laurensk/digi4school-pdf

Download and generate PDF-files of your digi4school books.

digi4school-pdf

Welcome to digi4school-pdf! This script lets you download your books from digi4school.

Requirements

1. Node.JS & NPM (test with node --version and npm --version)
2. Java 8+ (test with java --version)

Installation

1. Clone this repository using HTTPS or Git.
2. Run npm install in the root directory of the project.

Usage

To download a book, open a new terminal window in the root directory of the project and execute the script by typing npm start. Now, you have to provide the URL of the book to download as well as your login credentials for digi4school.

Paste the URL of your book: https://a.digi4school.at/ebook/0000/
Username/Email: [email protected]
Password: ********

You can see the progress of the download in the console and when the PDF-file has been generated, you can use a file explorer to navigate to the subdirectory book/ to find your generated PDF-file.

Disclaimer

This project is for educational purposes only and it's illegal to download and/or use the generated PDF-files.

digi4school-pdf's Issues

Cannot run script

Java, Nodejs & npm are currently on the newest versions

Crashes on start

Any solutions?

Node throws internal error when trying to download book 5111

Node.js v17.3.1

Download of book failed

Hi,
many thanks for this great script.

But for some books we got the following error (other books are ok):

(node:31643) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'forEach' of undefined at Function.<anonymous> (/home/xxxx/digi4school-pdf/dist/D4SAuthHelper.js:63:33) at Generator.next (<anonymous>) at /home/xxxx/digi4school-pdf/dist/D4SAuthHelper.js:8:71 at new Promise (<anonymous>) at __awaiter (/home/xxxx/digi4school-pdf/dist/D4SAuthHelper.js:4:12) at Request._callback (/home/xxxx/digi4school-pdf/dist/D4SAuthHelper.js:59:38) at Request.self.callback (/home/xxxx/digi4school-pdf/node_modules/request/request.js:185:22) at Request.emit (events.js:314:20) at Request.<anonymous> (/home/xxxx/digi4school-pdf/node_modules/request/request.js:1154:10) at Request.emit (events.js:314:20) (node:31643) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag --unhandled-rejections=strict(see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1) (node:31643) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Thank you

Not generating all Pages

Somehow the script dosen't generate all Pages.
It should be 284 Pages -

but the script breaks before finishing with no Traceback. The only information is Source is not an Array

I tried to find the error by myself but i wasn't able to find it.

Can't download Book

Hey Thanks for providing this Script.

If we try to download a book, we get following Error:

(node:11960) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'split' of undefined
    at Function.<anonymous> (c:\Users\thoma\Downloads\digi4school\dist\D4SBookProperties.js:49:53)
    at Generator.next (<anonymous>)
    at c:\Users\thoma\Downloads\digi4school\dist\D4SBookProperties.js:8:71
    at new Promise (<anonymous>)
    at __awaiter (c:\Users\thoma\Downloads\digi4school\dist\D4SBookProperties.js:4:12)
    at Request._callback (c:\Users\thoma\Downloads\digi4school\dist\D4SBookProperties.js:27:26)
    at Request.self.callback (c:\Users\thoma\Downloads\digi4school\node_modules\request\request.js:185:22)
    at Request.emit (events.js:315:20)
    at Request.<anonymous> (c:\Users\thoma\Downloads\digi4school\node_modules\request\request.js:1154:10)
    at Request.emit (events.js:315:20)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:11960) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:11960) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Any Hints?

File does not exist

After downloading all pages, it happened to me that the mergePdfs() function was called to early.

The problem was that the last pdf file hasn't been saved to the system yet (most likely svg-to-pdf uses an async function to save files). I resolved the problem by setting a timeout before calling the mergePdfs() function.

setTimeout(this.mergePdfs, 3000);
This would replace line 281

Unfortunately I am not allowed to push my changes and create a pull request, otherwise I would have done that, instead of creating a new issue.

Hope it helps!
Ciao Lukas

Download does not work with newer editions of books

When I use the Addin on Chrome it works fine for older editions of a book. All the newer books (2021) does not work anymore. The download seems to stuck already at page 0.
Any idea, what the problem could be? If it would help, I can send you a code from a new edition of a book (where it does not work anymore). Pls. let me know.

Crashes while downloading

When using the program as described the following error crashes the program every time:

(node:17808) UnhandledPromiseRejectionWarning: TypeError: Cannot read property '
split' of undefined
at Function. (C:\Users\Christian\Documents\digi4school-pdf\dist\D
4SBookProperties.js:49:53)
at Generator.next ()
at C:\Users\Christian\Documents\digi4school-pdf\dist\D4SBookProperties.js:8:
71
at new Promise ()
at __awaiter (C:\Users\Christian\Documents\digi4school-pdf\dist\D4SBookPrope
rties.js:4:12)
at Request.callback (C:\Users\Christian\Documents\digi4school-pdf\dist\D4SB
ookProperties.js:27:26)
at Request.self.callback (C:\Users\Christian\Documents\digi4school-pdf\node
modules\request\request.js:185:22)
at Request.emit (events.js:314:20)
at Request. (C:\Users\Christian\Documents\digi4school-pdf\node_mo
dules\request\request.js:1154:10)
at Request.emit (events.js:314:20)
(Use node --trace-warnings ... to show where the warning was created)
(node:17808) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This
error originated either by throwing inside of an async function without a catch
block, or by rejecting a promise which was not handled with .catch(). To termin
ate the node process on unhandled promise rejection, use the CLI flag --unhandl ed-rejections=strict (see https://nodejs.org/api/cli.html#cli_unhandled_rejecti
ons_mode). (rejection id: 1)
(node:17808) [DEP0018] DeprecationWarning: Unhandled promise rejections are depr
ecated. In the future, promise rejections that are not handled will terminate th
e Node.js process with a non-zero exit code.

Running this on Windows 10 and all of the Requirements are installed.

Maybe there's a workaround or something.

Best Regards
Christian