Blacklist import script

installation

Python 3 virtual environment

# Debian
apt install python-virtualenv

# Arch
pacman -S python-virtualenv

# create a venv folder inside the cloned repository
mkdir venv
virtualenv -p python3 venv/

source ./venv/bin/activate
pip install -r requirements.txt

usage main.py

usage: main.py [-h] [-o OUTFILE] [-dr]

optional arguments:
  -h, --help            show this help message and exit
  -o OUTFILE, --outfile OUTFILE
                        set path to output file
  -dr, --dry-run        perform a dry run

without any arguments

Running main.py without any arguments, will cause the tool to update the local cache and the corresponding .etag file. After that the script will output the following error followed by the help message to stderr, before exiting with error code 2

no outfile assigned
...

dry run

If main.py is executed with -dr or --dry-run as argument the output would look like this. The script will check the blacklist repository and output everything to stdout without touching any system file besides the local .etag file.

$ /path/blacklist_import: python main.py --dr
outfile selected: None
acl:
  spamblacklist:
    server:
      - "a-server.tld"
      - "b-server.tld"

--outfile /path/

Run without the --dry-run argument and a valid outfile, the script will return nothing and do its thing.

ejabberd reload_config

The ejabberd instance will be reloaded automatically, but only if changes in the outfile occurred.

configuration

ejabberd

To use this script properly, you need to add this line to the ACL section of your ejabberd instance. Furthermore a separate yml file is necessary. To further protect the integrity of your config the allow_only sections defines only acl rules.

  "/etc/ejabberd/blacklist.yml":
    allow_only:
      - acl

script itself

The script is meant to be used in an automatic fashion.

For example the script could be executed every day at 00:01 to automatically add and remove affected servers from the blacklist file.

# jabber blacklist update

# with virtualenv enabled
1 0 * * * /path/blacklist_import/venv/bin/python /path/blacklist_import/main.py -o  /etc/ejabberd/config/blacklist.yml

# without virtualenv
1 0 * * * python3 /path/blacklist_import/main.py -o  /etc/ejabberd/config/blacklist.yml