Download TU Delft Collegerama video streams, Silverlight player sucks.

collegedownloader.sh

#!/bin/bash

slides=1;
video=1;

for var in "$@"
do

	if [ "${var}" = "--slidesOnly" ]; then
		video=0;
		slides=1;
		continue;
	fi

	if [ "${var}" = "--videoOnly" ]; then
		video=1;
		slides=0;
		continue;
	fi

done

if [ -z $1 ]; then
	echo "
./collegedownloader <id> [filename]

id:       College peid url query variable (?peid=<id>)
filename: Filename to save to
"
	exit;
fi

id=$1

file="${id:0:8}-${id:8:4}-${id:12:4}-${id:16:4}-${id:20:12}"

manifest="http://collegerama.tudelft.nl/Mediasite/FileServer/Presentation/${id}/manifest.xml";
manifest_xml=`wget ${manifest} --quiet -O -`;

# video
if [ $video -eq 1 ]; then

	mp4=`echo "${manifest_xml}" | xpath -q -e '//VideoContent/Location/text()'`
	wget "${mp4}" -O $2

fi

# slides
if [ $slides -eq 1 ]; then

	slides=`echo "${manifest_xml}" | xpath -q -e '//Slide/Time/text()'`
	dataUrl=`echo "${manifest_xml}" | xpath -q -e '//SlideDataUrl/text()'`

	i=1;

	url="http://collegerama.tudelft.nl${dataUrl}/Presentation/${file}/slide_"

	for slide in $slides
	do

		c=`printf "%04d" "${i}"`;
		slide_url="${url}${c}_1024_768.jpg";
		file="slide_${c}_${slide}.jpg";
		echo "${file}";
		wget "${slide_url}" -q -O "${file}";

		i=$((i+1));

	done

fi

My Debian install (on a VirtualMachine) does not recognize xpath. I haven't been able to find a package to install it, any thoughts?

@IJoshFTW, in Ubuntu the package that supplies the xpath executable is called libxml-xpath-perl . It might be the same in Debian.

This way of downloading content from collegerama does not seem to work anymore, as the manifest file is not at the expected location anymore. Does anyone know how to work around this problem?

They replaced the manifest file with an extremely overengineered JSON API, but the process of looking up and downloading videos is still basically the same. Here's the script I'm using: https://gist.github.com/mnstrspeed/327e1a43ac09e67829b0. It depends on jq instead of xpath, so make sure that's installed (sudo apt-get install jq in Ubuntu/Debian).