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Feature: resolve ip with a proxy adapter

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This commit is contained in:
yaling888
2022-02-23 02:38:50 +08:00
parent b192238699
commit d876d6e74c
14 changed files with 357 additions and 101 deletions
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32
component/resolver/resolver.go
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@ -15,6 +15,9 @@ var (
// DefaultResolver aim to resolve ip
DefaultResolver Resolver
// MainResolver resolve ip with main domain server
MainResolver Resolver
// DisableIPv6 means don't resolve ipv6 host
// default value is true
DisableIPv6 = true
@ -40,6 +43,14 @@ type Resolver interface {
// ResolveIPv4 with a host, return ipv4
func ResolveIPv4(host string) (net.IP, error) {
return ResolveIPv4WithResolver(host, DefaultResolver)
}
func ResolveIPv4WithMain(host string) (net.IP, error) {
return ResolveIPv4WithResolver(host, MainResolver)
}
func ResolveIPv4WithResolver(host string, r Resolver) (net.IP, error) {
if node := DefaultHosts.Search(host); node != nil {
if ip := node.Data.(net.IP).To4(); ip != nil {
return ip, nil
@ -54,8 +65,8 @@ func ResolveIPv4(host string) (net.IP, error) {
return nil, ErrIPVersion
}
if DefaultResolver != nil {
return DefaultResolver.ResolveIPv4(host)
if r != nil {
return r.ResolveIPv4(host)
}
ctx, cancel := context.WithTimeout(context.Background(), DefaultDNSTimeout)
@ -72,6 +83,14 @@ func ResolveIPv4(host string) (net.IP, error) {
// ResolveIPv6 with a host, return ipv6
func ResolveIPv6(host string) (net.IP, error) {
return ResolveIPv6WithResolver(host, DefaultResolver)
}
func ResolveIPv6WithMain(host string) (net.IP, error) {
return ResolveIPv6WithResolver(host, MainResolver)
}
func ResolveIPv6WithResolver(host string, r Resolver) (net.IP, error) {
if DisableIPv6 {
return nil, ErrIPv6Disabled
}
@ -90,8 +109,8 @@ func ResolveIPv6(host string) (net.IP, error) {
return nil, ErrIPVersion
}
if DefaultResolver != nil {
return DefaultResolver.ResolveIPv6(host)
if r != nil {
return r.ResolveIPv6(host)
}
ctx, cancel := context.WithTimeout(context.Background(), DefaultDNSTimeout)
@ -138,3 +157,8 @@ func ResolveIPWithResolver(host string, r Resolver) (net.IP, error) {
func ResolveIP(host string) (net.IP, error) {
return ResolveIPWithResolver(host, DefaultResolver)
}
// ResolveIPWithMainResolver with a host, use main resolver, return ip
func ResolveIPWithMainResolver(host string) (net.IP, error) {
return ResolveIPWithResolver(host, MainResolver)
}