Method: Fog::Storage::AWS::Mock#get_object

Defined in:
lib/fog/aws/requests/storage/get_object.rb

#get_object(bucket_name, object_name, options = {}, &block) ⇒ Object

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# File 'lib/fog/aws/requests/storage/get_object.rb', line 68

def get_object(bucket_name, object_name, options = {}, &block)
  version_id = options.delete('versionId')

  unless bucket_name
    raise ArgumentError.new('bucket_name is required')
  end

  unless object_name
    raise ArgumentError.new('object_name is required')
  end

  response = Excon::Response.new
  if (bucket = self.data[:buckets][bucket_name])
    object = nil
    if bucket[:objects].has_key?(object_name)
      object = version_id ? bucket[:objects][object_name].find { |object| object['VersionId'] == version_id} : bucket[:objects][object_name].first
    end

    if (object && !object[:delete_marker])
      if options['If-Match'] && options['If-Match'] != object['ETag']
        response.status = 412
      elsif options['If-Modified-Since'] && options['If-Modified-Since'] > Time.parse(object['Last-Modified'])
        response.status = 304
      elsif options['If-None-Match'] && options['If-None-Match'] == object['ETag']
        response.status = 304
      elsif options['If-Unmodified-Since'] && options['If-Unmodified-Since'] < Time.parse(object['Last-Modified'])
        response.status = 412
      else
        response.status = 200
        for key, value in object
          case key
          when 'Cache-Control', 'Content-Disposition', 'Content-Encoding', 'Content-Length', 'Content-MD5', 'Content-Type', 'ETag', 'Expires', 'Last-Modified', /^x-amz-meta-/
            response.headers[key] = value
          end
        end

        response.headers['x-amz-version-id'] = object['VersionId'] if bucket[:versioning]

        body = object[:body]
        if options['Range']
          # since AWS S3 itself does not support multiple range headers, we will use only the first
          ranges = byte_ranges(options['Range'], body.size)
          unless ranges.nil? || ranges.empty?
            response.status = 206
            body = body[ranges.first]
          end
        end

        unless block_given?
          response.body = body
        else
          data = StringIO.new(body)
          remaining = data.length
          while remaining > 0
            chunk = data.read([remaining, Excon::CHUNK_SIZE].min)
            block.call(chunk)
            remaining -= Excon::CHUNK_SIZE
          end
        end
      end
    elsif version_id && !object
      response.status = 400
      response.body = {
        'Error' => {
          'Code' => 'InvalidArgument',
          'Message' => 'Invalid version id specified',
          'ArgumentValue' => version_id,
          'ArgumentName' => 'versionId',
          'RequestId' => Fog::Mock.random_hex(16),
          'HostId' => Fog::Mock.random_base64(65)
        }
      }

      raise(Excon::Errors.status_error({:expects => 200}, response))
    else
      response.status = 404
      response.body = "...<Code>NoSuchKey<\/Code>..."
      raise(Excon::Errors.status_error({:expects => 200}, response))
    end
  else
    response.status = 404
    response.body = "...<Code>NoSuchBucket</Code>..."
    raise(Excon::Errors.status_error({:expects => 200}, response))
  end
  response
end