feat(dns): add Lua scripting for DNS queries

common/geodata/lua_test.go

@@ -0,0 +1,42 @@
+package geodata
+
+import (
+	"testing"
+
+	"github.com/xtls/xray-core/common/net"
+	lua "github.com/yuin/gopher-lua"
+)
+
+func TestLuaIPMatcherAcceptsNativeIP(t *testing.T) {
+	L := lua.NewState()
+	defer L.Close()
+	RegisterLua(L)
+	ip := L.NewUserData()
+	ip.Value = net.ParseIP("127.0.0.1")
+	L.SetGlobal("ip", ip)
+	if err := L.DoString(`
+		local matcher = require("xray.geodata").ipMatcher({"127.0.0.0/8"})
+		assert(matcher:Match(ip))
+		assert(matcher:AnyMatch({ip}))
+		assert(matcher:Matches({ip}))
+		local matched, unmatched = matcher:FilterIPs({ip})
+		assert(#matched == 1 and #unmatched == 0)
+		assert(matcher:Match(matched[1]))
+	`); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestLuaDomainMatcherUsesNativeMatcher(t *testing.T) {
+	L := lua.NewState()
+	defer L.Close()
+	RegisterLua(L)
+	if err := L.DoString(`
+		local matcher = require("xray.geodata").domainMatcher({"example.com"})
+		assert(matcher:MatchAny("example.com"))
+		assert(matcher:MatchAny("www.example.com"))
+		assert(#(matcher:Match("www.example.com")) == 1)
+	`); err != nil {
+		t.Fatal(err)
+	}
+}