dslideshare

#!/bin/bash

if [ -z "$1" ]; then
  echo "";echo "[i] Usage: `basename $0` http://www.slideshare.net/link_with_presentation";echo "";exit
fi

presentation=`curl -s --user-agent 'Mozilla/5.0' "$1" | tr '"' "\n" | egrep -m 1 -e "static\.slidesharecdn\.com\/swf\/ssplayer2\.swf\?doc=(.*?)\{rel}{startSlide}" | cut -d '{' -f 1 | cut -d '=' -f 2`
pages=`curl -s --user-agent 'Mozilla/5.0' "$1" | grep -m 1 "slideshare_object" | sed 's/.*total_slides":\([^,]*\).*/\1/'`
version=`curl -s --user-agent 'Mozilla/5.0' "$1" | grep -m 1 "slideshare_object" | sed 's/.*version_no":"\([^""]*\).*/\1/'`
workdir=~/tmp/${RANDOM}${RANDOM}
outfile=$WORKDIR.pdf

# check if swfrender (swftools) exists.
hash swfrender 2>&- || { echo >&2 "I require swfrender (package swftools) but it's not installed.  Aborting."; exit 1; }
# check if convert (imagick) exists.
hash convert 2>&- || { echo >&2 "I require convert (package imagick) but it's not installed.  Aborting."; exit 1; }

if [ ! -d ${workdir} ]; then
    mkdir -p ${workdir}
fi

if [ -f ${outfile} ]; then
    mv ${outfile} ${outfile}.${RANDOM}
fi

for ((i = 1; i <= $pages; i++));
do
   link="http://cdn.slidesharecdn.com/$presentation-slide-$i.swf?ver=$version"
   slide=`printf "${workdir}/slide-%03d.swf" $i`
   echo "$link"
   # echo $slide
   curl -s --user-agent 'Mozilla/5.0' $link --O $slide
   swfrender $slide -o "$slide.png"
done

echo "Combining the slides together..."
convert ${workdir}/*.png ${outfile}