mobilizon/lib/web/views/page_view.ex

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Elixir
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defmodule Mobilizon.Web.PageView do
@moduledoc """
View for our webapp
"""
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use Mobilizon.Web, :view
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alias Mobilizon.Actors.Actor
alias Mobilizon.Conversations.Comment
alias Mobilizon.Events.Event
alias Mobilizon.Resources.Resource
alias Mobilizon.Tombstone
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alias Mobilizon.Service.Metadata
alias Mobilizon.Service.Metadata.Instance
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alias Mobilizon.Service.Metadata.Utils, as: MetadataUtils
alias Mobilizon.Federation.ActivityPub.Utils
alias Mobilizon.Federation.ActivityStream.Convertible
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def render("actor.activity-json", %{conn: %{assigns: %{object: %Actor{} = actor}}}) do
actor
|> Convertible.model_to_as()
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|> Map.merge(Utils.make_json_ld_header())
end
def render("event.activity-json", %{conn: %{assigns: %{object: %Event{} = event}}}) do
event
|> Convertible.model_to_as()
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|> Map.merge(Utils.make_json_ld_header())
end
def render("event.activity-json", %{conn: %{assigns: %{object: %Tombstone{} = event}}}) do
event
|> Convertible.model_to_as()
|> Map.merge(Utils.make_json_ld_header())
end
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def render("comment.activity-json", %{conn: %{assigns: %{object: %Comment{} = comment}}}) do
comment
|> Convertible.model_to_as()
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|> Map.merge(Utils.make_json_ld_header())
end
def render("resource.activity-json", %{conn: %{assigns: %{object: %Resource{} = resource}}}) do
resource
|> Convertible.model_to_as()
|> Map.merge(Utils.make_json_ld_header())
end
def render(page, %{object: object, conn: conn} = _assigns)
when page in ["actor.html", "event.html", "comment.html"] do
tags = object |> Metadata.build_tags()
inject_tags(conn, tags)
end
def render("index.html", %{conn: conn}) do
tags = Instance.build_tags()
inject_tags(conn, tags)
end
@spec inject_tags(Conn.t(), List.t()) :: {:safe, String.t()}
def inject_tags(conn, tags) do
with {:ok, index_content} <- File.read(index_file_path()) do
locale = get_locale(conn)
do_replacements(index_content, MetadataUtils.stringify_tags(tags), locale)
end
end
@spec index_file_path :: String.t()
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defp index_file_path do
Path.join(Application.app_dir(:mobilizon, "priv/static"), "index.html")
end
@spec replace_meta(String.t(), String.t()) :: String.t()
# TODO: Find why it's different in dev/prod and during tests
defp replace_meta(index_content, tags) do
index_content
|> String.replace("<meta name=\"server-injected-data\" />", tags)
|> String.replace("<meta name=server-injected-data>", tags)
end
@spec do_replacements(String.t(), String.t(), String.t()) :: {:safe, String.t()}
defp do_replacements(index_content, tags, locale) do
index_content
|> replace_meta(tags)
|> String.replace("<html lang=\"en\">", "<html lang=\"#{locale}\">")
|> String.replace("<html lang=en>", "<html lang=\"#{locale}\">")
|> (&{:safe, &1}).()
end
@spec get_locale(Conn.t()) :: String.t()
defp get_locale(%{private: %{cldr_locale: nil}}), do: "en"
defp get_locale(%{private: %{cldr_locale: %{requested_locale_name: locale}}}), do: locale
defp get_locale(_), do: "en"
end