From 41e4752950079b80e3d5a06d9806686bd3216dff Mon Sep 17 00:00:00 2001
From: rinpatch <rinpatch@sdf.org>
Date: Wed, 26 Jun 2019 06:48:59 +0300
Subject: [PATCH] Make default pack extensions configurable and default to png
 and gif

---
 CHANGELOG.md         | 1 +
 config/config.exs    | 1 +
 docs/config.md       | 1 +
 lib/pleroma/emoji.ex | 6 ++++--
 4 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d3c554245..439ad45d1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,6 +26,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Federation: Support for `Question` and `Answer` objects
 - Federation: Support for reports
 - Configuration: `poll_limits` option
+- Configuration: `pack_extensions` option
 - Configuration: `safe_dm_mentions` option
 - Configuration: `link_name` option
 - Configuration: `fetch_initial_posts` option
diff --git a/config/config.exs b/config/config.exs
index 0d07fc692..f7019b382 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -99,6 +99,7 @@ config :pleroma, Pleroma.Uploaders.MDII,
 
 config :pleroma, :emoji,
   shortcode_globs: ["/emoji/custom/**/*.png"],
+  pack_extensions: [".png", ".gif"],
   groups: [
     # Put groups that have higher priority than defaults here. Example in `docs/config/custom_emoji.md`
     Custom: ["/emoji/*.png", "/emoji/**/*.png"]
diff --git a/docs/config.md b/docs/config.md
index b08c37e84..836c9f934 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -604,6 +604,7 @@ Configure OAuth 2 provider capabilities:
 
 ## :emoji
 * `shortcode_globs`: Location of custom emoji files. `*` can be used as a wildcard. Example `["/emoji/custom/**/*.png"]`
+* `pack_extensions`: A list of file extensions for emojis, when no emoji.txt for a pack is present. Example `[".png", ".gif"]`
 * `groups`: Emojis are ordered in groups (tags). This is an array of key-value pairs where the key is the groupname and the value the location or array of locations. `*` can be used as a wildcard. Example `[Custom: ["/emoji/*.png", "/emoji/custom/*.png"]]`
 * `default_manifest`: Location of the JSON-manifest. This manifest contains information about the emoji-packs you can download. Currently only one manifest can be added (no arrays).
 
diff --git a/lib/pleroma/emoji.ex b/lib/pleroma/emoji.ex
index 854d46b1a..052501642 100644
--- a/lib/pleroma/emoji.ex
+++ b/lib/pleroma/emoji.ex
@@ -148,11 +148,13 @@ defmodule Pleroma.Emoji do
     if File.exists?(emoji_txt) do
       load_from_file(emoji_txt, emoji_groups)
     else
+      extensions = Pleroma.Config.get([:emoji, :pack_extensions])
+
       Logger.info(
-        "No emoji.txt found for pack \"#{pack_name}\", assuming all .png files are emoji"
+        "No emoji.txt found for pack \"#{pack_name}\", assuming all #{Enum.join(extensions, ", ")} files are emoji"
       )
 
-      make_shortcode_to_file_map(pack_dir, [".png"])
+      make_shortcode_to_file_map(pack_dir, extensions)
       |> Enum.map(fn {shortcode, rel_file} ->
         filename = Path.join("/emoji/#{pack_name}", rel_file)