35 lines
697 B
Go
35 lines
697 B
Go
|
package resolver
|
||
|
|
|
||
|
|
import (
|
||
|
|
"context"
|
||
|
|
|
||
|
|
"golang.org/x/net/idna"
|
||
|
|
)
|
||
|
|
|
||
|
|
// IDNAResolver is to support resolving Internationalized Domain Names.
|
||
|
|
// See RFC3492 for more information.
|
||
|
|
type IDNAResolver struct {
|
||
|
|
Resolver
|
||
|
|
}
|
||
|
|
|
||
|
|
// LookupHost implements Resolver.LookupHost
|
||
|
|
func (r IDNAResolver) LookupHost(ctx context.Context, hostname string) ([]string, error) {
|
||
|
|
host, err := idna.ToASCII(hostname)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
return r.Resolver.LookupHost(ctx, host)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Network implements Resolver.Network.
|
||
|
|
func (r IDNAResolver) Network() string {
|
||
|
|
return "idna"
|
||
|
|
}
|
||
|
|
|
||
|
|
// Address implements Resolver.Address.
|
||
|
|
func (r IDNAResolver) Address() string {
|
||
|
|
return ""
|
||
|
|
}
|
||
|
|
|
||
|
|
var _ Resolver = IDNAResolver{}
|