http/httpguts: eschew UTF-8 decoding in ValidHeaderFieldName

Julien Cretel · Julien Cretel · commit 1f1d25d1ecc3 · 2024-04-10T15:00:15.000+02:00
diff --git a/http/httpguts/httplex.go b/http/httpguts/httplex.go
@@ -197,8 +197,8 @@ func ValidHeaderFieldName(v string) bool {
 	if len(v) == 0 {
 		return false
 	}
-	for _, r := range v {
-		if !IsTokenRune(r) {
+	for i := 0; i < len(v); i++ {
+		if !isTokenTable[v[i]] {
 			return false
 		}
 	}

Original file line number	Diff line number	Diff line change
`@@ -197,8 +197,8 @@ func ValidHeaderFieldName(v string) bool {`
`197`	`197`	`if len(v) == 0 {`
`198`	`198`	`return false`
`199`	`199`	`}`
`200`		`- for _, r := range v {`
`201`		`- if !IsTokenRune(r) {`
	`200`	`+ for i := 0; i < len(v); i++ {`
	`201`	`+ if !isTokenTable[v[i]] {`
`202`	`202`	`return false`
`203`	`203`	`}`
`204`	`204`	`}`