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# Authors: John Dennis <jdennis@redhat.com>
#
# Copyright (C) 2007 Red Hat
# see file 'COPYING' for use and warranty information
#
# 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; version 2 only
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
import getpass
import re
from ipa.entity import Entity
import ipa.ipavalidate as ipavalidate
__all__ = ['RadiusClient',
'get_secret',
'validate_ip_addr',
'validate_secret',
'validate_name',
'validate_nastype',
'validate_desc',
'validate',
]
#------------------------------------------------------------------------------
dotted_octet_re = re.compile(r"^(\d+)\.(\d+)\.(\d+)\.(\d+)(/(\d+))?$")
dns_re = re.compile(r"^[a-zA-Z][a-zA-Z0-9.-]+$")
# secret, name, nastype all have 31 char max in freeRADIUS, max ip address len is 255
valid_secret_len = (1,31)
valid_name_len = (1,31)
valid_nastype_len = (1,31)
valid_ip_addr_len = (1,255)
valid_ip_addr_msg = '''\
IP address must be either a DNS name (letters,digits,dot,hyphen, beginning with
a letter),or a dotted octet followed by an optional mask (e.g 192.168.1.0/24)'''
valid_desc_msg = "Description must text string"
#------------------------------------------------------------------------------
class RadiusClient(Entity):
def __init2__(self):
pass
#------------------------------------------------------------------------------
def get_secret():
valid = False
while (not valid):
secret = getpass.getpass("Enter Secret: ")
confirm = getpass.getpass("Confirm Secret: ")
if (secret != confirm):
print "Secrets do not match"
continue
valid = True
return secret
#------------------------------------------------------------------------------
def valid_ip_addr(text):
# is it a dotted octet? If so there should be 4 integers seperated
# by a dot and each integer should be between 0 and 255
# there may be an optional mask preceded by a slash (e.g. 1.2.3.4/24)
match = dotted_octet_re.search(text)
if match:
# dotted octet notation
i = 1
while i <= 4:
octet = int(match.group(i))
if octet > 255: return False
i += 1
if match.group(5):
mask = int(match.group(6))
if mask <= 32:
return True
else:
return False
return True
else:
# DNS name, can contain letters, numbers, dot and hypen, must start with a letter
if dns_re.search(text): return True
return False
def validate_length(value, limits):
length = len(value)
if length < limits[0] or length > limits[1]:
return False
return True
def valid_length_msg(name, limits):
return "%s length must be at least %d and not more than %d" % (name, limits[0], limits[1])
def err_msg(variable, variable_name=None):
if variable_name is None: variable_name = 'value'
print "ERROR: %s = %s" % (variable_name, variable)
#------------------------------------------------------------------------------
def validate_ip_addr(ip_addr, variable_name=None):
if not validate_length(ip_addr, valid_ip_addr_len):
err_msg(ip_addr, variable_name)
print valid_length_msg('ip address', valid_ip_addr_len)
return False
if not valid_ip_addr(ip_addr):
err_msg(ip_addr, variable_name)
print valid_ip_addr_msg
return False
return True
def validate_secret(secret, variable_name=None):
if not validate_length(secret, valid_secret_len):
err_msg(secret, variable_name)
print valid_length_msg('secret', valid_secret_len)
return False
return True
def validate_name(name, variable_name=None):
if not validate_length(name, valid_name_len):
err_msg(name, variable_name)
print valid_length_msg('name', valid_name_len)
return False
return True
def validate_nastype(nastype, variable_name=None):
if not validate_length(nastype, valid_nastype_len):
err_msg(nastype, variable_name)
print valid_length_msg('NAS Type', valid_nastype_len)
return False
return True
def validate_desc(desc, variable_name=None):
if ipavalidate.plain(desc, notEmpty=True) != 0:
print valid_desc_msg
return False
return True
def validate(attribute, value):
if attribute == 'Client-IP-Address':
return validate_ip_addr(value, attribute)
if attribute == 'Secret':
return validate_secret(value, attribute)
if attribute == 'NAS-Type':
return validate_nastype(value, attribute)
if attribute == 'Name':
return validate_name(value, attribute)
if attribute == 'Description':
return validate_desc(value, attribute)
return True
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