How to share screenshots without USB connection

[not_lucky_luke]

Hi everyone!

Do you know a workaround in order to easily share the screenshots I can take with my Kobo?

At the moment I need to connect the kobo to my pc using the USB cable but that's not very convenient. I thought of something like "KoboCloud" but that would work in a reverse way: it would share the file FROM the Kobo TO the Cloud.

Does anything like that exist?
Do you know other solutions to get the result I'm looking for?

Thanks in advance

[qkqw]

I don't know of any existing solution to this, but it shouldn't be too hard to create something like this. Let's suppose you're using Nextcloud/Owncloud, then you could create a share in which you allow uploads. Using curl (which is already included in KoboCloud) you can then upload any file to that share. To summarize:

• Create public share allowing uploads
• Use the udev-trick by KoboCloud to run your upload script
• Add some logic to find your screenshots (Mostly look for /mnt/onboard/Screenshot*.png) files
• Upload them using curl (comes down to something like curl -T $file -u "$FOLDERTOKEN":"$PASSWORD" "$CLOUDURL/$PUBSUFFIX/$file"

Hope this helps to get you going.

[Ned]

You're going to have to connect USB to charge the thing, so why not just transfer the screenshots then?

[xyclonei]

You could try running an FTP server (with NickelMenu) on your Kobo device with which you could transfer those screenshots.

[JSWolf]

Originally Posted by Ned

You're going to have to connect USB to charge the thing, so why not just transfer the screenshots then?

Most connect to a USB charger.

[not_lucky_luke]

Originally Posted by qkqw

I don't know of any existing solution to this, but it shouldn't be too hard to create something like this. Let's suppose you're using Nextcloud/Owncloud, then you could create a share in which you allow uploads. Using curl (which is already included in KoboCloud) you can then upload any file to that share. To summarize:

• Create public share allowing uploads
• Use the udev-trick by KoboCloud to run your upload script
• Add some logic to find your screenshots (Mostly look for /mnt/onboard/Screenshot*.png) files
• Upload them using curl (comes down to something like curl -T $file -u "$FOLDERTOKEN":"$PASSWORD" "$CLOUDURL/$PUBSUFFIX/$file"

Hope this helps to get you going.

Thank you for the idea.
Two days ago I wrote a bash script that I launch through NickelMenu. It checks the internet connection, looks for screenshots in the root directory and it uploads (it's supposed to, at least) to dropbox with curl and deletes them after that. I still have a problem I can't fix: curl throws me an error about some missing certificates. I've already tried to run curl with the

--cacert

flag and the certs found here but I'm still stuck with the same error.

Originally Posted by Ned

You're going to have to connect USB to charge the thing, so why not just transfer the screenshots then?

Originally Posted by JSWolf

Most connect to a USB charger.

Why don't I use a USB cable? Because I think it's not convenient looking for a cable and plug it in my pc when I simply want to share something I find interesting as fast as I can with one of the messaging apps I have on my smartphone.
Am I the only one with such a use case?

[Ned]

Each to his own. Nothing implied, I was just trying to help.
By suggesting simply using a USB cable, I was applying Occam's principle of Do it the simple way. For me, but perhaps not for you, putting a lot of effort in to do it a way that I wouldn't find easier anyway, is pointless.
But then my iMac has a USB C and micro USB cable permanently connected so I would say that.
I don't do a lot of sharing, so think we oldies work differently from the way you youngsters do

[not_lucky_luke]

Originally Posted by Ned

Each to his own. Nothing implied, I was just trying to help.
By suggesting simply using a USB cable, I was applying Occam's principle of Do it the simple way. For me, but perhaps not for you, putting a lot of effort in to do it a way that I wouldn't find easier anyway, is pointless.
But then my iMac has a USB C and micro USB cable permanently connected so I would say that.
I don't do a lot of sharing, so think we oldies work differently from the way you youngsters do

I never thought you were implying anything against me

It's not an age-related thing, it's more about the where & when we read

[Uncle Robin]

Originally Posted by not_lucky_luke

Why don't I use a USB cable? Because I think it's not convenient looking for a cable and plug it in my pc when I simply want to share something I find interesting as fast as I can with one of the messaging apps I have on my smartphone.
Am I the only one with such a use case?

Even though I read almost exclusively at home and am never more than 5 metres from my PC when doing so, I share your pain I too would love to be able to share screenshots when I take them. I wonder if the bluetooth functionality in new Kobos might one day make this possible?

[qkqw]

Originally Posted by not_lucky_luke

Thank you for the idea.
Two days ago I wrote a bash script that I launch through NickelMenu. It checks the internet connection, looks for screenshots in the root directory and it uploads (it's supposed to, at least) to dropbox with curl and deletes them after that. I still have a problem I can't fix: curl throws me an error about some missing certificates. I've already tried to run curl with the

--cacert

flag and the certs found here but I'm still stuck with the same error.

If you want to share your script here I can take a look at it!

[not_lucky_luke]

Originally Posted by qkqw

If you want to share your script here I can take a look at it!

Sure! You can find it here: https://github.com/luke-gto/kobo-screenshot-uploader

I've decided to upload the screenshots to telegram because it's the messaging app I use the most.

At the moment the script has very few features (only one actually) but at least it does what I need. Feel free to suggest any improvements

[qkqw]

Originally Posted by not_lucky_luke

At the moment the script has very few features (only one actually) but at least it does what I need. Feel free to suggest any improvements

Your script looks alright. Your problem regarding the missing certificates is indeed that, AFAIK Kobo doesn't offer any certificates. So KoboCloud for example uses its own certificate bundle, see for example: https://github.com/fsantini/KoboClou...fig_kobo.sh#L7

If you have KoboCloud installed, you could just use their cert bundle, or download a bundle from the curl website: https://curl.se/docs/caextract.html - see also https://github.com/fsantini/KoboClou...ateCABundle.sh

[qkqw]

On a second note I've simplified your script and made it work with Nextcloud/Owncloud. It makes use of KoboCloud's curl and certificate bundle. I am not quite sure how to check for a connection, but wanted to use NickelMenu like this:

menu_item :main    :Sync Screenshots    :nickel_wifi     :autoconnect
  chain_success                         :cmd_spawn       :quiet:/mnt/onboard/.adds/sync/sync.sh
  chain_success                         :dbg_toast       :Syncing Screenshots

#!/bin/sh

SCREENSHOTS="/mnt/onboard"
KC_HOME="/usr/local/kobocloud"
CURL="$KC_HOME/curl --cacert $KC_HOME/ca-bundle.crt --fail --silent"
HEADER="X-Requested-With: XMLHttpRequest"
URL="[Your Nextcloud/Owncloud instance]/public.php/webdav"
USER="[Your Share]:"

for i in $(find $SCREENSHOTS -maxdepth 1 -type f -name "screen_*.png"); do
  DATE=$(date -r "$i" "+%Y-%m-%d-%H-%M-%S")
  $CURL -u "$USER" -H "$HEADER" -T "$i" "$URL/kobo-$DATE.png"
  if [ $? -eq 0 ]; then
    rm $i
  fi
done

Feedback welcome!

[not_lucky_luke]

Originally Posted by qkqw

On a second note I've simplified your script and made it work with Nextcloud/Owncloud. It makes use of KoboCloud's curl and certificate bundle.

I'd rather not add kobocloud as a dependency here but I'll see how can I implement the cert-related "feature".

Btw, feel free to fork the repo and work on that Ah, why don't you open a pull request, I'd like to implement your version of the config file! Let me know how I can attribute the work to you.

Originally Posted by qkqw

I am not quite sure how to check for a connection, but wanted to use NickelMenu

Next thing I'm gonna do is implementing NickelMenu signals and slot. I want to have an option that lets the kobo to automatically connect to the wifi when the button for sharing the screenshot is pressed and then turn the wifi off.