feat(pkg/provider): add opendns

pkg/provider/list.go

@@ -13,6 +13,7 @@ func All() []Provider {
 		CloudflareSecurity(),
 		Google(),
 		LibreDNS(),
+		OpenDNS(),
 		Quad9(),
 		Quad9Secured(),
 		Quad9Unsecured(),

pkg/provider/list_test.go

@@ -1,15 +1,19 @@
 package provider
 
 import (
+	"net/netip"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
 )
 
 func Test_All(t *testing.T) {
 	t.Parallel()
+
+	t.Logf("%#v", netip.MustParseAddr("2620:119:35::35").As16())
+
 	providers := All()
-	assert.Len(t, providers, 15)
+	assert.Len(t, providers, 16)
 
 	for _, provider := range providers {
 		errMessage := "for provider " + provider.DoT.Name

pkg/provider/opendns.go

@@ -0,0 +1,35 @@
+package provider
+
+import "net/netip"
+
+func OpenDNS() Provider {
+	return Provider{
+		Name: "OpenDNS",
+		DNS: DNSServer{
+			IPv4: []netip.Addr{
+				netip.AddrFrom4([4]byte{208, 67, 222, 222}),
+				netip.AddrFrom4([4]byte{208, 67, 220, 220}),
+			},
+			IPv6: []netip.Addr{
+				netip.AddrFrom16([16]byte{0x26, 0x20, 0x1, 0x19, 0x0, 0x35, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x35}),
+				netip.AddrFrom16([16]byte{0x26, 0x20, 0x1, 0x19, 0x0, 0x53, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x53}),
+			},
+		},
+		DoT: DoTServer{
+			IPv4: []netip.Addr{
+				netip.AddrFrom4([4]byte{208, 67, 222, 222}),
+				netip.AddrFrom4([4]byte{208, 67, 220, 220}),
+			},
+			IPv6: []netip.Addr{
+				netip.AddrFrom16([16]byte{0x26, 0x20, 0x1, 0x19, 0x0, 0x35, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x35}),
+				netip.AddrFrom16([16]byte{0x26, 0x20, 0x1, 0x19, 0x0, 0x53, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x53}),
+			},
+			Name: "dns.opendns.com",
+			Port: defaultDoTPort,
+		},
+		// See https://support.opendns.com/hc/en-us/articles/360038086532-Using-DNS-over-HTTPS-DoH-with-OpenDNS
+		DoH: DoHServer{
+			URL: "https://dns.opendns.com/dns-query",
+		},
+	}
+}