parseAddr() — fiber Function Reference

Architecture documentation for the parseAddr() function in helpers.go from the fiber codebase.

Function go FiberCore Context

Entity Profile

FiberCore→ Context→ parseAddr() — fiber Function Reference

Dependency Diagram

graph TD
  e26cf47c_c4d0_b9c7_e705_90c0e5c40ea7["parseAddr()"]
  bec0e401_e4cd_f765_6df3_a79059073e50["helpers.go"]
  e26cf47c_c4d0_b9c7_e705_90c0e5c40ea7 -->|defined in| bec0e401_e4cd_f765_6df3_a79059073e50
  style e26cf47c_c4d0_b9c7_e705_90c0e5c40ea7 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

helpers.go lines 737–770

func parseAddr(raw string) (host, port string) { //nolint:nonamedreturns // gocritic unnamedResult requires naming host and port parts for clarity
	if raw == "" {
		return "", ""
	}

	raw = utils.TrimSpace(raw)

	// Handle IPv6 addresses enclosed in brackets as defined by RFC 3986
	if strings.HasPrefix(raw, "[") {
		if end := strings.IndexByte(raw, ']'); end != -1 {
			host = raw[:end+1] // keep the closing ]
			if len(raw) > end+1 && raw[end+1] == ':' {
				return host, raw[end+2:]
			}
			return host, ""
		}
	}

	// Everything else with a colon
	if i := strings.LastIndexByte(raw, ':'); i != -1 {
		host, port = raw[:i], raw[i+1:]

		// If “host” still contains ':', we must have hit an un-bracketed IPv6
		// literal. In that form a port is impossible, so treat the whole thing
		// as host.
		if strings.IndexByte(host, ':') >= 0 {
			return raw, ""
		}
		return host, port
	}

	// No colon, nothing to split
	return raw, ""
}