
if not line:
line = nline
continue
else:
line.append(linepart.strip())
continue
try:
acl, rule = (' '.join(line)).split(':', 1)
if rule is None or not rule.strip():
raise ValueError
except ValueError:
# drop rule, it won't parse anyway
log.warning('Dropped unparseable rule %s' % acl)
line = nline
continue
self.add_rule(acl=acl, rule=rule.lstrip())
line = nline
if line:
try:
acl, rule = (' '.join(line)).split(':', 1)
if rule is None or not rule.strip():
raise ValueError
self.add_rule(acl=acl, rule=rule.lstrip())
except ValueError:
# drop rule, it won't parse anyway
log.warning('Dropped unparseable rule %s' % acl)
pass
fd.close()
def save_rules(self):
rulefile = get_config('acl_db.ini')['file']
if not os.path.exists(rulefile):
open(rulefile, 'w').close()
fd = open(rulefile+'.new', 'w')
for acl in self.rules.keys():
for rule in self.rules[acl]:
fd.write('%s:\n %s\n\n'
% (acl, rule.rule.replace('\n', '\n ')))
fd.close()
os.rename(rulefile+'.new', rulefile)
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