Allow authoring MFM

config/config.exs

@@ -222,7 +222,8 @@ config :pleroma, :instance,
     "text/plain",
     "text/html",
     "text/markdown",
-    "text/bbcode"
+    "text/bbcode",
+    "text/x.misskeymarkdown"
   ],
   staff_transparency: [],
   autofollowed_nicknames: [],

lib/pleroma/emoji.ex

@@ -165,7 +165,7 @@ defmodule Pleroma.Emoji do
 
   def maybe_quote(name), do: name
 
-  def emoji_url(%{"type" => "EmojiReact", "content" => emoji, "tag" => []}), do: nil
+  def emoji_url(%{"type" => "EmojiReact", "content" => _, "tag" => []}), do: nil
 
   def emoji_url(%{"type" => "EmojiReact", "content" => emoji, "tag" => tags}) do
     tag =

lib/pleroma/web/common_api/activity_draft.ex

@@ -213,13 +213,14 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
       end
 
     emoji = Map.merge(emoji, summary_emoji)
-
     {:ok, note_data, _meta} = Builder.note(draft)
-
     object =
       note_data
       |> Map.put("emoji", emoji)
-      |> Map.put("source", draft.status)
+      |> Map.put("source", %{
+        "content" => draft.status,
+        "mediaType" => draft.params[:content_type]
+      })
       |> Map.put("generator", draft.params[:generator])
 
     %__MODULE__{draft | object: object}

lib/pleroma/web/common_api/utils.ex

@@ -291,6 +291,15 @@ defmodule Pleroma.Web.CommonAPI.Utils do
     |> Formatter.html_escape("text/html")
   end
 
+  def format_input(text, "text/x.misskeymarkdown", options) do
+    text
+    |> Formatter.html_escape("text/plain")
+    |> Formatter.linkify(options)
+    |> (fn {text, mentions, tags} ->
+          {String.replace(text, ~r/\r?\n/, "<br>"), mentions, tags}
+        end).()
+  end
+
   def format_naive_asctime(date) do
     date |> DateTime.from_naive!("Etc/UTC") |> format_asctime
   end