freereolen

IMPORTANT NOTE

The script currently doesn’t work, as ereolen.dk has changed their site. The way it now works is by fetching a binary blob and decrypting it client-side. Reverse engineering shouldn’t be too hard, but I haven’t had time for a good look yet.

Purpose

Turn books from ereolen.dk into proper ePub files, to make it possible to read borrowed books with any ePub reader. ePubs created with freereolen have been tested and found working in FBReader on Android and Linux, on a Barnes&Noble nook (gen1) and on a Kobo Libra H2O.

Works by grabbing pages and resources using curl, doing a bit of magic and converting it all into an ePub using zip and ePub XML templates rendered with bash.

Features

automagically creates ToC even for (some) really broken books
i18n layer to translate ToC names into local languages
fetches external resources
lints HTML using tidy

Dependencies

awk
curl
dos2unix
grep
sed
tidy

Usage

See also help text:

./run.sh

borrow a book on ereolen.dk
open it for reading
open the Web Developer view and select the “Network” tab
apply filter so that only JavaScript is shown
browse to a new page
find a request whose URL matches https://streaming.pubhub.dk/publicstreaming/v3/69f63101-9caf-40b9-a31e-b2fdb5642e3d/43c44150-9d2c-4506-8fe6-c0bb904ea563/1/?callback=jQuery11100348712123123213_123123121313&_=1231313123123 (the important thing to look for is the last part of the URL before the query string)
run the program with the URL as argument, e.g. ~./run.sh ‘https://streaming.pubhub.dk/publicstreaming/v3/69f63101-9caf-40b9-a31e-b2fdb5642e3d/43c44150-9d2c-4506-8fe6-c0bb904ea563/1/?callback=jQuery11100348712123123213_123123121313&_=1231313123123’~

Known bugs

doesn’t work with all books, especially graphics-heavy ones (e.g. graphic novels made from images and associated text)
will often choke (on purpose) on links to external sites, which will need to be removed or whitelisted

Help wanted

CSS tidy
support for overdrive.com (as English language books are often only available there)
support for automatically fetching books instead of having to manually go and find the correct URL

runejuhl/freereolen