Support multiple locales from userLanguage cookie

This commit is contained in:
Tusooa Zhu 2022-03-03 02:31:36 -05:00
parent 7ea330b4fe
commit aca11fb70e
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GPG Key ID: 7B467EDE43A08224
3 changed files with 39 additions and 17 deletions

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@ -37,7 +37,7 @@ def language_tag do
def normalize_locale(locale) do
if is_binary(locale) do
String.replace(locale, "-", "_")
String.replace(locale, "-", "_", global: true)
else
nil
end
@ -51,13 +51,28 @@ def supports_locale?(locale) do
def variant?(locale), do: String.contains?(locale, "_")
def supported_variants_of_locale(locale) do
cond do
variant?(locale) ->
[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)
|> 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) ->
[locale]
[]
variant?(locale) ->
lang = language_for_variant(locale)
if supports_locale?(lang), do: [lang], else: []
true ->
Gettext.known_locales(Pleroma.Web.Gettext)

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@ -26,11 +26,12 @@ defp get_locales_from_header(conn) do
|> extract_preferred_language()
|> normalize_language_codes()
|> all_supported()
|> Enum.uniq()
end
defp all_supported(locales) do
locales
|> Enum.flat_map(&Pleroma.Web.Gettext.supported_variants_of_locale/1)
|> Pleroma.Web.Gettext.ensure_fallbacks()
|> Enum.filter(&supported_locale?/1)
end
@ -53,8 +54,7 @@ defp extract_frontend_language(conn) do
[]
fe_lang ->
[fe_lang]
|> ensure_language_fallbacks()
String.split(fe_lang, ",")
end
end
@ -67,7 +67,6 @@ defp extract_accept_language(conn) do
|> Enum.sort(&(&1.quality > &2.quality))
|> Enum.map(& &1.tag)
|> Enum.reject(&is_nil/1)
|> ensure_language_fallbacks()
_ ->
[]
@ -89,11 +88,4 @@ defp parse_language_option(string) do
%{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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@ -75,6 +75,21 @@ test "it assigns all supported locales" do
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
end
test "fallback to some variant of the language if the unqualified language is not supported" do
conn =
:get