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require 'aws-sdk-core/s3'
require 'fileutils'
class DownloadsController < ApplicationController
before_action :set_download, only: [:show, :edit, :update, :destroy]
# GET /downloads
# GET /downloads.json
def index
@downloads = Download.all
end
# GET /downloads/:filename
def show
not_found if @download.nil?
begin
s3client = Aws::S3::Client.new()
s3obj = Aws::S3::Object.new(ENV['S3_DOWNLOADS_BUCKET'], @download.filename, client: s3client)
resp = s3obj.get
FileUtils.mkdir_p(Rails.root.join('tmp', 'downloads'))
cached_filename = Rails.root.join('tmp', 'downloads', @download.filename)
File.open(cached_filename, 'wb') do |file|
file.write resp.body.read
end
@download.hits += 1
@download.save
send_file cached_filename
rescue Aws::S3::Errors::NoSuchKey
not_found
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_download
@download = Download.find_by(filename: params[:id])
end
end
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