mirror of
https://github.com/coredns/coredns.git
synced 2025-11-03 18:53:13 -05:00
37 lines
883 B
Go
37 lines
883 B
Go
package middleware
|
|
|
|
import (
|
|
"net"
|
|
"strings"
|
|
|
|
"github.com/miekg/dns"
|
|
)
|
|
|
|
// Host represents a host from the Corefile, may contain port.
|
|
type (
|
|
Host string
|
|
Addr string
|
|
)
|
|
|
|
// Normalize will return the host portion of host, stripping
|
|
// of any port. The host will also be fully qualified and lowercased.
|
|
func (h Host) Normalize() string {
|
|
// separate host and port
|
|
host, _, err := net.SplitHostPort(string(h))
|
|
if err != nil {
|
|
host, _, _ = net.SplitHostPort(string(h) + ":")
|
|
}
|
|
return strings.ToLower(dns.Fqdn(host))
|
|
}
|
|
|
|
// Normalize will return a normalized address, if not port is specified
|
|
// port 53 is added, otherwise the port will be left as is.
|
|
func (a Addr) Normalize() string {
|
|
// separate host and port
|
|
addr, port, err := net.SplitHostPort(string(a))
|
|
if err != nil {
|
|
addr, port, _ = net.SplitHostPort(string(a) + ":53")
|
|
}
|
|
return net.JoinHostPort(addr, port)
|
|
}
|