Function getSignedHeaders

pkg/signer/request-signature-v4.go:162–175

getSignedHeaders generate all signed request headers. i.e lexically sorted, semicolon-separated list of lowercase request header names.

(req http.Request, ignoredHeaders map[string]bool)

// i.e lexically sorted, semicolon-separated list of lowercase
// request header names.
func getSignedHeaders(req http.Request, ignoredHeaders map[string]bool) string {
	var headers []string
	for k := range req.Header {
		if _, ok := ignoredHeaders[http.CanonicalHeaderKey(k)]; ok {
			continue // Ignored header found continue.
		}
		headers = append(headers, strings.ToLower(k))
	}
	if !headerExists("host", headers) {
		headers = append(headers, "host")
	}
	sort.Strings(headers)
	return strings.Join(headers, ";")
}

// getCanonicalRequest generate a canonical request of style.
//