| 29 | } |
| 30 | |
| 31 | func normalizeSchemeHost(scheme, host string) string { |
| 32 | host = utilsstrings.ToLower(host) |
| 33 | |
| 34 | var defaultPort string |
| 35 | switch scheme { |
| 36 | case schemeHTTP: |
| 37 | defaultPort = "80" |
| 38 | case schemeHTTPS: |
| 39 | defaultPort = "443" |
| 40 | default: |
| 41 | return host |
| 42 | } |
| 43 | |
| 44 | // Fast path for a clean "host" or "host:port" value (the common case), |
| 45 | // avoiding the url.Parse allocation. Anything unusual (userinfo, path, |
| 46 | // percent-encoding, bracketed IPv6, control chars, empty/invalid port, ...) |
| 47 | // falls back to the url.Parse path, which preserves the exact legacy behavior. |
| 48 | if hasPort, clean := classifyHostPort(host); clean { |
| 49 | if hasPort { |
| 50 | return host |
| 51 | } |
| 52 | return host + ":" + defaultPort |
| 53 | } |
| 54 | |
| 55 | return normalizeSchemeHostViaParse(scheme, host, defaultPort) |
| 56 | } |
| 57 | |
| 58 | // classifyHostPort reports whether host is a plain "<reg-name-or-IPv4>" or |
| 59 | // "<reg-name-or-IPv4>:<port>" value (clean) and, if so, whether it carries an |