#! /usr/bin/env perl

# backs up configuration for routers
# you MUST have ssh access to the routers in question
# without a password required. Easiest is to use
# ssh certs with on password
# also, simplest is to define router in ~/.ssh/config
# with port, IP, user, etc..

use strict;
use warnings;

my $router=shift;
my $distro=shift;

my $BASEDIR='/home/routers';

sub checkDistro {
   $distro = shift;
   unless ( $distro ) {
      `ssh $router 'ls /conf' > /dev/null`;
#      print $? . "\n"; die;
      if ( $? == 0 ) {
         print "Detected opnsense router\n";
         $distro='opnsense';
      } else {
         `ssh $router 'ls /var/ipfire' > /dev/null`;
         if ( $? == 0 ) {
            print "Detected ipFire router\n";
            $distro='ipfire';
         }
     }
   }
   return $distro;
}

if ( $router ) {
   print "Backing up $router\n";
   `mkdir -p $BASEDIR/$router`;
   $distro = &checkDistro( $distro );
   if ( $distro eq 'ipfire' ) {
         `rsync -a --delete $router:/var/ipfire $BASEDIR/$router`;
         `rsync -a --delete $router:/root $BASEDIR/$router`;
         `rsync -a --delete $router:/etc $BASEDIR/$router`;
         `rsync -a --delete $router:/opt $BASEDIR/$router`;
   } elsif ( $distro eq 'opnsense' ) {
         `rsync -a --delete $router:/conf $BASEDIR/$router`;
   } else {
      print "Invalid router type $distro\n";
   }
} else {
   print "Syntax $0 IP_OF_ROUTER\n";
}