Bepasty image uploader

For many years I used bepasty-client-cli to upload my screenshots via script to my paste-bin: bepasty-server. Somehow broke the bepasty-cli a few days ago and I don't want to invest time in an unmainted cli client.

First I tried to solve the upload by only using curl and base64. But actually figuring out what to set for Content-Length and Content-Range with only getting 400 errors from bepasty-server was so annoying, that I canceled my solution attempt.

My working solution (bepasty-upload-image.py) borrowed as little code as possible from bepasty-cli:

import base64
import sys
import click
import requests

@click.command()
@click.option("-u", "--url")
@click.option("-p", "--password")
@click.option("-f", "--filename")
def main(url, password, filename):
    with open(filename, "rb") as fp:
        raw_data = fp.read()
        payload = base64.b64encode(raw_data)
        raw_data_size = len(raw_data)
        filesize = raw_data_size

        headers = {
            "Content-Range": "bytes %d-%d/%d" % (0, 0 + raw_data_size - 1, filesize),
            "Content-Type": "image/png",
            "Content-Filename": "screen.png",
            "Content-Length": str(len(payload)),
            "Maxlife-Unit": "FOREVER",
            "Maxlife-Value": "1",
        }

        r = requests.post(
            "{}/apis/rest/items".format(url),
            data=payload,
            headers=headers,
            auth=("user", password),
        )
        if r.status_code == 201:
            loc = r.headers["Content-Location"].split("/")[-1]
            click.echo(f"{url}/{loc}")
        else:
            click.echo(r.text)
            sys.exit(1)

if __name__ == "__main__":
    main()
This code doesn't support chunked uploads. For image files this should never be a problem to always upload the whole file.
Printing the url with the filename is important, because in the script this is called the url is automaticaly opened via xdg-open.

My takescreenshot.sh looks like this:

#!/bin/bash

old=$(xsel -o -b)
sleep 0.1
f=$(scrot -s -e 'echo $f')
result=$(python ~/bin/bepasty-upload-image.py -p PASSWORD -u https://some-paste-bin-url.example -f $f)
if [ "$?" -ne "0" ]; then
    echo $result; exit 1
fi
echo $result | head -n 1 | xsel -i -b
url=$(xsel -o -b)
if [ "$old" != "$url" ]; then
    xdg-open $url
fi
rm $f