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57 lines
1.2 KiB
Go
57 lines
1.2 KiB
Go
// +build !confonly
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package dns
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import (
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"context"
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"github.com/xtls/xray-core/v1/common/net"
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"github.com/xtls/xray-core/v1/features/dns/localdns"
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)
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// IPOption is an object for IP query options.
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type IPOption struct {
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IPv4Enable bool
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IPv6Enable bool
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}
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// Client is the interface for DNS client.
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type Client interface {
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// Name of the Client.
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Name() string
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// QueryIP sends IP queries to its configured server.
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QueryIP(ctx context.Context, domain string, option IPOption) ([]net.IP, error)
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}
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type LocalNameServer struct {
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client *localdns.Client
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}
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func (s *LocalNameServer) QueryIP(ctx context.Context, domain string, option IPOption) ([]net.IP, error) {
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if option.IPv4Enable && option.IPv6Enable {
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return s.client.LookupIP(domain)
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}
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if option.IPv4Enable {
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return s.client.LookupIPv4(domain)
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}
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if option.IPv6Enable {
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return s.client.LookupIPv6(domain)
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}
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return nil, newError("neither IPv4 nor IPv6 is enabled")
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}
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func (s *LocalNameServer) Name() string {
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return "localhost"
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}
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func NewLocalNameServer() *LocalNameServer {
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newError("DNS: created localhost client").AtInfo().WriteToLog()
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return &LocalNameServer{
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client: localdns.New(),
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}
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}
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