Introduce support for 3rd-party auth (OAuth2 & LDAP)

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

lib/web/views/auth_view.ex

@@ -0,0 +1,29 @@
+defmodule Mobilizon.Web.AuthView do
+  @moduledoc """
+  View for the auth routes
+  """
+
+  use Mobilizon.Web, :view
+  alias Mobilizon.Service.Metadata.Instance
+  alias Phoenix.HTML.Tag
+  import Mobilizon.Web.Views.Utils
+
+  def render("callback.html", %{
+        conn: conn,
+        access_token: access_token,
+        refresh_token: refresh_token,
+        user: %{id: user_id, email: user_email, role: user_role, default_actor_id: user_actor_id}
+      }) do
+    info_tags = [
+      Tag.tag(:meta, name: "auth-access-token", content: access_token),
+      Tag.tag(:meta, name: "auth-refresh-token", content: refresh_token),
+      Tag.tag(:meta, name: "auth-user-id", content: user_id),
+      Tag.tag(:meta, name: "auth-user-email", content: user_email),
+      Tag.tag(:meta, name: "auth-user-role", content: user_role),
+      Tag.tag(:meta, name: "auth-user-actor-id", content: user_actor_id)
+    ]
+
+    tags = Instance.build_tags() ++ info_tags
+    inject_tags(tags, get_locale(conn))
+  end
+end