path: root/xsh

#!/bin/bash

SCRIPT=$(basename $0)

function usage () {
    echo "Usage: $SCRIPT [--x] [--verbose] [[--su |{user}@]{host}]"
}

function termwrapper () {
    PRG=$@
    title="$title $titleopt"
    [ $V ] && echo $PRG
    
    # mc seem to have a bug separating upper- and lowercase with danish locale
#   case $LANG in
#       da_*)   LANG=da;;
#   esac

    if [ "x$PRG" != "x" ]; then
#   if [ -z $PRG ]; then
#       rxvt +sb -sl 500 -n "$title" -title "$title" -e $PRG &
        exec rxvt +sb -sl 500 -n "$title" -title "$title" -e $PRG
    else
#       rxvt +sb -sl 500 -n "$title" -title "$title" &
        exec rxvt +sb -sl 500 -n "$title" -title "$title"
    fi
}

# Initial setup
SU=''
X=''
V=''
SUHACK=''
HOST=''
USER=''
ssh_opts="-t"

args=''
while [ $# -gt 0 ]; do
    case $1 in
        -su|su)     SU=1;;
        -suu|suu)   SU=1; SUU=1;; # Become root indirectly through a regular user (same as local user if -u not used)
        --user|-u)  USER=$2; shift;; # Remote user allowed to switch to root
        --x|-x|x)   X=1; ssh_opts="$ssh_opts -X";;
        --ssh2|-2)  ssh_opts="$ssh_opts -2";;
        --verbose|-v)   V=1; ssh_opts="$ssh_opts -v";;
        --port|-p)  ssh_opts="$ssh_opts -p $2"; shift;;
        --host|-h)  HOST=$1;;
        -)      HOST="localhost";;
        -*)     usage; exit 1;;
        root@*)     HOST="$1"; SU=1; SUHACK=1;;
        *)      args="$args$1 ";;
    esac
    shift
done
set -- $args

if [ -z $HOST ]; then
    HOST=$1
    shift
fi
if [ -z $HOST ]; then
    usage
    exit 1
fi

prg_base=$1
shift
prg_opts=$@

if [ "$X" -a "$SU" -a ! "$SUHACK" ]; then
    args="root@$args"
    SUHACK=1
fi

titleopt="[$HOST]"
if [ $HOST != "localhost" ]; then
    ssh_opts="-C $ssh_opts"
fi

[ $V ] && prg_opts="$prg_opts; sleep 4"

## Don't open 2 shells if no program is run - Disabled for now (something wrong with the test...)
#if [ -z $prg_base -a -z $prg_opts -a -z $SUU ]; then
#   title="$SCRIPT"
#       prg_local=''
#       prg_remote=''
#else
    if [ -z $prg_base ]; then
        title="$SCRIPT"
        prg_base='/bin/bash'
    else
        title="$prg_base"
        prg_opts_local="$prg_opts"
        prg_opts_remote="$prg_opts"
    fi
    
    # Special cases for specific programs
    case $prg_base in
        mc) prg_opts_remote="-s -c $prg_opts_remote" # Midnight Commander has an option for slow connections
            ;;
    esac
    
    prg_local="$prg_base $prg_opts_local"
    if [ $SUU ]; then
        prg_remote="echo -n 'Changing to root...: '; su $su_opts -c \"cd; $prg_base $prg_opts_remote\""
    else
#       prg_remote="bash -i -c \"$prg_base $prg_opts_remote\""
#       prg_remote="bash -i -c \"test -e /etc/debian_version || export TERM=xterm; $prg_base $prg_opts_remote\""
        prg_remote="bash --login -i -c \"test -e /etc/debian_version || export TERM=xterm; $prg_base $prg_opts_remote\""
#       prg_remote="bash -i -c \"test -e /etc/debian_version || export TERM=xterm; $prg_base $prg_opts_remote\""
    fi
#fi

if [ ! $SU ]; then
    if [ $HOST = "localhost" ]; then
        termwrapper $prg_local
    else
        termwrapper ssh $ssh_opts $HOST $prg_remote
    fi
else
    if [ "$SUHACK" ]; then
#       termwrapper ssh $ssh_opts $HOST su $su_opts -c \"$prg_remote\"
        termwrapper ssh $ssh_opts $HOST $prg_remote
    else
        titleopt="[$HOST root]"
        if [ $SUU ]; then
            if [ "x$USER" = "x" ]; then
                termwrapper ssh $ssh_opts $HOST $prg_remote
            else
                termwrapper ssh $ssh_opts $USER@$HOST $prg_remote
            fi
        else
            termwrapper ssh $ssh_opts root@$HOST $prg_remote
        fi
    fi
fi