Remove finmoji and add a way to download emojis in packs

These packs are stored in a git repo on pleroma gitlab

config/config.exs

@@ -100,8 +100,8 @@
   shortcode_globs: ["/emoji/custom/**/*.png"],
   groups: [
     # Put groups that have higher priority than defaults here. Example in `docs/config/custom_emoji.md`
-    Finmoji: "/finmoji/128px/*-128.png",
+    Finmoji: ["/finmoji/128px/*-128.png", "/instance/static/emoji/finmoji/128px/*-128.png"],
-    Custom: ["/emoji/*.png", "/emoji/custom/*.png"]
+    Custom: ["/emoji/*.png", "/emoji/custom/*.png", "/instance/static/emoji/**/*.png"]
   ]
 
 config :pleroma, :uri_schemes,

lib/mix/tasks/pleroma/emoji.ex

@@ -0,0 +1,98 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Mix.Tasks.Pleroma.Emoji do
+  use Mix.Task
+
+  @shortdoc "Manages Pleroma instance"
+  @moduledoc """
+  """
+
+  defp fetch_manifest do
+    Tesla.get!("https://git.pleroma.social/vaartis/emoji-index/raw/master/index.json").body
+    |> Poison.decode!()
+  end
+
+  def run(["ls-packs"]) do
+    Application.ensure_all_started(:hackney)
+
+    manifest = fetch_manifest()
+
+    Enum.each(manifest, fn {name, info} ->
+      to_print = [
+        {"Name", name},
+        {"Homepage", info["homepage"]},
+        {"Description", info["description"]},
+        {"License", info["license"]},
+        {"Source", info["src"]}
+      ]
+
+      for {param, value} <- to_print do
+        IO.puts(IO.ANSI.format([:bright, param, :normal, ": ", value]))
+      end
+    end)
+  end
+
+  def run(["get-pack", pack_name]) do
+    Application.ensure_all_started(:hackney)
+
+    manifest = fetch_manifest()
+
+    if Map.has_key?(manifest, pack_name) do
+      pack = manifest[pack_name]
+      src_url = pack["src"]
+
+      IO.puts(
+        IO.ANSI.format([
+          "Downloading pack ",
+          :bright,
+          pack_name,
+          :normal,
+          " from ",
+          :underline,
+          src_url
+        ])
+      )
+
+      binary_archive = Tesla.get!(src_url).body
+
+      IO.puts("Unpacking #{pack_name} pack")
+
+      static_path = Path.join(:code.priv_dir(:pleroma), "static")
+
+      pack_path =
+        Path.join([
+          static_path,
+          Pleroma.Config.get!([:instance, :static_dir]),
+          "emoji",
+          pack_name
+        ])
+
+      files_to_unzip =
+        Enum.map(
+          pack["files"],
+          fn {_, f} -> to_charlist(f) end
+        )
+
+      {:ok, _} =
+        :zip.unzip(binary_archive,
+          cwd: pack_path,
+          file_list: files_to_unzip
+        )
+
+      IO.puts("Wriring emoji.txt for the #{pack_name} pack")
+
+      emoji_txt_str =
+        Enum.map(
+          pack["files"],
+          fn {shortcode, path} -> "#{shortcode}, /instance/static/emoji/#{pack_name}/#{path}" end
+        )
+        |> Enum.join("\n")
+
+      File.write!(Path.join(pack_path, "emoji.txt"), emoji_txt_str)
+    else
+      IO.puts(IO.ANSI.format([:bright, :red, "No pack named \"#{pack_name}\" found"]))
+    end
+  end
+end

lib/pleroma/emoji.ex

@@ -14,6 +14,8 @@ defmodule Pleroma.Emoji do
   """
   use GenServer
 
+  require Logger
+
   @type pattern :: Regex.t() | module() | String.t()
   @type patterns :: pattern() | [pattern()]
   @type group_patterns :: keyword(patterns())
@@ -79,96 +81,50 @@ def code_change(_old_vsn, state, _extra) do
   end
 
   defp load do
-    finmoji_enabled = Keyword.get(Application.get_env(:pleroma, :instance), :finmoji_enabled)
+    static_path = Path.join(:code.priv_dir(:pleroma), "static")
+
+    emoji_dir_path =
+      Path.join([
+        static_path,
+        Pleroma.Config.get!([:instance, :static_dir]),
+        "emoji"
+      ])
+
+    case File.ls(emoji_dir_path) do
+      {:error, :enoent} ->
+        # The custom emoji directory doesn't exist,
+        # don't do anything
+        nil
+
+      {:error, e} ->
+        # There was some other error
+        Logger.error("Could not access the custom emoji directory #{emoji_dir_path}: #{e}")
+
+      {:ok, packs} ->
+        # Print the packs we've found
+        Logger.info("Found emoji packs: #{Enum.join(packs, ", ")}")
+
+        # compat thing for old custom emoji handling
         shortcode_globs = Application.get_env(:pleroma, :emoji)[:shortcode_globs] || []
 
         emojis =
-      (load_finmoji(finmoji_enabled) ++
+          # Add the things fro
+          # Deprecated?
+          (Enum.flat_map(
+             packs,
+             fn pack -> load_from_file(Path.join([emoji_dir_path, pack, "emoji.txt"])) end
+           ) ++
              load_from_file("config/emoji.txt") ++
              load_from_file("config/custom_emoji.txt") ++
              load_from_globs(shortcode_globs))
           |> Enum.reject(fn value -> value == nil end)
 
         true = :ets.insert(@ets, emojis)
+    end
+
     :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 ->
-      file_name = "/finmoji/128px/#{finmoji}-128.png"
-      group = match_extra(@groups, file_name)
-      {finmoji, file_name, to_string(group)}
-    end)
-  end
-
-  defp load_finmoji(_), do: []
-
   defp load_from_file(file) do
     if File.exists?(file) do
       load_from_file_stream(File.stream!(file))