Function maskQueryParams

logging/access.go:123–136

maskQueryParams masks (i.e., hashing) specific query parameters in the provided request's URI. Returns the obfuscated URI.

(req *http.Request, maskedQueryParams map[string]struct{})

// maskQueryParams masks (i.e., hashing) specific query parameters in the provided request's URI.
// Returns the obfuscated URI.
func maskQueryParams(req *http.Request, maskedQueryParams map[string]struct{}) string {
	strippedURI := stripQueryString(req.RequestURI)

	params := req.URL.Query()
	for k := range maskedQueryParams {
		val := params.Get(k)
		if val == "" {
			continue
		}
		params.Set(k, fmt.Sprintf("%d", hash(val)))
	}

	return fmt.Sprintf("%s?%s", strippedURI, params.Encode())
}

func hash(val string) uint64 {
	return xxhash.Sum64String(val)