Properly deal with client accept languages containing a culture identifier
such as "zh-CN" or "pt-BR".
Fixes #1226.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
local lang = conf.main.lang or "auto"
if lang == "auto" then
local aclang = http.getenv("HTTP_ACCEPT_LANGUAGE") or ""
local lang = conf.main.lang or "auto"
if lang == "auto" then
local aclang = http.getenv("HTTP_ACCEPT_LANGUAGE") or ""
- for lpat in aclang:gmatch("[%w-]+") do
- lpat = lpat and lpat:gsub("-", "_")
- if conf.languages[lpat] then
- lang = lpat
+ for aclang in aclang:gmatch("[%w_-]+") do
+ local country, culture = aclang:match("^([a-z][a-z])[_-]([a-zA-Z][a-zA-Z])$")
+ if country and culture then
+ local cc = "%s_%s" %{ country, culture:lower() }
+ if conf.languages[cc] then
+ lang = cc
+ break
+ elseif conf.languages[country] then
+ lang = country
+ break
+ end
+ elseif conf.languages[aclang] then
+ lang = aclang