# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.StealEmojiPolicy do
alias Pleroma.Config
@moduledoc "Detect new emojis by their shortcode and steals them"
- @behaviour Pleroma.Web.ActivityPub.MRF
+ @behaviour Pleroma.Web.ActivityPub.MRF.Policy
defp accept_host?(host), do: host in Config.get([:mrf_steal_emoji, :hosts], [])
+ defp shortcode_matches?(shortcode, pattern) when is_binary(pattern) do
+ shortcode == pattern
+ end
+
+ defp shortcode_matches?(shortcode, pattern) do
+ String.match?(shortcode, pattern)
+ end
+
defp steal_emoji({shortcode, url}, emoji_dir_path) do
url = Pleroma.Web.MediaProxy.url(url)
end
else
Logger.debug(
- "MRF.StealEmojiPolicy: :#{shortcode}: at #{url} (#{byte_size(response.body)} B) over size limit (#{
- size_limit
- } B)"
+ "MRF.StealEmojiPolicy: :#{shortcode}: at #{url} (#{byte_size(response.body)} B) over size limit (#{size_limit} B)"
)
nil
Path.join(Config.get([:instance, :static_dir]), "emoji/stolen")
)
- if not Config.get([:mrf_steal_emoji, :dir_exists?], false) do
- create_dir(emoji_dir_path)
- end
+ File.mkdir_p(emoji_dir_path)
new_emojis =
foreign_emojis
reject_emoji? =
[:mrf_steal_emoji, :rejected_shortcodes]
|> Config.get([])
- |> Enum.find(false, fn regex -> String.match?(shortcode, regex) end)
+ |> Enum.find(false, fn pattern -> shortcode_matches?(shortcode, pattern) end)
!reject_emoji?
end)
def filter(message), do: {:ok, message}
@impl true
- def describe do
- {:ok, %{}}
+ @spec config_description :: %{
+ children: [
+ %{
+ description: <<_::272, _::_*256>>,
+ key: :hosts | :rejected_shortcodes | :size_limit,
+ suggestions: [any(), ...],
+ type: {:list, :string} | {:list, :string} | :integer
+ },
+ ...
+ ],
+ description: <<_::448>>,
+ key: :mrf_steal_emoji,
+ label: <<_::80>>,
+ related_policy: <<_::352>>
+ }
+ def config_description do
+ %{
+ key: :mrf_steal_emoji,
+ related_policy: "Pleroma.Web.ActivityPub.MRF.StealEmojiPolicy",
+ label: "MRF Emojis",
+ description: "Steals emojis from selected instances when it sees them.",
+ children: [
+ %{
+ key: :hosts,
+ type: {:list, :string},
+ description: "List of hosts to steal emojis from",
+ suggestions: [""]
+ },
+ %{
+ key: :rejected_shortcodes,
+ type: {:list, :string},
+ description: """
+ A list of patterns or matches to reject shortcodes with.
+
+ Each pattern can be a string or [Regex](https://hexdocs.pm/elixir/Regex.html) in the format of `~r/PATTERN/`.
+ """,
+ suggestions: ["foo", ~r/foo/]
+ },
+ %{
+ key: :size_limit,
+ type: :integer,
+ description: "File size limit (in bytes), checked before an emoji is saved to the disk",
+ suggestions: ["100000"]
+ }
+ ]
+ }
end
- defp create_dir(path) do
- if not File.exists?(path) do
- File.mkdir_p!(path)
- end
-
- Config.put([:mrf_steal_emoji, :dir_exists?], true)
+ @impl true
+ def describe do
+ {:ok, %{}}
end
end