defmodule Pleroma.Web.RichMedia.Parsers.MetaTagsParser do
def parse(html, data, prefix, error_message, key_name, value_name \\ "content") do
- with elements = [_ | _] <- get_elements(html, key_name, prefix),
- page_title = get_page_title(html),
- meta_data =
- Enum.reduce(elements, data, fn el, acc ->
- attributes = normalize_attributes(el, prefix, key_name, value_name)
-
- Map.merge(acc, attributes)
- end)
- |> Map.put_new(:title, page_title) do
- {:ok, meta_data}
+ meta_data =
+ html
+ |> get_elements(key_name, prefix)
+ |> Enum.reduce(data, fn el, acc ->
+ attributes = normalize_attributes(el, prefix, key_name, value_name)
+
+ Map.merge(acc, attributes)
+ end)
+ |> maybe_put_title(html)
+
+ if Enum.empty?(meta_data) do
+ {:error, error_message}
else
- _e -> {:error, error_message}
+ {:ok, meta_data}
end
end
%{String.to_atom(data[key_name]) => data[value_name]}
end
+ defp maybe_put_title(%{title: _} = meta, _), do: meta
+
+ defp maybe_put_title(meta, html) do
+ case get_page_title(html) do
+ "" -> meta
+ title -> Map.put_new(meta, :title, title)
+ end
+ end
+
defp get_page_title(html) do
Floki.find(html, "title") |> Floki.text()
end