#!/bin/sh
# Program name ytr = YouTube.com Ripper

BASEURL="http://youtube.com/get_video.php?"

if [ "$1" = "--play" ] ; then
    player=`which mplayer`
    if [ -z "$player" ] ; then
        echo "Error: mplayer not found, can't play"
        exit 1
    fi
    play="on"
    shift
fi

urltorip=$1
videofile=$2

if [ -z "$urltorip" ] ; then
    echo "Usage: ´basename $0´ <yourtube url> [<output file>]"
    exit 1
fi

content=`wget -qO- $urltorip`
videourl=`echo $content | sed -n  "s/.*\(video_id.\+\)&title.*/\1/p"`

if [ -z "$videofile" ] ; then
    videofile=`echo $content | sed -n 's/.*<title>\([^<]\+\)<\/title>.*/\1/p'`.flv
fi

if [ -f "$videofile" ] ; then
    if [ "$play" = "on" ] ; then
         $player "$videofile"
         exit $?
    fi
    echo "Error: Output file '$videofile' already exists"
    exit 1
fi

wget $BASEURL$videourl -O "$videofile" || exit 1

if [ -f "$videofile" ] ; then
    echo "Downloaded file name: $videofile"
else
    echo "Error: file '$videofile' hasn't been downloaded"
    exit 1
fi

[ "$play" = "on" ] && $player "$videofile"