discourse/lib/theme_translation_parser.rb

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# frozen_string_literal: true
class ThemeTranslationParser
INTERNAL_KEYS = [:theme_metadata]
class InvalidYaml < StandardError; end
2019-01-25 12:44:02 -05:00
def initialize(setting_field, internal: false)
@setting_field = setting_field
@internal = internal
end
def self.check_contains_hashes(hash)
hash.all? { |key, value| value.is_a?(String) || (value.is_a?(Hash) && self.check_contains_hashes(value)) }
end
def load
return {} if @setting_field.value.blank?
begin
parsed = YAML.safe_load(@setting_field.value)
rescue Psych::SyntaxError, Psych::DisallowedClass => e
raise InvalidYaml.new(e.message)
end
raise InvalidYaml.new(I18n.t("themes.locale_errors.invalid_yaml")) unless parsed.is_a?(Hash) && ThemeTranslationParser.check_contains_hashes(parsed)
raise InvalidYaml.new(I18n.t("themes.locale_errors.top_level_locale")) unless parsed.keys.length == 1 && parsed.keys[0] == @setting_field.name
parsed.deep_symbolize_keys!
parsed[@setting_field.name.to_sym].slice!(*INTERNAL_KEYS) if @internal
parsed[@setting_field.name.to_sym].except!(*INTERNAL_KEYS) if !@internal
parsed
end
end