* `:strip_followers` removes followers from the ActivityPub recipient list, ensuring they won't be delivered to home timelines
* `:reject` rejects the message entirely
+#### mrf_steal_emoji
+* `hosts`: List of hosts to steal emojis from
+* `rejected_shortcodes`: Regex-list of shortcodes to reject
+* `size_limit`: File size limit (in bytes), checked before an emoji is saved to the disk
+
### :activitypub
* `unfollow_blocked`: Whether blocks result in people getting unfollowed
* `outgoing_blocks`: Whether to federate blocks to other instances
* `base_url`: The base URL to access a user-uploaded file. Useful when you want to proxy the media files via another host/CDN fronts.
* `proxy_opts`: All options defined in `Pleroma.ReverseProxy` documentation, defaults to `[max_body_length: (25*1_048_576)]`.
* `whitelist`: List of domains to bypass the mediaproxy
+* `invalidation`: options for remove media from cache after delete object:
+ * `enabled`: Enables purge cache
+ * `provider`: Which one of the [purge cache strategy](#purge-cache-strategy) to use.
+
+### Purge cache strategy
+
+#### Pleroma.Web.MediaProxy.Invalidation.Script
+
+This strategy allow perform external bash script to purge cache.
+Urls of attachments pass to script as arguments.
+
+* `script_path`: path to external script.
+
+Example:
+```elixir
+config :pleroma, Pleroma.Web.MediaProxy.Invalidation.Script,
+ script_path: "./installation/nginx-cache-purge.example"
+```
+
+#### Pleroma.Web.MediaProxy.Invalidation.Http
+
+This strategy allow perform custom http request to purge cache.
+
+* `method`: http method. default is `purge`
+* `headers`: http headers. default is empty
+* `options`: request options. default is empty
+
+Example:
+```elixir
+config :pleroma, Pleroma.Web.MediaProxy.Invalidation.Http,
+ method: :purge,
+ headers: [],
+ options: []
+```
## Link previews
* `base_url`: The base URL to access a user-uploaded file. Useful when you want to proxy the media files via another host.
* `proxy_remote`: If you're using a remote uploader, Pleroma will proxy media requests instead of redirecting to it.
* `proxy_opts`: Proxy options, see `Pleroma.ReverseProxy` documentation.
+* `filename_display_max_length`: Set max length of a filename to display. 0 = no limit. Default: 30.
!!! warning
`strip_exif` has been replaced by `Pleroma.Upload.Filter.Mogrify`.