wicd/configscript.py

#!/usr/bin/env python

"""Configure the scripts for a particular network

Script for configuring the scripts for a network passed in as a
command line argument.  This needs to run a separate process because
editing scripts requires root access, and the GUI/Tray are typically
run as the current user.

"""

#
#   Copyright (C) 2007 Adam Blackburn
#   Copyright (C) 2007 Dan O'Reilly
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License Version 2 as
#   published by the Free Software Foundation.
#
#   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, see <http://www.gnu.org/licenses/>.
#
import os
import sys
import gtk
import ConfigParser
import dbus
import dbus.service
import pygtk
import gtk.glade

import wpath
import misc

_ = misc.get_gettext()

language = {}
language['configure_scripts'] = "Configure Scripts"
language['before_script'] = "Pre-connection Script"
language['after_script'] = "Post-connection Script"
language['disconnect_script'] = "Disconnection Script"

bus = dbus.SystemBus()

# Connect to the daemon
try:
    print 'Attempting to connect tray to daemon...'
    proxy_obj = bus.get_object('org.wicd.daemon', '/org/wicd/daemon')
    print 'Success.'
except Exception:
    print 'Daemon not running...'
    misc.PromptToStartDaemon()
    sys.exit(1)

wireless = dbus.Interface(proxy_obj, 'org.wicd.daemon.wireless')
wired = dbus.Interface(proxy_obj, 'org.wicd.daemon.wired')
config = dbus.Interface(proxy_obj, 'org.wicd.daemon.config')

wireless_conf = wpath.etc + 'wireless-settings.conf'
wired_conf = wpath.etc + 'wired-settings.conf'


def none_to_blank(text):
    """if text is None, 'None', or '' then return '', otherwise return str(text)"""
    if text == None or text == "None" or text == "":
        return ""
    else:
        return str(text)

def blank_to_none(text):
    """Convert an empty or null string to 'None'"""
    if text == "" or text == None:
        return "None"
    else:
        return str(text)

def get_script_info(network, network_type):
    """Reads script info from disk and load it into the configuration dialog"""
    info = {}
    con = ConfigParser.ConfigParser()
    if network_type == "wired":
        con.read(wired_conf)
        if con.has_section(network):
            info["pre_entry"] = con.get(network, "beforescript")
            info["post_entry"] = con.get(network, "afterscript")
            info["disconnect_entry"] = con.get(network, "disconnectscript")
    else:
        bssid = wireless.GetWirelessProperty(int(network), "bssid")
        con.read(wireless_conf)
        if con.has_section(bssid):
            info["pre_entry"] = con.get(bssid, "beforescript")
            info["post_entry"] = con.get(bssid, "afterscript")
            info["disconnect_entry"] = con.get(bssid, "disconnectscript")
    
    return info

def write_scripts(network, network_type, script_info):
    """Writes script info to disk and loads it into the daemon"""
    con = ConfigParser.ConfigParser()
    if network_type == "wired":
        con.read(wired_conf)
        if con.has_section(network):
            con.set(network, "beforescript", script_info["pre_entry"])
            con.set(network, "afterscript", script_info["post_entry"])
            con.set(network, "disconnectscript", script_info["disconnect_entry"])
            con.write(open(wired_conf, "w"))
            config.ReadWiredNetworkProfile(network)
    else:
        bssid = wireless.GetWirelessProperty(int(network), "bssid")
        con.read(wireless_conf)
        if con.has_section(bssid):
            con.set(bssid, "beforescript", script_info["pre_entry"])
            con.set(bssid, "afterscript", script_info["post_entry"])
            con.set(bssid, "disconnectscript", script_info["disconnect_entry"])
            con.write(open(wireless_conf, "w"))
            config.ReadWirelessNetworkProfile(int(network))
            config.SaveWirelessNetworkProfile(int(network))

def main (argv):
    """Runs the script configuration dialog."""
    if len(argv) < 2:
        print 'Network id to configure is missing, aborting.'
        sys.exit(1)
    
    network = argv[1]
    network_type = argv[2]
    
    script_info = get_script_info(network, network_type)
    
    gladefile = wpath.etc + "wicd.glade"
    wTree = gtk.glade.XML(gladefile)
    dialog = wTree.get_widget("configure_script_dialog")
    wTree.get_widget("pre_label").set_label(language['before_script'] + ":")
    wTree.get_widget("post_label").set_label(language['after_script'] + ":")
    wTree.get_widget("disconnect_label").set_label(language['disconnect_script'] + ":")
    wTree.get_widget("window1").hide()
    
    pre_entry = wTree.get_widget("pre_entry")
    post_entry = wTree.get_widget("post_entry")
    disconnect_entry = wTree.get_widget("disconnect_entry")
    
    pre_entry.set_text(none_to_blank(script_info["pre_entry"]))
    post_entry.set_text(none_to_blank(script_info["post_entry"]))
    disconnect_entry.set_text(none_to_blank(script_info["disconnect_entry"]))
    
    dialog.show_all()
    
    result = dialog.run()
    if result == 1:
        script_info["pre_entry"] = blank_to_none(pre_entry.get_text())
        script_info["post_entry"] = blank_to_none(post_entry.get_text())
        script_info["disconnect_entry"] = blank_to_none(disconnect_entry.get_text())
        write_scripts(network, network_type, script_info)
    dialog.destroy()
               

if __name__ == '__main__':
    main(sys.argv)