Drop HTMLSanitizeEx and fix title sanitizing

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/service/metadata/event.ex

@@ -2,6 +2,7 @@ defimpl Mobilizon.Service.Metadata, for: Mobilizon.Events.Event do
   alias Phoenix.HTML
   alias Phoenix.HTML.Tag
   alias Mobilizon.Events.Event
+  alias Mobilizon.Service.Formatter.HTML, as: HTMLFormatter
   alias Mobilizon.Web.JsonLD.ObjectView
   alias Mobilizon.Web.MediaProxy
   import Mobilizon.Web.Gettext
@@ -49,15 +50,15 @@ defimpl Mobilizon.Service.Metadata, for: Mobilizon.Events.Event do
 
   defp process_description(description, _locale) do
     description
-    |> HtmlSanitizeEx.strip_tags()
+    |> HTMLFormatter.strip_tags()
     |> String.slice(0..200)
     |> (&"#{&1}…").()
   end
 
   # Insert JSON-LD schema by hand because Tag.content_tag wants to escape it
-  defp json(%Event{} = event) do
+  defp json(%Event{title: title} = event) do
     "event.json"
-    |> ObjectView.render(%{event: event})
+    |> ObjectView.render(%{event: %{event | title: HTMLFormatter.strip_tags(title)}})
     |> Jason.encode!()
   end
 end

lib/service/metadata/instance.ex

@@ -7,6 +7,7 @@ defmodule Mobilizon.Service.Metadata.Instance do
   alias Phoenix.HTML.Tag
 
   alias Mobilizon.Config
+  alias Mobilizon.Service.Formatter.HTML, as: HTMLFormatter
   alias Mobilizon.Web.Endpoint
 
   def build_tags do
@@ -40,7 +41,7 @@ defmodule Mobilizon.Service.Metadata.Instance do
 
   defp process_description(description) do
     description
-    |> HtmlSanitizeEx.strip_tags()
+    |> HTMLFormatter.strip_tags()
     |> String.slice(0..200)
     |> (&"#{&1}…").()
   end