base64url | Implement base64url changing , / to - , _ and removing

add .csv to download

The posted code UTF8 decodes the value of decryptedHashValue, corrupting the data and creating the gibberish. Arbitrary binary data such as ciphertexts or hash values must be converted to a string using a binary-to-text encoding, such as Base64 or hex encoding. Since hashMessage() hex encodes the data, hex encoding is the appropriate choice here:

Yesterday I tried to install Ejabberd first through souce code

Just curiosity: what problems did you find, that prefered to use the Ubuntu package?

Did you install from source code? If so, did you later uninstall it? Maybe uninstallation left some files there (there was some bug related to that in make uninstall)... it will help if you can take a look at the installation paths and remove the remaining ejabberd files and directories, specially the file ejabberdctl.

and then with Ubuntu specific packages

Well, it could be that both installations get mixed... or maybe the Ubuntu package has some problem unrelated to your previous installation. Keep all investigation lines open :)

{"init terminating in [do_boot",{undef,[{ejabberd_ctl,start,[],

This error message says that erlang cannot find the file ejabberd_ctl.beam, or that the file doesn't define the function start.

Just a wild idea: maybe you are running the "ejabberdctl" script from source installation (pointing to the old ejabberd beam files), but now you have the ejabberd beam files installed in a different location (by the Ubuntu package).

What I would do is create a permanent canvas then we draw into it.

See working sample here:
https://raw.githack.com/heldersepu/hs-scripts/master/HTML/screenshot.html

You need to display the base64 as img soure.

await is not allowed at global level i.e you can use await only inside async functions. So how to solve? use promise instead of await. like this

The "gibberish" is because you're trying to do a console.log() on binary data. That is to be expected.

However, apparently axios is doing something to the data so you're not getting the exact binary data of the image. There are probably axios settings that can correct that.

It does work fine with the got() library like this:

The exception is due to null being passed to decrypt() here: https://github.com/paragonie/ciphersweet/blob/f73aaea31f743dad8145f344d93503c4d9f950a8/src/EncryptedRow.php#L334 . Either $row[$field] contain null, or there's no such element in $row.

Inspect it with a debugger, or add some debug statements into your catch (e.g. var_dump($rowP, $row)), then check if the data contained in $row is what you expect it to be. It's also worth checking the list of fields in $rowP->fieldsToEncrypt.

I have obtained the desired result with: