+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
defmodule Pleroma.Web.ActivityPub.MRF.EnsureRePrepended do
alias Pleroma.Object
@behaviour Pleroma.Web.ActivityPub.MRF
+ @reply_prefix Regex.compile!("^re:[[:space:]]*", [:caseless])
def filter_by_summary(
- %{"summary" => parent_summary} = parent,
+ %{"summary" => parent_summary} = _parent,
%{"summary" => child_summary} = child
)
- when not is_nil(child_summary) and child_summary == parent_summary and
- byte_size(child_summary) > 1 do
- if not String.starts_with?(child_summary, "re:") do
+ when not is_nil(child_summary) and byte_size(child_summary) > 0 and
+ not is_nil(parent_summary) and byte_size(parent_summary) > 0 do
+ if (child_summary == parent_summary and not Regex.match?(@reply_prefix, child_summary)) or
+ (Regex.match?(@reply_prefix, parent_summary) &&
+ Regex.replace(@reply_prefix, parent_summary, "") == child_summary) do
Map.put(child, "summary", "re: " <> child_summary)
else
child
end
end
- def filter_by_summary(parent, child), do: child
+ def filter_by_summary(_parent, child), do: child
def filter(%{"type" => activity_type} = object) when activity_type == "Create" do
child = object["object"]