Add cache headers to static files served through Rails (#24120)
parent
be488adf71
commit
f0e727f958
5 changed files with 49 additions and 21 deletions
@ -0,0 +1,43 @@ |
|||||||
|
# frozen_string_literal: true |
||||||
|
|
||||||
|
require 'action_dispatch/middleware/static' |
||||||
|
|
||||||
|
class PublicFileServerMiddleware |
||||||
|
SERVICE_WORKER_TTL = 7.days.to_i |
||||||
|
CACHE_TTL = 28.days.to_i |
||||||
|
|
||||||
|
def initialize(app) |
||||||
|
@app = app |
||||||
|
@file_handler = ActionDispatch::FileHandler.new(Rails.application.paths['public'].first) |
||||||
|
end |
||||||
|
|
||||||
|
def call(env) |
||||||
|
file = @file_handler.attempt(env) |
||||||
|
|
||||||
|
# If the request is not a static file, move on! |
||||||
|
return @app.call(env) if file.nil? |
||||||
|
|
||||||
|
status, headers, response = file |
||||||
|
|
||||||
|
# Set cache headers on static files. Some paths require different cache headers |
||||||
|
headers['Cache-Control'] = begin |
||||||
|
request_path = env['REQUEST_PATH'] |
||||||
|
|
||||||
|
if request_path.start_with?('/sw.js') |
||||||
|
"public, max-age=#{SERVICE_WORKER_TTL}, must-revalidate" |
||||||
|
elsif request_path.start_with?(paperclip_root_url) |
||||||
|
"public, max-age=#{CACHE_TTL}, immutable" |
||||||
|
else |
||||||
|
"public, max-age=#{CACHE_TTL}, must-revalidate" |
||||||
|
end |
||||||
|
end |
||||||
|
|
||||||
|
[status, headers, response] |
||||||
|
end |
||||||
|
|
||||||
|
private |
||||||
|
|
||||||
|
def paperclip_root_url |
||||||
|
ENV.fetch('PAPERCLIP_ROOT_URL', '/system') |
||||||
|
end |
||||||
|
end |
Loading…
Reference in new issue