-
- def get_cached_favicon(instance_url) when is_binary(instance_url) do
- Cachex.fetch!(:instances_cache, instance_url, fn _ -> get_favicon(instance_url) end)
- end
-
- def get_cached_favicon(_instance_url) do
- nil
- end
-
- def get_favicon(instance_url) when is_binary(instance_url) do
- try do
- with {:ok, %Tesla.Env{body: html}} <-
- Pleroma.HTTP.get(instance_url, [{:Accept, "text/html"}]),
- favicon_rel <-
- html
- |> Floki.parse_document!()
- |> Floki.attribute("link[rel=icon]", "href")
- |> List.first(),
- favicon_url <- URI.merge(URI.parse(instance_url), favicon_rel) |> to_string(),
- true <- is_binary(favicon_url) do
- favicon_url
- else
- _ -> nil
- end
- rescue
- _ -> nil
- end
- end