#!/bin/bash
#
# Get the FLV url of a recorded video on ustream.tv
# and display it in a media player.
#
# Usage: ./ustream.sh 
#
# videoUrl must be in the form: http://www.ustream.tv/recorded/...
# videoId is the first group of digits in the url.
#
# Examples
#
# ./ustream.sh 12345
# ./ustream.sh http://www.ustream.tv/recorded/12345
# ./ustream.sh http://www.ustream.tv/recorded/12345/highlight/9876
#
# Author: array at email.it
# If you cite me you can use this code as you wish.
# If you don't, you're a very naughty boy.
#

player="vlc"

# ---

reqtmp="`mktemp`"
resptmp="`mktemp`"

video="${1##*recorded/}"
video="${video%%/*}"

len=`printf '%02x' ${#video}`

printf "\x00\x00\x00\x00\x00\x01\x00"            >  "$reqtmp"
printf "\x0fViewer.getVideo\x00\x02/1\x00\x00"   >> "$reqtmp"
printf "\x00\x98\x0a\x00\x00\x00\x01\x03\x00"    >> "$reqtmp"
printf "\x07brandId\x02\x00\x011\x00"            >> "$reqtmp"
printf "\x07videoId\x02\x00\x${len}${video}\x00" >> "$reqtmp"
printf "\x08autoplay\x01\x01\x00"                >> "$reqtmp"
printf "\x00\x09"                                >> "$reqtmp"

wget \
 --header='Content-Type: application/x-amf' \
 --post-file="$reqtmp" \
 -O "$resptmp" \
 'http://216.52.240.138/gateway.php'

url="$(cat "$resptmp" | \
 tr -d '\0' | \
 sed 's/http/\n&/g;s/\.flv/&\n/g' | \
 grep ^http.*\.flv$)"

rm "$reqtmp"
rm "$resptmp"

if [ -z "$url" ]; then
 echo "Url not found."
 exit 1
fi

$player "$url" &

exit 0

#include 

/*
 * Print a file escaping unprintable characters (0-31, 127-?)
 * according to the PRINTF(1) hexadecimal format \xHH
 *
 * array at email.it - Public domain
 */

int main(int argc, char* argv[])
{
   FILE* in;
   unsigned int c;

   if (!(in = (argc == 1) ? stdin : fopen(argv[1], "r")))
   {
      printf("Error opening file\n", stderr);
      return 1;
   }

   while ((c = fgetc(in)) != EOF)
   {
      if((32 <= c) && (c <= 126))
         printf("%c", c);
      else
         printf("\\x%02x", c);
   }

   fclose(in);
   return 0;
}