#!/usr/bin/python
# -*- coding: UTF-8 -*-

#        +-----------------------------------------------------------------------------+
#        | GPL                                                                         |
#        +-----------------------------------------------------------------------------+
#        | Copyright (c) Brian Lewis Cairns <brian.cairns@fast-email.com>              |
#        |                                                                             |
#        | 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; either version 2              |
#        | of the License, or (at your option) any later version.                      |
#        |                                                                             |
#        | 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 binascii
import commands
import os
import sys
import time
import sys

# The "worker" part of the code. This code is called as a separate process by
# the main code when changes need to be made, as those changes can only be made
# by root. Essentially, SimplePPPApplet uses sudo to execute itself (specifically this
# code) in a separate instance of the Python interpreter running as root.

while True:
    connectdata = []
    stdin = sys.stdin.readline()
    if stdin <> "":
        stdin = stdin[:-1]
        try:
            connectdata = binascii.a2b_hex(stdin).replace("\\","\\\\").replace('"','\\"').replace("$","\$").replace("`","\`").split("\n")
        except TypeError:
            print "This script (simpleppp-settings-client) is used by simplepppapplett to manage a ppp connection. It is not intended for direct use."
            sys.exit()
        else:
            if connectdata[0] == "ifup":
                r = commands.getoutput('ifup "' + connectdata[1] + '"')
                # The pppd process can die, leaving the interface configured,
                # but the connection down; if this happens, just bring the
                # interface down before attempting to bring it up.
                if r.find("already configured") > -1:
                    commands.getoutput('ifdown "' + connectdata[1] + '"')
                    commands.getoutput('ifup "' + connectdata[1] + '"')
            if connectdata[0] == "ifdown":
                commands.getoutput('ifdown "' + connectdata[1] + '"')
            if connectdata[0] == "kill":
                commands.getoutput("killall gtkwifi-settings-client")
                time.sleep(0.5)
                sys.exit()
        stdin = ""
    time.sleep(0.5)