akkoma/CONFIGURATION.md

# Configuring Pleroma

In the `config/` directory, you will find the following relevant files:

* `config.exs`: default base configuration
* `dev.exs`: default additional configuration for `MIX_ENV=dev`
* `prod.exs`: default additional configuration for `MIX_ENV=prod`


Do not modify files in the list above.
Instead, overload the settings by editing the following files:

* `dev.secret.exs`: custom additional configuration for `MIX_ENV=dev`
* `prod.secret.exs`: custom additional configuration for `MIX_ENV=prod`

## Message Rewrite Filters (MRFs)

Modify incoming and outgoing posts.

    config :pleroma, :instance,
      rewrite_policy: Pleroma.Web.ActivityPub.MRF.NoOpPolicy

`rewrite_policy` specifies which MRF policies to apply.
It can either be a single policy or a list of policies.
Currently, MRFs availible by default are:

* `Pleroma.Web.ActivityPub.MRF.NoOpPolicy`
* `Pleroma.Web.ActivityPub.MRF.DropPolicy`
* `Pleroma.Web.ActivityPub.MRF.SimplePolicy`
* `Pleroma.Web.ActivityPub.MRF.RejectNonPublic`

Some policies, such as SimplePolicy and RejectNonPublic,
can be additionally configured in their respective sections.

### NoOpPolicy

Does not modify posts (this is the default `rewrite_policy`)

### DropPolicy

Drops all posts.
It generally does not make sense to use this in production.

### SimplePolicy

Restricts the visibility of posts from certain instances.

    config :pleroma, :mrf_simple,
      media_removal: [],
      media_nsfw: [],
      federated_timeline_removal: [],
      reject: [],
      accept: []

* `media_removal`: posts from these instances will have attachments 
   removed
* `media_nsfw`: posts from these instances will have attachments marked
   as nsfw
* `federated_timeline_removal`: posts from these instances will be 
   marked as unlisted
* `reject`: posts from these instances will be dropped
* `accept`: if not empty, only posts from these instances will be accepted

### RejectNonPublic

Drops posts with non-public visibility settings.

    config :pleroma :mrf_rejectnonpublic
      allow_followersonly: false,
      allow_direct: false,

* `allow_followersonly`: whether to allow follower-only posts through
   the filter
* `allow_direct`: whether to allow direct messages through the filter