69 lines
2.2 KiB
Elixir
69 lines
2.2 KiB
Elixir
defmodule Mobilizon.Web.Views.Utils do
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@moduledoc """
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Utils for views
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"""
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alias Mobilizon.Service.Metadata.Utils, as: MetadataUtils
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import Mobilizon.Web.Gettext, only: [dgettext: 2]
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import Plug.Conn, only: [put_status: 2, halt: 1]
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# sobelow_skip ["Traversal.FileModule"]
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@spec inject_tags(Enum.t(), String.t()) :: {:ok, {:safe, String.t()}} | {:error, atom()}
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def inject_tags(tags, locale \\ "en") do
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with path <- Path.join(Application.app_dir(:mobilizon, "priv/static"), "index.html"),
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{:exists, true} <- {:exists, File.exists?(path)},
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{:ok, index_content} <- File.read(path),
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safe <- do_replacements(index_content, MetadataUtils.stringify_tags(tags), locale) do
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{:ok, {:safe, safe}}
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else
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{:exists, false} -> {:error, :index_not_found}
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{:error, error} when is_atom(error) -> {:error, error}
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end
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end
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@spec return_error(Plug.Conn.t(), atom()) :: Plug.Conn.t()
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def return_error(conn, error) do
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conn
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|> put_status(500)
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|> Phoenix.Controller.put_view(Mobilizon.Web.ErrorView)
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|> Phoenix.Controller.render("500.html", %{details: details(error)})
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|> halt()
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end
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defp details(:index_not_found) do
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[dgettext("errors", "Index file not found. You need to recompile the front-end.")]
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end
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defp details(_) do
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[]
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end
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@spec replace_meta(String.t(), String.t()) :: String.t()
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defp replace_meta(index_content, tags) do
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index_content
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|> String.replace("<meta name=\"server-injected-data\"/>", tags)
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|> String.replace("<meta name=\"server-injected-data\" />", tags)
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end
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@spec do_replacements(String.t(), String.t(), String.t()) :: String.t()
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defp do_replacements(index_content, tags, locale) do
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index_content
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|> replace_meta(tags)
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|> String.replace(
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~s(<html lang="en" dir="auto">),
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~s(<html lang="#{locale}" dir="#{get_language_direction(locale)}">)
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)
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end
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@spec get_locale(Plug.Conn.t()) :: String.t()
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def get_locale(%Plug.Conn{assigns: assigns}) do
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Map.get(assigns, :locale)
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end
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@ltr_languages ["ar", "ae", "he", "fa", "ku", "ur"]
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@spec get_language_direction(String.t()) :: String.t()
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defp get_language_direction(locale) when locale in @ltr_languages, do: "rtl"
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defp get_language_direction(_locale), do: "ltr"
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end
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