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// Copyright (c) 2012-2016 Eli Janssen
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package statsd
import (
"fmt"
"net"
"regexp"
)
// The ValidatorFunc type defines a function that can serve
// as a stat name validation function.
type ValidatorFunc func(string) error
var safeName = regexp.MustCompile(`^[a-zA-Z0-9\-_.]+$`)
// CheckName may be used to validate whether a stat name contains invalid
// characters. If invalid characters are found, the function will return an
// error.
func CheckName(stat string) error {
if !safeName.MatchString(stat) {
return fmt.Errorf("invalid stat name: %s", stat)
}
return nil
}
func mustBeIP(hostport string) bool {
host, _, err := net.SplitHostPort(hostport)
if err != nil {
return false
}
ip := net.ParseIP(host)
return ip != nil
}
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