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diff --git a/lib/pleroma/web/gettext.ex b/lib/pleroma/web/gettext.ex
index cd795008d..89feb0bb3 100644
--- a/lib/pleroma/web/gettext.ex
+++ b/lib/pleroma/web/gettext.ex
@@ -1,151 +1,152 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.Gettext do
@moduledoc """
A module providing Internationalization with a gettext-based API.
By using [Gettext](https://hexdocs.pm/gettext),
your module gains a set of macros for translations, for example:
import Pleroma.Web.Gettext
# Simple translation
gettext "Here is the string to translate"
# Plural translation
ngettext "Here is the string to translate",
"Here are the strings to translate",
3
# Domain-based translation
dgettext "errors", "Here is the error message to translate"
See the [Gettext Docs](https://hexdocs.pm/gettext) for detailed usage.
"""
use Gettext, otp_app: :pleroma
def language_tag do
# Naive implementation: HTML lang attribute uses BCP 47, which
# uses - as a separator.
# https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang
Gettext.get_locale()
|> String.replace("_", "-", global: true)
end
def normalize_locale(locale) do
if is_binary(locale) do
String.replace(locale, "-", "_", global: true)
else
nil
end
end
def supports_locale?(locale) do
Pleroma.Web.Gettext
|> Gettext.known_locales()
|> Enum.member?(locale)
end
def variant?(locale), do: String.contains?(locale, "_")
def language_for_variant(locale) do
Enum.at(String.split(locale, "_"), 0)
end
def ensure_fallbacks(locales) do
locales
|> Enum.flat_map(fn locale ->
- others = other_supported_variants_of_locale(locale)
+ others =
+ other_supported_variants_of_locale(locale)
|> Enum.filter(fn l -> not Enum.member?(locales, l) end)
[locale] ++ others
end)
end
def other_supported_variants_of_locale(locale) do
cond do
supports_locale?(locale) ->
[]
variant?(locale) ->
lang = language_for_variant(locale)
if supports_locale?(lang), do: [lang], else: []
true ->
Gettext.known_locales(Pleroma.Web.Gettext)
|> Enum.filter(fn l -> String.starts_with?(l, locale <> "_") end)
end
end
- def get_locales() do
+ def get_locales do
Process.get({Pleroma.Web.Gettext, :locales}, [])
end
def is_locale_list(locales) do
Enum.all?(locales, &is_binary/1)
end
def put_locales(locales) do
if is_locale_list(locales) do
Process.put({Pleroma.Web.Gettext, :locales}, Enum.uniq(locales))
Gettext.put_locale(Enum.at(locales, 0, Gettext.get_locale()))
:ok
else
{:error, :not_locale_list}
end
end
def locale_or_default(locale) do
if supports_locale?(locale) do
locale
else
Gettext.get_locale()
end
end
def with_locales_func(locales, fun) do
prev_locales = Process.get({Pleroma.Web.Gettext, :locales})
put_locales(locales)
try do
fun.()
after
if prev_locales do
put_locales(prev_locales)
else
Process.delete({Pleroma.Web.Gettext, :locales})
end
end
end
defmacro with_locales(locales, do: fun) do
quote do
Pleroma.Web.Gettext.with_locales_func(unquote(locales), fn ->
unquote(fun)
end)
end
end
def to_locale_list(locale) when is_binary(locale) do
locale
|> String.split(",")
|> Enum.filter(&supports_locale?/1)
end
def to_locale_list(_), do: []
defmacro with_locale_or_default(locale, do: fun) do
quote do
Pleroma.Web.Gettext.with_locales_func(
Pleroma.Web.Gettext.to_locale_list(unquote(locale))
|> Enum.concat(Pleroma.Web.Gettext.get_locales()),
fn ->
unquote(fun)
end
)
end
end
end
diff --git a/test/pleroma/web/plugs/set_locale_plug_test.exs b/test/pleroma/web/plugs/set_locale_plug_test.exs
index ff04a859e..f9d34bbe4 100644
--- a/test/pleroma/web/plugs/set_locale_plug_test.exs
+++ b/test/pleroma/web/plugs/set_locale_plug_test.exs
@@ -1,162 +1,164 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.Plugs.SetLocalePlugTest do
use ExUnit.Case, async: true
use Plug.Test
alias Pleroma.Web.Plugs.SetLocalePlug
alias Plug.Conn
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 "fallback to the general language if a variant is not supported" do
conn =
:get
|> conn("/cofe")
|> Conn.put_req_header(
"accept-language",
"ru-CA;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 supported locale with specifiers from `accept-language`" do
conn =
:get
|> conn("/cofe")
|> Conn.put_req_header(
"accept-language",
"zh-Hans;q=0.9, en;q=0.8, *;q=0.5"
)
|> SetLocalePlug.call([])
assert "zh_Hans" == Gettext.get_locale()
assert %{locale: "zh_Hans"} = conn.assigns
end
test "it assigns all supported locales" do
conn =
:get
|> conn("/cofe")
|> Conn.put_req_header(
"accept-language",
"ru, fr-CH, fr;q=0.9, en;q=0.8, x-unsupported;q=0.8, *;q=0.5"
)
|> SetLocalePlug.call([])
assert "ru" == Gettext.get_locale()
assert %{locale: "ru", locales: ["ru", "fr", "en"]} = conn.assigns
end
test "it assigns all supported locales in cookie" do
conn =
:get
|> conn("/cofe")
|> put_req_cookie(SetLocalePlug.frontend_language_cookie_name(), "zh-Hans,uk,zh-Hant")
|> Conn.put_req_header(
"accept-language",
"ru, fr-CH, fr;q=0.9, en;q=0.8, x-unsupported;q=0.8, *;q=0.5"
)
|> SetLocalePlug.call([])
assert "zh_Hans" == Gettext.get_locale()
- assert %{locale: "zh_Hans", locales: ["zh_Hans", "uk", "zh_Hant", "ru", "fr", "en"]} = conn.assigns
+
+ assert %{locale: "zh_Hans", locales: ["zh_Hans", "uk", "zh_Hant", "ru", "fr", "en"]} =
+ conn.assigns
end
test "fallback to some variant of the language if the unqualified language is not supported" do
conn =
:get
|> conn("/cofe")
|> Conn.put_req_header(
"accept-language",
"zh;q=0.9, en;q=0.8, *;q=0.5"
)
|> SetLocalePlug.call([])
assert "zh_" <> _ = Gettext.get_locale()
assert %{locale: "zh_" <> _} = conn.assigns
end
test "use supported locale from cookie" do
conn =
:get
|> conn("/cofe")
|> put_req_cookie(SetLocalePlug.frontend_language_cookie_name(), "zh-Hans")
|> Conn.put_req_header(
"accept-language",
"ru, fr-CH, fr;q=0.9, en;q=0.8, *;q=0.5"
)
|> SetLocalePlug.call([])
assert "zh_Hans" == Gettext.get_locale()
assert %{locale: "zh_Hans"} = conn.assigns
end
test "fallback to supported locale from `accept-language` if locale in cookie not supported" do
conn =
:get
|> conn("/cofe")
|> put_req_cookie(SetLocalePlug.frontend_language_cookie_name(), "x-nonexist")
|> 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 "fallback to default if nothing is supported" do
conn =
:get
|> conn("/cofe")
|> put_req_cookie(SetLocalePlug.frontend_language_cookie_name(), "x-nonexist")
|> Conn.put_req_header(
"accept-language",
"x-nonexist"
)
|> SetLocalePlug.call([])
assert "en" == Gettext.get_locale()
assert %{locale: "en"} = 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

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