discourse/app/controllers/extra_locales_controller.rb

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# frozen_string_literal: true
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class ExtraLocalesController < ApplicationController
layout :false
skip_before_action :check_xhr,
:preload_json,
:redirect_to_login_if_required,
:verify_authenticity_token
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OVERRIDES_BUNDLE ||= 'overrides'
MD5_HASH_LENGTH ||= 32
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def show
bundle = params[:bundle]
raise Discourse::InvalidAccess.new if !valid_bundle?(bundle)
version = params[:v]
if version.present?
if version.kind_of?(String) && version.length == MD5_HASH_LENGTH
hash = ExtraLocalesController.bundle_js_hash(bundle)
immutable_for(1.year) if hash == version
else
raise Discourse::InvalidParameters.new(:v)
end
end
render plain: ExtraLocalesController.bundle_js(bundle), content_type: "application/javascript"
end
def self.bundle_js_hash(bundle)
if bundle == OVERRIDES_BUNDLE
site = RailsMultisite::ConnectionManagement.current_db
@by_site ||= {}
@by_site[site] ||= {}
@by_site[site][I18n.locale] ||= begin
js = bundle_js(bundle)
js.present? ? Digest::MD5.hexdigest(js) : nil
end
else
@bundle_js_hash ||= {}
@bundle_js_hash["#{bundle}_#{I18n.locale}"] ||= Digest::MD5.hexdigest(bundle_js(bundle))
end
end
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def self.url(bundle)
"#{Discourse.base_uri}/extra-locales/#{bundle}?v=#{bundle_js_hash(bundle)}"
end
def self.client_overrides_exist?
bundle_js_hash(OVERRIDES_BUNDLE).present?
end
def self.bundle_js(bundle)
locale_str = I18n.locale.to_s
bundle_str = "#{bundle}_js"
if bundle == OVERRIDES_BUNDLE
JsLocaleHelper.output_client_overrides(locale_str)
else
JsLocaleHelper.output_extra_locales(bundle_str, locale_str)
end
end
def self.clear_cache!
site = RailsMultisite::ConnectionManagement.current_db
@by_site&.delete(site)
end
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private
def valid_bundle?(bundle)
bundle == OVERRIDES_BUNDLE || (bundle =~ /^(admin|wizard)$/ && current_user&.staff?)
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end
end