| 1 | #!/usr/bin/env python
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| 2 | '''Change passwords on the named machines.
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| 3 | passmass host1 host2 host3 . . .
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| 4 | Note that login shell prompt on remote machine must end in # or $.
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| 5 | '''
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| 6 |
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| 7 | import pexpect
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| 8 | import sys, getpass
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| 9 |
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| 10 | USAGE = '''passmass host1 host2 host3 . . .'''
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| 11 | SHELL_PROMPT = '[#\$] '
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| 12 |
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| 13 | def login(host, user, password):
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| 14 | child = pexpect.spawn('ssh %s@%s'%(user, host))
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| 15 | child.expect('password:')
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| 16 | child.sendline(password)
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| 17 | i = child.expect(['Permission denied', SHELL_PROMPT, 'Terminal type'])
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| 18 | if i == 0:
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| 19 | print 'Permission denied on host:', host
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| 20 | return None
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| 21 | elif i == 2:
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| 22 | child.sendline('vt100')
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| 23 | i = child.expect('[#\$] ')
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| 24 | return child
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| 25 |
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| 26 | def change_password(child, user, oldpassword, newpassword):
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| 27 | child.sendline('passwd %s'%user)
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| 28 | i = child.expect(['Old [Pp]assword', 'New [Pp]assword'])
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| 29 | # Root does not require old password, so it gets to bypass the next step.
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| 30 | if i == 0:
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| 31 | child.sendline(oldpassword)
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| 32 | child.expect('New [Pp]assword')
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| 33 | child.sendline(newpassword)
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| 34 | i = child.expect(['New [Pp]assword', 'Retype', 'Re-enter'])
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| 35 | if i == 0:
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| 36 | print 'Host did not like new password. Here is what it said...'
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| 37 | print child.before
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| 38 | child.send (chr(3)) # Ctrl-C
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| 39 | child.sendline('') # This should tell remote passwd command to quit.
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| 40 | return
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| 41 | child.sendline(newpassword)
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| 42 |
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| 43 | def main():
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| 44 | if len(sys.argv) <= 1:
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| 45 | print USAGE
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| 46 | return 1
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| 47 |
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| 48 | user = raw_input('Username: ')
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| 49 | password = getpass.getpass('Current Password: ')
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| 50 | newpassword = getpass.getpass('New Password: ')
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| 51 | newpasswordconfirm = getpass.getpass('Confirm New Password: ')
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| 52 | if newpassword != newpasswordconfirm:
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| 53 | print 'New Passwords do not match.'
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| 54 | return 1
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| 55 |
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| 56 | for host in sys.argv[1:]:
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| 57 | child = login(host, user, password)
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| 58 | if child == None:
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| 59 | print 'Could not login to host:', host
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| 60 | continue
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| 61 | print 'Changing password on host:', host
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| 62 | change_password(child, user, password, newpassword)
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| 63 | child.expect(SHELL_PROMPT)
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| 64 | child.sendline('exit')
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| 65 |
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| 66 | if __name__ == '__main__':
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| 67 | try:
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| 68 | main()
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| 69 | except pexpect.ExceptionPexpect, e:
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| 70 | print str(e)
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| 71 |
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| 72 |
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