add support for bbcode

config/config.exs

@@ -221,7 +221,8 @@ config :pleroma, :instance,
   allowed_post_formats: [
     "text/plain",
     "text/html",
-    "text/markdown"
+    "text/markdown",
+    "text/bbcode"
   ],
   mrf_transparency: true,
   autofollowed_nicknames: [],

lib/pleroma/web/common_api/utils.ex

@@ -183,6 +183,18 @@ defmodule Pleroma.Web.CommonAPI.Utils do
   end
 
   @doc """
+  Formatting text as BBCode.
+  """
+  def format_input(text, "text/bbcode", options) do
+    text
+    |> String.replace(~r/\r/, "")
+    |> Formatter.html_escape("text/plain")
+    |> BBCode.to_html()
+    |> (fn {:ok, html} -> html end).()
+    |> Formatter.linkify(options)
+  end
+
+  @doc """
   Formatting text to html.
   """
   def format_input(text, "text/html", options) do

test/web/common_api/common_api_utils_test.exs

@@ -119,6 +119,22 @@ defmodule Pleroma.Web.CommonAPI.UtilsTest do
       assert output == expected
     end
 
+    test "works for bare text/bbcode" do
+      text = "[b]hello world[/b]"
+      expected = "<strong>hello world</strong>"
+
+      {output, [], []} = Utils.format_input(text, "text/bbcode")
+
+      assert output == expected
+
+      text = "[b]hello world![/b]\n\nsecond paragraph!"
+      expected = "<strong>hello world!</strong><br><br>second paragraph!"
+
+      {output, [], []} = Utils.format_input(text, "text/bbcode")
+
+      assert output == expected
+    end
+
     test "works for text/markdown with mentions" do
       {:ok, user} =
         UserBuilder.insert(%{nickname: "user__test", ap_id: "http://foo.com/user__test"})