ruby-on-rails-3 – 允许用户从S3存储中下载文件

现在我正在使用Amazon S3和Paperclip,它允许我的用户上传与他们正在创建的事件相关联的图像.我的最终目标是因为其他人可以查看此事件,以便能够点击图像,并将其提示保存到他们的计算机.到目前为止,点击链接将在浏览器窗口中打开图像.我宁愿要求他们下载.所有图像仅保存在S3,而不是本地.需要隐藏暴露的s3 url,如果可能,或伪装它

这是我当前的设置

的index.html

<%= link_to 'Download Creative',event.creative.url,class: "btn btn-info" %>

Event.rb

has_attached_file :creative,:styles => { :thumb => "150x150",:custcreative => "250x75" },:path => ":attachment/:id/:style.:extension",:s3_domain_url => "******.s3.amazonaws.com",:storage => :s3,:s3_credentials => Rails.root.join("config/s3.yml"),:bucket => '*****',:s3_permissions => :public_read,:s3_protocol => "http",:convert_options => { :all => "-auto-orient" },:encode => 'utf8'

希望有人能帮助我.

#routes
resources :events do
  member { get :download }
end

#index
<%= link_to 'Download Creative',download_event_path(event),class: "btn btn-info" %>

#events_controller
def download
  data = open(event.creative_url)
  send_data data.read,:type => data.content_type,:x_sendfile => true
end