mirror of
https://github.com/Neetpone/foalfetch.git
synced 2025-02-08 18:06:43 +01:00
33 lines
775 B
Ruby
33 lines
775 B
Ruby
# frozen_string_literal: true
|
|
require 'open-uri'
|
|
|
|
# Handles proxying images from the FiMFiction CDN and caching them locally, in case they disappear.
|
|
class ImagesController < ApplicationController
|
|
# noinspection RubyMismatchedArgumentType
|
|
def show
|
|
url = params[:url]
|
|
parsed = URI.parse(url)
|
|
|
|
if parsed.host != 'cdn-img.fimfiction.net'
|
|
render nothing: true, status: :bad_request
|
|
return
|
|
end
|
|
|
|
ext = File.extname(url)
|
|
hash = Digest::SHA256.hexdigest(url)
|
|
path = Rails.root.join('public', 'cached-images', hash + ext)
|
|
our_url = "/cached-images/#{hash}#{ext}"
|
|
|
|
if File.exist? path
|
|
redirect_to our_url
|
|
return
|
|
end
|
|
|
|
File.binwrite(
|
|
path,
|
|
Net::HTTP.get(parsed)
|
|
)
|
|
|
|
redirect_to our_url
|
|
end
|
|
end
|