~azzar1/unity/add-show-desktop-key

Committer: drtomc
Date: 2008-02-04 23:06:26 UTC
Revision ID: svn-v3-trunk0:2b9c9e99-6f39-0410-b283-7f802c844ae2:trunk:404

Version 0 of the usrmgt server.
1. doesn't make the jail yet.
2. doesn't sync the passwd files properly (I'm sure Wilson muttered the words "shadow password file" at some point in our conversation).

files added:
usrmgt

usrmgt/usrmgt-server

Show diffs side-by-side

added added

removed removed

usrmgt/usrmgt-server

#!/usr/bin/python

# usage:

# usrmgt-server <port> <magic>

import cjson

import cStringIO

import md5

import os

import Queue

import signal

import socket

import sys

def daemonize():

if os.fork(): # launch child and...

os._exit(0) # kill off parent

os.setsid()

if os.fork(): # launch child and...

os._exit(0) # kill off parent again.

os.umask(077)

# The global 'magic' is the secret that the client and server share

# which is used to create and md5 digest to authenticate requests.

# It is assigned a real value at startup.

magic = ''

if __name__ == "__main__":

port = int(sys.argv[1])

magic = sys.argv[2]

# Attempt to open the socket.

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

s.bind(('', port))

s.listen(1)

# Excellent! It worked. Let's turn ourself into a daemon,

# then get on with the job of being a python interpreter.

daemonize()

while True:

(conn, addr) = s.accept()

try:

# Grab the input

buf = cStringIO.StringIO()

blk = conn.recv(1024)

while blk:

buf.write(blk)

try:

blk = conn.recv(1024, socket.MSG_DONTWAIT)

except:

# Exception thrown if it WOULD block (but we

# told it not to wait) - ie. we are done

blk = None

inp = buf.getvalue()

msg = cjson.decode(inp)

# Check that the message is

digest = md5.new(msg['login'] + magic).digest().encode('hex')

if msg['digest'] != digest:

conn.close()

continue

os.system("useradd '%s'" % msg['login'])

for node in [4,5]:

os.system("scp /etc/passwd informatics%s:/etc/passwd" % str(n))

conn.sendall(cjson.encode(True))

conn.close()

except Exception, e:

conn.close()

Older »