Allow custom emoji reactions: Fix tests, mixed custom and unicode reactions

lib/pleroma/emoji.ex

@@ -51,6 +51,15 @@ defmodule Pleroma.Emoji do
   @doc "Returns the path of the emoji `name`."
   @spec get(String.t()) :: String.t() | nil
   def get(name) do
+    name =
+      if String.starts_with?(name, ":") do
+        name
+        |> String.replace_leading(":", "")
+        |> String.replace_trailing(":", "")
+      else
+        name
+      end
+
     case :ets.lookup(@ets, name) do
       [{_, path}] -> path
       _ -> nil
@@ -139,6 +148,51 @@ defmodule Pleroma.Emoji do
 
   def is_unicode_emoji?(_), do: false
 
+  def stripped_name(name) when is_binary(name) do
+    name
+    |> String.replace_leading(":", "")
+    |> String.replace_trailing(":", "")
+  end
+
+  def stripped_name(name), do: name
+
+  def maybe_quote(name) when is_binary(name) do
+    if is_unicode_emoji?(name) do
+      name
+    else
+      if String.starts_with?(name, ":") do
+        name
+      else
+        ":#{name}:"
+      end
+    end
+  end
+
+  def maybe_quote(name), do: name
+
+  def emoji_url(%{"type" => "EmojiReact", "content" => _, "tag" => []}), do: nil
+
+  def emoji_url(%{"type" => "EmojiReact", "content" => emoji, "tag" => tags}) do
+    tag =
+      tags
+      |> Enum.find(fn tag -> tag["type"] == "Emoji" && tag["name"] == stripped_name(emoji) end)
+
+    if is_nil(tag) do
+      nil
+    else
+      tag
+      |> Map.get("icon")
+      |> Map.get("url")
+    end
+  end
+
+  def emoji_url(_), do: nil
+
+  def emoji_name_with_instance(name, url) do
+    url = url |> URI.parse() |> Map.get(:host)
+    "#{name}@#{url}"
+  end
+
   emoji_qualification_map =
     emojis
     |> Enum.filter(&String.contains?(&1, "\uFE0F"))

lib/pleroma/web/activity_pub/builder.ex

@@ -90,8 +90,10 @@ defmodule Pleroma.Web.ActivityPub.Builder do
       Enum.find(
         existing_reactions,
         fn [name, _, url] ->
-          url = URI.parse(url)
-          url.host == instance && name == emoji_code
+          if url != nil do
+            url = URI.parse(url)
+            url.host == instance && name == emoji_code
+          end
         end
       )
 

lib/pleroma/web/activity_pub/object_validators/common_fields.ex

@@ -58,10 +58,17 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonFields do
       field(:like_count, :integer, default: 0)
       field(:announcement_count, :integer, default: 0)
       field(:inReplyTo, ObjectValidators.ObjectID)
+      field(:quoteUri, ObjectValidators.ObjectID)
       field(:url, ObjectValidators.Uri)
 
       field(:likes, {:array, ObjectValidators.ObjectID}, default: [])
       field(:announcements, {:array, ObjectValidators.ObjectID}, default: [])
     end
   end
+
+  defmacro tag_fields do
+    quote bind_quoted: binding() do
+      embeds_many(:tag, TagValidator)
+    end
+  end
 end

lib/pleroma/web/mastodon_api/views/notification_view.ex

@@ -14,6 +14,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
   alias Pleroma.Web.AdminAPI.Report
   alias Pleroma.Web.AdminAPI.ReportView
   alias Pleroma.Web.CommonAPI
+  alias Pleroma.Web.MediaProxy
   alias Pleroma.Web.MastodonAPI.AccountView
   alias Pleroma.Web.MastodonAPI.NotificationView
   alias Pleroma.Web.MastodonAPI.StatusView
@@ -145,7 +146,9 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
   end
 
   defp put_emoji(response, activity) do
-    Map.put(response, :emoji, activity.data["content"])
+    response
+    |> Map.put(:emoji, activity.data["content"])
+    |> Map.put(:emoji_url, MediaProxy.url(Pleroma.Emoji.emoji_url(activity.data)))
   end
 
   defp put_chat_message(response, activity, reading_user, opts) do