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