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#!/usr/bin/perl

# drakroam: wireless network roaming GUI
# Austin Acton, 2004 <austin@mandriva.org>
# Olivier Blin, 2005 <oblin@mandriva.com>
# Licensed under the GPL

use strict;
use lib qw(/usr/lib/libDrakX);

use standalone;
use common;
use run_program;
use detect_devices;
use interactive;
use mygtk2;
use ugtk2 qw(:create :helpers :wrappers);
use Gtk2::SimpleList;
use network::ethernet;
use network::monitor;
use network::network;
use network::tools;
use network::wireless;

my $in = 'interactive'->vnew('su');

my $arg_ap;
/^--ap=(.*)/ and $arg_ap = $1 foreach @ARGV;

my $wireless_device = detect_devices::get_wireless_interface();

unless ($wireless_device) {
    ugtk2::err_dialog(N("Error"), N("You do not have any wireless interface.
Run the \"%s\" assistant from the Mandriva Linux Control Center", N("Set up a new network interface (LAN, ISDN, ADSL, ...)")));
    ugtk2::exit(0) if !$::testing;
}

my $modules_conf = modules::any_conf->read;
my $dev = find { $_->[0] eq $wireless_device } network::ethernet::get_eth_cards($modules_conf);
my $wireless_module = $dev->[1];

my $net = {};
network::network::read_net_conf($net);

my $wireless_list = Gtk2::SimpleList->new(
    "AP" => "hidden",
    '' => "pixbuf",
    N("SSID") => "text",
    N("Signal strength") => "pixbuf",
    '' => "pixbuf",
    N("Encryption") => "text",
    N("Operating Mode") => "text",
);
$wireless_list->get_selection->set_mode('single');

my $dbus = dbus_object::system_bus();
my $monitor = network::monitor->new($dbus);
my $wireless_networks = {};
my $has_roaming;

my %pixbufs =
  (
      state => { map { $_ => gtkcreate_pixbuf($_) } qw(connected disconnected) },
      link_level => { map {
          $_ => gtkcreate_pixbuf('wifi-' . sprintf('%03d', $_) . '.png')->scale_simple(24, 24, 'hyper');
      } qw(20 40 60 80 100) },
      keyring => gtkcreate_pixbuf("/usr/share/pixmaps/keyring-small.png")->scale_simple(24, 24, 'hyper'), #- provided by usermode, required by drakxtools
  );

sub update_networks() {
    ($wireless_networks, $has_roaming) = network::monitor::list_wireless($monitor, $wireless_device);
    @{$wireless_list->{data}} = ();

    while (my ($ap, $network) = each(%$wireless_networks)) {
        push @{$wireless_list->{data}}, [
            $ap,
            $network->{current} ? $pixbufs{state}{connected} : undef,
            $network->{essid} || $net->{wireless}{$ap}{WIRELESS_ESSID} || $ap,
            $pixbufs{link_level}{$network->{approx_level}},
            $network->{flags} ? $pixbufs{keyring} : undef,
            $network->{flags},
            $network->{mode},
        ];
    }
    1;
}

sub configure_ap {
    my ($ap) = @_;
    my $network = $wireless_networks->{$ap};
    my $essid = $network->{essid};
    my $wireless_net =
      $essid && exists $net->{wireless}{$essid} ?
        $net->{wireless}{$essid} :
      exists $net->{wireless}{$ap} ?
        $net->{wireless}{$ap} :
        {};
    $wireless_net->{WIRELESS_ESSID} = $essid if $essid;

    my ($wireless_enc_mode, $wireless_enc_key, $wireless_restricted);
    ($wireless_enc_key, $wireless_restricted) = network::wireless::get_wep_key_from_iwconfig($wireless_net->{WIRELESS_ENC_KEY});
    #- FIXME: handle restricted
    $wireless_enc_mode = $network->{flags} =~ /wpa/i ? 'wpa-psk' : $network->{flags} =~ /wep/i ? 'open' : 'none';

    my $dhcp = to_bool(!exists($wireless_net->{BOOTPROTO}) || $wireless_net->{BOOTPROTO} eq "dhcp");

    $in->ask_from_({
        title => "Wireless settings",
        messages => N("Please enter settings for wireless network \"%s\"", $essid || $ap)
    },
                   [
                       { label => N("Network name (ESSID)"), val => \$wireless_net->{WIRELESS_ESSID}, disabled => sub { $essid } },
                       { label => N("Encryption mode"), val => \$wireless_enc_mode,
                         list => [ keys %network::wireless::wireless_enc_modes ],
                         sort => 1,
                         format => sub { translate($network::wireless::wireless_enc_modes{$_[0]}) } },
                       { label => N("Encryption key"), val => \$wireless_enc_key, disabled => sub { $wireless_enc_mode eq 'none' } },
                       { text => N("Automatic IP (BOOTP/DHCP)"), val => \$dhcp, type => 'bool' },
                       { label => N("IP address"), val => \$wireless_net->{IPADDR}, disabled => sub { $dhcp } },
                       { label => N("DNS server"), val => \$wireless_net->{MS_DNS1}, disabled => sub { $dhcp } },
                       { label => N("Gateway IP address"), val => \$wireless_net->{GATEWAY}, disabled => sub { $dhcp } },
                   ],
               ) or return;

    $wireless_net->{BOOTPROTO} = $dhcp ? 'dhcp' : 'static';
    $wireless_net->{WIRELESS_ENC_KEY} = $wireless_enc_key && network::wireless::convert_wep_key_for_iwconfig($wireless_enc_key, $wireless_enc_mode eq 'restricted');
    $wireless_net->{WIRELESS_MODE} = $network->{mode} eq 'Ad-Hoc' ? $network->{mode} : 'Managed';

    if ($has_roaming || $wireless_enc_mode eq 'wpa-psk') {
        $wireless_net->{WIRELESS_WPA_DRIVER} = network::wireless::wpa_supplicant_get_driver($wireless_module);
        network::wireless::wpa_supplicant_add_network($wireless_net->{WIRELESS_ESSID}, $wireless_enc_mode, $wireless_enc_key);
    } else {
        delete $wireless_net->{WIRELESS_WPA_DRIVER};
    }

    my $ssid = $essid || $ap;
    $net->{wireless}{$ssid} = $wireless_net;

    network::network::write_wireless_conf($ssid, $wireless_net);

    if ($has_roaming) {
        #- this should be handled by the monitoring daemon instead
        run_program::run('/usr/sbin/wpa_cli', 'reconfigure');
    } else {
        overwrite_wireless_ifcfg($wireless_net);
    }

    1;
}

sub overwrite_wireless_ifcfg {
    my ($wireless_net) = @_;
    my $ifcfg = $net->{ifcfg}{$wireless_device} ||= {};
    delete $ifcfg->{$_} foreach grep { /wireless/i } keys %$ifcfg;
    put_in_hash($ifcfg, $wireless_net);
    network::network::write_interface_conf($net, $wireless_device);
}

sub wait_and_run_sub {
    my ($time, $sub) = @_;
    gtkset_mousecursor_wait();
    Glib::Timeout->add($time, sub {
        $sub->();
        gtkset_mousecursor_normal();
        0;
    });
}

sub connect_to_ap {
    my ($ap, $o_disable_configure) = @_;
    my $network = $wireless_networks->{$ap};
    my $found;

    if ($network) {
        my $wireless_net = !$has_roaming && ($net->{wireless}{$ap} || $net->{wireless}{$network->{essid}});
        if (defined $network->{id}) {
            eval { $monitor->select_network($network->{id}) };
            $found = !$@;
            $found or err_dialog(N("Wireless connection"), N("Unable to contact daemon"));
        } elsif ($wireless_net) {
            network::tools::stop_interface($wireless_device, 0);
            overwrite_wireless_ifcfg($wireless_net);
            network::tools::start_interface($wireless_device, 1);
            $found = 1;
        }
    }

    $found || !$o_disable_configure or return;

    if (!$found) {
        if ($has_roaming) {
            configure_ap($ap);
            #- wait for wpa_supplicant to reconfigure the device
            wait_and_run_sub(2000, sub { connect_to_ap($ap, 1) });
            return;
        } else {
            network::tools::stop_interface($wireless_device, 0);
            configure_ap($ap);
            network::tools::start_interface($wireless_device, 0);
        }
    }
    wait_and_run_sub(5000, \&update_networks);
}

sub configure_selected() {
    my ($selected) = $wireless_list->get_selected_indices or return;
    configure_ap($wireless_list->{data}[$selected][0]);
}

sub connect_to_selected() {
    my ($selected) = $wireless_list->get_selected_indices or return;
    connect_to_ap($wireless_list->{data}[$selected][0]);
}

update_networks();

my $w = ugtk2->new(N("Wireless connection"));
gtkadd($w->{window},
       gtknew('VBox', spacing => 5, children => [
           $::isEmbedded ? () : (0, Gtk2::Banner->new('/usr/share/mcc/themes/default/drakroam-mdk.png', N("Wireless connection"))),
           1, gtknew('HBox', spacing => 5, children => [
               1, gtknew('ScrolledWindow', width => 500, height => 300, child => $wireless_list),
               0, gtknew('VButtonBox', layout => 'edge', children_loose => [
                   gtknew('Button', text => N("Configure"), clicked => \&configure_selected),
                   gtknew('Button', text => N("Connect"), clicked => \&connect_to_selected),
                   gtknew('Button', text => N("Refresh"), clicked => \&update_networks),
                   gtknew('Button', text => N("Quit"), clicked => sub { Gtk2->main_quit })
               ]),
           ]),
       ]),
   );

$arg_ap and Glib::Timeout->add(100, sub { connect_to_ap($arg_ap); 0 });

$w->main;