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# Authors: Simo Sorce <ssorce@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 or later
#
# 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 logging
import socket
import errno
import getpass
import os
import re
import fileinput
import sys
import time
from ipa import ipautil
def get_fqdn():
fqdn = ""
try:
fqdn = socket.getfqdn()
except:
try:
fqdn = socket.gethostname()
except:
fqdn = ""
return fqdn
def verify_fqdn(host_name):
if len(host_name.split(".")) < 2 or host_name == "localhost.localdomain":
raise RuntimeError("Invalid hostname: " + host_name)
def port_available(port):
"""Try to bind to a port on the wildcard host
Return 1 if the port is available
Return 0 if the port is in use
"""
rv = 1
try:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(('', port))
s.shutdown(0)
s.close()
except socket.error, e:
if e[0] == errno.EADDRINUSE:
rv = 0
if rv:
try:
s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(('', port))
s.shutdown(0)
s.close()
except socket.error, e:
if e[0] == errno.EADDRINUSE:
rv = 0
return rv
def standard_logging_setup(log_filename, debug=False):
# Always log everything (i.e., DEBUG) to the log
# file.
logging.basicConfig(level=logging.DEBUG,
format='%(asctime)s %(levelname)s %(message)s',
filename=log_filename,
filemode='w')
console = logging.StreamHandler()
# If the debug option is set, also log debug messages to the console
if debug:
console.setLevel(logging.DEBUG)
else:
# Otherwise, log critical and error messages
console.setLevel(logging.ERROR)
formatter = logging.Formatter('%(name)-12s: %(levelname)-8s %(message)s')
console.setFormatter(formatter)
logging.getLogger('').addHandler(console)
def read_password(user):
correct = False
pwd = ""
while not correct:
pwd = getpass.getpass(user + " password: ")
if not pwd:
continue
if len(pwd) < 8:
print "Password must be at least 8 characters long"
continue
pwd_confirm = getpass.getpass("Password (confirm): ")
if pwd != pwd_confirm:
print "Password mismatch!"
print ""
else:
correct = True
print ""
return pwd
def update_file(filename, orig, subst):
if os.path.exists(filename):
pattern = "%s" % re.escape(orig)
p = re.compile(pattern)
for line in fileinput.input(filename, inplace=1):
if not p.search(line):
sys.stdout.write(line)
else:
sys.stdout.write(p.sub(subst, line))
fileinput.close()
return 0
else:
print "File %s doesn't exist." % filename
return 1
def kadmin(command):
ipautil.run(["/usr/kerberos/sbin/kadmin.local", "-q", command])
def kadmin_addprinc(principal):
kadmin("addprinc -randkey " + principal)
def kadmin_modprinc(principal, options):
kadmin("modprinc " + options + " " + principal)
def create_keytab(path, principal):
try:
if ipautil.file_exists(path):
os.remove(path)
except os.error:
logging.critical("Failed to remove %s." % path)
kadmin("ktadd -k " + path + " " + principal)
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