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#!/usr/bin/python
import sys
from optparse import OptionParser
import pysss
import SSSDConfig
import getpass
def parse_options():
parser = OptionParser()
parser.set_description("sss_obfuscate converts a given password into \
human-unreadable format and places it into \
appropriate domain section of the SSSD config \
file. The password can be passed in by stdin, \
specified on the command-line or entered \
interactively")
parser.add_option("-s", "--stdin", action="store_true",
dest="stdin", default=False,
help="Read the password from stdin.")
parser.add_option("-d", "--domain",
dest="domain", default=None,
help="The domain to use the password in (mandatory)",
metavar="DOMNAME")
parser.add_option("-f", "--file",
dest="filename", default=None,
help="Set input file to FILE (default: Use system default, usually /etc/sssd/sssd.conf)",
metavar="FILE")
(options, args) = parser.parse_args()
return options, args
def main():
options, args = parse_options()
if not options:
print >> sys.stderr, "Cannot parse options"
return 1
if not options.domain:
print >> sys.stderr, "No domain specified"
return 1
if not options.stdin:
try:
pprompt = lambda: (getpass.getpass("Enter password: "), getpass.getpass("Re-enter password: "))
p1, p2 = pprompt()
#Work around bug in Python 2.6
if '\x03' in p1 or '\x03' in p2:
raise KeyboardInterrupt
while p1 != p2:
print('Passwords do not match. Try again')
p1, p2 = pprompt()
#Work around bug in Python 2.6
if '\x03' in p1 or '\x03' in p2:
raise KeyboardInterrupt
password = p1
except EOFError:
print >> sys.stderr, '\nUnexpected end-of-file. Password change aborted'
return 1
except KeyboardInterrupt:
return 1
else:
try:
password = sys.stdin.read()
except KeyboardInterrupt:
return 1
# Obfuscate the password
obfobj = pysss.password()
obfpwd = obfobj.encrypt(password, obfobj.AES_256)
# Save the obfuscated password into the domain
try:
sssdconfig = SSSDConfig.SSSDConfig()
except IOError:
print "Cannot read internal configuration files."
return 1
try:
sssdconfig.import_config(options.filename)
except IOError:
print "Permissions error reading config file"
return 1
try:
domain = sssdconfig.get_domain(options.domain)
except SSSDConfig.NoDomainError:
print "No such domain %s" % options.domain
return 1
try:
domain.set_option('ldap_default_authtok_type', 'obfuscated_password')
domain.set_option('ldap_default_authtok', obfpwd)
except SSSDConfig.NoOptionError:
print "The domain %s does not seem to support the required options" % \
options.domain
return 1
sssdconfig.save_domain(domain)
try:
sssdconfig.write()
except IOError:
# File could not be written
print >> sys.stderr, "Could not write to config file. Check that " \
"you have the appropriate permissions to edit " \
"this file."
return 1
return 0
if __name__ == "__main__":
ret = main()
sys.exit(ret)
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