Add SetLocalePlug

This commit is contained in:
Egor Kislitsyn 2019-07-09 18:30:15 +07:00
parent 42422f3ff2
commit 0d54a571ca
3 changed files with 114 additions and 5 deletions

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@ -0,0 +1,63 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
# NOTE: this module is based on https://github.com/smeevil/set_locale
defmodule Pleroma.Plugs.SetLocalePlug do
import Plug.Conn, only: [get_req_header: 2, assign: 3]
def init(_), do: nil
def call(conn, _) do
locale = get_locale_from_header(conn) || Gettext.get_locale()
Gettext.put_locale(locale)
assign(conn, :locale, locale)
end
defp get_locale_from_header(conn) do
conn
|> extract_accept_language()
|> Enum.find(&supported_locale?/1)
end
defp extract_accept_language(conn) do
case get_req_header(conn, "accept-language") do
[value | _] ->
value
|> String.split(",")
|> Enum.map(&parse_language_option/1)
|> Enum.sort(&(&1.quality > &2.quality))
|> Enum.map(& &1.tag)
|> Enum.reject(&is_nil/1)
|> ensure_language_fallbacks()
_ ->
[]
end
end
defp supported_locale?(locale) do
Pleroma.Web.Gettext
|> Gettext.known_locales()
|> Enum.member?(locale)
end
defp parse_language_option(string) do
captures = Regex.named_captures(~r/^\s?(?<tag>[\w\-]+)(?:;q=(?<quality>[\d\.]+))?$/i, string)
quality =
case Float.parse(captures["quality"] || "1.0") do
{val, _} -> val
:error -> 1.0
end
%{tag: captures["tag"], quality: quality}
end
defp ensure_language_fallbacks(tags) do
Enum.flat_map(tags, fn tag ->
[language | _] = String.split(tag, "-")
if Enum.member?(tags, language), do: [tag], else: [tag, language]
end)
end
end

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@ -7,13 +7,9 @@ defmodule Pleroma.Web.Endpoint do
socket("/socket", Pleroma.Web.UserSocket)
# Serve at "/" the static files from "priv/static" directory.
#
# You should set gzip to true if you are running phoenix.digest
# when deploying your static files in production.
plug(Pleroma.Plugs.SetLocalePlug)
plug(CORSPlug)
plug(Pleroma.Plugs.HTTPSecurityPlug)
plug(Pleroma.Plugs.UploadedMedia)
@static_cache_control "public, no-cache"
@ -30,6 +26,10 @@ defmodule Pleroma.Web.Endpoint do
}
)
# Serve at "/" the static files from "priv/static" directory.
#
# You should set gzip to true if you are running phoenix.digest
# when deploying your static files in production.
plug(
Plug.Static,
at: "/",

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@ -0,0 +1,46 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Plugs.SetLocalePlugTest do
use ExUnit.Case, async: true
use Plug.Test
alias Plug.Conn
alias Pleroma.Plugs.SetLocalePlug
test "default locale is `en`" do
conn =
:get
|> conn("/cofe")
|> SetLocalePlug.call([])
assert "en" == Gettext.get_locale()
assert %{locale: "en"} == conn.assigns
end
test "use supported locale from `accept-language`" do
conn =
:get
|> conn("/cofe")
|> Conn.put_req_header(
"accept-language",
"ru, fr-CH, fr;q=0.9, en;q=0.8, *;q=0.5"
)
|> SetLocalePlug.call([])
assert "ru" == Gettext.get_locale()
assert %{locale: "ru"} == conn.assigns
end
test "use default locale if locale from `accept-language` is not supported" do
conn =
:get
|> conn("/cofe")
|> Conn.put_req_header("accept-language", "tlh")
|> SetLocalePlug.call([])
assert "en" == Gettext.get_locale()
assert %{locale: "en"} == conn.assigns
end
end