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## preferences.py - handle application preferences in system-config-users
## Copyright (C) 2006 Red Hat, Inc.
## 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., 675 Mass Ave, Cambridge, MA 02139, USA.
## Author: Nils Philippsen <nphilipp@redhat.com>
class Preferences:
defaults = {
'FILTER': True,
'ASSIGN_HIGHEST_UID': True,
'ASSIGN_HIGHEST_GID': True,
'PREFER_SAME_UID_GID': True
}
descriptions = {
'FILTER': 'Filter out system users',
'ASSIGN_HIGHEST_UID': 'Automatically assign highest UID for new users',
'ASSIGN_HIGHEST_GID': 'Automatically assign highest GID for new groups',
'PREFER_SAME_UID_GID': 'Prefer to have same UID and GID for new users'
}
def __init__ (self, filename = '/etc/sysconfig/system-config-users'):
self.preferences = self.defaults.copy ()
self.filename = filename
self.configFile = None
def __getitem__ (self, item):
return self.preferences[item]
def __setitem__ (self, item, value):
if not self.has_key (item):
raise KeyError
self.preferences[item] = value
def __delitem__ (self, item):
self.preferences[item] = self.defaults[item]
def keys (self):
return self.defaults.keys ()
def has_key (self, key):
return self.defaults.has_key (key)
def load (self):
oldprefs = self.preferences
self.preferences = self.defaults.copy ()
try:
fd = open (self.filename, 'r')
configFile = fd.readlines ()
fd.close ()
linenr = 0
for line in configFile:
line = line.strip ()
linenr += 1
if line != '' and line.lstrip ()[0] != '#':
tokens = line.split ('=')
try:
key = tokens[0]
value = tokens[1]
if key in self.keys ():
if value.lower () == "true":
self.preferences[key] = True
else:
self.preferences[key] = False
except IndexError:
print '%s[%d]: Syntax error ("%s")' % (self.configFile, linenr, line.strip ())
self.configFile = configFile
except IOError:
# no config file found, assume previous values
self.preferences = oldprefs
def save (self):
found = []
fd = open (self.filename, 'w')
if self.configFile:
for line in self.configFile:
line_str = line.strip ()
if line_str == '' or (len (line_str) and line_str[0] == '#'):
fd.write (line)
else:
tokens = line_str.split ('=')
key = tokens[0].lstrip ()
if key in self.keys ():
found.append (key)
if self[key] == True:
fd.write ("%s=true\n" % (key))
else:
fd.write ("%s=false\n" % (key))
else:
# previously no configuration file, write standard header
fd.write("# Configuration file for system-config-users\n")
fd.write("\n")
# write out defaults for non-set preferences
for key in self.keys ():
if key not in found:
fd.write ("# %s\n" % self.descriptions[key])
if self.defaults[key] == True:
fd.write ("%s=true\n" % (key))
else:
fd.write ("%s=false\n" % (key))
fd.close ()
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