Update hostname regex to accept "-"

ssiuhk · ssiuhk · commit 3b4513eebdfc · 2021-02-18T22:54:27.000+08:00
Updated hostname regex to accept "-" according to RFC 1123
diff --git a/frontend/frontend.go b/frontend/frontend.go
@@ -153,7 +153,7 @@ func buildTemplate() *template.Template {
 }
 
 func isValidHostname(host string) (string, bool) {
-	valid, _ := regexp.Match("^[a-z0-9]{1,32}$", []byte(host))
+	valid, _ := regexp.Match("^([a-zA-Z0-9]([a-zA-Z0-9\\-]{0,61}[a-zA-Z0-9])?)$", []byte(host))
 
 	return host, valid
 }

Original file line number	Diff line number	Diff line change
`@@ -153,7 +153,7 @@ func buildTemplate() *template.Template {`
`153`	`153`	`}`
`154`	`154`
`155`	`155`	`func isValidHostname(host string) (string, bool) {`
`156`		`- valid, _ := regexp.Match("^[a-z0-9]{1,32}$", []byte(host))`
	`156`	`+ valid, _ := regexp.Match("^([a-zA-Z0-9]([a-zA-Z0-9\\-]{0,61}[a-zA-Z0-9])?)$", []byte(host))`
`157`	`157`
`158`	`158`	`return host, valid`
`159`	`159`	`}`