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# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Emoji do
@moduledoc """
The emojis are loaded from:
* the built-in Finmojis (if enabled in configuration),
* the files: `config/emoji.txt` and `config/custom_emoji.txt`
* glob paths
This GenServer stores in an ETS table the list of the loaded emojis, and also allows to reload the list at runtime.
"""
use GenServer
@ets __MODULE__.Ets
@ets_options [:ordered_set, :protected, :named_table, {:read_concurrency, true}]
@doc false
def start_link() do
GenServer.start_link(__MODULE__, [], name: __MODULE__)
end
@doc "Reloads the emojis from disk."
@spec reload() :: :ok
def reload() do
GenServer.call(__MODULE__, :reload)
end
@doc "Returns the path of the emoji `name`."
@spec get(String.t()) :: String.t() | nil
def get(name) do
case :ets.lookup(@ets, name) do
[{_, path}] -> path
_ -> nil
end
end
@doc "Returns all the emojos!!"
@spec get_all() :: [{String.t(), String.t()}, ...]
def get_all() do
:ets.tab2list(@ets)
end
@doc false
def init(_) do
@ets = :ets.new(@ets, @ets_options)
GenServer.cast(self(), :reload)
{:ok, nil}
end
@doc false
def handle_cast(:reload, state) do
load()
{:noreply, state}
end
@doc false
def handle_call(:reload, _from, state) do
load()
{:reply, :ok, state}
end
@doc false
def terminate(_, _) do
:ok
end
@doc false
def code_change(_old_vsn, state, _extra) do
load()
{:ok, state}
end
defp load() do
emojis =
(load_finmoji(Keyword.get(Application.get_env(:pleroma, :instance), :finmoji_enabled)) ++
load_from_file("config/emoji.txt") ++
load_from_file("config/custom_emoji.txt") ++
load_from_globs(
Keyword.get(Application.get_env(:pleroma, :emoji, []), :shortcode_globs, [])
))
|> Enum.reject(fn value -> value == nil end)
true = :ets.insert(@ets, emojis)
:ok
end
@finmoji [
"a_trusted_friend",
"alandislands",
"association",
"auroraborealis",
"baby_in_a_box",
"bear",
"black_gold",
"christmasparty",
"crosscountryskiing",
"cupofcoffee",
"education",
"fashionista_finns",
"finnishlove",
"flag",
"forest",
"four_seasons_of_bbq",
"girlpower",
"handshake",
"happiness",
"headbanger",
"icebreaker",
"iceman",
"joulutorttu",
"kaamos",
"kalsarikannit_f",
"kalsarikannit_m",
"karjalanpiirakka",
"kicksled",
"kokko",
"lavatanssit",
"losthopes_f",
"losthopes_m",
"mattinykanen",
"meanwhileinfinland",
"moominmamma",
"nordicfamily",
"out_of_office",
"peacemaker",
"perkele",
"pesapallo",
"polarbear",
"pusa_hispida_saimensis",
"reindeer",
"sami",
"sauna_f",
"sauna_m",
"sauna_whisk",
"sisu",
"stuck",
"suomimainittu",
"superfood",
"swan",
"the_cap",
"the_conductor",
"the_king",
"the_voice",
"theoriginalsanta",
"tomoffinland",
"torillatavataan",
"unbreakable",
"waiting",
"white_nights",
"woollysocks"
]
defp load_finmoji(true) do
Enum.map(@finmoji, fn finmoji ->
{finmoji, "/finmoji/128px/#{finmoji}-128.png"}
end)
end
defp load_finmoji(_), do: []
defp load_from_file(file) do
if File.exists?(file) do
load_from_file_stream(File.stream!(file))
else
[]
end
end
defp load_from_file_stream(stream) do
stream
|> Stream.map(&String.trim/1)
|> Stream.map(fn line ->
case String.split(line, ~r/,\s*/) do
[name, file] -> {name, file}
_ -> nil
end
end)
|> Enum.to_list()
end
defp load_from_globs(globs) do
static_path = Path.join(:code.priv_dir(:pleroma), "static")
paths =
Enum.map(globs, fn glob ->
Path.join(static_path, glob)
|> Path.wildcard()
end)
|> Enum.concat()
Enum.map(paths, fn path ->
shortcode = Path.basename(path, Path.extname(path))
external_path = Path.join("/", Path.relative_to(path, static_path))
{shortcode, external_path}
end)
end
end
|
