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#!/usr/bin/env python
'''Change passwords on the named machines.
passmass host1 host2 host3 . . .
Note that login shell prompt on remote machine must end in # or $.
'''
import pexpect
import sys, getpass
USAGE = '''passmass host1 host2 host3 . . .'''
SHELL_PROMPT = '[#\$] '
def login(host, user, password):
child = pexpect.spawn('ssh %s@%s'%(user, host))
child.expect('password:')
child.sendline(password)
i = child.expect(['Permission denied', SHELL_PROMPT, 'Terminal type'])
if i == 0:
print 'Permission denied on host:', host
return None
elif i == 2:
child.sendline('vt100')
i = child.expect('[#\$] ')
return child
def change_password(child, user, oldpassword, newpassword):
child.sendline('passwd %s'%user)
i = child.expect(['Old password', 'New password'])
# Root does not require old password, so it gets to bypass the next step.
if i == 0:
child.sendline(oldpassword)
child.expect('New password')
child.sendline(newpassword)
i = child.expect(['New password', 'Retype new password'])
if i == 0:
print 'Host did not like new password. Here is what it said...'
print child.before
child.sendline('') # This should tell remote passwd command to quit.
return
child.sendline(newpassword)
def main():
if len(sys.argv) <= 1:
print USAGE
return 1
user = raw_input('Username: ')
password = getpass.getpass('Current Password: ')
newpassword = getpass.getpass('New Password: ')
newpasswordconfirm = getpass.getpass('Confirm New Password: ')
if newpassword != newpasswordconfirm:
print 'New Passwords do not match.'
return 1
for host in sys.argv[1:]:
child = login(host, user, password)
if child == None:
print 'Could not login to host:', host
continue
print 'Changing password on host:', host
change_password(e, user, password, newpassword)
child.expect(SHELL_PROMPT)
child.sendline('exit')
if __name__ == '__main__':
try:
main()
except ExceptionPypect, e:
print str(e)
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