Allow providing avatar/header descriptions

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

lib/pleroma/user.ex

@@ -589,13 +589,21 @@ defmodule Pleroma.User do
     |> put_fields()
     |> put_emoji()
     |> put_change_if_present(:bio, &{:ok, parse_bio(&1, struct)})
-    |> put_change_if_present(:avatar, &put_upload(&1, :avatar))
+    |> put_change_if_present(
-    |> put_change_if_present(:banner, &put_upload(&1, :banner))
+      :avatar,
+      &put_upload(&1, :avatar, Map.get(params, :avatar_description, nil))
+    )
+    |> put_change_if_present(
+      :banner,
+      &put_upload(&1, :banner, Map.get(params, :header_description, nil))
+    )
     |> put_change_if_present(:background, &put_upload(&1, :background))
     |> put_change_if_present(
       :pleroma_settings_store,
       &{:ok, Map.merge(struct.pleroma_settings_store, &1)}
     )
+    |> maybe_update_image_description(:avatar, Map.get(params, :avatar_description))
+    |> maybe_update_image_description(:banner, Map.get(params, :header_description))
     |> validate_fields(false)
   end
 
@@ -674,13 +682,25 @@ defmodule Pleroma.User do
     end
   end
 
-  defp put_upload(value, type) do
+  defp put_upload(value, type, description \\ nil) do
     with %Plug.Upload{} <- value,
-         {:ok, object} <- ActivityPub.upload(value, type: type) do
+         {:ok, object} <- ActivityPub.upload(value, type: type, description: description) do
       {:ok, object.data}
     end
   end
 
+  defp maybe_update_image_description(changeset, image_field, description) do
+    with {:image_missing, true} <- {:image_missing, not changed?(changeset, image_field)},
+         {:existing_image, %{"id" => id}} <-
+           {:existing_image, Map.get(changeset.data, image_field)},
+         {:object, %Object{} = object} <- {:object, Object.get_by_ap_id(id)},
+         {:ok, object} <- Object.update_data(object, %{"name" => description}) do
+      put_change(changeset, image_field, object.data)
+    else
+      e -> changeset
+    end
+  end
+
   def update_as_admin_changeset(struct, params) do
     struct
     |> update_changeset(params)

lib/pleroma/web/api_spec/operations/account_operation.ex

@@ -813,6 +813,16 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
           allOf: [BooleanLike],
           nullable: true,
           description: "User's birthday will be visible"
+        },
+        avatar_description: %Schema{
+          type: :string,
+          nullable: true,
+          description: "Avatar image description."
+        },
+        header_description: %Schema{
+          type: :string,
+          nullable: true,
+          description: "Header image description."
         }
       },
       example: %{

lib/pleroma/web/mastodon_api/controllers/account_controller.ex

@@ -232,6 +232,8 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
       |> Maps.put_if_present(:is_discoverable, params[:discoverable])
       |> Maps.put_if_present(:birthday, params[:birthday])
       |> Maps.put_if_present(:language, Pleroma.Web.Gettext.normalize_locale(params[:language]))
+      |> Maps.put_if_present(:avatar_description, params[:avatar_description])
+      |> Maps.put_if_present(:header_description, params[:header_description])
 
     # What happens here:
     #

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

@@ -220,8 +220,10 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
 
     avatar = User.avatar_url(user) |> MediaProxy.url()
     avatar_static = User.avatar_url(user) |> MediaProxy.preview_url(static: true)
+    avatar_description = image_description(user.avatar)
     header = User.banner_url(user) |> MediaProxy.url()
     header_static = User.banner_url(user) |> MediaProxy.preview_url(static: true)
+    header_description = image_description(user.banner)
 
     following_count =
       if !user.hide_follows_count or !user.hide_follows or self,
@@ -323,7 +325,9 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
         background_image: image_url(user.background) |> MediaProxy.url(),
         accepts_chat_messages: user.accepts_chat_messages,
         favicon: favicon
-      }
+      },
+      avatar_description: avatar_description,
+      header_description: header_description
     }
     |> maybe_put_role(user, opts[:for])
     |> maybe_put_settings(user, opts[:for], opts)
@@ -346,6 +350,10 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
 
   defp username_from_nickname(_), do: nil
 
+  defp image_description(%{"name" => name}), do: name
+
+  defp image_description(_), do: ""
+
   defp maybe_put_follow_requests_count(
          data,
          %User{id: user_id} = user,