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-rw-r--r--lib/pleroma/web/activity_pub/mrf/follow_bot_policy.ex59
1 files changed, 59 insertions, 0 deletions
diff --git a/lib/pleroma/web/activity_pub/mrf/follow_bot_policy.ex b/lib/pleroma/web/activity_pub/mrf/follow_bot_policy.ex
new file mode 100644
index 000000000..7cf7de068
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/mrf/follow_bot_policy.ex
@@ -0,0 +1,59 @@
+defmodule Pleroma.Web.ActivityPub.MRF.FollowBotPolicy do
+ @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+ alias Pleroma.Config
+ alias Pleroma.User
+ alias Pleroma.Web.CommonAPI
+
+ require Logger
+
+ @impl true
+ def filter(message) do
+ with follower_nickname <- Config.get([:mrf_follow_bot, :follower_nickname]),
+ %User{actor_type: "Service"} = follower <-
+ User.get_cached_by_nickname(follower_nickname),
+ %{"type" => "Create", "object" => %{"type" => "Note"}} <- message do
+ try_follow(follower, message)
+ else
+ nil ->
+ Logger.warn(
+ "#{__MODULE__} skipped because of missing `:mrf_follow_bot, :follower_nickname` configuration, the :follower_nickname
+ account does not exist, or the account is not correctly configured as a bot."
+ )
+
+ {:ok, message}
+
+ _ ->
+ {:ok, message}
+ end
+ end
+
+ defp try_follow(follower, message) do
+ to = Map.get(message, "to", [])
+ cc = Map.get(message, "cc", [])
+ actor = [message["actor"]]
+
+ Enum.concat([to, cc, actor])
+ |> List.flatten()
+ |> Enum.uniq()
+ |> User.get_all_by_ap_id()
+ |> Enum.each(fn user ->
+ with false <- user.local,
+ false <- User.following?(follower, user),
+ false <- User.locked?(user),
+ false <- (user.bio || "") |> String.downcase() |> String.contains?("nobot") do
+ Logger.debug(
+ "#{__MODULE__}: Follow request from #{follower.nickname} to #{user.nickname}"
+ )
+
+ CommonAPI.follow(follower, user)
+ end
+ end)
+
+ {:ok, message}
+ end
+
+ @impl true
+ def describe do
+ {:ok, %{}}
+ end
+end