presign_url

in gems/aws-sigv4/lib/aws-sigv4/signer.rb [280:325]

• 39 lines of code
• 9 McCabe index (conditional complexity)

      def presign_url(options)
        creds = fetch_credentials

        http_method = extract_http_method(options)
        url = extract_url(options)
        headers = downcase_headers(options[:headers])
        headers['host'] ||= host(url)

        datetime = headers.delete('x-amz-date')
        datetime ||= (options[:time] || Time.now)

        content_sha256 = headers.delete('x-amz-content-sha256')
        content_sha256 ||= options[:body_digest]
        content_sha256 ||= sha256_hexdigest(options[:body] || '')

        config = Aws::Crt::Auth::SigningConfig.new(
          algorithm: @signing_algorithm,
          signature_type: :http_request_query_params,
          region: @region,
          service: @service,
          date: datetime,
          signed_body_value: content_sha256,
          signed_body_header_type: @apply_checksum_header ?
            :sbht_content_sha256 : :sbht_none,
          credentials: creds,
          unsigned_headers: @unsigned_headers,
          use_double_uri_encode: @uri_escape_path,
          should_normalize_uri_path: @normalize_path,
          omit_session_token: @omit_session_token,
          expiration_in_seconds: options.fetch(:expires_in, 900)
        )
        http_request = Aws::Crt::Http::Message.new(
          http_method, url.to_s, headers
        )
        signable = Aws::Crt::Auth::Signable.new(http_request)

        signing_result = Aws::Crt::Auth::Signer.sign_request(config, signable, http_method, url.to_s)
        url = URI.parse(signing_result[:path])

        if options[:extra] && options[:extra].is_a?(Hash)
          options[:extra][:config] = config
          options[:extra][:signable] = signable
        end
        url
      end