scripts/afu

Python Script for Downloading the Latest Amateur Radio Callbook of Austria

(c) KW4NZ since 2024

• Guide is based on Debian 12.5, and Arch Linux
• Last modified 2024-06-12

Prerequisites

1. A running Linux system, e.g. Debian, Arch, etc.
2. User has administrative access via sudo
3. Python Version >3
4. Chromium Web browser (headless)
5. Selenium for Python via Webdriver Manager
6. Optional: User has an ssh key pair
7. Optional: git, ? wget, ? curl

Installation of Python, Selenium, Chromium

Debian Linux

Check Version

$ cat /etc/debian_version
12.5

$ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 12 (bookworm)"
NAME="Debian GNU/Linux"
VERSION_ID="12"
VERSION="12 (bookworm)"
VERSION_CODENAME=bookworm
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

Upgrade your Debian installation if the version is lower than the above value.

Update/Upgrade Debian

$ sudo apt update
$ sudo apt upgrade

If this does not work, then the user <username> must be added to the sudo group with :

$ su -
Password:
root@debian:~# usermod -aG sudo <username>

For the group membership to take effect, the user must log out and log in again or the system must be restarted.

Python3

Check if Python is already installed in Debian:

$ python3 --version
Python 3.11.2

If it is not already installed, then:

$ sudo apt install python3

Chromium Browser

$ sudo apt install chromium-driver

Manager (selenium)

Afterwards, selenium is installed:

$ sudo apt install python3-selenium

SSH key generation

The program openssh is preinstalled on Debian systems. But there is no private/public key installed yet. Best practices generating the key pair:

$ ssh-keygen -t ed25519 -C "your_email@example.com"

Personally, I don't use a different name for the keys, I just click through the process. The same applies to the passphrase. Now go to the website https://git.kuschel.at and copy the content of the public key from ~/.ssh/id__ed25519.pub to the "Manage SSH keys" -- via "Add Key".

$ cat .ssh/id_ed25519.pub

Git installation and clone the scripts from git.kuschel.at

$ sudo apt install git

You have to globally configure your git with:

$ git config --global user.name "John Doe"
$ git config --global user.email your_email@example.com

Checking the git configuration with:

$ git config -l
user.name=<your name>
user.email=<your e-mail>
 etc.

Now create a folder and cd into it

$ mkdir gitea
$ cd gitea

Clone the repository script to your site with:

~/gitea$ git clone ssh://git@kuschel.at:21861/public/scripts.git

Check and Test a Website

Either go to the directory ~/gitea/scripts/afu/ and run the file test.py or create a similar one:

#!/usr/bin/python3
from selenium import webdriver
from selenium.webdriver.chrome.service import Service as ChromiumService
print('We try to connect to https://kuschel.at and get an answer "Family Kuschel and friends"')
options = webdriver.ChromeOptions()
options.add_argument('--headless')
options.add_argument('--no-sandbox')
options.add_argument('--disable-dev-shm-usage')
driver = webdriver.Chrome(options=options)
driver.get("https://kuschel.at")
print(driver.title)
driver.close()

--

Arch Linux (@todo)

Check Version

$ cat /etc/lsb-release
DISTRIB_ID="Arch"
DISTRIB_RELEASE="rolling"
DISTRIB_DESCRIPTION="Arch Linux"

$ cat /etc/os-release
NAME="Arch Linux"
PRETTY_NAME="Arch Linux"
ID=arch
BUILD_ID=rolling
ANSI_COLOR="38;2;23;147;209"
HOME_URL="https://archlinux.org/"
DOCUMENTATION_URL="https://wiki.archlinux.org/"
SUPPORT_URL="https://bbs.archlinux.org/"
BUG_REPORT_URL="https://gitlab.archlinux.org/groups/archlinux/-/issues"
PRIVACY_POLICY_URL="https://terms.archlinux.org/docs/privacy-policy/"
LOGO=archlinux-logo

Update Arch Linux

Because Arch linux is a rolling distribution, simply update the version to the latest version with:

$ sudo pacman -Syuv

Installing of yay (package manager yet another yogurt)

$ sudo pacman -Sy --needed git base-devel
$ cd
$ git clone https://aur.archlinux.org/yay.git
$ cd yay
$ makepkg -si

Python3

Check if Python is already installed in Arch Linux:

$ python --version
Python 3.12.3

If it is not already installed, then:

$ yay -S python

Chromium Browser

$ yay -S chromium

Manager (selenium)

Afterwards, selenium is installed:

$ yay -S python-selenium 

$ yay -S selenium-manager

SSH key generation

The program openssh is not preinstalled on Arch Linux. Also, there is no private/public key installed yet.

$ yay -S openssh

Best practices generating the key pair:

$ ssh-keygen -t ed25519 -C "your_email@example.com"

Personally, I don't use a different name for the keys, I just click through the process. The same applies to the passphrase. Now go to the website https://git.kuschel.at and copy the content of the public key from ~/.ssh/id__ed25519.pub to the "Manage SSH keys" -- via "Add Key".

$ cat .ssh/id_ed25519.pub

Git installation and clone the scripts from git.kuschel.at

$ yay -S git less

You have to globally configure your git with:

$ git config --global user.name "John Doe"
$ git config --global user.email your_email@example.com

Checking the git configuration with:

$ git config -l
user.name=<your name>
user.email=<your e-mail>
 etc.

Now create a folder and cd into it

$ mkdir gitea
$ cd gitea

Clone the repository script to your site with:

~/gitea$ git clone ssh://git@kuschel.at:21861/public/scripts.git

Connecting to MariaDB database

Install mariadb database

$ yay -S mariadb

Configure the database with e.g.

$ sudo mariadb-install-db --user=mysql --basedir=/usr --datadir=/var/lib/mysql

Enable and start the database service with:

$ sudo systemctrl enable mariadb.service
$ sudo systemctrl start mariadb.service

Create a user "om" who has only access to the database table

# mariadb

CREATE DATABASE callbook;

GRANT ALL PRIVILEGES ON callbook.* TO 'om'@'localhost' IDENTIFIED BY 'oe3tkt';

FLUSH PRIVILEGES;
QUIT;

Install python-mariadb

$ yay -S python-mysql-connector

Hint: At the moment the compilation fails. Will be updated soon. See https://jira.mariadb.org/projects/CONPY/issues/CONPY-284 (2024-06-16)