discourse/app/controllers/highlight_js_controller.rb
Sam a82530012a FEATURE: Allow selection of highlight js languages
PERF: stop loading highlight js on load

To get latest highlight js run bin/rake highlightjs:update
2015-03-13 16:18:59 +11:00

26 lines
1,018 B
Ruby

class HighlightJsController < ApplicationController
skip_before_filter :redirect_to_login_if_required, :check_xhr, :verify_authenticity_token, only: [:show]
def show
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
expires_in 1.year, public: true
render text: highlight_js, disposition: nil, content_type: 'application/javascript'
end
end
end