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Fix: domain dns should follow hosts config, close #1318

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This commit is contained in:
Dreamacro 2021-04-01 21:20:44 +08:00
parent 4ad9761b32
commit d0c829c578
3 changed files with 18 additions and 11 deletions
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20
component/resolver/resolver.go
View File

@ -3,6 +3,7 @@ package resolver
import (
"context"
"errors"
"math/rand"
"net"
"strings"
"time"
@ -66,7 +67,7 @@ func ResolveIPv4(host string) (net.IP, error) {
return nil, ErrIPNotFound
}
return ipAddrs[0], nil
return ipAddrs[rand.Intn(len(ipAddrs))], nil
}
// ResolveIPv6 with a host, return ipv6
@ -102,20 +103,20 @@ func ResolveIPv6(host string) (net.IP, error) {
return nil, ErrIPNotFound
}
return ipAddrs[0], nil
return ipAddrs[rand.Intn(len(ipAddrs))], nil
}
// ResolveIP with a host, return ip
func ResolveIP(host string) (net.IP, error) {
// ResolveIPWithResolver same as ResolveIP, but with a resolver
func ResolveIPWithResolver(host string, r Resolver) (net.IP, error) {
if node := DefaultHosts.Search(host); node != nil {
return node.Data.(net.IP), nil
}
if DefaultResolver != nil {
if r != nil {
if DisableIPv6 {
return DefaultResolver.ResolveIPv4(host)
return r.ResolveIPv4(host)
}
return DefaultResolver.ResolveIP(host)
return r.ResolveIP(host)
} else if DisableIPv6 {
return ResolveIPv4(host)
}
@ -132,3 +133,8 @@ func ResolveIP(host string) (net.IP, error) {
return ipAddr.IP, nil
}
// ResolveIP with a host, return ip
func ResolveIP(host string) (net.IP, error) {
return ResolveIPWithResolver(host, DefaultResolver)
}

4
dns/client.go
View File

@ -7,6 +7,7 @@ import (
"strings"
"github.com/Dreamacro/clash/component/dialer"
"github.com/Dreamacro/clash/component/resolver"
D "github.com/miekg/dns"
)
@ -28,8 +29,7 @@ func (c *client) ExchangeContext(ctx context.Context, m *D.Msg) (msg *D.Msg, err
// a default ip dns
ip = net.ParseIP(c.host)
} else {
var err error
if ip, err = c.r.ResolveIP(c.host); err != nil {
if ip, err = resolver.ResolveIPWithResolver(c.host, c.r); err != nil {
return nil, fmt.Errorf("use default dns resolve failed: %w", err)
}
}

5
dns/doh.go
View File

@ -9,6 +9,7 @@ import (
"net/http"
"github.com/Dreamacro/clash/component/dialer"
"github.com/Dreamacro/clash/component/resolver"
D "github.com/miekg/dns"
)
@ -83,12 +84,12 @@ func newDoHClient(url string, r *Resolver) *dohClient {
return nil, err
}
ip, err := r.ResolveIPv4(host)
ip, err := resolver.ResolveIPWithResolver(host, r)
if err != nil {
return nil, err
}
return dialer.DialContext(ctx, "tcp4", net.JoinHostPort(ip.String(), port))
return dialer.DialContext(ctx, "tcp", net.JoinHostPort(ip.String(), port))
},
},
}