Class: VagrantPlugins::S3MultiDownloader::HandleS3Urls

Inherits:
Object
  • Object
show all
Defined in:
lib/vagrant-s3-multidownloader/middleware/handle_s3_urls.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, env) ⇒ HandleS3Urls

Returns a new instance of HandleS3Urls.



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# File 'lib/vagrant-s3-multidownloader/middleware/handle_s3_urls.rb', line 7

def initialize(app, env)
  @app = app
  @env = env
  @logger = Log4r::Logger.new("vagrant::s3-multidownloader")
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/vagrant-s3-multidownloader/middleware/handle_s3_urls.rb', line 13

def call(env)
  @env = env

  # Save references to the original Downloader methods
  unless defined? @@original_curl_execute
    @@original_curl_execute = Vagrant::Util::Downloader.instance_method(:execute_curl)
  end

  unless defined? @@original_download
    @@original_download = Vagrant::Util::Downloader.instance_method(:download!)
  end

  # Override both download! and execute_curl to handle s3:// URLs
  # We need to intercept at both levels to ensure we catch all S3 URL usage
  unless Vagrant::Util::Downloader.instance_methods.include?(:original_download)
    Vagrant::Util::Downloader.class_eval do
      alias_method :original_download, :download!

      def download!
        if @source.to_s.start_with?("s3://")
          ui = @ui || @logger
          ui.info("Intercepted S3 download at download! level: #{@source}")
          downloader = VagrantPlugins::S3MultiDownloader::Downloader.new(
            @source, @destination, ui,
            continue: @continue,
            headers: @headers,
            env: @env
          )
          return downloader.download!
        end
        original_download
      end
    end
  end

  # Also override execute_curl to catch any direct curl executions with S3 URLs
  unless Vagrant::Util::Downloader.instance_methods.include?(:original_execute_curl)
    Vagrant::Util::Downloader.class_eval do
      alias_method :original_execute_curl, :execute_curl

      def execute_curl(options, subprocess_options, &data_proc)
        # More aggressively check for S3 URLs in the options array
        # This needs to catch any occurrence of s3:// in the curl command
        s3_url = nil
        options.each do |opt|
          if opt.to_s =~ /^s3:\/\//
            s3_url = opt.to_s
            break
          end
        end

        if s3_url
          ui = @ui || @logger
          ui.info("Intercepted S3 URL in curl command: #{s3_url}")

          # Find the output path from the curl options
          output_index = options.find_index("--output")
          output_path = output_index ? options[output_index + 1] : nil

          if output_path
            ui.detail("Output path: #{output_path}")
            # Use our S3 downloader instead
            downloader = VagrantPlugins::S3MultiDownloader::Downloader.new(
              s3_url, output_path, ui, env: @env
            )

            begin
              ui.detail("Downloading from S3 via custom downloader: #{s3_url}")
              downloader.download!
              ui.detail("S3 download completed successfully")
              return 0 # Return success status code
            rescue => e
              ui.error("S3 download error: #{e.message}")
              ui.error(e.backtrace.join("\n"))
              return 1 # Return error status code
            end
          else
            ui.error("Could not determine output path for S3 download")
            return 1
          end
        end

        # For non-S3 URLs, use the original method
        original_execute_curl(options, subprocess_options, &data_proc)
      end
    end
  end

  # Continue middleware chain
  @app.call(env)
end