52 lines
814 B
Go
52 lines
814 B
Go
package registry
|
|
|
|
import (
|
|
"net"
|
|
"sync"
|
|
|
|
"github.com/go-gost/gost/pkg/hosts"
|
|
)
|
|
|
|
var (
|
|
hostsReg = &hostsRegistry{}
|
|
)
|
|
|
|
func Hosts() *hostsRegistry {
|
|
return hostsReg
|
|
}
|
|
|
|
type hostsRegistry struct {
|
|
m sync.Map
|
|
}
|
|
|
|
func (r *hostsRegistry) Register(name string, hosts hosts.HostMapper) error {
|
|
if _, loaded := r.m.LoadOrStore(name, hosts); loaded {
|
|
return ErrDup
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (r *hostsRegistry) Unregister(name string) {
|
|
r.m.Delete(name)
|
|
}
|
|
|
|
func (r *hostsRegistry) Get(name string) hosts.HostMapper {
|
|
if _, ok := r.m.Load(name); !ok {
|
|
return nil
|
|
}
|
|
return &hostsWrapper{name: name}
|
|
}
|
|
|
|
type hostsWrapper struct {
|
|
name string
|
|
}
|
|
|
|
func (w *hostsWrapper) Lookup(network, host string) ([]net.IP, bool) {
|
|
v := Hosts().Get(w.name)
|
|
if v == nil {
|
|
return nil, false
|
|
}
|
|
return v.Lookup(network, host)
|
|
}
|