From e53a9fd15e6749c87193f829f4d33fea1406a21f Mon Sep 17 00:00:00 2001 From: William Pitcock Date: Thu, 7 Mar 2019 12:13:48 +0000 Subject: [PATCH 1/2] MRF: anti followbot: gracefully handle accounts without a display name --- .../web/activity_pub/mrf/anti_followbot_policy.ex | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex b/lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex index 7c6ad582a..34665a3a6 100644 --- a/lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex +++ b/lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex @@ -23,15 +23,21 @@ defmodule Pleroma.Web.ActivityPub.MRF.AntiFollowbotPolicy do defp score_displayname(_), do: 0.0 defp determine_if_followbot(%User{nickname: nickname, name: displayname}) do + # nickname will always be a binary string because it's generated by Pleroma. nick_score = nickname |> String.downcase() |> score_nickname() + # displayname will either be a binary string or nil, if a displayname isn't set. name_score = - displayname - |> String.downcase() - |> score_displayname() + if is_binary(displayname) do + displayname + |> String.downcase() + |> score_displayname() + else + 0.0 + end nick_score + name_score end From 3c5926fe913287ee00a0efb93d2a8ecbddfd26c7 Mon Sep 17 00:00:00 2001 From: William Pitcock Date: Thu, 7 Mar 2019 12:20:04 +0000 Subject: [PATCH 2/2] tests: add regression test --- .../mrf/anti_followbot_policy_test.exs | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/test/web/activity_pub/mrf/anti_followbot_policy_test.exs b/test/web/activity_pub/mrf/anti_followbot_policy_test.exs index 2ea4f9d3f..37a7bfcf7 100644 --- a/test/web/activity_pub/mrf/anti_followbot_policy_test.exs +++ b/test/web/activity_pub/mrf/anti_followbot_policy_test.exs @@ -54,4 +54,19 @@ defmodule Pleroma.Web.ActivityPub.MRF.AntiFollowbotPolicyTest do {:ok, _} = AntiFollowbotPolicy.filter(message) end + + test "it gracefully handles nil display names" do + actor = insert(:user, %{name: nil}) + target = insert(:user) + + message = %{ + "@context" => "https://www.w3.org/ns/activitystreams", + "type" => "Follow", + "actor" => actor.ap_id, + "object" => target.ap_id, + "id" => "https://example.com/activities/1234" + } + + {:ok, _} = AntiFollowbotPolicy.filter(message) + end end