# File lib/s3/right_s3_interface.rb, line 569
        def retrieve_object(params, &block)
            AwsUtils.mandatory_arguments([:bucket, :key], params)
            AwsUtils.allow_only([:bucket, :key, :headers, :md5], params)
            params[:headers] = {} unless params[:headers]
            req_hash = generate_rest_request('GET', params[:headers].merge(:url=>"#{params[:bucket]}/#{CGI::escape params[:key]}"))
            resp = request_info(req_hash, S3HttpResponseBodyParser.new, &block)
            resp[:verified_md5] = false
            if (params[:md5] && (resp[:headers]['etag'].gsub(/\"/, '') == params[:md5]))
                resp[:verified_md5] = true
            end
            resp
        rescue
            on_exception
        end