discourse/app/controllers/highlight_js_controller.rb
Sam Saffron 30990006a9 DEV: enable frozen string literal on all files
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.

Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
2019-05-13 09:31:32 +08:00

31 lines
1.0 KiB
Ruby

# frozen_string_literal: true
class HighlightJsController < ApplicationController
skip_before_action :preload_json, :redirect_to_login_if_required, :check_xhr, :verify_authenticity_token, only: [:show]
def show
no_cookies
RailsMultisite::ConnectionManagement.with_hostname(params[:hostname]) do
current_version = HighlightJs.version(SiteSetting.highlighted_languages)
if current_version != params[:version]
return redirect_to path(HighlightJs.path)
end
# note, this can be slightly optimised by caching the bundled file, it cuts down on N reads
# our nginx config caches this so in practical terms it does not really matter and keeps
# code simpler
highlight_js = HighlightJs.bundle(SiteSetting.highlighted_languages.split("|"))
response.headers["Last-Modified"] = 10.years.ago.httpdate
response.headers["Content-Length"] = highlight_js.bytesize.to_s
immutable_for 1.year
render plain: highlight_js, disposition: nil, content_type: 'application/javascript'
end
end
end