path: root/ipa-admintools/ipa-addradiusclient

#! /usr/bin/python -E
# 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 sys
from optparse import OptionParser
import ipa
import ipa.radius_client
import ipa.ipaclient as ipaclient
import ipa.ipavalidate as ipavalidate
import ipa.config
import ipa.ipaerror

import xmlrpclib
import kerberos
import ldap
import getpass
import re

#------------------------------------------------------------------------------

dotted_octet_RE = re.compile(r"^(\d+)\.(\d+)\.(\d+)\.(\d+)(/(\d+))?$")
dns_RE = re.compile(r"^[a-zA-Z.-]+$")
# 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 is required and must be dotted octet with optional mask or a DNS name"
valid_desc_msg = "Description must text string"

#------------------------------------------------------------------------------

def usage():
    print "ipa-addradiusclient"
    sys.exit(1)

def parse_options():
    parser = OptionParser()
    parser.add_option("--usage", action="store_true",
                      help="Program usage")
    parser.add_option("-a", "--address", dest="ip_addr",
                      help="RADIUS client IP address")
    parser.add_option("-s", "--secret", dest="secret",
                      help="RADIUS client secret")
    parser.add_option("-n", "--name", dest="name",
                      help="RADIUS client name")
    parser.add_option("-t", "--type", dest="nastype",
                      help="RADIUS client name")
    parser.add_option("-d", "--description", dest="desc", 
                      help="description of the RADIUS client")

    args = ipa.config.init_config(sys.argv)
    options, args = parser.parse_args(args)

    return options, args

#------------------------------------------------------------------------------

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, dot and hypen
        if dns_RE.search(text): return False
    return True

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 validate_ip_addr(ip_addr):
    if not validate_length(ip_addr, valid_ip_addr_len):
        print valid_length_msg('ip address', valid_ip_addr_len)
        return False
    if not valid_ip_addr(ip_addr):
        print valid_ip_addr_msg
        return False
    return True

def validate_secret(secret):
    if not validate_length(secret, valid_secret_len):
        print valid_length_msg('secret', valid_secret_len)
        return False
    return True

def validate_name(name):
    if not validate_length(name, valid_name_len):
        print valid_length_msg('name', valid_name_len)
        return False
    return True

def validate_nastype(nastype):
    if not validate_length(nastype, valid_nastype_len):
        print valid_length_msg('NAS Type', valid_nastype_len)
        return False
    return True

def validate_desc(desc):
    if ipavalidate.plain(desc, notEmpty=True) != 0:
        print valid_desc_msg
        return False
    return True

#------------------------------------------------------------------------------

def main():
    ip_addr = None
    secret = None
    name = None
    nastype = None
    desc = None

    radius_client = ipa.radius_client.RadiusClient()
    options, args = parse_options()

    # client address is required
    if options.ip_addr:
        ip_addr = options.ip_addr
        if not validate_ip_addr(ip_addr): return 1
    else:
        valid = False
        while not valid:
            ip_addr = raw_input("Client IP: ")
            if validate_ip_addr(ip_addr): valid = True

    # client secret is required
    if options.secret:
        secret = options.secret
        if not validate_secret(secret): return 1
    else:
        valid = False
        while not valid:
            secret = get_secret()
            if validate_secret(secret): valid = True
                
    # client name is optional
    if options.name:
        name = options.name
        if not validate_name(name): return 1

    # client NAS Type is optional
    if options.nastype:
        nastype = options.nastype
        if not validate_nastype(nastype): return 1
        
    # client description is optional
    if options.desc:
        desc = options.desc
        if not validate_desc(desc): return 1
        

    #print "ip_addr=%s secret=%s name=%s nastype=%s desc=%s" % (ip_addr, secret, name, nastype, desc)

    if ip_addr is not None:
        radius_client.setValue('radiusClientNASIpAddress', ip_addr)
    else:
        print "client IP Address is required"
        return 1

    if secret is not None:
        radius_client.setValue('radiusClientSecret', secret)
    else:
        print "client secret is required"
        return 1

    if name is not None:
        radius_client.setValue('radiusClientShortName', name)

    if nastype is not None:
        radius_client.setValue('radiusClientNASType', nastype)
       
    if desc is not None:
        radius_client.setValue('description', desc)
       
    try:
        ipa_client = ipaclient.IPAClient()
        ipa_client.add_radius_client(radius_client)
        print "successfully added"
    except xmlrpclib.Fault, f:
        print f.faultString
        return 1
    except kerberos.GSSError, e:
        print "Could not initialize GSSAPI: %s/%s" % (e[0][0][0], e[0][1][0])
        return 1
    except xmlrpclib.ProtocolError, e:
        print "Unable to connect to IPA server: %s" % (e.errmsg)
        return 1
    except ipa.ipaerror.IPAError, e:
        print "%s" % (e.message)
        return 1

    return 0

if __name__ == "__main__":
    sys.exit(main())