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MRF Policies: Return a {:reject, reason} instead of {:reject, nil}

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Haelwenn (lanodan) Monnier 2020-07-13 15:47:13 +02:00
commit 858d9fc7e8
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20 changed files with 77 additions and 62 deletions
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2
lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex
View file

@ -60,7 +60,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.AntiFollowbotPolicy do
if score < 0.8 do
{:ok, message}
else
{:reject, nil}
{:reject, "[AntiFollowbotPolicy] Scored #{actor_id} as #{score}"}
end
end

7
lib/pleroma/web/activity_pub/mrf/anti_link_spam_policy.ex
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@ -39,14 +39,13 @@ defmodule Pleroma.Web.ActivityPub.MRF.AntiLinkSpamPolicy do
{:ok, message}
{:old_user, false} ->
{:reject, nil}
{:reject, "[AntiLinkSpamPolicy] User has no posts nor followers"}
{:error, _} ->
{:reject, nil}
{:reject, "[AntiLinkSpamPolicy] Failed to get or fetch user by ap_id"}
e ->
Logger.warn("[MRF anti-link-spam] WTF: unhandled error #{inspect(e)}")
{:reject, nil}
{:reject, "[AntiLinkSpamPolicy] Unhandled error #{inspect(e)}"}
end
end

4
lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
View file

@ -43,7 +43,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicy do
defp reject_message(message, threshold) when threshold > 0 do
with {_, recipients} <- get_recipient_count(message) do
if recipients > threshold do
{:reject, nil}
{:reject, "[HellthreadPolicy] #{recipients} recipients is over the limit of #{threshold}"}
else
{:ok, message}
end
@ -87,7 +87,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicy do
{:ok, message} <- delist_message(message, delist_threshold) do
{:ok, message}
else
_e -> {:reject, nil}
e -> e
end
end

7
lib/pleroma/web/activity_pub/mrf/keyword_policy.ex
View file

@ -24,7 +24,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.KeywordPolicy do
if Enum.any?(Pleroma.Config.get([:mrf_keyword, :reject]), fn pattern ->
string_matches?(content, pattern) or string_matches?(summary, pattern)
end) do
{:reject, nil}
{:reject, "[KeywordPolicy] Matches with rejected keyword"}
else
{:ok, message}
end
@ -89,8 +89,9 @@ defmodule Pleroma.Web.ActivityPub.MRF.KeywordPolicy do
{:ok, message} <- check_replace(message) do
{:ok, message}
else
_e ->
{:reject, nil}
{:reject, nil} -> {:reject, "[KeywordPolicy] "}
{:reject, _} = e -> e
_e -> {:reject, "[KeywordPolicy] "}
end
end

5
lib/pleroma/web/activity_pub/mrf/mention_policy.ex
View file

@ -12,8 +12,9 @@ defmodule Pleroma.Web.ActivityPub.MRF.MentionPolicy do
reject_actors = Pleroma.Config.get([:mrf_mention, :actors], [])
recipients = (message["to"] || []) ++ (message["cc"] || [])
if Enum.any?(recipients, fn recipient -> Enum.member?(reject_actors, recipient) end) do
{:reject, nil}
if rejected_mention =
Enum.find(recipients, fn recipient -> Enum.member?(reject_actors, recipient) end) do
{:reject, "[MentionPolicy] Rejected for mention of #{rejected_mention}"}
else
{:ok, message}
end

8
lib/pleroma/web/activity_pub/mrf/object_age_policy.ex
View file

@ -28,7 +28,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy do
defp check_reject(message, actions) do
if :reject in actions do
{:reject, nil}
{:reject, "[ObjectAgePolicy]"}
else
{:ok, message}
end
@ -47,9 +47,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy do
{:ok, message}
else
# Unhandleable error: somebody is messing around, just drop the message.
_e ->
{:reject, nil}
{:reject, "[ObjectAgePolicy] Unhandled error"}
end
else
{:ok, message}
@ -69,9 +68,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy do
{:ok, message}
else
# Unhandleable error: somebody is messing around, just drop the message.
_e ->
{:reject, nil}
{:reject, "[ObjectAgePolicy] Unhandled error"}
end
else
{:ok, message}

2
lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
View file

@ -38,7 +38,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.RejectNonPublic do
{:ok, object}
true ->
{:reject, nil}
{:reject, "[RejectNonPublic] visibility: #{visibility}"}
end
end

16
lib/pleroma/web/activity_pub/mrf/simple_policy.ex
View file

@ -21,7 +21,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
accepts == [] -> {:ok, object}
actor_host == Config.get([Pleroma.Web.Endpoint, :url, :host]) -> {:ok, object}
MRF.subdomain_match?(accepts, actor_host) -> {:ok, object}
true -> {:reject, nil}
true -> {:reject, "[SimplePolicy] host not in accept list"}
end
end
@ -31,7 +31,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
|> MRF.subdomains_regex()
if MRF.subdomain_match?(rejects, actor_host) do
{:reject, nil}
{:reject, "[SimplePolicy] host in reject list"}
else
{:ok, object}
end
@ -114,7 +114,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
|> MRF.subdomains_regex()
if MRF.subdomain_match?(report_removal, actor_host) do
{:reject, nil}
{:reject, "[SimplePolicy] host in report_removal list"}
else
{:ok, object}
end
@ -159,7 +159,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
|> MRF.subdomains_regex()
if MRF.subdomain_match?(reject_deletes, actor_host) do
{:reject, nil}
{:reject, "[SimplePolicy] host in reject_deletes list"}
else
{:ok, object}
end
@ -177,7 +177,9 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
{:ok, object} <- check_report_removal(actor_info, object) do
{:ok, object}
else
_e -> {:reject, nil}
{:reject, nil} -> {:reject, "[SimplePolicy]"}
{:reject, _} = e -> e
_ -> {:reject, "[SimplePolicy]"}
end
end
@ -191,7 +193,9 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
{:ok, object} <- check_banner_removal(actor_info, object) do
{:ok, object}
else
_e -> {:reject, nil}
{:reject, nil} -> {:reject, "[SimplePolicy]"}
{:reject, _} = e -> e
_ -> {:reject, "[SimplePolicy]"}
end
end

7
lib/pleroma/web/activity_pub/mrf/tag_policy.ex
View file

@ -134,12 +134,13 @@ defmodule Pleroma.Web.ActivityPub.MRF.TagPolicy do
if user.local == true do
{:ok, message}
else
{:reject, nil}
{:reject,
"[TagPolicy] Follow from #{actor} tagged with mrf_tag:disable-remote-subscription"}
end
end
defp process_tag("mrf_tag:disable-any-subscription", %{"type" => "Follow"}),
do: {:reject, nil}
defp process_tag("mrf_tag:disable-any-subscription", %{"type" => "Follow", "actor" => actor}),
do: {:reject, "[TagPolicy] Follow from #{actor} tagged with mrf_tag:disable-any-subscription"}
defp process_tag(_, message), do: {:ok, message}

2
lib/pleroma/web/activity_pub/mrf/user_allow_list_policy.ex
View file

@ -14,7 +14,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.UserAllowListPolicy do
if actor in allow_list do
{:ok, object}
else
{:reject, nil}
{:reject, "[UserAllowListPolicy] #{actor} not in the list"}
end
end

18
lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
View file

@ -11,22 +11,26 @@ defmodule Pleroma.Web.ActivityPub.MRF.VocabularyPolicy do
with {:ok, _} <- filter(child_message) do
{:ok, message}
else
{:reject, nil} ->
{:reject, nil}
{:reject, _} = e -> e
end
end
def filter(%{"type" => message_type} = message) do
with accepted_vocabulary <- Pleroma.Config.get([:mrf_vocabulary, :accept]),
rejected_vocabulary <- Pleroma.Config.get([:mrf_vocabulary, :reject]),
true <-
Enum.empty?(accepted_vocabulary) || Enum.member?(accepted_vocabulary, message_type),
false <-
length(rejected_vocabulary) > 0 && Enum.member?(rejected_vocabulary, message_type),
{_, true} <-
{:accepted,
Enum.empty?(accepted_vocabulary) || Enum.member?(accepted_vocabulary, message_type)},
{_, false} <-
{:rejected,
length(rejected_vocabulary) > 0 && Enum.member?(rejected_vocabulary, message_type)},
{:ok, _} <- filter(message["object"]) do
{:ok, message}
else
_ -> {:reject, nil}
{:reject, _} = e -> e
{:accepted, _} -> {:reject, "[VocabularyPolicy] #{message_type} not in accept list"}
{:rejected, _} -> {:reject, "[VocabularyPolicy] #{message_type} in reject list"}
_ -> {:reject, "[VocabularyPolicy]"}
end
end