defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
alias Pleroma.User
+ alias Pleroma.Web.ActivityPub.MRF
@moduledoc "Filter activities depending on their origin instance"
@behaviour Pleroma.Web.ActivityPub.MRF
+ require Pleroma.Constants
+
defp check_accept(%{host: actor_host} = _actor_info, object) do
- accepts = Pleroma.Config.get([:mrf_simple, :accept])
+ accepts =
+ Pleroma.Config.get([:mrf_simple, :accept])
+ |> MRF.subdomains_regex()
cond do
accepts == [] -> {:ok, object}
actor_host == Pleroma.Config.get([Pleroma.Web.Endpoint, :url, :host]) -> {:ok, object}
- Enum.member?(accepts, actor_host) -> {:ok, object}
+ MRF.subdomain_match?(accepts, actor_host) -> {:ok, object}
true -> {:reject, nil}
end
end
defp check_reject(%{host: actor_host} = _actor_info, object) do
- if Enum.member?(Pleroma.Config.get([:mrf_simple, :reject]), actor_host) do
+ rejects =
+ Pleroma.Config.get([:mrf_simple, :reject])
+ |> MRF.subdomains_regex()
+
+ if MRF.subdomain_match?(rejects, actor_host) do
{:reject, nil}
else
{:ok, object}
%{"type" => "Create", "object" => %{"attachment" => child_attachment}} = object
)
when length(child_attachment) > 0 do
+ media_removal =
+ Pleroma.Config.get([:mrf_simple, :media_removal])
+ |> MRF.subdomains_regex()
+
object =
- if Enum.member?(Pleroma.Config.get([:mrf_simple, :media_removal]), actor_host) do
+ if MRF.subdomain_match?(media_removal, actor_host) do
child_object = Map.delete(object["object"], "attachment")
Map.put(object, "object", child_object)
else
%{host: actor_host} = _actor_info,
%{
"type" => "Create",
- "object" => %{"attachment" => child_attachment} = child_object
+ "object" => child_object
} = object
- )
- when length(child_attachment) > 0 do
+ ) do
+ media_nsfw =
+ Pleroma.Config.get([:mrf_simple, :media_nsfw])
+ |> MRF.subdomains_regex()
+
object =
- if Enum.member?(Pleroma.Config.get([:mrf_simple, :media_nsfw]), actor_host) do
+ if MRF.subdomain_match?(media_nsfw, actor_host) do
tags = (child_object["tag"] || []) ++ ["nsfw"]
child_object = Map.put(child_object, "tag", tags)
child_object = Map.put(child_object, "sensitive", true)
defp check_media_nsfw(_actor_info, object), do: {:ok, object}
defp check_ftl_removal(%{host: actor_host} = _actor_info, object) do
+ timeline_removal =
+ Pleroma.Config.get([:mrf_simple, :federated_timeline_removal])
+ |> MRF.subdomains_regex()
+
object =
- with true <-
- Enum.member?(
- Pleroma.Config.get([:mrf_simple, :federated_timeline_removal]),
- actor_host
- ),
+ with true <- MRF.subdomain_match?(timeline_removal, actor_host),
user <- User.get_cached_by_ap_id(object["actor"]),
- true <- "https://www.w3.org/ns/activitystreams#Public" in object["to"],
- true <- user.follower_address in object["cc"] do
- to =
- List.delete(object["to"], "https://www.w3.org/ns/activitystreams#Public") ++
- [user.follower_address]
+ true <- Pleroma.Constants.as_public() in object["to"] do
+ to = List.delete(object["to"], Pleroma.Constants.as_public()) ++ [user.follower_address]
- cc =
- List.delete(object["cc"], user.follower_address) ++
- ["https://www.w3.org/ns/activitystreams#Public"]
+ cc = List.delete(object["cc"], user.follower_address) ++ [Pleroma.Constants.as_public()]
object
|> Map.put("to", to)
{:ok, object}
end
+ defp check_report_removal(%{host: actor_host} = _actor_info, %{"type" => "Flag"} = object) do
+ report_removal =
+ Pleroma.Config.get([:mrf_simple, :report_removal])
+ |> MRF.subdomains_regex()
+
+ if MRF.subdomain_match?(report_removal, actor_host) do
+ {:reject, nil}
+ else
+ {:ok, object}
+ end
+ end
+
+ defp check_report_removal(_actor_info, object), do: {:ok, object}
+
+ defp check_avatar_removal(%{host: actor_host} = _actor_info, %{"icon" => _icon} = object) do
+ avatar_removal =
+ Pleroma.Config.get([:mrf_simple, :avatar_removal])
+ |> MRF.subdomains_regex()
+
+ if MRF.subdomain_match?(avatar_removal, actor_host) do
+ {:ok, Map.delete(object, "icon")}
+ else
+ {:ok, object}
+ end
+ end
+
+ defp check_avatar_removal(_actor_info, object), do: {:ok, object}
+
+ defp check_banner_removal(%{host: actor_host} = _actor_info, %{"image" => _image} = object) do
+ banner_removal =
+ Pleroma.Config.get([:mrf_simple, :banner_removal])
+ |> MRF.subdomains_regex()
+
+ if MRF.subdomain_match?(banner_removal, actor_host) do
+ {:ok, Map.delete(object, "image")}
+ else
+ {:ok, object}
+ end
+ end
+
+ defp check_banner_removal(_actor_info, object), do: {:ok, object}
+
@impl true
- def filter(object) do
- actor_info = URI.parse(object["actor"])
+ def filter(%{"actor" => actor} = object) do
+ actor_info = URI.parse(actor)
with {:ok, object} <- check_accept(actor_info, object),
{:ok, object} <- check_reject(actor_info, object),
{:ok, object} <- check_media_removal(actor_info, object),
{:ok, object} <- check_media_nsfw(actor_info, object),
- {:ok, object} <- check_ftl_removal(actor_info, object) do
+ {:ok, object} <- check_ftl_removal(actor_info, object),
+ {:ok, object} <- check_report_removal(actor_info, object) do
+ {:ok, object}
+ else
+ _e -> {:reject, nil}
+ end
+ end
+
+ def filter(%{"id" => actor, "type" => obj_type} = object)
+ when obj_type in ["Application", "Group", "Organization", "Person", "Service"] do
+ actor_info = URI.parse(actor)
+
+ with {:ok, object} <- check_accept(actor_info, object),
+ {:ok, object} <- check_reject(actor_info, object),
+ {:ok, object} <- check_avatar_removal(actor_info, object),
+ {:ok, object} <- check_banner_removal(actor_info, object) do
{:ok, object}
else
_e -> {:reject, nil}
end
end
+
+ def filter(object), do: {:ok, object}
+
+ @impl true
+ def describe do
+ exclusions = Pleroma.Config.get([:instance, :mrf_transparency_exclusions])
+
+ mrf_simple =
+ Pleroma.Config.get(:mrf_simple)
+ |> Enum.map(fn {k, v} -> {k, Enum.reject(v, fn v -> v in exclusions end)} end)
+ |> Enum.into(%{})
+
+ {:ok, %{mrf_simple: mrf_simple}}
+ end
end
projects / akkoma / blobdiff