bl-imp/README.md

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## Blacklist import script
### ejabberd config
To use this script properly, a separate `yml` file is necessary, as the script will overwrite the file. To further
protect the config the `allow_only` sections defines only `acl` rules.
```yaml
"/etc/ejabberd/blacklist.yml":
allow_only:
- acl
```
### script configuration
The script is meant to be used in an automatic fashion.
Arguments:
- -dr , --dry-run : perform a dry run. `blacklist.txt` and `.etag` are written but no yaml file is overwritten.
- -o , --outfile filepath : set path to output file
The dry-run argument will output the file path, if set, in addition to the contents of the yaml file which would have be produced.
### script workflow
1. check if `.etag` file is present
2. HEAD request
2.1 requests etag and `.etag` are equal
2.1.1 use local `blacklist.txt` file
2.2 requests etag and `.etag` are _not_ equal
2.2.1 request new `blacklist.txt`
2.2.2 save new `.etag` and `blacklist.txt` file
3. process `blacklist.txt` and parse output file