refactored code

This commit is contained in:
Karen Konou 2019-02-13 16:23:09 +01:00
parent adcdd21f16
commit bef9b9cb66

View file

@ -7,56 +7,66 @@ defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicy do
@behaviour Pleroma.Web.ActivityPub.MRF
defp delist_message(message) do
delist_threshold = Pleroma.Config.get([:mrf_hellthread, :delist_threshold])
follower_collection = User.get_cached_by_ap_id(message["actor"]).follower_address
message
|> Map.put("to", [follower_collection])
|> Map.put("cc", ["https://www.w3.org/ns/activitystreams#Public"])
message =
with {:public, recipients} <- get_recipient_count(message) do
if recipients > delist_threshold and delist_threshold > 0 do
message
|> Map.put("to", [follower_collection])
|> Map.put("cc", ["https://www.w3.org/ns/activitystreams#Public"])
else
message
end
else
_ -> message
end
{:ok, message}
end
defp get_recipient_count(message) do
recipients = (message["to"] || []) ++ (message["cc"] || [])
cond do
Enum.member?(recipients, "https://www.w3.org/ns/activitystreams#Public") &&
Enum.find(recipients, &String.ends_with?(&1, "/followers")) ->
length(recipients) - 2
Enum.member?(recipients, "https://www.w3.org/ns/activitystreams#Public") ||
Enum.find(recipients, &String.ends_with?(&1, "/followers")) ->
length(recipients) - 1
true ->
length(recipients)
end
end
@impl true
def filter(%{"type" => "Create"} = message) do
delist_threshold = Pleroma.Config.get([:mrf_hellthread, :delist_threshold])
defp reject_message(message) do
reject_threshold =
Pleroma.Config.get(
[:mrf_hellthread, :reject_threshold],
Pleroma.Config.get([:mrf_hellthread, :threshold])
)
recipients = get_recipient_count(message)
cond do
recipients > reject_threshold and reject_threshold > 0 ->
with {_, recipients} <- get_recipient_count(message) do
if recipients > reject_threshold and reject_threshold > 0 do
{:reject, nil}
recipients > delist_threshold and delist_threshold > 0 ->
if Enum.member?(message["to"], "https://www.w3.org/ns/activitystreams#Public") or
Enum.member?(message["cc"], "https://www.w3.org/ns/activitystreams#Public") do
{:ok, delist_message(message)}
else
{:ok, message}
end
true ->
else
{:ok, message}
end
end
end
defp get_recipient_count(message) do
recipients = (message["to"] || []) ++ (message["cc"] || [])
follower_collection = User.get_cached_by_ap_id(message["actor"]).follower_address
if Enum.member?(recipients, "https://www.w3.org/ns/activitystreams#Public") do
recipients
|> List.delete("https://www.w3.org/ns/activitystreams#Public")
|> List.delete(follower_collection)
{:public, length(recipients)}
else
recipients
|> List.delete(follower_collection)
{:not_public, length(recipients)}
end
end
@impl true
def filter(%{"type" => "Create"} = message) do
with {:ok, message} <- reject_message(message),
{:ok, message} <- delist_message(message) do
{:ok, message}
else
_e -> {:reject, nil}
end
end