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Also use actor_type to determine if an account is a bot in antiFollowbotPolicy

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Ilja 2022-05-08 18:10:40 +00:00 • committed by Haelwenn
commit a8093732bd
4 changed files with 65 additions and 15 deletions
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21
lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex
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@ -24,7 +24,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.AntiFollowbotPolicy do
defp score_displayname("fedibot"), do: 1.0
defp score_displayname(_), do: 0.0
defp determine_if_followbot(%User{nickname: nickname, name: displayname}) do
defp determine_if_followbot(%User{nickname: nickname, name: displayname, actor_type: actor_type}) do
# nickname will be a binary string except when following a relay
nick_score =
if is_binary(nickname) do
@ -45,19 +45,32 @@ defmodule Pleroma.Web.ActivityPub.MRF.AntiFollowbotPolicy do
0.0
end
nick_score + name_score
# actor_type "Service" is a Bot account
actor_type_score =
if actor_type == "Service" do
1.0
else
0.0
end
nick_score + name_score + actor_type_score
end
defp determine_if_followbot(_), do: 0.0
defp bot_allowed?(%{"object" => target}, bot_actor) do
%User{} = user = normalize_by_ap_id(target)
User.following?(user, bot_actor)
end
@impl true
def filter(%{"type" => "Follow", "actor" => actor_id} = message) do
%User{} = actor = normalize_by_ap_id(actor_id)
score = determine_if_followbot(actor)
# TODO: scan biography data for keywords and score it somehow.
if score < 0.8 do
if score < 0.8 || bot_allowed?(message, actor) do
{:ok, message}
else
{:reject, "[AntiFollowbotPolicy] Scored #{actor_id} as #{score}"}