unoptimal refactoring

utils/utils.go

@@ -2,6 +2,7 @@ package utils
 
 import "strings"
 
+// Mailbox returns mailbox part from email address
 func Mailbox(email string) string {
 	index := strings.LastIndex(email, "@")
 	if index == -1 {
@@ -10,6 +11,17 @@ func Mailbox(email string) string {
 	return email[:strings.LastIndex(email, "@")]
 }
 
+// Hostname returns hostname part from email address
 func Hostname(email string) string {
 	return email[strings.LastIndex(email, "@")+1:]
 }
+
+// Bool converts string to boolean
+func Bool(str string) bool {
+	str = strings.ToLower(str)
+	if str == "" {
+		return false
+	}
+
+	return (str == "1" || str == "true" || str == "yes")
+}