diff options
| -rw-r--r-- | CHANGELOG.md | 2 | ||||
| -rw-r--r-- | config/config.exs | 3 | ||||
| -rw-r--r-- | config/description.exs | 10 | ||||
| -rw-r--r-- | docs/configuration/mrf.md | 1 | ||||
| -rw-r--r-- | lib/pleroma/web/activity_pub/mrf/simple_policy.ex | 15 | ||||
| -rw-r--r-- | test/web/activity_pub/mrf/simple_policy_test.exs | 70 |
6 files changed, 97 insertions, 4 deletions
diff --git a/CHANGELOG.md b/CHANGELOG.md index e454bd9d1..2d8e7efc3 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -14,6 +14,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/). - New HTTP adapter [gun](https://github.com/ninenines/gun). Gun adapter requires minimum OTP version of 22.2 otherwise Pleroma won’t start. For hackney OTP update is not required. - Mix task to create trusted OAuth App. - Notifications: Added `follow_request` notification type (configurable, see `[:notifications, :enable_follow_request_notifications]` setting). +- Added `:reject_deletes` group to SimplePolicy <details> <summary>API Changes</summary> - Mastodon API: Support for `include_types` in `/api/v1/notifications`. @@ -23,6 +24,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/). ### Fixed - Support pagination in conversations API +- **Breaking**: SimplePolicy `:reject` and `:accept` allow deletions again ## [unreleased-patch] ### Fixed diff --git a/config/config.exs b/config/config.exs index f44837e24..2e538c4be 100644 --- a/config/config.exs +++ b/config/config.exs @@ -336,7 +336,8 @@ config :pleroma, :mrf_simple, reject: [], accept: [], avatar_removal: [], - banner_removal: [] + banner_removal: [], + reject_deletes: [] config :pleroma, :mrf_keyword, reject: [], diff --git a/config/description.exs b/config/description.exs index b1938912c..7fac1e561 100644 --- a/config/description.exs +++ b/config/description.exs @@ -1317,13 +1317,13 @@ config :pleroma, :config_description, [ %{ key: :reject, type: {:list, :string}, - description: "List of instances to reject any activities from", + description: "List of instances to reject activities from (except deletes)", suggestions: ["example.com", "*.example.com"] }, %{ key: :accept, type: {:list, :string}, - description: "List of instances to accept any activities from", + description: "List of instances to only accept activities from (except deletes)", suggestions: ["example.com", "*.example.com"] }, %{ @@ -1343,6 +1343,12 @@ config :pleroma, :config_description, [ type: {:list, :string}, description: "List of instances to strip banners from", suggestions: ["example.com", "*.example.com"] + }, + %{ + key: :reject_deletes, + type: {:list, :string}, + description: "List of instances to reject deletions from", + suggestions: ["example.com", "*.example.com"] } ] }, diff --git a/docs/configuration/mrf.md b/docs/configuration/mrf.md index 3fcae0761..d48d0cc99 100644 --- a/docs/configuration/mrf.md +++ b/docs/configuration/mrf.md @@ -49,6 +49,7 @@ Once `SimplePolicy` is enabled, you can configure various groups in the `:mrf_si * `banner_removal`: Banner images from these servers will be stripped from incoming messages. * `report_removal`: Servers in this group will have their reports (flags) rejected. * `federated_timeline_removal`: Servers in this group will have their messages unlisted from the public timelines by flipping the `to` and `cc` fields. +* `reject_deletes`: Deletion requests will be rejected from these servers. Servers should be configured as lists. diff --git a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex index 4edc007fd..b7dcb1b86 100644 --- a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex +++ b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex @@ -149,6 +149,21 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do defp check_banner_removal(_actor_info, object), do: {:ok, object} @impl true + def filter(%{"type" => "Delete", "actor" => actor} = object) do + %{host: actor_host} = URI.parse(actor) + + reject_deletes = + Pleroma.Config.get([:mrf_simple, :reject_deletes]) + |> MRF.subdomains_regex() + + if MRF.subdomain_match?(reject_deletes, actor_host) do + {:reject, nil} + else + {:ok, object} + end + end + + @impl true def filter(%{"actor" => actor} = object) do actor_info = URI.parse(actor) diff --git a/test/web/activity_pub/mrf/simple_policy_test.exs b/test/web/activity_pub/mrf/simple_policy_test.exs index 91c24c2d9..b7b9bc6a2 100644 --- a/test/web/activity_pub/mrf/simple_policy_test.exs +++ b/test/web/activity_pub/mrf/simple_policy_test.exs @@ -17,7 +17,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do reject: [], accept: [], avatar_removal: [], - banner_removal: [] + banner_removal: [], + reject_deletes: [] ) describe "when :media_removal" do @@ -382,6 +383,66 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do end end + describe "when :reject_deletes is empty" do + setup do: Config.put([:mrf_simple, :reject_deletes], []) + + test "it accepts deletions even from rejected servers" do + Config.put([:mrf_simple, :reject], ["remote.instance"]) + + deletion_message = build_remote_deletion_message() + + assert SimplePolicy.filter(deletion_message) == {:ok, deletion_message} + end + + test "it accepts deletions even from non-whitelisted servers" do + Config.put([:mrf_simple, :accept], ["non.matching.remote"]) + + deletion_message = build_remote_deletion_message() + + assert SimplePolicy.filter(deletion_message) == {:ok, deletion_message} + end + end + + describe "when :reject_deletes is not empty but it doesn't have a matching host" do + setup do: Config.put([:mrf_simple, :reject_deletes], ["non.matching.remote"]) + + test "it accepts deletions even from rejected servers" do + Config.put([:mrf_simple, :reject], ["remote.instance"]) + + deletion_message = build_remote_deletion_message() + + assert SimplePolicy.filter(deletion_message) == {:ok, deletion_message} + end + + test "it accepts deletions even from non-whitelisted servers" do + Config.put([:mrf_simple, :accept], ["non.matching.remote"]) + + deletion_message = build_remote_deletion_message() + + assert SimplePolicy.filter(deletion_message) == {:ok, deletion_message} + end + end + + describe "when :reject_deletes has a matching host" do + setup do: Config.put([:mrf_simple, :reject_deletes], ["remote.instance"]) + + test "it rejects the deletion" do + deletion_message = build_remote_deletion_message() + + assert SimplePolicy.filter(deletion_message) == {:reject, nil} + end + end + + describe "when :reject_deletes match with wildcard domain" do + setup do: Config.put([:mrf_simple, :reject_deletes], ["*.remote.instance"]) + + test "it rejects the deletion" do + deletion_message = build_remote_deletion_message() + + assert SimplePolicy.filter(deletion_message) == {:reject, nil} + end + end + defp build_local_message do %{ "actor" => "#{Pleroma.Web.base_url()}/users/alice", @@ -408,4 +469,11 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do "type" => "Person" } end + + defp build_remote_deletion_message do + %{ + "type" => "Delete", + "actor" => "https://remote.instance/users/bob" + } + end end |