noteguard

A high performance note filter plugin system for strfry

WIP!

Usage

Filters are registered and loaded from the noteguard.toml config.

You can add any new filter you want by implementing the NoteFilter trait and registering it with noteguard via the register_filter method.

The pipeline config specifies the order in which filters are run. When the first reject or shadowReject action is hit, then the pipeline stops and returns the rejection error.

pipeline = ["ratelimit"]

[filters.ratelimit]
notes_per_minute = 8
whitelist = ["127.0.0.1"]

Filters

You can use any of the builtin filters, or create your own!

This is the initial release, and only includes one filter so far:

Ratelimit

The ratelimit filter limits the rate at which notes are written to the relay per-ip.

Settings:

• notes_per_minute: the number of notes per minute which are allowed to be written per ip.

• whitelist: a list of IP4 or IP6 addresses that are allowed to bypass the ratelimit.

Testing

You can test your filters like so:

$ cargo build --release
$ ./target/release/noteguard
$ <test/test-inputs ./target/release/noteguard