Simple DBUS service that calls your command lines and returns their output

dbus-shell-service.pl

#!/usr/bin/perl -w

# Vitaly "_Vi" Shukela  2012  License=MIT

use strict;


package DbusShellService;
use Net::DBus::Exporter qw(org.vi_server.DbusShellService);
use base qw(Net::DBus::Object);
use POSIX qw(dup2);

sub new {
    my $class = shift;
    my $service = shift;
    my $name = shift;
    my $self = $class->SUPER::new($service, $name);
    bless $self, $class;
    return $self;
}

dbus_method("Call", [["array", "string"]], ["string"]);
dbus_method("Call0", [], ["string"]);
dbus_method("Call1", ["string"], ["string"]);
dbus_method("Call2", ["string", "string"], ["string"]);
dbus_method("Call3", ["string", "string", "string"], ["string"]);
dbus_method("Call4", ["string", "string", "string", "string"], ["string"]);
dbus_method("Call5", ["string", "string", "string", "string", "string"], ["string"]);

sub Call0 { my $self = shift; $self->Call(\@_); }
sub Call1 { my $self = shift; $self->Call(\@_); }
sub Call2 { my $self = shift; $self->Call(\@_); }
sub Call3 { my $self = shift; $self->Call(\@_); }
sub Call4 { my $self = shift; $self->Call(\@_); }
sub Call5 { my $self = shift; $self->Call(\@_); }

sub Call {
    my $self = shift;
    my $aref = shift;
    my @a = (@ARGV, @$aref);

    pipe READ, WRITE;
    if(!fork) {
        close READ;
        dup2(fileno(WRITE),1);
        close WRITE;
        exec @a;
    }
    close WRITE;
    local $/;
    my $str = <READ>;
    close READ;
    return $str;
}


package main;
use Net::DBus;
use Net::DBus::Reactor;

if ($#ARGV < 0) {
    print STDERR "Usage: dbus-shell-service.pl service_name command_line_arguments...
Example:
  dbus-shell-service.pl org.example.Test /usr/bin/printf '%s Q %s\\n' &
  qdbus org.example.Test / org.vi_server.DbusShellService.Call2 s1 s2
  s1 Q s2\n\n";
    exit 1;
}
my $name=shift @ARGV;



my $bus = Net::DBus->session;
my $service = $bus->export_service($name);
my $object = DbusShellService->new($service, "/");
my $reactor = Net::DBus::Reactor->main();

$reactor->run();