moment.js locale whitelist

translatable.rb

  def moment_js_locale
    # to generate this list, go to https://cdnjs.com/libraries/moment.js
    # and run this in the console:
    # $('.library-url').map((index, cell) => "'" + $(cell).text().replace("https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.21.0/locale/", "").replace(".js", "") + "'").get().join(", ")
    valid_moment_js_locales = Set.new(['af', 'ar-dz', 'ar-kw', 'ar-ly', 'ar-ma', 'ar-sa', 'ar-tn', 'ar', 'az', 'be', 'bg', 'bm', 'bn', 'bo', 'br', 'bs', 'ca', 'cs', 'cv', 'cy', 'da', 'de-at', 'de-ch', 'de', 'dv', 'el', 'en-au', 'en-ca', 'en-gb', 'en-ie', 'en-il', 'en-nz', 'eo', 'es-do', 'es-us', 'es', 'et', 'eu', 'fa', 'fi', 'fo', 'fr-ca', 'fr-ch', 'fr', 'fy', 'gd', 'gl', 'gom-latn', 'gu', 'he', 'hi', 'hr', 'hu', 'hy-am', 'id', 'is', 'it', 'ja', 'jv', 'ka', 'kk', 'km', 'kn', 'ko', 'ky', 'lb', 'lo', 'lt', 'lv', 'me', 'mi', 'mk', 'ml', 'mr', 'ms-my', 'ms', 'mt', 'my', 'nb', 'ne', 'nl-be', 'nl', 'nn', 'pa-in', 'pl', 'pt-br', 'pt', 'ro', 'ru', 'sd', 'se', 'si', 'sk', 'sl', 'sq', 'sr-cyrl', 'sr', 'ss', 'sv', 'sw', 'ta', 'te', 'tet', 'tg', 'th', 'tl-ph', 'tlh', 'tr', 'tzl', 'tzm-latn', 'tzm', 'ug-cn', 'uk', 'ur', 'uz-latn', 'uz', 'vi', 'x-pseudo', 'yo', 'zh-cn', 'zh-hk', 'zh-tw'])

    temp_locale = locale.downcase

    # whitelist algorithm: https://github.com/TandaHQ/payaus/pull/3158#discussion_r174992209
    return temp_locale if valid_moment_js_locales.include?(temp_locale)

    until !temp_locale.include?('-')
      split = temp_locale.split('-')
      temp_locale = split.first(split.count - 1).join('-')

      return temp_locale if valid_moment_js_locales.include?(temp_locale)
    end

    'en'
  end