From 4b18a07392558401c88a60db3751feefd9481e13 Mon Sep 17 00:00:00 2001 From: lain Date: Fri, 31 Jul 2020 15:18:04 +0000 Subject: [PATCH] Revert "Merge branch 'revert-1ac0969c' into 'develop'" This reverts merge request !2825 --- config/description.exs | 6 ++ docs/configuration/cheatsheet.md | 1 + lib/pleroma/following_relationship.ex | 6 +- .../web/activity_pub/mrf/simple_policy.ex | 31 ++++++++++ .../activity_pub/mrf/simple_policy_test.exs | 60 +++++++++++++++++++ 5 files changed, 103 insertions(+), 1 deletion(-) diff --git a/config/description.exs b/config/description.exs index 11fbe0d78..d623a9f75 100644 --- a/config/description.exs +++ b/config/description.exs @@ -1542,6 +1542,12 @@ config :pleroma, :config_description, [ description: "List of instances to only accept activities from (except deletes)", suggestions: ["example.com", "*.example.com"] }, + %{ + key: :followers_only, + type: {:list, :string}, + description: "Force posts from the given instances to be visible by followers only", + suggestions: ["example.com", "*.example.com"] + }, %{ key: :report_removal, type: {:list, :string}, diff --git a/docs/configuration/cheatsheet.md b/docs/configuration/cheatsheet.md index 9c768abef..7de82a41d 100644 --- a/docs/configuration/cheatsheet.md +++ b/docs/configuration/cheatsheet.md @@ -125,6 +125,7 @@ To add configuration to your config file, you can copy it from the base config. * `federated_timeline_removal`: List of instances to remove from Federated (aka The Whole Known Network) Timeline. * `reject`: List of instances to reject any activities from. * `accept`: List of instances to accept any activities from. +* `followers_only`: List of instances to decrease post visibility to only the followers, including for DM mentions. * `report_removal`: List of instances to reject reports from. * `avatar_removal`: List of instances to strip avatars from. * `banner_removal`: List of instances to strip banners from. diff --git a/lib/pleroma/following_relationship.ex b/lib/pleroma/following_relationship.ex index c2020d30a..83b366dd4 100644 --- a/lib/pleroma/following_relationship.ex +++ b/lib/pleroma/following_relationship.ex @@ -95,7 +95,11 @@ defmodule Pleroma.FollowingRelationship do |> where([r], r.state == ^:follow_accept) end - def followers_ap_ids(%User{} = user, from_ap_ids \\ nil) do + def followers_ap_ids(user, from_ap_ids \\ nil) + + def followers_ap_ids(_, []), do: [] + + def followers_ap_ids(%User{} = user, from_ap_ids) do query = user |> followers_query() diff --git a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex index b77b8c7b4..bb193475a 100644 --- a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex +++ b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex @@ -7,6 +7,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do @behaviour Pleroma.Web.ActivityPub.MRF alias Pleroma.Config + alias Pleroma.FollowingRelationship alias Pleroma.User alias Pleroma.Web.ActivityPub.MRF @@ -108,6 +109,35 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do {:ok, object} end + defp intersection(list1, list2) do + list1 -- list1 -- list2 + end + + defp check_followers_only(%{host: actor_host} = _actor_info, object) do + followers_only = + Config.get([:mrf_simple, :followers_only]) + |> MRF.subdomains_regex() + + object = + with true <- MRF.subdomain_match?(followers_only, actor_host), + user <- User.get_cached_by_ap_id(object["actor"]) do + # Don't use Map.get/3 intentionally, these must not be nil + fixed_to = object["to"] || [] + fixed_cc = object["cc"] || [] + + to = FollowingRelationship.followers_ap_ids(user, fixed_to) + cc = FollowingRelationship.followers_ap_ids(user, fixed_cc) + + object + |> Map.put("to", intersection([user.follower_address | to], fixed_to)) + |> Map.put("cc", intersection([user.follower_address | cc], fixed_cc)) + else + _ -> object + end + + {:ok, object} + end + defp check_report_removal(%{host: actor_host} = _actor_info, %{"type" => "Flag"} = object) do report_removal = Config.get([:mrf_simple, :report_removal]) @@ -174,6 +204,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do {:ok, object} <- check_media_removal(actor_info, object), {:ok, object} <- check_media_nsfw(actor_info, object), {:ok, object} <- check_ftl_removal(actor_info, object), + {:ok, object} <- check_followers_only(actor_info, object), {:ok, object} <- check_report_removal(actor_info, object) do {:ok, object} else diff --git a/test/web/activity_pub/mrf/simple_policy_test.exs b/test/web/activity_pub/mrf/simple_policy_test.exs index e842d8d8d..d7dde62c4 100644 --- a/test/web/activity_pub/mrf/simple_policy_test.exs +++ b/test/web/activity_pub/mrf/simple_policy_test.exs @@ -7,6 +7,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do import Pleroma.Factory alias Pleroma.Config alias Pleroma.Web.ActivityPub.MRF.SimplePolicy + alias Pleroma.Web.CommonAPI setup do: clear_config(:mrf_simple, @@ -15,6 +16,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do federated_timeline_removal: [], report_removal: [], reject: [], + followers_only: [], accept: [], avatar_removal: [], banner_removal: [], @@ -261,6 +263,64 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do end end + describe "when :followers_only" do + test "is empty" do + Config.put([:mrf_simple, :followers_only], []) + {_, ftl_message} = build_ftl_actor_and_message() + local_message = build_local_message() + + assert SimplePolicy.filter(ftl_message) == {:ok, ftl_message} + assert SimplePolicy.filter(local_message) == {:ok, local_message} + end + + test "has a matching host" do + actor = insert(:user) + following_user = insert(:user) + non_following_user = insert(:user) + + {:ok, _, _, _} = CommonAPI.follow(following_user, actor) + + activity = %{ + "actor" => actor.ap_id, + "to" => [ + "https://www.w3.org/ns/activitystreams#Public", + following_user.ap_id, + non_following_user.ap_id + ], + "cc" => [actor.follower_address, "http://foo.bar/qux"] + } + + dm_activity = %{ + "actor" => actor.ap_id, + "to" => [ + following_user.ap_id, + non_following_user.ap_id + ], + "cc" => [] + } + + actor_domain = + activity + |> Map.fetch!("actor") + |> URI.parse() + |> Map.fetch!(:host) + + Config.put([:mrf_simple, :followers_only], [actor_domain]) + + assert {:ok, new_activity} = SimplePolicy.filter(activity) + assert actor.follower_address in new_activity["cc"] + assert following_user.ap_id in new_activity["to"] + refute "https://www.w3.org/ns/activitystreams#Public" in new_activity["to"] + refute "https://www.w3.org/ns/activitystreams#Public" in new_activity["cc"] + refute non_following_user.ap_id in new_activity["to"] + refute non_following_user.ap_id in new_activity["cc"] + + assert {:ok, new_dm_activity} = SimplePolicy.filter(dm_activity) + assert new_dm_activity["to"] == [following_user.ap_id] + assert new_dm_activity["cc"] == [] + end + end + describe "when :accept" do test "is empty" do Config.put([:mrf_simple, :accept], [])