头像是如何存储和访问的？

zogstrip · 2016 年11 月 18 日 22:05

Yeah, that’s because we proxy them in order to deal with ‘unknown’ size (the “120” in your URL) and whatnot.

app/controllers/user_avatars_controller.rb

main


      
            hijack do
              image = LetterAvatar.generate(params[:username].to_s, params[:size].to_i)
          
              response.headers["Last-Modified"] = File.ctime(image).httpdate
              response.headers["Content-Length"] = File.size(image).to_s
              immutable_for(1.year)
              send_file image, disposition: nil
            end
          end
          
          def show
            is_asset_path
          
            # we need multisite support to keep a single origin pull for CDNs
            RailsMultisite::ConnectionManagement.with_hostname(params[:hostname]) do
              hijack { show_in_site(params[:hostname]) }
            end
          end
          
          protected

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头像是如何存储和访问的？

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