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diff --git a/lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex b/lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex
index 2627a0007..3bf70b894 100644
--- a/lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex
+++ b/lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex
@@ -1,44 +1,45 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.EnsureRePrepended do
alias Pleroma.Object
@moduledoc "Ensure a re: is prepended on replies to a post with a Subject"
@behaviour Pleroma.Web.ActivityPub.MRF
@reply_prefix Regex.compile!("^re:[[:space:]]*", [:caseless])
def filter_by_summary(
%{data: %{"summary" => parent_summary}} = _in_reply_to,
%{"summary" => child_summary} = child
)
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(_in_reply_to, child), do: child
- def filter(%{"type" => "Create", "object" => child_object} = object) do
+ def filter(%{"type" => "Create", "object" => child_object} = object)
+ when is_map(child_object) do
child =
child_object["inReplyTo"]
|> Object.normalize(child_object["inReplyTo"])
|> filter_by_summary(child_object)
object = Map.put(object, "object", child)
{:ok, object}
end
def filter(object), do: {:ok, object}
def describe, do: {:ok, %{}}
end
diff --git a/test/web/activity_pub/mrf/ensure_re_prepended_test.exs b/test/web/activity_pub/mrf/ensure_re_prepended_test.exs
index 38ddec5bb..9a283f27d 100644
--- a/test/web/activity_pub/mrf/ensure_re_prepended_test.exs
+++ b/test/web/activity_pub/mrf/ensure_re_prepended_test.exs
@@ -1,82 +1,92 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.EnsureRePrependedTest do
use Pleroma.DataCase
alias Pleroma.Activity
alias Pleroma.Object
alias Pleroma.Web.ActivityPub.MRF.EnsureRePrepended
describe "rewrites summary" do
test "it adds `re:` to summary object when child summary and parent summary equal" do
message = %{
"type" => "Create",
"object" => %{
"summary" => "object-summary",
"inReplyTo" => %Activity{object: %Object{data: %{"summary" => "object-summary"}}}
}
}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res["object"]["summary"] == "re: object-summary"
end
test "it adds `re:` to summary object when child summary containts re-subject of parent summary " do
message = %{
"type" => "Create",
"object" => %{
"summary" => "object-summary",
"inReplyTo" => %Activity{object: %Object{data: %{"summary" => "re: object-summary"}}}
}
}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res["object"]["summary"] == "re: object-summary"
end
end
describe "skip filter" do
test "it skip if type isn't 'Create'" do
message = %{
"type" => "Annotation",
"object" => %{"summary" => "object-summary"}
}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res == message
end
test "it skip if summary is empty" do
message = %{
"type" => "Create",
"object" => %{
"inReplyTo" => %Activity{object: %Object{data: %{"summary" => "summary"}}}
}
}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res == message
end
test "it skip if inReplyTo is empty" do
message = %{"type" => "Create", "object" => %{"summary" => "summary"}}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res == message
end
test "it skip if parent and child summary isn't equal" do
message = %{
"type" => "Create",
"object" => %{
"summary" => "object-summary",
"inReplyTo" => %Activity{object: %Object{data: %{"summary" => "summary"}}}
}
}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res == message
end
+
+ test "it skips if the object is only a reference" do
+ message = %{
+ "type" => "Create",
+ "object" => "somereference"
+ }
+
+ assert {:ok, res} = EnsureRePrepended.filter(message)
+ assert res == message
+ end
end
end

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